:root {
  --bg: #0e1117;
  --surface: #161b22;
  --text: #c9d1d9;
  --heading: #e6edf3;
  --muted: #7d8590;
  --accent: #4493f8;
  --border: #21262d;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 15px;
}

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

.wrap { max-width: 720px; margin: 0 auto; padding: 0 1.25rem; }

/* --- Header --- */
header {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

nav { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; }

.brand { font-weight: 700; font-size: 1.1rem; color: var(--heading); text-decoration: none; }
.brand:hover { color: var(--accent); text-decoration: none; }

.nav-links { display: flex; gap: 1.25rem; font-size: 0.9rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* --- Hero --- */
.hero { padding: 3.5rem 0 2rem; }
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--heading);
  line-height: 1.25;
}
.hero p { margin: 0 0 1.5rem; color: var(--muted); max-width: 34rem; }

.btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #3b87e0; color: #fff; }

/* --- Sections --- */
section { padding: 2rem 0; }
section h2 {
  margin: 0 0 1rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--heading);
}

/* --- Features --- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0.5rem; }
.features dt { font-weight: 600; color: var(--heading); padding: 0.75rem 0 0.15rem; font-size: 0.95rem; }
.features dd { margin: 0; padding: 0 0 0.5rem; color: var(--muted); font-size: 0.88rem; border-bottom: 1px solid var(--border); }

/* --- Table --- */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { padding: 0.65rem 0.85rem; text-align: left; border-bottom: 1px solid var(--border); }
th { font-weight: 600; color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }

.note { margin-top: 0.75rem; font-size: 0.82rem; color: var(--muted); }

/* --- Footer --- */
footer {
  margin-top: 2rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}

/* --- Offer page (full text) --- */
.offer h1 { font-size: 1.3rem; margin: 2.5rem 0 0.5rem; color: var(--heading); }
.offer h2 { font-size: 1.05rem; margin: 2rem 0 0.5rem; color: var(--heading); border-bottom: 1px solid var(--border); padding-bottom: 0.35rem; }
.offer p { margin: 0.5rem 0; }
.offer ul { margin: 0.35rem 0; padding-left: 1.25rem; }
.offer li { margin-bottom: 0.3rem; }
.offer table { margin: 0.75rem 0; }
.offer strong { color: var(--heading); }
.offer .warn {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--surface);
  font-size: 0.88rem;
  color: var(--muted);
}