:root {
  --bg: #0e1014;
  --bg-soft: #161a21;
  --bg-card: #1c2129;
  --fg: #e8e5df;
  --fg-muted: #a39e93;
  --fg-dim: #6b6961;
  --accent: #c8924c;
  --accent-strong: #e0a55c;
  --accent-soft: rgba(200, 146, 76, 0.12);
  --border: rgba(232, 229, 223, 0.08);
  --border-strong: rgba(232, 229, 223, 0.18);
}

[data-theme="steel"] {
  --bg: #0a1220;
  --bg-soft: #111c2e;
  --bg-card: #16243a;
  --fg: #e8edf5;
  --fg-muted: #9aa8bd;
  --fg-dim: #5e6a7e;
  --accent: #8aa4c4;
  --accent-strong: #b3c5dd;
  --accent-soft: rgba(138, 164, 196, 0.14);
  --border: rgba(232, 237, 245, 0.08);
  --border-strong: rgba(232, 237, 245, 0.18);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-feature-settings: 'ss01', 'cv11';
  transition: background-color 0.4s ease, color 0.4s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

h1, h2, h3, h4 {
  font-family: 'Source Serif 4', 'Source Serif Pro', Georgia, serif;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 16, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
[data-theme="steel"] header { background: rgba(10, 18, 32, 0.85); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.brand {
  font-family: 'Source Serif 4', serif;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
}
.brand span { color: var(--accent); }
.brand:hover { color: var(--fg); }

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--fg-muted);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  transition: border-color 0.2s, color 0.2s;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--fg); }
.theme-toggle .dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

/* Mobile header */
@media (max-width: 760px) {
  .nav { padding: 0.7rem 0; gap: 0.75rem; }
  .brand {
    font-size: 0.98rem;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1 1 auto;
  }
  .theme-toggle {
    padding: 0.35rem 0.7rem;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    flex-shrink: 0;
  }
  .theme-toggle .dot { width: 0.5rem; height: 0.5rem; }
}

/* Hero */
.hero {
  padding: 6rem 0 4rem;
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin-bottom: 1.25rem;
  max-width: 22ch;
}
.hero .lead {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 60ch;
}

/* Sections */
section {
  padding: 4.5rem 0;
}
section.alt {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-title {
  font-size: 1.6rem;
  margin-bottom: 2.25rem;
}
.muted { color: var(--fg-muted); }

/* Grid + cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.6rem 1.5rem 1.4rem;
  color: var(--fg);
  text-decoration: none;
  transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
  opacity: 0;
  transform: translateY(8px);
}
.card.in {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.25s ease, background-color 0.25s ease;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.card.soon { opacity: 0.78; }
.card.soon.in { opacity: 0.78; }

.card-tag {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  align-self: flex-start;
}
.card h3 {
  font-size: 1.2rem;
  color: var(--fg);
}
.card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  flex: 1;
}
.card-link {
  color: var(--accent);
  font-size: 0.88rem;
  letter-spacing: 0.01em;
  margin-top: 0.4rem;
}

/* Links row */
.links-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  color: var(--fg-dim);
}
.links-row a {
  color: var(--fg);
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 1px;
}
.links-row a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 1.6rem 0;
  color: var(--fg-dim);
  font-size: 0.88rem;
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}
.footer-row a { color: var(--fg-muted); }
.footer-row a:hover { color: var(--accent); }
.footer-row .sep { color: var(--fg-dim); }

@media (max-width: 640px) {
  .hero { padding: 4rem 0 3rem; }
  section { padding: 3.5rem 0; }
}