/* ============================================
   MDx Sidebar Styles
   ============================================ */

:root {
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 0px;
    --sidebar-bg: var(--bg-secondary, #121210);
    --sidebar-border: var(--border-subtle, rgba(255,255,255,0.05));
    --sidebar-text: var(--text-secondary, #9a9990);
    --sidebar-text-hover: var(--text-primary, #f5f5f3);
    --sidebar-active-bg: var(--bg-tertiary, #1a1918);
}

/* Sidebar Container */
.mdx-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    height: 100dvh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}

.mdx-sidebar.closed {
    transform: translateX(-100%);
}

/* Sidebar Header */
.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--sidebar-border);
    flex-shrink: 0;
}

.new-chat-btn {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary, #1a1918);
    border: 1px solid var(--border-light, rgba(255,255,255,0.08));
    border-radius: var(--radius-md, 12px);
    color: var(--text-primary, #f5f5f3);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
}

.new-chat-btn:hover {
    background: var(--bg-hover, #2a2928);
    border-color: var(--accent, #4a90d9);
}

.new-chat-btn .icon {
    font-size: 18px;
    font-weight: 300;
}

/* Sidebar Content (scrollable) */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
    overscroll-behavior: contain;
}

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

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--border-light, rgba(255,255,255,0.08));
    border-radius: 2px;
}

/* Conversation Sections */
.conversation-section {
    margin-bottom: 8px;
}

.section-label {
    padding: 8px 16px 6px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary, #5a5950);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Conversation Items */
.conversation-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--sidebar-text);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    position: relative;
    margin: 0 8px;
    border-radius: var(--radius-sm, 8px);
}

.conversation-item:hover {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-hover);
}

.conversation-item.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-hover);
}

.conversation-item .agent-icon {
    font-size: 14px;
    flex-shrink: 0;
    opacity: 0.7;
}

.conversation-item .conv-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
}

.conversation-item .conv-menu-btn {
    opacity: 0;
    background: none;
    border: none;
    color: var(--text-tertiary, #5a5950);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 16px;
    transition: opacity 0.15s;
    border-radius: var(--radius-sm, 8px);
}

.conversation-item:hover .conv-menu-btn {
    opacity: 1;
}

.conv-menu-btn:hover {
    color: var(--text-primary, #f5f5f3);
    background: var(--bg-hover, #2a2928);
}

/* Context Menu */
.conv-context-menu {
    position: fixed;
    background: var(--bg-elevated, #222220);
    border: 1px solid var(--border-light, rgba(255,255,255,0.08));
    border-radius: var(--radius-md, 12px);
    padding: 6px 0;
    min-width: 160px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    z-index: 1000;
}

.conv-context-menu button {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    background: none;
    border: none;
    color: var(--text-primary, #f5f5f3);
    text-align: left;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.15s;
}

.conv-context-menu button:hover {
    background: var(--bg-hover, #2a2928);
}

.conv-context-menu button.danger {
    color: #ff3b30;
}

.conv-context-menu button.danger:hover {
    background: rgba(255, 59, 48, 0.1);
}

/* Sidebar Footer */
.sidebar-footer {
    border-top: 1px solid var(--sidebar-border);
    padding: 8px 0;
    flex-shrink: 0;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    margin: 0 8px;
    border-radius: var(--radius-sm, 8px);
}

.sidebar-link:hover {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-hover);
}

.sidebar-link .icon {
    font-size: 16px;
}

.sidebar-link .label {
    font-size: 14px;
}

.section-divider {
    height: 1px;
    background: var(--sidebar-border);
    margin: 8px 16px;
}

.admin-section {
    margin-top: 4px;
}

/* Empty State */
.sidebar-empty-state {
    padding: 32px 16px;
    text-align: center;
    color: var(--text-tertiary, #5a5950);
    font-size: 14px;
    line-height: 1.5;
}

/* Loading State */
.sidebar-content .sidebar-loading {
    padding: 32px 16px;
    text-align: center;
    color: var(--text-tertiary, #5a5950);
    font-size: 14px;
}

/* Overlay for Mobile */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.sidebar-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* Main Content Wrapper */
.main-content {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    transition: margin-left 0.3s ease;
}

/* Sidebar pushes content on desktop when open */
body.sidebar-open .main-content.with-sidebar {
    margin-left: var(--sidebar-width);
}

/* Default state - no margin */
.main-content.with-sidebar {
    margin-left: 0;
}

/* ============================================
   Mobile Responsive
   ============================================ */

@media (max-width: 768px) {
    .mdx-sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    }

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

    .main-content.with-sidebar {
        margin-left: 0 !important;
    }

    body.sidebar-open .main-content.with-sidebar {
        margin-left: 0 !important;
    }

    /* Larger touch targets on mobile */
    .conversation-item {
        padding: 14px 16px;
        min-height: 48px;
    }

    .sidebar-link {
        padding: 14px 16px;
        min-height: 48px;
    }

    .new-chat-btn {
        padding: 14px 16px;
        min-height: 48px;
    }

    .conv-menu-btn {
        opacity: 1;
        padding: 8px 12px;
    }
}

/* ============================================
   Header Toggle Button
   ============================================ */

.sidebar-toggle {
    background: var(--bg-tertiary, #1a1918);
    border: 1px solid var(--border-light, rgba(255,255,255,0.08));
    color: var(--text-secondary, #9a9990);
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    border-radius: var(--radius-sm, 8px);
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background: var(--bg-hover, #2a2928);
    color: var(--text-primary, #f5f5f3);
}

/* Hamburger icon */
.sidebar-toggle .hamburger {
    width: 18px;
    height: 14px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sidebar-toggle .hamburger span {
    display: block;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform 0.2s, opacity 0.2s;
}

/* Animate to X when open */
body.sidebar-open .sidebar-toggle .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

body.sidebar-open .sidebar-toggle .hamburger span:nth-child(2) {
    opacity: 0;
}

body.sidebar-open .sidebar-toggle .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ============================================
   Desktop sidebar collapsed state
   ============================================ */

@media (min-width: 769px) {
    body:not(.sidebar-open) .mdx-sidebar {
        transform: translateX(-100%);
    }

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

    body:not(.sidebar-open) .main-content.with-sidebar {
        margin-left: 0;
    }
}