/**
 * Content Gravity SEO - TOC Styles
 */

/* Base - Uses CSS custom properties from inline style */
.cg-toc {
    --link-color: var(--cg-toc-link-color, #0073aa);
    --font-size: var(--cg-toc-font-size, 14px);

    font-family: inherit;
    font-size: var(--font-size);
    box-sizing: border-box;
    max-width: 100%;
    margin: 1.5rem 0;
}

/* Header */
.cg-toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e5e5e5;
    transition: all 0.3s ease;
}

.cg-toc-title {
    font-size: 1.1em;
    font-weight: 700;
    color: inherit;
    margin: 0;
}

.cg-toc-toggle {
    background: transparent !important;
    border: none;
    box-shadow: none !important;
    color: var(--link-color) !important;
    font-size: 0.85em;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 3px;
    transition: background 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
}


.cg-toc-toggle:hover {
    background: transparent;
    opacity: 0.8;
}

.cg-toc-toggle svg {
    transition: transform 0.3s ease;
    transform: rotate(180deg);
    /* Default open state = point up (collapse) */
}

/* Collapsed state = point down (expand) */
.cg-toc.is-collapsed .cg-toc-toggle svg {
    transform: rotate(0deg);
}

/* Body & List - Smooth animation */
.cg-toc-body {
    overflow: hidden;
    max-height: 2000px;
    /* Large enough for most TOCs */
    transition: max-height 0.35s ease, opacity 0.25s ease;
    opacity: 1;
}

.cg-toc-list,
.cg-toc-list ul {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.cg-toc-item {
    margin: 0;
    padding: 0;
}

.cg-toc-item>a {
    display: block;
    text-decoration: none;
    color: #333;
    padding: 5px 0;
    line-height: 1.5;
    transition: color 0.15s ease, padding-left 0.15s ease;
}

.cg-toc-item>a:hover {
    color: var(--link-color);
    padding-left: 4px;
}

/* Indentation */
.cg-toc-list ul .cg-toc-item {
    margin-left: 1.25rem;
}

.cg-toc-list ul ul .cg-toc-item {
    margin-left: 1.25rem;
}

/* --- Presets --- */

/* Minimal */
.cg-toc--minimal {
    background: transparent;
    border: none;
    padding: 0;
}

/* Boxed */
.cg-toc--boxed {
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 1.25rem;
}

/* --- Collapsed State - Smooth Animation --- */
.cg-toc.is-collapsed .cg-toc-body {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}

.cg-toc.is-collapsed .cg-toc-header {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom-color: transparent;
}

/* --- Numbered Headings --- */
.cg-toc-number {
    color: var(--link-color);
    font-size: 0.9em;
    font-weight: 600;
    margin-right: 0.4em;
    opacity: 0.8;
}

/* --- Dark Mode --- */
.cg-toc--dark {
    background: #1a1a1a;
    color: #e8e8e8;
}

/* Dark mode: boxed preset */
.cg-toc--dark.cg-toc--boxed {
    background: #1a1a1a;
    border-color: #333;
}

/* Dark mode: header border */
.cg-toc--dark .cg-toc-header {
    border-bottom-color: #404040;
}

/* Dark mode: title */
.cg-toc--dark .cg-toc-title {
    color: #ffffff;
}

/* Dark mode: toggle button */
.cg-toc--dark .cg-toc-toggle {
    color: #5eb3ff;
}

.cg-toc--dark .cg-toc-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Dark mode: links - high contrast for readability */
.cg-toc--dark .cg-toc-item>a {
    color: var(--link-color) !important;
}

.cg-toc--dark .cg-toc-item>a:hover {
    color: var(--link-color) !important;
    opacity: 0.8;
}

/* Dark mode: numbered headings */
.cg-toc--dark .cg-toc-number {
    color: #ffffff;
}

/* Dark mode: collapsed state header */
.cg-toc--dark.is-collapsed .cg-toc-header {
    border-bottom-color: transparent;
}

/* Sticky TOC */
.cg-toc--sticky {
    position: -webkit-sticky;
    position: sticky;
    top: var(--cg-toc-sticky-top, 2rem);
    z-index: 10;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
}

/* Ensure smooth scrolling for internal links when using sticky header */
html {
    scroll-behavior: smooth;
}

/* Floating Alignment */
.cg-toc--align-right {
    float: right;
    margin-left: 2rem;
    max-width: 40%;
    min-width: 250px;
    clear: right;
}

.cg-toc--align-left {
    float: left;
    margin-right: 2rem;
    max-width: 40%;
    min-width: 250px;
    clear: left;
}

/* Adjust for mobile - disable float and max-width */
@media (max-width: 768px) {

    .cg-toc--align-right,
    .cg-toc--align-left {
        float: none;
        margin: 1.5rem 0;
        max-width: 100%;
        width: 100%;
    }
}