/**
 * @file: bvi.css
 * @description: Версия сайта для слабовидящих — стили панели и режимов отображения
 * @dependencies: bvi.js (логика переключения)
 * @created: 2026-09-07
 */

/* ===== Глобальные focus-visible стили (WCAG 2.4.7) ===== */
*:focus-visible {
    outline: 3px solid #2563eb;
    outline-offset: 2px;
}

/* ===== Панель BVI ===== */
.bvi-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999999;
    background: #f7f7f7;
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
    font-family: Arial, serif !important;
    padding: 10px 16px;
    display: none;
    box-sizing: border-box;
}
.bvi-panel.bvi-open {
    display: block;
}
.bvi-panel__row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    justify-content: center;
}
.bvi-panel__group {
    display: flex;
    align-items: center;
    gap: 6px;
    border-right: 1px solid #ccc;
    padding-right: 12px;
}
.bvi-panel__group:last-child {
    border-right: none;
    padding-right: 0;
}
.bvi-panel__label {
    font-size: 14px;
    color: #333;
    font-weight: 600;
    white-space: nowrap;
}

/* Кнопки панели */
.bvi-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 4px 10px;
    border: 1px solid #aaa;
    border-radius: 4px;
    background: #fff;
    color: #333;
    cursor: pointer;
    font-family: Arial, serif !important;
    font-size: 14px;
    transition: background .15s;
}
.bvi-btn:hover {
    background: #e8e8e8;
}
.bvi-btn--active {
    background: #b6b6b6 !important;
    border-color: #888;
}
.bvi-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}
.bvi-btn--font-size {
    font-weight: 700;
}
.bvi-btn--close {
    font-size: 18px;
    line-height: 1;
}

/* ===== Цветовые темы ===== */
/* Белый (по умолчанию) */
body.bvi-active {
    background: #feff8f !important;
    color: #252525 !important;
}
/* Тёмная тема */
body.bvi-active.bvi-theme-black {
    background: #000 !important;
    color: #fff !important;
}
body.bvi-active.bvi-theme-black a {
    color: #ff6 !important;
}
body.bvi-active.bvi-theme-black .bvi-panel {
    background: #222;
}
body.bvi-active.bvi-theme-black .bvi-panel__label,
body.bvi-active.bvi-theme-black .bvi-btn {
    color: #fff;
}
body.bvi-active.bvi-theme-black .bvi-btn {
    background: #333;
    border-color: #666;
}
body.bvi-active.bvi-theme-black .bvi-btn--active {
    background: #555 !important;
}

/* Синяя тема */
body.bvi-active.bvi-theme-blue {
    background: #c7e0ff !important;
    color: #00386e !important;
}
body.bvi-active.bvi-theme-blue a {
    color: #00386e !important;
}

/* Коричневая тема */
body.bvi-active.bvi-theme-brown {
    background: #f7e4c4 !important;
    color: #4e2600 !important;
}
body.bvi-active.bvi-theme-brown a {
    color: #4e2600 !important;
}

/* Зелёная тема */
body.bvi-active.bvi-theme-green {
    background: #0a3d2a !important;
    color: #b8e6c8 !important;
}
body.bvi-active.bvi-theme-green a {
    color: #b8e6c8 !important;
}
body.bvi-active.bvi-theme-green .bvi-panel {
    background: #0d4d35;
}
body.bvi-active.bvi-theme-green .bvi-panel__label,
body.bvi-active.bvi-theme-green .bvi-btn {
    color: #b8e6c8;
}
body.bvi-active.bvi-theme-green .bvi-btn {
    background: #0a3d2a;
    border-color: #1a6b4a;
}
body.bvi-active.bvi-theme-green .bvi-btn--active {
    background: #1a6b4a !important;
}

/* ===== Изображения ===== */
body.bvi-active.bvi-images-hide img,
body.bvi-active.bvi-images-grayscale img {
    /* базовое правило */
}
body.bvi-active.bvi-images-hide img {
    visibility: hidden !important;
    height: 0 !important;
    font-size: 0 !important;
    line-height: 0 !important;
}
body.bvi-active.bvi-images-grayscale img {
    filter: grayscale(100%) !important;
    -webkit-filter: grayscale(100%) !important;
}

/* ===== Режим шрифта — переопределение размеров ===== */
body.bvi-active.bvi-font-14 * { font-size: 14px !important; }
body.bvi-active.bvi-font-16 * { font-size: 16px !important; }
body.bvi-active.bvi-font-18 * { font-size: 18px !important; }
body.bvi-active.bvi-font-20 * { font-size: 20px !important; }
body.bvi-active.bvi-font-22 * { font-size: 22px !important; }
body.bvi-active.bvi-font-24 * { font-size: 24px !important; }
body.bvi-active.bvi-font-26 * { font-size: 26px !important; }
body.bvi-active.bvi-font-28 * { font-size: 28px !important; }
body.bvi-active.bvi-font-30 * { font-size: 30px !important; }
body.bvi-active.bvi-font-32 * { font-size: 32px !important; }

/* Сохраняем line-height комфортным */
body.bvi-active {
    line-height: 1.6 !important;
}

/* ===== Скрытие кнопки глаза при активной BVI ===== */
body.bvi-active #specialButton {
    display: none !important;
}

/* ===== Адаптация контента ===== */
body.bvi-active .right-block .block-projects p {
    font-size: inherit !important;
}
body.bvi-active .page-loader {
    display: none !important;
}

/* ===== Кнопка "Закрыть панель" / "Обычная версия" ===== */
.bvi-panel__close-group {
    margin-left: auto;
    border-right: none !important;
    padding-right: 0 !important;
}

/* ===== Мобильная адаптация ===== */
@media (max-width: 768px) {
    .bvi-panel__row {
        flex-direction: column;
        gap: 8px;
    }
    .bvi-panel__group {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid #ddd;
        padding-bottom: 8px;
        width: 100%;
        justify-content: center;
    }
    .bvi-panel__close-group {
        margin-left: 0;
        border-bottom: none;
    }
}