/* ============================================================
   Frontier AI Weekly — Edition 12 — Governance Fork
   IPO filings meet pause architecture; policy rails split the week.
   ============================================================ */

:root {
  --bg-primary: #0a0e18;
  --bg-secondary: #101828;
  --bg-surface: rgba(16, 24, 40, 0.92);
  --bg-elevated: rgba(22, 32, 52, 0.97);
  --text-primary: #eef2f7;
  --text-secondary: #94a3b8;
  --text-muted: #5a6a82;
  --accent-violet: #8b5cf6;
  --accent-violet-dim: rgba(139, 92, 246, 0.16);
  --accent-blue: #3b82f6;
  --accent-green: #17b26a;
  --accent-amber: #e8a838;
  --accent-amber-dim: rgba(232, 168, 56, 0.12);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.09);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
  --font-display: 'Outfit', var(--font-sans);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ticker-h: 3.35rem;
  --page-pad: clamp(1rem, 4vw, 2.75rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: calc(var(--ticker-h) + env(safe-area-inset-top, 0px));
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  -webkit-tap-highlight-color: transparent;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
  opacity: 0.038;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* —— Ticker —— */
.ticker-strip {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  height: var(--ticker-h);
  min-height: 44px;
  display: flex;
  align-items: center;
  background: rgba(8, 12, 22, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--glass-border);
  overflow: hidden;
}

.ticker-track {
  display: flex;
  width: max-content;
  animation: gf-ticker 72s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
  }
}

@keyframes gf-ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.ticker-content {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0 1.25rem;
  white-space: nowrap;
}

.ticker-item {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.ticker-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-amber);
  margin-right: 0.4rem;
}

.ticker-divider {
  color: var(--text-muted);
  opacity: 0.5;
}

/* —— Shell —— */
.gf-shell {
  max-width: 1280px;
  margin: 0 auto;
}

/* —— Hero —— */
.gf-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 8vh, 5rem) var(--page-pad);
  overflow: hidden;
}

.gf-hero__fork-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(135deg, rgba(139, 92, 246, 0.08) 0%, transparent 45%),
    linear-gradient(225deg, rgba(232, 168, 56, 0.06) 0%, transparent 45%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(59, 130, 246, 0.07), transparent);
}

.gf-hero__fork-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--accent-amber) 30%, var(--accent-violet) 70%, transparent);
  opacity: 0.35;
  z-index: 1;
}

.gf-hero__inner {
  position: relative;
  z-index: 2;
}

.gf-hero__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-amber);
  margin-bottom: 1.25rem;
}

.gf-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 18ch;
  margin-bottom: 2rem;
}

.gf-hero__title span {
  background: linear-gradient(135deg, var(--accent-violet), var(--accent-amber));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gf-hero__fork {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

@media (max-width: 720px) {
  .gf-hero__fork {
    grid-template-columns: 1fr;
  }

  .gf-hero__fork-line {
    display: none;
  }
}

.gf-fork__col {
  padding: 1.5rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.gf-fork__col--public {
  border-top: 3px solid var(--accent-violet);
}

.gf-fork__col--pause {
  border-top: 3px solid var(--accent-amber);
}

.gf-fork__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.gf-fork__col--public .gf-fork__label { color: var(--accent-violet); }
.gf-fork__col--pause .gf-fork__label { color: var(--accent-amber); }

.gf-fork__headline {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.gf-lead {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 68ch;
}

.gf-lead strong {
  color: var(--text-primary);
  font-weight: 600;
}

.gf-hero__sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 1.5rem;
}

/* —— Typography —— */
.gf-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.gf-h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.gf-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-violet);
  margin-bottom: 0.5rem;
}

.gf-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
}

/* —— Source links —— */
.source {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-violet);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease-out-expo);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.source:hover {
  border-bottom-color: var(--accent-violet);
}

/* —— Document band —— */
.gf-doc {
  padding: clamp(3rem, 7vh, 5rem) var(--page-pad);
  border-bottom: 1px solid var(--glass-border);
}

.gf-doc--amber {
  background: linear-gradient(180deg, var(--accent-amber-dim), transparent 40%);
}

.gf-doc--violet {
  background: linear-gradient(180deg, var(--accent-violet-dim), transparent 40%);
}

.gf-doc__inner {
  max-width: 900px;
}

.gf-doc__inner--wide {
  max-width: 1100px;
}

.gf-doc__head {
  margin-bottom: 1.75rem;
}

/* —— Filing strip —— */
.gf-filing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--glass-border);
  border-radius: 10px;
  overflow: hidden;
  margin: 1.75rem 0;
}

@media (max-width: 600px) {
  .gf-filing {
    grid-template-columns: 1fr;
  }
}

.gf-filing__cell {
  background: var(--bg-elevated);
  padding: 1.25rem;
  text-align: center;
}

.gf-filing__num {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 700;
  color: var(--accent-violet);
}

.gf-filing__lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* —— Quote pull —— */
.gf-quote {
  border-left: 3px solid var(--accent-amber);
  padding: 1rem 0 1rem 1.5rem;
  margin: 1.75rem 0;
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.65;
}

.gf-quote cite {
  display: block;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

/* —— Mono rail —— */
.gf-rail {
  display: grid;
  grid-template-columns: minmax(5rem, 8rem) 1fr;
  gap: 1rem 1.5rem;
  margin: 1.75rem 0;
  padding: 1.25rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
}

.gf-rail__key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.gf-rail__val {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* —— Asymmetric split —— */
.gf-asym {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(3rem, 7vh, 5rem) var(--page-pad);
  align-items: start;
}

@media (max-width: 800px) {
  .gf-asym {
    grid-template-columns: 1fr;
  }
}

.gf-asym__aside {
  position: sticky;
  top: calc(var(--ticker-h) + 1.5rem);
}

.gf-mono-big {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 600;
  color: var(--accent-violet);
  word-break: break-all;
  margin-bottom: 0.75rem;
}

/* —— Benchmark scroll —— */
.gf-bench-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.75rem 0;
  padding-bottom: 0.5rem;
}

.gf-bench-scroll__track {
  display: flex;
  gap: 1rem;
  width: max-content;
  padding: 0.25rem;
}

.gf-bench-card {
  flex: 0 0 auto;
  width: 200px;
  padding: 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  backdrop-filter: blur(8px);
}

.gf-bench-card__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.5rem;
}

.gf-bench-card__val {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-green);
  display: block;
}

.gf-bench-card__note {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  display: block;
  line-height: 1.4;
}

/* —— Policy timeline —— */
.gf-policy-tl {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 1.75rem 0;
  border-left: 2px solid var(--accent-amber);
  padding-left: 1.5rem;
}

.gf-policy-tl__item {
  position: relative;
  padding: 1rem 0 1.5rem;
}

.gf-policy-tl__item::before {
  content: '';
  position: absolute;
  left: calc(-1.5rem - 5px);
  top: 1.35rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-amber);
  box-shadow: 0 0 8px var(--accent-amber);
}

.gf-policy-tl__item time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-amber);
  display: block;
  margin-bottom: 0.35rem;
}

.gf-policy-tl__item p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* —— Chip schematic —— */
.gf-chip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 0.75rem;
  margin: 1.75rem 0;
  padding: 1.5rem;
  background: var(--glass);
  border: 1px dashed var(--glass-border);
  border-radius: 12px;
}

.gf-chip__node {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.6rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  text-align: center;
  line-height: 1.4;
}

.gf-chip__node--hero {
  border-color: var(--accent-violet);
  color: var(--accent-violet);
  font-weight: 600;
}

.gf-chip__arrow {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* —— Model grid —— */
.gf-model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.gf-model-chip {
  padding: 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  text-align: center;
}

.gf-model-chip__name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-blue);
  display: block;
}

.gf-model-chip__role {
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  display: block;
}

/* —— Stacked panels —— */
.gf-stack {
  padding: clamp(3rem, 7vh, 5rem) var(--page-pad);
}

.gf-stack__panel {
  padding: 2rem;
  margin-bottom: 1px;
  background: var(--bg-surface);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.gf-stack__panel:first-child {
  border-radius: 12px 12px 0 0;
}

.gf-stack__panel:last-child {
  border-radius: 0 0 12px 12px;
  margin-bottom: 0;
}

/* —— Contrarian —— */
.gf-contra {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

@media (max-width: 640px) {
  .gf-contra {
    grid-template-columns: 1fr;
  }
}

.gf-contra__col {
  padding: 1.5rem;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
}

.gf-contra__col--up {
  border-top: 3px solid var(--accent-green);
}

.gf-contra__col--down {
  border-top: 3px solid var(--accent-amber);
}

/* —— Week ahead —— */
.gf-ahead {
  padding: clamp(3rem, 7vh, 5rem) var(--page-pad) clamp(4rem, 10vh, 6rem);
  background: linear-gradient(180deg, transparent, rgba(139, 92, 246, 0.04));
}

.gf-ahead__list {
  list-style: none;
  margin: 1.75rem 0;
  display: grid;
  gap: 1rem;
}

.gf-ahead__item {
  display: grid;
  grid-template-columns: minmax(10rem, 14rem) 1fr;
  gap: 1rem 1.5rem;
  padding: 1.25rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  backdrop-filter: blur(8px);
}

@media (max-width: 600px) {
  .gf-ahead__item {
    grid-template-columns: 1fr;
  }
}

.gf-ahead__item time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-violet);
  line-height: 1.5;
}

.gf-ahead__item h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.gf-ahead__item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.gf-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 1rem 0;
}

/* —— Footer —— */
.site-footer {
  text-align: center;
  padding: 3rem var(--page-pad) calc(3rem + env(safe-area-inset-bottom));
  border-top: 1px solid var(--glass-border);
  background: var(--bg-primary);
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.site-footer__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-violet);
  box-shadow: 0 0 12px var(--accent-violet);
  animation: gf-pulse 2.5s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .site-footer__pulse {
    animation: none;
  }
}

@keyframes gf-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.65; transform: scale(0.92); }
}

.site-footer__regen {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 36ch;
  margin: 0 auto 1rem;
}

.site-footer__session {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer__timestamp {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* GSAP initial states */
.gf-reveal,
.gf-fade {
  opacity: 0;
}

.gf-reveal.is-visible,
.gf-fade.is-visible {
  opacity: 1;
}

@media (max-width: 320px) {
  .gf-chip {
    flex-direction: column;
  }

  .gf-chip__arrow {
    transform: rotate(90deg);
  }
}