/* AI Document Library - Main Styles */

:root {
    /* Light Theme */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --border-color: #E5E7EB;
    --ai-accent: #0EA5E9;
    --ai-glow: #00D4FF;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --processing: #8B5CF6;
    
    /* Gradients */
    --gradient-ai: linear-gradient(135deg, #667EEA 0%, #00D4FF 100%);
    --gradient-dark: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
}

[data-theme="dark"] {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    --text-primary: #F1F5F9;
    --text-secondary: #CBD5E1;
    --text-muted: #94A3B8;
    --border-color: #334155;
    --ai-accent: #00D4FF;
    --ai-glow: #00D4FF;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

/* AI Chat Panel Styles */
.ai-chat-panel {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 35%;
    background: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 1000;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.ai-chat-panel.active {
    transform: translateX(0);
}

.ai-chat-panel.minimized {
    width: 60px;
    transform: translateX(calc(100% - 60px));
    cursor: pointer;
}

.ai-chat-panel.minimized .ai-panel-header {
    padding: 0.5rem;
    text-align: center;
}

.ai-chat-panel.minimized .ai-panel-header h5,
.ai-chat-panel.minimized .ai-panel-controls .btn:not(.minimize-btn),
.ai-chat-panel.minimized .selected-docs-info,
.ai-chat-panel.minimized .ai-chat-messages,
.ai-chat-panel.minimized .ai-references,
.ai-chat-panel.minimized .ai-chat-input {
    display: none !important;
}

.ai-chat-panel.minimized .ai-panel-controls {
    justify-content: center;
}

.ai-chat-panel.minimized .minimize-btn {
    background: var(--ai-accent) !important;
    color: white !important;
    border-color: var(--ai-accent) !important;
}

/* Floating expand button for better UX */
.ai-expand-button {
    position: fixed;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--ai-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1001;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    transition: all 0.3s ease;
    animation: pulse-expand 2s infinite;
}

.ai-expand-button:hover {
    background: var(--ai-glow);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 16px rgba(14, 165, 233, 0.4);
}

@keyframes pulse-expand {
    0%, 100% {
        box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    }
    50% {
        box-shadow: 0 4px 12px rgba(14, 165, 233, 0.6), 0 0 0 8px rgba(14, 165, 233, 0.1);
    }
}

.ai-panel-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.ai-panel-controls .btn {
    margin-left: 0.25rem;
}

.selected-docs-info {
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 0.5rem;
    margin-top: 0.5rem;
}

.selected-docs-list {
    margin-top: 0.25rem;
}

.ai-chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ai-welcome-message {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.ai-welcome-message h6 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.ai-welcome-message ul {
    margin-top: 1rem;
    padding-left: 1.5rem;
}

.ai-message {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.ai-message.user-message {
    flex-direction: row-reverse;
}

.ai-message.user-message .message-content {
    background: var(--ai-accent);
    color: white;
    border-radius: 1rem 1rem 0.25rem 1rem;
}

.message-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.ai-message.user-message .message-avatar {
    background: var(--ai-accent);
    color: white;
}

.message-content {
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    border-radius: 1rem 1rem 1rem 0.25rem;
    max-width: 85%;
    position: relative;
}

.message-text {
    line-height: 1.5;
}

.message-references {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.reference-chip {
    background: var(--ai-accent);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.reference-chip:hover {
    background: var(--ai-glow);
}

.citation {
    background: var(--warning);
    color: white;
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    cursor: pointer;
    text-decoration: none;
}

.citation:hover {
    background: #E97400;
}

.message-time {
    font-size: 0.625rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.ai-typing {
    opacity: 0.7;
}

.typing-dots {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.typing-dots span {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-0.5rem);
        opacity: 1;
    }
}

.ai-references {
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    max-height: 200px;
    overflow-y: auto;
}

.references-header {
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.references-list {
    padding: 0.5rem;
}

.reference-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.reference-item:hover {
    background: var(--bg-tertiary);
}

.reference-number {
    width: 1.5rem;
    height: 1.5rem;
    background: var(--ai-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.reference-content {
    flex: 1;
}

.reference-doc {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.reference-page {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.reference-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
    font-style: italic;
}

.ai-chat-input {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.ai-suggestions {
    margin-top: 0.5rem;
}

.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.chip {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.chip:hover {
    background: var(--ai-accent);
    color: white;
    border-color: var(--ai-accent);
}

/* Document Selection for AI */
.ai-select-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 10;
    display: none;
}

.document-card.ai-selected {
    border: 2px solid var(--ai-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.document-card.ai-selected .ai-select-btn {
    background: var(--ai-accent);
    border-color: var(--ai-accent);
    color: white;
}

/* Main content adjustment when AI panel is open */
.main-content {
    transition: margin-right 0.3s ease-in-out;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .ai-chat-panel {
        width: 40%;
    }
}

@media (max-width: 768px) {
    .ai-chat-panel {
        width: 100%;
    }

    .ai-chat-panel.minimized {
        width: 50px;
        transform: translateX(calc(100% - 50px));
    }
}

/* Navbar */
#mainNav {
    background: var(--gradient-ai);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    height: 60px;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
    color: white !important;
}

.mode-switcher .btn-group {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2px;
}

.mode-switcher .btn {
    border: none;
    border-radius: 18px;
    padding: 4px 12px;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.mode-switcher .btn-check:checked + .btn {
    background: white;
    color: var(--ai-accent);
}

.search-container {
    max-width: 400px;
    width: 100%;
}

.search-container .input-group {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 25px;
    overflow: hidden;
}

.search-container input {
    background: transparent;
    color: white;
    padding: 8px 16px;
}

.search-container input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

/* System Health Bar */
.system-health-bar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 0;
    margin-top: 60px;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    font-size: 0.875rem;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 6px;
    animation: pulse 2s infinite;
}

.status-healthy {
    background: var(--success);
}

.status-warning {
    background: var(--warning);
}

.status-error {
    background: var(--error);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Container */
.main-container {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

/* AI Panel */
.ai-panel {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    height: 100%;
    padding: 0;
}

.ai-assistant {
    background: var(--bg-primary);
}

.ai-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.model-selector {
    margin-top: 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
}

/* Quick Actions */
.quick-actions {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.btn-quick {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.btn-quick:hover {
    background: var(--ai-accent);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

/* Chat Area */
.chat-area {
    background: var(--bg-primary);
    padding: 1rem;
}

.chat-message {
    margin-bottom: 1rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message.user {
    text-align: right;
}

.chat-message.user .message-bubble {
    background: var(--ai-accent);
    color: white;
    display: inline-block;
    padding: 0.75rem 1rem;
    border-radius: 18px 18px 4px 18px;
    max-width: 80%;
}

.chat-message.ai .message-bubble {
    background: var(--bg-secondary);
    display: inline-block;
    padding: 0.75rem 1rem;
    border-radius: 18px 18px 18px 4px;
    max-width: 90%;
}

.confidence-badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    background: var(--success);
    color: white;
    margin-left: 0.5rem;
}

/* Context Bar */
.context-bar {
    background: var(--bg-secondary);
}

.context-bar .progress {
    background: var(--bg-tertiary);
}

.context-bar .progress-bar {
    background: var(--gradient-ai);
}

/* Document Canvas */
.document-canvas {
    background: var(--bg-primary);
    height: 100%;
    padding: 0;
}

.canvas-container {
    display: flex;
    flex-direction: column;
}

/* Document Grid */
.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1rem;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.document-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.document-card:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--ai-accent);
}

.document-card .status-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-badge.ready {
    background: var(--success);
}

.status-badge.processing {
    background: var(--processing);
    animation: pulse 1s infinite;
}

.status-badge.error {
    background: var(--error);
}

/* Upload Zone */
.upload-zone {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    transition: all 0.3s;
    max-width: 500px;
    width: 100%;
}

.upload-zone.drag-over {
    background: var(--gradient-ai);
    color: white;
    border-color: var(--ai-accent);
    transform: scale(1.02);
}

/* Processing Queue */
.processing-queue {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    max-height: 300px;
    overflow-y: auto;
}

.stream-indicators {
    display: inline-flex;
    gap: 4px;
}

.stream-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-tertiary);
}

.stream-dot.active {
    background: var(--success);
    animation: pulse 1s infinite;
}

.queue-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.queue-item .status-icon {
    font-size: 1.25rem;
}

.queue-item.queued .status-icon {
    color: var(--text-muted);
}

.queue-item.converting .status-icon {
    color: var(--warning);
    animation: spin 1s linear infinite;
}

.queue-item.analyzing .status-icon {
    color: var(--processing);
    animation: pulse 1s infinite;
}

.queue-item.ready .status-icon {
    color: var(--success);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Smart Panel */
.smart-panel {
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    height: 100%;
    padding: 0;
}

.panel-container {
    background: var(--bg-primary);
}

.insight-card {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
}

/* PDF Viewer */
.pdf-viewer {
    background: var(--bg-tertiary);
    display: flex;
    flex-direction: column;
}

.viewer-content {
    flex: 1;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

#pdfCanvas {
    max-width: 100%;
    height: auto;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .ai-panel, .smart-panel {
        display: none;
    }
    
    .document-canvas {
        width: 100%;
    }
    
    .document-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}