/* teoremas.com.br — estilo do hub
   Tokens alinhados com o Painel de Disciplinas (mesma família visual). */

:root {
  --bg: #fafbfc;
  --bg-warm: #f5f3f0;
  --surface: #ffffff;
  --surface-hover: #f8f9fa;
  --accent: #1a56db;
  --accent-light: #e8eefb;
  --accent-soft: rgba(26, 86, 219, .07);
  --success: #059669;
  --success-light: #ecfdf5;
  --warn: #d97706;
  --warn-light: #fffbeb;
  --text: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f0f1f3;
  --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, .06);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, .08);
  --radius: 10px;
  --radius-lg: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1117;
    --bg-warm: #14161d;
    --surface: #191c24;
    --surface-hover: #1f232c;
    --accent: #6a9bff;
    --accent-light: #1c2740;
    --accent-soft: rgba(106, 155, 255, .1);
    --success: #34d399;
    --success-light: #12291f;
    --warn: #fbbf24;
    --warn-light: #2a2211;
    --text: #f1f3f7;
    --text-secondary: #b4bcca;
    --text-muted: #7b8494;
    --border: #272b35;
    --border-light: #1f232c;
    --shadow: 0 1px 3px rgba(0, 0, 0, .5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, .45);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, .5);
  }
}

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

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap {
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- cabeçalho ---------- */

header {
  padding: 72px 0 8px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
}

.brand-mark {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 30px;
  color: var(--accent);
  line-height: 1;
}

.brand-name {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -.035em;
}

.tagline {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 46ch;
}

/* ---------- grade de projetos ---------- */

main { flex: 1; padding: 44px 0 0; }

.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}

a.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

a.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.card.soon {
  background: var(--bg-warm);
  border-style: dashed;
  box-shadow: none;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.02em;
}

.card-desc {
  font-size: 14.5px;
  color: var(--text-secondary);
}

.card-meta {
  margin-top: auto;
  padding-top: 8px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  color: var(--text-muted);
}

.badge {
  flex-shrink: 0;
  margin-top: 3px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .02em;
}

.badge-ok { background: var(--success-light); color: var(--success); }
.badge-soon { background: var(--warn-light); color: var(--warn); }

/* ---------- rodapé ---------- */

footer {
  margin-top: 64px;
  padding: 24px 0 40px;
  border-top: 1px solid var(--border-light);
  font-size: 13.5px;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  justify-content: space-between;
}

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

@media (max-width: 560px) {
  header { padding-top: 48px; }
  .brand-mark, .brand-name { font-size: 26px; }
  .tagline { font-size: 16px; }
}