:root {
  --bg: #0f0f1e;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --text: #f1f3f9;
  --text-muted: #9ca3b9;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font: 15px/1.6 -apple-system, "Segoe UI", "Avenir Next", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(99, 102, 241, 0.25) 0, transparent 40%),
    radial-gradient(circle at 90% 100%, rgba(139, 92, 246, 0.2) 0, transparent 40%),
    var(--bg);
  min-height: 100vh;
}

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

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

/* ── Hero ────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 30px 20px 50px;
}

.hero-logo {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.5);
  margin-bottom: 18px;
}

.kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--accent-hover);
  text-transform: uppercase;
}

h1 {
  margin: 8px 0 6px;
  font-size: clamp(34px, 6vw, 54px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h1 .accent {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  margin: 8px 0 28px;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-muted);
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: var(--bg-card-hover);
}

.btn.primary {
  background: var(--gradient);
  border: none;
  color: #fff;
  box-shadow: 0 8px 28px rgba(99, 102, 241, 0.4);
}

.btn.primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 10px 36px rgba(99, 102, 241, 0.55);
}

.tiny { font-size: 13px; }
.muted { color: var(--text-muted); }

/* ── Cards ───────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  margin-bottom: 18px;
  backdrop-filter: blur(10px);
}

.card h2 {
  margin: 0 0 18px;
  font-size: 22px;
  font-weight: 700;
}

/* ── Downloads ───────────────────────────────────── */
.download-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-bottom: 14px;
}

.dl-card {
  display: flex;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-card);
  transition: all 0.15s ease;
  align-items: center;
}

.dl-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.dl-card.highlight {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.dl-icon {
  font-size: 32px;
  flex-shrink: 0;
}

.dl-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.dl-body strong {
  color: var(--text);
  font-size: 15px;
}

.dl-body span {
  color: var(--text-muted);
  font-size: 13px;
}

.dl-body .dl-file {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--accent-hover);
  margin-top: 4px;
}

/* ── Steps ───────────────────────────────────────── */
.steps {
  margin: 0;
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.steps li {
  padding-left: 4px;
}

.steps li small {
  display: block;
  margin-top: 4px;
}

.hint {
  margin: 8px 0 0;
  padding: 10px 14px;
  background: rgba(99, 102, 241, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  font-size: 13px;
}

.hint.warn {
  background: rgba(251, 146, 60, 0.08);
  border-left-color: #fb923c;
}

.hint summary {
  cursor: pointer;
  font-weight: 600;
}

.hint p, .hint ul {
  margin: 8px 0 0;
}

.hint ul {
  padding-left: 20px;
}

.emoji-icon {
  display: inline-block;
  vertical-align: middle;
}

/* ── Features ────────────────────────────────────── */
.features-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-card);
}

.feature-icon {
  font-size: 24px;
  margin-bottom: 8px;
}

.feature strong {
  font-size: 15px;
  color: var(--text);
}

.feature span {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}

/* ── FAQ ─────────────────────────────────────────── */
.faq-card details {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.faq-card details:last-child {
  border-bottom: none;
}

.faq-card summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  padding: 4px 0;
}

.faq-card summary:hover {
  color: var(--accent-hover);
}

.faq-card p {
  margin: 8px 0 4px;
  color: var(--text-muted);
}

/* ── Footer ──────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 30px 0 10px;
  color: var(--text-muted);
}

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

/* ── Mobile ──────────────────────────────────────── */
@media (max-width: 600px) {
  .page { padding: 24px 14px 40px; }
  .card { padding: 20px; }
  .hero { padding: 20px 10px 30px; }
  .hero-logo { width: 80px; height: 80px; }
}