/* Base CSS — variables, resets, layout wrapper */

/* Palette & tokens */
:root {
  --md-bg: #f5f7fb;
  --md-surface: #ffffff;
  --md-on-surface: #111827;
  --md-muted: #6b7280;

  --md-primary: #1976d2;
  --md-primary-variant: #115293;
  --md-secondary: #7c4dff;
  --md-tertiary: #00bfa5;

  --md-error: #b00020;

  --elevation-1: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.04);
  --elevation-2: 0 3px 6px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --elevation-3: 0 6px 18px rgba(16, 24, 40, 0.12), 0 2px 4px rgba(16, 24, 40, 0.06);
}

/* Reset / base */
* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: 'Roboto', Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--md-bg);
  color: var(--md-on-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  font-size: 16px;
}

/* Layout wrapper */
.site_header,
.content,
.site_footer {
  max-width: 880px;
  margin: 28px auto;
  padding: 0 20px;
}

.content {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Utility elevation */
.elevation-1 {
  box-shadow: var(--elevation-1);
}

.elevation-2 {
  box-shadow: var(--elevation-2);
}

.elevation-3 {
  box-shadow: var(--elevation-3);
}