/**
 * Custom Dropdown-Komponente (ersetzt native <select>)
 *
 * Vorteile gegenüber native <select>:
 * - Volle Kontrolle über Popup-Breite (immer = Container-Breite)
 * - Optionen brechen bei langen Texten automatisch um (kein Abschneiden)
 * - Responsive ohne Breiten-Probleme
 * - Einheitliches Design auf Mobile + Desktop + in Outlook / iOS / Android
 * - Barrierefrei (ARIA-Combobox, Tastatur-Navigation)
 *
 * Nutzung: <div class="custom-select">...</div> + /assets/js/custom-select.js
 */

.custom-select {
    position: relative;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    font-family: inherit;
}

.custom-select__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    margin: 0;
    padding: 0;
    border: 0;
    pointer-events: none;
}

.custom-select__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-dark, #333);
    background: var(--bg-white, #fff);
    border: 1.5px solid var(--border-color, #e9e9eb);
    border-radius: 0.5rem;
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.custom-select__trigger:hover {
    border-color: var(--primary-blue, #0064ad);
}

.custom-select__trigger:focus-visible,
.custom-select--open .custom-select__trigger {
    outline: none;
    border-color: var(--primary-blue, #0064ad);
    box-shadow: 0 0 0 3px rgba(0, 100, 173, 0.12);
}

.custom-select__value {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.custom-select__value--placeholder {
    color: var(--text-light, #999);
}

.custom-select__chevron {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--primary-blue, #0064ad);
    transition: transform 0.2s ease;
}

.custom-select--open .custom-select__chevron {
    transform: rotate(180deg);
}

/* === Panel === */
.custom-select__panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 1000;
    max-height: 340px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 0.5rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 0.25rem;
}

.custom-select__panel[hidden] { display: none; }

.custom-select__group {
    padding: 0.25rem 0;
}

.custom-select__group + .custom-select__group {
    border-top: 1px solid #f0f0f0;
    margin-top: 0.25rem;
    padding-top: 0.5rem;
}

.custom-select__group-label {
    padding: 0.4rem 0.75rem 0.3rem;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--primary-blue, #0064ad);
}

/* === Options === */
.custom-select__option {
    display: block;
    width: 100%;
    padding: 0.6rem 0.85rem;
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.35;
    color: var(--text-dark, #333);
    background: transparent;
    border: 0;
    border-radius: 0.35rem;
    text-align: left;
    cursor: pointer;
    white-space: normal;     /* Umbruch bei langen Titeln */
    word-break: normal;
    overflow-wrap: anywhere;  /* lange Wörter umbrechen statt abschneiden */
    transition: background 0.12s ease;
}

.custom-select__option:hover,
.custom-select__option:focus-visible,
.custom-select__option.is-active {
    outline: none;
    background: #eef5fb;
    color: var(--primary-blue, #0064ad);
}

.custom-select__option.is-selected {
    background: #e0ecf5;
    color: var(--primary-blue, #0064ad);
    font-weight: 600;
}

/* Fehler-Zustand */
.custom-select.has-error .custom-select__trigger {
    border-color: #d9534f;
    box-shadow: 0 0 0 3px rgba(217, 83, 79, 0.12);
}

/* Mobile: Panel nutzt ganze Viewport-Breite wenn Container sehr schmal ist */
@media (max-width: 480px) {
    .custom-select__panel {
        max-height: 60vh;
    }
    .custom-select__option {
        padding: 0.7rem 0.85rem;
        font-size: 0.9rem;
    }
}