:root {
    --amd-blue: #00C2DE;
    --amd-gray: #636466;
    --amd-orange: #E15310;
    --amd-black: #000000;
    --amd-white: #FFFFFF;
    --primary-color: #00C2DE;
    --secondary-color: #004e89;
    --bg-dark: #1a1a1a;
    --bg-light: #2d2d2d;
    --text-light: #e0e0e0;
    --text-dark: #1a1a1a;
    --border-color: #404040;
}

* {
    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(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
    border-bottom: 2px solid var(--primary-color);
}

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

header p {
    color: var(--text-light);
    font-size: 1.1em;
}

.upload-section {
    background-color: var(--bg-light);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

.upload-section h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.auth-section {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 15px;
}

.auth-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.auth-label {
    color: var(--text-light);
    font-weight: 600;
}

#api-key {
    padding: 10px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-light);
    flex: 1;
    min-width: 220px;
}

#auth-status {
    margin-top: 8px;
    padding: 8px 10px;
    border-radius: 4px;
    display: none;
}

#auth-status.success {
    background-color: #2d5016;
    color: #90ee90;
    display: block;
}

#auth-status.error {
    background-color: #5c1a1a;
    color: #ff6666;
    display: block;
}

.btn-secondary {
    padding: 10px 16px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #0061a6;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 97, 166, 0.3);
}

.upload-form {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

#csv-file {
    padding: 10px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-light);
    flex: 1;
    min-width: 250px;
}

#upload-status {
    flex: 1;
    min-width: 100%;
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
    display: none;
    white-space: pre-line;
}

#upload-status.success {
    background-color: #2d5016;
    color: #90ee90;
    display: block;
}

#upload-status.error {
    background-color: #5c1a1a;
    color: #ff6666;
    display: block;
}

.controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

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

.control-group label {
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9em;
}

.filter-dropdown {
    position: relative;
}

.filter-toggle {
    width: 100%;
    text-align: left;
    padding: 10px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-light);
    font-size: 0.95em;
    cursor: pointer;
}

.filter-toggle:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 194, 222, 0.2);
}

.filter-menu {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 6px);
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px;
    max-height: 220px;
    overflow-y: auto;
    z-index: 10;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.filter-dropdown.open .filter-menu {
    display: block;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 4px;
    color: var(--text-light);
    font-size: 0.9em;
}

.filter-option input {
    accent-color: var(--primary-color);
}

.btn-primary {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    align-self: flex-end;
}

.btn-primary:hover {
    background-color: #00a8c4;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 194, 222, 0.3);
}

.plots-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.plot-section {
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.plot-section h2 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 1.2em;
}

.plot-description {
    color: #999;
    font-size: 0.9em;
    margin-bottom: 15px;
}

.plot {
    width: 100%;
    min-height: 500px;
    background-color: var(--bg-dark);
    border-radius: 4px;
}

.metrics-section {
    background-color: var(--bg-light);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

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

.metrics-group {
    margin-bottom: 20px;
}

.metrics-subtitle {
    color: var(--text-light);
    font-size: 1.05em;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.metric-card {
    background-color: var(--bg-dark);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
}

.metric-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.metric-card p {
    font-size: 1.8em;
    font-weight: bold;
    color: var(--text-light);
    word-break: break-word;
}

.error {
    background-color: #d32f2f;
    color: white;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.success {
    background-color: #388e3c;
    color: white;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.loading {
    text-align: center;
    color: var(--text-light);
    padding: 20px;
}

/* Responsive design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }

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

    .btn-primary {
        align-self: auto;
        width: 100%;
    }

    .upload-form {
        flex-direction: column;
    }

    .auth-row {
        flex-direction: column;
        align-items: stretch;
    }

    #csv-file {
        min-width: 100%;
    }

    .plot {
        min-height: 400px;
    }
}