/* ============================================================
   DevKit — design system
   Dark-first developer aesthetic. Refined terminal energy.
   Color DNA inherited from ConvertAtlas (orange→pink, cyan).
   ============================================================ */

:root[data-theme="dark"] {
  --bg: #070b14;
  --bg-2: #0b1120;
  --surface: #0e1525;
  --surface-2: #131c30;
  --surface-3: #1a2438;
  --border: rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.14);
  --text: #eef2fb;
  --text-soft: #aebbd4;
  --text-mute: #7d8cab;
  --primary: #ff7a18;
  --primary-2: #ff477e;
  --accent: #5dd6ff;
  --accent-soft: rgba(93,214,255,.12);
  --success: #2fd8a0;
  --danger: #ff5d73;
  --grid-line: rgba(255,255,255,.025);
  --glow-1: rgba(255,122,24,.16);
  --glow-2: rgba(93,214,255,.13);
  --code-bg: rgba(4,8,16,.6);
  --shadow: 0 24px 60px rgba(0,0,0,.45);
  --shadow-sm: 0 8px 24px rgba(0,0,0,.3);
  --shadow-md: 0 14px 40px rgba(0,0,0,.38);
  --ease: cubic-bezier(.16,1,.3,1);
}
:root[data-theme="light"] {
  --bg: #f6f8fc;
  --bg-2: #eef2f8;
  --surface: #ffffff;
  --surface-2: #f4f7fb;
  --surface-3: #eaeff7;
  --border: rgba(15,30,60,.1);
  --border-strong: rgba(15,30,60,.18);
  --text: #0f1830;
  --text-soft: #3c4d6b;
  --text-mute: #5d6e8c;
  --primary: #ec5d0a;
  --primary-2: #e22a63;
  --accent: #0c8fc4;
  --accent-soft: rgba(12,143,196,.1);
  --success: #0fa572;
  --danger: #d83048;
  --grid-line: rgba(15,30,60,.04);
  --glow-1: rgba(236,93,10,.1);
  --glow-2: rgba(12,143,196,.1);
  --code-bg: rgba(15,30,60,.04);
  --shadow: 0 24px 60px rgba(40,60,100,.14);
  --shadow-sm: 0 8px 24px rgba(40,60,100,.1);
  --shadow-md: 0 14px 40px rgba(40,60,100,.12);
  --ease: cubic-bezier(.16,1,.3,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background .3s ease, color .3s ease;
}
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { font-family: 'Sora', system-ui, sans-serif; line-height: 1.15; letter-spacing: -.02em; }
code, kbd, pre, .mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

/* ---- background ---- */
.dk-bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
                    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 100%);
}
.dk-bg-glow { position: fixed; z-index: -1; border-radius: 999px; filter: blur(120px); pointer-events: none; }
.dk-bg-glow-1 { width: 480px; height: 480px; background: var(--glow-1); top: -120px; left: -80px; }
.dk-bg-glow-2 { width: 520px; height: 520px; background: var(--glow-2); top: 120px; right: -140px; }

/* ---- containers ---- */
.dk-wrap { padding: 80px 0 96px; }
:where(h1,h2,h3,[id]) { scroll-margin-top: 88px; }
.dk-container { width: min(1140px, calc(100% - 40px)); margin: 0 auto; }
.dk-container-narrow { width: min(820px, calc(100% - 40px)); margin: 0 auto; }

/* ============ HEADER ============ */
.dk-header {
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: blur(18px) saturate(140%);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--border);
}
.dk-header-inner {
  width: min(1240px, calc(100% - 40px)); margin: 0 auto;
  display: flex; align-items: center; gap: 24px; height: 68px;
}
.dk-brand { display: inline-flex; align-items: center; gap: 11px; }
.dk-brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: .95rem; color: #fff;
  box-shadow: 0 8px 20px color-mix(in srgb, var(--primary) 40%, transparent);
}
.dk-brand-slash { opacity: .85; }
.dk-brand-name { font-family: 'Sora'; font-weight: 700; font-size: 1.25rem; letter-spacing: -.03em; line-height: 1; }
.dk-brand-accent { color: var(--primary); }
.dk-brand-text { display: inline-flex; flex-direction: column; gap: 2px; }
.dk-brand-suffix { font-family: 'JetBrains Mono'; font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); line-height: 1; }

.dk-nav { display: flex; align-items: center; gap: 2px; margin-left: 12px; }
.dk-nav-link {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 13px; border-radius: 10px; color: var(--text-soft);
  font-size: .92rem; font-weight: 500; white-space: nowrap;
  background: transparent; border: 0; cursor: pointer; font-family: inherit;
  transition: color .15s ease-in-out, background-color .15s ease-in-out;
}
.dk-nav-link i:first-child { font-size: .85rem; opacity: .8; }
.dk-nav-link:hover { color: var(--text); background: var(--surface-2); }
.dk-nav-link.is-active { color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, transparent); }
.dk-nav-link.is-active i:first-child { opacity: 1; }
/* Dropdown group */
.dk-nav-group { position: relative; }
.dk-nav-caret { font-size: .65rem !important; opacity: .6 !important; transition: transform .2s ease; }
.dk-nav-group.is-open .dk-nav-caret { transform: rotate(180deg); }
.dk-nav-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 268px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow); padding: 8px; z-index: 70;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.dk-nav-group.is-open .dk-nav-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dk-nav-menu a {
  display: flex; align-items: flex-start; gap: 12px; padding: 10px 12px; border-radius: 10px;
  color: var(--text-soft); transition: background-color .15s ease;
}
.dk-nav-menu a:hover { background: var(--surface-2); }
.dk-nav-menu a i { font-size: 1rem; color: var(--accent); margin-top: 3px; width: 18px; text-align: center; flex: none; }
.dk-nav-menu a span { display: flex; flex-direction: column; gap: 1px; }
.dk-nav-menu a b { color: var(--text); font-weight: 600; font-size: .92rem; }
.dk-nav-menu a em { color: var(--text-mute); font-style: normal; font-size: .78rem; }

.dk-header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.dk-search-trigger {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 11px; cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-mute); font-size: .9rem; transition: .18s ease;
}
.dk-search-trigger:hover { border-color: var(--border-strong); color: var(--text-soft); }
.dk-search-trigger kbd {
  font-size: .72rem; padding: 2px 6px; border-radius: 6px;
  background: var(--surface-3); border: 1px solid var(--border); color: var(--text-mute);
}
.dk-icon-btn {
  width: 40px; height: 40px; border-radius: 11px; cursor: pointer;
  display: grid; place-items: center; color: var(--text-soft);
  background: var(--surface-2); border: 1px solid var(--border); transition: .18s ease;
}
.dk-icon-btn:hover { color: var(--text); border-color: var(--border-strong); }
.dk-nav-toggle { display: none; }

@media (max-width: 980px) {
  .dk-nav { display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 14px 20px; gap: 4px; max-height: calc(100dvh - 68px); overflow-y: auto; }
  .dk-nav.is-open { display: flex; }
  .dk-nav-toggle { display: grid; }
  .dk-nav-link { padding: 12px 14px; font-size: 1rem; }
  /* On mobile the dropdown becomes a static, always-open group */
  .dk-nav-group { position: static; }
  .dk-nav-trigger { display: none; }
  .dk-nav-menu { position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; background: transparent; padding: 0 0 0 6px; min-width: 0; }
  .dk-nav-menu a em { display: none; }
  .dk-search-trigger span { display: none; }
  .dk-search-trigger kbd { display: none; }
}

/* ============ BUTTONS ============ */
.dk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px; cursor: pointer;
  padding: 12px 20px; min-height: 44px; border-radius: 12px; border: 1px solid transparent;
  font-family: 'Inter'; font-size: .95rem; font-weight: 600;
  transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .2s ease-out, transform .2s ease-out;
  -webkit-tap-highlight-color: transparent; touch-action: manipulation;
}
.dk-btn:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent); }
.dk-btn:disabled, .dk-btn[disabled], .dk-btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; transform: none; pointer-events: none; }
.dk-btn-primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.dk-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px color-mix(in srgb, var(--primary) 38%, transparent); }
.dk-btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px color-mix(in srgb, var(--primary) 30%, transparent); filter: brightness(.94); }
.dk-btn-ghost { color: var(--text); background: var(--surface-2); border-color: var(--border); }
.dk-btn-ghost:hover { border-color: var(--border-strong); background: var(--surface-3); }
.dk-btn-ghost:active { transform: translateY(0); background: var(--surface-2); }
.dk-btn-mini { padding: 6px 12px; min-height: 0; font-size: .82rem; border-radius: 9px; }

/* ============ HERO ============ */
.dk-hero { padding: 80px 0 56px; text-align: center; position: relative; }
.dk-hero-badge {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px;
  padding: 7px 14px; border-radius: 999px; font-size: .82rem; font-weight: 500;
  background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--accent);
}
.dk-hero-badge .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--success); box-shadow: 0 0 10px var(--success); animation: dkPulse 2s infinite; }
@keyframes dkPulse { 0%,100%{opacity:1;} 50%{opacity:.4;} }
.dk-hero h1 {
  font-size: clamp(2.2rem, 6vw, 4.2rem); font-weight: 800; margin: 0 auto 22px;
  max-width: 16ch;
}
.dk-hero h1 .grad {
  background: linear-gradient(120deg, var(--primary), var(--primary-2) 60%, var(--accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.dk-hero-lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-soft); max-width: 56ch; margin: 0 auto 34px; }
.dk-hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 18px; }
.dk-hero-proof { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; color: var(--text-mute); font-size: .9rem; margin-top: 28px; }
.dk-hero-proof span { display: inline-flex; align-items: center; gap: 8px; }
.dk-hero-proof i { color: var(--accent); }

/* staggered reveal */
.dk-hero > * { animation: dkFadeUp .7s both; }
.dk-hero-badge { animation-delay: .05s; }
.dk-hero h1 { animation-delay: .15s; }
.dk-hero-lead { animation-delay: .25s; }
.dk-hero-cta { animation-delay: .35s; }
.dk-hero-proof { animation-delay: .45s; }
@keyframes dkFadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* ============ SECTION HEADINGS ============ */
.dk-section { padding: 44px 0; }
.dk-section-head { display: flex; align-items: end; justify-content: space-between; margin-bottom: 28px; gap: 16px; flex-wrap: wrap; }
.dk-section-head h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0; position: relative; padding-left: 16px; letter-spacing: -.02em; }
.dk-section-head h2::before { content: ''; position: absolute; left: 0; top: .15em; bottom: .15em; width: 4px; border-radius: 4px; background: linear-gradient(180deg, var(--primary), var(--primary-2)); }
.dk-section-head p { color: var(--text-mute); margin: 6px 0 0; }
.dk-section-link { color: var(--accent); font-size: .92rem; font-weight: 600; }

/* ============ TOOL CARDS ============ */
.dk-tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.dk-tool-card {
  position: relative; display: flex; flex-direction: column; gap: 10px;
  padding: 22px; border-radius: 18px; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease;
}
.dk-tool-card::before {
  content: ''; position: absolute; inset: 0; padding: 1px; border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2)); opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; transition: .2s ease;
}
.dk-tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.dk-tool-card:hover::before { opacity: 1; }
.dk-tool-card-icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  font-size: 1.15rem; color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
}
.dk-tool-card h3 { font-size: 1.12rem; margin: 4px 0 0; }
.dk-tool-card p { color: var(--text-mute); font-size: .9rem; margin: 0; flex: 1; }
.dk-tool-card-cat { font-size: .74rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); font-family: 'JetBrains Mono'; }

/* ============ CATEGORY SECTIONS (hub) ============ */
.dk-cat { margin-bottom: 44px; }
.dk-cat-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.dk-cat-head i { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: var(--accent); background: var(--accent-soft); }
.dk-cat-head h2 { font-size: 1.4rem; margin: 0; }
.dk-cat-head p { color: var(--text-mute); margin: 0; font-size: .9rem; }

/* ============ BREADCRUMBS ============ */
.dk-crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-size: .85rem; color: var(--text-mute); margin-bottom: 28px; font-family: 'JetBrains Mono'; }
.dk-crumbs a { color: var(--accent); }
.dk-crumbs .sep { opacity: .5; }
.dk-crumbs .cur { color: var(--text-soft); }

/* ============ TOOL PAGE ============ */
.dk-tool-head { display: flex; align-items: center; gap: 18px; margin-bottom: 30px; }
.dk-tool-head-icon {
  flex: none; width: 60px; height: 60px; border-radius: 16px; display: grid; place-items: center;
  font-size: 1.5rem; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--primary) 35%, transparent);
}
.dk-tool-head h1 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); margin: 0 0 5px; }
.dk-tool-head p { color: var(--text-soft); margin: 0; }

.dk-tool-app {
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
  padding: 24px; margin-bottom: 30px; box-shadow: var(--shadow-sm);
}
.dk-grid { display: grid; gap: 16px; }
.dk-grid-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .dk-grid-2 { grid-template-columns: 1fr; } }
.dk-field { display: flex; flex-direction: column; gap: 8px; }
.dk-label { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--text-mute); font-family: 'JetBrains Mono'; display: inline-flex; align-items: center; gap: 8px; }
.dk-textarea, .dk-output {
  width: 100%; min-height: 240px; max-height: 520px; resize: vertical; padding: 15px 16px;
  background: var(--code-bg); border: 1px solid var(--border); border-radius: 13px;
  color: var(--text); font-family: 'JetBrains Mono'; font-size: .9rem; line-height: 1.6;
  overflow: auto;
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
.dk-textarea { tab-size: 2; }
.dk-textarea::placeholder, .dk-input::placeholder { color: var(--text-mute); opacity: .7; }
.dk-textarea:hover, .dk-input:hover { border-color: var(--border-strong); }
.dk-textarea:focus, .dk-input:focus, .dk-color-input:focus, select.dk-input:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
  background: var(--surface);
}
.dk-textarea--lg { min-height: 320px; max-height: 600px; }
.dk-textarea--sm { min-height: 120px; max-height: 340px; }
.dk-output { margin: 0; white-space: pre-wrap; word-break: break-word; overflow: auto; }
@media (max-width: 720px) {
  .dk-textarea, .dk-output { max-height: 420px; }
  .dk-textarea--lg { max-height: 460px; }
}
.dk-input {
  padding: 11px 14px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 11px;
  color: var(--text); font-size: .92rem; font-family: 'JetBrains Mono';
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
.dk-input-sm { width: 110px; }
select.dk-input { cursor: pointer; appearance: none; -webkit-appearance: none; padding-right: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%238b97ad' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 13px center; background-size: 11px; }
.dk-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 16px 0; }
.dk-status { font-size: .85rem; font-weight: 600; color: var(--success); font-family: 'JetBrains Mono'; }
.dk-status.is-error { color: var(--danger); }
.dk-seg { display: inline-flex; background: var(--surface-2); border: 1px solid var(--border); border-radius: 11px; padding: 3px; gap: 2px; }
.dk-seg button { padding: 8px 16px; border: 0; background: transparent; color: var(--text-soft); font-weight: 600; font-size: .88rem; border-radius: 8px; cursor: pointer; transition: .15s ease; }
.dk-seg button:hover { color: var(--text); }
.dk-seg button.is-active { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; box-shadow: var(--shadow-sm); }

/* hash rows */
.dk-hash-rows { display: flex; flex-direction: column; gap: 10px; }
.dk-hash-row { display: grid; grid-template-columns: 92px 1fr auto; align-items: center; gap: 12px; padding: 11px 14px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 12px; }
.dk-hash-algo { font-family: 'JetBrains Mono'; font-weight: 700; color: var(--accent); font-size: .82rem; }
.dk-hash-val { font-family: 'JetBrains Mono'; font-size: .8rem; word-break: break-all; color: var(--text); }
@media (max-width: 600px){ .dk-hash-row{ grid-template-columns:1fr auto; } .dk-hash-algo{ grid-column:1/-1; } }

/* case grid */
.dk-case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 10px; }
.dk-case-item { padding: 12px 14px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 11px; }
.dk-case-item .lbl { font-size: .72rem; text-transform: uppercase; color: var(--text-mute); font-family: 'JetBrains Mono'; letter-spacing: .04em; display: flex; justify-content: space-between; align-items: center; }
.dk-case-item .val { font-family: 'JetBrains Mono'; font-size: .9rem; word-break: break-all; margin-top: 5px; color: var(--text); }
.dk-copy-mini { cursor: pointer; border: 0; background: transparent; color: var(--text-mute); font-size: .8rem; }
.dk-copy-mini:hover { color: var(--accent); }

.dk-noscript { color: var(--text-mute); font-style: italic; }

/* ============ SEO ARTICLE ============ */
.dk-article { max-width: 760px; color: var(--text-soft); line-height: 1.75; margin-bottom: 36px; }
.dk-article h2 { color: var(--text); font-size: 1.4rem; margin: 34px 0 12px; }
.dk-article p { margin: 0 0 16px; }
.dk-lead { font-size: 1.1rem; color: var(--text); }
.dk-steps { padding-left: 22px; } .dk-steps li { margin-bottom: 8px; }
.dk-faq { display: flex; flex-direction: column; gap: 10px; }
.dk-faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 13px; padding: 2px 18px; }
.dk-faq summary { cursor: pointer; font-weight: 600; color: var(--text); padding: 15px 0; list-style: none; }
.dk-faq summary::-webkit-details-marker { display: none; }
.dk-faq summary::after { content: '+'; float: right; color: var(--accent); font-size: 1.3rem; line-height: 1; }
.dk-faq details[open] summary::after { content: '–'; }
.dk-faq p { color: var(--text-mute); margin: 0 0 15px; }

/* related */
.dk-related h2 { font-size: 1.3rem; margin-bottom: 16px; }
.dk-related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 12px; }
.dk-related-card { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 13px; transition: .18s ease; }
.dk-related-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.dk-related-card i { color: var(--primary); }

/* ============ HTTP STATUS ============ */
.dk-http-group { margin-bottom: 36px; }
.dk-http-cat { font-size: 1.3rem; margin: 0 0 16px; }
.dk-http-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 12px; }
.dk-http-card { display: flex; align-items: center; gap: 14px; padding: 14px 16px; background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--text-mute); border-radius: 12px; transition: transform .2s var(--ease), border-color .2s ease, box-shadow .2s ease; }
.dk-http-card:hover { transform: translateX(3px); border-color: var(--accent); box-shadow: var(--shadow-sm); }
.dk-http-code { font-family: 'JetBrains Mono'; font-weight: 700; font-size: 1.1rem; }
.dk-http-name { color: var(--text-mute); font-size: .9rem; }
.dk-http-1xx { border-left-color: #8aa2ff; }
.dk-http-2xx { border-left-color: var(--success); }
.dk-http-3xx { border-left-color: var(--accent); }
.dk-http-4xx { border-left-color: var(--primary); }
.dk-http-5xx { border-left-color: var(--danger); }
.dk-code-hero { display: flex; align-items: center; gap: 24px; padding: 28px; background: var(--surface); border: 1px solid var(--border); border-left: 6px solid var(--text-mute); border-radius: 20px; margin-bottom: 28px; }
.dk-code-hero.dk-http-1xx { border-left-color: #8aa2ff; }
.dk-code-hero.dk-http-2xx { border-left-color: var(--success); }
.dk-code-hero.dk-http-3xx { border-left-color: var(--accent); }
.dk-code-hero.dk-http-4xx { border-left-color: var(--primary); }
.dk-code-hero.dk-http-5xx { border-left-color: var(--danger); }
.dk-code-big { font-family: 'JetBrains Mono'; font-size: clamp(2.6rem,7vw,4rem); font-weight: 800; line-height: 1; }
.dk-code-name { margin: 0 0 6px; font-size: clamp(1.3rem,3vw,1.8rem); }
.dk-code-class { color: var(--text-mute); font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; font-family: 'JetBrains Mono'; }

/* ============ ADS ============ */
.ad-slot { margin: 28px 0; text-align: center; }
.ad-label { font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-mute); margin-bottom: 6px; }

/* ============ COMMAND PALETTE ============ */
.dk-palette { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-start; justify-content: center; padding-top: 12vh; }
.dk-palette[hidden] { display: none; }
.dk-palette-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.55); backdrop-filter: blur(4px); }
.dk-palette-card { position: relative; width: min(580px, calc(100% - 32px)); background: var(--surface); border: 1px solid var(--border-strong); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; animation: dkPaletteIn .18s ease; }
@keyframes dkPaletteIn { from { opacity: 0; transform: translateY(-8px) scale(.98); } to { opacity: 1; transform: none; } }
.dk-palette-input-row { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--border); color: var(--text-mute); }
.dk-palette-input-row input { flex: 1; background: transparent; border: 0; outline: 0; color: var(--text); font-size: 1.05rem; font-family: 'Inter'; }
.dk-palette-input-row kbd { font-size: .7rem; padding: 3px 7px; border-radius: 6px; background: var(--surface-3); border: 1px solid var(--border); }
.dk-palette-results { list-style: none; margin: 0; padding: 8px; max-height: 50vh; overflow-y: auto; }
.dk-palette-results li { display: flex; align-items: center; gap: 12px; padding: 11px 13px; border-radius: 11px; cursor: pointer; }
.dk-palette-results li.is-active, .dk-palette-results li:hover { background: var(--surface-2); }
.dk-palette-results li i { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent); font-size: .85rem; }
.dk-palette-results .pr-name { font-weight: 600; }
.dk-palette-results .pr-cat { margin-left: auto; font-size: .74rem; color: var(--text-mute); font-family: 'JetBrains Mono'; }
.dk-palette-empty { padding: 24px; text-align: center; color: var(--text-mute); }

/* ============ FOOTER ============ */
.dk-footer { border-top: 1px solid var(--border); margin-top: 56px; background: var(--bg-2); }
.dk-footer-inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.3fr 2.4fr; gap: 48px; padding: 52px 0 36px; }
.dk-footer-brand p { color: var(--text-mute); font-size: .92rem; margin: 14px 0 0; max-width: 38ch; line-height: 1.6; }
.dk-footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.dk-footer-cols h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-soft); margin: 0 0 14px; font-family: 'JetBrains Mono'; }
.dk-footer-cols a { display: flex; align-items: center; gap: 9px; color: var(--text-mute); font-size: .9rem; padding: 5px 0; transition: color .15s ease, transform .15s ease; }
.dk-footer-cols a i { font-size: .72rem; opacity: .5; width: 14px; text-align: center; transition: opacity .15s ease; }
.dk-footer-cols a:hover { color: var(--accent); transform: translateX(2px); }
.dk-footer-cols a:hover i { opacity: 1; color: var(--accent); }
.dk-footer-all { margin-top: 8px; color: var(--accent) !important; font-weight: 600; }
.dk-footer-all:hover { transform: none !important; }
.dk-footer-bottom { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; padding: 20px 0 36px; border-top: 1px solid var(--border); color: var(--text-mute); font-size: .85rem; }
.dk-footer-badges { display: flex; gap: 16px; flex-wrap: wrap; }
.dk-footer-badge { display: inline-flex; align-items: center; gap: 7px; color: var(--text-mute); font-size: .82rem; }
.dk-footer-badge i { color: var(--success); font-size: .8rem; }
@media (max-width: 920px) { .dk-footer-inner { grid-template-columns: 1fr; gap: 32px; } .dk-footer-cols { grid-template-columns: 1fr 1fr; } }
@media (max-width: 760px) { .dk-footer-bottom { flex-direction: column; align-items: flex-start; } }
@media (max-width: 480px) { .dk-footer-cols { grid-template-columns: 1fr; } }

/* 404 */
.dk-404 { text-align: center; padding: 80px 0; }
.dk-404 h1 { font-size: 5rem; margin: 0; background: linear-gradient(135deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.dk-404 a { color: var(--accent); }

/* cookie (reuse minimal) */
.cookie-consent { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 90; width: min(620px, calc(100% - 32px)); }
.cookie-panel { background: var(--surface); border: 1px solid var(--border-strong); border-radius: 18px; padding: 18px; box-shadow: var(--shadow); }
.cookie-panel__top { display: flex; gap: 14px; }
.cookie-panel__icon { color: var(--primary); font-size: 1.3rem; width: 1.3rem; min-width: 1.3rem; height: 1.5rem; display: inline-flex; align-items: center; justify-content: center; }
.cookie-panel__title { display: block; margin-bottom: 4px; }
.cookie-panel__text { color: var(--text-mute); font-size: .88rem; margin: 0; }
.cookie-panel__text a { color: var(--accent); }
.cookie-panel__actions { display: flex; gap: 10px; justify-content: flex-end; align-items: center; margin-top: 16px; flex-wrap: wrap; }
.cookie-panel__actions .cookie-btn { flex: 0 1 auto; }
/* Customize sits left, Accept all right (collapsed). When expanded, Reject optional
   takes the left slot so the optional actions group to the left of Accept all. */
[data-cookie-toggle-cats] { margin-right: auto; }
[data-cookie-toggle-cats].is-active { color: var(--accent); border-color: var(--accent); }
[data-cookie-choice="necessary"][data-cookie-expanded] { margin-right: auto; }

/* granular categories */
.cookie-cats { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
/* The [hidden] attribute must override .cookie-cats/.dk-btn display rules,
   otherwise the toggles and expanded buttons show before Customize is clicked. */
.cookie-cats[hidden] { display: none; }
.cookie-panel__actions .cookie-btn[hidden] { display: none; }
.cookie-cat { display: flex; align-items: center; gap: 14px; cursor: pointer; }
.cookie-cat.is-locked { cursor: default; }
.cookie-cat__info { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.cookie-cat__name { font-weight: 600; font-size: .92rem; }
.cookie-cat__desc { color: var(--text-mute); font-size: .8rem; line-height: 1.45; }
.cookie-switch { flex: none; width: 42px; height: 24px; border-radius: 999px; background: var(--surface-3); border: 1px solid var(--border); position: relative; transition: background .2s ease; cursor: pointer; }
.cookie-switch > span { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 999px; background: var(--text-mute); transition: transform .2s ease, background .2s ease; }
.cookie-switch.is-on { background: linear-gradient(135deg, var(--primary), var(--primary-2)); border-color: transparent; }
.cookie-switch.is-on > span { transform: translateX(18px); background: #fff; }
.cookie-switch.is-locked { opacity: .65; cursor: default; }
.cookie-switch:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* persistent cookie button */
.cookie-fab { position: fixed; bottom: 18px; left: 18px; z-index: 89; width: 46px; height: 46px; border-radius: 999px; display: grid; place-items: center; cursor: pointer; color: var(--accent); background: var(--surface); border: 1px solid var(--border-strong); box-shadow: var(--shadow-sm); font-size: 1.15rem; transition: transform .18s ease, border-color .18s ease; }
.cookie-fab:hover { transform: translateY(-2px) scale(1.05); border-color: var(--accent); }
.cookie-fab[hidden] { display: none; }

/* copy / status toasts (bottom-right) */
.dk-toast-wrap { position: fixed; bottom: 18px; right: 18px; z-index: 95; display: flex; flex-direction: column; gap: 10px; align-items: flex-end; pointer-events: none; }
.dk-toast { display: inline-flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border-strong); box-shadow: var(--shadow); color: var(--text); font-size: .9rem; font-weight: 500; opacity: 0; transform: translateY(12px) scale(.96); transition: opacity .28s ease, transform .28s ease; max-width: 320px; }
.dk-toast.is-in { opacity: 1; transform: none; }
.dk-toast i { color: #2fd8a0; font-size: 1.05rem; }
.dk-toast--error i { color: #ff5d73; }
@media (max-width: 600px) {
  .cookie-fab { bottom: 14px; left: 14px; width: 42px; height: 42px; }
  .dk-toast-wrap { right: 14px; bottom: 14px; left: 14px; align-items: stretch; }
  .dk-toast { max-width: none; }
  .cookie-consent { bottom: 10px; width: calc(100% - 20px); }
  .cookie-panel { padding: 16px; max-height: 86vh; overflow-y: auto; }
  .cookie-panel__actions { gap: 8px; }
  .cookie-panel__actions .cookie-btn { flex: 1 1 100%; justify-content: center; }
  [data-cookie-toggle-cats], [data-cookie-choice="necessary"][data-cookie-expanded] { margin-right: 0; }
}

/* utility */
.dk-reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.dk-reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { *, ::before, ::after { animation: none !important; transition: none !important; } .dk-reveal { opacity: 1; transform: none; } }

/* ============ Global focus-visible (a11y) ============ */
/* Visible keyboard focus on every interactive element that lacks a bespoke ring. */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
summary:focus-visible,
.dk-guide-card:focus-visible,
.ac-course-card:focus-visible,
.ac-lesson-row:focus-visible,
.ac-sb-link:focus-visible,
.ac-related-card:focus-visible,
.ac-lessonnav-btn:focus-visible,
.dk-section-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}
/* Inputs get a focus ring in addition to the border colour shift (design-system spec). */
.dk-textarea:focus-visible, .dk-input:focus-visible, .dk-color-input:focus-visible, select.dk-input:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ============ ABOUT PAGE ============ */
.dk-about-hero { padding: 24px 0 8px; max-width: 820px; }
.dk-team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.dk-team-card { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 26px; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; }
.dk-team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.dk-avatar { margin-bottom: 16px; }
.dk-avatar svg { border-radius: 18px; display: block; }
.dk-team-name { font-size: 1.2rem; margin: 0 0 3px; }
.dk-team-role { color: var(--accent); font-size: .85rem; font-weight: 600; font-family: 'JetBrains Mono'; margin-bottom: 12px; }
.dk-team-bio { color: var(--text-soft); font-size: .92rem; line-height: 1.65; margin: 0 0 16px; }
.dk-team-focus { display: flex; flex-wrap: wrap; gap: 7px; }
.dk-team-focus span { font-size: .76rem; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-mute); }
.dk-team-note { margin-top: 22px; color: var(--text-mute); font-size: .9rem; max-width: 760px; line-height: 1.6; }
.dk-team-note a { color: var(--accent); }
.dk-about-cta { text-align: center; padding: 48px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 22px; position: relative; overflow: hidden; }
.dk-about-cta::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 80% at 50% 0%, var(--glow-1), transparent 70%); pointer-events: none; }
.dk-about-cta > * { position: relative; }
.dk-about-cta h2 { font-size: clamp(1.5rem, 3vw, 2rem); }

/* ---- chmod calculator ---- */
.dk-chmod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.dk-chmod-role { background: var(--code-bg); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.dk-chmod-role-name { font-family: 'JetBrains Mono'; font-weight: 700; color: var(--accent); font-size: .85rem; margin-bottom: 10px; }
.dk-chmod-role label { display: flex; align-items: center; gap: 8px; font-size: .9rem; padding: 4px 0; cursor: pointer; }
@media (max-width: 560px){ .dk-chmod-grid { grid-template-columns: 1fr; } }

/* ============ TOOL HERO (v4 — illustrated, professional) ============ */
.dk-tool-hero { position: relative; border-radius: 24px; overflow: hidden; margin-bottom: 32px; border: 1px solid var(--border); background: var(--surface); min-height: 260px; display: flex; align-items: stretch; }
.dk-tool-hero-art { position: absolute; inset: 0; z-index: 0; }
.dk-tool-hero-art .dk-tool-hero-svg { width: 100%; height: 100%; display: block; }
.dk-tool-hero-overlay { position: relative; z-index: 1; padding: 40px 44px; display: flex; flex-direction: column; justify-content: center; gap: 14px; max-width: 720px; background: linear-gradient(90deg, color-mix(in srgb, var(--surface) 92%, transparent) 55%, transparent 100%); }
:root[data-theme="light"] .dk-tool-hero-overlay { background: linear-gradient(90deg, color-mix(in srgb, var(--surface) 95%, transparent) 60%, transparent 100%); }
.dk-tool-hero-cat { display: inline-flex; align-items: center; gap: 8px; align-self: flex-start; padding: 6px 13px; border-radius: 999px; font-size: .78rem; font-weight: 600; font-family: 'JetBrains Mono'; letter-spacing: .02em; color: var(--accent); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); }
.dk-tool-hero-overlay h1 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); margin: 0; line-height: 1.1; }
.dk-tool-hero-overlay > p { color: var(--text-soft); font-size: 1.08rem; margin: 0; max-width: 52ch; }
.dk-tool-hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 6px; }
.dk-tool-hero-meta span { display: inline-flex; align-items: center; gap: 7px; font-size: .86rem; color: var(--text-mute); }
.dk-tool-hero-meta i { color: var(--accent); }
@media (max-width: 720px) {
  .dk-tool-hero { min-height: 0; }
  .dk-tool-hero-art { position: relative; height: 150px; }
  .dk-tool-hero { flex-direction: column; }
  .dk-tool-hero-overlay { background: var(--surface); padding: 26px 24px; max-width: none; }
}

/* refined widget app container */
.dk-tool-app { box-shadow: var(--shadow-sm); }
.dk-tool-app .dk-label { display: flex; align-items: center; }

/* category color accents on tool hero cards (hub/home) via data attr */

/* ---- percentage calculator rows ---- */
.dk-pct-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 14px 0; border-bottom: 1px solid var(--border); color: var(--text-soft); }
.dk-pct-row:last-child { border-bottom: 0; }
.dk-pct-res { margin-left: auto; color: var(--accent); font-family: 'JetBrains Mono'; font-size: 1.15rem; min-width: 80px; text-align: right; }

/* ============ CATEGORY LANDING ============ */
.dk-cat-hero { display: flex; align-items: center; gap: 20px; margin-bottom: 32px; }
.dk-cat-hero-icon { flex: none; width: 64px; height: 64px; border-radius: 18px; display: grid; place-items: center; font-size: 1.6rem; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: 0 12px 28px color-mix(in srgb, var(--primary) 32%, transparent); }
.dk-cat-hero h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); margin: 0 0 6px; }
.dk-cat-hero p { color: var(--text-soft); margin: 0; max-width: 70ch; }
.dk-cat-nav { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--border); }
.dk-cat-nav-label { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-mute); font-family: 'JetBrains Mono'; margin-bottom: 14px; }
.dk-cat-nav-links { display: flex; flex-wrap: wrap; gap: 10px; }
.dk-cat-nav-links a { display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; border-radius: 11px; background: var(--surface); border: 1px solid var(--border); color: var(--text-soft); font-size: .9rem; font-weight: 500; transition: .18s ease; }
.dk-cat-nav-links a:hover { border-color: var(--accent); color: var(--text); transform: translateY(-2px); }
.dk-cat-nav-links i { color: var(--accent); }
@media (max-width: 600px){ .dk-cat-hero { flex-direction: column; text-align: center; } }

/* ============ GUIDES / BLOG ============ */
.dk-guide-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.dk-guide-card { display: flex; flex-direction: column; gap: 10px; padding: 24px; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; }
.dk-guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.dk-guide-card h2, .dk-guide-card h3 { margin: 0; font-size: 1.18rem; line-height: 1.25; }
.dk-guide-card p { color: var(--text-mute); font-size: .92rem; margin: 0; flex: 1; }
.dk-guide-cat { display: inline-block; align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); font-family: 'JetBrains Mono'; }
.dk-guide-meta { display: inline-flex; flex-wrap: wrap; gap: 16px; color: var(--text-mute); font-size: .82rem; }
.dk-guide-meta i { margin-right: 5px; }
.dk-guide-head { margin-bottom: 30px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.dk-guide-head h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 12px 0; line-height: 1.15; }
.dk-guide-body h2 { font-size: 1.5rem; }
.dk-guide-body p, .dk-guide-body li { font-size: 1.05rem; }
.dk-guide-toolcta { display: flex; align-items: center; gap: 16px; padding: 18px 20px; margin: 24px 0; border-radius: 16px; background: linear-gradient(120deg, color-mix(in srgb, var(--primary) 10%, var(--surface)), var(--surface)); border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent); transition: .2s ease; }
.dk-guide-toolcta:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.dk-guide-toolcta-icon { flex: none; width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; font-size: 1.2rem; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.dk-guide-toolcta-text { display: flex; flex-direction: column; gap: 2px; }
.dk-guide-toolcta-text strong { color: var(--text); font-size: 1.02rem; }
.dk-guide-toolcta-text span { color: var(--text-mute); font-size: .9rem; }
.dk-guide-toolcta-arrow { margin-left: auto; color: var(--primary); }

/* ============ FAVORITES + MY TOOLS ============ */
.dk-fav-btn { display: inline-flex; align-items: center; gap: 7px; padding: 7px 14px; border-radius: 999px; cursor: pointer; font-size: .85rem; font-weight: 600; font-family: 'Inter'; color: var(--text-soft); background: var(--surface-2); border: 1px solid var(--border); transition: .18s ease; }
.dk-fav-btn:hover { border-color: var(--primary); color: var(--text); }
.dk-fav-btn.is-fav { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); border-color: transparent; }
.dk-fav-btn.is-fav i { color: #fff; }
.dk-mytools-block { margin-bottom: 28px; }
.dk-mytools-h { display: flex; align-items: center; gap: 9px; font-size: 1.05rem; margin: 0 0 14px; color: var(--text-soft); }
.dk-mytools-h i { color: var(--primary); }
.dk-mytools .dk-tool-card { padding: 18px; }
.dk-mytools .dk-tool-card h3 { font-size: 1rem; }

/* ============ GUIDE ILLUSTRATIONS ============ */
.dk-guide-hero { border-radius: 20px; overflow: hidden; border: 1px solid var(--border); margin-bottom: 32px; background: var(--surface); }
.dk-guide-hero-svg { width: 100%; height: auto; display: block; }
.dk-guide-fig { margin: 28px 0; text-align: center; }
.dk-guide-fig .dk-fig-svg { width: 100%; max-width: 560px; height: auto; border-radius: 16px; border: 1px solid var(--border); background: var(--surface); }
.dk-guide-fig figcaption { margin-top: 10px; font-size: .88rem; color: var(--text-mute); font-style: italic; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ============ HOME v6 ============ */
.dk-hero-home { padding-top: 56px; padding-bottom: 36px; text-align: left; position: relative; overflow: hidden; }
.dk-hero-bg { position: absolute; inset: -20% -10% auto -10%; height: 520px; pointer-events: none; z-index: 0;
  background:
    radial-gradient(50% 60% at 18% 20%, color-mix(in srgb, var(--primary) 18%, transparent), transparent 70%),
    radial-gradient(45% 55% at 82% 10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%);
  filter: blur(8px); opacity: .9; }
.dk-hero-home .dk-container { position: relative; z-index: 1; }
.dk-hero-home-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 48px; align-items: center; }
.dk-hero-home .dk-hero-badge { margin-bottom: 22px; }
.dk-hero-home h1 { font-size: clamp(2.1rem, 4.5vw, 3.6rem); margin: 0 0 18px; max-width: 16ch; letter-spacing: -.025em; line-height: 1.05; }
.dk-hero-home .dk-hero-lead { margin: 0 0 26px; }
.dk-hero-home .dk-hero-cta { justify-content: flex-start; margin-bottom: 28px; }
.dk-kbd-inline { margin-left: 4px; font-size: .72rem; opacity: .7; padding: 1px 5px; border-radius: 5px; background: var(--surface-3); border: 1px solid var(--border); }
.dk-hero-stats { display: flex; gap: 30px; flex-wrap: wrap; }
.dk-hero-stats div { display: flex; flex-direction: column; }
.dk-hero-stats strong { font-family: 'Sora'; font-size: 1.9rem; font-weight: 800; background: linear-gradient(120deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1; }
.dk-hero-stats span { font-size: .8rem; color: var(--text-mute); margin-top: 4px; }
.dk-hero-proof { justify-content: flex-start; }

/* Interactive hero demo (live JSON formatter — proves in-browser claim) */
.dk-hero-home-art { min-width: 0; }
.dk-hero-demo { background: #0a0f1c; border: 1px solid var(--border-strong); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); min-width: 0; max-width: 100%; }
:root[data-theme="light"] .dk-hero-demo { background: #0c1426; }
.dk-hero-terminal-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: rgba(255,255,255,.04); border-bottom: 1px solid rgba(255,255,255,.08); }
.dk-hero-terminal-bar span { width: 11px; height: 11px; border-radius: 999px; background: #ff5f57; }
.dk-hero-terminal-bar span:nth-child(2) { background: #febc2e; }
.dk-hero-terminal-bar span:nth-child(3) { background: #28c840; }
.dk-hero-terminal-bar em { margin-left: auto; font-style: normal; font-family: 'JetBrains Mono'; font-size: .74rem; color: #8a98b5; }
.dk-hero-demo-body { padding: 16px; min-width: 0; }
.dk-hero-demo-label { display: inline-flex; align-items: center; gap: 7px; font-size: .76rem; color: #8a98b5; margin-bottom: 8px; }
.dk-hero-demo-label i { color: var(--accent); }
.dk-hero-demo-in { width: 100%; resize: vertical; max-height: 180px; min-height: 64px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.1); border-radius: 10px; padding: 11px 13px; color: #cdd8ee; font-family: 'JetBrains Mono', monospace; font-size: .82rem; line-height: 1.6; outline: none; overflow-y: auto; transition: border-color .15s ease; }
.dk-hero-demo-in:focus { border-color: var(--accent); }
.dk-hero-demo-arrow { font-size: .72rem; color: #9aa8c5; margin: 11px 2px 9px; display: flex; align-items: center; gap: 6px; }
.dk-hero-demo-arrow i { color: #4ade80; }
.dk-hero-demo-out { margin: 0; padding: 13px; background: rgba(0,0,0,.25); border-radius: 10px; font-family: 'JetBrains Mono', monospace; font-size: .82rem; line-height: 1.7; color: #aebbd4; overflow: auto; min-height: 96px; max-height: 240px; white-space: pre; }
.dk-hero-demo-out .c-key { color: #5dd6ff; }
.dk-hero-demo-out .c-fn { color: #ffb547; }
.dk-hero-demo-out .c-str { color: #2fd8a0; }
.dk-hero-demo-out .c-ok { color: #ff7a18; font-weight: 700; }
.dk-hero-demo-out .c-mute { color: #5a6b8c; }
.dk-hero-demo-out .c-err { color: #ff6b81; }
.dk-hero-demo-in::-webkit-scrollbar, .dk-hero-demo-out::-webkit-scrollbar { width: 9px; height: 9px; }
.dk-hero-demo-in::-webkit-scrollbar-thumb, .dk-hero-demo-out::-webkit-scrollbar-thumb { background: rgba(255,255,255,.16); border-radius: 6px; }
.dk-hero-demo-in::-webkit-scrollbar-thumb:hover, .dk-hero-demo-out::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.26); }
@media (max-width: 900px) {
  .dk-hero-demo-in { max-height: 130px; }
  .dk-hero-demo-out { max-height: 200px; }
}

.dk-home-why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.dk-home-why-item { position: relative; padding: 28px; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); overflow: hidden; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; }
.dk-home-why-item::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, var(--accent), transparent); opacity: 0; transition: opacity .2s ease; }
.dk-home-why-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.dk-home-why-item:hover::before { opacity: 1; }
.dk-home-why-icon { width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; font-size: 1.2rem; color: var(--accent); background: var(--accent-soft); margin-bottom: 16px; }
.dk-home-why-item h3 { margin: 0 0 8px; font-size: 1.12rem; }
.dk-home-why-item p { margin: 0; color: var(--text-mute); font-size: .92rem; line-height: 1.6; }

@media (max-width: 900px) {
  .dk-hero-home-grid { grid-template-columns: 1fr; gap: 32px; }
  .dk-hero-home-art { order: -1; }
  .dk-home-why-grid { grid-template-columns: 1fr; }
}

.dk-diff-out { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; }
.dk-diff-row { display: flex; gap: 14px; padding: 9px 13px; border-radius: 9px; font-family: 'JetBrains Mono'; font-size: .84rem; align-items: baseline; }
.dk-diff-row .k { font-weight: 700; flex: none; min-width: 140px; }
.dk-diff-row .v { color: var(--text-soft); word-break: break-word; }
.dk-diff-row.added { background: color-mix(in srgb, #2fd8a0 14%, transparent); }
.dk-diff-row.added .k { color: #2fd8a0; }
.dk-diff-row.removed { background: color-mix(in srgb, #ff5d73 14%, transparent); }
.dk-diff-row.removed .k { color: #ff5d73; }
.dk-diff-row.changed { background: color-mix(in srgb, var(--primary) 12%, transparent); }
.dk-diff-row.changed .k { color: var(--primary); }
.dk-diff-row.changed s { color: var(--text-mute); }
.dk-diff-same { padding: 14px; border-radius: 11px; background: color-mix(in srgb, #2fd8a0 12%, transparent); color: #2fd8a0; font-weight: 600; }
.dk-diff-same i { margin-right: 8px; }

.dk-mock-fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
.dk-mock-field { display: inline-flex; align-items: center; gap: 7px; font-size: .88rem; color: var(--text-soft); padding: 7px 11px; border-radius: 9px; background: var(--surface-2); border: 1px solid var(--border); cursor: pointer; }
.dk-mock-field:hover { border-color: var(--accent); }

.dk-luhn-result { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.dk-luhn-ok, .dk-luhn-bad { padding: 14px 16px; border-radius: 12px; font-weight: 600; }
.dk-luhn-ok { background: color-mix(in srgb, #2fd8a0 14%, transparent); color: #2fd8a0; }
.dk-luhn-bad { background: color-mix(in srgb, #ff5d73 14%, transparent); color: #ff5d73; }
.dk-luhn-ok i, .dk-luhn-bad i { margin-right: 8px; }
.dk-luhn-type { color: var(--text-soft); font-size: .92rem; }

/* ---- v10 widgets: color input, palette, unicode ---- */
.dk-color-input { width: 52px; height: 38px; padding: 2px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); cursor: pointer; }
.dk-pal-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); gap: 8px; margin-top: 16px; }
.dk-pal-swatch { height: 72px; border-radius: 12px; border: 1px solid var(--border); cursor: pointer; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 7px; transition: transform .15s ease; position: relative; }
.dk-pal-swatch:hover { transform: translateY(-3px); }
.dk-pal-swatch span { font-family: 'JetBrains Mono'; font-size: .72rem; font-weight: 600; background: rgba(0,0,0,.55); color: #fff; padding: 2px 6px; border-radius: 6px; }
.dk-uni-out { display: flex; flex-direction: column; gap: 8px; }

/* ============ GUIDES v11 — MODERN DESIGN ============ */
.dk-reading-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 100; background: linear-gradient(90deg, var(--primary), var(--primary-2)); transition: width .1s linear; }

/* listing */
.dk-guides-hero { text-align: center; max-width: 760px; margin: 8px auto 40px; }
.dk-guides-hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 15px; border-radius: 999px; font-size: .82rem; font-weight: 600; color: var(--accent); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent); margin-bottom: 18px; }
.dk-guides-hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin: 0 0 16px; letter-spacing: -.02em; line-height: 1.1; }
.dk-guides-hero p { color: var(--text-soft); font-size: 1.08rem; line-height: 1.7; margin: 0 auto; max-width: 60ch; }
.dk-guides-filter { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.dk-chip { display: inline-flex; align-items: center; gap: 7px; padding: 8px 16px; border-radius: 999px; cursor: pointer; font-size: .9rem; font-weight: 500; color: var(--text-soft); background: var(--surface); border: 1px solid var(--border); transition: .18s ease; }
.dk-chip:hover { border-color: var(--accent); color: var(--text); }
.dk-chip.is-active { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); border-color: transparent; }
.dk-chip span { font-size: .76rem; opacity: .7; font-family: 'JetBrains Mono'; }
.dk-chip.is-active span { opacity: .85; }
.dk-guides-empty { text-align: center; color: var(--text-mute); padding: 40px 0; }

.dk-guide-grid--modern { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.dk-guide-card--modern { padding: 0; overflow: hidden; }
.dk-guide-card-art { aspect-ratio: 7 / 3; overflow: hidden; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.dk-guide-card-art svg { width: 100%; height: 100%; display: block; }
.dk-guide-card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 9px; }
.dk-guide-card--modern h2 { font-size: 1.16rem; line-height: 1.3; margin: 0; }

/* article layout with TOC */
.dk-guide-wrap { padding-top: 28px; }
.dk-guide-head--modern { max-width: 820px; margin: 0 auto 28px; text-align: center; }
.dk-guide-head--modern h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin: 14px 0; line-height: 1.12; }
.dk-guide-standfirst { font-size: 1.18rem; color: var(--text-soft); line-height: 1.6; margin: 0 0 22px; }
.dk-guide-meta--byline { justify-content: center; align-items: center; }
.dk-guide-byline { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; color: var(--text); }
.dk-guide-avatar { width: 30px; height: 30px; border-radius: 999px; display: grid; place-items: center; color: #fff; font-size: .8rem; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.dk-guide-hero--modern { max-width: 900px; margin: 0 auto 12px; border-radius: 22px; }
.dk-guide-layout { display: grid; grid-template-columns: 1fr; gap: 40px; max-width: 760px; margin: 0 auto; }
@media (min-width: 1080px) {
  .dk-guide-layout { grid-template-columns: 240px minmax(0, 1fr); max-width: 1040px; gap: 56px; align-items: start; }
  .dk-guide-toc { position: sticky; top: 90px; }
}
.dk-guide-toc-inner { border-left: 2px solid var(--border); padding-left: 18px; display: flex; flex-direction: column; gap: 4px; }
.dk-guide-toc-title { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-mute); font-family: 'JetBrains Mono'; margin-bottom: 8px; }
.dk-guide-toc nav { display: flex; flex-direction: column; gap: 2px; }
.dk-guide-toc nav a { font-size: .88rem; color: var(--text-mute); padding: 5px 0; transition: color .15s ease; border-left: 2px solid transparent; margin-left: -20px; padding-left: 18px; }
.dk-guide-toc nav a:hover { color: var(--text); }
.dk-guide-toc nav a.is-active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
.dk-guide-toc-tool { display: flex; align-items: center; gap: 9px; margin-top: 18px; padding: 11px 13px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); font-size: .88rem; font-weight: 600; }
.dk-guide-toc-tool:hover { filter: brightness(1.05); }
@media (max-width: 1079px) { .dk-guide-toc { display: none; } }

/* article body typography */
.dk-guide-body--modern { font-size: 1.08rem; line-height: 1.8; }
.dk-guide-body--modern h2 { font-size: 1.6rem; margin: 2.2em 0 .7em; scroll-margin-top: 90px; }
.dk-guide-body--modern h3 { font-size: 1.2rem; margin: 1.6em 0 .5em; }
.dk-guide-body--modern p { margin: 0 0 1.2em; color: var(--text-soft); }
.dk-guide-lead { font-size: 1.25rem !important; line-height: 1.65; color: var(--text) !important; font-weight: 450; }
.dk-guide-lead::first-letter { font-size: 3.1rem; font-weight: 800; float: left; line-height: .8; padding: 6px 12px 0 0; color: var(--accent); font-family: 'Sora'; }
.dk-guide-list, .dk-guide-olist { margin: 0 0 1.4em; padding-left: 1.4em; display: flex; flex-direction: column; gap: .55em; color: var(--text-soft); }
.dk-guide-list li::marker { color: var(--accent); }
.dk-guide-olist li::marker { color: var(--accent); font-weight: 700; }

/* callouts */
.dk-callout { display: flex; gap: 14px; padding: 16px 18px; border-radius: 14px; margin: 1.6em 0; border: 1px solid var(--border); background: var(--surface); }
.dk-callout i { font-size: 1.1rem; margin-top: 2px; }
.dk-callout div { display: flex; flex-direction: column; gap: 3px; }
.dk-callout strong { color: var(--text); }
.dk-callout span { color: var(--text-soft); font-size: .98rem; line-height: 1.6; }
.dk-callout--info { border-color: color-mix(in srgb, #5dd6ff 35%, transparent); background: color-mix(in srgb, #5dd6ff 8%, var(--surface)); }
.dk-callout--info i { color: #1fb6ff; }
.dk-callout--tip { border-color: color-mix(in srgb, #2fd8a0 35%, transparent); background: color-mix(in srgb, #2fd8a0 8%, var(--surface)); }
.dk-callout--tip i { color: #2fd8a0; }
.dk-callout--warning { border-color: color-mix(in srgb, #ff7a18 38%, transparent); background: color-mix(in srgb, #ff7a18 9%, var(--surface)); }
.dk-callout--warning i { color: #ff7a18; }

/* code blocks */
.dk-code-block { position: relative; margin: 1.6em 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--border-strong); background: #0a0f1c; }
.dk-code-lang { position: absolute; top: 10px; right: 14px; font-size: .72rem; font-family: 'JetBrains Mono'; color: #6b7a98; text-transform: uppercase; letter-spacing: .05em; }
.dk-code-block pre { margin: 0; padding: 18px 20px; overflow-x: auto; }
.dk-code-block code { font-family: 'JetBrains Mono'; font-size: .86rem; line-height: 1.65; color: #c8d3e8; white-space: pre; }

/* key takeaways */
.dk-takeaways { margin: 1.8em 0; padding: 22px 24px; border-radius: 16px; background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 9%, var(--surface)), var(--surface)); border: 1px solid color-mix(in srgb, var(--primary) 26%, transparent); }
.dk-takeaways-title { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.dk-takeaways-title i { color: var(--accent); }
.dk-takeaways ul { margin: 0; padding-left: 1.3em; display: flex; flex-direction: column; gap: .5em; }
.dk-takeaways li { color: var(--text-soft); }
.dk-takeaways li::marker { color: var(--accent); }

/* FAQ */
.dk-guide-faq { margin-top: 2.4em; }
.dk-faq-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 10px; background: var(--surface); overflow: hidden; }
.dk-faq-item summary { cursor: pointer; padding: 16px 18px; font-weight: 600; color: var(--text); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.dk-faq-item summary::-webkit-details-marker { display: none; }
.dk-faq-item summary::after { content: '+'; font-size: 1.3rem; color: var(--accent); flex: none; }
.dk-faq-item[open] summary::after { content: '−'; }
.dk-faq-item p { margin: 0; padding: 0 18px 18px; color: var(--text-soft); line-height: 1.7; }

.dk-feature-list { list-style: none; padding: 0; margin: 18px 0 8px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; }
.dk-feature-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--text-soft); line-height: 1.6; }
.dk-feature-list li i { color: var(--accent); margin-top: 4px; flex: none; font-size: .82rem; }
@media (max-width: 640px) { .dk-feature-list { grid-template-columns: 1fr; } }

.dk-guide-readnext { margin-top: 56px; }

/* ============ v12: DROPZONE ============ */
.dk-dropzone { display: block; cursor: pointer; border: 2px dashed var(--border-strong); border-radius: 16px; background: var(--surface-2); transition: border-color .18s ease, background .18s ease, transform .18s ease; }
.dk-dropzone:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 5%, var(--surface-2)); }
.dk-dropzone.is-dragover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, var(--surface-2)); transform: scale(1.01); }
.dk-dropzone-inner { display: flex; flex-direction: column; align-items: center; gap: 7px; padding: 38px 24px; text-align: center; pointer-events: none; }
.dk-dropzone-icon { font-size: 2rem; color: var(--accent); margin-bottom: 4px; }
.dk-dropzone-title { font-size: 1.05rem; color: var(--text); }
.dk-dropzone-hint { font-size: .86rem; color: var(--text-mute); }
.dk-dropzone-browse { color: var(--accent); font-weight: 600; text-decoration: underline; }
.dk-dropzone-file { margin-top: 8px; font-family: 'JetBrains Mono'; font-size: .82rem; color: var(--text-soft); background: var(--surface); padding: 5px 12px; border-radius: 999px; border: 1px solid var(--border); }

/* ============ v12: CHEATSHEETS ============ */
.dk-cheat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.dk-cheat-card { display: flex; align-items: center; gap: 16px; padding: 22px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; }
.dk-cheat-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.dk-cheat-card-icon { flex: none; width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 1.5rem; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.dk-cheat-card-body { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.dk-cheat-card-body h2, .dk-cheat-card-body h3 { font-size: 1.15rem; margin: 2px 0; }
.dk-cheat-card-body p { color: var(--text-soft); font-size: .9rem; margin: 0; line-height: 1.5; }
.dk-cheat-card-count { font-size: .76rem; color: var(--text-mute); font-family: 'JetBrains Mono'; margin-top: 4px; }
.dk-cheat-card-arrow { flex: none; color: var(--text-mute); transition: transform .18s ease, color .18s ease; }
.dk-cheat-card:hover .dk-cheat-card-arrow { color: var(--accent); transform: translateX(4px); }

.dk-cheat-title-icon { display: inline-grid; place-items: center; width: 1.1em; color: var(--accent); margin-right: 6px; }
.dk-cheat-body { min-width: 0; }
.dk-cheat-section { margin-bottom: 34px; scroll-margin-top: 90px; }
.dk-cheat-section h2 { font-size: 1.3rem; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.dk-cheat-rows { display: flex; flex-direction: column; gap: 8px; }
.dk-cheat-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 14px; align-items: center; padding: 4px 0; }
@media (max-width: 640px) { .dk-cheat-row { grid-template-columns: 1fr; gap: 4px; } }
.dk-cheat-code { display: flex; align-items: center; justify-content: space-between; gap: 10px; text-align: left; width: 100%; padding: 9px 13px; border-radius: 10px; background: var(--code-bg); border: 1px solid var(--border); cursor: pointer; transition: border-color .15s ease, background .15s ease; }
.dk-cheat-code:hover { border-color: var(--accent); }
.dk-cheat-code code { font-family: 'JetBrains Mono'; font-size: .85rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dk-cheat-code i { color: var(--text-mute); font-size: .8rem; flex: none; transition: color .15s ease; }
.dk-cheat-code:hover i { color: var(--accent); }
.dk-cheat-code.is-copied { border-color: var(--success); }
.dk-cheat-code.is-copied i::before { content: "\f00c"; color: var(--success); }
.dk-cheat-desc { color: var(--text-soft); font-size: .92rem; line-height: 1.5; }

/* ============ v12: STYLED 404 ============ */
.dk-404 { max-width: 620px; margin: 40px auto; text-align: center; }
.dk-404-art { max-width: 320px; margin: 0 auto 8px; }
.dk-404-art svg { width: 100%; height: auto; }
.dk-404 h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 14px; }
.dk-404 > p { color: var(--text-soft); font-size: 1.08rem; line-height: 1.65; margin: 0 auto 28px; max-width: 480px; }
.dk-404-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 40px; }
.dk-404-popular { border-top: 1px solid var(--border); padding-top: 28px; }
.dk-404-popular-label { display: block; font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-mute); font-family: 'JetBrains Mono'; margin-bottom: 14px; }
.dk-404-tools { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.dk-404-tool { display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--text-soft); font-size: .88rem; font-weight: 500; transition: .16s ease; }
.dk-404-tool:hover { border-color: var(--accent); color: var(--text); transform: translateY(-2px); }
.dk-404-tool i { color: var(--accent); }

/* ============ v15: PRIVACY + CONTACT ============ */
.dk-privacy-highlight { display: flex; gap: 16px; align-items: center; max-width: 1040px; margin: 0 auto 8px; padding: 18px 22px; border-radius: 16px; background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 10%, var(--surface)), var(--surface)); border: 1px solid color-mix(in srgb, var(--primary) 28%, transparent); }
.dk-privacy-highlight i { font-size: 1.4rem; color: var(--accent); flex: none; }
.dk-privacy-highlight div { color: var(--text-soft); line-height: 1.55; }
.dk-privacy-highlight strong { color: var(--text); }

/* contact */
.dk-contact-hero { text-align: center; max-width: 680px; margin: 8px auto 36px; }
.dk-contact-hero h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 16px 0 14px; }
.dk-contact-hero p { color: var(--text-soft); font-size: 1.08rem; line-height: 1.7; margin: 0; }
.dk-contact-layout { display: grid; grid-template-columns: 1fr; gap: 28px; max-width: 1040px; margin: 0 auto; }
@media (min-width: 940px) { .dk-contact-layout { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); align-items: start; } }
.dk-contact-form-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 28px; }
@media (max-width: 520px) { .dk-contact-form-wrap { padding: 20px; } }
.dk-contact-privacy-note { display: inline-flex; align-items: center; gap: 7px; font-size: .82rem; color: var(--text-mute); }
.dk-contact-privacy-note i { color: var(--accent); }
.dk-contact-side { display: flex; flex-direction: column; gap: 16px; }
.dk-contact-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.dk-contact-card h2 { font-size: 1.1rem; margin: 0 0 14px; }
.dk-contact-card p { color: var(--text-soft); font-size: .92rem; line-height: 1.6; margin: 0 0 12px; }
.dk-contact-card--muted { background: var(--surface-2); }
.dk-contact-card--muted p { margin: 0; font-size: .86rem; }
.dk-contact-card--muted i { color: var(--accent); margin-right: 4px; }
.dk-contact-card--muted a { color: var(--accent); }
.dk-contact-reasons { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.dk-contact-reasons li { display: flex; gap: 13px; align-items: flex-start; }
.dk-contact-reason-icon { flex: none; width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; color: #fff; font-size: .95rem; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.dk-contact-reason-text { display: flex; flex-direction: column; gap: 2px; }
.dk-contact-reason-text strong { font-size: .95rem; }
.dk-contact-reason-text span { color: var(--text-soft); font-size: .86rem; line-height: 1.5; }
.dk-contact-email { display: inline-flex; align-items: center; gap: 9px; padding: 11px 16px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); font-weight: 600; font-family: 'JetBrains Mono'; font-size: .9rem; }
.dk-contact-email:hover { filter: brightness(1.05); }

/* ============ v16: UI SNIPPETS ============ */
/* gallery */
.dk-snippet-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.dk-snippet-card { display: flex; flex-direction: column; border-radius: 16px; overflow: hidden; background: var(--surface); border: 1px solid var(--border); transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; }
.dk-snippet-card[hidden] { display: none; }
.dk-snippet-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.dk-snippet-preview { position: relative; height: 200px; background: #f6f7fa; border-bottom: 1px solid var(--border); overflow: hidden; }
.dk-snippet-preview iframe { width: 100%; height: 100%; border: 0; display: block; pointer-events: none; }
.dk-snippet-preview-veil { position: absolute; inset: 0; cursor: pointer; }
.dk-snippet-card-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 7px; }
.dk-snippet-card-body h2 { font-size: 1.12rem; margin: 0; }
.dk-snippet-card-body p { color: var(--text-soft); font-size: .9rem; margin: 0; line-height: 1.5; }

/* detail stage */
.dk-snippet-stage { max-width: 980px; margin: 0 auto; border: 1px solid var(--border-strong); border-radius: 18px; overflow: hidden; background: var(--surface); }
.dk-snippet-tabbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 12px 14px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.dk-snippet-tabs { display: inline-flex; background: var(--surface-3); border-radius: 11px; padding: 3px; gap: 2px; }
.dk-snippet-tab { border: 0; background: transparent; color: var(--text-soft); font-weight: 600; font-size: .86rem; padding: 8px 16px; border-radius: 8px; cursor: pointer; font-family: 'JetBrains Mono'; transition: .15s ease; }
.dk-snippet-tab:hover { color: var(--text); }
.dk-snippet-tab.is-active { background: var(--surface); color: var(--accent); box-shadow: var(--shadow-sm); }
.dk-snippet-tools { display: inline-flex; gap: 8px; }
.dk-snippet-panes { position: relative; }
.dk-snippet-pane { display: none; }
.dk-snippet-pane.is-active { display: block; }
.dk-snippet-frame { width: 100%; height: 420px; border: 0; display: block; background: #f6f7fa; }
.dk-snippet-code { margin: 0; padding: 20px 22px; max-height: 420px; overflow: auto; background: #0a0f1c; }
.dk-snippet-code code { font-family: 'JetBrains Mono'; font-size: .85rem; line-height: 1.6; color: #c8d3e8; white-space: pre; }
@media (max-width: 560px) {
  .dk-snippet-tabbar { justify-content: center; }
  .dk-snippet-frame, .dk-snippet-code { height: 320px; max-height: 320px; }
}

/* snippet level badge */
.dk-snippet-card-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.dk-snippet-level { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: 3px 8px; border-radius: 999px; font-family: 'JetBrains Mono'; }
.dk-snippet-level--advanced { color: #ff477e; background: color-mix(in srgb, #ff477e 14%, transparent); }
.dk-snippet-level--intermediate { color: #5b6cff; background: color-mix(in srgb, #5b6cff 14%, transparent); }
.dk-snippet-level--beginner { color: #16a34a; background: color-mix(in srgb, #16a34a 14%, transparent); }

/* ============ v20: snippets framework badge, load more, bootstrap note ============ */
.dk-snippet-fw { position: absolute; top: 10px; right: 10px; display: inline-flex; align-items: center; gap: 5px; font-size: .7rem; font-weight: 700; padding: 4px 9px; border-radius: 999px; background: rgba(112,44,249,.92); color: #fff; font-family: system-ui, sans-serif; box-shadow: 0 2px 8px rgba(0,0,0,.2); }
.dk-snippet-fw i { font-size: .85rem; }
.dk-snip-more-wrap { text-align: center; margin-top: 32px; }
.dk-snip-more { padding: 13px 30px; font-size: .95rem; }
.dk-snip-more span { opacity: .8; font-weight: 500; margin-left: 4px; }

.dk-boot-note { max-width: 900px; margin: 0 auto 20px; padding: 18px 20px; border-radius: 14px; background: color-mix(in srgb, #7c3aed 8%, var(--surface)); border: 1px solid color-mix(in srgb, #7c3aed 28%, transparent); }
.dk-boot-note-head { color: var(--text-soft); font-size: .92rem; line-height: 1.55; margin-bottom: 12px; }
.dk-boot-note-head i { color: #7c3aed; }
.dk-boot-note-head code { background: var(--surface-3); padding: 1px 6px; border-radius: 5px; font-size: .85em; }
.dk-boot-cdn { display: flex; align-items: center; gap: 8px; background: #0a0f1c; border-radius: 9px; padding: 9px 12px; margin-top: 8px; }
.dk-boot-cdn code { flex: 1; color: #c8d3e8; font-family: 'JetBrains Mono', monospace; font-size: .8rem; overflow-x: auto; white-space: nowrap; }
.dk-boot-copy { flex: none; border: 0; background: #1a2540; color: #9fb0d0; width: 30px; height: 30px; border-radius: 7px; cursor: pointer; transition: .15s; }
.dk-boot-copy:hover { background: #24345a; color: #fff; }

/* ===== Templates section (full-page designs) ===== */
.dk-tpl-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 22px; }
@media (max-width: 860px) { .dk-tpl-grid { grid-template-columns: minmax(0, 1fr); } }
.dk-tpl-card { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; text-decoration: none; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; min-width: 0; }
.dk-tpl-card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.dk-tpl-card[hidden] { display: none; }
/* Preview: a fixed-width (1280px) design viewport scaled down to fit the card.
   The .dk-tpl-preview is the visible window. The inner frame is scaled with a
   transform; the scale factor is set per breakpoint so the FULL width of the
   1280px design always fits the card (no right-edge cutoff). Card widths:
   ~553px (2-col desktop) -> 0.432; tablet/mobile handled below. */
.dk-tpl-preview { position: relative; width: 100%; height: 230px; overflow: hidden; background: #f4f6fb; }
.dk-tpl-frame-scale { position: absolute; top: 0; left: 0; width: 1280px; height: 800px; transform: scale(0.432); transform-origin: top left; pointer-events: none; }
.dk-tpl-frame-scale iframe { width: 1280px; height: 800px; border: 0; display: block; background: #fff; }
/* Keep the scaled width == card width across breakpoints so nothing is clipped */
@media (max-width: 1240px) { .dk-tpl-frame-scale { transform: scale(0.40); } }
@media (max-width: 1100px) { .dk-tpl-frame-scale { transform: scale(0.355); } }
@media (max-width: 860px)  { .dk-tpl-preview { height: 300px; } .dk-tpl-frame-scale { transform: scale(0.60); } }
@media (max-width: 740px)  { .dk-tpl-frame-scale { transform: scale(0.52); } }
@media (max-width: 620px)  { .dk-tpl-frame-scale { transform: scale(0.44); } }
@media (max-width: 520px)  { .dk-tpl-preview { height: 240px; } .dk-tpl-frame-scale { transform: scale(0.36); } }
@media (max-width: 420px)  { .dk-tpl-frame-scale { transform: scale(0.30); } }
.dk-tpl-preview-veil { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(8,12,24,.55)); pointer-events: none; }
.dk-tpl-lib { position: absolute; top: 10px; right: 10px; background: rgba(10,16,30,.78); color: #cdd9f2; font-size: .68rem; font-weight: 600; padding: 4px 9px; border-radius: 999px; border: 1px solid #2c3e66; backdrop-filter: blur(4px); z-index: 2; }
.dk-tpl-lib i { margin-right: 4px; color: #7ea2ff; }
.dk-tpl-card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.dk-tpl-card-body .dk-snippet-card-meta { gap: 7px; }
.dk-tpl-card-body .dk-guide-cat { font-size: .64rem; padding: 3px 8px; border-radius: 999px; color: var(--text-soft); background: var(--surface-3); letter-spacing: .05em; }
.dk-tpl-card-body h2 { font-size: 1.02rem; color: #eef2fb; margin: 2px 0 0; }
.dk-tpl-card-body p { font-size: .84rem; color: #9fb0d0; margin: 0; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.dk-template-stage .dk-template-frame { width: 100%; height: 680px; border: 0; border-radius: 0 0 14px 14px; background: #fff; }
@media (max-width: 760px) { .dk-template-stage .dk-template-frame { height: 520px; } }

/* ===== Template preview device toggle ===== */
.dk-device-toggle { display: inline-flex; gap: 2px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 9px; padding: 3px; margin-right: 6px; }
.dk-device-toggle button { border: 0; background: transparent; color: #9fb0d0; width: 30px; height: 26px; border-radius: 7px; cursor: pointer; font-size: .8rem; transition: .15s; }
.dk-device-toggle button:hover { color: #fff; }
.dk-device-toggle button.is-active { background: #24345a; color: #fff; }
@media (max-width: 640px) { .dk-device-toggle { display: none; } }
.dk-device-stage { display: flex; justify-content: center; border-radius: 0 0 14px 14px; overflow: hidden; }
.dk-device-stage .dk-template-frame { transition: width .25s ease; border-radius: 0; }
.dk-device-stage.is-framed { padding: 18px 0; background-image: linear-gradient(rgba(10,16,30,.25), rgba(10,16,30,.25)); }
.dk-device-stage.is-framed .dk-template-frame { border-radius: 14px; box-shadow: 0 16px 44px rgba(0,0,0,.35); }

/* ============================================================
   ConvertAtlas Academy
   ============================================================ */
.ac-badge{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);color:var(--accent);border:1px solid var(--border-strong);border-radius:999px;padding:7px 16px;font-size:.82rem;font-weight:600;margin-bottom:18px}
.ac-badge i{font-size:.85rem}
/* Hero (index + course) */
.ac-hero,.ac-chero{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:30px 0 20px}
.ac-hero h1,.ac-chero h1{font-size:clamp(2.1rem,4.5vw,3.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.06;margin:0 0 14px;color:var(--text)}
.ac-hero p,.ac-chero-desc{color:var(--text-soft);font-size:1.05rem;line-height:1.7;max-width:560px;margin:0 0 22px}
.ac-chero-sub{font-size:1.2rem;color:var(--text);font-weight:600;margin:0 0 12px}
.ac-hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.ac-hero-art,.ac-chero-art{border-radius:18px;overflow:hidden;border:1px solid var(--border);background:var(--surface);min-height:230px;display:flex}
.ac-cprogress{margin-top:22px;max-width:360px}
.ac-cprogress-bar{height:8px;background:var(--surface-3);border-radius:5px;overflow:hidden;margin-bottom:6px}
.ac-cprogress-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ac,#7c5cff),color-mix(in srgb,var(--ac,#22d3ee) 70%,#fff));border-radius:5px;transition:width .6s var(--ease)}
.ac-cprogress span{font-size:.82rem;color:var(--text-soft)}
/* Intro strip */
.ac-intro{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:30px 0}
.ac-intro-item{display:flex;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s ease}
.ac-intro-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.ac-intro-item i{color:#34d399;font-size:1.1rem;margin-top:3px}
.ac-intro-item b{display:block;color:var(--text);margin-bottom:4px}
.ac-intro-item p{color:var(--text-soft);font-size:.9rem;margin:0;line-height:1.55}
/* Course cards */
.ac-courses{margin:40px 0}
.ac-course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ac-course-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:24px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s ease;position:relative;overflow:hidden}
.ac-course-card::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--ac,#7c5cff);opacity:.8}
.ac-course-card--active{cursor:pointer}
.ac-course-card--active:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--ac)}
.ac-course-card--soon{opacity:.72}
.ac-course-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.ac-course-icon{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;font-size:1.35rem;color:#fff;background:linear-gradient(135deg,var(--ac,#7c5cff),color-mix(in srgb,var(--ac,#7c5cff) 60%,#000));box-shadow:0 6px 18px color-mix(in srgb,var(--ac,#7c5cff) 35%,transparent);transition:transform .25s var(--ease)}
.ac-course-card--active:hover .ac-course-icon{transform:scale(1.06) rotate(-3deg)}
.ac-course-card h3{font-size:1.2rem;font-weight:700;color:var(--text);margin:0 0 8px}
.ac-course-card p{color:var(--text-soft);font-size:.92rem;line-height:1.6;margin:0 0 18px;flex:1}
.ac-course-foot{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--text-mute)}
.ac-course-go{color:var(--ac,#7c5cff);font-weight:700}
.ac-status{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:4px 11px;border-radius:999px}
.ac-status--available{background:rgba(52,211,153,.15);color:#34d399}
.ac-status--soon{background:var(--surface-3);color:var(--text-mute)}
/* Why / generic grids */
.ac-why,.ac-audience,.ac-outcomes,.ac-curriculum,.ac-approach,.ac-project,.ac-faq,.ac-stats{margin:44px 0}
.ac-why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ac-why-item{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;text-align:center;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s ease}
.ac-why-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.ac-why-item:hover .ac-why-icon{transform:scale(1.08)}
.ac-why-icon{width:50px;height:50px;border-radius:13px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:1.3rem;margin:0 auto 14px;transition:transform .25s var(--ease)}
.ac-why-item h3{font-size:1.05rem;margin:0 0 6px;color:var(--text)}
.ac-why-item p{color:var(--text-soft);font-size:.88rem;margin:0;line-height:1.55}
.ac-cta{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:50px 30px;margin:44px 0}
.ac-cta h2{font-size:clamp(1.6rem,3.5vw,2.3rem);font-weight:800;letter-spacing:-.02em;margin:0 0 10px;color:var(--text)}
.ac-cta p{color:var(--text-soft);margin:0 auto 24px;max-width:46ch}
/* Course landing specifics */
.ac-stats{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.ac-stat{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px 10px}
.ac-stat b{display:block;font-size:1.5rem;font-weight:800;color:var(--text)}
.ac-stat span{font-size:.78rem;color:var(--text-mute)}
.ac-aud-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.ac-aud{display:flex;flex-direction:column;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px 8px;text-align:center}
.ac-aud i{font-size:1.4rem;color:var(--accent)}
.ac-aud span{font-size:.8rem;color:var(--text-soft);line-height:1.3}
.ac-outcome-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 26px}
.ac-outcome-list li{display:flex;align-items:flex-start;gap:10px;color:var(--text-soft);line-height:1.55}
.ac-outcome-list li i{color:#34d399;margin-top:4px;font-size:.82rem;flex:none}
/* Curriculum */
.ac-module{margin-bottom:26px}
.ac-module-title{display:flex;align-items:center;gap:12px;font-size:1.15rem;color:var(--text);margin:0 0 14px}
.ac-module-num{width:30px;height:30px;border-radius:9px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:.9rem;font-weight:800}
.ac-lesson-list{display:flex;flex-direction:column;gap:8px}
.ac-lesson-row{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:14px 18px;transition:.18s}
.ac-lesson-row--active:hover{border-color:var(--accent);transform:translateX(4px)}
.ac-lesson-row--soon{opacity:.6}
.ac-lesson-n{width:30px;height:30px;border-radius:8px;background:var(--surface-3);color:var(--text-soft);display:grid;place-items:center;font-weight:700;font-size:.85rem;flex:none}
.ac-lesson-info{flex:1;min-width:0}
.ac-lesson-info b{display:block;color:var(--text);font-size:.98rem}
.ac-lesson-info em{color:var(--text-soft);font-style:normal;font-size:.85rem;display:block;margin-top:2px}
.ac-lesson-outcome{display:block;color:var(--text-mute);font-size:.78rem;margin-top:5px}
.ac-lesson-meta{display:flex;align-items:center;gap:10px;flex:none}
.ac-lesson-check{color:#34d399}
/* Approach */
.ac-approach-grid{display:flex;flex-wrap:wrap;gap:12px}
.ac-approach-item{display:flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:10px 18px;color:var(--text-soft);font-size:.9rem}
.ac-approach-item i{color:var(--accent)}
/* Project */
.ac-project-card{background:linear-gradient(135deg,rgba(124,92,255,.12),rgba(34,211,238,.08));border:1px solid var(--border-strong);border-radius:20px;padding:36px}
.ac-project-tag{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:6px 15px;font-size:.8rem;font-weight:700;color:var(--accent);margin-bottom:14px}
.ac-project-card h2{font-size:1.6rem;margin:0 0 10px;color:var(--text)}
.ac-project-card p{color:var(--text-soft);margin:0 0 18px;max-width:60ch}
.ac-project-steps{margin:0;padding-left:20px;color:var(--text-soft);line-height:1.7}
/* ============ Lesson page ============ */
.ac-lesson-grid{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start}
.ac-sidebar{position:sticky;top:84px;max-height:calc(100vh - 100px);overflow-y:auto}
.ac-sidebar-toggle{display:none;width:100%;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:13px 16px;color:var(--text);font-weight:600;cursor:pointer;font-size:.95rem}
.ac-toggle-caret{margin-left:auto;transition:transform .2s}
.ac-sidebar-toggle[aria-expanded="true"] .ac-toggle-caret{transform:rotate(180deg)}
.ac-sidebar-course{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);padding:0 0 14px;border-bottom:1px solid var(--border);margin-bottom:14px}
.ac-sidebar-course i{color:var(--accent)}
.ac-sidebar-progress{margin-bottom:18px}
.ac-sidebar-progress span{font-size:.78rem;color:var(--text-soft)}
.ac-sb-module{font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-mute);font-weight:700;margin:16px 0 8px}
.ac-sb-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
.ac-sb-link{display:flex;align-items:center;gap:9px;padding:9px 11px;border-radius:9px;color:var(--text-soft);font-size:.88rem;transition:background-color .15s ease,color .15s ease,transform .15s var(--ease);position:relative}
.ac-sb-link:hover{background:var(--surface-2);color:var(--text);transform:translateX(2px)}
.ac-sb-link.is-current{background:var(--accent-soft);color:var(--accent);font-weight:600}
.ac-sb-link.is-current::before{content:'';position:absolute;left:-1px;top:18%;bottom:18%;width:3px;border-radius:3px;background:var(--accent)}
.ac-sb-link.is-done .ac-sb-num{background:rgba(52,211,153,.2);color:#34d399}
.ac-sb-link--soon{opacity:.5;cursor:default}
.ac-sb-link--soon:hover{background:none;color:var(--text-soft);transform:none}
.ac-sb-num{width:22px;height:22px;border-radius:6px;background:var(--surface-3);display:grid;place-items:center;font-size:.74rem;font-weight:700;flex:none;transition:background-color .15s ease,color .15s ease}
.ac-sb-link.is-current .ac-sb-num{background:var(--accent);color:#06121f}
.ac-sb-title{flex:1;line-height:1.3}
.ac-sb-soon{font-size:.66rem;text-transform:uppercase;color:var(--text-mute)}
.ac-sb-check{color:#34d399;flex:none}
.ac-lesson-main{min-width:0}
.ac-lesson-head{margin:14px 0 26px}
.ac-lesson-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.ac-chip{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:.78rem;color:var(--text-soft)}
.ac-chip--status{background:rgba(52,211,153,.15);color:#34d399;border-color:transparent}
.ac-lesson-head h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.08;margin:0 0 12px;color:var(--text)}
.ac-lesson-sub{font-size:1.1rem;color:var(--text-soft);line-height:1.6;margin:0}
/* Lesson body blocks */
.ac-lesson-body{font-size:1.02rem;line-height:1.75;color:var(--text-soft)}
.ac-lesson-body h2{font-size:1.5rem;font-weight:700;color:var(--text);margin:36px 0 14px;letter-spacing:-.02em;scroll-margin-top:90px}
.ac-lesson-body h3{font-size:1.2rem;font-weight:700;color:var(--text);margin:26px 0 10px}
.ac-lesson-body p{margin:0 0 16px}
.ac-lead{font-size:1.15rem;line-height:1.7;color:var(--text);margin:0 0 22px !important}
.ac-ul,.ac-ol{margin:0 0 18px;padding-left:22px}
.ac-ul li,.ac-ol li{margin-bottom:8px}
.ac-callout{display:flex;gap:14px;border-radius:14px;padding:18px 20px;margin:22px 0;border:1px solid var(--border)}
.ac-callout i{font-size:1.1rem;margin-top:2px;flex:none}
.ac-callout strong{display:block;color:var(--text);margin-bottom:3px}
.ac-callout span{color:var(--text-soft);font-size:.95rem}
.ac-callout--info{background:rgba(93,214,255,.08);border-color:rgba(93,214,255,.3)}.ac-callout--info i{color:#5dd6ff}
.ac-callout--tip{background:rgba(52,211,153,.08);border-color:rgba(52,211,153,.3)}.ac-callout--tip i{color:#34d399}
.ac-callout--warning{background:rgba(251,191,36,.09);border-color:rgba(251,191,36,.35)}.ac-callout--warning i{color:#fbbf24}
.ac-fig{margin:24px 0;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px}
.ac-fig figcaption{text-align:center;color:var(--text-mute);font-size:.85rem;margin-top:12px}
.ac-table-wrap{overflow-x:auto;margin:22px 0}
.ac-table{width:100%;border-collapse:collapse;font-size:.92rem;background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.ac-table th{background:var(--surface-2);color:var(--text);text-align:left;padding:11px 15px;font-weight:700;border-bottom:1px solid var(--border)}
.ac-table td{padding:11px 15px;border-bottom:1px solid var(--border);color:var(--text-soft)}
.ac-table tr:last-child td{border-bottom:0}
.ac-code,.ac-prompt{background:var(--bg-2);border:1px solid var(--border);border-radius:13px;overflow:hidden;margin:22px 0}
.ac-code-bar,.ac-prompt-bar{display:flex;justify-content:space-between;align-items:center;padding:9px 14px;background:var(--surface-2);border-bottom:1px solid var(--border);font-size:.8rem;color:var(--text-mute)}
.ac-prompt-bar span{color:var(--accent);font-weight:600}
.ac-copy{background:var(--surface-3);border:1px solid var(--border);color:var(--text-soft);border-radius:7px;padding:5px 11px;font-size:.78rem;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:.15s}
.ac-copy:hover{color:var(--text);border-color:var(--border-strong)}
.ac-copy.is-copied{color:#34d399;border-color:#34d399}
.ac-code pre,.ac-prompt pre{margin:0;padding:16px;overflow-x:auto;font-family:ui-monospace,'JetBrains Mono',monospace;font-size:.88rem;line-height:1.6;color:var(--text);white-space:pre-wrap;word-break:break-word}
.ac-tryit{background:rgba(124,92,255,.08);border:1px solid rgba(124,92,255,.3);border-radius:14px;padding:20px 22px;margin:24px 0}
.ac-tryit-head{display:flex;align-items:center;gap:9px;font-weight:700;color:#a78bfa;margin-bottom:8px}
.ac-tryit p{margin:0;color:var(--text-soft)}
.ac-def{background:var(--surface);border-left:3px solid var(--accent);border-radius:0 12px 12px 0;padding:16px 20px;margin:22px 0}
.ac-def-term{display:block;font-weight:700;color:var(--text);margin-bottom:4px}
.ac-def-text{color:var(--text-soft);font-size:.95rem}
.ac-steps{list-style:none;counter-reset:none;padding:0;margin:22px 0;display:flex;flex-direction:column;gap:12px}
.ac-steps li{display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:16px 18px}
.ac-step-n{width:30px;height:30px;border-radius:8px;background:var(--accent);color:#06121f;display:grid;place-items:center;font-weight:800;flex:none}
.ac-steps b{color:var(--text)}
.ac-steps p{margin:4px 0 0;font-size:.92rem}
.ac-comp{margin:24px 0}
.ac-comp-title{font-weight:700;color:var(--text);margin-bottom:12px}
.ac-comp-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ac-comp-col{border-radius:14px;padding:18px 20px;border:1px solid var(--border)}
.ac-comp-col--bad{background:rgba(255,93,115,.07);border-color:rgba(255,93,115,.3)}
.ac-comp-col--good{background:rgba(52,211,153,.08);border-color:rgba(52,211,153,.3)}
.ac-comp-label{font-weight:700;margin-bottom:10px}
.ac-comp-col--bad .ac-comp-label{color:#ff5d73}
.ac-comp-col--good .ac-comp-label{color:#34d399}
.ac-comp-col ul{margin:0;padding-left:18px;color:var(--text-soft);font-size:.9rem;line-height:1.6}
.ac-mf{margin:24px 0;display:flex;flex-direction:column;gap:10px}
.ac-mf-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ac-mf-myth,.ac-mf-fact{border-radius:12px;padding:14px 16px;font-size:.92rem;color:var(--text-soft)}
.ac-mf-myth{background:rgba(255,93,115,.07);border:1px solid rgba(255,93,115,.25)}
.ac-mf-fact{background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.25)}
.ac-mf-myth span,.ac-mf-fact span{display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;font-weight:700;margin-bottom:5px}
.ac-mf-myth span{color:#ff5d73}.ac-mf-fact span{color:#34d399}
.ac-checklist{list-style:none;padding:0;margin:22px 0;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 18px}
.ac-checklist li{padding:7px 0;border-bottom:1px solid var(--border)}
.ac-checklist li:last-child{border-bottom:0}
.ac-checklist label{display:flex;align-items:flex-start;gap:11px;cursor:pointer;color:var(--text-soft)}
.ac-checklist input{margin-top:4px;width:17px;height:17px;accent-color:var(--accent);flex:none}
.ac-checklist input:checked+span{color:var(--text-mute);text-decoration:line-through}
/* Quiz */
.ac-quiz{background:var(--surface);border:1px solid var(--border-strong);border-radius:16px;padding:24px;margin:28px 0}
.ac-quiz-head{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--text);font-size:1.1rem;margin-bottom:18px}
.ac-quiz-head i{color:var(--accent)}
.ac-q{margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.ac-q:last-child{margin-bottom:0;padding-bottom:0;border-bottom:0}
.ac-q-text{font-weight:600;color:var(--text);margin:0 0 12px}
.ac-q-opts{display:flex;flex-direction:column;gap:8px}
.ac-q-opt{text-align:left;background:var(--surface-2);border:1px solid var(--border);color:var(--text-soft);border-radius:10px;padding:11px 15px;cursor:pointer;font-size:.92rem;transition:.15s;font-family:inherit}
.ac-q-opt:hover:not(:disabled){border-color:var(--border-strong);color:var(--text)}
.ac-q-opt:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.ac-q-opt.is-correct{background:rgba(52,211,153,.15);border-color:#34d399;color:var(--text)}
.ac-q-opt.is-wrong{background:rgba(255,93,115,.13);border-color:#ff5d73;color:var(--text)}
.ac-q-opt:disabled{cursor:default}
.ac-q-explain{margin-top:11px;padding:11px 15px;background:var(--accent-soft);border-radius:10px;font-size:.88rem;color:var(--text-soft)}
.ac-takeaways{background:linear-gradient(135deg,rgba(124,92,255,.1),rgba(34,211,238,.06));border:1px solid var(--border-strong);border-radius:16px;padding:22px 24px;margin:28px 0}
.ac-takeaways-head{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--text);margin-bottom:12px}
.ac-takeaways-head i{color:#fbbf24}
.ac-takeaways ul{margin:0;padding-left:20px;color:var(--text-soft);line-height:1.7}
.ac-resource{display:inline-flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--border);border-radius:11px;padding:11px 18px;color:var(--accent);font-weight:600;margin:8px 0}
/* Complete + nav */
.ac-complete{text-align:center;margin:34px 0 10px}
.ac-complete-btn.is-done{background:#34d399;border-color:#34d399}
.ac-lessonnav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:34px 0}
.ac-lessonnav-btn{display:flex;flex-direction:column;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 20px;transition:.18s}
.ac-lessonnav-btn:hover{border-color:var(--accent);transform:translateY(-2px)}
.ac-lessonnav-btn span{font-size:.8rem;color:var(--text-mute);font-weight:600}
.ac-lessonnav-btn b{color:var(--text);font-size:.98rem}
.ac-lessonnav-next{text-align:right}
.ac-related h2{font-size:1.4rem;color:var(--text);margin:34px 0 16px}
.ac-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ac-related-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;transition:.18s}
.ac-related-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.ac-related-mod{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);font-weight:700}
.ac-related-card b{display:block;color:var(--text);margin:6px 0 4px}
.ac-related-card em{font-style:normal;color:var(--text-soft);font-size:.85rem}
.ac-continue{margin:26px 0 10px}
.ac-soon-box{text-align:center;background:var(--surface);border:1px dashed var(--border-strong);border-radius:18px;padding:44px 30px;margin:20px 0}
.ac-soon-box i{font-size:2.2rem;color:var(--accent);margin-bottom:14px}
.ac-soon-box h2{font-size:1.5rem;color:var(--text);margin:0 0 10px}
.ac-soon-box p{color:var(--text-soft);max-width:50ch;margin:0 auto 12px}
.ac-soon-outcome{background:var(--accent-soft);border-radius:10px;padding:12px 16px;display:inline-block}
/* Responsive */
@media(max-width:1000px){
  .ac-hero,.ac-chero{grid-template-columns:1fr}.ac-hero-art,.ac-chero-art{order:-1;min-height:180px}
  .ac-stats{grid-template-columns:repeat(3,1fr)}.ac-aud-grid{grid-template-columns:repeat(4,1fr)}
  .ac-why-grid{grid-template-columns:1fr 1fr}.ac-course-grid{grid-template-columns:1fr 1fr}
  .ac-intro{grid-template-columns:1fr}.ac-outcome-list{grid-template-columns:1fr}
  .ac-lesson-grid{grid-template-columns:1fr}
  .ac-sidebar{position:static;max-height:none;margin-bottom:10px}
  .ac-sidebar-toggle{display:flex}
  .ac-sidebar-inner{display:none;margin-top:10px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px}
  .ac-sidebar.is-open .ac-sidebar-inner{display:block}
}
@media(max-width:640px){
  .ac-course-grid,.ac-why-grid,.ac-related-grid,.ac-comp-cols,.ac-mf-row{grid-template-columns:1fr}
  .ac-stats,.ac-aud-grid{grid-template-columns:1fr 1fr}
  .ac-lessonnav{grid-template-columns:1fr}.ac-lessonnav-next{text-align:left}
  .ac-q-opt{padding:13px 15px}
}

/* ===== Academy: code demos & syntax (HTML course) ===== */
.ac-codedemo{margin:24px 0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--bg-2)}
.ac-codedemo-head{display:flex;justify-content:space-between;align-items:center;padding:9px 14px;background:var(--surface-2);border-bottom:1px solid var(--border);font-size:.8rem;color:var(--text-mute)}
.ac-codedemo-head span{color:var(--accent);font-weight:600}
.ac-codedemo-grid{display:grid;grid-template-columns:1fr 1fr;min-height:160px}
.ac-codedemo-code,.ac-codedemo-input{margin:0;padding:16px;font-family:ui-monospace,'JetBrains Mono',monospace;font-size:.85rem;line-height:1.6;color:var(--text);background:var(--bg-2);border:0;overflow:auto;white-space:pre-wrap;word-break:break-word}
.ac-codedemo-input{resize:vertical;outline:none;border-right:1px solid var(--border);min-height:160px;width:100%}
.ac-codedemo-input:focus{box-shadow:inset 0 0 0 2px var(--accent-soft)}
.ac-codedemo-code{border-right:1px solid var(--border)}
.ac-codedemo-frame{width:100%;min-height:160px;border:0;background:#fff}
.ac-codedemo-cap{padding:10px 14px;font-size:.84rem;color:var(--text-mute);border-top:1px solid var(--border);background:var(--surface)}
@media(max-width:720px){.ac-codedemo-grid{grid-template-columns:1fr}.ac-codedemo-input,.ac-codedemo-code{border-right:0;border-bottom:1px solid var(--border)}}
.ac-syntax{margin:24px 0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--surface)}
.ac-syntax-code{margin:0;padding:18px;background:var(--bg-2);font-family:ui-monospace,'JetBrains Mono',monospace;font-size:1rem;color:var(--accent);border-bottom:1px solid var(--border);overflow-x:auto}
.ac-syntax-parts{list-style:none;margin:0;padding:12px 16px;display:flex;flex-wrap:wrap;gap:8px 18px}
.ac-syntax-parts li{display:flex;align-items:center;gap:8px;font-size:.85rem}
.ac-syntax-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700;color:var(--accent);background:var(--accent-soft);padding:3px 8px;border-radius:6px}
.ac-syntax-parts code{font-family:ui-monospace,monospace;color:var(--text-soft);font-size:.82rem}

/* ===== Academy: difficulty level badges ===== */
.ac-level{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:3px 9px;border-radius:999px;white-space:nowrap}
.ac-level--beginner{background:rgba(52,211,153,.16);color:#34d399}
.ac-level--intermediate{background:rgba(93,214,255,.16);color:#5dd6ff}
.ac-level--advanced{background:rgba(168,128,255,.18);color:#a880ff}
.ac-level--senior{background:rgba(255,122,24,.16);color:#ff944d}
.ac-chip.ac-level{padding:5px 11px}

/* ===== About page redesign ===== */
.dk-about-title { font-size: clamp(2rem, 5vw, 3.2rem); margin: 18px 0 14px; max-width: 18ch; letter-spacing: -.02em; }
.dk-about-lead { margin: 0; max-width: 60ch; }
.dk-about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 36px 0 8px; }
.dk-about-stat { padding: 22px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); text-align: center; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s ease; }
.dk-about-stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.dk-about-stat strong { display: block; font-family: 'Sora'; font-size: 2rem; font-weight: 800; background: linear-gradient(120deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1; }
.dk-about-stat span { display: block; margin-top: 8px; font-size: .82rem; color: var(--text-mute); }
.dk-about-article-wrap { margin: 0; }
.dk-article { max-width: 760px; }
.dk-article-sub { color: var(--text); font-size: 1.15rem; margin-top: 24px; }
.dk-value-title { font-size: 1.08rem; }
.dk-about-cta-lead { color: var(--text-soft); margin: 0 0 20px; max-width: 48ch; margin-left: auto; margin-right: auto; }
.dk-about-cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.dk-link { color: var(--accent); }
@media (max-width: 760px) { .dk-about-stats { grid-template-columns: 1fr 1fr; } }

/* ===== Academy: CSS-course block types (codepair, preview, mistake, bestpractice, project) ===== */
.ac-codepair{margin:24px 0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--bg-2)}
.ac-codepair-cols{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border)}
.ac-codepair-pane{background:var(--bg-2);display:flex;flex-direction:column;min-width:0}
.ac-codepair-bar{display:flex;justify-content:space-between;align-items:center;padding:8px 13px;background:var(--surface-2);border-bottom:1px solid var(--border);font-size:.78rem;font-weight:600;color:var(--accent)}
.ac-codepair-bar .ac-copy{background:none;border:0;color:var(--text-mute);cursor:pointer;padding:3px 6px;border-radius:6px}
.ac-codepair-bar .ac-copy:hover{color:var(--text);background:var(--surface-3)}
.ac-codepair-code{margin:0;padding:14px;font-family:ui-monospace,'JetBrains Mono',monospace;font-size:.8rem;line-height:1.6;color:var(--text);overflow-x:auto;max-height:260px}
.ac-codepair-preview{position:relative;border-top:1px solid var(--border)}
.ac-codepair-preview iframe,.ac-preview iframe{width:100%;min-height:160px;border:0;background:#fff;display:block}
.ac-codepair-plabel,.ac-preview-label{display:block;padding:7px 13px;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;font-weight:700;color:var(--text-mute);background:var(--surface-2);border-bottom:1px solid var(--border)}
.ac-preview{margin:24px 0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--surface)}
.ac-preview-label i{color:var(--accent);margin-right:6px}
@media(max-width:680px){.ac-codepair-cols{grid-template-columns:1fr}}
.ac-mistake{margin:24px 0;border:1px solid rgba(255,93,115,.3);border-radius:14px;overflow:hidden;background:rgba(255,93,115,.05)}
.ac-mistake-head{display:flex;align-items:center;gap:9px;padding:12px 16px;font-weight:700;color:#ff8095;background:rgba(255,93,115,.1);border-bottom:1px solid rgba(255,93,115,.2)}
.ac-mistake-body{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:16px}
.ac-mistake-col span{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;margin-bottom:7px}
.ac-mistake-wrong span{color:#ff6b81}.ac-mistake-right span{color:#34d399}
.ac-mistake-col pre{margin:0;padding:12px;border-radius:9px;background:var(--bg-2);font-family:ui-monospace,monospace;font-size:.78rem;line-height:1.55;overflow-x:auto;border:1px solid var(--border)}
.ac-mistake-note{padding:0 16px 16px;margin:0;color:var(--text-soft);font-size:.92rem}
@media(max-width:680px){.ac-mistake-body{grid-template-columns:1fr}}
.ac-bestpractice{margin:24px 0;border:1px solid rgba(52,211,153,.3);border-radius:14px;background:rgba(52,211,153,.06);padding:0 0 4px}
.ac-bestpractice-head{display:flex;align-items:center;gap:9px;padding:12px 16px;font-weight:700;color:#34d399}
.ac-bestpractice p{margin:0;padding:0 16px 14px;color:var(--text-soft);font-size:.95rem;line-height:1.6}
.ac-project{margin:28px 0;border:1px solid var(--border-strong);border-radius:18px;overflow:hidden;background:var(--surface);position:relative}
.ac-project::before{content:'';position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--ac,#22d3ee),var(--primary))}
.ac-project-head{display:flex;align-items:center;gap:10px;padding:18px 20px 4px;font-size:1.2rem;font-weight:800;color:var(--text)}
.ac-project-head i{color:var(--ac,#22d3ee)}
.ac-project-goal{padding:4px 20px 12px;margin:0;color:var(--text-soft);font-size:1rem;line-height:1.6}
.ac-project-sec{padding:8px 20px}
.ac-project-sec b{display:block;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);margin-bottom:8px}
.ac-project-sec ul,.ac-project-sec ol{margin:0;padding-left:20px;color:var(--text-soft)}
.ac-project-sec li{margin-bottom:6px;line-height:1.5}
.ac-project-learned{margin:8px 20px 20px;padding:13px 16px;background:var(--surface-2);border-radius:11px;color:var(--text-soft);font-size:.92rem;display:flex;align-items:center;gap:9px}
.ac-project-learned i{color:#34d399}

/* ===== Performance/CLS: reserve space for icon font so late FA load doesn't shift layout ===== */
.fa-solid, .fa-brands, .fa-regular, [class^="fa-"], [class*=" fa-"] { display: inline-block; min-width: 1em; }
/* Icon font swap should not cause layout shift; FA fonts are display:block by default in their CSS */

/* ===== Template category landing — related categories grid ===== */
.dk-tpl-related { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.dk-tpl-related-card { display: flex; flex-direction: column; gap: 6px; padding: 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); text-decoration: none; transition: transform .2s var(--ease), border-color .2s ease, box-shadow .2s ease; }
.dk-tpl-related-card:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.dk-tpl-related-card > i { font-size: 1.2rem; color: var(--primary); }
.dk-tpl-related-name { font-weight: 700; color: var(--text); font-family: 'Sora', sans-serif; }
.dk-tpl-related-blurb { font-size: .86rem; color: var(--text-soft); line-height: 1.5; }
.dk-link-arrow { color: var(--primary); font-weight: 700; text-decoration: none; }
.dk-link-arrow:hover { text-decoration: underline; }
@media (max-width: 620px) { .dk-tpl-related { grid-template-columns: 1fr; } }

/* ===== Templates index — crawlable category links row ===== */
.dk-tpl-cat-links { display: flex; align-items: center; gap: 8px 14px; flex-wrap: wrap; margin: 4px 0 22px; font-size: .88rem; }
.dk-tpl-cat-links-label { color: var(--text-mute); font-weight: 600; }
.dk-tpl-cat-links a { color: var(--text-soft); text-decoration: none; font-weight: 600; border-bottom: 1px solid transparent; }
.dk-tpl-cat-links a:hover { color: var(--primary); border-bottom-color: var(--primary); }

/* ===== Generic transform tool widget ===== */
.dk-flex-between { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
[data-transform-opts] { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; }

/* ============================================================
   WordPress SEO section — advanced, image-rich design
   ============================================================ */

/* ---- Hero ---- */
.dk-wp-hub { padding-top: 8px; }
.dk-wp-hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; margin: 6px 0 26px; }
.dk-wp-hero-badge { display: inline-flex; align-items: center; gap: 8px; font-size: .82rem; font-weight: 700; color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent); border: 1px solid color-mix(in srgb, var(--primary) 28%, transparent); padding: 6px 14px; border-radius: 999px; }
.dk-wp-hero-copy h1 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: clamp(1.9rem, 4.2vw, 2.9rem); line-height: 1.08; margin: 16px 0 14px; letter-spacing: -.02em; }
.dk-wp-hero-copy p { color: var(--text-soft); font-size: 1.05rem; line-height: 1.6; max-width: 56ch; margin: 0 0 22px; }
.dk-wp-hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.dk-wp-hero-stats { display: flex; flex-wrap: wrap; gap: 26px; }
.dk-wp-hero-stats div { display: flex; flex-direction: column; }
.dk-wp-hero-stats b { font-family: 'Sora', sans-serif; font-size: 1.5rem; font-weight: 800; color: var(--text); line-height: 1; }
.dk-wp-hero-stats span { font-size: .8rem; color: var(--text-mute); margin-top: 4px; }
.dk-wp-hero-art { border-radius: 20px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-md); }
.dk-wpart-hero { display: block; width: 100%; height: auto; }

/* ---- Spotlight (featured suite) ---- */
.dk-wp-spotlight { position: relative; border-radius: 22px; overflow: hidden; border: 1px solid var(--border-strong); background: var(--surface); margin: 30px 0; }
.dk-wp-spotlight-band { position: absolute; inset: 0; z-index: 0; }
.dk-wpart-band { width: 100%; height: 100%; display: block; }
.dk-wp-spotlight-inner { position: relative; z-index: 1; padding: 30px 32px; }
.dk-wp-spotlight-head { display: flex; gap: 18px; align-items: flex-start; }
.dk-wp-spotlight-head h2 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.7rem; margin: 8px 0 6px; }
.dk-wp-spotlight-head p { color: var(--text-soft); margin: 0; max-width: 60ch; line-height: 1.55; }
.dk-wp-flag { display: inline-flex; align-items: center; gap: 7px; font-size: .76rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: .04em; }
.dk-wp-spotlight-feats { display: flex; flex-wrap: wrap; gap: 9px; margin: 22px 0; }
.dk-wp-feat-chip { display: inline-flex; align-items: center; gap: 7px; font-size: .85rem; color: var(--text-soft); background: var(--surface-2); border: 1px solid var(--border); padding: 7px 13px; border-radius: 999px; }
.dk-wp-feat-chip i { color: var(--success); font-size: .8rem; }
.dk-wp-spotlight-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }

/* ---- How it works ---- */
.dk-wp-how { margin: 44px 0; }
.dk-wp-how h2 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.5rem; text-align: center; margin: 0 0 26px; }
.dk-wp-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.dk-wp-step { display: flex; gap: 14px; align-items: flex-start; padding: 22px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); }
.dk-wp-step-n { flex: none; width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; font-family: 'Sora', sans-serif; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.dk-wp-step strong { display: block; font-size: 1.02rem; margin-bottom: 4px; }
.dk-wp-step p { margin: 0; color: var(--text-soft); font-size: .9rem; line-height: 1.5; }

/* ---- Category sections ---- */
.dk-wp-catsec { margin: 40px 0; }
.dk-wp-catsec-head { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.dk-wp-cat-icon { flex: none; width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; font-size: 1.25rem; color: var(--accent); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }
.dk-wp-catsec-head h2 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.4rem; margin: 0 0 2px; }
.dk-wp-catsec-head p { margin: 0; color: var(--text-mute); font-size: .92rem; }

/* ---- Cards (with illustration top) ---- */
.dk-wp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.dk-wp-card { display: flex; flex-direction: column; border-radius: 16px; overflow: hidden; background: var(--surface); border: 1px solid var(--border); text-decoration: none; transition: transform .2s var(--ease), border-color .2s ease, box-shadow .2s ease; --card-accent: var(--primary); }
.dk-wp-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--card-accent) 55%, var(--border-strong)); box-shadow: 0 12px 30px -12px color-mix(in srgb, var(--card-accent) 45%, transparent); }
.dk-wp-card-art { position: relative; height: 88px; overflow: hidden; background: linear-gradient(135deg, color-mix(in srgb, var(--card-accent) 16%, var(--surface-2)), var(--surface-2)); }
.dk-wp-card-art::after { content: ""; position: absolute; inset: 0; background: radial-gradient(120px 80px at 80% 20%, color-mix(in srgb, var(--card-accent) 22%, transparent), transparent 70%); }
.dk-wp-card-art svg { width: 100%; height: 100%; display: block; position: relative; z-index: 1; }
.dk-wp-card-icon { position: absolute; left: 18px; bottom: -18px; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.1rem; color: var(--card-accent); background: var(--surface); border: 1px solid color-mix(in srgb, var(--card-accent) 40%, var(--border-strong)); box-shadow: var(--shadow-sm); z-index: 2; }
.dk-wp-card-body { padding: 26px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.dk-wp-card-top2 { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.dk-wp-card-body h3 { font-family: 'Sora', sans-serif; font-size: 1.08rem; font-weight: 700; margin: 0; color: var(--text); }
.dk-wp-card-body p { font-size: .9rem; color: var(--text-soft); line-height: 1.5; margin: 0; flex: 1; }
.dk-wp-ver { flex: none; font-size: .72rem; font-weight: 700; color: var(--text-mute); background: var(--surface-2); border: 1px solid var(--border); padding: 3px 9px; border-radius: 999px; }
.dk-wp-dl { font-size: .82rem; font-weight: 700; color: var(--primary); margin-top: 4px; }

/* ---- Why section ---- */
.dk-wp-why { margin: 50px 0 20px; padding: 32px; border-radius: 22px; background: var(--surface); border: 1px solid var(--border); }
.dk-wp-why-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: start; }
.dk-wp-why-copy h2 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.5rem; margin: 0 0 12px; }
.dk-wp-why-copy p { color: var(--text-soft); line-height: 1.6; margin: 0 0 18px; }
.dk-wp-why-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.dk-wp-why-list li { display: flex; gap: 13px; align-items: flex-start; }
.dk-wp-why-ic { flex: none; width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; font-size: 1.05rem; color: var(--primary); background: color-mix(in srgb, var(--primary) 11%, transparent); }
.dk-wp-why-list strong { display: block; font-size: 1rem; }
.dk-wp-why-list span { color: var(--text-soft); font-size: .9rem; }

/* ---- Detail page hero band ---- */
.dk-wp-phead { position: relative; border-radius: 22px; overflow: hidden; border: 1px solid var(--border-strong); margin: 18px 0 30px; background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 8%, var(--surface)), var(--surface)); }
.dk-wp-phead-band { position: absolute; inset: 0; z-index: 0; opacity: .9; }
.dk-wp-phead-band .dk-wpart-band { width: 100%; height: 100%; display: block; }
.dk-wp-phead-inner { position: relative; z-index: 1; padding: 38px 34px; }
.dk-wp-phead-main { display: flex; gap: 20px; align-items: flex-start; }
.dk-wp-phead-main > div { min-width: 0; }
.dk-wp-phead-main h1 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: clamp(1.7rem, 4vw, 2.4rem); margin: 10px 0 10px; letter-spacing: -.02em; line-height: 1.1; }
.dk-wp-phead-tag { color: var(--text-soft); font-size: 1.05rem; line-height: 1.55; max-width: 62ch; margin: 0 0 20px; }
.dk-wp-icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 1.2rem; color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent); }
.dk-wp-icon--lg { width: 60px; height: 60px; font-size: 1.5rem; flex: none; }
.dk-wp-icon--xl { width: 72px; height: 72px; font-size: 1.9rem; flex: none; border: 1px solid var(--border-strong); box-shadow: var(--shadow-sm); }
.dk-wp-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.dk-wp-meta-inline { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: .82rem; color: var(--text-mute); }
.dk-wp-meta-inline span { display: inline-flex; align-items: center; gap: 6px; }

/* ---- Detail feature grid ---- */
.dk-wp-feat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; margin: 16px 0 8px; }
.dk-wp-feat-item { display: flex; gap: 11px; align-items: flex-start; padding: 13px 15px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); font-size: .92rem; color: var(--text-soft); }
.dk-wp-feat-tick { flex: none; width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: .72rem; color: var(--success); background: color-mix(in srgb, var(--success) 14%, transparent); margin-top: 1px; }
.dk-wp-dlrow { margin: 20px 0 4px; }
.dk-wp-article-wrap { max-width: 880px; margin: 0 auto; }
.dk-wp-related { margin: 44px 0 0; }
.dk-wp-related h2 { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.4rem; margin: 0 0 18px; }

/* ---- Responsive ---- */
@media (max-width: 920px) {
  .dk-wp-hero { grid-template-columns: 1fr; gap: 26px; }
  .dk-wp-hero-art { order: -1; }
  .dk-wp-why-grid { grid-template-columns: 1fr; gap: 24px; }
  .dk-wp-steps { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .dk-wp-phead-main { flex-direction: column; gap: 14px; }
  .dk-wp-hero-stats { gap: 18px; }
  .dk-wp-spotlight-inner, .dk-wp-phead-inner, .dk-wp-why { padding: 22px 18px; }
}