:root {
  --bg-0: #0a0a0b;
  --bg-1: #111113;
  --bg-2: #17171a;
  --bg-3: #1d1d21;
  --border-subtle: #1f1f23;
  --border-soft: #2a2a30;
  --border-strong: #36363d;
  --text-primary: #ededee;
  --text-secondary: #a1a1aa;
  --text-tertiary: #6b6b73;
  --accent-blue: #6b8eff;
  --accent-blue-bright: #93aaff;
  --tint-blue: rgba(107, 142, 255, 0.10);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-0);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img { max-width: 100%; display: block; }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-2);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: var(--text-primary);
  color: var(--bg-0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand-mark.small {
  width: 18px;
  height: 18px;
  font-size: 11px;
  border-radius: 4px;
}
.brand-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 24px;
}
.nav-links a {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}
.nav-links a:hover { color: var(--text-primary); }

/* === HERO === */
.hero {
  padding: 110px 0 80px;
  text-align: left;
}
.hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-blue);
  background: var(--tint-blue);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(107, 142, 255, 0.2);
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 760px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 36px;
  line-height: 1.55;
}
.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: background 140ms var(--ease), color 140ms var(--ease), border-color 140ms var(--ease), transform 140ms var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--text-primary);
  color: var(--bg-0);
}
.btn-primary:hover {
  background: #fff;
  color: var(--bg-0);
}
.btn-ghost {
  background: var(--bg-2);
  color: var(--text-secondary);
  border-color: var(--border-soft);
}
.btn-ghost:hover {
  background: var(--bg-3);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

/* === FEATURES === */
.features {
  padding: 60px 0;
  border-top: 1px solid var(--border-subtle);
}
.feature {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 60px;
  align-items: center;
  padding: 50px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.feature:last-child { border-bottom: none; }
.feature-reverse .feature-text { order: 2; }
.feature-reverse .feature-shot { order: 1; }
.feature-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  margin-bottom: 14px;
}
.feature h2 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 14px;
  max-width: 460px;
}
.feature p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  max-width: 480px;
}
.feature-shot {
  background: var(--bg-1);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.feature-shot img {
  border-radius: 6px;
  width: 100%;
  height: auto;
}

/* === VALUES === */
.values {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-1);
}
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.value {
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}
.value h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.value p {
  color: var(--text-secondary);
  font-size: 13.5px;
  line-height: 1.6;
}

/* === INSTALL === */
.install {
  padding: 90px 0;
  border-top: 1px solid var(--border-subtle);
}
.install h2 {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  text-align: center;
}
.install-sub {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 50px;
}
.install-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.install-card {
  background: var(--bg-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
}
.install-step {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 1px solid var(--border-soft);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
}
.install-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.install-card p {
  color: var(--text-secondary);
  font-size: 13.5px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.install-card .btn {
  padding: 8px 14px;
  font-size: 13px;
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 36px 0;
  background: var(--bg-1);
}
.footer-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}
.footer-links {
  display: flex;
  gap: 22px;
}
.footer-links a {
  color: var(--text-tertiary);
  font-size: 13px;
}
.footer-links a:hover { color: var(--text-primary); }
.footer-note {
  width: 100%;
  text-align: center;
  font-size: 11.5px;
  color: var(--text-tertiary);
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 10px;
}

/* === PRIVACY PAGE === */
.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px 100px;
}
.legal h1 {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.legal .legal-date {
  color: var(--text-tertiary);
  font-size: 13px;
  margin-bottom: 36px;
}
.legal h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 36px;
  margin-bottom: 12px;
}
.legal p, .legal ul {
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.7;
  margin-bottom: 14px;
}
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 6px; }
.legal a { color: var(--accent-blue); }
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 30px;
}
.legal-back:hover { color: var(--text-primary); }

/* === RESPONSIVE === */
@media (max-width: 760px) {
  .feature {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 0;
  }
  .feature-reverse .feature-text { order: 1; }
  .feature-reverse .feature-shot { order: 2; }
  .value-grid { grid-template-columns: 1fr; }
  .install-cards { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 50px; }
  .hero h1 { font-size: 36px; }
  .hero-sub { font-size: 15px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 12px; }
}