/* Base styles - resets, typography, colors */
:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;

  /* Color palette */
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #020817;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-accent: #4798f0;
  --color-border: rgba(148, 163, 184, 0.25);
  --color-card-bg: rgba(15, 23, 42, 0.8);

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;

  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;

  /* Shadows */
  --shadow-sm: 0 4px 12px -2px rgba(15, 23, 42, 0.3);
  --shadow-md: 0 25px 50px -12px rgba(15, 23, 42, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: var(--space-xl) var(--space-md) var(--space-md);
  background: radial-gradient(circle at top, var(--color-bg-primary), var(--color-bg-secondary));
  color: var(--color-text-primary);
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  text-align: center;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

h2 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  text-align: center;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

p {
  margin: 0 0 var(--space-md) 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}