/* Кнопка вызова содержания (слева по центру) */
#slideout-toc-button {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: #25262d;
    color: #fff;
    padding: 12px 8px;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    z-index: 1000;
    font-family: 'Montserrat', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    /* ДВОЙНОЙ КОНТУР: внешний #25262d, внутренний белый */
    box-shadow: 0 0 0 2px #25262d;
    border: 2px solid #ffffff;
}

#slideout-toc-button:hover {
    background: #3a3c47;
    padding-right: 12px;
    /* ПРИ НАВЕДЕНИИ: внешний #3a3c47, внутренний белый */
    box-shadow: 0 0 0 2px #3a3c47;
    border: 2px solid #ffffff;
}

.toc-icon {
    font-size: 24px;
    font-weight: bold;
}

.toc-label {
    font-size: 12px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 2px;
}

/* Панель */
.slideout-toc-panel {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    height: 100%;
    background: #fff;
    box-shadow: 2px 0 12px rgba(0,0,0,0.2);
    z-index: 1002;
    transition: left 0.3s ease;
    overflow-y: auto;
    padding: 20px;
    font-family: 'Montserrat', sans-serif;
}

.slideout-toc-panel.open {
    left: 0;
}

/* Заголовок */
.slideout-toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    font-weight: bold;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 12px;
    margin-bottom: 20px;
}

.slideout-toc-close {
    font-size: 28px;
    cursor: pointer;
    color: #4a5568;
}

.slideout-toc-close:hover {
    color: #000000;
}

/* Оверлей */
.slideout-toc-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgb(0,0,0);
    opacity: 0.4;
    z-index: 1001;
    display: none;
}

.slideout-toc-overlay.open {
    display: block;
}

@media (max-width: 480px) {
    .slideout-toc-panel {
        width: 280px;
        left: -280px;
    }
}