:root {
    --primary-color: #E6007A;
    --secondary-color: #1E1E1E;
    --background-color: #F5F5F5;
    --card-background: #FFFFFF;
    --text-primary: #1E1E1E;
    --text-secondary: #666666;
    --border-color: #E0E0E0;
    --success-color: #00C853;
    --chart-blue: #2196F3;
    --chart-green: #4CAF50;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

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

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 2.5em;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1em;
}

.model-selection {
    background: var(--card-background);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    text-align: center;
}

.model-radio-group {
    display: inline-flex;
    gap: 40px;
    align-items: center;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.2s;
}

.radio-label:hover {
    color: var(--primary-color);
}

.radio-label input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.model-params {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    width: 100%;
}

.parameters {
    background: var(--card-background);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.parameter-group {
    display: flex;
    flex-direction: column;
}

.parameter-group label {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.parameter-group label small {
    display: block;
    font-weight: 400;
    color: var(--text-secondary);
    font-size: 0.85em;
    margin-top: 4px;
}

input[type="range"] {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 5px;
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    cursor: pointer;
    border-radius: 50%;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    cursor: pointer;
    border-radius: 50%;
    border: none;
}

.reset-btn {
    padding: 10px 20px;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
    align-self: center;
    margin-top: 10px;
}

.reset-btn:hover {
    background: #333333;
}

.summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.summary-card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.summary-card h3 {
    color: var(--text-secondary);
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.summary-card p {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text-primary);
}

.summary-card p span {
    color: var(--primary-color);
}

.chart-section {
    background: var(--card-background);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.chart-controls {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.chart-controls label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.chart-container {
    position: relative;
    height: 400px;
}

.data-section {
    background: var(--card-background);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.data-section h2 {
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.table-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}

.export-btn {
    padding: 8px 16px;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.export-btn:hover {
    background: #00A043;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
}

thead {
    background: var(--background-color);
    position: sticky;
    top: 0;
}

th {
    padding: 12px 8px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: var(--background-color);
}

@media (max-width: 1024px) {
    .parameters {
        grid-template-columns: 1fr;
    }
    
    .summary {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8em;
    }
    
    .container {
        padding: 15px;
    }
    
    .parameters,
    .summary-card,
    .chart-section,
    .data-section {
        padding: 20px;
    }
    
    .chart-container {
        height: 300px;
    }
    
    table {
        font-size: 0.8em;
    }
    
    th, td {
        padding: 8px 4px;
    }
}

/* Number input field styles */
.input-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}

.number-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 1.1em;
    font-weight: 500;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-background);
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
    -moz-appearance: textfield; /* Remove spinner in Firefox */
}

/* Remove spinners in Chrome, Safari, Edge */
.number-input::-webkit-outer-spin-button,
.number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.number-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(230, 0, 122, 0.1);
}

.number-input:invalid {
    border-color: #F44336;
}

.input-unit {
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

.input-error {
    color: #F44336;
    font-size: 0.9em;
    margin-top: 8px;
    font-weight: 500;
}