/* Custom styles for RAG Q&A System UI */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --border-radius: 8px;
}

/* General */
body {
    background-color: #f8f9fa;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.container {
    max-width: 1200px;
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.health-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.health-indicator .status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.health-indicator .status-dot.healthy {
    background-color: var(--success-color);
    animation: pulse 2s infinite;
}

.health-indicator .status-dot.unhealthy {
    background-color: var(--danger-color);
}

.health-indicator .status-dot.checking {
    background-color: var(--warning-color);
    animation: blink 1s infinite;
}

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

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Tabs */
.nav-tabs {
    margin-bottom: 2rem;
}

.nav-tabs .nav-link {
    font-weight: 500;
    color: #6c757d;
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* Drag & Drop Zone */
.drop-zone {
    border: 2px dashed #dee2e6;
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    background-color: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s ease;
}

.drop-zone:hover {
    border-color: var(--primary-color);
    background-color: #e7f1ff;
}

.drop-zone.drag-over {
    border-color: var(--primary-color);
    background-color: #e7f1ff;
    border-style: solid;
}

.drop-zone i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* File Upload */
.upload-result {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: #fff;
    border: 1px solid #dee2e6;
}

.upload-result .result-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.upload-result .result-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Query Section */
#questionInput {
    resize: vertical;
    min-height: 100px;
}

.char-counter {
    font-size: 0.875rem;
    color: #6c757d;
    text-align: right;
    margin-top: 0.25rem;
}

.char-counter.warning {
    color: var(--warning-color);
}

.char-counter.danger {
    color: var(--danger-color);
}

.query-options {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 1rem 0;
}

/* Answer Display */
.answer-card {
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.answer-card .question-text {
    color: #6c757d;
    font-size: 0.875rem;
    font-style: italic;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #dee2e6;
}

.answer-card .answer-text {
    line-height: 1.6;
    white-space: pre-wrap;
}

.answer-card .processing-time {
    margin-top: 1rem;
    font-size: 0.875rem;
}

/* Streaming Animation */
.streaming-indicator {
    display: inline-block;
    margin-left: 0.5rem;
}

.streaming-indicator::after {
    content: '...';
    animation: streaming-dots 1.5s infinite;
}

@keyframes streaming-dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

.streaming-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background-color: var(--primary-color);
    animation: cursor-blink 1s infinite;
    margin-left: 2px;
    vertical-align: text-bottom;
}

@keyframes cursor-blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Sources Section */
.sources-section {
    margin-top: 2rem;
}

.sources-section .section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #495057;
}

.accordion-item {
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.accordion-button {
    font-weight: 500;
}

.accordion-button:not(.collapsed) {
    background-color: #e7f1ff;
    color: var(--primary-color);
}

.source-content {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
}

.source-metadata {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid #dee2e6;
}

/* Evaluation Section */
.evaluation-section {
    margin-top: 1.5rem;
}

.evaluation-card {
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    padding: 1rem;
}

.evaluation-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.metric-badge {
    display: inline-flex;
    align-items: center;
    margin: 0.25rem 0;
}

.metric-badge .badge {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
}

.metric-info {
    cursor: help;
}

/* Status Section */
.status-card {
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.status-card .status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.status-card .status-item:last-child {
    border-bottom: none;
}

.status-card .status-label {
    font-weight: 500;
    color: #495057;
}

.status-card .status-value {
    font-weight: 600;
}

/* Collection Info */
.collection-stat {
    text-align: center;
    padding: 1.5rem;
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.collection-stat .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    word-break: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.collection-stat .stat-label {
    font-size: 0.875rem;
    color: #6c757d;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Loading States */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    border-radius: var(--border-radius);
}

.btn-loading {
    position: relative;
}

.btn-loading .spinner-border {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
}

/* Toast Container */
#toastContainer {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1050;
    min-width: 300px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.125rem;
    margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .query-options {
        flex-direction: column;
        gap: 0.75rem;
    }

    .drop-zone {
        padding: 2rem 1rem;
    }

    .collection-stat .stat-value {
        font-size: 2rem;
    }

    #toastContainer {
        top: auto;
        bottom: 1rem;
        left: 1rem;
        right: 1rem;
        min-width: auto;
    }
}

/* Utilities */
.text-muted-light {
    color: #adb5bd;
}

.cursor-pointer {
    cursor: pointer;
}

.user-select-none {
    user-select: none;
}

.shadow-sm-custom {
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}


/* =========================
   MARKDOWN ANSWER STYLING
   ========================= */

.markdown-body {
  line-height: 1.65;
  font-size: 0.95rem;
  color: #1f2937;
}

/* Headings */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin-top: 1.2em;
  margin-bottom: 0.6em;
  font-weight: 600;
}

/* Paragraphs */
.markdown-body p {
  margin-bottom: 0.8em;
}

/* Lists */
.markdown-body ul,
.markdown-body ol {
  padding-left: 1.5em;
  margin-bottom: 1em;
}

.markdown-body li {
  margin-bottom: 0.4em;
}

/* Code blocks */
.markdown-body pre {
  background: #0f172a;
  color: #e5e7eb;
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
}

.markdown-body code {
  background: #f1f5f9;
  color: #0f172a;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

/* Inline code override */
.markdown-body pre code {
  background: none;
  color: inherit;
  padding: 0;
}

/* Blockquotes */
.markdown-body blockquote {
  border-left: 4px solid #3b82f6;
  padding-left: 1em;
  color: #475569;
  margin: 1em 0;
  background: #f8fafc;
}

/* Tables */
.markdown-body table {
  border-collapse: collapse;
  margin: 1em 0;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid #e5e7eb;
  padding: 8px 12px;
}

.markdown-body th {
  background: #f1f5f9;
  font-weight: 600;
}