:root {
  --bg: #070b14;
  --bg-card: rgba(15, 23, 42, 0.72);
  --text: #e8eef9;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --ok: #4ade80;
  --border: rgba(148, 163, 184, 0.18);
  --shadow: 0 24px 80px rgba(2, 8, 23, 0.55);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(56, 189, 248, 0.18), transparent 60%),
    radial-gradient(900px 500px at 90% 0%, rgba(34, 211, 238, 0.12), transparent 55%),
    var(--bg);
  line-height: 1.55;
}

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

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 20, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  color: #031525;
  font-size: 14px;
  font-weight: 800;
}
.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
}
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.hero {
  padding: 72px 0 48px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.lead {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 18px;
  max-width: 58ch;
}
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}
.pill {
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.55);
  color: #cbd5e1;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #031525;
}
.btn-secondary {
  border-color: var(--border);
  color: var(--text);
  background: rgba(15, 23, 42, 0.55);
}

.hero-card {
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.stat {
  display: grid;
  gap: 12px;
}
.stat-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: rgba(2, 6, 23, 0.35);
}
.stat-label { color: var(--muted); font-size: 12px; }
.stat-value { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; }
.stat-note { color: #cbd5e1; font-size: 13px; }

section { padding: 28px 0 10px; }
.section-title {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.02em;
}
.section-sub {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 70ch;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 16px;
  padding: 18px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card code {
  font-size: 12px;
  background: rgba(2, 6, 23, 0.45);
  padding: 2px 6px;
  border-radius: 4px;
  color: #cbd5e1;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
}
th { color: #cbd5e1; font-weight: 600; }
td { color: var(--muted); }
.metric-good { color: var(--ok); font-weight: 600; }

.faq details {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.45);
  padding: 12px 14px;
  margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 600; }

.donate-bar {
  position: sticky;
  bottom: 0;
  z-index: 30;
  border-top: 1px solid var(--border);
  background: rgba(7, 11, 20, 0.92);
  backdrop-filter: blur(12px);
}
.donate-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
}
.donate-text { color: var(--muted); font-size: 14px; }
.donate-text strong { color: var(--text); }

footer {
  padding: 28px 0 110px;
  color: var(--muted);
  font-size: 13px;
}

a.dl-pending {
  opacity: 0.55;
  pointer-events: none;
  cursor: not-allowed;
}

.dl-card-recommended {
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.25), var(--shadow);
}
.dl-badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #031525;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.dl-badge[hidden] { display: none; }
.checksum {
  margin-top: 10px;
  font-size: 11px;
  color: var(--muted);
  word-break: break-all;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  line-height: 1.45;
}
.checksum[hidden] { display: none; }
.dl-hero-hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}
.list-muted {
  color: var(--muted);
  line-height: 1.7;
  padding-left: 1.2rem;
  margin: 0;
}
.list-muted li { margin-bottom: 6px; }
.breadcrumbs {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
}
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--text); }
@media (max-width: 600px) {
  .donate-inner { flex-direction: column; align-items: flex-start; }
  .nav-links { gap: 10px; font-size: 13px; }
}