/* Оформленные выпадающие списки (chates-select.js). Сам <select> спрятан, но
   остаётся в форме; на его месте — кнопка .cs-btn, список — .cs-list. */

.cs-hidden {
    position: absolute !important;
    width: 1px !important; height: 1px !important;
    opacity: 0 !important; pointer-events: none !important;
    margin: 0 !important; padding: 0 !important; border: 0 !important;
}

.cs-btn {
    --cs-brand: var(--brand, #7c5cff);
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    max-width: 100%;
    min-height: 40px;
    padding: 8px 12px 8px 14px;
    box-sizing: border-box;
    border: 1.5px solid rgba(109, 91, 208, .28);
    border-radius: 12px;
    background: var(--field-bg, #fff);
    color: var(--text, #222);
    font: inherit;
    font-size: 15px;
    line-height: 1.25;
    text-align: left;
    cursor: pointer;
    vertical-align: middle;
    transition: border-color .15s, box-shadow .15s, background-color .15s;
}
.cs-btn.cs-block { display: flex; width: 100%; }
.cs-btn:hover { border-color: var(--cs-brand); }
.cs-btn:focus-visible, .cs-btn.is-open { outline: 0; border-color: var(--cs-brand); box-shadow: inset 0 0 0 1px var(--cs-brand); }
.cs-btn:disabled { opacity: .5; cursor: default; }
.cs-text { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cs-caret { flex: 0 0 auto; color: var(--muted, #8a8794); transition: transform .18s ease; }
.cs-btn.is-open .cs-caret { transform: rotate(180deg); color: var(--cs-brand); }
.dark-theme .cs-btn { background: var(--field-bg, #1f1b2b); color: var(--text, #e8e6ef); border-color: rgba(159, 139, 239, .32); }

/* Список: на компьютере — меню под кнопкой */
.cs-list {
    position: fixed;
    z-index: 100060;
    max-width: calc(100vw - 16px);
    box-sizing: border-box;
    padding: 6px;
    border: 1px solid rgba(0, 0, 0, .08);
    border-radius: 14px;
    background: var(--panel-bg, #fff);
    color: var(--text, #222);
    box-shadow: 0 12px 34px rgba(20, 15, 40, .18), 0 2px 6px rgba(0, 0, 0, .06);
    opacity: 0;
    transform: translateY(-4px) scale(.98);
    transform-origin: top center;
    transition: opacity .14s ease, transform .14s ease;
}
.cs-list.is-shown { opacity: 1; transform: none; }
.cs-scroll { max-height: min(340px, 60vh); overflow-y: auto; overscroll-behavior: contain; }
.dark-theme .cs-list { background: var(--panel-bg, #252330); color: var(--text, #e8e6ef); border-color: rgba(255, 255, 255, .08); box-shadow: 0 12px 34px rgba(0, 0, 0, .5); }

.cs-opt {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    padding: 8px 10px 8px 12px;
    border-radius: 10px;
    font-size: 15px;
    line-height: 1.3;
    cursor: pointer;
    user-select: none;
}
.cs-opt-text { flex: 1 1 auto; min-width: 0; }
.cs-check { flex: 0 0 auto; color: var(--brand, #7c5cff); visibility: hidden; }
.cs-opt.is-sel { color: var(--brand, #7c5cff); font-weight: 600; }
.cs-opt.is-sel .cs-check { visibility: visible; }
.cs-opt:hover, .cs-opt.is-act { background: rgba(124, 92, 255, .1); }
.cs-opt.is-dis { opacity: .4; cursor: default; }
.cs-opt.is-dis:hover { background: none; }
.cs-group { padding: 10px 12px 4px; font-size: 12px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase; color: var(--muted, #8a8794); }
.dark-theme .cs-opt.is-sel, .dark-theme .cs-check { color: #b9a6ff; }
.dark-theme .cs-opt:hover, .dark-theme .cs-opt.is-act { background: rgba(160, 140, 255, .14); }

/* Телефон: шторка снизу с затемнением */
.cs-back {
    position: fixed; inset: 0; z-index: 100059;
    background: rgba(10, 8, 20, .45);
    opacity: 0; transition: opacity .16s ease;
}
.cs-back.is-shown { opacity: 1; }
.cs-list.cs-sheet {
    left: 0; right: 0; bottom: 0; top: auto;
    max-width: none;
    padding: 8px 10px calc(12px + env(safe-area-inset-bottom));
    border-radius: 20px 20px 0 0;
    border: 0;
    transform: translateY(100%);
    transition: transform .2s cubic-bezier(.2, .8, .2, 1), opacity .12s;
    opacity: 1;
}
.cs-list.cs-sheet.is-shown { transform: none; }
.cs-sheet::before {
    content: ''; display: block; width: 40px; height: 4px; margin: 2px auto 8px;
    border-radius: 2px; background: rgba(0, 0, 0, .15);
}
.dark-theme .cs-sheet::before { background: rgba(255, 255, 255, .2); }
.cs-title { padding: 2px 8px 10px; font-size: 14px; font-weight: 700; color: var(--muted, #8a8794); }
.cs-sheet .cs-scroll { max-height: 62vh; }
.cs-sheet .cs-opt { min-height: 48px; font-size: 16px; padding: 10px 14px; }

@media (prefers-reduced-motion: reduce) {
    .cs-list, .cs-back, .cs-caret, .cs-list.cs-sheet { transition: none; }
}

/* Никогда не шире своего места: ни кнопка, ни (на всякий случай) спрятанный
   <select> не должны растягивать страницу вбок на узком экране */
.cs-btn { min-width: 0; }
label > .cs-btn, td > .cs-btn { max-width: 100%; }