:root {
  --bg: #0A0A0F;
  --bg-elev: #14141C;
  --border: #1F1F2A;
  --text: #F5F5F7;
  --text-dim: #A0A0B0;
  --accent: #00E5A0;
  --accent-dim: #00B380;
}

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

html {
  background: var(--bg);
  color-scheme: dark;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}

header.site-header .brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

header.site-header nav {
  display: flex;
  gap: 24px;
}

header.site-header nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}

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

h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

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

p, li {
  color: var(--text);
  font-size: 16px;
}

p {
  margin-bottom: 14px;
}

ul, ol {
  margin: 0 0 16px 20px;
}

li {
  margin-bottom: 6px;
}

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

a:hover {
  text-decoration: underline;
}

.meta {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 32px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 16px 0;
}

.card strong {
  color: var(--accent);
}

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
}

footer.site-footer a {
  color: var(--text-dim);
  margin: 0 12px;
}

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

.hero {
  text-align: center;
  padding: 80px 24px 48px;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
}

.hero p.lead {
  font-size: 19px;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.cards-grid .card {
  margin: 0;
  text-align: left;
  transition: border-color 0.2s, transform 0.2s;
}

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

.cards-grid .card a {
  color: var(--text);
  display: block;
}

.cards-grid .card h3 {
  margin: 0 0 6px;
  color: var(--accent);
}

.cards-grid .card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
}

.contact-block {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
}

.contact-block .email {
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
}

code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--accent);
}

@media (max-width: 600px) {
  .hero { padding: 48px 20px 32px; }
  .hero h1 { font-size: 36px; }
  h1 { font-size: 28px; }
  h2 { font-size: 19px; }
  .container { padding: 32px 20px 64px; }
  header.site-header { padding: 16px 20px; }
  header.site-header nav { gap: 16px; }
  header.site-header nav a { font-size: 13px; }
}