/* =====================================================================
   Unterweisungsmanager – Rebrush Klickdummy
   Design-System / Stylesheet
   Barrierefreiheit: EN 301 549 V3.2.1 / WCAG 2.1 AA
   Technologieneutral (HTML/CSS/Vanilla-JS) – portierbar nach Vuetify oder Twig
   ===================================================================== */

/* ---------- Design-Tokens ------------------------------------------- */
:root {
  /* Markenfarben (UNIVERSUM "UV.") */
  --uv-primary:        #0f3b50;   /* Petrol/Navy – Kopfzeile & Primäraktionen      */
  --uv-primary-hover:  #0b2c3d;
  --uv-primary-ink:    #ffffff;   /* Text auf Primärfläche – Kontrast 11.8:1       */
  --uv-accent:         #d80f1f;   /* UNIVERSUM-Rot – nur Akzent/Punkt, nicht Text  */

  /* Statusfarben (alle Kombinationen >= 4.5:1 auf Weiß bzw. Weiß darauf) */
  --ok-bg:     #e7f4ea;  --ok-fg:     #1b5e20;  --ok-border: #2e7d32;
  --info-bg:   #e8f1fb;  --info-fg:   #0b4a8f;  --info-border:#1565c0;
  --warn-bg:   #fdf3e3;  --warn-fg:   #8a5300;  --warn-border:#b9770e;
  --due-bg:    #fbeceb;  --due-fg:    #9b1c12;  --due-border: #c62828;

  /* Neutralwerte */
  --ink:        #1b1b1b;  /* Fließtext        – 15.8:1 auf Weiß */
  --ink-muted:  #515963;  /* Sekundärtext     – 7.1:1  auf Weiß (AA erfüllt) */
  --line:       #d6dade;  /* Trennlinien      */
  --line-strong:#b6bcc4;
  --surface:    #ffffff;
  --canvas:     #f4f6f8;  /* Seitenhintergrund */
  --sidebar:    #ffffff;

  /* Fokus-Indikator (WCAG 2.4.7 / 2.4.11) */
  --focus:      #1565c0;

  /* Form / Radius / Schatten */
  --radius:     10px;
  --radius-sm:  6px;
  --shadow:     0 1px 3px rgba(16,29,38,.10), 0 1px 2px rgba(16,29,38,.06);
  --shadow-lg:  0 10px 30px rgba(16,29,38,.18);

  /* Typo-Skala */
  --fs-300: .8125rem;  /* 13px – Meta            */
  --fs-400: .9375rem;  /* 15px – Basis           */
  --fs-500: 1.0625rem; /* 17px                   */
  --fs-700: 1.5rem;    /* 24px – Seitentitel     */
  --fs-800: 1.875rem;  /* 30px – Begrüßung       */

  --ff: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset / Grundlagen -------------------------------------- */
*,*::before,*::after { box-sizing: border-box; }
html { font-size: 100%; -webkit-text-size-adjust: 100%; }
html[data-fontsize="large"] { font-size: 118.75%; }   /* Große Schrift: 16 -> 19px */
body {
  margin: 0;
  font-family: var(--ff);
  font-size: var(--fs-400);
  line-height: 1.55;
  color: var(--ink);
  background: var(--canvas);
}
h1,h2,h3,h4,p,ul,ol { margin: 0; }
ul, ol { list-style: none; padding: 0; }
img,svg { display: block; }
[hidden] { display: none !important; }

/* ---------- Font-Awesome-Icons (lokal eingebunden) ----------------- */
i.icon {
  font-size: 1.125rem; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.25em; height: 1.25em;          /* gleichmäßige Klickfläche/Ausrichtung */
}
.burger i.icon { font-size: 1.25rem; }
.assignment__icon i.icon { font-size: 1.15rem; }
.alert > i.icon { font-size: 1.2rem; }
.nav__item i.icon { color: var(--uv-primary); }
a { color: var(--info-fg); }
a:hover { text-decoration: underline; }

/* Sichtbarer, konsistenter Fokus für ALLE interaktiven Elemente */
:where(a,button,input,select,textarea,[tabindex],summary,.accordion__trigger):focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
/* Landmark-Container werden programmatisch fokussiert (Routenwechsel / Skip-Link)
   -> kein sichtbarer Rahmen um den gesamten Bereich beim Laden */
#main:focus, #main:focus-visible,
.auth__main:focus, .auth__main:focus-visible,
#doc-main:focus, #doc-main:focus-visible { outline: none; }

/* Nur für Screenreader sichtbar */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* Skip-Link (WCAG 2.4.1) */
.skip-link {
  position: absolute; left: 12px; top: -60px;
  z-index: 1000;
  background: var(--uv-primary); color: #fff;
  padding: 10px 16px; border-radius: var(--radius-sm);
  font-weight: 600; text-decoration: none;
  transition: top .15s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- Marken-Wortmarke "UV." --------------------------------- */
.uv-mark { font-weight: 800; letter-spacing: -.5px; line-height: 1; color: var(--ink); }
.uv-mark .dot { color: var(--uv-accent); }
.uv-mark--on-dark { color: #fff; }

/* =====================================================================
   App-Layout
   ===================================================================== */
.app {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "header  header"      /* Header durchgezogen über die volle Breite */
    "sidebar main"        /* Seitenleiste, Inhalt und Footer darunter   */
    "sidebar footer";
  min-height: 100vh;
}

/* ---------- Kopfzeile ----------------------------------------------- */
.app__header {
  grid-area: header;
  display: flex; align-items: center; gap: 12px;
  padding: 8px 28px;
  min-height: 64px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.header__brand .uv-mark { font-size: 1.6rem; }
.avatar--sm { width: 34px; height: 34px; font-size: .8rem; }

/* Barrierefreiheits-Leiste (Kontrast + Schriftgröße) */
.a11y-bar { display: flex; align-items: center; gap: 6px; margin-right: 10px; }
.a11y-btn {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 6px 14px; border-radius: var(--radius-sm);
  background: transparent; border: 1px solid var(--line-strong);
  color: var(--ink); font: inherit; font-size: .8rem; font-weight: 600; cursor: pointer;
  white-space: nowrap;
}
.a11y-btn:hover { background: #eef1f4; }
.a11y-btn i.icon { color: var(--uv-primary); font-size: 1rem; }
.a11y-btn[aria-pressed="true"] { background: var(--uv-primary); color: #fff; border-color: var(--uv-primary); }
.a11y-btn[aria-pressed="true"] i.icon { color: #fff; }
@media (max-width: 980px) {
  .a11y-btn span { display: none; }
  .a11y-btn { padding: 0; width: 44px; justify-content: center; }
}

/* Benutzerprofil rechts oben im Header (Chip + Dropdown) */
.header__user { position: relative; }
.user-chip {
  display: flex; align-items: center; gap: 9px;
  background: transparent; border: 1px solid transparent;
  border-radius: var(--radius-sm); padding: 4px 12px 4px 4px;
  font: inherit; color: var(--ink); cursor: pointer; min-height: 44px;
}
.user-chip:hover { background: #eef1f4; }
.user-chip__name {
  font-weight: 600; font-size: .9rem; max-width: 180px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.user-chip__caret { font-size: .72rem; color: var(--ink-muted); width: auto; height: auto; transition: transform .18s ease; }
.user-chip[aria-expanded="true"] .user-chip__caret { transform: rotate(180deg); }

.user-menu {
  position: absolute; right: 0; top: calc(100% + 8px);
  min-width: 250px; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 6px; z-index: 120;
}
.user-menu__head { padding: 10px 12px 8px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.user-menu__head .who { font-weight: 700; }
.user-menu__head .role { font-size: var(--fs-300); color: var(--ink-muted); }
.user-menu a {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: var(--radius-sm);
  color: var(--ink); text-decoration: none; min-height: 44px;
}
.user-menu a:hover { background: #eef1f4; text-decoration: none; }
.user-menu a i.icon { color: var(--uv-primary); }

@media (max-width: 880px) {
  .user-chip__name { display: none; }   /* auf Mobil nur Avatar + Pfeil */
  .header__tools { display: none; }
}
.header__brand { display: flex; align-items: center; gap: 10px; }
.header__brand .uv-mark { font-size: 1.6rem; }
.header__product {
  font-weight: 600; color: var(--ink);
  border-left: 1px solid var(--line-strong);
  padding-left: 12px; font-size: var(--fs-400);
}
.header__spacer { flex: 1; }

/* Burger – blendet Sidebar auf schmalen Viewports ein/aus */
.burger {
  display: none;
  background: transparent; border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); min-width: 44px; min-height: 44px; padding: 8px 10px; cursor: pointer;
  color: var(--ink);
}

/* ---------- Seitenleiste / Navigation ------------------------------ */
.app__sidebar {
  grid-area: sidebar;
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
}
.sidebar__user {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
}
.avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: #e3e8ed; color: var(--uv-primary);
  display: grid; place-items: center; font-weight: 700; flex: none;
}
.sidebar__user .name { font-weight: 700; line-height: 1.2; }
.sidebar__user .role { font-size: var(--fs-300); color: var(--ink-muted); }
.user-actions { margin-left: auto; display: flex; gap: 2px; }
.icon-btn {
  background: transparent; border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: var(--radius-sm);   /* Zielgröße WCAG 2.5.5 */
  display: grid; place-items: center; color: var(--ink-muted);
}
.icon-btn:hover { background: #eef1f4; color: var(--ink); }

.sidebar__context {
  padding: 14px 16px 6px;
  font-size: var(--fs-300); color: var(--ink-muted);
}
.sidebar__context strong { display: block; color: var(--ink); font-size: var(--fs-400); }

.nav { padding: 62px 12px 16px; }   /* oben bündig zum Inhalt, Freiraum unter Header */
.nav__item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; margin: 2px 0; min-height: 44px;
  border-radius: var(--radius-sm);
  color: var(--ink); text-decoration: none; font-weight: 500;
  border-left: 3px solid transparent;
}
.nav__item:hover { background: #eef1f4; text-decoration: none; }
.nav__item[aria-current="page"] {
  background: #e8eef2;
  border-left-color: var(--uv-accent);
  font-weight: 700;
}
.nav__item .icon { color: var(--uv-primary); flex: none; }
.nav__badge {
  margin-left: auto; min-width: 22px; height: 22px; padding: 0 7px;
  border-radius: 11px; background: var(--due-border); color: #fff;
  font-size: var(--fs-300); font-weight: 700;
  display: grid; place-items: center;
}
.sidebar__foot { margin-top: auto; padding: 16px; }
.sidebar__foot .uv-mark { font-size: 1.4rem; }

/* ---------- Hauptbereich -------------------------------------------- */
.app__main {
  grid-area: main;
  /* oben Header-Höhe frei; links deutlicher Abstand (linke Linie),
     rechts bündig zum Header (rechte Linie) */
  padding: 64px 28px 48px clamp(28px, 5vw, 96px);
}
.page { max-width: none; margin: 0; }   /* rechte Kante via JS am „Schriftgröße"-Button ausgerichtet */

.breadcrumb { margin-bottom: 10px; font-size: var(--fs-300); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.breadcrumb li { color: var(--ink-muted); }
.breadcrumb li + li::before { content: "›"; margin-right: 6px; color: var(--line-strong); }
.breadcrumb a { color: var(--info-fg); }
.breadcrumb [aria-current="page"] { color: var(--ink); font-weight: 600; }

.page__title { font-size: var(--fs-700); font-weight: 700; margin-bottom: 4px; }
.page__intro { color: var(--ink-muted); margin-bottom: 22px; max-width: 60ch; }
.welcome { font-size: var(--fs-800); }

/* ---------- Karten -------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card__header {
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  font-weight: 700;
}
.card__body { padding: 20px; }
.card__footer {
  padding: 12px 20px; border-top: 1px solid var(--line);
  display: flex; justify-content: flex-end; gap: 10px;
}
.card__footer--left { justify-content: flex-start; }
/* Aufklappbarer Kasten-Header (Disclosure) */
.card__disclosure { margin: 0; }
.card__disclosure .accordion__trigger { border-radius: var(--radius) var(--radius) 0 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.stack > * + * { margin-top: 16px; }

/* ---------- KPI-Kacheln (Dashboard) -------------------------------- */
.kpi-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 24px; }
.kpi {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 4px;
}
.kpi__value { font-size: 2rem; font-weight: 800; line-height: 1; }
.kpi__label { color: var(--ink-muted); font-size: var(--fs-400); }
.kpi--due .kpi__value { color: var(--due-fg); }
.kpi--ok  .kpi__value { color: var(--ok-fg); }
.kpi--next { justify-content: center; }
.kpi__value--date { font-size: 1.7rem; }

/* Zähler im Disclosure-Trigger */
.accordion__count { margin-left: auto; font-size: var(--fs-300); color: var(--ink-muted); font-weight: 600; }
.accordion__count + .accordion__chevron { margin-left: 12px; }

/* Kompakte Liste (durchgeführte Unterweisungen in der Übersicht) – Zeilen mit Trennlinien */
.mini-list { display: grid; }
.mini-list__item {
  display: grid; grid-template-columns: 1fr auto; gap: 2px 16px; align-items: center;
  padding: 12px 2px; border-bottom: 1px solid var(--line);
}
.mini-list__item:last-child { border-bottom: 0; }
.mini-list__title { font-weight: 700; }
.mini-list__meta { grid-column: 1; color: var(--ink-muted); font-size: var(--fs-300); }
.mini-list__item .accordion__status { grid-column: 2; grid-row: 1 / span 2; }

/* ---------- Status-/Hinweisboxen (Live-Regionen) -------------------- */
.alert {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px; border-radius: var(--radius);
  border: 1px solid; font-weight: 500;
}
.alert .icon { flex: none; margin-top: 1px; }
.alert--ok   { background: var(--ok-bg);   color: var(--ok-fg);   border-color: var(--ok-border); }
.alert--info { background: var(--info-bg); color: var(--info-fg); border-color: var(--info-border); }
.alert--due  { background: var(--due-bg);  color: var(--due-fg);  border-color: var(--due-border); }

/* ---------- Listen / Unterweisungen --------------------------------- */
.assignment-list { display: grid; gap: 12px; }
.assignment {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px 18px;
  display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center;
}
.assignment__icon { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; flex: none; }
.assignment__icon--due  { background: var(--due-bg);  color: var(--due-fg); }
.assignment__icon--info { background: var(--info-bg); color: var(--info-fg); }
.assignment__title { font-weight: 700; }
.assignment__meta { color: var(--ink-muted); font-size: var(--fs-300); }
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: var(--fs-300); font-weight: 600;
}
.tag--bf { background: var(--info-bg); color: var(--info-fg); border: 1px solid var(--info-border); }

/* ---------- Buttons ------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-weight: 600; cursor: pointer;
  padding: 10px 18px; border-radius: var(--radius-sm);
  border: 1px solid transparent; text-decoration: none;
  min-height: 44px;  /* Zielgröße WCAG 2.5.5 / 2.5.8 */
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--uv-primary); color: var(--uv-primary-ink); }
.btn--primary:hover { background: var(--uv-primary-hover); }
.btn--ghost { background: var(--surface); color: var(--uv-primary); border-color: var(--line-strong); }
.btn--ghost:hover { background: #eef1f4; }
.btn--quiet { background: transparent; color: var(--info-fg); padding: 10px 12px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn .icon { flex: none; }

/* ---------- Akkordeon (Historie) ------------------------------------ */
.accordion { display: grid; gap: 10px; }
.accordion__item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
}
.accordion__trigger {
  width: 100%; text-align: left; cursor: pointer;
  background: transparent; border: 0; font: inherit;
  padding: 16px 18px; min-height: 56px;
  display: flex; align-items: center; gap: 12px;
}
.accordion__trigger:hover { background: #f7f9fa; }
.accordion__title { font-weight: 700; }
.accordion__status { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-300); font-weight: 600; }
.accordion__status--ok   { color: var(--ok-fg); }
.accordion__status--info { color: var(--info-fg); }
.accordion__chevron { transition: transform .18s ease; color: var(--ink-muted); }
.accordion__trigger[aria-expanded="true"] .accordion__chevron { transform: rotate(180deg); }
.accordion__panel { padding: 4px 18px 20px; border-top: 1px solid var(--line); }
.accordion__panel[hidden] { display: none; }

/* Detail-Definitionsliste */
.dl { display: grid; grid-template-columns: 200px 1fr; gap: 6px 16px; margin: 14px 0; }
.dl dt { color: var(--ink-muted); }
.dl dd { font-weight: 600; margin: 0; }
.section-label {
  text-transform: uppercase; letter-spacing: .06em;
  font-size: var(--fs-300); font-weight: 700; color: var(--ink-muted);
  margin: 18px 0 8px;
}

/* Historientabelle */
.history-table { width: 100%; border-collapse: collapse; }
.history-table caption { text-align: left; }
.history-table th, .history-table td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line);
}
.history-table th { font-size: var(--fs-300); color: var(--ink-muted); text-transform: uppercase; letter-spacing: .04em; }
.history-table td:last-child, .history-table th:last-child { text-align: right; }
.row-actions { display: inline-flex; gap: 6px; }

/* ---------- Formulare ----------------------------------------------- */
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; }
.field .req { color: var(--due-fg); }
.field .hint { color: var(--ink-muted); font-size: var(--fs-300); margin-top: 4px; }
.input-wrap { position: relative; display: flex; }
.input {
  width: 100%; font: inherit; color: var(--ink);
  padding: 12px; min-height: 48px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: #fff;
}
/* Platz für ein nachgestelltes Icon/Toggle im Eingabefeld */
.input-wrap .pw-toggle ~ .input,
.input-wrap .input { padding-right: 52px; }
.input:hover { border-color: #8a929c; }
.input:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; border-color: var(--focus); }
.input[aria-invalid="true"] { border-color: var(--due-border); background: #fff6f5; }
.field .error { color: var(--due-fg); font-size: var(--fs-300); margin-top: 6px; font-weight: 600; display: none; }
.field.has-error .error { display: block; }
.pw-toggle {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px;
}

/* ---------- Modal / Dialog ------------------------------------------ */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15,29,38,.55);
  display: grid; place-items: center; padding: 20px; z-index: 100;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); width: min(720px, 100%);
  max-height: 90vh; overflow: auto;
}
.modal--sm { width: min(480px, 100%); }
.modal__header {
  display: flex; align-items: center; gap: 12px;
  background: var(--uv-primary); color: #fff;
  padding: 16px 20px;
}
.modal__title { font-size: var(--fs-500); font-weight: 700; }
.modal__close { margin-left: auto; color: #fff; }
.modal__close:hover { background: rgba(255,255,255,.15); }
.modal__body { padding: 22px; }
.modal__footer { padding: 14px 22px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 10px; }

/* SCORM-Player (Vollbild) */
.modal-backdrop--player { padding: 24px; }
.modal--player {
  width: min(1100px, 100%);
  height: min(86vh, 780px);
  display: flex; flex-direction: column;
}
.player-stage {
  flex: 1; min-height: 0;
  background: var(--uv-primary); color: #fff;
  display: grid; place-items: center; text-align: center; padding: 40px 28px;
}
.player-stage:focus-visible { outline: 3px solid #fff; outline-offset: -6px; }
.player-stage__inner { max-width: 54ch; }
.player-stage__badge {
  width: 96px; height: 96px; border-radius: 50%; font-size: 2.4rem;
  background: rgba(255,255,255,.14); display: grid; place-items: center; margin: 0 auto 22px;
}
.player-stage__title { font-size: 1.6rem; font-weight: 800; }
.player-stage__hint { color: rgba(255,255,255,.85); margin-top: 12px; line-height: 1.6; }

@media (max-width: 520px) {
  .modal-backdrop--player { padding: 0; }
  .modal--player { height: 100vh; width: 100%; border-radius: 0; }
}

/* ---------- Fußzeile ------------------------------------------------ */
.app__footer {
  grid-area: footer;
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
  padding: 14px 28px; background: var(--surface);
  border-top: 1px solid var(--line);
  font-size: var(--fs-300); color: var(--ink-muted);
}
.app__footer nav { margin-left: auto; display: flex; gap: 18px; }
.app__footer a { color: var(--info-fg); }

/* ---------- Toast / Bestätigung ------------------------------------- */
.toast-region { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: grid; gap: 10px; }
.toast {
  background: var(--uv-primary); color: #fff;
  padding: 12px 16px; border-radius: var(--radius); box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 10px; max-width: 360px;
}
.toast--ok { background: var(--ok-fg); }

/* =====================================================================
   Auth / Login-Seite
   ===================================================================== */
.auth {
  min-height: 100vh;
  display: flex;
  flex-direction: column;                /* Header / Inhalt / Footer übereinander */
  background: var(--canvas);
}
/* Footer im Login: app__footer trägt grid-area:footer -> in Flexbox unwirksam,
   zusätzlich neutralisiert, damit volle Breite garantiert ist. */
.auth > .app__footer { grid-area: auto; width: 100%; }
.auth__bar {
  background: var(--surface); border-bottom: 1px solid var(--line);
  min-height: 64px; display: flex; align-items: center; gap: 12px; padding: 8px 28px;
}
.auth__bar .uv-mark { font-size: 1.6rem; }
.auth__main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 28px 16px; }
.auth-card {
  width: min(460px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.auth-card__head {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 22px; border-bottom: 1px solid var(--line);
}
.auth-card__head h1 { font-size: var(--fs-500); font-weight: 700; }
.auth-card__body { padding: 22px; }
.auth-card__foot {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
  padding: 16px 22px; border-top: 1px solid var(--line);
}
.auth-card__foot .spacer { flex: 1; }

/* Eingabefeld mit führendem Icon */
.input--with-icon { padding-left: 42px; }
.field__icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--ink-muted); pointer-events: none;
}

/* Sprachauswahl */
.lang-select {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 6px 10px; background: #fff; font: inherit; cursor: pointer;
}

/* Marken-Login-Button (Rot, kontrastsicher: Weiß auf #c20d1b ≈ 5:1) */
.btn--brand { background: #c20d1b; color: #fff; }
.btn--brand:hover { background: #a50b17; }

@media (max-width: 880px) {
  .auth__bar .uv-mark--right { display: none; }
}

/* =====================================================================
   Responsiv / Reflow (WCAG 1.4.10 – bis 320px nutzbar)
   ===================================================================== */
@media (max-width: 880px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas: "header" "main" "footer";
  }
  .burger { display: inline-flex; }
  .app__sidebar {
    position: fixed; inset: 0 auto 0 0; width: 280px; z-index: 90;
    transform: translateX(-100%); transition: transform .2s ease;
    box-shadow: var(--shadow-lg);
  }
  .app__sidebar.is-open { transform: translateX(0); }
  .grid-2, .kpi-row { grid-template-columns: 1fr; }
  .dl { grid-template-columns: 1fr; gap: 0 0; }
  .dl dt { margin-top: 10px; }
}
@media (max-width: 520px) {
  .app__main { padding: 18px 14px 40px; }
  .assignment { grid-template-columns: auto 1fr; }
  .assignment .btn { grid-column: 1 / -1; justify-content: center; }
}

/* ---------- Reduzierte Bewegung (WCAG 2.3.3) ------------------------ */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- Dunkles Layout fürs OS (optional, kontraststark) -------- */
@media (prefers-contrast: more) {
  :root { --line: #9aa1aa; --ink-muted: #3a4049; }
}

/* =====================================================================
   Hochkontrast-Modus (manueller Umschalter, data-contrast="high")
   Verstärkt Kontraste deutlich über die AA-Schwellen hinaus.
   ===================================================================== */
:root[data-contrast="high"] {
  --ink: #000000;
  --ink-muted: #1a1a1a;     /* fast schwarz statt grau */
  --line: #000000;
  --line-strong: #000000;
  --canvas: #ffffff;
  --surface: #ffffff;
  --focus: #0b3d91;
  --info-fg: #00337a;
  --ok-fg: #0a5614;
  --due-fg: #98000a;
}
[data-contrast="high"] .card,
[data-contrast="high"] .assignment,
[data-contrast="high"] .kpi,
[data-contrast="high"] .accordion__item {
  border-width: 2px; border-color: #000; box-shadow: none;
}
[data-contrast="high"] .app__header,
[data-contrast="high"] .app__sidebar,
[data-contrast="high"] .app__footer,
[data-contrast="high"] .user-menu,
[data-contrast="high"] .modal { border-color: #000 !important; }
[data-contrast="high"] .input { border-width: 2px; border-color: #000; }
[data-contrast="high"] .alert { border-width: 2px; }
[data-contrast="high"] a { text-decoration: underline; }
[data-contrast="high"] .btn { border: 2px solid #000; }
[data-contrast="high"] .nav__item[aria-current="page"] { outline: 2px solid #000; outline-offset: -2px; }
/* graue Sekundärtexte hart auf Schwarz ziehen */
[data-contrast="high"] .header__product,
[data-contrast="high"] .page__intro,
[data-contrast="high"] .assignment__meta,
[data-contrast="high"] .kpi__label,
[data-contrast="high"] .user-chip__name,
[data-contrast="high"] .sidebar__context,
[data-contrast="high"] .breadcrumb li,
[data-contrast="high"] .hint { color: #000 !important; }