@import './global.css';

:root {
  color-scheme: light;
  --paper: #f8f7f2;
  --paper-deep: #ece7dc;
  --ink: #171b1d;
  --muted: #596267;
  --line: rgba(23, 27, 29, 0.14);
  --line-strong: rgba(23, 27, 29, 0.28);
  --surface: rgba(255, 255, 255, 0.72);
  --cobalt: #2457d6;
  --pine: #1d6b57;
  --brass: #b5742a;
  --coral: #bf4a3a;
  --font: 'Inter', 'Noto Sans TC', sans-serif;
  --serif: 'Playfair Display', 'Noto Sans TC', serif;
  --mono: 'Azeret Mono', 'Noto Sans TC', monospace;
  --max-w: 1180px;
  --radius: 8px;
}

body {
  min-width: 320px;
  overflow-x: hidden;
  font-family: var(--font);
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(36, 87, 214, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(29, 107, 87, 0.055) 1px, transparent 1px),
    linear-gradient(135deg, var(--paper) 0%, #fbfaf6 42%, var(--paper-deep) 100%);
  background-size: 56px 56px, 56px 56px, auto;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(112deg, transparent 0 32%, rgba(191, 74, 58, 0.08) 32% 33%, transparent 33% 100%),
    linear-gradient(22deg, transparent 0 62%, rgba(181, 116, 42, 0.12) 62% 63%, transparent 63% 100%);
  pointer-events: none;
}

::selection {
  color: #fff;
  background: var(--cobalt);
}

.atlas-shell {
  width: min(var(--max-w), calc(100% - 40px));
  margin: 0 auto;
}

.atlas-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 12px 0;
  background: rgba(248, 247, 242, 0.84);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.atlas-brand,
.atlas-links,
.hero-actions,
.atlas-contact div {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.atlas-brand {
  gap: 12px;
  font-weight: 900;
}

.brand-token {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  color: #fff;
  background: var(--ink);
  font-family: var(--mono);
  font-size: 0.9rem;
}

.atlas-links {
  justify-content: flex-end;
  gap: 8px;
}

.atlas-links a,
.hero-actions a,
.atlas-contact a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.atlas-links a:hover,
.hero-actions a:hover,
.atlas-contact a:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
}

.primary-action {
  border-color: transparent !important;
  color: #fff !important;
  background: var(--cobalt) !important;
}

.primary-action:hover {
  transform: translateY(-1px);
  background: #183f9e !important;
}

.atlas-hero {
  min-height: calc(100dvh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  align-items: center;
  gap: 56px;
  padding: 70px 0 48px;
}

.hero-copy,
.section-copy,
.hero-visual,
.route-card,
.system-row,
.paper-row,
.stack-matrix article,
.ledger a,
.fit-grid article {
  min-width: 0;
}

.kicker {
  margin-bottom: 18px;
  color: var(--cobalt);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.atlas-hero h1 {
  max-width: 9ch;
  font-family: var(--serif);
  font-size: 8.5rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 0.88;
}

.hero-lede {
  max-width: 62ch;
  margin-top: 28px;
  color: var(--muted);
  font-size: 1.22rem;
  line-height: 1.65;
}

.hero-actions {
  gap: 10px;
  margin-top: 28px;
}

.hero-visual {
  display: grid;
  gap: 14px;
}

.portrait-band {
  display: grid;
  grid-template-columns: 144px minmax(0, 1fr);
  gap: 18px;
  align-items: end;
  padding: 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 14px 14px 0 rgba(36, 87, 214, 0.12);
}

.portrait-band img {
  aspect-ratio: 1;
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
  filter: grayscale(18%) contrast(1.05);
}

.portrait-band span,
.map-lines span,
.route-card span,
.system-row > span,
.paper-row > span,
.ledger span,
.fit-grid span,
.portrait-band p,
.system-row strong,
.paper-row strong {
  font-family: var(--mono);
}

.portrait-band span {
  color: var(--brass);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.portrait-band strong {
  display: block;
  margin: 8px 0;
  font-size: 1.12rem;
}

.portrait-band p {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.map-lines {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.58);
}

.map-lines span {
  min-height: 58px;
  display: grid;
  place-items: center;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.map-lines span:last-child {
  border-right: 0;
}

.metric-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.metric-ribbon article {
  padding: 22px;
  border-right: 1px solid var(--line);
}

.metric-ribbon article:last-child {
  border-right: 0;
}

.metric-ribbon strong {
  display: block;
  font-family: var(--serif);
  font-size: 4rem;
  line-height: 0.95;
}

.metric-ribbon span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.atlas-section {
  padding: 92px 0;
  border-bottom: 1px solid var(--line);
}

.atlas-section h2,
.atlas-contact h2 {
  max-width: 12ch;
  font-family: var(--serif);
  font-size: 4.2rem;
  font-weight: 800;
  line-height: 0.98;
}

.thesis,
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 56px;
  align-items: start;
}

.sticky-copy {
  position: sticky;
  top: 96px;
}

.section-copy > p:not(.kicker),
.thesis-copy p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.thesis-copy p + p {
  margin-top: 18px;
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 36px;
}

.route-card,
.stack-matrix article,
.fit-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: rgba(255, 255, 255, 0.58);
}

.route-card span,
.system-row > span,
.paper-row > span,
.ledger span,
.fit-grid span {
  color: var(--cobalt);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.route-card h3,
.system-row h3,
.paper-row h3,
.stack-matrix h3,
.fit-grid h3 {
  margin-top: 14px;
  font-size: 1.08rem;
  line-height: 1.25;
}

.route-card p,
.system-row p,
.paper-row p,
.fit-grid p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.route-card strong,
.system-row strong,
.paper-row strong {
  display: block;
  margin-top: 18px;
  color: var(--pine);
  font-size: 0.74rem;
  line-height: 1.45;
}

.system-list,
.research-stack,
.ledger {
  display: grid;
  gap: 12px;
}

.system-row,
.paper-row,
.ledger a {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 22px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  transition: padding-left 180ms ease, border-color 180ms ease;
}

.system-row:hover,
.paper-row:hover,
.ledger a:hover {
  padding-left: 10px;
  border-color: var(--line-strong);
}

.system-row strong {
  grid-column: 2;
}

.paper-row.domestic {
  background: rgba(29, 107, 87, 0.045);
}

.stack-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stack-matrix article div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.stack-matrix span {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 10px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.56);
}

.ledger a {
  grid-template-columns: 110px minmax(0, 1fr) minmax(160px, auto);
  align-items: center;
}

.ledger small {
  color: var(--muted);
  font-size: 0.78rem;
  text-align: right;
}

.role-fit {
  border-bottom: 0;
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 34px;
}

.atlas-contact {
  margin: 0 0 48px;
  padding: 48px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  color: #fff;
  background: linear-gradient(135deg, var(--ink), #1f3040);
}

.atlas-contact .kicker {
  color: #8fd5bf;
}

.atlas-contact h2 {
  max-width: 16ch;
}

.atlas-contact div {
  gap: 10px;
  margin-top: 28px;
}

.atlas-contact a {
  border-color: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.78);
}

.atlas-contact a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.09);
}

@media (max-width: 980px) {
  .atlas-hero,
  .thesis,
  .split {
    grid-template-columns: 1fr;
  }

  .sticky-copy {
    position: static;
  }

  .route-grid,
  .fit-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .atlas-shell {
    width: min(100% - 28px, var(--max-w));
  }

  .atlas-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .atlas-hero {
    min-height: auto;
    padding-top: 44px;
  }

  .atlas-hero h1 { font-size: 4rem; }
  .hero-lede { font-size: 1.05rem; }
  .metric-ribbon strong { font-size: 2.8rem; }
  .atlas-section h2,
  .atlas-contact h2 { font-size: 2.5rem; }

  .portrait-band,
  .metric-ribbon,
  .route-grid,
  .fit-grid,
  .stack-matrix {
    grid-template-columns: 1fr;
  }

  .metric-ribbon article,
  .map-lines span {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metric-ribbon article:last-child,
  .map-lines span:last-child {
    border-bottom: 0;
  }

  .map-lines {
    grid-template-columns: 1fr 1fr;
  }

  .system-row,
  .paper-row,
  .ledger a {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .system-row strong,
  .ledger small {
    grid-column: auto;
    text-align: left;
  }

  .atlas-section {
    padding: 64px 0;
  }

  .atlas-contact {
    padding: 28px;
  }
}