/* ============================================================
   Версия для слабовидящих — панель и режим
   ============================================================ */

/* Панель управления */
#bvi-panel {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 99999;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
}
#bvi-panel .bvi-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid #ccc;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}
#bvi-panel .bvi-toggle:focus-visible {
    outline: 3px solid #D6AD3F;
    outline-offset: 2px;
}

.bvi-controls {
    margin-top: 8px;
    padding: 12px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,.15);
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 260px;
    border: 1px solid #eee;
}
.bvi-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}
.bvi-label {
    width: 100%;
    font-size: 12px;
    color: #666;
    margin-bottom: 2px;
}
.bvi-controls button {
    cursor: pointer;
    padding: 6px 10px;
    border: 1px solid #ccc;
    background: #f5f5f5;
    border-radius: 6px;
    font-size: 13px;
}
.bvi-controls button.active {
    background: #333c4c;
    color: #fff;
    border-color: #333c4c;
}
.bvi-controls button:focus-visible {
    outline: 3px solid #D6AD3F;
    outline-offset: 2px;
}
.bvi-close {
    width: 100%;
    background: #D6AD3F !important;
    color: #000 !important;
    border-color: #D6AD3F !important;
    font-weight: 700;
}

/* ============================================================
   Режим "для слабовидящих" — применяется к <html class="bvi-active">
   ============================================================ */

html.bvi-active body * {
    background-image: none !important;
    box-shadow: none !important;
    text-shadow: none !important;
    animation: none !important;
    transition: none !important;
    border-radius: 0 !important;
}

/* Схемы */
html.bvi-active[data-bvi-scheme="white"] body,
html.bvi-active[data-bvi-scheme="white"] body * { background-color: #fff !important; color: #000 !important; }
html.bvi-active[data-bvi-scheme="white"] a { color: #0047b3 !important; text-decoration: underline !important; }

html.bvi-active[data-bvi-scheme="black"] body,
html.bvi-active[data-bvi-scheme="black"] body * { background-color: #000 !important; color: #fff !important; }
html.bvi-active[data-bvi-scheme="black"] a { color: #ffd700 !important; text-decoration: underline !important; }

html.bvi-active[data-bvi-scheme="beige"] body,
html.bvi-active[data-bvi-scheme="beige"] body * { background-color: #f8f0dd !important; color: #3b2a10 !important; }
html.bvi-active[data-bvi-scheme="beige"] a { color: #8a5a00 !important; text-decoration: underline !important; }

html.bvi-active[data-bvi-scheme="blue"] body,
html.bvi-active[data-bvi-scheme="blue"] body * { background-color: #0b3d68 !important; color: #e6f0ff !important; }
html.bvi-active[data-bvi-scheme="blue"] a { color: #ffd700 !important; text-decoration: underline !important; }

/* Шрифт */
html.bvi-active[data-bvi-font="sans"] body * { font-family: Arial, Helvetica, sans-serif !important; }
html.bvi-active[data-bvi-font="serif"] body * { font-family: "Times New Roman", Times, serif !important; }

/* Отключение изображений */
html.bvi-active[data-bvi-images="0"] img,
html.bvi-active[data-bvi-images="0"] svg,
html.bvi-active[data-bvi-images="0"] video,
html.bvi-active[data-bvi-images="0"] iframe {
    visibility: hidden !important;
}

/* Панель BVI должна быть видна всегда */
html.bvi-active #bvi-panel,
html.bvi-active #bvi-panel * {
    visibility: visible !important;
}

/* Фокус в BVI-режиме */
html.bvi-active a:focus-visible,
html.bvi-active button:focus-visible,
html.bvi-active input:focus-visible,
html.bvi-active select:focus-visible,
html.bvi-active textarea:focus-visible {
    outline: 3px solid #ffd700 !important;
    outline-offset: 2px !important;
}