/* =========================================================
   SEO Killer — Table of Contents (Frontend)
   ========================================================= */

/* Base / Default style */
.seo-killer-toc {
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-left: 4px solid #2271b1;
    border-radius: 6px;
    padding: 18px 22px;
    margin: 24px 0;
    max-width: 680px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
}

.seo-killer-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e0e0e0;
}

.seo-killer-toc-title {
    font-size: 16px;
    font-weight: 700;
    color: #1d2327;
    letter-spacing: -0.2px;
}

.seo-killer-toc-toggle {
    background: none;
    border: 1px solid #dcdcde;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    color: #646970;
    padding: 3px 8px;
    transition: all 0.2s;
    line-height: 1;
}

.seo-killer-toc-toggle:hover {
    background: #f0f0f1;
    color: #1d2327;
    border-color: #c3c4c7;
}

.seo-killer-toc-toggle-icon {
    display: inline-block;
    transition: transform 0.3s ease;
}

.seo-killer-toc.collapsed .seo-killer-toc-toggle-icon {
    transform: rotate(-90deg);
}

.seo-killer-toc.collapsed .seo-killer-toc-list {
    display: none;
}

.seo-killer-toc-list {
    margin: 0;
    padding-left: 0;
    list-style: none;
    counter-reset: toc-counter;
}

.seo-killer-toc-list > li {
    counter-increment: toc-counter;
}

.seo-killer-toc.numbered .seo-killer-toc-list > li > a::before {
    content: counter(toc-counter) ". ";
    color: #2271b1;
    font-weight: 600;
}

.seo-killer-toc-item {
    margin-bottom: 6px;
    padding: 3px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.seo-killer-toc-item:hover {
    background: rgba(34, 113, 177, 0.06);
}

.seo-killer-toc-item.active {
    background: rgba(34, 113, 177, 0.1);
}

.seo-killer-toc-item.active > a {
    color: #135e96;
    font-weight: 600;
}

.seo-killer-toc-list a {
    color: #2271b1;
    text-decoration: none;
    font-size: 14px;
    display: block;
    transition: color 0.2s;
}

.seo-killer-toc-list a:hover {
    color: #135e96;
    text-decoration: underline;
}

.seo-killer-toc-sublist {
    padding-left: 20px;
    margin-top: 4px;
    list-style: none;
    counter-reset: toc-sub-counter;
}

.seo-killer-toc.numbered .seo-killer-toc-sublist > li > a::before {
    content: counter(toc-counter) "." counter(toc-sub-counter) " ";
    color: #646970;
    font-weight: 500;
    font-size: 12px;
}

.seo-killer-toc.numbered .seo-killer-toc-sublist > li {
    counter-increment: toc-sub-counter;
}

.seo-killer-toc-sublist a {
    font-size: 13px;
    color: #50575e;
}

.seo-killer-toc-sublist a:hover {
    color: #2271b1;
}

.seo-killer-toc-level-3 {
    padding-left: 4px;
}

.seo-killer-toc-level-4 {
    padding-left: 8px;
}

/* =========================================================
   Style: Boxed
   ========================================================= */

.seo-killer-toc.seo-killer-toc-boxed {
    background: #ffffff;
    border: 2px solid #2271b1;
    border-left-width: 2px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.seo-killer-toc.seo-killer-toc-boxed .seo-killer-toc-header {
    background: #2271b1;
    margin: -18px -22px 14px;
    padding: 12px 22px;
    border-radius: 4px 4px 0 0;
    border-bottom: none;
}

.seo-killer-toc.seo-killer-toc-boxed .seo-killer-toc-title {
    color: #ffffff;
}

.seo-killer-toc.seo-killer-toc-boxed .seo-killer-toc-toggle {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

.seo-killer-toc.seo-killer-toc-boxed .seo-killer-toc-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
}

/* =========================================================
   Style: Minimal
   ========================================================= */

.seo-killer-toc.seo-killer-toc-minimal {
    background: transparent;
    border: none;
    border-left: 3px solid #dcdcde;
    border-radius: 0;
    padding: 8px 0 8px 18px;
}

.seo-killer-toc.seo-killer-toc-minimal .seo-killer-toc-header {
    border-bottom: none;
    margin-bottom: 8px;
    padding-bottom: 0;
}

.seo-killer-toc.seo-killer-toc-minimal .seo-killer-toc-title {
    font-size: 14px;
    font-weight: 600;
    color: #646970;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.seo-killer-toc.seo-killer-toc-minimal .seo-killer-toc-item {
    border-radius: 0;
    padding: 2px 0;
}

.seo-killer-toc.seo-killer-toc-minimal .seo-killer-toc-item:hover {
    background: transparent;
}

.seo-killer-toc.seo-killer-toc-minimal .seo-killer-toc-item.active {
    background: transparent;
    border-left: 2px solid #2271b1;
    margin-left: -19px;
    padding-left: 17px;
}

/* =========================================================
   Style: Dark
   ========================================================= */

.seo-killer-toc.seo-killer-toc-dark {
    background: #1d2327;
    border: 1px solid #3c434a;
    border-left: 4px solid #72aee6;
    color: #c3c4c7;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-header {
    border-bottom-color: #3c434a;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-title {
    color: #ffffff;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-toggle {
    color: #c3c4c7;
    border-color: #50575e;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-toggle:hover {
    background: #2c3338;
    color: #ffffff;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-list a {
    color: #72aee6;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-list a:hover {
    color: #a7d4f7;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-sublist a {
    color: #8c8f94;
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-item:hover {
    background: rgba(114, 174, 230, 0.08);
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-item.active {
    background: rgba(114, 174, 230, 0.15);
}

.seo-killer-toc.seo-killer-toc-dark .seo-killer-toc-item.active > a {
    color: #ffffff;
}

/* Smooth scroll offset for fixed headers */
[id] {
    scroll-margin-top: 80px;
}

/* Responsive */
@media (max-width: 768px) {
    .seo-killer-toc {
        max-width: 100%;
        padding: 14px 16px;
    }

    .seo-killer-toc-list a {
        font-size: 13px;
    }
}