/* ========================================
   Documentation Page
   Compact technical split-pane layout
   ======================================== */

.doc-page {
    padding-top: 92px;
    padding-bottom: 48px;
}

.doc-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: minmax(220px, 248px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.breadcrumb {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 2px;
    font-size: 0.8125rem;
    line-height: 1.4;
    color: var(--color-text-muted);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.doc-toc-container {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 108px);
    overflow-y: auto;
    scrollbar-gutter: stable;
    padding: 16px 14px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    scroll-padding-block: 16px;
}

.doc-toc-container h1 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border);
}

.doc-toc {
    margin: 0;
    padding: 0;
}

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

.doc-toc ul ul {
    margin: 3px 0 3px 10px;
    padding-left: 10px;
    border-left: 1px solid var(--color-border);
}

.doc-toc li {
    margin: 1px 0;
}

.doc-toc-row {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    align-items: center;
    gap: 4px;
}

.doc-toc-toggle {
    width: 18px;
    height: 18px;
    border: 0;
    padding: 0;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 6px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.doc-toc-toggle:hover {
    color: var(--color-text);
    background: rgba(16, 185, 129, 0.08);
}

.doc-toc-toggle span {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
}

.doc-toc-toggle span::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 7px;
    height: 7px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translate(-60%, -50%) rotate(-45deg);
    transition: transform var(--transition-fast);
}

.doc-toc li.is-open > .doc-toc-row .doc-toc-toggle span::before {
    transform: translate(-50%, -65%) rotate(45deg);
}

.doc-toc a {
    display: block;
    padding: 6px 9px;
    border-radius: 8px;
    color: var(--color-text-secondary);
    font-size: 0.84rem;
    line-height: 1.35;
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.doc-toc ul ul a {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.doc-toc li.is-collapsable > .doc-toc-children[hidden] {
    display: none;
}

.doc-toc a:hover {
    color: var(--color-text);
    background: rgba(16, 185, 129, 0.08);
}

.doc-toc a.active {
    color: var(--color-primary-dark);
    font-weight: 600;
    background: var(--color-accent-glow);
    box-shadow: inset 2px 0 0 var(--color-primary);
}

.doc-content {
    min-width: 0;
    padding: 28px 32px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.doc-content h1 {
    font-size: 1.85rem;
    line-height: 1.2;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
}

.doc-content h2 {
    font-size: 1.32rem;
    line-height: 1.3;
    margin-top: 28px;
    margin-bottom: 12px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border-light);
}

.doc-content h3 {
    font-size: 1.05rem;
    line-height: 1.35;
    margin-top: 22px;
    margin-bottom: 8px;
}

.doc-content h4 {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 6px;
}

.doc-content p,
.doc-content li,
.doc-content td {
    font-size: 0.95rem;
}

.doc-content p {
    margin-bottom: 12px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.doc-content pre {
    margin: 14px 0;
    padding: 14px 16px;
    overflow-x: auto;
    background: var(--color-code-bg);
    color: var(--color-code-text);
    border-radius: 10px;
    font-family: var(--font-mono);
    font-size: 0.84rem;
    line-height: 1.55;
    box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.12);
}

.doc-content pre code {
    font-family: inherit;
    color: inherit;
    background: transparent;
    padding: 0;
    margin: 0;
}

.doc-content code {
    font-family: var(--font-mono);
    font-size: 0.88em;
    color: var(--color-text);
    background: var(--color-bg-secondary);
    padding: 0.08rem 0.32rem;
    margin: 0 0.08rem;
    border-radius: var(--radius-sm);
}

.doc-content ul,
.doc-content ol {
    margin: 0 0 14px 20px;
}

.doc-content li {
    margin-bottom: 6px;
    line-height: 1.55;
    color: var(--color-text-secondary);
}

.doc-content a {
    color: var(--color-primary-dark);
    font-weight: 500;
}

.doc-content a:hover {
    text-decoration: underline;
}

.key-table,
.regex-table {
    width: 100%;
    border-collapse: collapse;
    margin: 14px 0 18px;
    table-layout: fixed;
}

.key-table td,
.regex-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
    line-height: 1.5;
}

.key-table td:first-child,
.regex-table td:first-child {
    width: 28%;
    font-family: var(--font-mono);
    font-size: 0.84rem;
    color: var(--color-primary-dark);
}

.key-table tr:hover,
.regex-table tr:hover {
    background: var(--color-bg-secondary);
}

.endpoint {
    margin: 14px 0;
    padding: 10px 12px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-family: var(--font-mono);
    font-size: 0.84rem;
}

.method-card {
    margin: 14px 0;
    padding: 16px 18px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.method-card h4 {
    margin-bottom: 4px;
}

.method-card p:last-child {
    margin-bottom: 0;
}

@media (max-width: 1024px) {
    .doc-container {
        grid-template-columns: minmax(200px, 228px) minmax(0, 1fr);
        gap: 22px;
    }

    .doc-content {
        padding: 24px 26px;
    }
}

@media (max-width: 768px) {
    .doc-page {
        padding-top: 84px;
        padding-bottom: 40px;
    }

    .doc-container {
        grid-template-columns: 1fr;
        gap: 18px;
        padding: 0 16px;
    }

    .doc-toc-container {
        position: relative;
        top: 0;
        max-height: none;
        padding: 14px 12px;
        order: 1;
    }

    .doc-content {
        order: 2;
        padding: 20px 18px;
    }
}

@media (max-width: 480px) {
    .doc-content h1 {
        font-size: 1.55rem;
    }

    .doc-content h2 {
        font-size: 1.18rem;
    }

    .doc-content h3 {
        font-size: 1rem;
    }

    .key-table td,
    .regex-table td {
        padding: 8px 10px;
    }
}