/* ============================================================
   MMC News — Claude-inspired Editorial Design System
   Reference: DESIGN.md (Anthropic / Claude warm-canvas spec)

   Palette:  cream canvas + coral CTA + dark navy surfaces.
   Type:     Cormorant Garamond / EB Garamond (display serif,
             Copernicus substitute) + Inter (body sans, StyreneB
             substitute) + JetBrains Mono (code).
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600&family=EB+Garamond:wght@400;500;600&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&family=Noto+Serif+SC:wght@400;500;600&family=Noto+Sans+SC:wght@400;500;600&display=swap');

:root {
  /* ------- Colors (light / cream) ------- */
  --color-primary: #cc785c;
  --color-primary-active: #a9583e;
  --color-primary-disabled: #e6dfd8;
  --color-ink: #141413;
  --color-body-strong: #252523;
  --color-body: #3d3d3a;
  --color-muted: #6c6a64;
  --color-muted-soft: #8e8b82;
  --color-hairline: #e6dfd8;
  --color-hairline-soft: #ebe6df;
  --color-canvas: #faf9f5;
  --color-surface-soft: #f5f0e8;
  --color-surface-card: #efe9de;
  --color-surface-cream-strong: #e8e0d2;
  --color-surface-dark: #181715;
  --color-surface-dark-elevated: #252320;
  --color-surface-dark-soft: #1f1e1b;
  --color-on-primary: #ffffff;
  --color-on-dark: #faf9f5;
  --color-on-dark-soft: #a09d96;
  --color-accent-teal: #5db8a6;
  --color-accent-amber: #e8a55a;
  --color-success: #5db872;
  --color-warning: #d4a017;
  --color-error: #c64545;

  /* Aliases for legacy class hooks */
  --accent: var(--color-primary);
  --accent-hover: var(--color-primary-active);
  --text-primary: var(--color-ink);
  --text-secondary: var(--color-body);
  --text-tertiary: var(--color-muted);
  --bg-canvas: var(--color-canvas);

  /* ------- Typography ------- */
  --font-display: "Cormorant Garamond", "EB Garamond", "Noto Serif SC",
                  "Tiempos Headline", Garamond, "Times New Roman", serif;
  --font-body: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* ------- Spacing (4px base) ------- */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-section: 96px;

  /* Aliases (legacy hooks) */
  --spacing-xs: var(--space-xs);
  --spacing-sm: var(--space-sm);
  --spacing-md: var(--space-md);
  --spacing-lg: var(--space-lg);
  --spacing-xl: var(--space-xl);
  --spacing-2xl: var(--space-xxl);
  --spacing-3xl: 64px;
  --spacing-4xl: var(--space-section);

  /* ------- Radii ------- */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 9999px;
  --radius-sm: var(--r-md);
  --radius-md: var(--r-lg);
  --radius-lg: var(--r-xl);
  --radius-pill: var(--r-pill);

  /* ------- Motion ------- */
  --t-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --t-med:  0.32s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 0.6s  cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: var(--t-fast);
  --transition-medium: var(--t-med);
  --transition-slow: var(--t-slow);

  /* ------- Surfaces / shadows ------- */
  --shadow-soft: 0 1px 2px rgba(20, 20, 19, 0.04);
  --shadow-hover: 0 1px 3px rgba(20, 20, 19, 0.08), 0 8px 24px rgba(20, 20, 19, 0.06);
  --shadow-dark-soft: 0 1px 2px rgba(0, 0, 0, 0.25);
  --focus-ring: rgba(204, 120, 92, 0.32);

  /* ------- Nav ------- */
  --nav-height: 64px;
  --nav-height-compact: 56px;
  --nav-bg: rgba(250, 249, 245, 0.86);
  --nav-border: var(--color-hairline);

  color-scheme: light;
}

/* Dark theme — invert canvas → dark navy, keep coral, lighten surfaces. */
[data-theme="dark"] {
  --color-ink: #faf9f5;
  --color-body-strong: #ebe6df;
  --color-body: #c8c5be;
  --color-muted: #a09d96;
  --color-muted-soft: #6c6a64;
  --color-hairline: #2c2a26;
  --color-hairline-soft: #232220;
  --color-canvas: #141413;
  --color-surface-soft: #1c1b18;
  --color-surface-card: #1f1e1b;
  --color-surface-cream-strong: #252320;
  --color-surface-dark: #0e0d0c;
  --color-surface-dark-elevated: #1f1e1b;
  --color-surface-dark-soft: #181715;
  --color-on-dark: #faf9f5;
  --color-on-dark-soft: #a09d96;

  --text-primary: var(--color-ink);
  --text-secondary: var(--color-body);
  --text-tertiary: var(--color-muted);
  --bg-canvas: var(--color-canvas);

  --nav-bg: rgba(20, 20, 19, 0.86);
  --nav-border: var(--color-hairline);

  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 1px 3px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.35);

  color-scheme: dark;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--color-canvas);
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-body);
  background: var(--color-canvas);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color var(--t-med), color var(--t-med);
}

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

::selection {
  background: rgba(204, 120, 92, 0.22);
  color: var(--color-ink);
}

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

/* ============================================================
   Typography (display = Copernicus serif substitute)
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.4rem, 5.4vw, 4rem);  /* display-xl 64px */
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 500;
}

h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);  /* display-lg 48px */
  line-height: 1.1;
  letter-spacing: -0.022em;
  font-weight: 500;
}

h3 {
  font-size: clamp(1.4rem, 2.4vw, 1.8rem); /* display-md ~28px */
  line-height: 1.2;
  letter-spacing: -0.018em;
  font-weight: 500;
}

h4 {
  font-size: 1.25rem;
  line-height: 1.3;
  font-weight: 500;
}

p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-body);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast), background var(--t-fast),
              opacity var(--t-fast), transform var(--t-fast);
}

/* Inline coral text-link inside body content */
.article-content a,
.text-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: rgba(204, 120, 92, 0.42);
  text-underline-offset: 3px;
}
.article-content a:hover,
.text-link:hover {
  color: var(--color-primary-active);
  text-decoration-color: var(--color-primary-active);
}

/* Small reusable utilities */
.eyebrow,
.caption-uppercase {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.serif { font-family: var(--font-display); }
.sans  { font-family: var(--font-body); }

/* ============================================================
   Top navigation — cream bar, spike-mark + wordmark
   ============================================================ */
nav,
.nav-global {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  z-index: 9999;
  transition: height var(--t-med), background-color var(--t-med),
              border-color var(--t-med), box-shadow var(--t-med);
}

.is-scrolled nav,
.is-scrolled .nav-global {
  height: var(--nav-height-compact);
  box-shadow: 0 1px 0 var(--color-hairline);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-brand,
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  padding: 4px 8px 4px 4px;
  border-radius: var(--r-md);
  transition: background var(--t-fast), opacity var(--t-fast);
  flex: 0 0 auto;
}

.nav-brand:hover,
.brand:hover {
  background: var(--color-surface-card);
}

/* Spike-mark glyph: replace any nav SVG with the radial asterisk on hover/focus.
   Existing pages still render the legacy SVG; we reskin it so it reads as a
   solid coral mark on cream. */
.nav-logo {
  display: block;
  width: 26px;
  height: 26px;
  color: var(--color-ink);
  flex-shrink: 0;
}

.nav-brand .nav-wordmark,
.brand .nav-wordmark {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  color: var(--color-ink);
}

.nav-menu,
.nav-items {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
  margin-left: auto;
}

.nav-link,
.nav-items li a {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-body);
  padding: 8px 12px;
  border-radius: var(--r-md);
  white-space: nowrap;
  transition: background var(--t-fast), color var(--t-fast);
}

.nav-link:hover,
.nav-items li a:hover {
  background: var(--color-surface-card);
  color: var(--color-ink);
}

.nav-link.active,
.nav-items li a.active {
  background: var(--color-surface-card);
  color: var(--color-ink);
}

/* Theme toggle */
.theme-toggle {
  position: relative;
  flex: 0 0 auto;
  margin-left: 4px;
}

.theme-toggle-button,
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--color-hairline);
  color: var(--color-ink);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: var(--r-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--t-fast), border-color var(--t-fast),
              transform var(--t-fast);
  touch-action: manipulation;
}

.theme-toggle-button:hover,
.theme-toggle-btn:hover {
  background: var(--color-surface-card);
  border-color: var(--color-muted-soft);
}

.theme-toggle-button svg,
.theme-toggle-btn svg {
  width: 16px;
  height: 16px;
  display: block;
}

.theme-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: 6px;
  min-width: 180px;
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--t-fast), transform var(--t-fast),
              visibility var(--t-fast);
  z-index: 10050;
}

.theme-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--r-md);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-body);
  transition: background var(--t-fast), color var(--t-fast);
  border: 1px solid transparent;
}

.theme-option:hover {
  background: var(--color-surface-soft);
  color: var(--color-ink);
}

.theme-option.active {
  background: var(--color-surface-card);
  color: var(--color-ink);
  border-color: var(--color-hairline);
}

.theme-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
}
.theme-icon svg { width: 16px; height: 16px; display: block; }

/* Hamburger */
.nav-hamburger {
  display: none;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--color-hairline);
  background: transparent;
  cursor: pointer;
  position: relative;
  border-radius: var(--r-md);
  transition: background var(--t-fast);
  margin-left: auto;
}
.nav-hamburger:hover { background: var(--color-surface-card); }
.nav-hamburger-line {
  display: block;
  position: absolute;
  left: 9px;
  width: 18px;
  height: 1.6px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--t-fast), opacity var(--t-fast), top var(--t-fast);
}
.nav-hamburger-line:nth-child(1) { top: 11px; }
.nav-hamburger-line:nth-child(2) { top: 17px; }
.nav-hamburger-line:nth-child(3) { top: 23px; }
.nav-hamburger.open .nav-hamburger-line:nth-child(1) { top: 17px; transform: rotate(45deg); }
.nav-hamburger.open .nav-hamburger-line:nth-child(2) { opacity: 0; }
.nav-hamburger.open .nav-hamburger-line:nth-child(3) { top: 17px; transform: rotate(-45deg); }

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--nav-height);
  z-index: 9990;
  background: rgba(20, 20, 19, 0.4);
  opacity: 0;
  transition: opacity var(--t-med);
}
.nav-overlay.active { opacity: 1; }

/* ============================================================
   Main layout
   ============================================================ */
main {
  padding-top: var(--nav-height);
  min-height: 100vh;
}

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

.section--tight {
  padding: var(--space-xxl) 0;
}

.section--cream-card {
  background: var(--color-surface-soft);
}

.section--dark {
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--color-on-dark); }
.section--dark p  { color: var(--color-on-dark-soft); }

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  max-width: 760px;
  margin: 0 auto var(--space-xxl);
  text-align: left;
}

.section-header--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  margin-bottom: var(--space-md);
  color: var(--color-ink);
}

.section-description {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--color-body);
  max-width: 640px;
}

.section-header--center .section-description { margin-inline: auto; }

/* ============================================================
   Hero band — editorial 6/6 split
   ============================================================ */
.hero {
  padding: calc(var(--space-section) - 8px) 0 var(--space-xxl);
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
}

.hero--split .hero-content {
  grid-template-columns: 1.05fr 0.95fr;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}
.hero-eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--color-muted);
  display: inline-block;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.028em;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-lg);
}

.hero-description {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.55;
  font-weight: 400;
  color: var(--color-body);
  max-width: 640px;
  margin-bottom: var(--space-xl);
}

.hero-illustration {
  position: relative;
  background: var(--color-surface-card);
  border-radius: var(--r-xl);
  padding: var(--space-xl);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* ============================================================
   Buttons
   ============================================================ */
.button,
.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1;
  padding: 12px 22px;
  height: 44px;
  border-radius: var(--r-md);
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
  color: var(--color-on-primary);
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast),
              transform var(--t-fast), box-shadow var(--t-fast);
}

.button:hover,
.button-primary:hover {
  background: var(--color-primary-active);
  border-color: var(--color-primary-active);
}

.button:active,
.button-primary:active {
  transform: translateY(1px);
}

.button-secondary {
  background: transparent;
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
}
.button-secondary:hover {
  background: var(--color-ink);
  color: var(--color-canvas);
}

.button-ghost {
  background: transparent;
  border: 1px solid var(--color-hairline);
  color: var(--color-ink);
}
.button-ghost:hover {
  background: var(--color-surface-card);
  border-color: var(--color-muted-soft);
}

.button-on-dark {
  background: var(--color-canvas);
  border: 1px solid var(--color-canvas);
  color: var(--color-ink);
}
.button-on-dark:hover {
  background: var(--color-on-dark);
  color: var(--color-ink);
}

.button-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ============================================================
   Badges
   ============================================================ */
.badge,
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--color-surface-card);
  color: var(--color-ink);
}

.badge-coral {
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 12px;
}

.badge-amber {
  background: var(--color-accent-amber);
  color: var(--color-ink);
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--color-hairline);
  color: var(--color-body);
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  position: relative;
  background: var(--color-surface-card);
  border: 1px solid transparent;
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  transition: background var(--t-med), border-color var(--t-med),
              transform var(--t-med), box-shadow var(--t-med);
}

.card:hover {
  background: var(--color-surface-cream-strong);
}

.card--canvas {
  background: var(--color-canvas);
  border-color: var(--color-hairline);
}
.card--canvas:hover {
  background: var(--color-canvas);
  border-color: var(--color-muted-soft);
  box-shadow: var(--shadow-hover);
}

.card--dark {
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
}
.card--dark h1, .card--dark h2, .card--dark h3, .card--dark h4 {
  color: var(--color-on-dark);
}
.card--dark p { color: var(--color-on-dark-soft); }

.card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.018em;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
}

.card-description {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-body);
  margin-bottom: var(--space-md);
}

/* ============================================================
   News (blog) list — editorial card list
   ============================================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.news-card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  transition: border-color var(--t-med), background var(--t-med),
              transform var(--t-med);
}

.news-card a {
  display: block;
  color: inherit;
}

.news-card:hover {
  border-color: var(--color-primary);
  background: var(--color-canvas);
}

.news-card .card-title {
  font-size: 1.35rem;
  margin-bottom: var(--space-sm);
}

.news-card .card-title,
.news-card a:hover .card-title {
  transition: color var(--t-fast);
}

.news-card:hover .card-title {
  color: var(--color-primary-active);
}

.news-date {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  margin-top: var(--space-md);
}

/* Featured / first news item — full width editorial */
.news-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--space-xl);
  align-items: stretch;
  background: var(--color-surface-card);
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  border: 1px solid transparent;
  transition: border-color var(--t-med), background var(--t-med);
}
.news-featured:hover {
  border-color: var(--color-primary);
}
.news-featured .news-featured-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.news-featured .card-title {
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  letter-spacing: -0.02em;
}
.news-featured .news-featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-md);
}

@media (max-width: 768px) {
  .news-featured {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Video grid
   ============================================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.video-card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: 16px;
  transition: border-color var(--t-med), transform var(--t-med);
}

.video-card a { display: block; color: inherit; }

.video-card:hover {
  border-color: var(--color-primary);
}

.video-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--r-md);
  margin-bottom: var(--space-md);
  background: var(--color-surface-card);
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.video-card:hover .video-thumbnail img {
  transform: scale(1.04);
}

.video-card .card-title {
  font-size: 1.125rem;
  margin: 0 4px var(--space-xxs);
  padding-top: 4px;
}

.video-card .card-description {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0 4px;
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  z-index: 2;
  background: rgba(20, 20, 19, 0.78);
  color: var(--color-on-dark);
  padding: 3px 8px;
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.video-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}

.video-badge--featured {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

.video-badge--low-quality {
  background: var(--color-muted);
  color: var(--color-on-dark);
  border-color: var(--color-muted);
}

.video-card.is-low-quality {
  opacity: 0.78;
}
.video-card.is-low-quality .video-thumbnail img {
  filter: grayscale(40%);
}

/* ============================================================
   Article (blog post) page — editorial body
   ============================================================ */
.main-content {
  padding: calc(var(--nav-height) + 48px) 24px var(--space-section);
  max-width: 1040px;
  margin: 0 auto;
}

.article-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.article-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-hairline);
}

.article-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.022em;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}

.article-meta {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.article-content {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-body-strong);
}

.article-content p {
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  color: var(--color-body-strong);
}

.article-content h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--color-ink);
}

.article-content h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-ink);
}

.article-content blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--color-primary);
  background: var(--color-surface-soft);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--color-ink);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.article-content ul,
.article-content ol {
  margin: 0 0 var(--space-md) 1.5em;
}
.article-content li {
  margin-bottom: var(--space-xxs);
  color: var(--color-body-strong);
}

.article-content img {
  border-radius: var(--r-md);
  border: 1px solid var(--color-hairline);
  margin: var(--space-lg) 0;
}

.article-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-surface-card);
  color: var(--color-ink);
  padding: 2px 6px;
  border-radius: var(--r-sm);
}

.article-content pre {
  font-family: var(--font-mono);
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
  padding: var(--space-lg);
  border-radius: var(--r-lg);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  font-size: 0.875rem;
  line-height: 1.6;
}
.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.article-image img {
  width: 60%;
  margin: var(--space-lg) auto;
}
@media (max-width: 768px) {
  .article-image img { width: 100%; }
}

/* Highlight callout used in some articles */
.highlight-callout {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--r-md);
  background: var(--color-surface-soft);
  border-left: 3px solid var(--color-primary);
  color: var(--color-body-strong);
}
.highlight-callout strong { color: var(--color-ink); }

.image-caption {
  text-align: center;
  margin-top: var(--space-xs);
  color: var(--color-muted);
  font-size: 0.875rem;
  font-style: italic;
}

.preview-images {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}
@media (max-width: 768px) {
  .preview-images { grid-template-columns: 1fr; }
}

/* Article navigation back-to-list */
.article-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
  transition: color var(--t-fast), gap var(--t-fast);
}
.article-back:hover {
  color: var(--color-primary);
  gap: 10px;
}
.article-back::before { content: "←"; }

/* ============================================================
   Video page chrome
   ============================================================ */
.main-content > .video-info {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  transition: border-color var(--t-med);
}
.main-content > .video-info:hover {
  border-color: var(--color-muted-soft);
}

.main-content .video-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.018em;
  margin-bottom: 8px;
  color: var(--color-ink);
}

.main-content .video-meta {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

.main-content .video-description {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-body-strong);
}

.main-content .video-description.has-expand-toggle {
  max-height: 72px;
  overflow: hidden;
  transition: max-height var(--t-med);
}
.main-content .video-description.has-expand-toggle.expanded {
  max-height: 1000px;
}

.main-content .description-content {
  position: relative;
  overflow: hidden;
  padding-right: 56px;
  white-space: pre-wrap;
}
.main-content .description-content.collapsed {
  max-height: 24px;
}
.main-content .description-content.collapsed::after {
  content: "...";
  position: absolute;
  right: 40px;
  bottom: 0;
  background: linear-gradient(90deg, transparent, var(--color-canvas) 35%);
  color: var(--color-body);
}

.main-content .description-wrapper {
  position: relative;
  display: inline;
}
.main-content .description-wrapper .description-content {
  padding-right: 0;
  white-space: pre-line;
}
.main-content .description-wrapper .description-content.collapsed {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 56px);
  vertical-align: bottom;
}
.main-content .description-wrapper .description-content.collapsed::after { display: none; }

.main-content .toggle-button,
.main-content .description-toggle {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  user-select: none;
  display: inline-block;
  margin-left: 6px;
  padding: 4px 8px;
  border-radius: var(--r-sm);
  transition: background var(--t-fast), color var(--t-fast);
}
.main-content .toggle-button:hover,
.main-content .description-toggle:hover {
  background: var(--color-surface-card);
  color: var(--color-primary-active);
}
.main-content .video-description .description-content + .toggle-button.expand {
  position: absolute;
  right: 0;
  bottom: 0;
}
.main-content .toggle-button.collapse { display: block; margin-top: 8px; }
.main-content .always-show { display: inline; }
.main-content .expandable {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  max-height: 200px;
  transition: max-height var(--t-med);
}
.main-content .expandable.collapsed { max-height: 0; }

.main-content .video-description a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: rgba(204, 120, 92, 0.42);
  text-underline-offset: 3px;
}

.video-container {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-surface-dark);
  border-radius: var(--r-lg);
  padding: 12px;
  margin-bottom: var(--space-md);
}

.video-container video {
  width: 100%;
  display: block;
  border-radius: var(--r-md);
  background: #000;
}

.content-warning {
  margin-top: var(--space-md);
  padding: 12px 16px;
  border-radius: var(--r-md);
  background: rgba(198, 69, 69, 0.08);
  border: 1px solid rgba(198, 69, 69, 0.3);
  color: var(--color-error);
  font-size: 0.9375rem;
}

[data-theme="dark"] .content-warning {
  background: rgba(198, 69, 69, 0.16);
  color: #e88787;
}

.language-switch {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.language-switch:hover {
  background: var(--color-surface-card);
  border-color: var(--color-muted-soft);
}

/* glass-card on legacy archive sections — collapse to a simple cream card */
.glass-card,
.acknowledgment-group {
  background: var(--color-surface-card);
  border: 1px solid transparent;
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  transition: background var(--t-med), border-color var(--t-med);
}
.glass-card:hover,
.acknowledgment-group:hover {
  background: var(--color-surface-cream-strong);
}

.glass-card .video-info {
  padding: 0;
  background: transparent;
  border: 0;
  margin: 0;
}

.glass-card .video-title {
  font-size: 1.1rem;
  font-weight: 500;
  margin: 12px 0 8px;
  color: var(--color-ink);
}

.glass-card .video-meta {
  color: var(--color-muted);
  font-size: 0.875rem;
}

/* ============================================================
   About page
   ============================================================ */
.about-section {
  margin-bottom: var(--space-xxl);
}

.about-section h2 {
  margin-bottom: var(--space-md);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
}

.about-section p {
  margin-bottom: var(--space-md);
  color: var(--color-body-strong);
  font-size: 1.05rem;
  line-height: 1.7;
}

.about-section ul {
  list-style: none;
  padding-left: 0;
  margin-top: var(--space-sm);
}

.about-section ul li {
  position: relative;
  padding-left: 28px;
  margin-bottom: var(--space-sm);
  color: var(--color-body-strong);
  font-size: 1.0625rem;
  line-height: 1.55;
}

.about-section ul li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 14px;
  height: 1px;
  background: var(--color-primary);
}

.acknowledgment-group {
  margin-bottom: var(--space-md);
}

.acknowledgment-group h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--color-ink);
}

.acknowledgment-group p {
  margin: 0;
  color: var(--color-body);
  font-size: 0.9375rem;
}

/* ============================================================
   Coral CTA card / band — used on homepage and pre-footer
   ============================================================ */
.cta-coral {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--r-lg);
  padding: clamp(40px, 8vw, 80px);
  text-align: center;
}

.cta-coral h2,
.cta-coral .section-title {
  color: var(--color-on-primary);
  margin-bottom: var(--space-md);
}

.cta-coral p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  max-width: 560px;
  margin: 0 auto var(--space-lg);
}

.cta-coral .button-on-dark {
  background: var(--color-canvas);
  color: var(--color-ink);
  border-color: var(--color-canvas);
}
.cta-coral .button-on-dark:hover {
  background: var(--color-on-dark);
}

/* Dark CTA band */
.cta-dark {
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
  border-radius: var(--r-lg);
  padding: clamp(40px, 8vw, 80px);
  text-align: center;
}
.cta-dark h2,
.cta-dark .section-title { color: var(--color-on-dark); }
.cta-dark p {
  color: var(--color-on-dark-soft);
  max-width: 560px;
  margin: 0 auto var(--space-lg);
  font-size: 1.125rem;
}

/* ============================================================
   Category section (archive page)
   ============================================================ */
.category-section {
  padding: var(--space-xxl) 0 0;
}

.category-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-hairline);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.category-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -0.018em;
  color: var(--color-ink);
  margin: 0;
}

/* ============================================================
   Footer — dark navy
   ============================================================ */
footer {
  background: var(--color-surface-dark);
  color: var(--color-on-dark-soft);
  padding: var(--space-xxl) 0 var(--space-xl);
  margin-top: var(--space-section);
  border-top: 0;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-on-dark);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.012em;
}
.footer-brand .nav-logo { color: var(--color-on-dark); width: 22px; height: 22px; }

.footer-text {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-on-dark-soft);
  margin: 0;
}

footer a {
  color: var(--color-on-dark-soft);
  transition: color var(--t-fast);
}
footer a:hover {
  color: var(--color-on-dark);
}

/* ============================================================
   Reveal / hero motion
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.7s cubic-bezier(0.25, 0.1, 0.25, 1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-scale { transform: translateY(20px) scale(0.98); }
.reveal-scale.is-visible { transform: translateY(0) scale(1); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@keyframes hero-fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-enter {
  opacity: 0;
  animation: hero-fade-up 0.85s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}
.hero-enter-d1 { animation-delay: 0.12s; }
.hero-enter-d2 { animation-delay: 0.24s; }
.hero-enter-d3 { animation-delay: 0.36s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  :root { --nav-height: 60px; --nav-height-compact: 52px; }
  .container, .container-wide, .nav-container { padding: 0 20px; }
  .section { padding: 72px 0; }
  footer { margin-top: 72px; }
}

@media (max-width: 768px) {
  html { font-size: 15.5px; }
  :root { --nav-height: 56px; --nav-height-compact: 52px; }

  .nav-hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-container { padding: 0 16px; gap: 12px; }

  .nav-menu,
  .nav-items {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px 16px 24px;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    box-shadow: 0 16px 32px rgba(20, 20, 19, 0.08);
    z-index: 9995;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--t-med), opacity var(--t-med),
                visibility var(--t-med);
  }
  .is-scrolled .nav-menu,
  .is-scrolled .nav-items { top: var(--nav-height-compact); }
  .nav-menu.open,
  .nav-items.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-menu li,
  .nav-items li { flex: none; }
  .nav-link,
  .nav-items li a {
    display: block;
    font-size: 1rem;
    padding: 14px 12px;
    border-radius: var(--r-md);
    border-bottom: 1px solid var(--color-hairline-soft);
  }
  .nav-link:last-of-type,
  .nav-items li:last-child a { border-bottom: none; }

  .nav-overlay { display: block; }
  .is-scrolled .nav-overlay { top: var(--nav-height-compact); }

  .theme-menu {
    position: fixed;
    top: calc(var(--nav-height) + 8px);
    right: 16px;
    margin-top: 0;
    min-width: 168px;
  }

  .section { padding: 56px 0; }
  .hero { padding: 48px 0 32px; }

  .hero--split .hero-content { grid-template-columns: 1fr; }
  .hero-illustration { min-height: 240px; }

  .news-grid,
  .video-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .card,
  .news-card { padding: var(--space-lg); }

  .article-header { padding-bottom: var(--space-lg); }

  footer { padding: 40px 0 24px; }
}

@media (max-width: 420px) {
  .container, .container-wide { padding: 0 14px; }
  .nav-container { padding: 0 14px; }
  .button { padding: 11px 18px; height: 42px; font-size: 0.875rem; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}