:root {
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-card-sub: #334155;
  --bg-input: #0b1120;
  
  --border-color: #334155;
  --border-focus: #38bdf8;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-accent: #38bdf8;
  
  --color-primary: #0284c7;
  --color-primary-hover: #0369a1;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

input, select, textarea, button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}