:root {
    --primary-color: #2c3e50;
    --secondary-color: #27ae60;
    --accent-color: #3498db;
    --light-gray: #f8f9fa;
    --dark-gray: #7f8c8d;
    --error-color: #e74c3c;
    --success-color: #27ae60;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

header {
    text-align: center;
    padding: 40px 0 20px;
}

.logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 15px;
    font-family: 'Arial Rounded MT Bold', 'Arial', sans-serif;
}

.logo-main {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.logo-sl {
    color: var(--primary-color);
}

.logo-go {
    color: var(--secondary-color);
}

.logo-tagline {
    font-size: 1.2rem;
    color: var(--dark-gray);
    margin-top: -10px;
    margin-bottom: 30px;
    font-weight: 500;
}

/* Tab navigation */
.tab-nav {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid #ddd;
}

.tab-btn {
    padding: 12px 25px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-gray);
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.tab-btn:hover:not(.active) {
    color: var(--primary-color);
    border-bottom-color: #ddd;
}

.tab-content {
    display: none;
}

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

.intro-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    margin-bottom: 30px;
}

.intro-section h2 {
    color: var(--primary-color);
    margin-top: 0;
    border-bottom: 2px solid var(--light-gray);
    padding-bottom: 10px;
}

.intro-section p {
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.highlight {
    background-color: rgba(39, 174, 96, 0.1);
    padding: 2px 5px;
    border-radius: 3px;
    color: var(--secondary-color);
    font-weight: 500;
}

.highlight-algo {
    background-color: rgba(155, 89, 182, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
    color: #8e44ad;
    font-weight: 600;
    border-bottom: 1px dashed #9b59b6;
}

.stats-box {
    display: flex;
    gap: 30px;
    margin: 25px 0;
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    text-align: center;
    min-width: 180px;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--dark-gray);
    line-height: 1.4;
}
        
.search-container {
    background: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    position: relative;
}

.search-title {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 25px;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-color);
}

input, button, select, textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: all 0.3s;
}

input:focus, textarea:focus, select:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

input[type="text"], input[type="number"], textarea {
    width: 100%;
    box-sizing: border-box;
}

textarea {
    min-height: 120px;
    resize: vertical;
    font-family: monospace;
    line-height: 1.5;
}

button {
    color: white;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#searchBtn {
    background: var(--accent-color);
    padding: 12px 24px;
}

#searchBtn:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

#downloadBtn {
    background: var(--secondary-color);
    padding: 12px 24px;
}

#downloadBtn:hover {
    background: #219653;
    transform: translateY(-1px);
}

#searchBtnSearchTab {
    background: var(--accent-color);
    padding: 12px 24px;
}

#searchBtnSearchTab:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

#downloadBtnSearchTab {
    background: var(--secondary-color);
    padding: 12px 24px;
}

#downloadBtnSearchTab:hover {
    background: #219653;
    transform: translateY(-1px);
}

button:disabled {
    background: #95a5a6;
    cursor: not-allowed;
    transform: none !important;
}

.confidence-range {
    display: flex;
    gap: 15px;
    align-items: center;
}

.confidence-range input {
    width: 100px;
}

.confidence-range span {
    color: var(--dark-gray);
}

/* Pagination controls */
.pagination-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 25px;
    gap: 15px;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.pagination-size {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-bottom: 5px;
}

.pagination-size label {
    margin-right: 15px;
    color: var(--primary-color);
    font-weight: 600;
}

.pagination-size select {
    width: 90px;
}

.pagination-nav {
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
}

.pagination-nav button {
    margin: 0;
    min-width: 45px;
    padding: 10px;
    border-radius: 6px;
}

.page-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin: 0 10px;
}

/* Pagination button styles */
#firstBtn, #prevBtn, #nextBtn, #lastBtn, .page-button {
    background: var(--accent-color);
    color: white;
}

#firstBtn:hover, #prevBtn:hover, #nextBtn:hover, #lastBtn:hover, .page-button:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

#firstBtn:disabled, #prevBtn:disabled, #nextBtn:disabled, #lastBtn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none !important;
}

.page-button.active {
    background: var(--primary-color);
    transform: none;
}

/* Clear cache button styling */
.cache-controls button {
    background: var(--error-color);
    color: white;
    padding: 10px 15px;
    margin-top: 15px;
}

.cache-controls button:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(3px);
}

.modal-content {
    background-color: white;
    margin: 15% auto;
    padding: 25px;
    border-radius: 10px;
    width: 450px;
    max-width: 90%;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    position: relative;
    animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-options {
    display: flex;
    justify-content: space-around;
    margin: 25px 0 15px;
    gap: 15px;
}

.modal-options button {
    padding: 12px 20px;
    flex: 1;
}

.close-modal {
    color: var(--dark-gray);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.model-info {
    margin-top: 25px;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
    margin-top: 15px;
}

.model-card {
    background: #ffffff;
    border-left: 5px solid var(--secondary-color);
    border-radius: 8px;
    padding: 18px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.25s ease;
}

.model-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.model-card h4 {
    margin: 0 0 10px 0;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
}

.model-card h4 i {
    color: var(--accent-color);
}

.model-card p {
    margin: 0;
    color: #555;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Mobile */
@media (max-width: 768px) {
    .model-grid {
        grid-template-columns: 1fr;
    }
}


.close-modal:hover {
    color: var(--primary-color);
}

/* Table sorting styles */
.sortable {
    cursor: pointer;
    position: relative;
    transition: background 0.2s;
    padding-right: 25px !important;
}

.sortable:hover {
    background-color: rgba(52, 152, 219, 0.1) !important;
}

.sort-indicator {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
}

/* Autocomplete styles */
.autocomplete {
    position: relative;
    display: inline-block;
    width: 100%;
}

.autocomplete-items {
    position: absolute;
    border: 1px solid #d4d4d4;
    border-bottom: none;
    border-top: none;
    z-index: 1000;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 250px;
    overflow-y: auto;
    border-radius: 0 0 6px 6px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.autocomplete-items div {
    padding: 12px;
    cursor: pointer;
    background-color: white;
    border-bottom: 1px solid #eee;
    transition: background 0.2s;
}

.autocomplete-items div:hover {
    background-color: #f5f5f5;
}

.autocomplete-active {
    background-color: var(--accent-color) !important;
    color: white;
}

#results {
    margin-top: 30px;
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.no-results {
    color: var(--error-color);
    font-style: italic;
    padding: 30px;
    text-align: center;
    font-size: 1.1rem;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.results-table th, .results-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.results-table th {
    background-color: var(--accent-color);
    color: white;
    position: sticky;
    top: 0;
    font-weight: 600;
}

.results-table tr:nth-child(even) {
    background-color: var(--light-gray);
}

.results-table tr:hover {
    background-color: #e6f7ff;
}

/* Expression info styles */
.expression-info {
    margin-top: 8px;
    font-size: 0.9em;
    color: var(--dark-gray);
    border-top: 1px dashed #ddd;
    padding-top: 8px;
}

.expression-row {
    display: flex;
    align-items: baseline;
    margin-bottom: 4px;
}

.expression-label {
    font-weight: 600;
    margin-right: 8px;
    min-width: 80px;
}

.expression-value {
    margin-right: 12px;
    font-weight: 500;
}

.expression-values {
    font-family: monospace;
}

.loading {
    display: none;
    text-align: center;
    margin: 30px 0;
    color: var(--accent-color);
    font-size: 1.1rem;
}

.loading i {
    margin-right: 10px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.status {
    margin-top: 15px;
    font-size: 15px;
    color: var(--dark-gray);
    padding: 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid var(--accent-color);
}

.controls-container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 25px;
    gap: 15px;
}

/* Search mode toggle */
.search-toggle {
    position: absolute;
    top: 25px;
    right: 25px;
}

.search-toggle button {
    background: #9b59b6;
    padding: 10px 15px;
    font-size: 14px;
    border-radius: 6px;
}

.search-toggle button:hover {
    background: #8e44ad;
    transform: translateY(-1px);
}

/* Gene pair search form */
.gene-pair-form {
    display: none;
}

.pair-example {
    font-size: 14px;
    color: var(--dark-gray);
    margin-top: 8px;
    font-style: italic;
}

/* Info boxes */
.info-box {
    background: #f8f9fa;
    border-left: 4px solid var(--accent-color);
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 6px 6px 0;
}

.info-box-title {
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 10px;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px 0;
    color: var(--dark-gray);
    font-size: 14px;
    border-top: 1px solid #eee;
}

/* Mobile-specific styles */
@media (max-width: 767px) {
    .logo-main {
        font-size: 2.5rem;
    }
    
    .logo-tagline {
        font-size: 1rem;
    }
    
    .search-container {
        padding: 20px;
    }
    
    .search-toggle {
        position: static;
        margin-bottom: 15px;
        display: flex;
        justify-content: flex-end;
    }
    
    .controls-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    #searchBtn, #downloadBtn {
        width: 100%;
    }
    
    .pagination-nav button {
        padding: 12px;
        min-width: 40px;
    }
    
    .results-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .modal-content {
        width: 90%;
        margin: 30% auto;
    }
    
    .modal-options {
        flex-direction: column;
    }
    
    /* Adjust expression info for mobile */
    .expression-row {
        flex-direction: column;
    }
    
    .expression-label {
        margin-bottom: 4px;
    }
}

@media (max-width: 600px) {
    .stats-box {
        gap: 15px;
    }
    .stat-item {
        padding: 15px;
        min-width: 140px;
    }
    .stat-number {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .model-grid {
        grid-template-columns: 1fr;
    }
}

/* Desktop styles */
@media (min-width: 768px) {
    .pagination-controls {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .pagination-size {
        width: auto;
        margin-bottom: 0;
        justify-content: flex-start;
    }
    
    .pagination-nav {
        width: auto;
        justify-content: flex-end;
    }
}
/* ── SL / NSL badges (pair search) ─────────────────────────────────────────── */
.label-sl {
    display: inline-block;
    background: #27ae60;
    color: white;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.04em;
}

.label-nsl {
    display: inline-block;
    background: #e74c3c;
    color: white;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.04em;
}

/* ── Pair search note ────────────────────────────────────────────────────────── */
.pair-note {
    background: #f0f7ff;
    border-left: 4px solid var(--accent-color);
    padding: 10px 15px;
    margin-bottom: 15px;
    border-radius: 0 6px 6px 0;
    font-size: 0.92rem;
    color: var(--primary-color);
}

.pair-note i {
    color: var(--accent-color);
    margin-right: 8px;
}

/* ── Pair table horizontal scroll on mobile ─────────────────────────────────── */
.pair-table th, .pair-table td {
    white-space: nowrap;
    text-align: center;
}

.pair-table th:first-child,
.pair-table td:first-child,
.pair-table th:nth-child(2),
.pair-table td:nth-child(2) {
    text-align: left;
}