/* ==========================================================================
   CampusFlow Design Tokens
   Quelle: docs/11-ui-ux/02-design-system.md · übernommen aus prototype/assets/css
   Komponenten verwenden ausschliesslich diese Variablen, nie feste Farbwerte.
   ========================================================================== */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-ext-wght-normal.1ad231aac0a8.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/inter-latin-wght-normal.260c81a4759b.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;

  /* Flaechen und Neutrale */
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --surface-raised: #F1F5F9;
  --border: #E2E8F0;
  --border-input: #858FA1;
  --text: #0F172A;
  --text-muted: #475569;
  --text-subtle: #64748B;
  --overlay: rgb(15 23 42 / 0.45);

  /* Hauptfarbe Indigo */
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --on-primary: #FFFFFF;
  --primary-subtle: #EEF2FF;
  --primary-text: #4338CA;

  /* Semantische Farben: Text / Flaeche */
  --success: #15803D;
  --success-subtle: #F0FDF4;
  --warning: #B45309;
  --warning-subtle: #FFFBEB;
  --danger: #B91C1C;
  --danger-subtle: #FEF2F2;
  --info: var(--primary-text);
  --info-subtle: var(--primary-subtle);

  /* Typografie */
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --text-display: 1.875rem;  /* 30 */
  --text-h1: 1.5rem;         /* 24 */
  --text-h2: 1.25rem;        /* 20 */
  --text-h3: 1rem;           /* 16 */
  --text-body: 1rem;         /* 16 */
  --text-sm: 0.875rem;       /* 14 */
  --text-xs: 0.75rem;        /* 12 */

  /* Spacing (4-px-Raster) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Schatten – nur fuer schwebende Elemente */
  --shadow-sm: 0 1px 2px rgb(15 23 42 / 0.04), 0 1px 3px rgb(15 23 42 / 0.04);
  --shadow-md: 0 4px 12px rgb(15 23 42 / 0.08), 0 1px 3px rgb(15 23 42 / 0.06);
  --shadow-lg: 0 20px 48px rgb(15 23 42 / 0.18), 0 2px 6px rgb(15 23 42 / 0.08);

  /* Layout */
  --sidebar-w: 248px;
  --sidebar-rail-w: 72px;
  --topbar-h: 56px;
  --bottomnav-h: 64px;
  --content-max: 1200px;

  /* Bewegung */
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --dur: 160ms;
}

/* Dunkelmodus: explizit gewaehlt */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0B1120;
  --surface: #111827;
  --surface-raised: #1F2937;
  --border: #1F2937;
  --border-input: #6B7280;
  --text: #F1F5F9;
  --text-muted: #94A3B8;
  --text-subtle: #94A3B8;
  --overlay: rgb(0 0 0 / 0.6);

  --primary: #818CF8;
  --primary-hover: #A5B4FC;
  --on-primary: #0B1120;
  --primary-subtle: #1E1B4B;
  --primary-text: #A5B4FC;

  --success: #4ADE80;
  --success-subtle: #052E16;
  --warning: #FBBF24;
  --warning-subtle: #422006;
  --danger: #F87171;
  --danger-subtle: #450A0A;

  --shadow-sm: none;
  --shadow-md: 0 8px 24px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 24px 56px rgb(0 0 0 / 0.55);
}

/* Dunkelmodus ohne JavaScript: Systemeinstellung, sofern nicht hell erzwungen */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0B1120;
    --surface: #111827;
    --surface-raised: #1F2937;
    --border: #1F2937;
    --border-input: #6B7280;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --text-subtle: #94A3B8;
    --overlay: rgb(0 0 0 / 0.6);
    --primary: #818CF8;
    --primary-hover: #A5B4FC;
    --on-primary: #0B1120;
    --primary-subtle: #1E1B4B;
    --primary-text: #A5B4FC;
    --success: #4ADE80;
    --success-subtle: #052E16;
    --warning: #FBBF24;
    --warning-subtle: #422006;
    --danger: #F87171;
    --danger-subtle: #450A0A;
    --shadow-sm: none;
    --shadow-md: 0 8px 24px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 24px 56px rgb(0 0 0 / 0.55);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root { --dur: 0ms; }
}