/* ===== DESIGN TOKENS — 7-dim.com ===== */
/* Art direction: bold dark scientific. True black with vivid blue, green, yellow, red accents. */

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Fonts */
  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* === ACCENT COLORS (constant across themes) === */
  --accent-blue: #3b9eff;
  --accent-green: #2dd4a0;
  --accent-yellow: #f5c542;
  --accent-red: #f0565c;
}

/* === DARK THEME (default) === */
:root,
[data-theme='dark'] {
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-surface-2: #1a1a1a;
  --color-surface-offset: #101010;
  --color-divider: #252525;
  --color-border: #333;

  --color-text: #e8e8e8;
  --color-text-muted: #999;
  --color-text-faint: #555;
  --color-text-inverse: #0a0a0a;

  /* Primary: vivid blue */
  --color-primary: #3b9eff;
  --color-primary-hover: #6cb8ff;
  --color-primary-active: #2080e0;
  --color-primary-highlight: #162030;

  /* Accent: green for highlights */
  --color-accent: #2dd4a0;
  --color-accent-hover: #5eecc0;
  --color-accent-muted: #1a8060;

  /* Dimension colors — bold BGRYR */
  --dim-xyz: #2dd4a0;  /* green — spatial */
  --dim-t: #f0565c;    /* red — time */
  --dim-g: #f5c542;    /* yellow — size/mass */
  --dim-w: #3b9eff;    /* blue — value */
  --dim-n: #c084fc;    /* purple — plurality */

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
}

/* === LIGHT THEME === */
[data-theme='light'] {
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-surface-2: #f0f0f0;
  --color-surface-offset: #e8e8e8;
  --color-divider: #ddd;
  --color-border: #ccc;

  --color-text: #111;
  --color-text-muted: #555;
  --color-text-faint: #999;
  --color-text-inverse: #f5f5f5;

  --color-primary: #1a6fcc;
  --color-primary-hover: #0f5aaa;
  --color-primary-active: #084a90;
  --color-primary-highlight: #dbeeff;

  --color-accent: #0fa07a;
  --color-accent-hover: #088060;
  --color-accent-muted: #30806a;

  --dim-xyz: #0fa07a;
  --dim-t: #d03838;
  --dim-g: #b89010;
  --dim-w: #1a6fcc;
  --dim-n: #8040d0;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg: #f5f5f5;
    --color-surface: #ffffff;
    --color-surface-2: #f0f0f0;
    --color-surface-offset: #e8e8e8;
    --color-divider: #ddd;
    --color-border: #ccc;
    --color-text: #111;
    --color-text-muted: #555;
    --color-text-faint: #999;
    --color-text-inverse: #f5f5f5;
    --color-primary: #1a6fcc;
    --color-primary-hover: #0f5aaa;
    --color-primary-active: #084a90;
    --color-primary-highlight: #dbeeff;
    --color-accent: #0fa07a;
    --color-accent-hover: #088060;
    --color-accent-muted: #30806a;
    --dim-xyz: #0fa07a;
    --dim-t: #d03838;
    --dim-g: #b89010;
    --dim-w: #1a6fcc;
    --dim-n: #8040d0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  }
}

/* ===== GLOBAL STYLES ===== */

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

/* ===== FIXED COAT OF ARMS — 4 corners, above all content ===== */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  background:
    url('./assets/img/crest-corner.png') top 1rem left 1rem / 18% auto no-repeat,
    url('./assets/img/crest-corner.png') top 1rem right 1rem / 18% auto no-repeat,
    url('./assets/img/crest-corner.png') bottom 1rem left 1rem / 18% auto no-repeat,
    url('./assets/img/crest-corner.png') bottom 1rem right 1rem / 18% auto no-repeat;
  pointer-events: none;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  color: var(--color-primary-hover);
}

/* ===== NAVIGATION ===== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}
.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
}
.nav-logo svg {
  width: 36px;
  height: 36px;
}
.nav-crest {
  height: 44px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  list-style: none;
}
.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.nav-links a:hover {
  color: var(--color-text);
}
.theme-toggle {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.nav-mobile-toggle {
  display: none;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-2) 0;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    display: block;
    padding: var(--space-3) var(--space-4);
  }
  .nav-mobile-toggle {
    display: grid;
  }
}

/* ===== HERO ===== */

.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: var(--space-16) var(--space-4);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg canvas {
  width: 100%;
  height: 100%;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}
.hero-subtitle {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.hero h1 {
  font-size: var(--text-hero);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-description {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}
.hero-formula {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-accent);
  padding: var(--space-3) var(--space-6);
  background: rgba(45, 212, 160, 0.08);
  border: 1px solid rgba(45, 212, 160, 0.2);
  border-radius: var(--radius-full);
  display: inline-block;
}
.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  animation: float 2s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ===== SECTIONS ===== */

.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-4);
}
.section-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-8), 5vw, var(--space-16));
}
.section-header h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}
.section-header p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

/* ===== DIMENSION CARDS ===== */

.dim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: var(--space-4);
}
.dim-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.dim-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}
.dim-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--color-primary));
}
.dim-card .dim-symbol {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  font-style: italic;
  color: var(--card-accent, var(--color-primary));
  margin-bottom: var(--space-2);
}
.dim-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.dim-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}
.dim-card .dim-formula {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  background: rgba(45, 212, 160, 0.06);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  margin-top: var(--space-4);
  display: inline-block;
}

/* Dimension accent colors */
.dim-card[data-dim="xyz"] { --card-accent: var(--dim-xyz); }
.dim-card[data-dim="t"] { --card-accent: var(--dim-t); }
.dim-card[data-dim="g"] { --card-accent: var(--dim-g); }
.dim-card[data-dim="w"] { --card-accent: var(--dim-w); }
.dim-card[data-dim="n"] { --card-accent: var(--dim-n); }

/* ===== FRAMEWORK / MATH SECTION ===== */

.formula-block {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  margin: var(--space-6) 0;
  overflow-x: auto;
}
.formula-block .formula-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}
.formula-main {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  color: var(--color-accent);
  line-height: 1.8;
  word-break: break-word;
}
.formula-explanation {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  line-height: 1.7;
}

/* Two-column layout for framework */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}
@media (max-width: 768px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}
.two-col .col-text h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.two-col .col-text p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

/* ===== APPLICATION CARDS ===== */

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(340px, 100%), 1fr));
  gap: var(--space-6);
}
.app-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.app-card:hover {
  border-color: var(--color-border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.app-card .app-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(59, 158, 255, 0.12);
  display: grid;
  place-items: center;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
}
.app-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.app-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== PARADIGM COMPARISON ===== */

.compare-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  min-width: 600px;
}
.compare-table thead {
  border-bottom: 2px solid var(--color-divider);
}
.compare-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}
.compare-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-muted);
  vertical-align: top;
}
.compare-table td:first-child {
  color: var(--color-text);
  font-weight: 500;
}
.compare-table td:last-child {
  color: var(--color-primary);
}

/* ===== INTERACTIVE 7D VIS ===== */

.vis-container {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-8) 0;
}
.vis-canvas-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  margin-bottom: var(--space-4);
}
.vis-canvas-wrap canvas {
  width: 100%;
  height: 100%;
}
.vis-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.vis-control {
  flex: 1;
  min-width: 120px;
}
.vis-control label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
  margin-bottom: var(--space-1);
}
.vis-control input[type="range"] {
  width: 100%;
  accent-color: var(--color-primary);
}

/* ===== FOOTER ===== */

.footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-12) var(--space-4);
  text-align: center;
}
.footer-inner {
  max-width: var(--content-default);
  margin: 0 auto;
}
.footer p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 auto;
}
.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}
.footer-logo svg {
  width: 28px;
  height: 28px;
}
.footer-crest {
  height: 48px;
  width: auto;
  object-fit: contain;
}

/* ===== SCROLL ANIMATIONS ===== */

.fade-in {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}
@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ===== STARFIELD GRADIENT (hero bg fallback) ===== */

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(59, 158, 255, 0.1) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

/* ===== QUOTE / HIGHLIGHT ===== */

.pullquote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--color-text);
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-6);
  margin: var(--space-10) 0;
  max-width: 700px;
}
.pullquote cite {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: normal;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

/* ===== AUTHOR / ABOUT ===== */

.author-block {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-8);
}
.author-block .author-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--color-divider);
}
.author-block .author-info h4 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
}
.author-block .author-info p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .author-block {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== DOCUMENTS PAGE ===== */

.doc-hero {
  padding-bottom: var(--space-8);
}
.doc-page-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-bottom: var(--space-4);
}
.doc-page-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.7;
}

.doc-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
  text-decoration: none;
  color: inherit;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}
.doc-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: inherit;
}
.doc-card:active {
  transform: translateY(0);
}
.doc-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(59, 158, 255, 0.1);
  display: grid;
  place-items: center;
  color: var(--color-primary);
}
.doc-card-body {
  flex: 1;
  min-width: 0;
}
.doc-card-body h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.doc-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}
.doc-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}
.doc-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: rgba(59, 158, 255, 0.08);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  line-height: 1.4;
}
.doc-filetype {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.doc-card-arrow {
  flex-shrink: 0;
  color: var(--color-text-faint);
  transition: color var(--transition-interactive), transform var(--transition-interactive);
  margin-top: var(--space-1);
}
.doc-card:hover .doc-card-arrow {
  color: var(--color-primary);
  transform: translate(2px, -2px);
}

.doc-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-10) var(--space-4);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  text-align: center;
  border: 1px dashed var(--color-divider);
  border-radius: var(--radius-lg);
}

/* Active nav link */
.nav-active {
  color: var(--color-primary) !important;
}

@media (max-width: 600px) {
  .doc-card {
    flex-direction: column;
  }
  .doc-card-arrow {
    display: none;
  }
}

/* ===== STORY SECTIONS ===== */

.section-story {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-4);
}
.story-flow {
  max-width: 780px;
  margin: 0 auto;
}
.story-block {
  margin-bottom: var(--space-8);
}
.story-block h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}
.story-block p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: var(--space-5);
}
.story-block p:last-child {
  margin-bottom: 0;
}
.story-block--lead p {
  font-size: var(--text-lg);
  line-height: 1.8;
}
.story-block--lead p:first-of-type {
  color: var(--color-text);
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
}

.pullquote--wide {
  max-width: 780px;
  margin: var(--space-12) auto;
  padding: var(--space-8) var(--space-8) var(--space-8) var(--space-8);
  border-left: 4px solid var(--accent-blue);
  background: rgba(59, 158, 255, 0.04);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  font-size: var(--text-xl);
}

/* ===== INTERLUDE (fish bowl, analogies) ===== */

.section-interlude {
  padding: clamp(var(--space-8), 6vw, var(--space-16)) var(--space-4);
}
.interlude-block {
  max-width: 780px;
  margin: 0 auto;
  padding: var(--space-10);
  background: rgba(59, 158, 255, 0.04);
  border: 1px solid rgba(59, 158, 255, 0.12);
  border-radius: var(--radius-xl);
}
.interlude-block h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-5);
  text-align: left;
}
.interlude-block .section-label {
  text-align: left;
}
.interlude-block p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: var(--space-4);
}
.interlude-block p:last-child {
  margin-bottom: 0;
}

/* ===== APPLICATION DETAIL (expanded physics cards) ===== */

.app-detail-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.app-detail {
  display: flex;
  gap: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.app-detail:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.app-detail-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(59, 158, 255, 0.1);
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  color: var(--color-primary);
}
.app-detail-content h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.app-detail-content p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}
.app-detail-content p:last-child {
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .app-detail {
    flex-direction: column;
  }
}

/* ===== SOCIETY GRID ===== */

.society-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(460px, 100%), 1fr));
  gap: var(--space-6);
}
.society-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.society-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
}
.society-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(59, 158, 255, 0.1);
  display: grid;
  place-items: center;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.society-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}
.society-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}
.society-card p:last-child {
  margin-bottom: 0;
}

/* ===== STRONGER VISUAL WEIGHT ===== */

/* Bolder headings */
.section-header h2 {
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Slightly stronger text contrast in light mode */
[data-theme='light'] .dim-card p,
[data-theme='light'] .story-block p,
[data-theme='light'] .app-detail-content p,
[data-theme='light'] .society-card p,
[data-theme='light'] .interlude-block p,
[data-theme='light'] .formula-explanation {
  color: #222;
}

/* Stronger section labels */
.section-label {
  font-weight: 500;
}

/* Light mode nav background */
[data-theme='light'] .nav {
  background: rgba(245, 245, 245, 0.88);
}

/* More visible borders in light mode */
[data-theme='light'] .dim-card,
[data-theme='light'] .app-detail,
[data-theme='light'] .society-card,
[data-theme='light'] .formula-block {
  border-color: #bbb;
}

/* Thicker accent bar on dim cards */
.dim-card::before {
  height: 4px;
}

/* W-card spanning full width */
.dim-card[data-dim="w"] {
  grid-column: 1 / -1;
}
@media (min-width: 900px) {
  .dim-card[data-dim="w"] {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0 var(--space-6);
  }
  .dim-card[data-dim="w"] .dim-symbol {
    grid-column: 1;
    grid-row: 1;
  }
  .dim-card[data-dim="w"] h3 {
    grid-column: 1;
    grid-row: 2;
    align-self: start;
  }
  .dim-card[data-dim="w"] p:first-of-type {
    grid-column: 2;
    grid-row: 1 / 3;
  }
}

/* ===== COLORED SECTION ACCENTS ===== */

/* Section labels use color coding */
#why .section-label { color: var(--accent-blue); }
#dimensions .section-label { color: var(--accent-green); }
#framework .section-label { color: var(--accent-yellow); }
#applications .section-label { color: var(--accent-red); }
#society .section-label { color: var(--accent-green); }
#author .section-label { color: var(--accent-blue); }

/* Colored left border on pullquotes */
.pullquote { border-left-color: var(--accent-yellow); }
.pullquote--wide { border-left-color: var(--accent-blue); }

/* Interlude block colored border */
.interlude-block {
  border-color: rgba(59, 158, 255, 0.25);
  background: rgba(59, 158, 255, 0.04);
}
.interlude-block .section-label { color: var(--accent-blue); }

/* Formula blocks: accent-colored title */
.formula-block .formula-title { color: var(--accent-yellow); }
.formula-main { color: var(--accent-green); }

/* Application detail icons: rotating accent colors */
.app-detail:nth-child(1) .app-detail-icon { background: rgba(245, 197, 66, 0.12); color: var(--accent-yellow); }
.app-detail:nth-child(2) .app-detail-icon { background: rgba(240, 86, 92, 0.12); color: var(--accent-red); }
.app-detail:nth-child(3) .app-detail-icon { background: rgba(59, 158, 255, 0.12); color: var(--accent-blue); }
.app-detail:nth-child(4) .app-detail-icon { background: rgba(45, 212, 160, 0.12); color: var(--accent-green); }
.app-detail:nth-child(5) .app-detail-icon { background: rgba(245, 197, 66, 0.12); color: var(--accent-yellow); }
.app-detail:nth-child(6) .app-detail-icon { background: rgba(192, 132, 252, 0.12); color: #c084fc; }

/* Society icons: rotating accent colors */
.society-card:nth-child(1) .society-icon { background: rgba(45, 212, 160, 0.12); color: var(--accent-green); }
.society-card:nth-child(2) .society-icon { background: rgba(59, 158, 255, 0.12); color: var(--accent-blue); }
.society-card:nth-child(3) .society-icon { background: rgba(240, 86, 92, 0.12); color: var(--accent-red); }
.society-card:nth-child(4) .society-icon { background: rgba(245, 197, 66, 0.12); color: var(--accent-yellow); }
.society-card:nth-child(5) .society-icon { background: rgba(45, 212, 160, 0.12); color: var(--accent-green); }
.society-card:nth-child(6) .society-icon { background: rgba(59, 158, 255, 0.12); color: var(--accent-blue); }

/* Paradigm table: colored 7D column */
.compare-table td:last-child { color: var(--accent-green); }

/* Hero gradient with blue glow */
.hero::after {
  background: radial-gradient(ellipse at 50% 120%, rgba(59, 158, 255, 0.12) 0%, transparent 70%) !important;
}

/* Hero formula pill */
.hero-formula {
  color: var(--accent-green);
  background: rgba(45, 212, 160, 0.08);
  border-color: rgba(45, 212, 160, 0.25);
}

/* Hero subtitle */
.hero-subtitle { color: var(--accent-blue); }

/* Dim card hover glow by color */
.dim-card[data-dim="xyz"]:hover { box-shadow: 0 4px 20px rgba(45, 212, 160, 0.15); }
.dim-card[data-dim="t"]:hover { box-shadow: 0 4px 20px rgba(240, 86, 92, 0.15); }
.dim-card[data-dim="g"]:hover { box-shadow: 0 4px 20px rgba(245, 197, 66, 0.15); }
.dim-card[data-dim="w"]:hover { box-shadow: 0 4px 20px rgba(59, 158, 255, 0.15); }
.dim-card[data-dim="n"]:hover { box-shadow: 0 4px 20px rgba(192, 132, 252, 0.15); }

/* App detail hover accents */
.app-detail:nth-child(1):hover { border-color: rgba(245, 197, 66, 0.4); }
.app-detail:nth-child(2):hover { border-color: rgba(240, 86, 92, 0.4); }
.app-detail:nth-child(3):hover { border-color: rgba(59, 158, 255, 0.4); }
.app-detail:nth-child(4):hover { border-color: rgba(45, 212, 160, 0.4); }
.app-detail:nth-child(5):hover { border-color: rgba(245, 197, 66, 0.4); }
.app-detail:nth-child(6):hover { border-color: rgba(192, 132, 252, 0.4); }

/* Society card hover accents */
.society-card:nth-child(1):hover { border-color: rgba(45, 212, 160, 0.4); }
.society-card:nth-child(2):hover { border-color: rgba(59, 158, 255, 0.4); }
.society-card:nth-child(3):hover { border-color: rgba(240, 86, 92, 0.4); }
.society-card:nth-child(4):hover { border-color: rgba(245, 197, 66, 0.4); }
.society-card:nth-child(5):hover { border-color: rgba(45, 212, 160, 0.4); }
.society-card:nth-child(6):hover { border-color: rgba(59, 158, 255, 0.4); }

/* Author avatar ring */
.author-block .author-avatar {
  border-color: rgba(59, 158, 255, 0.3);
}

/* ===== SECTION ILLUSTRATIONS ===== */

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}
.hero-bg canvas {
  position: relative;
  z-index: 1;
}

.section-illustration {
  max-width: 780px;
  margin: 0 auto var(--space-10);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-divider);
}
.section-illustration img {
  width: 100%;
  height: auto;
  display: block;
}
.section-illustration--wide {
  max-width: 100%;
  margin-bottom: var(--space-10);
}

.interlude-illustration {
  margin: var(--space-5) 0 var(--space-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.interlude-illustration img {
  width: 100%;
  height: auto;
  display: block;
}

/* Light mode: slightly brighter illustrations */
[data-theme='light'] .hero-bg-img {
  opacity: 0.18;
}
[data-theme='light'] .section-illustration {
  border-color: var(--color-border);
}

/* ===== CUSTOM SCROLLBAR (subtle) ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-faint); }