:root {
    --bg-color: #F5F5F5;
    --panel-color: #E0E0E0;
    --text-color: #222222;
    --primary-color: #4A90E2;
    --secondary-color: #FF9500;
    --border-color: #333333;
    --input-bg: #f9f9f9;
}

.colorblind-mode {
    --primary-color: #000000;
    --secondary-color: #666666;
}

.clac360-carbon-calculator {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    line-height: 1.5;
}

.clac360-carbon-calculator .container {
    max-width: 1200px;
    margin: 0 auto;
}

.clac360-carbon-calculator .panel {
    background-color: var(--panel-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.clac360-carbon-calculator .input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.clac360-carbon-calculator .input-header-text {
    font-size: 18px;
    font-weight: bold;
}

.clac360-carbon-calculator .colorblind-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
}

.clac360-carbon-calculator .toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.clac360-carbon-calculator .toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.clac360-carbon-calculator .toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
    border: 1px solid var(--border-color);
}

.clac360-carbon-calculator .toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

.clac360-carbon-calculator input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.clac360-carbon-calculator input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

.clac360-carbon-calculator .toggle-label {
    font-size: 14px;
}

.clac360-carbon-calculator .input-group {
    margin-bottom: 15px;
}

.clac360-carbon-calculator label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.clac360-carbon-calculator input, 
.clac360-carbon-calculator select, 
.clac360-carbon-calculator textarea {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--input-bg);
    font-size: 14px;
    box-sizing: border-box;
}

.clac360-carbon-calculator input:focus, 
.clac360-carbon-calculator select:focus, 
.clac360-carbon-calculator textarea:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 1px;
}

.clac360-carbon-calculator .unit-selector {
    display: flex;
    gap: 10px;
    margin-top: 5px;
}

.clac360-carbon-calculator .unit-option {
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background-color: var(--input-bg);
}

.clac360-carbon-calculator .unit-option.active {
    background-color: var(--primary-color);
    color: white;
}

.clac360-carbon-calculator .btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s;
    border: 2px solid var(--border-color);
}

.clac360-carbon-calculator .btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.clac360-carbon-calculator .btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.clac360-carbon-calculator .btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.clac360-carbon-calculator .btn:active {
    transform: translateY(0);
}

.clac360-carbon-calculator .btn:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.clac360-carbon-calculator .section-title {
    font-size: 20px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.clac360-carbon-calculator .tabs {
    display: flex;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.clac360-carbon-calculator .tab {
    padding: 10px 20px;
    cursor: pointer;
    border: 1px solid transparent;
    border-bottom: none;
    margin-right: 5px;
    border-radius: 4px 4px 0 0;
    background-color: var(--panel-color);
}

.clac360-carbon-calculator .tab.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--border-color);
}

.clac360-carbon-calculator .tab-content {
    display: none;
}

.clac360-carbon-calculator .tab-content.active {
    display: block;
}

.clac360-carbon-calculator .results-section {
    margin-top: 40px;
}

.clac360-carbon-calculator .chart-container {
    margin: 20px 0;
    height: 300px;
    position: relative;
}

.clac360-carbon-calculator .results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.clac360-carbon-calculator .result-card {
    background-color: white;
    border-radius: 8px;
    padding: 15px;
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.clac360-carbon-calculator .result-value {
    font-size: 24px;
    font-weight: bold;
    margin: 10px 0;
}

.clac360-carbon-calculator .result-label {
    font-size: 14px;
    color: #666;
}

.clac360-carbon-calculator .trademark {
    position: fixed;
    bottom: 10px;
    right: 10px;
    font-size: 12px;
    color: var(--text-color);
}

.clac360-carbon-calculator .csv-section {
    margin-top: 20px;
}

.clac360-carbon-calculator .step-calculation {
    background-color: white;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    border: 2px solid var(--border-color);
}

.clac360-carbon-calculator .step-title {
    font-weight: bold;
    margin-bottom: 10px;
}

.clac360-carbon-calculator .step-formula {
    font-family: monospace;
    background-color: #f0f0f0;
    padding: 10px;
    border-radius: 4px;
    margin: 10px 0;
    border: 1px solid #ddd;
}

.clac360-carbon-calculator .step-result {
    margin-top: 10px;
    font-weight: bold;
}

.clac360-carbon-calculator .error-message {
    color: #d32f2f;
    background-color: #ffebee;
    padding: 10px;
    border-radius: 4px;
    margin: 10px 0;
    border: 1px solid #d32f2f;
}

@media (max-width: 768px) {
    .clac360-carbon-calculator .results-grid {
        grid-template-columns: 1fr;
    }
    
    .clac360-carbon-calculator .tabs {
        flex-wrap: wrap;
    }
    
    .clac360-carbon-calculator .tab {
        flex: 1;
        min-width: 120px;
        text-align: center;
    }
}

.clac360-carbon-calculator .colorblind-shape {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-right: 5px;
    border: 1px solid var(--border-color);
}

.clac360-carbon-calculator .shape-circle {
    border-radius: 50%;
}

.clac360-carbon-calculator .shape-square {
    border-radius: 0;
}

.clac360-carbon-calculator .shape-triangle {
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 12px solid var(--border-color);
    background-color: transparent;
}