/* ========================================
   DOCUMENTATION LAYOUT
======================================== */
.docs-layout {
    display: flex;
    min-height: 100vh;
    padding-top: var(--header-height);
}

/* Sidebar */
.docs-sidebar {
    width: 280px;
    flex-shrink: 0;
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--spacing-xl) 0;
    z-index: 100;
    transition: transform var(--transition-base);
}

.docs-sidebar::-webkit-scrollbar {
    width: 4px;
}

.docs-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.docs-sidebar::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

/* Theme branding in sidebar */
.docs-sidebar__header {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.docs-sidebar__theme-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.docs-sidebar__theme-tag {
    display: inline-block;
    margin-top: var(--spacing-xs);
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-accent);
    background: var(--gradient-accent-subtle);
    border: 1px solid rgba(0, 102, 255, 0.15);
    border-radius: var(--radius-full);
}

/* Navigation items */
.docs-nav__item {
    margin-bottom: 2px;
}

.docs-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-left: 2px solid transparent;
}

.docs-nav__link:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.03);
}

.docs-nav__link.active {
    color: var(--color-text);
    background: rgba(0, 102, 255, 0.08);
    border-left-color: var(--color-accent);
}

.docs-nav__link--parent {
    cursor: pointer;
    user-select: none;
}

.docs-nav__chevron {
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.docs-nav__item.open > .docs-nav__link .docs-nav__chevron {
    transform: rotate(90deg);
}

/* Subnav (dropdown children) */
.docs-nav__subnav {
    overflow: hidden;
    max-height: 0;
    transition: max-height var(--transition-base);
}

.docs-nav__item.open > .docs-nav__subnav {
    max-height: 500px;
}

.docs-nav__sublink {
    display: block;
    padding: 8px var(--spacing-lg) 8px calc(var(--spacing-lg) + 16px);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    transition: all var(--transition-fast);
    border-left: 2px solid transparent;
}

.docs-nav__sublink:hover {
    color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.02);
}

.docs-nav__sublink.active {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
}

/* Content */
.docs-content {
    flex: 1;
    margin-left: 280px;
    padding: var(--spacing-3xl) var(--spacing-4xl);
    max-width: calc(100% - 280px);
    min-height: calc(100vh - var(--header-height));
}

.docs-content__section {
    display: none;
    max-width: 780px;
}

.docs-content__section.active {
    display: block;
    animation: fadeInUp 0.4s ease forwards;
}

.docs-content__section h1 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-lg);
}

.docs-content__section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.docs-content__section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.docs-content__section p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.docs-content__section ul,
.docs-content__section ol {
    color: var(--color-text-secondary);
    line-height: 1.8;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.docs-content__section ul {
    list-style: disc;
}

.docs-content__section ol {
    list-style: decimal;
}

.docs-content__section li + li {
    margin-top: var(--spacing-xs);
}

.docs-content__section code {
    font-family: "SF Mono", "Fira Code", monospace;
    font-size: 0.875em;
    padding: 2px 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-accent-hover);
}

.docs-content__section pre {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.docs-content__section pre code {
    padding: 0;
    background: none;
    border: none;
    color: var(--color-text-secondary);
}

.docs-content__section blockquote {
    border-left: 3px solid var(--color-accent);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gradient-accent-subtle);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: var(--spacing-md);
}

.docs-content__section blockquote p {
    margin-bottom: 0;
    color: var(--color-text);
}

.docs-content__placeholder {
    padding: var(--spacing-2xl);
    background: var(--color-surface);
    border: 1px dashed var(--color-border-light);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

/* Mobile sidebar toggle */
.docs-mobile-toggle {
    display: none;
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: #fff;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    z-index: 200;
    transition: transform var(--transition-base);
}

.docs-mobile-toggle svg {
    width: 20px;
    height: 20px;
}

.docs-mobile-toggle:hover {
    transform: scale(1.05);
}

/* Sidebar overlay for mobile */
.docs-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 99;
}

.docs-sidebar-overlay.active {
    display: block;
}

/* ========================================
   RESPONSIVE DOCS
======================================== */
@media (max-width: 768px) {
    .docs-sidebar {
        transform: translateX(-100%);
        z-index: 200;
    }

    .docs-sidebar.open {
        transform: translateX(0);
    }

    .docs-content {
        margin-left: 0;
        max-width: 100%;
        padding: var(--spacing-xl);
    }

    .docs-mobile-toggle {
        display: flex;
    }
}