/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a5490;
    --primary-dark: #0d3a6b;
    --secondary-color: #4a7ba7;
    --text-color: #212121;
    --text-secondary: #555555;
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa;
    --border-color: #dee2e6;
    --success-color: #2d7a3e;
    --warning-color: #9a5b13;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
    --max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.nav {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

/* Hero section */
.hero {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.badge {
    display: inline-block;
    background-color: var(--success-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.hero .subtitle {
    font-size: 1.125rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.hero .tagline {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

/* Main content */
main {
    padding: var(--spacing-xl) 0;
}

.section {
    margin-bottom: var(--spacing-xl);
}

.section h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: var(--spacing-xs);
}

.section h2 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
}

.section h3 {
    font-size: 1.125rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.section p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.section ul {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.section li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

/* Code blocks */
.code-block {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.5;
}

code {
    font-family: var(--font-mono);
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9em;
}

/* Pipeline steps */
.pipeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

.step-content h3 {
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    margin-bottom: 0;
}

/* Grid layouts */
.outputs-grid,
.metrics-grid,
.links-grid,
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.output-item,
.metric-item,
.download-item {
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.output-item h3,
.metric-item h3,
.download-item h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--primary-dark);
}

.output-item p,
.metric-item p,
.download-item p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

.download-item .btn {
    margin-top: var(--spacing-sm);
    display: inline-block;
}

/* Metadata grid */
.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.metadata-item {
    padding: var(--spacing-sm);
    background-color: var(--bg-secondary);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metadata-item strong {
    color: var(--text-color);
    font-size: 0.875rem;
}

.metadata-item span {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* Metric cards */
.metrics-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.metric-card {
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Tables */
.table-controls {
    margin-bottom: var(--spacing-sm);
}

.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

thead {
    background-color: var(--bg-secondary);
}

th {
    padding: var(--spacing-sm);
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

tbody tr:hover {
    background-color: var(--bg-secondary);
}

.verified-true {
    color: var(--success-color);
    font-weight: 600;
}

.verified-false {
    color: var(--warning-color);
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
}

/* Candidate gallery */
.candidate-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: flex-end;
    margin-top: var(--spacing-md);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.control-group label {
    font-weight: 600;
    color: var(--text-color);
}

.control-group select,
.control-group input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.candidates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.candidate-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-md);
    box-shadow: 0 8px 20px rgba(13, 58, 107, 0.08);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.candidate-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(13, 58, 107, 0.12);
}

.candidate-card-loading {
    text-align: center;
    cursor: default;
}

.candidate-rank {
    font-weight: 700;
    color: var(--primary-color);
}

.candidate-title {
    margin: var(--spacing-xs) 0;
}

.candidate-meta {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.candidate-score {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.candidate-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.candidate-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
}

.candidate-tag.verified {
    background-color: rgba(45, 122, 62, 0.12);
    color: var(--success-color);
}

.candidate-tag.unverified {
    background-color: rgba(154, 91, 19, 0.12);
    color: var(--warning-color);
}

.pill {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background-color: #e8f0fa;
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 600;
}

.pill-verified {
    background-color: rgba(45, 122, 62, 0.12);
    color: var(--success-color);
}

.pill-unverified {
    background-color: rgba(154, 91, 19, 0.12);
    color: var(--warning-color);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(33, 33, 33, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    z-index: 200;
}

.modal-content {
    background-color: var(--bg-color);
    border-radius: 16px;
    padding: var(--spacing-lg);
    width: min(900px, 100%);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.modal-content.modal-narrow {
    width: min(520px, 100%);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.modal-subtitle {
    color: var(--text-secondary);
    margin: 0;
}

.modal-close {
    border: none;
    background: var(--bg-secondary);
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.viz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.viz-panel {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: var(--spacing-md);
}

.viz-panel h3 {
    margin-bottom: var(--spacing-sm);
}

.viz-svg,
.viz-canvas {
    width: 100%;
    height: 200px;
    border-radius: 12px;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.detail-item {
    padding: var(--spacing-sm);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.detail-item span {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Notes and disclaimers */
.note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: var(--spacing-sm);
}

.disclaimer {
    padding: var(--spacing-md);
    background-color: #fff9e6;
    border: 1px solid #f0e0a0;
    border-radius: 6px;
    margin-top: var(--spacing-xl);
}

.disclaimer p {
    margin-bottom: 0;
    color: var(--text-color);
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer p {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer-note {
    font-size: 0.875rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .nav .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pipeline {
        gap: var(--spacing-sm);
    }

    .step {
        flex-direction: column;
        align-items: flex-start;
    }

    .outputs-grid,
    .metrics-grid,
    .links-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }

    .metrics-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .candidate-controls {
        align-items: stretch;
    }

    .modal-content {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .metrics-cards {
        grid-template-columns: 1fr;
    }

    .metadata-grid {
        grid-template-columns: 1fr;
    }
}