/* EpiPred - Custom Styles */

/* Global Styles */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --epitope-b-color: #ff6b6b;
    --epitope-t-color: #4ecdc4;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Navigation */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-brand img {
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Logo Styles */
.logo-header {
    max-height: 80px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-header:hover {
    transform: scale(1.02);
}

.logo-footer {
    max-height: 40px;
    width: auto;
    filter: brightness(0.9);
    transition: filter 0.3s ease;
}

.logo-footer:hover {
    filter: brightness(1.1);
}

/* Header Section */
.bg-light {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%) !important;
}

.display-6 {
    font-weight: 600;
    color: var(--dark-color);
}

.lead {
    font-size: 1.1rem;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1) !important;
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    font-weight: 600;
    border-bottom: none;
}

.card-body {
    padding: 1.5rem;
}

/* Form Elements */
.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

.form-text {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #1e7e34 0%, #155724 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

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

.btn-outline-secondary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-1px);
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: none;
    font-weight: 500;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

/* Sequence Display */
.sequence-display {
    font-family: 'Courier New', 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-all;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 2px solid #e9ecef;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.epitope-b {
    background-color: var(--epitope-b-color);
    color: white;
    padding: 2px 3px;
    border-radius: 3px;
    font-weight: bold;
    margin: 0 1px;
}

.epitope-t {
    background-color: var(--epitope-t-color);
    color: white;
    padding: 2px 3px;
    border-radius: 3px;
    font-weight: bold;
    margin: 0 1px;
}

.non-epitope {
    color: var(--secondary-color);
    opacity: 0.7;
}

/* Confidence Bars */
.confidence-bar {
    height: 20px;
    background: linear-gradient(90deg, #dc3545 0%, #ffc107 50%, #28a745 100%);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.confidence-indicator {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 10px;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Tables */
.table {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.table thead th {
    background-color: var(--light-color);
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    color: var(--dark-color);
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.05);
}

/* Threshold Slider */
.form-range {
    height: 8px;
    background: linear-gradient(90deg, #dc3545 0%, #ffc107 50%, #28a745 100%);
    border-radius: 4px;
    outline: none;
}

.form-range::-webkit-slider-thumb {
    width: 20px;
    height: 20px;
    background: #007bff;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: #007bff;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

/* Badges */
.badge {
    font-size: 0.8rem;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
}

/* Modal */
.modal-content {
    border-radius: 10px;
    border: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    border-bottom: 2px solid #e9ecef;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px 10px 0 0;
}

.modal-title {
    font-weight: 600;
    color: var(--dark-color);
}

/* Code blocks */
pre {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

code {
    color: #e83e8c;
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #343a40 0%, #212529 100%) !important;
}

footer h5 {
    color: #fff;
    font-weight: 600;
}

footer p {
    color: #adb5bd;
}

/* Responsive Design */
@media (max-width: 768px) {
    .display-6 {
        font-size: 1.5rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .sequence-display {
        font-size: 12px;
        padding: 15px;
    }
    
    .btn-lg {
        padding: 0.6rem 1.5rem;
        font-size: 1rem;
    }
    
    .logo-header {
        max-height: 60px;
    }
    
    .navbar-brand img {
        height: 25px;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .sequence-display {
        font-size: 11px;
        padding: 10px;
        max-height: 200px;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .logo-header {
        max-height: 50px;
    }
    
    .navbar-brand img {
        height: 20px;
    }
    
    .logo-footer {
        max-height: 30px;
    }
}

/* Loading Animation */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Utility Classes */
.shadow-sm {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08) !important;
}

.text-monospace {
    font-family: 'Courier New', 'Monaco', 'Menlo', monospace !important;
}

/* Hover Effects */
.epitope-card {
    transition: all 0.3s ease;
}

.epitope-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

/* Custom Scrollbar */
.sequence-display::-webkit-scrollbar {
    width: 8px;
}

.sequence-display::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.sequence-display::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.sequence-display::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}