:root {
  --bg: #0b0d12;
  --surface: #11141a;
  --surface-2: #161a22;
  --text: #e8eef9;
  --muted: #a7b1c6;
  --primary: #6aa7ff;
  --primary-700: #4e86d3;
  --success: #36d399;
  --warn: #f9a43f;
  --danger: #ef5b73;
  --border: #242a36;
  --shadow: rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, var(--bg), #0f131a 40%, #0c1016 100%);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(1.2) blur(8px);
  background: rgba(11, 13, 18, 0.6);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  background: radial-gradient(120% 120% at 10% 10%, var(--primary) 0%, #88c0ff 35%, #3d73c0 70%, #274b80 100%);
  color: #071324;
  font-weight: 800;
}
.title { font-weight: 700; letter-spacing: 0.3px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
}
.nav a:hover { color: var(--text); }

.hero {
  padding: 64px 0 36px;
}
.hero-inner {
  text-align: center;
}
.hero h1 { font-size: 44px; margin: 0 0 10px; }
.hero p { color: var(--muted); margin: 0 auto 22px; max-width: 720px; }
.cta { display: flex; gap: 12px; justify-content: center; }

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
}
.btn:hover { background: #1a1f29; }
.btn.primary { background: linear-gradient(180deg, var(--primary), var(--primary-700)); border: none; color: #081223; font-weight: 700; }
.btn.small { padding: 6px 10px; font-size: 13px; }

.section { padding: 36px 0; }
.section.alt { background: linear-gradient(180deg, #0f131a, #0b0f15); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { margin: 0 0 6px; }
.section-desc { margin: 0 0 18px; color: var(--muted); }

.grid {
  display: grid;
  gap: 16px;
}
.cards {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.card {
  background: radial-gradient(100% 120% at 0% 0%, #161b25 0%, var(--surface) 60%);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 10px 24px var(--shadow);
  padding: 16px;
}
.card h3 { margin: 0 0 8px; }
.pill {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
}

.form { margin-top: 8px; }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.settings-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 8px; margin-top: 8px; }
.settings-row select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0c1118;
  color: var(--text);
}
.settings-row input[type="text"] { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: #0c1118; color: var(--text); }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
input[type="number"], input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0c1118;
  color: var(--text);
}
.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
}
.presets { display: flex; gap: 8px; flex-wrap: wrap; }

.legend-points { margin: 8px 0 0; padding-left: 18px; color: var(--muted); }
.legend-points li { margin: 4px 0; }

.score {
  font-weight: 700;
}
.score.good { color: var(--success); }
.score.ok { color: var(--warn); }
.score.bad { color: var(--danger); }

.notes { color: var(--muted); }
.notes li { margin: 6px 0; }

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  border-top: 1px solid var(--border);
}
.disclaimer { color: var(--muted); }

@media (max-width: 640px) {
  .hero h1 { font-size: 34px; }
}