:root {
  --bg: #0b0d10;
  --panel: #14181d;
  --line: #2a2f36;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #ff7a1a;
  --accent-ink: #111;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f7f9;
    --panel: #ffffff;
    --line: #dde1e6;
    --text: #15181c;
    --muted: #5f6670;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: var(--accent); }

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

header.top {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 800; letter-spacing: .5px; text-decoration: none; color: var(--text); }
.brand span { color: var(--accent); }
nav a { margin-left: 18px; text-decoration: none; color: var(--muted); font-weight: 600; }
nav a:hover { color: var(--text); }

.hero { padding: 72px 0 48px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; margin: 0 0 16px; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 640px; margin: 0 0 28px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 12px 20px;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
  margin: 0 10px 10px 0;
}

.btn.alt { background: var(--panel); color: var(--text); border: 1px solid var(--line); }

section { padding: 40px 0; }
section h2 { font-size: 1.5rem; margin: 0 0 18px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }
.card .meta { font-size: .85rem; color: var(--muted); margin-top: 10px; }

.note { color: var(--muted); font-size: .9rem; }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: .9rem; }
footer a { color: var(--muted); }