:root {
  --red: #DD1417;
  --red-dark: #A80103;
  --bg: #0f1115;
  --surface: #171a21;
  --text: #e8eaed;
  --muted: #9aa0aa;
  --border: #262b34;
  --max-width: clamp(1200px, 90vw, 1600px);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--red);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: none;
  padding: 0 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
  display: block;
}

.nav {
  display: flex;
  gap: 22px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  white-space: nowrap;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}

/* Hero */
.hero {
  text-align: center;
  padding: 72px 0 48px;
}

.hero img.hero-logo {
  width: 96px;
  height: 96px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 2.6rem;
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--muted);
  margin: 0 auto;
  max-width: 560px;
}

.badge {
  display: inline-block;
  margin-top: 28px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--muted);
  background: var(--surface);
}

/* Feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 40px 0;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Content pages */
.page {
  padding: 48px 20px 72px;
}

.page h1 {
  font-size: 2rem;
  margin: 0 0 8px;
}

.page .updated {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 32px;
}

.page h2 {
  font-size: 1.3rem;
  margin: 36px 0 12px;
}

.page p,
.page li {
  color: #cfd3da;
}

.page ul {
  padding-left: 22px;
}

.page li {
  margin-bottom: 8px;
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--red);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding: 40px 0 48px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .nav {
  justify-content: center;
  margin-bottom: 14px;
}

/* Responsive */
@media (max-width: 600px) {
  .site-header .container {
    padding: 0 16px;
  }
  .hero {
    padding: 48px 0 32px;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero .tagline {
    font-size: 1.05rem;
  }
  .features {
    grid-template-columns: 1fr;
  }
  .nav {
    gap: 14px;
    font-size: 0.9rem;
  }
  .brand span {
    display: none;
  }
}