:root {
  --bg: #f6f7f9;
  --text: #1a1a2e;
  --accent: #f6821f;
  --card: #ffffff;
  --border: #e3e6ea;
}

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

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

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

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

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

.hero {
  padding: 4rem 0;
  max-width: 640px;
}

.hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.15rem;
  color: #4a4a5e;
  margin-bottom: 2rem;
}

code {
  background: #eceef2;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

.btn:hover {
  filter: brightness(0.92);
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: var(--card);
  padding: 1.25rem 0;
  color: #6a6a7e;
  font-size: 0.9rem;
}