/*
 * LUKA – Material-3-inspiriertes Design-System.
 * Reines CSS, kein Build-Schritt. Schriften werden ausschließlich lokal
 * ausgeliefert (siehe @font-face unten) – bewusst KEIN Google-Fonts-CDN,
 * um DSGVO-Probleme durch IP-Übertragung an Google zu vermeiden.
 */

/* ---------- Selbst gehostete Schriften ---------- */
@font-face {
  font-family: "Roboto";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/roboto/roboto_5.2.10_latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Roboto";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/assets/fonts/roboto/roboto_5.2.10_latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Roboto";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/roboto/roboto_5.2.10_latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Material Symbols Outlined";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url("/assets/fonts/material-symbols/material-symbols-outlined_5.2.45_latin-400-normal.woff2") format("woff2");
}

.icon {
  font-family: "Material Symbols Outlined", sans-serif;
  font-weight: normal;
  font-style: normal;
  font-size: 1.25rem;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  display: inline-flex;
  vertical-align: middle;
  -webkit-font-feature-settings: "liga";
  font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

/* ---------- Design-Tokens: Farben (Material 3, Blau-Seed #2563eb) ---------- */
:root {
  color-scheme: light;

  --md-primary: #2f5fd8;
  --md-on-primary: #ffffff;
  --md-primary-container: #dbe1ff;
  --md-on-primary-container: #001947;

  --md-secondary: #575e71;
  --md-on-secondary: #ffffff;
  --md-secondary-container: #dbe2f9;
  --md-on-secondary-container: #141b2c;

  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;

  --md-success: #146c2e;
  --md-on-success: #ffffff;
  --md-success-container: #c3f2cb;
  --md-on-success-container: #002107;

  --md-surface: #fbf8ff;
  --md-surface-dim: #dbd9e0;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #f5f2fb;
  --md-surface-container: #efedf5;
  --md-surface-container-high: #e9e7f0;
  --md-surface-container-highest: #e3e2ea;
  --md-on-surface: #1a1b21;
  --md-on-surface-variant: #45464f;

  --md-outline: #767680;
  --md-outline-variant: #c6c6d0;

  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.24), 0 1px 3px 1px rgba(0, 0, 0, 0.10);
  --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.24), 0 2px 6px 2px rgba(0, 0, 0, 0.10);
  --elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.10), 0 1px 3px rgba(0, 0, 0, 0.24);

  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 16px;
  --radius-xl: 28px;
  --radius-full: 999px;

  --font-sans: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/*
 * Dunkles Farbschema: greift automatisch über prefers-color-scheme, kann
 * aber per data-theme-Attribut (siehe Theme-Switch in base.html) manuell
 * erzwungen bzw. auf "light" zurückgesetzt werden.
 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --md-primary: #b3c5ff;
    --md-on-primary: #00297a;
    --md-primary-container: #123f9f;
    --md-on-primary-container: #dbe1ff;

    --md-secondary: #bfc6dc;
    --md-on-secondary: #293042;
    --md-secondary-container: #3f4759;
    --md-on-secondary-container: #dbe2f9;

    --md-error: #ffb4ab;
    --md-on-error: #690005;
    --md-error-container: #93000a;
    --md-on-error-container: #ffdad6;

    --md-success: #8ed99f;
    --md-on-success: #00390e;
    --md-success-container: #005318;
    --md-on-success-container: #c3f2cb;

    --md-surface: #131318;
    --md-surface-dim: #131318;
    --md-surface-container-lowest: #0e0e13;
    --md-surface-container-low: #1c1c22;
    --md-surface-container: #202026;
    --md-surface-container-high: #2a2a31;
    --md-surface-container-highest: #35353c;
    --md-on-surface: #e3e2ea;
    --md-on-surface-variant: #c6c6d0;

    --md-outline: #90909a;
    --md-outline-variant: #45464f;

    --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 1px 3px 1px rgba(0, 0, 0, 0.3);
    --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.5), 0 2px 6px 2px rgba(0, 0, 0, 0.3);
    --elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.5);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --md-primary: #b3c5ff;
  --md-on-primary: #00297a;
  --md-primary-container: #123f9f;
  --md-on-primary-container: #dbe1ff;

  --md-secondary: #bfc6dc;
  --md-on-secondary: #293042;
  --md-secondary-container: #3f4759;
  --md-on-secondary-container: #dbe2f9;

  --md-error: #ffb4ab;
  --md-on-error: #690005;
  --md-error-container: #93000a;
  --md-on-error-container: #ffdad6;

  --md-success: #8ed99f;
  --md-on-success: #00390e;
  --md-success-container: #005318;
  --md-on-success-container: #c3f2cb;

  --md-surface: #131318;
  --md-surface-dim: #131318;
  --md-surface-container-lowest: #0e0e13;
  --md-surface-container-low: #1c1c22;
  --md-surface-container: #202026;
  --md-surface-container-high: #2a2a31;
  --md-surface-container-highest: #35353c;
  --md-on-surface: #e3e2ea;
  --md-on-surface-variant: #c6c6d0;

  --md-outline: #90909a;
  --md-outline-variant: #45464f;

  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 1px 3px 1px rgba(0, 0, 0, 0.3);
  --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.5), 0 2px 6px 2px rgba(0, 0, 0, 0.3);
  --elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* ---------- Reset & Basis-Typografie ---------- */
* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--md-on-surface);
  background: var(--md-surface);
  min-height: 100vh;
}

h1, h2, h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  line-height: 1.25;
  margin: 0 0 0.5rem;
  color: var(--md-on-surface);
}

h1 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); font-weight: 700; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

a {
  color: var(--md-primary);
  text-decoration: none;
  font-weight: 500;
}
a:hover, a:focus-visible {
  text-decoration: underline;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--md-surface-container-high);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-s);
}

hr {
  border: none;
  border-top: 1px solid var(--md-outline-variant);
  margin: 1rem 0;
}

/* ---------- Layout ---------- */
.page {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

.page--wide {
  max-width: 1080px;
}

@media (min-width: 600px) {
  .page { padding: 2rem 1.5rem 3rem; }
}

/* ---------- Top App Bar ---------- */
.app-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--md-surface-container);
  border-bottom: 1px solid var(--md-outline-variant);
  min-height: 64px;
}

.app-bar__title {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--md-on-surface);
  white-space: nowrap;
}

.app-bar__nav {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.5rem;
  font-size: 0.9rem;
}

.app-bar__nav a,
.app-bar__nav button.link {
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-full);
  color: var(--md-on-surface-variant);
  font-weight: 500;
}

.app-bar__nav a:hover,
.app-bar__nav button.link:hover {
  background: var(--md-surface-container-high);
  text-decoration: none;
}

.app-bar__nav a.active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

@media (max-width: 640px) {
  .app-bar { flex-wrap: wrap; }
  .app-bar__nav { width: 100%; margin-left: 0; justify-content: flex-start; }
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-height: 40px;
  padding: 0;
  margin: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--md-on-surface-variant);
  box-shadow: none;
}
.icon-btn:hover {
  background: var(--md-surface-container-high);
  filter: none;
  box-shadow: none;
}

/* ---------- Topbar (Seiten-Header, z.B. "Aufgaben" + Aktionen) ---------- */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ---------- Cards / Surfaces ---------- */
.card {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-l);
  padding: 1.25rem;
  box-shadow: var(--elevation-1);
}

.card + .card {
  margin-top: 1rem;
}

.subject {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
}

.error {
  color: var(--md-error);
  font-size: 0.875rem;
  margin-top: 0.75rem;
}

.success-text {
  color: var(--md-success);
  font-size: 0.9rem;
}

/* ---------- Formulare / Text-Fields ---------- */
label {
  display: block;
  margin: 0.9rem 0 0.3rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="search"],
select,
textarea {
  width: 100%;
  box-sizing: border-box;
  font: inherit;
  font-size: 1rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-s);
  background: var(--md-surface-container-lowest);
  color: var(--md-on-surface);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="search"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 1px var(--md-primary);
}

::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

/* ---------- Buttons ---------- */
a.btn,
a.btn:hover,
a.btn:focus-visible {
  text-decoration: none;
}

button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  border: 0;
  border-radius: var(--radius-full);
  padding: 0.65rem 1.35rem;
  min-height: 40px;
  cursor: pointer;
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--elevation-1);
  transition: box-shadow 0.15s ease, filter 0.15s ease;
  margin-top: 1rem;
}

button:hover,
.btn:hover {
  box-shadow: var(--elevation-2);
  filter: brightness(1.06);
}

button:disabled,
.btn:disabled {
  opacity: 0.5;
  cursor: default;
  box-shadow: none;
  filter: none;
}

.btn-outlined {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
  box-shadow: none;
}
.btn-outlined:hover {
  background: var(--md-surface-container-high);
  filter: none;
  box-shadow: none;
}

.btn-text {
  background: transparent;
  color: var(--md-primary);
  box-shadow: none;
  padding: 0.5rem 0.75rem;
}
.btn-text:hover {
  background: var(--md-surface-container-high);
  filter: none;
  box-shadow: none;
}

.btn-tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  box-shadow: none;
}
.btn-tonal:hover {
  filter: brightness(0.97);
  box-shadow: none;
}

.btn-danger {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
  box-shadow: none;
}
.btn-danger:hover {
  filter: brightness(0.97);
  box-shadow: none;
}

.btn-sm {
  min-height: 32px;
  padding: 0.4rem 0.9rem;
  font-size: 0.825rem;
  margin-top: 0;
}

/* Buttons, die wie unauffällige Links aussehen sollen (z.B. "abmelden") */
button.link {
  background: none;
  border: 0;
  box-shadow: none;
  color: var(--md-primary);
  padding: 0;
  margin: 0;
  min-height: auto;
  font-weight: 500;
  border-radius: 0;
}
button.link:hover {
  filter: none;
  box-shadow: none;
  text-decoration: underline;
}

/* ---------- Badges / Chips ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.badge-done {
  background: var(--md-success-container);
  color: var(--md-on-success-container);
}
.badge-open {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
}

/* ---------- Aufgabenliste ---------- */
ul.tasks {
  list-style: none;
  padding: 0;
  margin: 0;
}
ul.tasks li {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-m);
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.6rem;
}

/* ---------- Tabellen (responsive) ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-m);
  border: 1px solid var(--md-outline-variant);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--md-surface-container-lowest);
}

table th,
table td {
  text-align: left;
  padding: 0.65rem 0.9rem;
  white-space: nowrap;
}

table thead th {
  background: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  font-weight: 600;
  border-bottom: 1px solid var(--md-outline-variant);
}

table tbody tr {
  border-bottom: 1px solid var(--md-outline-variant);
}
table tbody tr:last-child {
  border-bottom: none;
}
table tbody tr:hover {
  background: var(--md-surface-container-low);
}

/* ---------- Layout-Helfer ---------- */
.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
  flex-wrap: wrap;
}
.form-row > .field {
  flex: 1;
  min-width: 180px;
}

.field-inline {
  display: flex;
  gap: 0.4rem;
}
.field-inline input {
  flex: 1;
  min-width: 0;
}

@media (max-width: 640px) {
  .form-row { flex-direction: column; align-items: stretch; }
}

/* ---------- QR-Karte ---------- */
/* QR-Codes brauchen unabhängig vom Farbschema einen hellen Hintergrund,
   sonst sind sie im Dark Mode kaum lesbar/scanbar. */
.qr-chip {
  display: inline-block;
  background: #ffffff;
  padding: 6px;
  border-radius: var(--radius-s);
  border: 1px solid var(--md-outline-variant);
  line-height: 0;
  cursor: zoom-in;
  transform-origin: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.qr-chip.is-zoomed {
  position: relative;
  z-index: 20;
  transform: scale(2);
  box-shadow: var(--elevation-3);
  cursor: zoom-out;
}

.qr-card {
  text-align: center;
  max-width: 420px;
  margin: 1rem auto;
}
.qr-card__img {
  width: 100%;
  max-width: 320px;
  height: auto;
  display: block;
}
.qr-code {
  font-size: 1.6rem;
  letter-spacing: 0.15em;
  font-weight: 700;
}

/* ---------- Print (z.B. QR-Karte) ---------- */
@media print {
  .app-bar, .no-print, hr { display: none !important; }
  body { margin: 0; background: #fff; }
  .qr-card { box-shadow: none; border: none; }
}