/* Quick Floating TOC Pro - Main Styles */

.qftoc-container {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 9999;
    pointer-events: none;
}

.qftoc-container.qftoc-position-left {
    left: 0;
}

.qftoc-container.qftoc-position-right {
    right: 0;
}

.qftoc-wrapper {
    position: relative;
    display: flex;
    overflow: hidden;
    pointer-events: auto;
    width: 40px;
    transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    border-radius: 8px;
}

.qftoc-position-left .qftoc-wrapper {
    flex-direction: row;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.qftoc-position-right .qftoc-wrapper {
    flex-direction: row-reverse;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.qftoc-wrapper.expanded {
    width: 340px;
}

.qftoc-toggle {
    flex-shrink: 0;
    width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #2c3e50;
    color: #ffffff;
    cursor: pointer;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.qftoc-toggle-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    white-space: nowrap;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 20px 0;
}

.qftoc-content {
    flex: 1;
    background-color: #ffffff;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.25, 1, 0.5, 1) 0.1s;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 70vh;
    min-width: 0;
}

.qftoc-wrapper.expanded .qftoc-content {
    opacity: 1;
    pointer-events: auto;
}

.qftoc-nav {
    width: 100%;
}

.qftoc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qftoc-item {
    margin-bottom: 10px;
}

.qftoc-item:last-child {
    margin-bottom: 0;
}

.qftoc-link {
    display: block;
    text-decoration: none;
    color: #333333;
    transition: all 0.2s ease;
    line-height: 1.5;
    position: relative;
}

.qftoc-link:hover {
    color: #2c3e50;
}

.qftoc-link.active {
    color: #3498db;
    font-weight: 600;
}

.qftoc-link.active::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 100%;
    background-color: currentColor;
    border-radius: 2px;
}

.qftoc-position-left .qftoc-link.active::before {
    left: -15px;
}

.qftoc-position-right .qftoc-link.active::before {
    right: -15px;
    left: auto;
}

.qftoc-item[data-level="1"] .qftoc-link {
    padding-left: 0;
}

.qftoc-item[data-level="2"] .qftoc-link {
    padding-left: 15px;
    font-size: 0.95em;
}

.qftoc-item[data-level="3"] .qftoc-link {
    padding-left: 30px;
    font-size: 0.9em;
}

.qftoc-item[data-level="4"] .qftoc-link {
    padding-left: 45px;
    font-size: 0.85em;
}

.qftoc-item[data-level="5"] .qftoc-link {
    padding-left: 60px;
    font-size: 0.8em;
}

.qftoc-item[data-level="6"] .qftoc-link {
    padding-left: 75px;
    font-size: 0.75em;
}

.qftoc-content::-webkit-scrollbar {
    width: 6px;
}

.qftoc-content::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
}

.qftoc-content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.qftoc-content::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .qftoc-wrapper.expanded {
        width: 280px;
    }
}

@media (max-width: 480px) {
    .qftoc-wrapper.expanded {
        width: 240px;
    }

    .qftoc-toggle {
        width: 35px;
    }
}