:root {
  --bg: #0e0f12;
  --surface: #17191f;
  --border: #262a33;
  --text: #e8e9ed;
  --muted: #9a9fab;
  --accent: #7aa2ff;
  --max: 960px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafafa;
    --surface: #ffffff;
    --border: #e3e5ea;
    --text: #15171c;
    --muted: #5d6370;
    --accent: #2f5fe0;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.site-header, main, .site-footer {
  width: min(var(--max), 100% - 3rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}
.brand { color: var(--text); font-weight: 650; letter-spacing: -0.01em; }
.site-header nav { display: flex; gap: 1.5rem; }
.site-header nav a { color: var(--muted); }
.site-header nav a:hover { color: var(--text); text-decoration: none; }

.hero { padding: 6rem 0 5rem; }
.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  margin: 0 0 1rem;
}
h1 { font-size: clamp(2.5rem, 7vw, 4.5rem); line-height: 1.05; margin: 0 0 1.25rem; letter-spacing: -0.03em; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 36rem; margin: 0 0 2rem; }

.button {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
}
.button:hover { text-decoration: none; filter: brightness(1.1); }

section { padding: 3rem 0; border-top: 1px solid var(--border); }
.hero { border-top: none; }
h2 { font-size: 1.6rem; margin: 0 0 1.5rem; letter-spacing: -0.02em; }

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1rem 1.25rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); }
.card h3 { margin: 1rem 0 0.25rem; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }
.thumb {
  aspect-ratio: 16 / 10;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--border), var(--surface));
}
.placeholder { opacity: 0.75; }

.site-footer { padding: 2rem 0 3rem; color: var(--muted); border-top: 1px solid var(--border); font-size: 0.9rem; }