/* University Knowledge Assistant - Advanced RAG Demo */
* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 100%);
    color: #e0e0e0;
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 24px;
}

header h1 {
    margin: 0 0 8px 0;
    font-size: 2.5rem;
    color: #fbbf24;
}

.subtitle {
    color: #9ca3af;
    margin: 0;
}

main {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.control-panel {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary, .btn-mic, .btn-upload {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(90deg, #fbbf24, #f59e0b);
    color: #1a1a1a;
}

.btn-mic {
    background: linear-gradient(90deg, #ef4444, #dc2626);
    color: #fff;
}

.btn-secondary {
    background: #333;
    color: #ccc;
}

.btn-upload {
    background: linear-gradient(90deg, #8b5cf6, #7c3aed);
    color: #fff;
}

.status-panel {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.status-item {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-size: 13px;
}

.workspace {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.panel {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.panel h3 {
    margin-top: 0;
    color: #fbbf24;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.doc-content, .graph-content {
    max-height: 200px;
    overflow-y: auto;
    font-size: 12px;
}

.doc-item {
    padding: 8px;
    margin: 8px 0;
    background: rgba(251, 191, 36, 0.1);
    border-radius: 6px;
    border-left: 3px solid #fbbf24;
}

.response-panel {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.response-panel h3 {
    margin-top: 0;
    color: #fbbf24;
}

.answer-content {
    line-height: 1.6;
    margin-bottom: 15px;
}

.citations-content {
    padding: 10px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    font-size: 11px;
}

.info-panel {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
}

.info-panel h3 {
    margin-top: 0;
    color: #fbbf24;
}

.info-panel ol {
    margin: 16px 0;
    padding-left: 20px;
}

.info-panel ul {
    margin: 10px 0;
    padding-left: 20px;
}

.hint {
    color: #666;
    font-style: italic;
}

@media (max-width: 768px) {
    main {
        padding: 10px;
    }
    
    .control-panel {
        flex-direction: column;
    }
}