/* ============================================
   ECOLOGICAL INTELLIGENCE — Main Stylesheet
   Palette: Deep forest greens, moss, earth
   Fonts: Zodiak (display) + Satoshi (body)
   ============================================ */

/* ---- TOKENS ---- */
:root {
  --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,    7.5rem);

  --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;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.15);

  --content-narrow: 720px;
  --content-default: 1000px;
  --content-wide: 1280px;

  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;
}

/* LIGHT MODE */
:root, [data-theme="light"] {
  --color-bg:             #f5f4ee;
  --color-surface:        #faf9f5;
  --color-surface-2:      #ffffff;
  --color-surface-offset: #ece9e0;
  --color-divider:        #ddd9ce;
  --color-border:         #d2cec0;
  --color-text:           #1e1d18;
  --color-text-muted:     #6a6860;
  --color-text-faint:     #b0ae9f;
  --color-text-inverse:   #f5f4ee;

  --color-primary:        #2d6b3a;
  --color-primary-hover:  #1f4f2a;
  --color-primary-light:  #e8f0e9;
  --color-accent:         #7a9e4e;
  --color-accent-2:       #c47c2a;
  --color-earth:          #8b6914;
  --color-moss:           #5a7c3a;
}

/* DARK MODE */
[data-theme="dark"] {
  --color-bg:             #0f1208;
  --color-surface:        #141709;
  --color-surface-2:      #1a1e0c;
  --color-surface-offset: #111409;
  --color-divider:        #252a12;
  --color-border:         #323820;
  --color-text:           #d4d8c0;
  --color-text-muted:     #8a9070;
  --color-text-faint:     #4a5030;
  --color-text-inverse:   #0f1208;

  --color-primary:        #6db87a;
  --color-primary-hover:  #4fa060;
  --color-primary-light:  #1a2e1c;
  --color-accent:         #9dc462;
  --color-accent-2:       #e09b45;
  --color-earth:          #c0972e;
  --color-moss:           #85b855;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0f1208;
    --color-surface:        #141709;
    --color-surface-2:      #1a1e0c;
    --color-surface-offset: #111409;
    --color-divider:        #252a12;
    --color-border:         #323820;
    --color-text:           #d4d8c0;
    --color-text-muted:     #8a9070;
    --color-text-faint:     #4a5030;
    --color-text-inverse:   #0f1208;
    --color-primary:        #6db87a;
    --color-primary-hover:  #4fa060;
    --color-primary-light:  #1a2e1c;
    --color-accent:         #9dc462;
    --color-accent-2:       #e09b45;
    --color-earth:          #c0972e;
    --color-moss:           #85b855;
  }
}

/* ---- BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
}

img, video, svg { display: block; max-width: 100%; }
ul { list-style: none; }
button { cursor: pointer; background: none; border: none; color: inherit; font: inherit; }
a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; transition: color var(--transition); }
a:hover { color: var(--color-primary-hover); }
h1,h2,h3,h4 { text-wrap: balance; line-height: 1.2; font-family: var(--font-display); }
p, li { text-wrap: pretty; max-width: 68ch; }

::selection { background: color-mix(in oklch, var(--color-primary) 25%, transparent); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

strong { font-weight: 700; color: var(--color-text); }
em { font-style: italic; }

/* ---- LAYOUT ---- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}
.container-narrow {
  width: 100%;
  max-width: var(--content-narrow);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}

/* ---- NAV ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-4) clamp(var(--space-6), 5vw, var(--space-16));
  background: color-mix(in oklab, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  flex-shrink: 0;
}

.nav-logo:hover { color: var(--color-primary); }

.nav-links {
  display: flex;
  gap: var(--space-6);
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.nav-links a:hover { color: var(--color-primary); }

.theme-toggle {
  padding: var(--space-2);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-offset); }

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav { gap: var(--space-4); }
}

/* ---- HERO ---- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-24) clamp(var(--space-6), 5vw, var(--space-16));
}

/* ---- HERO DISCLAIMER ---- */
.hero-disclaimer {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-8);
  max-width: 580px;
  text-align: left;
}

.hero-disclaimer p {
  font-size: var(--text-xs);
  line-height: 1.6;
  color: #c0392b;
  max-width: none;
}

.disclaimer-label {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-right: var(--space-2);
}

/* keep white bg in both modes */
[data-theme="dark"] .hero-disclaimer {
  background: #ffffff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  overflow: hidden;
}

.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid color-mix(in oklch, var(--color-primary) 20%, transparent);
  animation: breathe 8s ease-in-out infinite;
}

.ring-1 { width: 300px; height: 300px; animation-delay: 0s; }
.ring-2 { width: 600px; height: 600px; animation-delay: 1.5s; border-style: dashed; opacity: 0.5; }
.ring-3 { width: 1000px; height: 1000px; animation-delay: 3s; opacity: 0.3; }

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.04); opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.hero-sublabel {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #e05555;
  margin-top: var(--space-2);
  margin-bottom: var(--space-6);
  font-family: var(--font-body);
  text-transform: none;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.0;
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.hero-title em {
  font-style: italic;
  color: var(--color-primary);
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-12);
  max-width: 60ch;
  margin-inline: auto;
}

.hero-audio {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.hero-audio-player {
  width: clamp(280px, 60vw, 540px);
  height: 44px;
  border-radius: var(--radius-md);
  accent-color: var(--color-primary);
  outline: none;
}

[data-theme="dark"] .hero-audio-player {
  filter: invert(0.85) hue-rotate(160deg) saturate(1.4) brightness(0.95);
}

.hero-audio-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---- SECTIONS ---- */
.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24));
}

.section-alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.section-dark {
  background: color-mix(in oklab, var(--color-bg) 60%, var(--color-primary) 40%);
  border-top: 1px solid color-mix(in oklch, var(--color-primary) 30%, transparent);
  border-bottom: 1px solid color-mix(in oklch, var(--color-primary) 30%, transparent);
}

[data-theme="light"] .section-dark {
  background: color-mix(in oklab, var(--color-surface) 70%, var(--color-primary) 30%);
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  max-width: 18ch;
}

.section-intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 60ch;
  margin-bottom: var(--space-12);
}

/* ---- HERO QUOTE (Rich Blundell) ---- */
.hero-quote {
  margin: 0 0 var(--space-16);
  padding: var(--space-12) var(--space-12);
  background: color-mix(in oklab, var(--color-surface) 75%, var(--color-primary) 25%);
  border: 1px solid color-mix(in oklch, var(--color-primary) 35%, transparent);
  border-radius: var(--radius-xl);
  text-align: center;
}

[data-theme="light"] .hero-quote {
  background: color-mix(in oklab, var(--color-surface-2) 70%, var(--color-primary) 30%);
}

.hero-quote-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: 400;
  line-height: 1.65;
  color: var(--color-text);
  margin-bottom: var(--space-8);
  max-width: none;
}

.hero-quote-source {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.hero-quote-source strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary);
}

.hero-quote-source span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (max-width: 600px) {
  .hero-quote {
    padding: var(--space-8) var(--space-6);
  }
  .hero-quote-text {
    font-size: var(--text-lg);
  }
}

/* ---- ABRAM WIND QUOTE ---- */
.abram-quote {
  margin: var(--space-10) 0 var(--space-12);
  padding: var(--space-8) var(--space-10);
  border-left: 3px solid var(--color-primary);
  background: color-mix(in oklab, var(--color-surface) 80%, var(--color-primary) 20%);
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
  position: relative;
}

[data-theme="light"] .abram-quote {
  background: color-mix(in oklab, var(--color-surface-2) 75%, var(--color-primary) 25%);
}

.abram-quote::before {
  content: '\201C';
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.25;
}

.abram-quote-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  line-height: 1.75;
  color: var(--color-text);
  max-width: 72ch;
  margin-bottom: var(--space-5);
}

.abram-quote-source {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
}

.abram-quote-source strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
}

.abram-quote-source span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.abram-quote-note {
  display: block;
  width: 100%;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: normal;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
  max-width: 64ch;
}

@media (max-width: 600px) {
  .abram-quote {
    padding: var(--space-6) var(--space-5);
    margin: var(--space-8) 0;
  }
  .abram-quote-text {
    font-size: var(--text-base);
  }
}

/* ---- CONCEPT EVOLUTION ---- */
.concept-evolution {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.evolution-step {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: var(--space-6);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  transition: border-color var(--transition), transform var(--transition);
}

.evolution-step:hover {
  border-color: var(--color-primary);
  transform: translateX(4px);
}

.highlight-step {
  border-color: color-mix(in oklch, var(--color-primary) 60%, transparent);
  background: color-mix(in oklab, var(--color-surface-2) 80%, var(--color-primary) 20%);
}

.step-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  flex-shrink: 0;
}

.step-content h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.step-content p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
}

.evolution-arrow {
  display: flex;
  justify-content: center;
  padding: var(--space-2) 0;
  color: var(--color-accent);
}

/* ---- TIMELINE ---- */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: clamp(60px, 12vw, 120px);
}

.timeline::before {
  content: '';
  position: absolute;
  left: clamp(42px, 8vw, 72px);
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--color-border) 10%, var(--color-border) 90%, transparent);
}

.timeline-item {
  position: relative;
  padding: var(--space-6) 0 var(--space-8) var(--space-10);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-date {
  position: absolute;
  left: calc(-1 * clamp(60px, 12vw, 120px));
  top: var(--space-6);
  width: clamp(48px, 9vw, 80px);
  text-align: right;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-body);
  letter-spacing: 0.05em;
}

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-3) - 1px);
  top: calc(var(--space-6) + 6px);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  border: 2px solid var(--color-bg);
  transition: background var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--color-primary);
}

.timeline-highlight .timeline-dot {
  width: 14px;
  height: 14px;
  background: var(--color-primary);
  left: calc(-1 * var(--space-3) - 3px);
  top: calc(var(--space-6) + 4px);
}

.timeline-content h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  font-family: var(--font-display);
}

.timeline-content p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 58ch;
}

.tag {
  display: inline-block;
  margin-top: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: color-mix(in oklch, var(--color-primary) 15%, transparent);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ---- THINKERS GRID ---- */
.traditions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
}

.tradition-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.tradition-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.tradition-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}

.tradition-card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-5);
  font-family: var(--font-display);
  font-style: italic;
  line-height: 1.3;
}

.thinker-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.thinker-list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-divider);
  max-width: none;
}

.thinker-list strong {
  display: block;
  color: var(--color-text);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: 2px;
}

.thinker-list em {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-style: normal;
}

.thinker-list a, .st-thinker a, .timeline-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: inherit;
}

.thinker-list a:hover, .st-thinker a:hover, .timeline-content a:hover {
  color: var(--color-primary-hover);
}

.year {
  display: inline-block;
  margin-left: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  font-style: normal;
  font-family: var(--font-body);
}

/* ---- SPECIES GRID ---- */
.species-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.species-card {
  padding: var(--space-8);
  background: color-mix(in oklab, var(--color-surface) 80%, var(--color-primary) 20%);
  border: 1px solid color-mix(in oklch, var(--color-primary) 25%, transparent);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition), transform var(--transition);
}

[data-theme="light"] .species-card {
  background: color-mix(in oklab, var(--color-surface-2) 85%, var(--color-primary) 15%);
}

.species-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.species-emoji {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: var(--space-4);
}

.species-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.species-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  max-width: none;
}

.species-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-accent);
  border-left: 2px solid var(--color-primary);
  padding-left: var(--space-4);
  line-height: 1.6;
  margin-top: var(--space-4);
  max-width: none !important;
}

/* ---- CULTURES GRID ---- */
.cultures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
}

.culture-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.culture-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.culture-region {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-2);
}

.culture-card h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  font-family: var(--font-display);
  line-height: 1.2;
}

.culture-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.75;
  flex: 1;
  max-width: none;
}

.culture-practices {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-2);
}

.culture-practices span {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* ---- MEDIA SECTION ---- */
.media-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.media-row {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-8);
  align-items: center;
  padding: var(--space-8);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.media-row:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.media-thinker {
  margin-bottom: var(--space-1);
}

.media-thinker strong {
  font-size: var(--text-xl);
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--color-text);
  display: block;
}

.media-title {
  font-size: var(--text-lg);
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.media-description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  max-width: 44ch;
}

.media-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.media-tag {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
}

/* Featured stacked row — player on top, info below */
.media-row--stacked {
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.media-player-top {
  order: -1;
}

/* Featured media row */
.media-row--featured {
  border-color: color-mix(in oklch, var(--color-primary) 50%, transparent);
  background: color-mix(in oklab, var(--color-surface-2) 80%, var(--color-primary) 20%);
}

[data-theme="light"] .media-row--featured {
  background: color-mix(in oklab, var(--color-surface-2) 75%, var(--color-primary) 25%);
}

/* Player column */
.media-player-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.media-player-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.media-player-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.media-player-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Native audio player — styled to blend with the palette */
.media-audio {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-md);
  outline: none;
  accent-color: var(--color-primary);
}

/* Light mode: browser default audio player looks fine */
/* Dark mode: force reasonable contrast where supported */
[data-theme="dark"] .media-audio {
  filter: invert(0.85) hue-rotate(160deg) saturate(1.4) brightness(0.95);
}

@media (max-width: 700px) {
  .media-row {
    grid-template-columns: 1fr;
  }
  .media-description {
    max-width: none;
  }
}

/* ---- BIBLIOGRAPHY ---- */
.bibliography-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.bibliography-img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.bibliography-wrap:hover .bibliography-img {
  transform: scale(1.01);
}

/* Bibliography text list */
.biblio-list {
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-divider);
}

.biblio-row {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-4);
  align-items: baseline;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-divider);
  transition: background var(--transition);
}

.biblio-row:hover {
  background: color-mix(in oklab, var(--color-primary-light) 60%, transparent);
  border-radius: var(--radius-md);
  padding-inline: var(--space-3);
}

.biblio-num {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-faint);
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  text-align: right;
}

.biblio-entry {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 var(--space-3);
}

.biblio-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 400;
}

.biblio-author {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.biblio-author::before {
  content: '— ';
  color: var(--color-text-faint);
}

/* ---- BOTTOM DISCLAIMER ---- */
.bottom-disclaimer {
  background: #ffffff;
  border-top: 1px solid #e0e0e0;
  padding-block: var(--space-6);
}

[data-theme="dark"] .bottom-disclaimer {
  background: #ffffff;
}

.bottom-disclaimer p {
  font-size: var(--text-xs);
  line-height: 1.6;
  color: #c0392b;
  max-width: none;
}

/* ---- FOOTER ---- */
.footer {
  padding-block: var(--space-16);
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.footer-text {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
  max-width: 60ch;
}

.footer-credits {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  max-width: 65ch;
}

/* ---- SPECIES × THINKER GRID ---- */
.species-thinker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-5);
}

.st-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.st-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.st-species {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: color-mix(in oklab, var(--color-surface-offset) 80%, var(--color-primary) 20%);
  border-bottom: 1px solid var(--color-divider);
}

[data-theme="light"] .st-species {
  background: color-mix(in oklab, var(--color-surface-2) 70%, var(--color-primary) 30%);
}

.st-emoji {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in oklch, var(--color-primary) 12%, transparent);
  border-radius: var(--radius-md);
}

.st-species-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.2;
}

.st-species-latin {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: 2px;
  font-style: italic;
}

.st-thinker {
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.st-thinker strong {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  display: block;
  font-family: var(--font-body);
}

.st-tradition {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-2);
}

.st-thinker p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: none;
}

/* Featured card (Sahtouris / double-species) */
.st-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 280px 1fr;
  border-color: color-mix(in oklch, var(--color-accent) 60%, transparent);
  background: color-mix(in oklab, var(--color-surface) 85%, var(--color-accent) 15%);
}

[data-theme="light"] .st-card--featured {
  background: color-mix(in oklab, var(--color-surface-2) 80%, var(--color-accent) 20%);
}

.st-card--featured .st-species {
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  border-bottom: none;
  border-right: 1px solid var(--color-divider);
  padding: var(--space-8) var(--space-6);
  background: color-mix(in oklab, var(--color-surface-offset) 70%, var(--color-accent) 30%);
}

[data-theme="light"] .st-card--featured .st-species {
  background: color-mix(in oklab, var(--color-surface-2) 65%, var(--color-accent) 35%);
}

.st-card--featured .st-emoji {
  font-size: 3rem;
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-3);
}

.st-card--featured .st-species-name {
  font-size: var(--text-lg);
}

.st-card--featured .st-thinker p + p {
  margin-top: var(--space-3);
}

.st-species-pair {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}

.st-species-pair span {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}

@media (max-width: 700px) {
  .st-card--featured {
    grid-template-columns: 1fr;
  }
  .st-card--featured .st-species {
    border-right: none;
    border-bottom: 1px solid var(--color-divider);
    flex-direction: row;
    align-items: center;
  }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 600px) {
  .evolution-step {
    grid-template-columns: 1fr;
  }
  .step-icon { width: 40px; height: 40px; }
  .timeline { padding-left: 72px; }
  .timeline::before { left: 44px; }
  .timeline-date { left: -72px; width: 52px; font-size: 0.65rem; }
  .timeline-dot { left: calc(-1 * var(--space-3)); }
  .timeline-highlight .timeline-dot { left: calc(-1 * var(--space-3) - 2px); }
  .section-title { font-size: var(--text-xl); }
  .hero-sub { font-size: var(--text-base); }
}

@media (max-width: 480px) {
  .species-grid, .cultures-grid, .traditions-grid, .species-thinker-grid {
    grid-template-columns: 1fr;
  }
}