/* Table of Contents with Fixed Sidebar and Auto-numbering */

/* Auto-numbering for headings - only in main content and starting from H2 */
.main-content {
    counter-reset: h2-counter;
}

.main-content h2 {
    counter-reset: h3-counter;
    counter-increment: h2-counter;
}

.main-content h2::before {
    content: counter(h2-counter) ". ";
    color: #666;
    font-weight: normal;
}

.main-content h3 {
    counter-reset: h4-counter;
    counter-increment: h3-counter;
}

.main-content h3::before {
    content: counter(h2-counter) "." counter(h3-counter) " ";
    color: #666;
    font-weight: normal;
}

.main-content h4 {
    counter-reset: h5-counter;
    counter-increment: h4-counter;
}

.main-content h4::before {
    content: counter(h2-counter) "." counter(h3-counter) "." counter(h4-counter)
        " ";
    color: #666;
    font-weight: normal;
}

.main-content h5 {
    counter-reset: h6-counter;
    counter-increment: h5-counter;
}

.main-content h5::before {
    content: counter(h2-counter) "." counter(h3-counter) "." counter(h4-counter)
        "." counter(h5-counter) " ";
    color: #666;
    font-weight: normal;
}

.main-content h6 {
    counter-increment: h6-counter;
}

.main-content h6::before {
    content: counter(h2-counter) "." counter(h3-counter) "." counter(h4-counter)
        "." counter(h5-counter) "." counter(h6-counter) " ";
    color: #666;
    font-weight: normal;
}

/* Disable numbering for specific headings */
.no-number::before {
    content: none !important;
    counter-increment: none !important;
}

/* Container for layout with sidebar */
.content-with-sidebar {
    position: relative;
}

/* Desktop layout with TOC in left margin - apply to main containers */
@media (min-width: 1201px) {
    .wrapper,
    .site-header .wrapper,
    .site-footer .wrapper {
        margin-left: 320px; /* Space for TOC + gap */
        max-width: calc(100% - 320px);
    }

    /* Reset for nested wrappers to avoid double margins */
    .wrapper .wrapper {
        margin-left: 0;
        max-width: 100%;
    }
}

/* TOC Sidebar - Default mobile first, then desktop override */
#toc {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    padding: 1.5rem;
    margin: 0 0 2rem 0;
    overflow-y: auto;
    position: static;
    z-index: 1;
}

/* Desktop: Fixed sidebar */
@media (min-width: 1201px) {
    #toc {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        margin: 0;
        z-index: 10;
    }
}

/* Prevent multiple TOC instances - simplified */
#toc + #toc {
    display: none !important;
}

#toc h2,
#toc h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: #495057;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 1px solid #dee2e6;
    padding-bottom: 0.5rem;
}

/* Main content area */
.main-content {
    width: 100%;
    max-width: none;
    padding-right: 1rem;
}

/* TOC Navigation styling - numbering starts from H2 */
.toc-nav {
    counter-reset: h2;
}

.toc-nav ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc-nav ul ul {
    padding-left: 1.5rem;
    margin-top: 0.5rem;
}

.toc-nav li {
    margin: 0.3rem 0;
    line-height: 1.4;
}

/* Counter increments for TOC - simple approach */
.toc-nav > ul > li {
    counter-increment: h2;
    counter-reset: h3;
}

.toc-nav > ul > li > ul {
    counter-reset: h3;
}

.toc-nav > ul > li > ul > li {
    counter-increment: h3;
    counter-reset: h4;
}

.toc-nav > ul > li > ul > li > ul {
    counter-reset: h4;
}

.toc-nav > ul > li > ul > li > ul > li {
    counter-increment: h4;
    counter-reset: h5;
}

.toc-nav > ul > li > ul > li > ul > li > ul {
    counter-reset: h5;
}

.toc-nav > ul > li > ul > li > ul > li > ul > li {
    counter-increment: h5;
    counter-reset: h6;
}

.toc-nav > ul > li > ul > li > ul > li > ul > li > ul {
    counter-reset: h6;
}

.toc-nav > ul > li > ul > li > ul > li > ul > li > ul > li {
    counter-increment: h6;
}

/* TOC link styling with numbers */
.toc-nav a {
    color: #007bff;
    text-decoration: none;
    display: block;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    position: relative;
    border-left: 3px solid transparent;
}

.toc-nav > ul > li > a::before {
    content: counter(h2) ". ";
    color: #666;
    font-weight: 600;
    margin-right: 0.5rem;
}

.toc-nav > ul > li > ul > li > a::before {
    content: counter(h2) "." counter(h3) " ";
    color: #666;
    font-weight: 500;
    margin-right: 0.5rem;
}

.toc-nav > ul > li > ul > li > ul > li > a::before {
    content: counter(h2) "." counter(h3) "." counter(h4) " ";
    color: #666;
    font-weight: normal;
    margin-right: 0.5rem;
}

.toc-nav > ul > li > ul > li > ul > li > ul > li > a::before {
    content: counter(h2) "." counter(h3) "." counter(h4) "." counter(h5) " ";
    color: #495057;
    font-weight: normal;
    margin-right: 0.5rem;
    font-size: 0.9rem;
}

.toc-nav > ul > li > ul > li > ul > li > ul > li > ul > li > a::before {
    content: counter(h2) "." counter(h3) "." counter(h4) "." counter(h5) "."
        counter(h6) " ";
    color: #495057;
    font-weight: normal;
    margin-right: 0.5rem;
    font-size: 0.9rem;
}

.toc-nav a:hover {
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-left-color: #007bff;
    transform: translateX(3px);
}

.toc-nav a:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Active link styling */
.toc-nav a.active {
    background-color: #e3f2fd;
    color: #1976d2;
    border-left-color: #1976d2;
    font-weight: 600;
}

/* Different levels styling */
.toc-nav > ul > li > a {
    font-weight: 600;
    font-size: 1rem;
}

.toc-nav ul ul a {
    font-weight: 500;
    color: #495057;
}

.toc-nav ul ul a:hover {
    background-color: #495057;
    color: white;
}

.toc-nav ul ul ul a {
    font-size: 0.85rem;
    color: #6c757d;
    font-weight: normal;
}

.toc-nav ul ul ul a:hover {
    background-color: #6c757d;
}

.toc-nav ul ul ul ul a {
    font-size: 0.85rem;
    color: #495057;
    font-weight: 500;
}

.toc-nav ul ul ul ul a:hover {
    background-color: #495057;
}

.toc-nav ul ul ul ul ul a {
    font-size: 0.85rem;
    color: #495057;
    font-weight: 500;
    padding-left: 1rem;
}

.toc-nav ul ul ul ul ul a:hover {
    background-color: #495057;
}

/* Scrollbar styling for TOC */
#toc::-webkit-scrollbar {
    width: 6px;
}

#toc::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

#toc::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

#toc::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Mobile and tablet - reset desktop overrides */
@media (max-width: 1200px) {
    .wrapper,
    .page-content,
    .site-header .wrapper,
    .site-footer .wrapper,
    .content-with-sidebar {
        margin-left: 0;
        max-width: 100%;
    }

    .main-content {
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    #toc {
        padding: 1rem;
        margin-bottom: 1.5rem;
        position: relative;
        left: -15px;
    }

    .toc-nav ul ul {
        padding-left: 1rem;
    }

    .toc-nav a {
        font-size: 0.85rem;
        padding: 0.3rem 0.6rem;
    }

    .toc-nav > ul > li > a {
        font-size: 0.9rem;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    #toc {
        padding: 0.75rem;
        max-height: 250px;
        margin-bottom: 1rem;
    }

    .toc-nav a {
        font-size: 0.8rem;
        padding: 0.25rem 0.5rem;
    }
}

/* Print styles */
@media print {
    #toc {
        background: white;
        border: 1px solid #ccc;
        page-break-inside: avoid;
        position: static;
        width: 100%;
        margin-bottom: 2rem;
    }

    .toc-nav a {
        color: #000;
        text-decoration: underline;
    }

    .content-with-sidebar {
        flex-direction: column;
    }
}

/* Dark theme support */
@media (prefers-color-scheme: dark) {
    #toc {
        background: #2d3748;
        border-color: #4a5568;
    }

    #toc h2,
    #toc h3 {
        color: #e2e8f0;
        border-bottom-color: #4a5568;
    }

    .toc-nav a {
        color: #63b3ed;
    }

    .toc-nav a:hover {
        background-color: #63b3ed;
        color: #1a202c;
    }

    .toc-nav a.active {
        background-color: #2a4a6b;
        color: #90cdf4;
        border-left-color: #90cdf4;
    }

    .toc-nav ul ul a {
        color: #a0aec0;
    }

    .toc-nav ul ul a:hover {
        background-color: #a0aec0;
        color: #1a202c;
    }

    .toc-nav ul ul ul a {
        color: #a0aec0;
    }

    .toc-nav ul ul ul ul a {
        color: #cbd5e0;
    }

    .toc-nav ul ul ul ul ul a {
        color: #cbd5e0;
    }

    .main-content h2::before,
    .main-content h3::before,
    .main-content h4::before,
    .main-content h5::before,
    .main-content h6::before {
        color: #a0aec0;
    }

    .toc-nav > ul > li > ul > li > ul > li > ul > li > a::before,
    .toc-nav > ul > li > ul > li > ul > li > ul > li > ul > li > a::before {
        color: #a0aec0 !important;
    }

    #toc::-webkit-scrollbar-track {
        background: #4a5568;
    }

    #toc::-webkit-scrollbar-thumb {
        background: #718096;
    }

    #toc::-webkit-scrollbar-thumb:hover {
        background: #a0aec0;
    }
}

/* Animation for smooth transitions */
.toc-nav a {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toc-nav a:hover {
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.15);
}

.site-header {
    position: fixed;
    width: 100%;
    z-index: 20;
    background: var(--minima-background-color);
    border: none;
}

main {
    margin-top: 3.5rem;
}

#toc {
    z-index: 40;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    scroll-margin-top: 2em;
}

html {
    scroll-behavior: smooth;
}