:root {
  --bg: #0b1220;
  --bg-soft: #0f1a2c;
  --surface: #111f34;
  --surface-2: #172944;
  --text: #eef5ff;
  --text-soft: #a8b8d0;
  --line: rgba(168, 184, 208, 0.18);
  --accent: #5eead4;
  --accent-strong: #2dd4bf;
  --accent-ink: #042f2e;
  --warm: #fbbf24;
  --danger: #fb7185;
  --cat-social: #8aa1b8;
  --cat-video: #c08a66;
  --cat-gaming: #9b8ab8;
  --cat-messaging: #7fa98c;
  --cat-education: #b5a26a;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg: #f6f8fb;
  --bg-soft: #eef3fa;
  --surface: #ffffff;
  --surface-2: #eaf1fa;
  --text: #102033;
  --text-soft: #53657d;
  --line: rgba(16, 32, 51, 0.12);
  --accent: #0f766e;
  --accent-strong: #0d9488;
  --accent-ink: #ecfdf5;
  --shadow: 0 24px 60px rgba(16, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(94, 234, 212, 0.14), transparent 60%),
    radial-gradient(700px 500px at 110% 10%, rgba(251, 191, 36, 0.08), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}