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

/* Skip Link (a11y) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: #0d9488;
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 0 8px 8px;
    z-index: 300;
    font-size: 0.85rem;
    text-decoration: none;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* Focus Styles (a11y) */
:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
}

/* Language Toggle */
.lang-toggle {
    position: fixed;
    top: 20px;
    right: 24px;
    display: flex;
    gap: 4px;
    z-index: 100;
    background: #f3f4f6;
    border-radius: 10px;
    padding: 4px;
}

.lang-btn {
    border: none;
    background: transparent;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #6b7280;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
    letter-spacing: 0.5px;
}

.lang-btn.active {
    background: #fff;
    color: #0d9488;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.lang-btn:hover:not(.active) {
    color: #374151;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #1f2937;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#app {
    flex: 1;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Search Section */
#search-section {
    transition: all 0.4s ease;
}

#search-section.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
    text-align: center;
}

#search-section.compact {
    padding: 30px 0 20px;
    min-height: auto;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 30px;
}

#search-section.compact .logo h1 {
    font-size: 1.5rem;
}

#search-section.compact .tagline {
    display: none;
}

#search-section.compact .hints {
    display: none;
}

#search-section.compact .search-history {
    display: none;
}

.logo h1 {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: -1px;
    margin-bottom: 8px;
    transition: font-size 0.4s ease;
}

.logo .highlight {
    font-weight: 700;
    color: #0d9488;
}

.tagline {
    color: #6b7280;
    font-size: 1rem;
    margin-bottom: 40px;
}

#search-form {
    width: 100%;
    max-width: 600px;
}

.search-bar {
    display: flex;
    align-items: center;
    border: 2px solid #e5e7eb;
    border-radius: 24px;
    padding: 6px 6px 6px 16px;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-bar:focus-within {
    border-color: #0d9488;
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.search-icon {
    flex-shrink: 0;
    margin-right: 10px;
}

#claim-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    padding: 10px 0;
    background: transparent;
}

#search-btn {
    flex-shrink: 0;
    background: #0d9488;
    color: #fff;
    border: none;
    border-radius: 20px;
    padding: 10px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

#search-btn:hover {
    background: #0f766e;
}

.hints {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.hints span {
    font-size: 0.8rem;
    color: #6b7280;
    background: #f3f4f6;
    padding: 4px 12px;
    border-radius: 12px;
}

/* Search History */
.search-history {
    width: 100%;
    max-width: 600px;
    margin-top: 8px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.8rem;
    color: #9ca3af;
}

.history-clear {
    border: none;
    background: none;
    color: #9ca3af;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 4px;
}

.history-clear:hover {
    color: #dc2626;
    background: #fef2f2;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #374151;
    border-bottom: 1px solid #f9fafb;
    transition: background 0.15s;
}

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

.history-item:hover {
    background: #f0fdfa;
}

.history-verdict {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 8px;
    flex-shrink: 0;
}

.history-verdict.hv-true, .history-verdict.hv-mostly_true { background: #dcfce7; color: #16a34a; }
.history-verdict.hv-mixed { background: #fef3c7; color: #d97706; }
.history-verdict.hv-mostly_false, .history-verdict.hv-false { background: #fee2e2; color: #dc2626; }
.history-verdict.hv-unverifiable { background: #f3f4f6; color: #6b7280; }

/* Result Actions */
.result-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-bottom: 16px;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid #e5e7eb;
    background: #fff;
    color: #6b7280;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn:hover {
    background: #f9fafb;
    color: #374151;
    border-color: #d1d5db;
}

.action-btn.copied {
    background: #f0fdf4;
    color: #16a34a;
    border-color: #bbf7d0;
}

/* Loading */
#loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 0;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #e5e7eb;
    border-top-color: #0d9488;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 20px;
}

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

#loading-text {
    font-size: 1.1rem;
    color: #4b5563;
    margin-bottom: 24px;
}

.loading-steps {
    display: flex;
    gap: 20px;
}

.step {
    font-size: 0.85rem;
    color: #9ca3af;
    padding: 6px 14px;
    border-radius: 16px;
    background: #f9fafb;
    transition: all 0.3s;
}

.step.active {
    color: #0d9488;
    background: #f0fdfa;
    font-weight: 600;
}

.step.done {
    color: #16a34a;
    background: #f0fdf4;
}

/* Results */
#results {
    padding-bottom: 40px;
}

/* Verdict Card */
#verdict-card {
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    text-align: center;
}

.verdict-true {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #bbf7d0;
}

.verdict-mostly_true {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #bbf7d0;
}

.verdict-mixed {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fde68a;
}

.verdict-mostly_false {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fecaca;
}

.verdict-false {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fecaca;
}

.verdict-unverifiable {
    background: linear-gradient(135deg, #f9fafb, #f3f4f6);
    border: 1px solid #e5e7eb;
}

.verdict-badge {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 20px;
    border-radius: 20px;
    margin-bottom: 16px;
    color: #fff;
}

.badge-true, .badge-mostly_true { background: #16a34a; }
.badge-mixed { background: #f59e0b; }
.badge-mostly_false, .badge-false { background: #dc2626; }
.badge-unverifiable { background: #6b7280; }

.verdict-summary {
    font-size: 1.15rem;
    line-height: 1.6;
    color: #374151;
    margin-bottom: 12px;
}

.verdict-nuance {
    font-size: 0.9rem;
    color: #6b7280;
    font-style: italic;
}

.confidence-bar {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.85rem;
    color: #6b7280;
}

.confidence-track {
    width: 120px;
    height: 6px;
    background: rgba(0,0,0,0.1);
    border-radius: 3px;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    border-radius: 3px;
    background: #0d9488;
    transition: width 0.5s ease;
}

/* Source Coverage */
.source-coverage {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.85rem;
    color: #6b7280;
}

.coverage-track {
    width: 120px;
    height: 6px;
    background: rgba(0,0,0,0.1);
    border-radius: 3px;
    overflow: hidden;
}

.coverage-fill {
    height: 100%;
    border-radius: 3px;
    background: #10b981;
    transition: width 0.5s ease;
}

.coverage-sources {
    text-align: center;
    font-size: 0.8rem;
    color: #9ca3af;
    margin-top: 6px;
}

.coverage-warning {
    margin-top: 12px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    text-align: center;
}

.coverage-low {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.coverage-none {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Evidence */
#evidence-section h2, #sources-section h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1f2937;
}

.evidence-card {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 12px;
    transition: box-shadow 0.2s;
}

.evidence-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.evidence-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.evidence-source {
    font-weight: 600;
    font-size: 0.9rem;
    color: #0d9488;
}

.evidence-strength {
    font-size: 0.75rem;
    padding: 2px 10px;
    border-radius: 10px;
    font-weight: 600;
}

.strength-strong {
    background: #dcfce7;
    color: #16a34a;
}

.strength-moderate {
    background: #fef3c7;
    color: #d97706;
}

.strength-weak {
    background: #f3f4f6;
    color: #6b7280;
}

.evidence-finding {
    font-size: 0.95rem;
    color: #374151;
    line-height: 1.5;
    margin-bottom: 8px;
}

.evidence-link {
    font-size: 0.8rem;
    color: #0d9488;
    text-decoration: none;
}

.evidence-link:hover {
    text-decoration: underline;
}

/* Raw Sources */
.source-group {
    margin-bottom: 20px;
}

.source-group h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #4b5563;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid #f3f4f6;
}

.source-item {
    padding: 10px 0;
    border-bottom: 1px solid #f9fafb;
}

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

.source-title {
    font-size: 0.9rem;
    color: #0d9488;
    text-decoration: none;
    font-weight: 500;
}

.source-title:hover {
    text-decoration: underline;
}

.source-meta {
    font-size: 0.8rem;
    color: #9ca3af;
    margin-top: 4px;
}

.source-attribution {
    font-size: 0.75rem;
    color: #9ca3af;
    font-style: italic;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #e5e7eb;
}

/* Disclaimer */
#disclaimer-section {
    margin-top: 24px;
    padding: 16px 20px;
    background: #f9fafb;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    font-size: 0.85rem;
    color: #6b7280;
    line-height: 1.5;
}

/* Error */
.error-card {
    text-align: center;
    padding: 40px;
    border: 1px solid #fecaca;
    background: #fef2f2;
    border-radius: 16px;
}

.error-card h3 {
    color: #dc2626;
    margin-bottom: 12px;
}

.error-card p {
    color: #7f1d1d;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.error-card button {
    background: #dc2626;
    color: #fff;
    border: none;
    border-radius: 20px;
    padding: 10px 24px;
    font-size: 0.9rem;
    cursor: pointer;
}

.hidden {
    display: none !important;
}

/* Footer */
footer {
    text-align: center;
    padding: 24px 20px;
    border-top: 1px solid #f3f4f6;
    color: #9ca3af;
    font-size: 0.8rem;
}

.footer-note {
    margin-top: 4px;
    font-size: 0.75rem;
}

.footer-links {
    margin-top: 8px;
    font-size: 0.8rem;
}

.footer-links a {
    color: #6b7280;
    text-decoration: none;
    border-bottom: 1px solid #d1d5db;
    padding-bottom: 1px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #0d9488;
    border-color: #0d9488;
}

.footer-sep {
    color: #d1d5db;
    margin: 0 8px;
}

/* Legal Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: #fff;
    border-radius: 16px;
    max-width: 640px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 40px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    border: none;
    background: none;
    font-size: 1.5rem;
    color: #9ca3af;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
}

.modal-close:hover {
    background: #f3f4f6;
    color: #374151;
}

.modal-content h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 24px;
    padding-right: 30px;
}

.modal-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    margin-top: 24px;
    margin-bottom: 8px;
}

.modal-content h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #4b5563;
    margin-top: 16px;
    margin-bottom: 6px;
}

.modal-content p {
    font-size: 0.9rem;
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 8px;
}

.modal-content ul {
    margin: 8px 0 12px 20px;
    font-size: 0.9rem;
    color: #4b5563;
    line-height: 1.8;
}

.modal-content li {
    margin-bottom: 2px;
}

.modal-content strong {
    color: #1f2937;
}

.modal-content a {
    color: #0d9488;
    text-decoration: none;
    border-bottom: 1px solid #5eead4;
}

.modal-content a:hover {
    border-color: #0d9488;
}

/* Print / PDF Export */
@media print {
    .skip-link, .lang-toggle, #search-form, #loading,
    .result-actions, .footer-links, .modal-overlay,
    #search-section.compact .logo { display: none !important; }

    #search-section.compact { border: none; margin-bottom: 10px; padding: 10px 0; }

    body { background: #fff; }
    #app { max-width: 100%; }
    #results { padding-bottom: 0; }

    .evidence-card { break-inside: avoid; }
    .source-group { break-inside: avoid; }

    footer { border-top: 1px solid #ccc; font-size: 0.7rem; }

    @page { margin: 2cm; }
}

/* Responsive */
@media (max-width: 600px) {
    .logo h1 { font-size: 2rem; }
    .search-bar { flex-wrap: wrap; border-radius: 16px; }
    #search-btn { width: 100%; margin-top: 8px; border-radius: 12px; }
    .loading-steps { flex-direction: column; align-items: center; }
    #verdict-card { padding: 24px 16px; }
}