:root {
  --bg: #0b0b14;
  --card: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --text: #f2f1f7;
  --muted: #a5a3b8;
  --accent: #6661f2;
  --accent-soft: rgba(102, 97, 242, 0.18);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f5fb;
    --card: rgba(255, 255, 255, 0.75);
    --border: rgba(20, 18, 50, 0.08);
    --text: #15142a;
    --muted: #5d5b72;
    --accent: #5550e0;
    --accent-soft: rgba(85, 80, 224, 0.12);
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", sans-serif;
  background:
    radial-gradient(900px 600px at 50% -10%, var(--accent-soft), transparent 70%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 32px 20px 64px; }

nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 0 40px; gap: 12px; flex-wrap: wrap;
}
nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; color: var(--text); text-decoration: none; }
nav .brand img { width: 34px; height: 34px; border-radius: 9px; }
nav .links { display: flex; gap: 18px; }
nav .links a { color: var(--muted); text-decoration: none; font-size: 15px; }
nav .links a:hover, nav .links a.active { color: var(--text); }

.hero { text-align: center; padding: 40px 0 24px; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 20px 60px var(--accent-soft); }
.hero h1 { font-size: clamp(36px, 7vw, 56px); letter-spacing: -0.02em; margin: 24px 0 8px; }
.hero p { color: var(--muted); font-size: 19px; max-width: 520px; margin: 0 auto; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 36px; }
.grid .card h3 { font-size: 17px; margin-bottom: 6px; }
.grid .card p { color: var(--muted); font-size: 15px; }

.quote { text-align: center; font-size: 20px; font-style: italic; color: var(--muted); margin: 48px auto; max-width: 560px; }

article h1 { font-size: clamp(30px, 6vw, 42px); letter-spacing: -0.02em; margin-bottom: 6px; }
article .updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
article h2 { font-size: 20px; margin: 32px 0 10px; }
article p, article li { color: var(--text); opacity: 0.92; font-size: 16px; }
article ul { padding-left: 22px; margin: 8px 0; }
article li { margin: 6px 0; }
article .card { margin: 18px 0; }
article a, footer a { color: var(--accent); }

footer {
  margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--border);
  color: var(--muted); font-size: 14px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}