:root {
  --bg: #0b0f14;
  --bg-elev: #0f141b;
  --text: #e6eef8;
  --muted: #a9b4c0;
  --primary: #4f8cff;
  --primary-600: #3d73d4;
  --accent: #7bf1a8;
  --danger: #ff6b6b;
  --card: #111823;
  --border: #1c2430;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html, body {
  padding: 0;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 20, 0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.brand svg {
  width: 28px;
  height: 28px;
}

.brand span {
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 8px;
}

@media (max-width: 820px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .mobile-sheet {
    position: fixed;
    inset: 64px 0 0 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 20px;
    display: none;
  }
  .mobile-sheet.open {
    display: block;
  }
  .mobile-sheet a {
    display: block;
    color: var(--muted);
    text-decoration: none;
    padding: 12px 4px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-sheet a:last-child {
    border-bottom: 0;
  }
}

.hero {
  position: relative;
  padding: 96px 0 48px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 520px;
  background: radial-gradient(60% 60% at 50% 0%, rgba(79, 140, 255, 0.25), rgba(11, 15, 20, 0));
  pointer-events: none;
}

.kicker {
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  font-size: 48px;
  line-height: 1.1;
  margin: 12px 0 16px;
}

.subtitle {
  color: var(--muted);
  font-size: 18px;
}

.cta {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  margin-top: 28px;
}

.button-primary {
  background: linear-gradient(180deg, var(--primary), var(--primary-600));
  color: #fff;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.button-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  background: var(--bg-elev);
}

.section {
  padding: 48px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

@media (max-width: 1000px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  h1 {
    font-size: 34px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.0));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}

.card h3 {
  margin: 0 0 6px;
}

.card p {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(123, 241, 168, 0.08);
  color: var(--accent);
  border: 1px solid rgba(123, 241, 168, 0.25);
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 12px;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
}

.footer a {
  color: var(--muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--text);
}

.prose h1, .prose h2, .prose h3, .prose h4 {
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}

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

.prose a {
  color: var(--primary);
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

.breadcrumbs {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 12px;
}

.breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--text);
}