/* style.css — Koffie Wereldwijd design system + components */

/* ============ FONTS ============ */
:root {
  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body: 'Work Sans', 'Helvetica Neue', sans-serif;
}

/* ============ TYPE SCALE ============ */
: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(2.75rem, 0.5rem + 6.5vw, 7rem);
}

/* ============ SPACING (4px system) ============ */
:root {
  --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;
}

/* ============ COLOR — warm coffee palette (OKLCH) ============ */
:root,
[data-theme='light'] {
  /* Surfaces: warm beige/cream */
  --color-bg: oklch(0.96 0.014 75);
  --color-surface: oklch(0.98 0.01 75);
  --color-surface-2: oklch(0.99 0.006 75);
  --color-surface-offset: oklch(0.93 0.018 70);
  --color-surface-offset-2: oklch(0.9 0.022 65);
  --color-surface-dynamic: oklch(0.87 0.025 60);
  --color-divider: oklch(0.85 0.02 60);
  --color-border: oklch(0.8 0.025 55);

  /* Text: roast-brown */
  --color-text: oklch(0.26 0.045 40);
  --color-text-muted: oklch(0.46 0.035 40);
  --color-text-faint: oklch(0.65 0.025 45);
  --color-text-inverse: oklch(0.97 0.012 75);

  /* Primary: terracotta / roasted-copper */
  --color-primary: oklch(0.55 0.16 40);
  --color-primary-hover: oklch(0.47 0.16 38);
  --color-primary-active: oklch(0.4 0.15 36);
  --color-primary-highlight: oklch(0.9 0.05 45);

  /* Secondary: sage green (climate pages only) */
  --color-sage: oklch(0.56 0.08 145);
  --color-sage-hover: oklch(0.47 0.08 145);
  --color-sage-active: oklch(0.4 0.08 145);
  --color-sage-highlight: oklch(0.9 0.04 140);

  /* Warning / roast-gold accent for callouts */
  --color-gold: oklch(0.68 0.13 70);
  --color-gold-highlight: oklch(0.92 0.04 75);

  /* Error */
  --color-error: oklch(0.5 0.18 25);
  --color-error-highlight: oklch(0.9 0.05 25);

  /* Success (shares sage feel but distinct role) */
  --color-success: oklch(0.5 0.1 145);
  --color-success-highlight: oklch(0.9 0.04 140);

  /* Chart categorical sequence — derived from coffee palette */
  --chart-1: oklch(0.55 0.16 40); /* terracotta */
  --chart-2: oklch(0.62 0.1 145); /* sage */
  --chart-3: oklch(0.68 0.13 70); /* roast gold */
  --chart-4: oklch(0.48 0.09 30); /* deep roast brown */
  --chart-5: oklch(0.72 0.1 95); /* warm tan */
  --chart-6: oklch(0.42 0.07 195); /* muted teal (contrast note) */

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-sm: 0 1px 2px oklch(0.3 0.05 40 / 0.08);
  --shadow-md: 0 4px 14px oklch(0.3 0.05 40 / 0.12);
  --shadow-lg: 0 16px 40px oklch(0.3 0.05 40 / 0.18);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

[data-theme='dark'] {
  --color-bg: oklch(0.19 0.018 40);
  --color-surface: oklch(0.22 0.02 40);
  --color-surface-2: oklch(0.25 0.022 40);
  --color-surface-offset: oklch(0.16 0.016 38);
  --color-surface-offset-2: oklch(0.28 0.025 42);
  --color-surface-dynamic: oklch(0.32 0.03 42);
  --color-divider: oklch(0.33 0.025 40);
  --color-border: oklch(0.38 0.03 42);

  --color-text: oklch(0.92 0.014 70);
  --color-text-muted: oklch(0.72 0.02 60);
  --color-text-faint: oklch(0.52 0.02 55);
  --color-text-inverse: oklch(0.22 0.02 40);

  --color-primary: oklch(0.68 0.15 42);
  --color-primary-hover: oklch(0.76 0.14 45);
  --color-primary-active: oklch(0.82 0.12 48);
  --color-primary-highlight: oklch(0.32 0.06 42);

  --color-sage: oklch(0.68 0.1 145);
  --color-sage-hover: oklch(0.75 0.1 145);
  --color-sage-active: oklch(0.8 0.09 145);
  --color-sage-highlight: oklch(0.3 0.05 145);

  --color-gold: oklch(0.75 0.13 72);
  --color-gold-highlight: oklch(0.32 0.06 72);

  --color-error: oklch(0.66 0.17 25);
  --color-error-highlight: oklch(0.32 0.07 25);

  --color-success: oklch(0.65 0.1 145);
  --color-success-highlight: oklch(0.3 0.05 145);

  --chart-1: oklch(0.68 0.15 42);
  --chart-2: oklch(0.68 0.1 145);
  --chart-3: oklch(0.75 0.13 72);
  --chart-4: oklch(0.6 0.09 30);
  --chart-5: oklch(0.78 0.1 95);
  --chart-6: oklch(0.6 0.08 195);

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 14px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: oklch(0.19 0.018 40);
    --color-surface: oklch(0.22 0.02 40);
    --color-surface-2: oklch(0.25 0.022 40);
    --color-surface-offset: oklch(0.16 0.016 38);
    --color-surface-offset-2: oklch(0.28 0.025 42);
    --color-surface-dynamic: oklch(0.32 0.03 42);
    --color-divider: oklch(0.33 0.025 40);
    --color-border: oklch(0.38 0.03 42);
    --color-text: oklch(0.92 0.014 70);
    --color-text-muted: oklch(0.72 0.02 60);
    --color-text-faint: oklch(0.52 0.02 55);
    --color-text-inverse: oklch(0.22 0.02 40);
    --color-primary: oklch(0.68 0.15 42);
    --color-primary-hover: oklch(0.76 0.14 45);
    --color-primary-active: oklch(0.82 0.12 48);
    --color-primary-highlight: oklch(0.32 0.06 42);
    --color-sage: oklch(0.68 0.1 145);
    --color-sage-highlight: oklch(0.3 0.05 145);
    --color-gold: oklch(0.75 0.13 72);
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
    --shadow-md: 0 4px 14px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
  }
}

/* ============ LAYOUT PRIMITIVES ============ */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-10));
}

.container--narrow {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-12), 7vw, var(--space-24));
}

.grain-texture {
  background-image:
    radial-gradient(oklch(0.5 0.05 40 / 0.04) 1px, transparent 1px);
  background-size: 3px 3px;
}

/* ============ SKIP LINK ============ */
.skip-link {
  position: absolute;
  left: -999px;
  top: var(--space-2);
  z-index: 100;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}
.skip-link:focus {
  left: var(--space-2);
}

/* ============ HEADER / NAV ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.3s var(--ease-in-out),
    box-shadow 0.3s var(--ease-in-out);
}
.site-header--hidden {
  transform: translateY(-100%);
}
.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  flex-shrink: 0;
}
.brand svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.main-nav ul {
  display: flex;
  gap: var(--space-1);
  align-items: center;
}
.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
}
.main-nav a:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}
.main-nav a[aria-current='page'] {
  color: var(--color-primary);
  background: var(--color-primary-highlight);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
}
.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    inset: 64px var(--space-4) auto var(--space-4);
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity 0.2s var(--ease-out),
      transform 0.2s var(--ease-out),
      visibility 0.2s;
  }
  .main-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .main-nav ul {
    flex-direction: column;
    width: 100%;
    gap: var(--space-1);
  }
  .main-nav a {
    width: 100%;
    padding: var(--space-3);
  }
  .nav-toggle {
    display: inline-flex;
  }
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn--primary:active {
  transform: translateY(0);
  background: var(--color-primary-active);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-highlight);
}

/* Ghost button on dark hero imagery needs light text + border for contrast */
.hero .btn--ghost {
  color: oklch(0.97 0.01 70);
  border-color: oklch(0.97 0.01 70 / 0.55);
}
.hero .btn--ghost:hover {
  color: oklch(0.15 0.02 40);
  background: oklch(0.97 0.01 70);
  border-color: oklch(0.97 0.01 70);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    oklch(0.18 0.03 40 / 0.92) 0%,
    oklch(0.2 0.03 40 / 0.55) 45%,
    oklch(0.22 0.03 40 / 0.15) 100%
  );
}
.hero__content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-16) var(--space-16);
  color: oklch(0.97 0.01 70);
  max-width: 900px;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: oklch(0.85 0.06 60);
  margin-bottom: var(--space-4);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 500;
  line-height: 1.02;
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 24px oklch(0.1 0.02 40 / 0.4);
}
.hero p {
  font-size: var(--text-lg);
  max-width: 640px;
  color: oklch(0.94 0.014 70);
  margin-bottom: var(--space-8);
}
.hero__cta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* ============ SECTION HEADINGS ============ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.eyebrow--sage {
  color: var(--color-sage);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  line-height: 1.08;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}
.section-lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 68ch;
}
.page-header {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24)) var(--space-10);
  border-bottom: 1px solid var(--color-divider);
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-bottom: var(--space-4);
  max-width: 20ch;
}
.page-header p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 68ch;
}

/* ============ STAT CALLOUTS ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}
.stat-card__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums lining-nums;
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat-card__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ============ CARDS / LINK GRID ============ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}
.nav-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition:
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive),
    border-color var(--transition-interactive);
}
.nav-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.nav-card:active {
  transform: translateY(-1px);
}
.nav-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-surface-offset);
}
.nav-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease-out);
}
.nav-card:hover .nav-card__media img {
  transform: scale(1.05);
}
.nav-card__body {
  padding: var(--space-5) var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}
.nav-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
}
.nav-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  flex: 1;
}
.nav-card__link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
}
.nav-card__link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-interactive);
}
.nav-card:hover .nav-card__link svg {
  transform: translateX(3px);
}

/* ============ BEAN COMPARISON CARDS ============ */
.bean-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}
.bean-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.bean-card__media {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--color-surface-offset);
}
.bean-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.bean-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.bean-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.bean-card__latin {
  font-size: var(--text-xs);
  font-style: italic;
  color: var(--color-text-faint);
  font-weight: 400;
}
.bean-card__share {
  display: inline-flex;
  align-self: flex-start;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
}
.bean-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.bean-card__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
}
.bean-card__meta-item dt {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-1);
}
.bean-card__meta-item dd {
  font-size: var(--text-sm);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ============ COMPARISON TABLE ============ */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.compare-table {
  min-width: 640px;
  background: var(--color-surface);
}
.compare-table th,
.compare-table td {
  text-align: left;
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-divider);
}
.compare-table thead th {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 500;
  background: var(--color-surface-offset);
  position: sticky;
  top: 0;
}
.compare-table tbody th {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}
.compare-table tbody tr:last-child td,
.compare-table tbody tr:last-child th {
  border-bottom: none;
}
.compare-table td {
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* ============ REGION SECTIONS (herkomst.html) ============ */
.region-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  padding-block: clamp(var(--space-10), 6vw, var(--space-16));
  border-bottom: 1px solid var(--color-divider);
}
.region-block:last-child {
  border-bottom: none;
}
.region-block--reverse .region-block__media {
  order: 2;
}
.region-block__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/3;
  background: var(--color-surface-offset);
}
.region-block__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.region-block__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.region-block__text {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}
.country-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.country-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

@media (max-width: 780px) {
  .region-block,
  .region-block--reverse {
    grid-template-columns: 1fr;
  }
  .region-block--reverse .region-block__media {
    order: 0;
  }
}

/* ============ COFFEE BELT BAND ============ */
.belt-diagram {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(
    to bottom,
    var(--color-surface-offset) 0%,
    var(--color-primary-highlight) 38%,
    var(--color-primary-highlight) 62%,
    var(--color-surface-offset) 100%
  );
  padding: var(--space-10) var(--space-6);
  text-align: center;
  border: 1px solid var(--color-border);
}
.belt-diagram__line {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-block: var(--space-2);
}
.belt-diagram__band {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
  font-weight: 500;
}

/* ============ CHART SECTIONS ============ */
.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(420px, 100%), 1fr));
  gap: var(--space-8);
}
.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.chart-card__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.chart-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
}
.chart-card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.chart-card__canvas-wrap {
  position: relative;
  height: 320px;
  width: 100%;
}
.chart-card__note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-4);
}
.chart-card--wide {
  grid-column: 1 / -1;
}
.chart-card--wide .chart-card__canvas-wrap {
  height: 380px;
}

@media (max-width: 640px) {
  .chart-card__canvas-wrap {
    height: 260px;
  }
  .chart-card--wide .chart-card__canvas-wrap {
    height: 300px;
  }
}

/* ============ PULL QUOTE / CALLOUT ============ */
.callout {
  background: var(--color-primary-highlight);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-8);
  font-size: var(--text-lg);
  font-family: var(--font-display);
  color: var(--color-text);
  margin-block: var(--space-8);
}
.callout--sage {
  background: var(--color-sage-highlight);
  border-left-color: var(--color-sage);
}
.callout cite {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-style: normal;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

/* ============ CLIMATE PAGE SPECIFIC ============ */
.climate-fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}
.climate-fact {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-sage);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-sm);
}
.climate-fact__value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-sage);
  font-weight: 500;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.climate-fact__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============ FULL-BLEED IMAGE ============ */
.full-bleed {
  width: 100%;
  aspect-ratio: 16/6;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-block: var(--space-10);
  background: var(--color-surface-offset);
}
.full-bleed img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 640px) {
  .full-bleed {
    aspect-ratio: 4/3;
  }
}

/* ============ FOOTER ============ */
.site-footer {
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface-offset);
  padding-block: var(--space-16) var(--space-10);
  margin-top: var(--space-16);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.footer-brand svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}
.footer-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 40ch;
}
.footer-col h3 {
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}
.footer-col a:hover {
  color: var(--color-primary);
}
.footer-sources {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-8);
}
.footer-sources h3 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
  font-weight: 700;
}
.source-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.source-list a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 2px;
}
.source-list a:hover {
  color: var(--color-primary);
  text-decoration-color: var(--color-primary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-8);
}

@media (max-width: 780px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* ============ SCROLL REVEAL ============ */
.reveal {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .reveal {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 45%;
  }
}
@keyframes reveal-fade {
  to {
    opacity: 1;
  }
}

/* ============ UTILITY ============ */
.text-muted {
  color: var(--color-text-muted);
}
.mt-8 {
  margin-top: var(--space-8);
}
.prose p + p {
  margin-top: var(--space-4);
}
.prose {
  max-width: 72ch;
}