@font-face {
  font-family: 'Geist';
  src: url('https://cdn.jsdelivr.net/fontsource/fonts/geist:vf@latest/latin-wght-normal.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: 'Geist Mono';
  src: url('https://cdn.jsdelivr.net/fontsource/fonts/geist-mono:vf@latest/latin-wght-normal.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-display: swap;
}
/* ==========================================================
   ETHUX — OBSERVATORY
   Dark scientific instrument aesthetic
   ========================================================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  /* Backgrounds */
  --bg: #f1f1f1;
  --bg-raised: #ffffff;
  --bg-panel: rgba(255, 255, 255, 0.72);
  --bg-panel-solid: #ffffff;
  --surface: #F0EDE8;
  --surface-hover: rgba(8, 58, 243, 0.02);
  /* Borders */
  --border: rgba(8, 58, 243, 0.08);
  --border-light: rgba(8, 58, 243, 0.04);
  /* Text */
  --text: #1C1917;
  --text-dim: #515151;
  --text-muted: #A8A29E;
  /* Primary accent: Ethereum blue (matches logo) */
  --accent: #083AF3;
  --accent-hover: #0630D4;
  --accent-dim: rgba(8, 58, 243, 0.12);
  --accent-glow: rgba(8, 58, 243, 0.06);
  /* Secondary accent */
  --accent-secondary: #2BB4A8;
  --accent-secondary-dim: rgba(43, 180, 168, 0.10);
  /* Semantic */
  --red: #EF4444;
  --red-dim: rgba(239, 68, 68, 0.10);
  --green: #22C55E;
  --green-dim: rgba(34, 197, 94, 0.10);
  --blue: #5a8aea;
  --blue-dim: rgba(90, 138, 234, 0.12);
  --purple: #8b6ce0;
  --purple-dim: rgba(139, 108, 224, 0.12);
  --cyan: #4ac4c4;
  --cyan-dim: rgba(74, 196, 196, 0.10);
  --amber: #E8A020;
  --amber-dim: rgba(232, 160, 32, 0.12);
  /* System */
  --transition: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.15s ease;
  --radius-sm: 4px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;
  --radius-full: 9999px;
  --shadow-sm: none;
  --shadow-md: none;
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.04);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  /* Layout */
  --nav-height: 56px;
  /* Typography */
  --font-display: 'Libre Baskerville', Georgia, serif;
  --font-body: 'Geist', system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, monospace;

  /* Status */
  --solved: var(--green); --solved-bg: var(--green-dim);
  --in-progress: var(--amber); --in-progress-bg: var(--amber-dim);
  --unsolved: var(--text-muted); --unsolved-bg: rgba(168,162,158,0.1);
  --research: var(--cyan); --research-bg: var(--cyan-dim);
  --critical: var(--red); --critical-bg: var(--red-dim);
  --high: var(--amber); --high-bg: var(--amber-dim);
  --medium: var(--blue); --medium-bg: var(--blue-dim);
  --info: var(--text-muted); --info-bg: rgba(168,162,158,0.1);

  /* Category colors */
  --cat-1: var(--accent); --cat-2: #2BB4A8; --cat-3: var(--amber);
  --cat-4: var(--red); --cat-5: var(--purple); --cat-6: var(--green);
  --cat-7: #D4A07A; --cat-8: #64748B;
}

/* ==========================================================
   DARK MODE
   ========================================================== */
html.dark {
  --bg: #0c0c10;
  --bg-raised: #151519;
  --bg-panel: rgba(21, 21, 25, 0.85);
  --bg-panel-solid: #151519;
  --surface: #1c1c22;
  --surface-hover: rgba(59, 111, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.04);
  --text: #F0EEEB;
  --text-dim: #A8A6A3;
  --text-muted: #858481;
  --accent: #2563FF;
  --accent-hover: #4580FF;
  --accent-dim: rgba(37, 99, 255, 0.18);
  --accent-glow: rgba(37, 99, 255, 0.10);
  --accent-secondary: #3DD4C6;
  --accent-secondary-dim: rgba(61, 212, 198, 0.12);
  --red: #F87171;
  --red-dim: rgba(248, 113, 113, 0.12);
  --green: #4ADE80;
  --green-dim: rgba(74, 222, 128, 0.12);
  --blue: #7CA8F4;
  --blue-dim: rgba(124, 168, 244, 0.12);
  --purple: #A78BFA;
  --purple-dim: rgba(167, 139, 250, 0.12);
  --cyan: #5ED5D5;
  --cyan-dim: rgba(94, 213, 213, 0.12);
  --amber: #FBBF24;
  --amber-dim: rgba(251, 191, 36, 0.12);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.3);
  --cat-1: var(--accent); --cat-2: #3DD4C6; --cat-3: var(--amber);
  --cat-4: var(--red); --cat-5: var(--purple); --cat-6: var(--green);
  --cat-7: #E0B08A; --cat-8: #8B9CB7;
}
html.dark .sol-table th { background: rgba(255, 255, 255, 0.03); }
html.dark .problem-meta-box:has(.opp) { background: rgba(74, 222, 128, 0.06); border-color: rgba(74, 222, 128, 0.15); }
html.dark .problem-meta-box:has(.risk) { background: rgba(248, 113, 113, 0.06); border-color: rgba(248, 113, 113, 0.15); }
html.dark .footer-initiative { filter: invert(1); }

html {
  scrollbar-gutter: stable;
}
body {
  font-family: var(--font-body);
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  background-image: radial-gradient(circle, #d5d5d5 1px, transparent 1px);
  background-size: 24px 24px;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
html.dark body {
  background-image: radial-gradient(circle, rgba(255,255,255,0.12) 1px, transparent 1px);
}

/* ==========================================================
   GRAIN OVERLAY
   ========================================================== */
#grain {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 1000;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ==========================================================
   NAVIGATION
   ========================================================== */
.nav {
  position: sticky; top: 0;
  z-index: 200;
  height: var(--nav-height);
  background: var(--bg-panel);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
}
.nav-inner {
  display: flex; align-items: center;
  height: 100%;
}

.nav-home {
  display: flex; align-items: center; gap: 12px;
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}
.nav-home svg { width: 18px; height: 28px; color: var(--accent); }
.nav-home:hover { color: var(--accent); }
.nav-wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.nav-links-desktop {
  display: flex; align-items: center; gap: 32px;
  margin-left: 48px;
}
.nav-links-desktop a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
}
.nav-links-desktop a:hover { color: var(--accent); }
.nav-links-desktop a.active { color: var(--accent); }
.nav-links-desktop a.active::after { display: none; }
/* Mobile fullscreen menu — lives outside .nav to avoid backdrop-filter stacking context */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 199;
  background: var(--bg-panel-solid);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  padding: 16px 0;
  transition: color var(--transition);
}
.mobile-menu a:hover,
.mobile-menu a.active { color: var(--accent); }

.nav-external { display: inline-flex; align-items: center; gap: 4px; }
.nav-external svg { width: 12px; height: 12px; opacity: 0.5; }
.nav-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition), border-color var(--transition);
  margin-left: auto;
  flex-shrink: 0;
}
.nav-theme-toggle:hover { color: var(--accent); border-color: var(--accent-dim); }
.nav-theme-toggle svg { width: 16px; height: 16px; }
.nav-theme-toggle svg:first-child { display: block; }
.nav-theme-toggle svg:last-child { display: none; }
html.dark .nav-theme-toggle svg:first-child { display: none; }
html.dark .nav-theme-toggle svg:last-child { display: block; }
.nav-hamburger {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: none; border: none; cursor: pointer;
  color: var(--text);
}

/* ==========================================================
   LAYOUT
   ========================================================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding-left: 48px;
  padding-right: 48px;
}

/* ==========================================================
   HERO
   ========================================================== */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 180px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
}
.hero-content {
  flex: 1;
  min-width: 0;
}
.hero-image {
  flex-shrink: 0;
  width: 440px;
}
.hero-svg { width: 100%; height: auto; }

/* Circle + nodes — static, visible but quiet */
.hero-svg-circle { stroke: #c0c0c0; }
.hero-svg-nodes circle { fill: var(--bg); stroke: #c0c0c0; }
html.dark .hero-svg-circle { stroke: #3a3a44; }
html.dark .hero-svg-nodes circle { stroke: #3a3a44; }

/* Glyph — vivid, color cycling */
.hero-svg-glyph {
  animation: glyphColor 12s ease-in-out infinite;
}
@keyframes glyphColor {
  0%   { stroke: #083AF3; }
  20%  { stroke: #2BB4A8; }
  40%  { stroke: #8b6ce0; }
  60%  { stroke: #E8A020; }
  80%  { stroke: #22C55E; }
  100% { stroke: #083AF3; }
}

/* Rays — static, same as circle and nodes */
.hero-svg-rays { stroke: #c0c0c0; }
html.dark .hero-svg-rays { stroke: #3a3a44; }
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 32px;
}
.hero-title .accent {
  color: var(--accent);
  white-space: nowrap;
}
.hero-desc {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-dim);
  max-width: 540px;
  margin-bottom: 0;
}
.hero-cta-group { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; margin-top: 32px; }
.hero-cta {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--accent);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  transition: all var(--transition-fast);
}
.hero-cta:hover { background: var(--accent-hover); }
.hero-cta--ghost { background: none; color: var(--accent); padding-left: 0; gap: 5px; }
.hero-cta--ghost:hover { background: none; color: var(--accent-hover); transform: none; box-shadow: none; }
.hero-desc--secondary { margin-top: 8px; }
.hero-cta svg { width: 14px; height: 14px; }

main { padding-bottom: 120px; }
.page-container { padding-top: calc(var(--nav-height) + 40px); min-height: 100vh; }



/* ==========================================================
   SECTION HEADERS
   ========================================================== */
.section { margin-bottom: 144px; }
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.section-eyebrow::before { display: none; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
}
.section-desc {
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 48px;
}
.section-title--sm { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.section--tight { margin-bottom: 64px; }
.pull-quote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 400;
  line-height: 1.4;
  color: var(--accent);
  text-align: center;
  max-width: 680px;
  margin: 0 auto 144px;
  padding: 72px 0;
}

/* ==========================================================
   CATEGORY GRID
   ========================================================== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.cat-card {
  background: var(--bg-raised);
  padding: 28px 24px 24px;
  cursor: pointer;
  transition: background var(--transition);
  position: relative;
  min-height: 140px;
  display: flex;
  flex-direction: column;
}
.cat-card:hover { background: #f0f3fe; }
html.dark .cat-card:hover { background: #181c2b; }
.cat-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
}
.cat-card-icon img { width: 100%; height: 100%; object-fit: contain; }
.cat-card-icon svg { width: 100%; height: 100%; color: var(--accent); }
.cat-card:hover .cat-card-icon svg { color: var(--cat-color); }
.cat-card-title {
  font-family: var(--font-body);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}
.cat-card-hook {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.45;
  margin-top: 8px;
}
.cat-card-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.cat-card-bar {
  flex: 1;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.cat-card-bar-fill {
  height: 100%;
  background: var(--bar-progress-color, var(--accent));
  border-radius: 2px;
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.cat-card-pct {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 32px;
  text-align: right;
}

/* ==========================================================
   CRITICAL PROBLEMS
   ========================================================== */
.crit-list { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.crit-item {
  display: grid;
  grid-template-columns: 40px 1fr auto 20px;
  align-items: center;
  gap: 16px;
  padding: 24px 28px;
  background: var(--bg-panel-solid);
  transition: background var(--transition);
}
.crit-item:hover { background: var(--accent-glow); }
.crit-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--red);
  letter-spacing: 0.06em;
}
.crit-info-title {
  font-family: var(--font-body);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.crit-info-cat {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
}
.crit-severity {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: capitalize;
  color: var(--red);
  background: none;
  padding: 0;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.crit-severity::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
}

/* Expandable critical cards */
.crit-card { background: var(--bg-panel-solid); }
.crit-item { cursor: pointer; }
.crit-expand {
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
  grid-column: 4;
  text-align: center;
}
.crit-card.open .crit-expand { transform: rotate(90deg); }
.crit-detail {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.crit-card.open .crit-detail { overflow: visible; }
.crit-detail-inner {
  padding: 16px 32px 48px 32px;
}
.crit-story {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 40px;
  padding: 20px 24px;
  background: var(--accent-glow);
  font-style: normal;
}
.crit-story .persona {
  font-weight: 700;
  color: var(--text);
}
.crit-solutions-row {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 40px;
}
.crit-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}
.crit-meta-box {
  padding: 24px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.crit-meta-label {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: none;
  margin-bottom: 14px;
}
.crit-meta-label.opp { color: var(--green); }
.crit-meta-label.risk { color: var(--red); }
.crit-meta-text {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.7;
}
.crit-meta-text .lead {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.5;
}
.crit-meta-text ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0;
}
.crit-meta-text ul li {
  padding: 4px 0;
  margin-bottom: 6px;
  line-height: 1.55;
}
.crit-meta-text ul li::marker { color: var(--text-muted); }
.crit-sol-tag {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0;
  background: none;
  color: var(--text-dim);
  letter-spacing: 0;
  border: none;
  position: relative;
  transition: color var(--transition);
}
.crit-sol-tag:hover { color: var(--text); }
.crit-solutions-row { gap: 0; }
.crit-sol-tag + .crit-sol-tag::before {
  content: '\00b7';
  margin: 0 10px;
  color: var(--text-muted);
}
.crit-link-cat {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color var(--transition);
  padding-bottom: 2px;
}
.crit-link-cat:hover { border-color: var(--accent); }

@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .crit-detail-inner { padding-left: 24px; padding-right: 20px; }
  .crit-meta-grid { grid-template-columns: 1fr; }
}

/* ==========================================================
   GUIDE CARDS
   ========================================================== */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.guide-card {
  background: var(--bg-panel-solid);
  padding: 28px;
  transition: background var(--transition);
}
.guide-card:hover { background: var(--accent-glow); }
.guide-card-title {
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.2;
}
.guide-card-desc {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 16px;
}
.guide-tags { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.guide-tag {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0;
  background: none;
  border: none;
}
.guide-format-badges { display: inline-flex; gap: 8px; margin-left: 8px; }
.guide-format {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.guide-format::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.guide-format.human { color: var(--green); background: none; }
.guide-format.human::before { background: var(--green); }
.guide-format.agent { color: var(--purple); background: none; }
.guide-format.agent::before { background: var(--purple); }

/* ==========================================================
   GUIDE CARDS V2 (Homepage)
   ========================================================== */
.guide-grid-v2 {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.guide-card-v2 {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 20px 28px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: background var(--transition);
}
.guide-card-v2:last-child { border-bottom: none; }
.guide-card-v2:hover { background: var(--accent-glow); }
.guide-card-v2-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.guide-card-v2-title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
.guide-card-v2-patterns {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  text-align: right;
}
.guide-card-v2-desc {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.5;
}
.guide-card-v2-tags { display: none; }

/* ==========================================================
   CHECKLIST ACCORDION (Guides page)
   ========================================================== */
.cl-accordion { display: flex; flex-direction: column; gap: 2px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.cl-section { background: var(--bg-panel-solid); }
.cl-section.open { background: var(--bg-raised); }
.cl-section.cl-complete .cl-progress-text { color: var(--green); }
.cl-section.cl-complete .cl-progress-ring .fill { stroke: var(--green); }
.cl-section.cl-complete .cl-header-title::after { content: ' Complete'; font-size: 0.75rem; font-weight: 500; color: var(--green); margin-left: 8px; }
.cl-header {
  display: flex; align-items: center; gap: 16px;
  padding: 28px 32px;
  cursor: pointer;
  transition: background var(--transition);
}
.cl-header:hover { background: var(--accent-glow); }
.cl-expand {
  color: var(--text-muted);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  order: 3;
  margin-left: 8px;
}
.cl-section.open .cl-expand { transform: rotate(90deg); color: var(--accent); }
.cl-header-info { flex: 1; }
.cl-header-title {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.cl-header-desc {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.55;
}
.cl-header-meta {
  display: flex; gap: 12px; align-items: center; flex-shrink: 0;
}
.cl-progress-ring {
  width: 40px; height: 40px;
  position: relative;
}
.cl-progress-ring svg { width: 40px; height: 40px; transform: rotate(-90deg); }
.cl-progress-ring circle {
  fill: none; stroke-width: 3;
}
.cl-progress-ring .track { stroke: var(--border); }
.cl-progress-ring .fill { stroke: var(--green); transition: stroke-dashoffset 0.4s ease; stroke-linecap: round; }
.cl-progress-text {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-dim);
}
.cl-body {
  display: none;
}
.cl-section.open .cl-body { display: block; }
.cl-body-inner {
  padding: 0 32px 32px 32px;
}
.cl-items { display: flex; flex-direction: column; gap: 0; }
.cl-item {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.cl-item:last-child { border-bottom: none; }
.cl-checkbox {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border: 2px solid var(--border);
  background: transparent;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  margin-top: 2px;
}
.cl-checkbox:hover { border-color: var(--accent); }
.cl-checkbox.checked {
  border-color: var(--green);
  background: var(--green);
}
.cl-checkbox.checked::after {
  content: '\2713';
  color: var(--bg);
  font-size: 0.75rem;
  font-weight: 700;
}
.cl-item.done .cl-item-text { text-decoration: line-through; color: var(--text-muted); }
.cl-item-num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  width: 24px;
  text-align: right;
  margin-top: 4px;
}
.cl-item-content { flex: 1; cursor: pointer; }
.cl-item-doc {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  padding-bottom: 1px;
  transition: border-color var(--transition);
  margin-left: 8px;
}
.cl-item-doc:hover { border-color: var(--accent); }
.cl-item-doc svg { width: 12px; height: 12px; }
.cl-item-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.45;
  transition: color var(--transition);
}
.cl-item-benefit {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.6;
  margin-top: 6px;
}
.cl-item-meta {
  display: flex; gap: 8px; margin-top: 10px; align-items: center;
}
.cl-item-eip {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0;
  background: none;
  color: var(--purple);
  letter-spacing: 0;
  border: none;
}
.cl-item-priority {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: capitalize;
  padding: 0;
  border: none;
  background: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cl-item-priority::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.cl-item-priority.critical { color: var(--red); }
.cl-item-priority.critical::before { background: var(--red); }
.cl-item-priority.high { color: var(--amber); }
.cl-item-priority.high::before { background: var(--amber); }
.cl-item-priority.medium { color: var(--blue); }
.cl-item-priority.medium::before { background: var(--blue); }
.cl-agent-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
}
.cl-agent-bar-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text);
  letter-spacing: 0.02em;
}
.cl-agent-bar-text strong { color: var(--accent); font-weight: 600; }
.cl-agent-bar-text code {
  background: rgba(0,0,0,0.2);
  padding: 2px 6px;
  font-size: 0.7rem;
}
html:not(.dark) .cl-agent-bar-text code { background: rgba(0,0,0,0.06); }
.cl-dl-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 16px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  text-decoration: none;
}
.cl-dl-btn:hover { opacity: 0.85; transform: translateY(-1px); }

@media (max-width: 768px) {
  .cl-header { padding: 20px; }
  .cl-body-inner { padding: 0 20px 20px 20px; }
  .cl-header-desc {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 0.8rem;
  }
}

/* ==========================================================
   CTA BAR
   ========================================================== */
.cta-section {
  border: none;
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-top: 48px;
  margin-bottom: 144px;
  background: linear-gradient(135deg, var(--accent-dim) 0%, var(--bg-raised) 60%);
}
.cta-headline {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.cta-text {
  font-size: 1rem;
  color: var(--text-dim);
}

/* ==========================================================
   BUTTONS
   ========================================================== */
.btn {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0;
  padding: 10px 20px;
  height: 40px;
  border-radius: var(--radius-md);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-ghost:hover { background: var(--accent); color: var(--bg); }

/* ==========================================================
   FOOTER
   ========================================================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer-text a { color: var(--text-dim); text-decoration: none; transition: color var(--transition); }
.footer-text a:hover { color: var(--accent); }
.footer-text strong { color: var(--text-dim); font-weight: 500; }
.footer-issue {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ==========================================================
   CATEGORY PAGE
   ========================================================== */
.cat-back {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  margin-bottom: 24px;
  transition: color var(--transition);
}
.cat-back:hover { color: var(--accent); }
.cat-back::before { content: '\2190'; }
.cat-page-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 24px;
  display: flex; align-items: center; gap: 16px;
}
.cat-page-title svg { width: 32px; height: 32px; }
.cat-page-desc {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 64px;
}
.cat-nav {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 64px;
}
.cat-nav-item {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.cat-nav-item:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.cat-nav-item.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--bg-panel-solid);
  cursor: default;
}

/* ==========================================================
   PROBLEM ACCORDION
   ========================================================== */
.problem-list { display: flex; flex-direction: column; gap: 2px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.cat-missing {
  margin-top: 24px;
  text-align: right;
}
.cat-missing a {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.cat-missing a:hover { color: var(--accent); }
.cat-missing a svg { width: 12px; height: 12px; }
.problem-card { background: var(--bg-panel-solid); }
.problem-card:first-child { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.problem-card:last-child { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.problem-card:first-child:last-child { border-radius: var(--radius-lg); }
.problem-card.open { background: var(--bg-raised); }
.problem-head {
  display: flex; align-items: center; gap: 16px;
  padding: 24px 28px;
  cursor: pointer;
  transition: background var(--transition);
}
.problem-head:hover { background: var(--accent-glow); }
.problem-expand {
  color: var(--text-muted);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  order: 3;
  margin-left: 8px;
}
.problem-card.open .problem-expand { transform: rotate(90deg); color: var(--accent); }
.problem-title {
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  flex: 1;
  transition: color var(--transition);
}
.problem-head:hover .problem-title { color: var(--accent); }
.problem-badges { display: flex; gap: 8px; flex-shrink: 0; margin-left: auto; }
.badge {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: capitalize;
  padding: 0;
  border: none;
  background: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.badge::before { display: none; }
.badge-critical { color: var(--red); }
.badge-critical::before { background: var(--red); }
.badge-high { color: var(--amber); }
.badge-high::before { background: var(--amber); }
.badge-medium { color: var(--blue); }
.badge-medium::before { background: var(--blue); }
.badge-info { color: var(--text-muted); }
.badge-info::before { background: var(--text-muted); }
.badge-solved { color: var(--green); }
.badge-solved::before { background: var(--green); }
.badge-in-progress { color: var(--amber); }
.badge-in-progress::before { background: var(--amber); }
.badge-unsolved { color: var(--text-muted); }
.badge-unsolved::before { background: var(--text-muted); }
.badge-research { color: var(--cyan); }
.badge-research::before { background: var(--cyan); }
.badge-none { color: var(--red); font-weight: 700; }
.badge-none::before { background: var(--red); }

.problem-body {
  display: none;
}
.problem-card.open .problem-body {
  display: block;
}
.problem-content {
  padding: 0 32px 48px 32px;
}
/* Quote carousel */
.quote-carousel {
  margin: 0 0 32px 0;
  position: relative;
}
.quote-carousel-track {
  overflow: hidden;
}
.quote-slide {
  display: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--text-dim);
}
.quote-slide.active { display: block; }
.quote-slide .quote-source {
  display: block;
  margin-top: 8px;
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}
.quote-carousel-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}
.quote-carousel-nav button {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition), border-color var(--transition);
  padding: 0;
}
.quote-carousel-nav button:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
}
.quote-carousel-nav button svg { width: 14px; height: 14px; }
.quote-carousel-counter {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.problem-desc {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.75;
  margin-bottom: 40px;
}
.sol-section { margin-top: 32px; border: 1px solid var(--border); border-radius: var(--radius-md); overflow-x: auto; }
.sol-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.sol-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.sol-table th {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 58, 243, 0.025);
}
.sol-table td {
  padding: 12px 16px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.sol-table td:first-child { font-weight: 600; color: var(--text); }
.sol-table tr:last-child td { border-bottom: none; }
.sol-table th:last-child,
.sol-table td:last-child { text-align: right; }
.sol-adoption { font-size: 0.8rem; color: var(--text-muted); }
.sol-none { background: var(--red-dim); }
.sol-none .sol-adoption { color: var(--red); font-weight: 600; }

/* Inline status tags */
.sol-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: 8px;
  vertical-align: middle;
  white-space: nowrap;
}
.sol-tag-solved { color: var(--green); background: var(--green-dim); }
.sol-tag-in-progress { color: var(--amber); background: var(--amber-dim); }
.sol-tag-research { color: var(--cyan); background: var(--cyan-dim); }
.sol-tag-none { color: var(--red); background: var(--red-dim); }
.sol-tag-unsolved { color: var(--text-muted); background: rgba(168,162,158,0.1); }

/* Tooltip icon + popup */
.sol-tag-tip {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: help;
}
.sol-tag-icon {
  width: 13px;
  height: 13px;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}
.sol-tag-tip:hover .sol-tag-icon { opacity: 1; }
.sol-tag-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  font-size: 0.85rem;
  font-weight: 400;
  font-style: normal;
  letter-spacing: 0;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
}
.sol-tag-tip:hover .sol-tag-tooltip { display: block; }
.problem-eips {
  margin-top: 32px;
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.problem-eips-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-right: 4px;
}
.eip-tag {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0;
  background: none;
  color: var(--purple);
  letter-spacing: 0;
  text-decoration: none;
}
a.eip-tag:hover { text-decoration: underline; }
.problem-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}
.problem-meta-box {
  padding: 24px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.problem-meta-box:has(.opp) { background: rgba(34, 197, 94, 0.06); border-color: rgba(34, 197, 94, 0.15); }
.problem-meta-box:has(.risk) { background: rgba(239, 68, 68, 0.06); border-color: rgba(239, 68, 68, 0.15); }
.problem-meta-label {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: none;
  margin-bottom: 14px;
}
.problem-meta-label.opp { color: var(--green); }
.problem-meta-label.risk { color: var(--red); }
.problem-meta-text {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.7;
}
.problem-meta-text .lead {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.5;
}
.problem-meta-text ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0;
}
.problem-meta-text ul li {
  padding: 4px 0;
  margin-bottom: 6px;
  line-height: 1.55;
}
.problem-meta-text ul li::marker { color: var(--text-muted); }
@media (max-width: 768px) {
  .problem-meta-grid { grid-template-columns: 1fr; }
  .problem-head { padding: 16px 16px; gap: 10px; flex-wrap: wrap; }
  .problem-title { font-size: 1rem; }
  .problem-badges { width: 100%; order: 3; }
  .problem-expand { order: 2; }
  .problem-content { padding: 0 16px 32px 16px; }
}
.problem-checklist-btn {
  margin-top: 32px;
}

/* ==========================================================
   SUBMIT FORM
   ========================================================== */
.form-card {
  border: 1px solid var(--border);
  padding: 32px;
  background: var(--bg-panel-solid);
  color: var(--text);
  border-radius: var(--radius-lg);
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.form-label-opt { color: var(--text-muted); }
.form-input, .form-textarea, .form-select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color var(--transition);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { cursor: pointer; }
.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.success-msg {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--green-dim);
  color: var(--green);
  font-size: 0.875rem;
  display: none;
}
.success-msg.show { display: block; }

/* ==========================================================
   ABOUT PAGE
   ========================================================== */
.about-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 32px;
}
.about-content h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text);
  margin: 40px 0 16px;
}
.about-content p {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 640px;
}
.about-content a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent-dim); }
.about-content a:hover { border-color: var(--accent); }
.about-content strong { color: var(--text); font-weight: 500; }

.tracks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 16px 0 24px;
}
.track-card {
  background: var(--bg-panel-solid);
  padding: 20px 24px;
}
.track-card-title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.track-card-desc {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-dim);
}
.track-card-desc a { color: var(--accent); text-decoration: none; }

/* ==========================================================
   NAV DROPDOWN
   ========================================================== */
.nav-dropdown {
  position: relative;
  display: inline-block;
}
.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  padding: 0;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-dropdown-trigger:hover,
.nav-dropdown-trigger.active { color: var(--text); }
.nav-dropdown-trigger svg {
  width: 10px; height: 10px;
  transition: transform 0.2s ease;
}
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-panel-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px;
  padding-top: 14px;
  min-width: 180px;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
  transform: translateX(-50%) translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 8px 12px;
  font-size: 0.8rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-dim);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.nav-dropdown-menu a:hover {
  background: var(--surface);
  color: var(--text);
}

/* ==========================================================
   INSIGHT PAGES — PROSE LAYOUT
   ========================================================== */
.prose {
  max-width: 640px;
  margin: 0 auto;
  padding-top: calc(var(--nav-height) + 40px);
  min-height: 100vh;
}
.prose h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 24px;
}
.prose .page-subtitle {
  font-size: 1.25rem;
  color: var(--text-dim);
  margin-bottom: 64px;
  line-height: 1.7;
}
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text);
  margin: 64px 0 20px;
}
.prose h3 {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin: 40px 0 12px;
}
.prose p {
  font-size: 1.125rem;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 20px;
}
.prose blockquote {
  padding: 12px 20px;
  margin: 24px 0;
  background: var(--accent-glow);
  border-radius: 0 6px 6px 0;
}
.prose blockquote p {
  margin: 0;
  color: var(--text);
  font-style: italic;
}
.prose ul {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}
.prose ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 1.125rem;
  color: var(--text-dim);
  line-height: 1.7;
}
.prose ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ==========================================================
   ADOPTION CURVE DIAGRAM
   ========================================================== */
.curve-container {
  margin: 32px 0 40px;
  padding: 40px 0 24px;
}
.curve-segments {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0;
  height: 160px;
  margin-bottom: 16px;
  max-width: 100%;
}
.curve-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.curve-bar-fill {
  width: 100%;
  border-radius: 4px 4px 0 0;
  transition: height 0.4s ease;
}
.curve-bar-label {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
  line-height: 1.2;
  word-break: break-word;
  max-width: 100%;
  padding: 0 2px;
}
.curve-bar-pct {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.curve-chasm {
  width: 4px;
  align-self: stretch;
  background: var(--red);
  border-radius: 2px;
  position: relative;
  margin: 0 2px;
}
.curve-chasm-label {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.curve-bar.innovators .curve-bar-fill { background: var(--cyan); height: 40px; }
.curve-bar.early-adopters .curve-bar-fill { background: var(--accent); height: 90px; }
.curve-bar.early-majority .curve-bar-fill { background: var(--green); height: 160px; }
.curve-bar.late-majority .curve-bar-fill { background: var(--blue); height: 130px; }
.curve-bar.laggards .curve-bar-fill { background: var(--text-muted); height: 50px; }

/* ==========================================================
   JOURNEY STEPS (VERTICAL TIMELINE)
   ========================================================== */
.journey-steps {
  position: relative;
  margin: 32px 0 40px;
  padding-left: 40px;
}
.journey-steps::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.journey-step {
  position: relative;
  padding: 0 0 32px;
}
.journey-step:last-child { padding-bottom: 0; }
.journey-step-num {
  position: absolute;
  left: -40px;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  z-index: 1;
}
.journey-step.active .journey-step-num {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}
.journey-step-title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.journey-step-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ==========================================================
   PARADIGM COMPARISON
   ========================================================== */
.paradigm-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0 40px;
}
.paradigm-box {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--bg-panel-solid);
}
.paradigm-box-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.paradigm-box.investing .paradigm-box-title { color: var(--accent); }
.paradigm-box.transacting .paradigm-box-title { color: var(--amber); }
.prose .paradigm-box.transacting ul li::before { background: var(--amber); }
.paradigm-box-title .paradigm-icon {
  width: 18px;
  height: 18px;
}
.paradigm-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.paradigm-box li {
  font-size: 0.875rem;
  color: var(--text-dim);
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
  line-height: 1.5;
}
.paradigm-box li:last-child { border-bottom: none; }
.prose .paradigm-box ul li::before { top: calc(6px + 0.55em); }

/* ==========================================================
   INSIGHT CARDS (HOME PAGE)
   ========================================================== */
.insight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.insight-card {
  padding: 32px 28px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  display: block;
  transition: border-color 0.3s ease;
}
.insight-card:first-child {
  grid-column: 1 / -1;
}
.insight-card:hover {
  border-color: var(--accent);
}
.insight-card-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.insight-card-title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.25;
}
.insight-card-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.7;
}
.insight-card:first-child .insight-card-title { font-size: 1.5rem; }
.insight-card:first-child .insight-card-desc { font-size: 0.95rem; }

/* ==========================================================
   CROSS-LINKS
   ========================================================== */
.cross-links {
  margin: 56px 0 40px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
}
.cross-links-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.cross-links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cross-link {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
  background: var(--surface);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}
.cross-link:hover {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ==========================================================
   HERO LINK
   ========================================================== */
.hero-desc-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition);
}
.hero-desc-link:hover {
  text-decoration-color: var(--accent);
}

/* ==========================================================
   CRADL ATTRIBUTION
   ========================================================== */
/* Evidence callout */
.evidence-callout {
  margin: 40px 0 48px;
  padding: 28px 32px;
  border: 1px solid rgba(8, 58, 243, 0.15);
  border-radius: var(--radius-lg);
  background: #f0f3fe;
}
html.dark .evidence-callout {
  background: #181c2b;
}
.evidence-callout-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.evidence-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.evidence-stat-value {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  line-height: 1;
  color: var(--text);
  margin-bottom: 8px;
}
.evidence-stat-label {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.5;
}
.evidence-sources {
  margin-top: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.evidence-inline-source {
  font-size: 0.8rem;
  color: var(--text-muted);
}
@media (max-width: 768px) {
  .evidence-stats { grid-template-columns: 1fr; }
  .evidence-callout { padding: 20px; }
}

.cradl-attribution {
  margin: 48px 0 24px;
  padding: 16px 20px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.cradl-attribution a {
  color: var(--accent);
  text-decoration: none;
}
.cradl-attribution a:hover {
  text-decoration: underline;
}

/* ==========================================================
   RESPONSIVE — INSIGHT PAGES
   ========================================================== */
@media (max-width: 768px) {
  .insight-grid { grid-template-columns: 1fr; }
  .paradigm-compare { grid-template-columns: 1fr; }
  .curve-segments { height: 120px; }
  .curve-bar.innovators .curve-bar-fill { height: 30px; }
  .curve-bar.early-adopters .curve-bar-fill { height: 65px; }
  .curve-bar.early-majority .curve-bar-fill { height: 120px; }
  .curve-bar.late-majority .curve-bar-fill { height: 95px; }
  .curve-bar.laggards .curve-bar-fill { height: 38px; }
  .nav-dropdown-menu {
    left: 0;
    transform: translateX(0);
  }
  .nav-dropdown:hover .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu,
  .nav-dropdown.open .nav-dropdown-menu {
    transform: translateX(0) translateY(0);
  }
}

/* ==========================================================
   AI AGENTS PAGE
   ========================================================== */
.agents-hero-box {
  background: rgba(90, 138, 234, 0.08);
  border: 1px solid rgba(90, 138, 234, 0.2);
  border-radius: 2px;
  padding: 36px 40px;
  margin-bottom: 48px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
html:not(.dark) .agents-hero-box {
  background: rgba(59, 111, 208, 0.06);
  border-color: rgba(59, 111, 208, 0.18);
}
.agents-hero-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.agents-hero-icon svg {
  width: 36px;
  height: 36px;
}
.agents-hero-content {
  flex: 1;
}
.agents-hero-title {
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.agents-hero-box p {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.7;
}
.agents-hero-box code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: rgba(0,0,0,0.15);
  padding: 2px 8px;
  color: var(--text);
}
html:not(.dark) .agents-hero-box code { background: rgba(0,0,0,0.06); }
.agents-dl-all {
  margin-top: 16px;
  display: inline-flex; align-items: center; gap: 10px;
}
/* Builders Hero */
.builders-hero {
  padding-bottom: 48px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.builders-hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.builders-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 16px;
}
.builders-hero-desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-dim);
  max-width: 600px;
  margin-bottom: 32px;
}
.builders-hero-desc a { color: var(--accent); text-decoration: none; font-weight: 600; }
.builders-hero-desc a:hover { text-decoration: underline; }
.builders-hero-action { max-width: 640px; }
.builders-hero-tabs {
  display: flex;
  gap: 0;
}
.builders-hero-tab {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-bottom: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.builders-hero-tab.active {
  color: var(--text);
  background: var(--accent-glow);
}
.builders-hero-code-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--text-dim);
  padding: 10px 16px 0;
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-bottom: none;
  border-top: none;
}
.builders-hero-code-block {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}
.builders-hero-code-block code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  flex: 1;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.builders-hero-copy {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}
.builders-hero-copy:hover { opacity: 0.88; }
.builders-hero-copy.copied { background: var(--green); }

/* Skill card action buttons */
.skill-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.skill-btn-primary {
  background: var(--accent) !important;
  color: var(--bg) !important;
  border-color: var(--accent) !important;
  padding: 8px 18px !important;
  transition: opacity var(--transition-fast) !important;
}
.skill-btn-primary:hover { opacity: 0.88; }
.skill-btn-primary.copied { background: var(--green) !important; border-color: var(--green) !important; }
.skill-btn-secondary,
.skill-btn-tertiary {
  background: none !important;
  border: none !important;
  padding: 8px 0 !important;
  font-size: 0.8rem !important;
  color: var(--accent) !important;
  text-decoration: none;
  cursor: pointer;
  margin-left: auto;
}
.skill-btn-tertiary {
  color: var(--text-muted) !important;
  margin-left: 0;
}
.skill-btn-secondary:hover,
.skill-btn-tertiary:hover { text-decoration: underline; }
.skill-btn-secondary.copied { color: var(--green) !important; }
.skill-btn-tertiary.copied { color: var(--green) !important; }

@media (max-width: 640px) {
  .builders-hero-code-block { flex-direction: column; align-items: stretch; gap: 8px; }
  .builders-hero-code-block code { white-space: normal; overflow: visible; text-overflow: unset; }
  .builders-hero-copy { align-self: flex-start; }
}

.skill-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.skill-card {
  background: var(--bg-panel-solid);
  padding: 32px 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: start;
  transition: background var(--transition);
}
.skill-card-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 10px;
}
.skill-card-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-top: 3px;
}
.skill-card-icon svg {
  width: 26px;
  height: 26px;
}
.skill-card-info {}
.skill-card-title {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}
.skill-card-path {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 12px;
}
.skill-card-desc {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.skill-card-what {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.skill-card-what-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.skill-card-what-item {
  font-size: 0.875rem;
  color: var(--text-dim);
  padding-left: 14px;
  position: relative;
}
.skill-card-what-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  background: var(--accent);
}
.skill-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.skill-card-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
  padding-top: 4px;
}

@media (max-width: 768px) {
  .skill-card { grid-template-columns: 1fr; }
  .skill-card-actions { flex-direction: row; align-items: center; }
}

/* ==========================================================
   CHECKLISTS PAGE
   ========================================================== */
.info-box {
  background: var(--bg-panel-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.info-box strong { color: var(--text); font-weight: 600; }
.info-box code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--surface);
  padding: 2px 6px;
}
.code-path {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}
.recipe-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.recipe-table th {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  padding: 8px 12px 8px 0;
  border-bottom: 1px solid var(--border);
}
.recipe-table td {
  padding: 10px 12px 10px 0;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}

/* ==========================================================
   ANIMATIONS
   ========================================================== */
/* Page entrance */
#app { opacity: 1; }

/* Scroll-triggered reveals */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease-out-expo), transform 600ms var(--ease-out-expo);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }

/* Grid children stagger (decelerating) */
.reveal-grid > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms var(--ease-out-expo), transform 500ms var(--ease-out-expo);
}
.reveal-grid.revealed > * { opacity: 1; transform: translateY(0); }
.reveal-grid.revealed > *:nth-child(1) { transition-delay: 0ms; }
.reveal-grid.revealed > *:nth-child(2) { transition-delay: 50ms; }
.reveal-grid.revealed > *:nth-child(3) { transition-delay: 90ms; }
.reveal-grid.revealed > *:nth-child(4) { transition-delay: 120ms; }
.reveal-grid.revealed > *:nth-child(5) { transition-delay: 145ms; }
.reveal-grid.revealed > *:nth-child(6) { transition-delay: 165ms; }
.reveal-grid.revealed > *:nth-child(7) { transition-delay: 180ms; }
.reveal-grid.revealed > *:nth-child(8) { transition-delay: 190ms; }

/* Legacy compat */
.fade-up { opacity: 1; }

/* ==========================================================
   ACCESSIBILITY
   ========================================================== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
:focus:not(:focus-visible) {
  outline: none;
}
.cat-card:active { background: var(--accent-glow); }
.skip-link {
  position: absolute; left: -9999px; top: auto;
  z-index: 1001; padding: 8px 16px;
  background: var(--accent); color: var(--bg);
  font-family: var(--font-body); font-size: 0.875rem;
  text-decoration: none; border-radius: var(--radius-sm);
}
.skip-link:focus { left: 16px; top: 16px; }

@supports (padding: env(safe-area-inset-top)) {
  .nav-inner {
    padding-left: max(48px, env(safe-area-inset-left));
    padding-right: max(48px, env(safe-area-inset-right));
  }
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 768px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .nav-inner { padding: 0 20px; }
  .nav-wordmark { display: none; }
  .nav-links-desktop { display: none; }
  .nav-hamburger { display: flex; margin-left: auto; }
  .hero { padding-top: calc(var(--nav-height) + 32px); padding-bottom: 64px; flex-direction: column; gap: 40px; }
  .hero-image { width: 200px; order: -1; }
  .hero-title { font-size: clamp(2rem, 9vw, 3.5rem); margin-bottom: 20px; }
  .section { margin-bottom: 56px; }
  .cta-section { flex-direction: column; text-align: center; padding: 28px; margin-bottom: 48px; }
  .hero-cta { padding: 12px 20px; font-size: 0.75rem; }
  .btn { padding: 14px 28px; min-height: 44px; }
  .form-input, .form-textarea, .form-select { font-size: 16px; }
  .agents-hero-box { flex-direction: column; padding: 24px 20px; gap: 16px; }
  .skill-card { padding: 20px; }
  .cl-agent-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
  .cat-nav { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 8px; }
  .cat-nav-item { padding: 10px 14px; min-height: 44px; display: inline-flex; align-items: center; white-space: nowrap; flex-shrink: 0; }
  .cross-link { padding: 12px 16px; min-height: 44px; display: inline-flex; align-items: center; }
  .cl-dl-btn { padding: 12px 20px; min-height: 44px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .crit-item { grid-template-columns: 1fr auto 20px; gap: 8px; }
  .crit-num { display: none; }
  .guide-grid { grid-template-columns: 1fr; }
  .guide-card-v2 { grid-template-columns: 1fr; gap: 8px; }
  .guide-card-v2-patterns { text-align: left; }
  .insight-card:first-child { grid-column: 1 / -1; }
  .insight-grid { grid-template-columns: repeat(2, 1fr); }
  .pull-quote { font-size: 1.1rem; padding: 32px 0; margin-bottom: 56px; }
  .tracks-grid { grid-template-columns: 1fr; }
  .cat-page-title { font-size: clamp(2rem, 8vw, 3rem); }
  .sol-section { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .sol-table td { word-break: break-word; }
}

@media (max-width: 400px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .nav-inner { padding: 0 12px; }
}

/* ==========================================================
   FOOTER
   ========================================================== */
.site-footer {
  margin-top: 80px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-initiative {
  opacity: 0.6;
  transition: opacity var(--transition);
}
.footer-initiative:hover { opacity: 1; }
.footer-initiative img { display: block; }
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text); }
@media (max-width: 768px) {
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal, .reveal-grid > * { opacity: 1; transform: none; }
}