/* ============================================
   Citations Sidebar - Dedicated & Beautiful
   ============================================ */

:root {
    --citations-sidebar-width: 380px;
    --citations-transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================== */
/* Citations Sidebar     */
/* ===================== */
.citations-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 150;
    display: none;
    flex-direction: column;
    width: var(--citations-sidebar-width);
    max-width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: var(--background);
    border-left: 1px solid var(--border-color);
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--citations-transition), opacity var(--citations-transition);
    will-change: transform, opacity;
    overflow: hidden;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .citations-sidebar {
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.4);
}

.citations-sidebar.visible {
    display: flex;
}

.citations-sidebar.visible.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

/* Backdrop */
.citations-sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 149;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--citations-transition);
    display: none;
}

.citations-sidebar-backdrop.visible {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* ===================== */
/* Sidebar Header        */
/* ===================== */
.citations-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    background: var(--background);
}

.citations-sidebar-title {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.citations-sidebar-icon {
    flex-shrink: 0;
    color: var(--accent-color);
}

.citations-sidebar-title h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: -0.02em;
}

.citations-sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-color-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

@media (hover: hover) and (pointer: fine) {
    .citations-sidebar-close:hover {
        background: var(--background-color-secondary);
        color: var(--text-color);
    }
}

.citations-sidebar-close:active {
    transform: scale(0.95);
}

/* ===================== */
/* Sidebar Content       */
/* ===================== */
.citations-sidebar-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 20px;
    gap: 16px;
}

.citations-sidebar-content::-webkit-scrollbar {
    width: 6px;
}

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

.citations-sidebar-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

@media (hover: hover) and (pointer: fine) {
    .citations-sidebar-content::-webkit-scrollbar-thumb:hover {
        background: var(--text-color-tertiary);
    }
}

/* Citations List Container */
.citations-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Citation Card */
.citation-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    background: var(--background-color-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    cursor: pointer;
}

@media (hover: hover) and (pointer: fine) {
    .citation-card:hover {
        background: var(--background-color-tertiary);
        border-color: var(--border-color-hover);
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }
}

@media (hover: hover) and (pointer: fine) {
    [data-theme="dark"] .citation-card:hover {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
}

.citation-card:active {
    transform: translateY(0);
}

/* Citation Card Header */
.citation-card-header {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

/* Citation Favicon */
.citation-favicon {
    position: relative;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border-radius: 4px;
    overflow: hidden;
    background: var(--background-color-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.citation-favicon-fallback {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-color-secondary);
    display: block;
}

/* Citation Title Wrapper */
.citation-title-wrapper {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Citation Title */
.citation-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Citation Domain */
.citation-domain {
    font-size: 12px;
    color: var(--text-color-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Citation External Icon */
.citation-external-icon {
    flex-shrink: 0;
    color: var(--text-color-tertiary);
    transition: color 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
    .citation-card:hover .citation-external-icon {
        color: var(--text-color-secondary);
    }
}

/* Citation Snippet */
.citation-snippet {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-color-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* Empty State */
.citations-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 48px 24px;
    text-align: center;
}

.citations-empty-state svg {
    color: var(--text-color-tertiary);
    opacity: 0.5;
}

.citations-empty-state p {
    margin: 0;
    font-size: 14px;
    color: var(--text-color-secondary);
}

/* Citations Button in Message List */
.assistant-citations-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.assistant-citations-btn svg {
    width: 16px;
    height: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .citations-sidebar {
        width: 100%;
        max-width: 100%;
        border-left: none;
    }

    .citations-sidebar-header {
        padding: 16px;
        padding-top: calc(16px + env(safe-area-inset-top, 0px));
    }

    .citations-sidebar-content {
        padding: 16px;
        padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }

    .citations-list {
        gap: 10px;
    }

    .citation-card {
        padding: 10px;
    }

    .citation-title {
        font-size: 13px;
    }

    .citation-snippet {
        font-size: 12px;
        -webkit-line-clamp: 2;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .citations-sidebar {
        width: 340px;
    }
     }

/* Dark Mode Specific Adjustments */
[data-theme="dark"] .citation-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
}

@media (hover: hover) and (pointer: fine) {
    [data-theme="dark"] .citation-card:hover {
        background: rgba(255, 255, 255, 0.06);
        border-color: rgba(255, 255, 255, 0.12);
    }
}

[data-theme="dark"] .citation-favicon {
    background: rgba(255, 255, 255, 0.05);
}

/* Light Mode Specific Adjustments */
[data-theme="light"] .citation-card {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.08);
}

@media (hover: hover) and (pointer: fine) {
    [data-theme="light"] .citation-card:hover {
        background: rgba(0, 0, 0, 0.04);
        border-color: rgba(0, 0, 0, 0.12);
    }
}

[data-theme="light"] .citation-favicon {
    background: rgba(0, 0, 0, 0.04);
}

/* Accessibility */
.citation-card:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Animation */

.citation-card {
    animation: fadeSlideIn 0.3s ease backwards;
}

.citation-card:nth-child(1) { animation-delay: 0.05s; }
.citation-card:nth-child(2) { animation-delay: 0.1s; }
.citation-card:nth-child(3) { animation-delay: 0.15s; }
.citation-card:nth-child(4) { animation-delay: 0.2s; }
.citation-card:nth-child(5) { animation-delay: 0.25s; }