/* ============================================
   THROMBOPHILIA TESTING ADVISOR - STYLES
   Clean, search-first, user-friendly design
   ============================================ */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #059669;
    --success-light: #d1fae5;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 40px -10px rgb(0 0 0 / 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--gray-800);
    line-height: 1.6;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   HERO SECTION - Search First
   ============================================ */

.hero {
    padding: 60px 20px 80px;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

/* Quick Start Guide */
.quick-start {
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius);
    padding: 16px 24px;
    margin-bottom: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.quick-start h3 {
    font-size: 0.9rem;
    margin-bottom: 12px;
    opacity: 0.9;
}

.quick-steps {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.quick-step {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.step-num {
    background: rgba(255,255,255,0.3);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
}

/* Dropdown Section */
.dropdown-section {
    margin-bottom: 16px;
}

.dropdown-section label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    opacity: 0.9;
}

.dropdown-section select {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: var(--radius);
    background: white;
    color: var(--gray-800);
    cursor: pointer;
}

.dropdown-section select:focus {
    outline: none;
    border-color: white;
}

/* OR Divider */
.or-divider {
    display: flex;
    align-items: center;
    margin: 16px 0;
}

.or-divider::before,
.or-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.3);
}

.or-divider span {
    padding: 0 16px;
    font-size: 0.85rem;
    opacity: 0.8;
}

.search-hero {
    max-width: 700px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 50px;
    padding: 8px 8px 8px 24px;
    box-shadow: var(--shadow-xl);
    gap: 12px;
}

.search-icon {
    width: 24px;
    height: 24px;
    color: var(--gray-400);
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.1rem;
    color: var(--gray-800);
    background: transparent;
}

.search-box input::placeholder {
    color: var(--gray-400);
}

.search-btn {
    padding: 14px 28px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
}

.search-hints {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    align-items: center;
}

.search-hints span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hint-btn {
    padding: 6px 14px;
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    color: white;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.hint-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    flex: 1;
    background: var(--gray-50);
    padding: 0 20px 40px;
    margin-top: -40px;
    border-radius: 40px 40px 0 0;
    display: none;
}

.main-content.visible {
    display: block;
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   RECOMMENDATION CARD
   ============================================ */

.recommendation-card {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 32px;
    margin-top: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.card-badge {
    background: var(--primary);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.card-badge.hormonal {
    background: var(--warning);
}

.card-category {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.scenario-title {
    font-size: 1.1rem;
    color: var(--gray-700);
    font-weight: 600;
    margin-bottom: 8px;
}

.scenario-desc {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

/* ============================================
   ANSWER SECTION - The Main Output
   ============================================ */

.answer-section {
    margin-bottom: 24px;
}

.answer-box {
    background: linear-gradient(135deg, var(--success), #047857);
    color: white;
    padding: 24px;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 16px;
}

.answer-box.test {
    background: linear-gradient(135deg, #eab308, #ca8a04);
}

.answer-box.norx {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.answer-box.rx {
    background: linear-gradient(135deg, #16a34a, #15803d);
}

.answer-label {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.answer-value {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.answer-detail {
    font-size: 0.95rem;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto;
}

/* Comparison Row */
.comparison-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.comparison-item {
    text-align: center;
}

.comp-label {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 4px;
    text-transform: uppercase;
}

.comp-value {
    font-weight: 700;
    font-size: 1rem;
}

.comparison-item.model .comp-value {
    color: var(--primary);
}

.comparison-item.ash .comp-value {
    color: var(--success);
}

.comparison-divider {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.comparison-divider.agree {
    background: var(--success-light);
    color: var(--success);
}

.comparison-divider.disagree {
    background: var(--danger-light);
    color: var(--danger);
}

.agree-icon {
    font-size: 1.5rem;
}

/* Verification Table Styles */
.verify-panel {
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
}

.verify-summary {
    background: var(--gray-100);
    padding: 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.verify-summary strong {
    color: var(--primary);
}

.verify-table-container {
    overflow-x: auto;
}

.verify-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.verify-table th,
.verify-table td {
    border: 1px solid var(--gray-200);
    padding: 8px 10px;
    text-align: center;
}

.verify-table th {
    background: var(--gray-100);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.verify-table tr.match {
    background: var(--success-light);
}

.verify-table tr.mismatch {
    background: var(--danger-light);
}

.verify-table td:first-child {
    font-weight: 600;
    text-align: left;
}

/* ASH Full Recommendation */
.ash-recommendation-full {
    margin-top: 20px;
    padding: 16px;
    background: linear-gradient(135deg, var(--success-light) 0%, #ecfdf5 100%);
    border-radius: var(--radius);
    border-left: 4px solid var(--success);
}

.ash-recommendation-full h4 {
    font-size: 0.85rem;
    color: var(--success);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ash-recommendation-full p {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.6;
}

/* ============================================
   DETAILS SECTION (Expandable)
   ============================================ */

.details-section {
    border-top: 1px solid var(--gray-200);
    margin-top: 24px;
}

.details-section summary {
    padding: 16px 0;
    cursor: pointer;
    font-weight: 600;
    color: var(--primary);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.details-section summary::before {
    content: '▶';
    font-size: 0.7rem;
    transition: transform 0.2s;
}

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

.details-content {
    padding-bottom: 20px;
}

.details-content h4 {
    font-size: 0.95rem;
    color: var(--gray-700);
    margin: 20px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-200);
}

/* Thresholds */
.threshold-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.threshold-item {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius);
    text-align: center;
}

.th-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.th-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.th-sublabel {
    display: block;
    font-size: 0.7rem;
    color: var(--gray-500);
    margin-top: 2px;
    font-style: italic;
}

.threshold-item.testing-zone {
    background: rgba(217, 119, 6, 0.1);
    border-radius: 8px;
    padding: 8px 12px;
    border: 1px dashed var(--warning);
}

.th-zone {
    color: var(--warning);
    font-size: 1.1rem;
}

/* Outcomes Table */
.outcomes-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

.outcomes-table th,
.outcomes-table td {
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid var(--gray-200);
}

.outcomes-table th {
    background: var(--gray-50);
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 600;
}

.outcomes-table .highlight-row {
    background: var(--primary-light);
}

/* Outcomes Bar Chart */
.outcomes-chart-container {
    margin-top: 20px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.outcomes-chart-container canvas {
    max-height: 250px;
}

/* Chart */
.chart-section {
    margin-top: 20px;
}

.chart-section canvas {
    max-height: 300px;
}

/* Parameters */
.param-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 12px;
}

.param-item {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius);
}

.param-item label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.param-item input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
}

.param-item small {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.reset-btn {
    margin-top: 8px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
}

.reset-btn:hover {
    background: var(--primary-light);
}

.toggle-group {
    display: flex;
    gap: 8px;
}

.toggle-btn {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--gray-300);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

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

/* Search Again Button */
.search-again-btn {
    width: 100%;
    padding: 16px;
    margin-top: 24px;
    background: var(--gray-100);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    color: var(--gray-600);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.search-again-btn svg {
    width: 20px;
    height: 20px;
}

.search-again-btn:hover {
    background: var(--gray-200);
    border-color: var(--gray-400);
}

/* ============================================
   SEARCH OVERLAY
   ============================================ */

.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
}

.search-overlay.visible {
    display: flex;
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.search-results-panel {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.results-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-header h3 {
    font-size: 1.1rem;
    color: var(--gray-800);
}

.close-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--gray-100);
    font-size: 1.5rem;
    color: var(--gray-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--gray-200);
}

.results-list {
    max-height: 60vh;
    overflow-y: auto;
    padding: 12px;
}

.result-item {
    padding: 16px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
    margin-bottom: 8px;
}

.result-item:hover {
    background: var(--gray-50);
    border-color: var(--primary-light);
}

.result-item.top-match {
    background: var(--primary-light);
    border-color: var(--primary);
}

.result-item .result-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--primary);
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 8px;
}

.result-item.hormonal .result-badge {
    background: var(--warning);
}

.result-item .result-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.result-item .result-desc {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.result-item .result-tag {
    display: inline-block;
    margin-top: 8px;
    padding: 2px 8px;
    background: var(--gray-100);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--gray-500);
}

.result-item .result-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.result-item .result-category {
    font-size: 0.75rem;
    color: var(--gray-500);
    padding: 2px 8px;
    background: var(--gray-100);
    border-radius: 4px;
}

.result-item .result-category.hormonal {
    background: var(--warning-light);
    color: var(--warning);
}

.result-item .result-ash {
    font-size: 0.8rem;
    color: var(--success);
    margin-top: 6px;
    font-style: italic;
}

.no-results {
    padding: 40px;
    text-align: center;
    color: var(--gray-500);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--gray-800);
    color: var(--gray-400);
    padding: 24px 20px;
    text-align: center;
    font-size: 0.85rem;
}

.footer a {
    color: var(--primary-light);
}

.footer .disclaimer {
    margin-top: 8px;
    font-size: 0.75rem;
    opacity: 0.7;
}

/* ============================================
   ABOUT OVERLAY
   ============================================ */

.about-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 20px;
    z-index: 1001;
    overflow-y: auto;
}

.about-overlay.visible {
    display: flex;
    animation: fadeIn 0.2s ease-out;
}

.about-panel {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    padding: 40px;
    position: relative;
    box-shadow: var(--shadow-xl);
}

.about-panel .close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
}

.about-panel h2 {
    font-size: 1.8rem;
    color: var(--gray-800);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary);
}

.about-section {
    margin-bottom: 28px;
}

.about-section h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.about-section p {
    color: var(--gray-700);
    margin-bottom: 12px;
    line-height: 1.7;
}

.about-section ul {
    margin-left: 20px;
    color: var(--gray-700);
}

.about-section li {
    margin-bottom: 6px;
}

.threshold-diagram {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 20px 0;
    border-radius: var(--radius);
    overflow: hidden;
}

.threshold-zone {
    padding: 16px;
    text-align: center;
}

.zone-norx {
    background: #fee2e2;
}

.zone-test {
    background: #fef3c7;
}

.zone-rx {
    background: #d1fae5;
}

.zone-label {
    display: block;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
}

.zone-desc {
    font-size: 0.85rem;
    opacity: 0.8;
}

.threshold-marker {
    background: var(--gray-800);
    color: white;
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.decision-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 12px;
}

.decision-type {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

.decision-type.hormonal {
    border-left-color: var(--warning);
}

.decision-type h4 {
    font-size: 0.95rem;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.decision-type p {
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.formula {
    background: var(--gray-100);
    padding: 16px 24px;
    border-radius: var(--radius);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    text-align: center;
    margin: 16px 0;
    border-left: 4px solid var(--primary);
}

.references {
    font-size: 0.9rem;
}

.references a {
    color: var(--primary);
}

.color-legend {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.legend-color.green {
    background: linear-gradient(135deg, #16a34a, #15803d);
}

.legend-color.yellow {
    background: linear-gradient(135deg, #eab308, #ca8a04);
}

.legend-color.red {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .search-box {
        flex-direction: column;
        border-radius: var(--radius-lg);
        padding: 16px;
    }

    .search-box input {
        width: 100%;
        text-align: center;
    }

    .search-btn {
        width: 100%;
    }

    .threshold-row {
        grid-template-columns: 1fr;
    }

    .comparison-row {
        flex-direction: column;
        gap: 12px;
    }

    .answer-value {
        font-size: 1.4rem;
    }

    .about-panel {
        padding: 24px;
    }

    .decision-types {
        grid-template-columns: 1fr;
    }

    .color-legend {
        flex-direction: column;
        gap: 12px;
    }
}