*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3d8bfd;
  --accent-hover: #5a9fff;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  color: var(--accent-hover);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.logo {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text);
}

.logo:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--muted);
}

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

.site-main {
  flex: 1;
  max-width: 48rem;
  margin: 0 auto;
  padding: 3rem 2rem;
  width: 100%;
}

.hero h1,
.content h1 {
  margin-top: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.hero p,
.content p {
  color: var(--muted);
  font-size: 1.125rem;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.625rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  font-weight: 500;
}

.btn:hover {
  background: var(--accent-hover);
  color: #fff;
}

.site-footer {
  padding: 1.5rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer p {
  margin: 0;
}