:root {
  --bg: #0b0c10;
  --panel: #12141b;
  --text: #e9eef5;
  --muted: #b8c2cf;
  --link: #89b4ff;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.container {
  margin: 0 auto;
  padding: 0 20px;
  max-width: 1100px;
  padding-left: 1rem;
  padding-right: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 12, 16, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.2px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.main-content {
  padding: 34px 0 44px 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

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

.page h1,
.hero h1 {
  margin: 0 0 10px 0;
  font-size: 38px;
  letter-spacing: 0.2px;
}

.hero {
  padding: 22px 0 10px 0;
}

.hero-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.hero-lead {
  margin: 10px 0 14px 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 74ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0 10px 0;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.btn-primary {
  background: rgba(137, 180, 255, 0.16);
  color: var(--text);
}

.btn-primary:hover {
  background: rgba(137, 180, 255, 0.22);
  text-decoration: none;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

.hero-note {
  margin: 12px 0 0 0;
  color: var(--muted);
  font-size: 14px;
  max-width: 78ch;
}

.section {
  margin-top: 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 22px;
  box-shadow: var(--shadow);
}

.section h2 {
  margin: 0 0 10px 0;
  font-size: 18px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 14px;
  background: rgba(255, 255, 255, 0.02);
}

.feature h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.page {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.page h2 {
  margin-top: 18px;
  font-size: 18px;
}

.page p,
.page li {
  color: var(--muted);
}

.page strong {
  color: var(--text);
}

figure {
  margin: 14px 0;
}

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .page h1,
  .hero h1 {
    font-size: 30px;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 22px;
  box-shadow: var(--shadow);
  margin-top: 18px;
}