:root {
  --bg: #0d0f14;
  --surface: #161921;
  --surface2: #1e2330;
  --border: #2a3040;
  --accent: #4fffb0;
  --accent2: #ff6b6b;
  --accent3: #ffd166;
  --text: #e8ecf4;
  --muted: #6b7591;
  --card-radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  overscroll-behavior: none;
}

body {
  font-family: 'Syne', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

button { -webkit-appearance: none; appearance: none; }

[hidden] { display: none !important; }

/* Mobile-only tab visibility */
.tab-mobile-only { display: none; }