/* Neural Network Training Platform - Styles */

:root {
    --primary-color: #4a90e2;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --background-color: #f5f7fa;
    --panel-background: #ffffff;
    --text-color: #333333;
    --border-color: #e1e4e8;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #357abd 100%);
    color: white;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 1.3rem;
    margin-bottom: 3px;
}

.subtitle {
    font-size: 0.75rem;
    opacity: 0.9;
}

/* Panels */
.panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.panel {
    background: var(--panel-background);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.panel h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.help-text {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 5px;
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: normal;
}

.radio-group input[type="radio"] {
    width: auto;
    cursor: pointer;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: #357abd;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #5a6268;
}

/* Status Box */
.status-box {
    margin-top: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

.status-text {
    font-weight: 600;
    margin-bottom: 10px;
}

.progress-container {
    margin-top: 10px;
}

.progress-bar {
    width: 100%;
    height: 24px;
    background-color: #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 5px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, #357abd 100%);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    font-size: 0.875rem;
    color: #6c757d;
}

/* Chart */
.chart-container {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

#loss-chart {
    width: 100%;
    height: auto;
}

/* Metrics */
.metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.metric {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 0.875rem;
    color: #6c757d;
    margin-bottom: 5px;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Testing Grid */
.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    align-items: end;
    margin-bottom: 30px;
}

.output-display {
    background-color: #f8f9fa;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 1.2rem;
    font-weight: 700;
    text-align: center;
    color: var(--primary-color);
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Truth Table */
.truth-table {
    margin-top: 20px;
}

.truth-table h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

th, td {
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
}

tbody tr:hover {
    background-color: #f8f9fa;
}

tbody tr:last-child td {
    border-bottom: none;
}

.error-low {
    background-color: #d4edda;
    color: #155724;
}

.error-high {
    background-color: #f8d7da;
    color: #721c24;
}

/* Architecture Display */
#architecture-display {
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    min-height: 100px;
}

.architecture-layer {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    margin: 5px;
    font-weight: 600;
    font-size: 1.1rem;
}

.architecture-arrow {
    display: inline-block;
    color: var(--text-color);
    font-size: 1.5rem;
    margin: 0 10px;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 40px;
    color: #6c757d;
    border-top: 1px solid var(--border-color);
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 10px;
}

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

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

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

    .button-group {
        flex-direction: column;
    }

    header h1 {
        font-size: 2rem;
    }

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

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.training-active .status-text {
    animation: pulse 2s ease-in-out infinite;
}