:root {
  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  /* Dark theme colors */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #3a3a3a;
  --text-primary: rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.55);
  --accent-primary: #4f46e5;
  --accent-hover: #6366f1;
  --accent-light: #818cf8;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);

  color-scheme: light dark;
  color: var(--text-primary);
  background-color: var(--bg-primary);

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-weight: 500;
  color: var(--accent-light);
  text-decoration: inherit;
}
a:hover {
  color: var(--accent-hover);
}

body {
  margin: 0;
  padding: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

#root {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-primary);
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
  color: var(--text-primary);
}

button {
  border-radius: 8px;
  border: 1px solid var(--border-color);
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.25s ease;
}
button:hover {
  border-color: var(--accent-primary);
  background-color: var(--bg-tertiary);
}
button:focus,
button:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Primary button styles */
.btn-primary {
  background-color: var(--accent-primary) !important;
  color: white !important;
  border-color: var(--accent-primary) !important;
}
.btn-primary:hover {
  background-color: var(--accent-hover) !important;
  border-color: var(--accent-hover) !important;
}

/* Light theme overrides */
@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --accent-primary: #4f46e5;
    --accent-hover: #4338ca;
    --accent-light: #6366f1;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    color: var(--text-primary);
    background-color: var(--bg-primary);
  }
  
  button {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
  }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}