/* Academic-Modern Theme for Fraud Case Summarizer Demo */

:root {
    /* Color palette: off-white paper, sepia/taupe accents */
    --paper-bg: #faf8f5;
    --card-bg: #ffffff;
    --border-light: #e8e4dd;
    --border-medium: #d4cec0;
    --accent-sepia: #a08872;
    --accent-taupe: #8b7e6f;
    --text-dark: #2c2417;
    --text-medium: #5a5246;
    --text-light: #7a6f5f;
    --success-green: #5a7d5a;
    --warning-yellow: #c9a961;
    --danger-red: #a05454;
    --info-blue: #5d7a9b;
    
    /* Typography - Note: Crimson Text is optional, falls back to Georgia */
    --font-serif: Georgia, 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
}

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--paper-bg);
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Header */
header {
    border-bottom: 2px solid var(--border-medium);
    padding: 30px 40px 20px;
    background: linear-gradient(to bottom, #fdfcfb 0%, #ffffff 100%);
}

header h1 {
    font-family: var(--font-serif);
    font-size: 2.4em;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

header .subtitle {
    font-size: 1.05em;
    color: var(--text-medium);
    font-style: italic;
    margin-bottom: 15px;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.9em;
    margin-top: 15px;
}

.nav-links a {
    color: var(--accent-taupe);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--accent-sepia);
    border-bottom-color: var(--accent-sepia);
}

/* Main content */
main {
    padding: 30px 40px;
}

h2 {
    font-family: var(--font-serif);
    font-size: 1.8em;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-medium);
}

h3 {
    font-family: var(--font-serif);
    font-size: 1.4em;
    font-weight: 400;
    color: var(--text-dark);
    margin: 20px 0 10px;
}

h4 {
    font-family: var(--font-sans);
    font-size: 1.05em;
    font-weight: 600;
    color: var(--text-medium);
    margin: 15px 0 8px;
}

p {
    margin-bottom: 12px;
    color: var(--text-medium);
}

/* Abstract section */
.abstract {
    padding: 25px;
    background: #f9f7f3;
    border-left: 3px solid var(--accent-sepia);
    margin: 20px 0 30px;
    font-size: 0.98em;
    line-height: 1.7;
}

/* Two-column layout for case explorer */
.case-explorer-wrapper {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 30px;
    margin-top: 20px;
}

/* Left column: case list */
.case-list-panel {
    border-right: 1px solid var(--border-light);
    padding-right: 25px;
}

.filters {
    margin-bottom: 20px;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.filter-chip {
    padding: 6px 12px;
    border: 1px solid var(--border-medium);
    background: white;
    color: var(--text-medium);
    font-size: 0.85em;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: 3px;
}

.filter-chip:hover {
    background: var(--paper-bg);
}

.filter-chip.active {
    background: var(--accent-sepia);
    color: white;
    border-color: var(--accent-sepia);
}

.search-box {
    margin-top: 15px;
}

.search-box input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-medium);
    font-family: var(--font-sans);
    font-size: 0.9em;
}

.case-list {
    margin-top: 15px;
    max-height: 600px;
    overflow-y: auto;
}

.case-list-item {
    padding: 12px;
    border: 1px solid var(--border-light);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
    background: white;
}

.case-list-item:hover {
    background: var(--paper-bg);
    border-color: var(--accent-sepia);
}

.case-list-item.selected {
    background: #f5f3ef;
    border-color: var(--accent-sepia);
    border-left-width: 3px;
}

.case-list-item .case-id {
    font-weight: 600;
    font-size: 0.9em;
    color: var(--text-dark);
}

.case-list-item .case-preview {
    font-size: 0.85em;
    color: var(--text-light);
    margin-top: 4px;
}

/* Right column: case detail */
.case-detail-panel {
    min-height: 500px;
}

.case-header {
    padding: 20px;
    background: #f9f7f3;
    border: 1px solid var(--border-light);
    margin-bottom: 20px;
}

.case-header h3 {
    margin: 0 0 15px 0;
}

.case-meta-row {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.action-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 3px;
    font-size: 0.85em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.action-badge.block {
    background: #f5e5e5;
    color: var(--danger-red);
    border: 1px solid var(--danger-red);
}

.action-badge.hold {
    background: #fef8e8;
    color: var(--warning-yellow);
    border: 1px solid var(--warning-yellow);
}

.action-badge.review {
    background: #e8f0f8;
    color: var(--info-blue);
    border: 1px solid var(--info-blue);
}

.action-badge.monitor {
    background: #e8f5e8;
    color: var(--success-green);
    border: 1px solid var(--success-green);
}

.risk-meter {
    flex: 1;
    min-width: 200px;
}

.risk-meter-label {
    font-size: 0.85em;
    color: var(--text-medium);
    margin-bottom: 4px;
}

.risk-meter-bar {
    height: 20px;
    background: var(--border-light);
    border: 1px solid var(--border-medium);
    position: relative;
    overflow: hidden;
}

.risk-meter-fill {
    height: 100%;
    background: linear-gradient(to right, var(--success-green), var(--warning-yellow), var(--danger-red));
    transition: width 0.5s;
}

.risk-meter-value {
    position: absolute;
    top: 50%;
    right: 5px;
    transform: translateY(-50%);
    font-size: 0.75em;
    font-weight: 600;
    color: var(--text-dark);
}

.quick-evidence {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
}

.evidence-item {
    font-size: 0.85em;
}

.evidence-label {
    color: var(--text-light);
    display: block;
}

.evidence-value {
    color: var(--text-dark);
    font-weight: 600;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 2px;
    border-bottom: 2px solid var(--border-medium);
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    font-family: var(--font-sans);
    font-size: 0.95em;
    color: var(--text-medium);
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: -2px;
}

.tab:hover {
    color: var(--accent-sepia);
}

.tab.active {
    color: var(--text-dark);
    border-bottom-color: var(--accent-sepia);
    font-weight: 600;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Narrative section */
.narrative-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.narrative-box {
    padding: 20px;
    background: #fdfcfb;
    border: 1px solid var(--border-light);
    line-height: 1.7;
}

.narrative-box h4 {
    margin-top: 0;
}

/* Explainability section */
.shap-summary {
    padding: 15px;
    background: #f9f7f3;
    border-left: 3px solid var(--accent-sepia);
    margin-bottom: 20px;
    font-size: 0.95em;
}

.shap-bars {
    margin-top: 15px;
}

.shap-bar-item {
    margin-bottom: 12px;
}

.shap-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.9em;
    margin-bottom: 4px;
}

.shap-feature {
    font-family: var(--font-mono);
    color: var(--text-medium);
}

.shap-value {
    font-weight: 600;
}

.shap-value.positive {
    color: var(--danger-red);
}

.shap-value.negative {
    color: var(--success-green);
}

.shap-bar-track {
    height: 24px;
    background: var(--border-light);
    border: 1px solid var(--border-medium);
    position: relative;
    overflow: hidden;
}

.shap-bar-fill {
    height: 100%;
    position: absolute;
    top: 0;
    transition: width 0.3s;
}

.shap-bar-fill.positive {
    background: linear-gradient(to right, transparent, rgba(160, 84, 84, 0.4));
    left: 50%;
}

.shap-bar-fill.negative {
    background: linear-gradient(to left, transparent, rgba(90, 125, 90, 0.4));
    right: 50%;
}

/* Evidence table */
.evidence-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
}

.evidence-table th {
    text-align: left;
    padding: 10px;
    background: #f9f7f3;
    border-bottom: 2px solid var(--border-medium);
    font-weight: 600;
    color: var(--text-dark);
}

.evidence-table td {
    padding: 10px;
    border-bottom: 1px solid var(--border-light);
}

.evidence-table tr:last-child td {
    border-bottom: none;
}

.evidence-table td:first-child {
    font-weight: 600;
    color: var(--text-medium);
}

/* Prompt trace */
.prompt-trace-box {
    padding: 15px;
    background: #f5f3ef;
    border: 1px solid var(--border-medium);
    font-family: var(--font-mono);
    font-size: 0.85em;
    line-height: 1.5;
    color: var(--text-medium);
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Details/collapsible sections */
details {
    margin: 25px 0;
    padding: 20px;
    border: 1px solid var(--border-light);
    background: #fdfcfb;
}

summary {
    font-family: var(--font-serif);
    font-size: 1.3em;
    font-weight: 400;
    color: var(--text-dark);
    cursor: pointer;
    list-style: none;
    padding-left: 25px;
    position: relative;
}

summary::-webkit-details-marker {
    display: none;
}

summary::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-sepia);
    transition: transform 0.2s;
}

details[open] summary::before {
    transform: rotate(90deg);
}

details[open] summary {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-light);
}

/* Code blocks */
.code-block {
    padding: 15px;
    background: #f5f3ef;
    border: 1px solid var(--border-medium);
    font-family: var(--font-mono);
    font-size: 0.85em;
    line-height: 1.5;
    overflow-x: auto;
    margin: 15px 0;
}

/* Lists */
ul {
    margin: 10px 0 15px 25px;
}

li {
    margin-bottom: 6px;
    color: var(--text-medium);
}

/* Links */
a {
    color: var(--accent-taupe);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s;
}

a:hover {
    color: var(--accent-sepia);
    border-bottom-color: var(--accent-sepia);
}

/* Footer */
footer {
    margin-top: 40px;
    padding: 25px 40px;
    border-top: 2px solid var(--border-medium);
    text-align: center;
    font-size: 0.9em;
    color: var(--text-light);
    background: #fdfcfb;
}

.disclaimer {
    margin-top: 20px;
    padding: 15px;
    background: #f9f7f3;
    border-left: 3px solid var(--accent-taupe);
    font-size: 0.85em;
    color: var(--text-light);
    font-style: italic;
}

/* Responsive design */
@media (max-width: 1024px) {
    .case-explorer-wrapper {
        grid-template-columns: 1fr;
    }
    
    .case-list-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
        padding-right: 0;
        padding-bottom: 20px;
    }
    
    .narrative-comparison {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    main {
        padding: 20px;
    }
    
    header {
        padding: 20px;
    }
    
    header h1 {
        font-size: 1.8em;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 8px;
    }
    
    .case-meta-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .quick-evidence {
        flex-direction: column;
        gap: 10px;
    }
    
    .tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .tab {
        white-space: nowrap;
    }
}

/* Loading and error states */
.loading {
    padding: 40px;
    text-align: center;
    color: var(--text-light);
}

.error {
    padding: 20px;
    background: #f5e5e5;
    border: 1px solid var(--danger-red);
    color: var(--danger-red);
    margin: 20px 0;
}