/**
 * Accessibility Styles (Datepicker + Timepicker + Skip-Link)
 *
 * Stellt deutlich sichtbare Tastatur-Fokus-Indikatoren bereit (WCAG 2.1 AA
 * — 1.4.11 Non-text Contrast, 2.4.7 Focus Visible) und implementiert die
 * "Zum Inhalt springen"-Sprungmarke (2.4.1 Bypass Blocks).
 */

/* -------------------------------------------------------------- */
/*  Skip-Link / Sprungmarke                                        */
/* -------------------------------------------------------------- */

/* Standardmäßig versteckt (nicht display:none, sondern visuell off-screen,
   damit Screenreader+Tastatur ihn finden). Sichtbar sobald Fokus drauf. */
.skip-to-content {
  position: absolute;
  left: -10000px;
  top: 0;
  z-index: 100000;
  background: #0066cc;
  color: #ffffff !important;
  padding: 12px 20px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 0 0 6px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: none;
}

.skip-to-content:focus,
.skip-to-content:focus-visible {
  left: 0;
  outline: 3px solid #ffffff;
  outline-offset: -6px;
}

.skip-to-content:hover {
  color: #ffffff !important;
  text-decoration: underline;
}

@media (forced-colors: active) {
  .skip-to-content {
    background: Canvas;
    color: CanvasText !important;
    border: 2px solid CanvasText;
  }
  .skip-to-content:focus,
  .skip-to-content:focus-visible {
    outline: 3px solid Highlight;
  }
}

/* Day-Cells: deutlicher Fokusrahmen */
.ui-datepicker a.ui-state-default:focus,
.ui-datepicker .ui-datepicker-prev:focus,
.ui-datepicker .ui-datepicker-next:focus {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 1px #ffffff;
}

/* Browser, die :focus-visible unterstützen, bekommen ihn nur bei Keyboard-
   Navigation – Maus-Klicks zeigen keinen ablenkenden Rahmen */
@supports selector(:focus-visible) {
  .ui-datepicker a.ui-state-default:focus,
  .ui-datepicker .ui-datepicker-prev:focus,
  .ui-datepicker .ui-datepicker-next:focus {
    outline: none;
    box-shadow: none;
  }
  .ui-datepicker a.ui-state-default:focus-visible,
  .ui-datepicker .ui-datepicker-prev:focus-visible,
  .ui-datepicker .ui-datepicker-next:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 0 1px #ffffff;
  }
}

/* High-Contrast / Windows Forced Colors Mode */
@media (forced-colors: active) {
  .ui-datepicker a.ui-state-default:focus,
  .ui-datepicker a.ui-state-default:focus-visible,
  .ui-datepicker .ui-datepicker-prev:focus,
  .ui-datepicker .ui-datepicker-next:focus,
  .ui-datepicker .ui-datepicker-prev:focus-visible,
  .ui-datepicker .ui-datepicker-next:focus-visible {
    outline: 3px solid Highlight;
    outline-offset: 2px;
  }
}

/* Ausgewählter Tag (aria-selected="true") soll auch visuell hervorgehoben
   bleiben, wenn Focus woanders hin wandert */
.ui-datepicker td[aria-selected="true"] > a.ui-state-default {
  font-weight: 700;
  text-decoration: underline;
}

/* Gesperrte Tage sollen klar erkennbar sein */
.ui-datepicker td[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

/* Datepicker-Input zeigt aria-expanded="true" während Picker offen ist */
#datepicker[aria-expanded="true"] {
  outline-color: #0066cc;
}

/* "Weiter zur Produktwahl"-Button: deutlicher Keyboard-Fokus.
   Der Button hat im disabled-State pointer-events:none und opacity:0.5 –
   trotzdem soll der Tastatur-Fokus klar erkennbar sein. */
#goBrezn:focus {
  outline: 3px solid #0066cc;
  outline-offset: 3px;
  box-shadow: 0 0 0 1px #ffffff;
}

@supports selector(:focus-visible) {
  #goBrezn:focus {
    outline: none;
    box-shadow: none;
  }
  #goBrezn:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 3px;
    box-shadow: 0 0 0 1px #ffffff;
  }
}

@media (forced-colors: active) {
  #goBrezn:focus,
  #goBrezn:focus-visible {
    outline: 3px solid Highlight;
    outline-offset: 3px;
  }
}

/* Screenreader-only Utility (für eventuelle Live-Region) */
.dp-sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* -------------------------------------------------------------- */
/*  Timepicker Accessibility                                       */
/* -------------------------------------------------------------- */

/* Sichtbarer Fokus auf dem Timepicker-Input */
input.ui-timepicker-input:focus {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

@supports selector(:focus-visible) {
  input.ui-timepicker-input:focus {
    outline: none;
  }
  input.ui-timepicker-input:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
  }
}

/* Liste: deutlich sichtbarer Highlight für das per Tastatur markierte Item.
   Library setzt .ui-timepicker-selected — wir verstärken Kontrast. */
.ui-timepicker-list li.ui-timepicker-selected {
  background: #0066cc !important;
  color: #ffffff !important;
}

.ui-timepicker-list li[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
}

@media (forced-colors: active) {
  input.ui-timepicker-input:focus,
  input.ui-timepicker-input:focus-visible {
    outline: 3px solid Highlight;
  }
  .ui-timepicker-list li.ui-timepicker-selected {
    background: Highlight !important;
    color: HighlightText !important;
  }
}