:root {
  --bg: #0b0d12;
  --bg-elev: #12151c;
  --bg-card: #161a23;
  --bg-card-hover: #1d2230;
  --border: #232838;
  --border-strong: #2e3447;
  --text: #e6e8ef;
  --text-dim: #9aa1b3;
  --text-faint: #6b7184;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);

  /* Per-app accents — sourced from each app's own --accent so the hub mirrors them. */
  --forge:     #38bdf8;
  --strata:    #E8751A;
  --hardpoint: #ef4444;
  --wikelo:    #ffc844;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body { display: flex; flex-direction: column; }

a { text-decoration: none; }

/* Header */
.site-header {
  padding: 48px 32px 32px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg-elev) 0%, var(--bg) 100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 1320px;
  margin: 0 auto;
}

.logo {
  font-size: 42px;
  color: var(--forge);
  line-height: 1;
}

.site-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tagline {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 2px;
}

/* Main */
main {
  flex: 1;
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 48px 32px 32px;
}

/* Cards: 4-up at desktop, 2-up at tablet, 1-up at mobile. */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 48px;
}

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}

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

.card {
  --card-accent: var(--text-dim);
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--card-accent);
  border-radius: 10px;
  padding: 24px 22px 22px;
  color: var(--text);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
  min-height: 100%;
}

.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
  border-top-color: var(--card-accent);
  color: var(--text);
}

.card-forge     { --card-accent: var(--forge); }
.card-strata    { --card-accent: var(--strata); }
.card-hardpoint { --card-accent: var(--hardpoint); }
.card-wikelo    { --card-accent: var(--wikelo); }

.card-icon {
  font-size: 30px;
  color: var(--card-accent);
  margin-bottom: 14px;
  line-height: 1;
}

.card h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.card-tagline {
  color: var(--card-accent);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.card-desc {
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.55;
  margin-bottom: 18px;
  flex: 1;
}

.card-go {
  color: var(--card-accent);
  font-size: 13px;
  font-weight: 600;
  opacity: 0.75;
  transition: opacity 0.15s ease;
}

.card:hover .card-go { opacity: 1; }

/* About */
.about {
  border-top: 1px solid var(--border);
  padding-top: 28px;
}

.about h3 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 10px;
}

.about p {
  color: var(--text-dim);
  font-size: 14px;
  max-width: 760px;
}

.about a {
  color: var(--forge);
}

.about a:hover { color: #7dd0fc; }

/* Footer */
footer {
  padding: 20px 32px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-faint);
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1320px;
  margin: 0 auto;
  width: 100%;
}

footer a { color: var(--text-dim); }
footer a:hover { color: var(--text); }
footer .patch { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; }

@media (max-width: 600px) {
  .site-header { padding: 32px 20px 24px; }
  main { padding: 32px 20px 24px; }
  .card { padding: 20px 18px 18px; }
}