:root {
    /* Normal Mode Colors - Fixed */
    --bg-primary: #F5F5F5;
    --panel-bg: #E0E0E0;
    --text-primary: #222222;
    --accent-primary: #4A90E2;
    --accent-secondary: #FF9500;
    --input-bg: #f9f9f9;
    --border-color: #333333;
    --error-color: #d32f2f;
    --success-color: #388e3c;
    
    /* Colorblind Mode Overrides - Background remains fixed */
    --cb-text-primary: #000000;
    --cb-panel-bg: #d0d0d0;
    --cb-border-color: #000000;
    --cb-accent-primary: #0066cc;
    --cb-accent-secondary: #cc6600;
}

.uwc-calculator-container * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.uwc-calculator-container {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
    transition: all 0.3s ease;
}

.uwc-calculator-container.colorblind {
    --text-primary: var(--cb-text-primary);
    --panel-bg: var(--cb-panel-bg);
    --border-color: var(--cb-border-color);
    --accent-primary: var(--cb-accent-primary);
    --accent-secondary: var(--cb-accent-secondary);
}

.uwc-calculator-container .container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 20px;
}

@media (max-width: 768px) {
    .uwc-calculator-container .container {
        grid-template-columns: 1fr;
        padding: 10px;
    }
}

.uwc-calculator-container .panel {
    background-color: var(--panel-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 2px solid var(--border-color);
}

.uwc-calculator-container .input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.uwc-calculator-container .mode-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

.uwc-calculator-container .mode-option {
    padding: 15px;
    background-color: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    font-weight: 600;
    transition: all 0.2s;
    position: relative;
}

.uwc-calculator-container .mode-option.selected {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.uwc-calculator-container.colorblind .mode-option.selected {
    background-color: var(--cb-accent-primary);
    border-color: var(--cb-accent-primary);
}

.uwc-calculator-container .mode-option.selected::after {
    content: '✓';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.uwc-calculator-container .form-grid {
    display: grid;
    gap: 20px;
}

.uwc-calculator-container .form-row {
    display: grid;
    gap: 8px;
}

.uwc-calculator-container .form-row label {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.uwc-calculator-container .hint {
    font-size: 0.85em;
    color: #666;
    font-weight: normal;
    font-style: italic;
}

.uwc-calculator-container.colorblind .hint {
    color: #444;
}

.uwc-calculator-container input, 
.uwc-calculator-container select {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-primary);
    transition: border-color 0.2s;
    height: 52px;
    line-height: normal;
}

.uwc-calculator-container input:focus, 
.uwc-calculator-container select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

.uwc-calculator-container.colorblind input:focus, 
.uwc-calculator-container.colorblind select:focus {
    border-color: var(--cb-accent-primary);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.2);
}

.uwc-calculator-container .button-group {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 15px;
    margin-top: 30px;
}

@media (max-width: 480px) {
    .uwc-calculator-container .button-group {
        grid-template-columns: 1fr;
    }
}

.uwc-calculator-container button {
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.uwc-calculator-container button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.uwc-calculator-container .btn-calculate {
    background-color: var(--accent-primary);
    color: white;
}

.uwc-calculator-container.colorblind .btn-calculate {
    background-color: var(--cb-accent-primary);
}

.uwc-calculator-container .btn-reset {
    background-color: var(--accent-secondary);
    color: white;
}

.uwc-calculator-container.colorblind .btn-reset {
    background-color: var(--cb-accent-secondary);
}

.uwc-calculator-container .btn-export {
    background-color: var(--panel-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.uwc-calculator-container .btn-calculate:hover:not(:disabled), 
.uwc-calculator-container .btn-reset:hover:not(:disabled), 
.uwc-calculator-container .btn-export:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.uwc-calculator-container .results-container {
    margin-top: 20px;
}

.uwc-calculator-container .result-item {
    background-color: var(--input-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 4px solid var(--accent-primary);
}

.uwc-calculator-container.colorblind .result-item {
    border-left-color: var(--cb-accent-primary);
}

.uwc-calculator-container .result-label {
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.uwc-calculator-container .result-value {
    font-size: 1.2em;
    font-weight: 700;
    color: var(--accent-primary);
}

.uwc-calculator-container.colorblind .result-value {
    color: var(--cb-accent-primary);
}

.uwc-calculator-container .calculation-steps {
    background-color: var(--input-bg);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border: 1px solid var(--border-color);
}

.uwc-calculator-container .step {
    margin-bottom: 10px;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 4px;
}

.uwc-calculator-container .dynamic-comment {
    background-color: var(--input-bg);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-top: 3px solid var(--accent-secondary);
}

.uwc-calculator-container.colorblind .dynamic-comment {
    border-top-color: var(--cb-accent-secondary);
}

.uwc-calculator-container .comment-title {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--accent-secondary);
}

.uwc-calculator-container.colorblind .comment-title {
    color: var(--cb-accent-secondary);
}

.uwc-calculator-container .svg-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    margin: 20px 0;
    overflow: hidden;
}

.uwc-calculator-container .error-message {
    background-color: #ffebee;
    color: var(--error-color);
    padding: 15px;
    border-radius: 6px;
    margin: 15px 0;
    border: 2px solid var(--error-color);
    font-weight: 600;
}

.uwc-calculator-container.colorblind .error-message {
    background-color: #ffe6e6;
    border-color: #cc0000;
    color: #cc0000;
}

.uwc-calculator-container .trademark {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 12px;
    color: #666;
    opacity: 0.8;
    z-index: 1000;
}

.uwc-calculator-container.colorblind .trademark {
    color: #444;
}

.uwc-calculator-container .toggle-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.uwc-calculator-container .toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.uwc-calculator-container .toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.uwc-calculator-container .toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
    border: 2px solid var(--border-color);
}

.uwc-calculator-container .toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.uwc-calculator-container input:checked + .toggle-slider {
    background-color: var(--accent-primary);
}

.uwc-calculator-container.colorblind input:checked + .toggle-slider {
    background-color: var(--cb-accent-primary);
}

.uwc-calculator-container input:checked + .toggle-slider:before {
    transform: translateX(28px);
}

.uwc-calculator-container .material-group {
    display: none;
}

.uwc-calculator-container .material-group.active {
    display: grid;
    gap: 20px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.uwc-calculator-container .convert-input-container {
    display: none;
}

.uwc-calculator-container .convert-input-container.active {
    display: block;
}

.uwc-calculator-container .state-required {
    font-size: 0.8em;
    color: #666;
    font-style: italic;
}