:root {
  --bg: #0b0d12;
  --surface: #141821;
  --surface-2: #1b212d;
  --text: #e7eaf0;
  --muted: #9aa3b2;
  --accent: #6c7cff;
  --accent-hover: #8590ff;
  --see: #4ec9a8;
  --never: #e0746a;
  --border: #232a37;
  --radius: 14px;
}

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

html { -webkit-font-smoothing: antialiased; }

body {
  background: radial-gradient(1200px 600px at 50% -10%, #161c28 0%, var(--bg) 60%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 72px 24px 56px;
}

/* Hero */
.hero { text-align: center; margin-bottom: 40px; }
.hero.compact { margin-bottom: 28px; }

.logo {
  font-size: 56px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
  text-shadow: 0 0 32px rgba(108, 124, 255, 0.5);
}

.hero h1 {
  font-size: 44px;
  letter-spacing: 0.06em;
  font-weight: 700;
}

.tagline { color: var(--muted); font-size: 18px; margin-top: 8px; }

.beta-badge {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-hover);
  background: rgba(108, 124, 255, 0.12);
  border: 1px solid rgba(108, 124, 255, 0.35);
  border-radius: 999px;
}

/* Sections */
section { margin-bottom: 32px; }

.lead p { font-size: 18px; color: #cdd3de; }

h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

/* CTA */
.cta { text-align: center; margin: 44px 0; }

.download-btn {
  display: inline-block;
  padding: 16px 40px;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent) 0%, #5563e0 100%);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(108, 124, 255, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.download-btn:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
  box-shadow: 0 12px 40px rgba(108, 124, 255, 0.5);
}

.req { color: var(--muted); font-size: 14px; margin-top: 14px; }

/* Cards */
.note, .install, .detail {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.note p + p { margin-top: 12px; }
.note p, .detail p, .install li { color: #cdd3de; }

.install ol { padding-left: 22px; }
.install li { margin-bottom: 8px; }

.detail ul { padding-left: 20px; }
.detail li { margin-bottom: 10px; color: #cdd3de; }

/* Two-column privacy lists */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.col ul { list-style: none; }
.col li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: #cdd3de;
}
.col.see h2 { color: var(--see); }
.col.never h2 { color: var(--never); }
.col.see li::before {
  content: "✓";
  position: absolute; left: 0;
  color: var(--see); font-weight: 700;
}
.col.never li::before {
  content: "✕";
  position: absolute; left: 0;
  color: var(--never); font-weight: 700;
}

.stand { color: var(--muted); font-size: 13px; margin-top: 12px; }

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

/* Footer */
footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
footer a { text-decoration: none; }
footer a:hover { text-decoration: underline; }
.sep { margin: 0 10px; opacity: 0.5; }

@media (max-width: 560px) {
  .wrap { padding: 48px 18px 40px; }
  .hero h1 { font-size: 36px; }
  .cols { grid-template-columns: 1fr; }
}