/* ==========================================================================
   deplanque.uk: design tokens
   Source of truth: deplanque.uk brand/style guide (M3 adapted).
   Do not invent new colours, type or shape values outside this token set.
   Add new *uses* of these tokens instead.
   ========================================================================== */

:root {
  /* ---- Brand colour palette ---- */
  --color-mandarin:    #D45D24;
  --color-early-green: #4B5B46;
  --color-matte-black: #121212;
  --color-warm-ivory:  #F5F2EC;
  --color-warm-stone:  #D7D2C6;

  /* ---- M3 core colour roles ---- */
  --md-primary:                #D45D24;
  --md-on-primary:              #FFFFFF;
  --md-primary-container:       #FFDDD2;
  --md-on-primary-container:    #7A2E0F;

  --md-secondary:               #4B5B46;
  --md-on-secondary:            #FFFFFF;
  --md-secondary-container:     #DCEBDA;
  --md-on-secondary-container:  #1E2B1C;

  --md-tertiary:                #121212;
  --md-on-tertiary:              #FFFFFF;
  --md-tertiary-container:      #E1E1E1;
  --md-on-tertiary-container:   #2A2A2A;

  --md-error:                   #BA1A1A;
  --md-on-error:                #FFFFFF;
  --md-error-container:         #FFDAD6;
  --md-on-error-container:      #410002;

  --md-surface:                 #F5F2EC;
  --md-surface-container:       #D7D2C6;
  --md-surface-container-low:   #EFEBE2;
  --md-on-surface:              #121212;
  --md-on-surface-variant:      #5A594F;
  --md-outline:                 #7C7A6E;
  --md-outline-variant:         #CBC6B7;

  /* ---- Typography ---- */
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Type scale: size / line-height / letter-spacing (em) */
  --type-display-large-size: clamp(2.75rem, 3rem + 3vw, 3.5625rem);
  --type-display-large-lh: 1.12;
  --type-display-large-ls: -0.25px;

  --type-display-medium-size: clamp(2.25rem, 2.25rem + 2vw, 2.8125rem);
  --type-display-medium-lh: 1.15;

  --type-display-small-size: clamp(1.75rem, 1.75rem + 1.4vw, 2.25rem);
  --type-display-small-lh: 1.22;

  --type-headline-large-size: 2rem;
  --type-headline-large-lh: 1.25;

  --type-headline-medium-size: 1.75rem;
  --type-headline-medium-lh: 1.28;

  --type-title-large-size: 1.375rem;
  --type-title-large-lh: 1.27;
  --type-title-large-ls: 0.15px;

  --type-body-large-size: 1rem;
  --type-body-large-lh: 1.5;
  --type-body-large-ls: 0.5px;

  --type-body-medium-size: 0.875rem;
  --type-body-medium-lh: 1.43;
  --type-body-medium-ls: 0.25px;

  --type-label-large-size: 0.875rem;
  --type-label-large-lh: 1.43;
  --type-label-large-ls: 0.1px;

  --type-label-medium-size: 0.75rem;
  --type-label-medium-lh: 1.33;
  --type-label-medium-ls: 0.5px;

  /* ---- Spacing (8pt grid) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 40px;
  --space-7: 48px;
  --space-8: 56px;
  --space-9: 64px;
  --space-10: 72px;
  --space-11: 80px;
  --space-12: 96px;

  /* ---- Shape (corner radius) ---- */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  /* ---- Elevation (M3 dp scale, warm-toned shadow) ---- */
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(18, 18, 18, 0.06), 0 1px 3px rgba(18, 18, 18, 0.08);
  --elevation-2: 0 1px 2px rgba(18, 18, 18, 0.07), 0 2px 6px rgba(18, 18, 18, 0.09);
  --elevation-3: 0 2px 3px rgba(18, 18, 18, 0.08), 0 4px 10px rgba(18, 18, 18, 0.10);
  --elevation-4: 0 3px 4px rgba(18, 18, 18, 0.09), 0 6px 14px rgba(18, 18, 18, 0.11);
  --elevation-5: 0 4px 5px rgba(18, 18, 18, 0.10), 0 8px 20px rgba(18, 18, 18, 0.13);

  --content-max-width: 1180px;
  --article-max-width: 700px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --md-surface:               #17170F;
    --md-surface-container:     #232219;
    --md-surface-container-low: #1D1C14;
    --md-on-surface:            #F1EEE4;
    --md-on-surface-variant:    #C9C6B8;
    --md-outline:               #8C8A7C;
    --md-outline-variant:       #4A4938;
    --md-primary-container:     #5C2A12;
    --md-on-primary-container:  #FFDDD2;
    --md-secondary-container:   #2A3627;
    --md-on-secondary-container: #DCEBDA;
    --md-tertiary-container:    #2A2A2A;
    --md-on-tertiary-container: #E1E1E1;
  }
}

/* ==========================================================================
   Reset & base
   ========================================================================== */

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: var(--font-body);
  font-size: var(--type-body-large-size);
  line-height: var(--type-body-large-lh);
  letter-spacing: var(--type-body-large-ls);
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Paper grain: a personal/editorial site should feel a little tactile,
   not screen-flat. Pure CSS, no image request, ignorable by prefers-reduced-motion
   users (it's static, not animated, so it stays either way). */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header, main, .site-footer { position: relative; z-index: 1; }

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration-color: var(--md-outline-variant); }

:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--md-primary);
  color: var(--md-on-primary);
  padding: var(--space-2) var(--space-3);
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ==========================================================================
   Layout shell
   ========================================================================== */

.site-shell {
  width: min(var(--content-max-width), calc(100% - 80px));
  margin: 0 auto;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  margin: 0;
  color: var(--md-on-surface);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--md-primary);
  font-family: var(--font-body);
  font-size: var(--type-label-large-size);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--md-secondary);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--md-secondary);
  font-family: var(--font-body);
  font-size: var(--type-label-medium-size);
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.section-label::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--md-primary);
}

/* ==========================================================================
   Header / navigation
   ========================================================================== */

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  border-bottom: 1px solid var(--md-outline-variant);
}

.wordmark {
  text-decoration: none;
  font-family: var(--font-body);
  font-size: var(--type-label-large-size);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: var(--space-2) 0;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.primary-nav a {
  text-decoration: none;
  padding: 10px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--type-label-large-size);
  font-weight: 600;
  color: var(--md-on-surface);
}
.primary-nav a:hover,
.primary-nav a:focus-visible {
  background: var(--md-surface-container);
  outline: none;
}
.primary-nav a[aria-current="page"] {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--md-on-surface);
}
.nav-toggle:hover { background: var(--md-surface-container); }

/* ==========================================================================
   Buttons (M3)
   ========================================================================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 21px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: var(--type-label-large-size);
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(0); }

.button-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--elevation-1);
}
.button-primary:hover { box-shadow: var(--elevation-2); }

.button-secondary {
  background: transparent;
  color: var(--md-on-surface);
  border-color: var(--md-outline);
}
.button-secondary:hover { background: var(--md-surface-container); }

.button-tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.button-text {
  background: transparent;
  color: var(--md-primary);
  padding: 0 var(--space-2);
  min-height: auto;
}
.button-text:hover { text-decoration: underline; }

/* ==========================================================================
   Chips / filters
   ========================================================================== */

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid var(--md-outline-variant);
  background: transparent;
  color: var(--md-on-surface-variant);
  font-family: var(--font-body);
  font-size: var(--type-label-large-size);
  font-weight: 600;
  cursor: pointer;
}
.chip:hover { background: var(--md-surface-container); }
.chip[aria-pressed="true"] {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-color: transparent;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  font-size: var(--type-label-medium-size);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--md-secondary);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding: var(--space-11) 0 var(--space-9);
  max-width: 920px;
  isolation: isolate;
}

/* Soft, hand-placed colour washes behind the headline, the kind of
   imperfect warmth a flat corporate hero never has. */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(46px);
  opacity: 0.55;
}
.hero::before {
  width: 340px;
  height: 340px;
  top: -60px;
  right: -40px;
  background: var(--md-primary-container);
}
.hero::after {
  width: 220px;
  height: 220px;
  top: 160px;
  right: 220px;
  background: var(--md-secondary-container);
  opacity: 0.4;
}

.hero h1 {
  font-size: var(--type-display-large-size);
  line-height: var(--type-display-large-lh);
  letter-spacing: -0.02em;
  margin-top: var(--space-4);
}

.hero h1 .ink {
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: var(--md-primary);
  text-decoration-thickness: 3px;
  text-underline-offset: 10px;
}

.hero p {
  max-width: 680px;
  margin: var(--space-5) 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.4vw + 1rem, 1.5rem);
  line-height: 1.4;
  color: var(--md-on-surface-variant);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* ==========================================================================
   Sections
   ========================================================================== */

section.page-section {
  padding: var(--space-11) 0;
  border-top: 1px solid var(--md-outline-variant);
}

/* A tinted, full-bleed break in the rhythm, stops every section reading
   as the same ivory card stacked forever. */
section.page-section.tinted {
  background: var(--md-surface-container-low);
  border-top: none;
}
section.page-section.tinted + section.page-section { border-top: none; }

.section-intro {
  max-width: 700px;
  margin: var(--space-3) 0 0;
  color: var(--md-on-surface-variant);
  font-size: 1.125rem;
}

.page-section h2 {
  font-size: var(--type-display-small-size);
  line-height: var(--type-display-small-lh);
  letter-spacing: -0.02em;
}

/* About page: numbered narrative sections (echoes the theme-card numbering)
   and a larger, editorial closing pull-quote. */
.about-copy { max-width: 700px; }
.about-copy p { margin: 0 0 var(--space-4); }
.about-copy p:last-child { margin-bottom: 0; }

.about-closing {
  max-width: 780px;
  font-size: clamp(1.5rem, 1vw + 1.3rem, 2rem);
  margin: var(--space-4) 0 !important;
}

/* ==========================================================================
   Contact form + social links
   ========================================================================== */

.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-9);
  align-items: start;
  margin-top: var(--space-6);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 480px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.field label {
  font-size: var(--type-label-medium-size);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--md-on-surface-variant);
}

.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: var(--type-body-large-size);
  color: var(--md-on-surface);
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  resize: vertical;
}
.field input:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 1px;
  border-color: var(--md-primary);
}

.form-status {
  margin: 0;
  font-size: var(--type-body-medium-size);
  min-height: 1.2em;
}
.form-status[data-state="success"] { color: var(--md-secondary); }
.form-status[data-state="error"] { color: var(--md-error); }

.social-panel {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--md-surface-container-low);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  font-weight: 600;
  color: var(--md-on-surface);
  padding: var(--space-2) 0;
}
.social-link:hover { color: var(--md-primary); }
.social-link svg { flex-shrink: 0; color: var(--md-secondary); }
.social-link:hover svg { color: var(--md-primary); }

.site-footer .social-links {
  flex-direction: row;
  gap: var(--space-3);
  margin-top: 0;
}
.site-footer .social-link { padding: 0; font-size: var(--type-body-medium-size); }

/* ==========================================================================
   Article cards / grid
   ========================================================================== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.card-grid.list-layout {
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

/* Featured grid (home): the first idea breaks the grid instead of sitting
   in an identical tile, an editorial "lead story" rather than a SaaS
   feature-card row. */
.card-grid.feature-grid {
  grid-template-columns: repeat(2, 1fr);
  align-items: stretch;
}
.card-grid.feature-grid > a:first-child {
  grid-column: span 2;
  grid-row: span 1;
  min-height: 260px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}
.card-grid.feature-grid > a:first-child h3 {
  font-family: var(--font-display);
  font-size: var(--type-headline-large-size);
}
.card-grid.feature-grid > a:first-child .card-excerpt,
.card-grid.feature-grid > a:first-child .card-meta,
.card-grid.feature-grid > a:first-child .category-tag {
  color: var(--md-on-primary-container);
}
.card-grid.feature-grid > a:first-child .category-tag { opacity: 0.85; }

.article-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 200px;
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  border-left: 3px solid var(--card-accent, var(--md-outline-variant));
  background: var(--md-surface-container-low);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}
.article-card:hover,
.article-card:focus-visible {
  box-shadow: var(--elevation-3);
  transform: translateY(-3px) rotate(-0.4deg);
}

/* A little personality per theme, not a uniform grey grid, matched to
   the categories that already exist on the site. New categories fall
   back to the neutral outline colour above until given their own tone. */
.article-card[data-category="Revenue"]      { --card-accent: var(--md-primary); }
.article-card[data-category="Enablement"]   { --card-accent: var(--md-secondary); }
.article-card[data-category="AI"]           { --card-accent: var(--md-tertiary); }
.article-card[data-category="Execution"]    { --card-accent: var(--md-on-primary-container); }
.article-card[data-category="Organisations"]{ --card-accent: var(--md-outline); }

.article-card .card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.article-card .card-meta {
  font-size: var(--type-label-medium-size);
  color: var(--md-on-surface-variant);
}

.article-card h3 {
  font-size: var(--type-headline-medium-size);
  line-height: 1.15;
  margin-top: var(--space-2);
}

.article-card .card-excerpt {
  color: var(--md-on-surface-variant);
  font-size: var(--type-body-medium-size);
  margin: 0;
}

.article-card .card-image {
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--md-surface-container);
}

/* Ideas index: list layout gets a horizontal rule pattern instead of tiles.
   Given more room per entry than the default grid gap, since this is the
   page meant to be lingered on. */
.card-grid.list-layout { gap: var(--space-4); }

.list-layout .article-card {
  flex-direction: row;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-6);
  background: transparent;
  border-radius: 0;
  border-bottom: 1px solid var(--md-outline-variant);
  padding: var(--space-6) 0 var(--space-6) var(--space-4);
  min-height: auto;
}
.list-layout .article-card:hover {
  transform: none;
  box-shadow: none;
  background: var(--md-surface-container-low);
}
.article-card[hidden] { display: none; }
.list-layout .card-body { flex: 1; }
.list-layout .card-body h3 { margin-top: var(--space-2); }
.list-layout .card-excerpt { margin-top: var(--space-2); max-width: 640px; }
.list-layout .card-meta-right {
  flex-shrink: 0;
  text-align: right;
  color: var(--md-on-surface-variant);
  font-size: var(--type-label-medium-size);
}

/* ==========================================================================
   Themes grid (home)
   ========================================================================== */

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.theme-card {
  min-height: 172px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--md-surface-container-low);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.theme-card:nth-child(even) {
  background: var(--md-secondary-container);
  border-radius: var(--radius-xl) var(--radius-sm) var(--radius-xl) var(--radius-sm);
}
.theme-card:nth-child(odd) {
  border-radius: var(--radius-sm) var(--radius-xl) var(--radius-sm) var(--radius-xl);
}
.theme-card:hover {
  transform: translateY(-3px) rotate(0.6deg);
  box-shadow: var(--elevation-2);
}
.theme-card:nth-child(even):hover { transform: translateY(-3px) rotate(-0.6deg); }

.theme-card .card-number {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--md-primary);
}
.theme-card:nth-child(even) .card-number { color: var(--md-on-secondary-container); opacity: 0.6; }

.theme-card h3 {
  margin-top: var(--space-4);
  font-size: var(--type-title-large-size);
  letter-spacing: var(--type-title-large-ls);
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--md-secondary);
}
.theme-card:nth-child(even) h3 { color: var(--md-on-secondary-container); }

.theme-card p {
  margin: var(--space-2) 0 0;
  color: var(--md-on-surface-variant);
  font-size: var(--type-body-medium-size);
}
.theme-card:nth-child(even) p { color: var(--md-on-secondary-container); opacity: 0.85; }

/* ==========================================================================
   About teaser (home) / contact block
   ========================================================================== */

.teaser-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-9);
  align-items: center;
}

.teaser-grid .teaser-copy {
  font-family: var(--font-display);
  font-size: 1.375rem;
  line-height: 1.4;
  color: var(--md-on-surface-variant);
}

/* ==========================================================================
   Article page
   ========================================================================== */

.article-header {
  padding: var(--space-9) 0 var(--space-6);
  max-width: var(--article-max-width);
  margin: 0 auto;
}

.article-header h1 {
  font-size: var(--type-display-medium-size);
  line-height: var(--type-display-medium-lh);
  letter-spacing: -0.02em;
  margin-top: var(--space-3);
}

.article-dek {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--md-on-surface-variant);
  margin-top: var(--space-3);
}

.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
  color: var(--md-on-surface-variant);
  font-size: var(--type-label-medium-size);
}

.article-hero-image {
  width: 100%;
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--md-surface-container);
  margin: var(--space-6) 0;
}

.article-body {
  max-width: var(--article-max-width);
  margin: 0 auto;
  padding-bottom: var(--space-9);
}

.article-body h2 {
  font-size: var(--type-headline-large-size);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.article-body h3 {
  font-size: var(--type-title-large-size);
  font-family: var(--font-body);
  font-weight: 700;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.article-body p {
  margin: 0 0 var(--space-4);
  font-size: 1.0625rem;
}

.article-body ul, .article-body ol {
  margin: 0 0 var(--space-4);
  padding-left: 1.3em;
}
.article-body li { margin-bottom: var(--space-2); }

.article-body a { color: var(--md-primary); text-decoration-line: underline; }

.article-body blockquote,
.pull-quote {
  position: relative;
  margin: var(--space-7) 0;
  padding: var(--space-2) var(--space-6) var(--space-3);
  font-family: var(--font-display);
  font-size: 1.625rem;
  line-height: 1.35;
  color: var(--md-on-surface);
  background: none;
  border: none;
}
.article-body blockquote p,
.pull-quote p { margin: 0; }
.article-body blockquote::before,
.pull-quote::before {
  content: '\201C';
  position: absolute;
  top: -0.5rem;
  left: -0.15em;
  font-family: var(--font-display);
  font-size: 4.5rem;
  line-height: 1;
  color: var(--md-primary);
  opacity: 0.35;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 var(--space-5);
  font-size: var(--type-body-medium-size);
}
.article-body th, .article-body td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--md-outline-variant);
}
.article-body th { color: var(--md-secondary); font-weight: 700; }

.framework-block {
  position: relative;
  margin: var(--space-7) 0;
  padding: var(--space-5) var(--space-5) var(--space-5) var(--space-6);
  border-radius: var(--radius-sm) var(--radius-lg) var(--radius-lg) var(--radius-lg);
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  transform: rotate(-0.3deg);
}
.framework-block::before {
  content: '';
  position: absolute;
  left: 0; top: var(--space-3); bottom: var(--space-3);
  width: 4px;
  border-radius: var(--radius-xs);
  background: var(--md-secondary);
}
.framework-block h3 { margin-top: 0; color: inherit; font-family: var(--font-body); }

.article-footer-nav {
  max-width: var(--article-max-width);
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-9);
  border-top: 1px solid var(--md-outline-variant);
}

.article-nav-links {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-4);
}
.article-nav-links a {
  text-decoration: none;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--md-surface-container-low);
  flex: 1;
}
.article-nav-links a:hover { background: var(--md-surface-container); }
.article-nav-links .nav-label {
  display: block;
  font-size: var(--type-label-medium-size);
  color: var(--md-on-surface-variant);
  margin-bottom: 4px;
}

.related-grid {
  margin-top: var(--space-4);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: var(--space-8) 0 var(--space-8);
  border-top: 1px solid var(--md-outline-variant);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--md-on-surface-variant);
  font-size: var(--type-body-medium-size);
}

.site-footer .footer-note strong {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--md-on-surface);
  margin-bottom: var(--space-2);
}

.site-footer .footer-note { max-width: 480px; }

.site-footer nav {
  display: flex;
  gap: var(--space-4);
}
.site-footer nav a { text-decoration: none; }
.site-footer nav a:hover { color: var(--md-primary); }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 760px) {
  .site-shell { width: min(1180px, calc(100% - 28px)); }

  .nav-toggle { display: inline-flex; }

  .primary-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--md-surface);
    border-bottom: 1px solid var(--md-outline-variant);
    box-shadow: var(--elevation-2);
    padding: var(--space-2) var(--space-4) var(--space-4);
    z-index: 50;
  }
  .primary-nav a { padding: var(--space-3) var(--space-2); border-radius: var(--radius-sm); }
  .primary-nav.is-open { display: flex; }

  .site-header { position: relative; min-height: 68px; }

  .hero { padding: var(--space-8) 0 var(--space-8); }

  section.page-section { padding: var(--space-8) 0; }

  .card-grid,
  .card-grid.feature-grid { grid-template-columns: 1fr; }
  .card-grid.feature-grid > a:first-child { grid-column: span 1; min-height: 200px; }

  .teaser-grid,
  .contact-layout { grid-template-columns: 1fr; gap: var(--space-5); }

  .article-nav-links { flex-direction: column; }

  .site-footer { flex-direction: column; }
}