:root {
  --bg: #1A1A1A;
  --card: #222222;
  --border: #2D2D2D;
  --text: #FFFFFF;
  --text-secondary: #8A8A8E;
  --accent: #FF4500;
  --link: #FF8C00;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding: 0;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

header {
  text-align: center;
  margin-bottom: 56px;
}

.logo {
  font-size: 48px;
  margin-bottom: 12px;
}

.brand {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--text);
  text-transform: uppercase;
  text-decoration: none;
}

.brand .accent { color: var(--accent); }

h1 {
  font-size: 36px;
  font-weight: 800;
  margin: 40px 0 8px;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 40px 0 12px;
  color: var(--text);
}

h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--text);
}

p, li {
  font-size: 16px;
  color: #D0D0D2;
  margin-bottom: 12px;
}

ul, ol {
  padding-left: 22px;
  margin-bottom: 16px;
}

li { margin-bottom: 8px; }

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 140, 0, 0.3);
  transition: border-color .15s;
}

a:hover { border-color: var(--link); }

.effective {
  display: inline-block;
  padding: 6px 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.callout {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 20px 0;
}

.callout p { margin: 0; color: var(--text); }

footer {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

footer a {
  color: var(--text-secondary);
  border: none;
  margin: 0 10px;
}

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

.home-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .home-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: transform .15s, border-color .15s;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card .icon {
  font-size: 28px;
  margin-bottom: 10px;
}

.card .title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.card .sub {
  font-size: 13px;
  color: var(--text-secondary);
}