/* ==========================================================================
   German Life Toolkit — Design System Tokens & Base Styles
   ========================================================================== */

:root {
  /* Color Palette — Light Mode */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;

  --text-primary: #0f172a;       /* Dark Navy */
  --text-secondary: #475569;     /* Slate */
  --text-muted: #94a3b8;         /* Muted Gray */

  --accent-primary: #4338ca;     /* Indigo */
  --accent-hover: #3730a3;
  --accent-light: #eef2ff;

  --success-color: #059669;      /* Green for Net & Savings */
  --success-light: #ecfdf5;
  --warning-color: #d97706;      /* Orange */
  --warning-light: #fffbeb;
  --danger-color: #dc2626;       /* Red for Deductions */
  --danger-light: #fef2f2;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.dark {
  /* Color Palette — Dark Mode */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-surface: #171f30;
  --bg-card: #171f30;
  --bg-card-hover: #1e293b;
  --border-subtle: #243049;
  --border-strong: #334155;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #6366f1;
  --accent-hover: #818cf8;
  --accent-light: #1e1b4b;

  --success-color: #10b981;
  --success-light: #064e3b;
  --warning-color: #f59e0b;
  --warning-light: #78350f;
  --danger-color: #f87171;
  --danger-light: #7f1d1d;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 100%;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}