/* Metronome marketing site — shared styles
 * Palette mirrors the iOS app's "Midnight" (dark) and "Ivory" (light) themes
 * so the website reads as a continuation of the app, not a separate brand. */

:root {
  --bg: #0b0e17;
  --surface: #131729;
  --surface-elevated: #1a1f35;
  --text: #e8ecf4;
  --muted: #7b839c;
  --accent: #4d9eff;
  --downbeat: #ffb84d;
  --beat-inactive: #252a3c;
  --divider: #2a3048;
  --shadow-color: 0 0 0;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #faf8f5;
    --surface: #ffffff;
    --surface-elevated: #f0ede8;
    --text: #1a1a1a;
    --muted: #73706a;
    --accent: #3366cc;
    --downbeat: #e68a2e;
    --beat-inactive: #dcd8d2;
    --divider: #e2dfd9;
    --shadow-color: 0 0 0;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  background: var(--accent);
  color: #fff;
  padding: 12px 16px;
  border-radius: 8px;
  font-weight: 600;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Site nav */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: 960px;
  margin: 0 auto;
}
.site-nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text);
  font-size: 16px;
}
.site-nav .brand:hover { text-decoration: none; }
.site-nav .brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
}
.site-nav a {
  color: var(--muted);
  font-size: 14px;
}
.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 14px 0;
}

/* Footer */
footer.site-footer {
  margin-top: 80px;
  padding: 32px 24px;
  border-top: 1px solid var(--divider);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}
footer.site-footer ul {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: inline-flex;
  gap: 20px;
}
footer.site-footer a { color: var(--muted); }

/* Beat-dot animation — used in CTA pill on the marketing page.
 * Sequential pulse gives a "1-2-3-4 count-in" feel, with the first
 * dot styled as a downbeat (orange + larger pulse) for on-brand polish. */
.beat-dots {
  display: inline-flex;
  gap: 5px;
  align-items: center;
}
.beat-dots .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--beat-inactive);
  animation: beat 2s infinite ease-out;
}
.beat-dots .dot:nth-child(1) {
  animation-name: beat-down;
  animation-delay: 0ms;
}
.beat-dots .dot:nth-child(2) { animation-delay: 500ms; }
.beat-dots .dot:nth-child(3) { animation-delay: 1000ms; }
.beat-dots .dot:nth-child(4) { animation-delay: 1500ms; }

@keyframes beat {
  0%, 30%, 100% { background: var(--beat-inactive); transform: scale(1); }
  5% { background: var(--accent); transform: scale(1.4); }
}
@keyframes beat-down {
  0%, 30%, 100% { background: var(--beat-inactive); transform: scale(1); }
  5% { background: var(--downbeat); transform: scale(1.5); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Mobile */
@media (max-width: 600px) {
  .site-nav ul { gap: 14px; }
  .container { padding: 0 18px; }
}