/* Concrete Mix Design Calculator CSS - Preserved from original tool */
.clac360-concrete-mix-calculator-container {
    --bg-color: #F5F5F5;
    --panel-color: #E0E0E0;
    --text-color: #222222;
    --primary-accent: #4A90E2;
    --secondary-accent: #FF9500;
    --input-bg: #f9f9f9;
    --input-border: #333333;
    --error-color: #d32f2f;
    --success-color: #388e3c;
    --warning-color: #f57c00;
    --border-radius: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0 auto;
    max-width: 1400px;
    padding: var(--spacing-md);
    width: 100%;
}

.clac360-concrete-mix-calculator-container * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.clac360-calculator-wrapper {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    line-height: 1.6;
    min-height: 100vh;
}

.clac360-container {
    display: grid;
    flex: 1;
    gap: var(--spacing-xl);
    grid-template-columns: 1fr 1fr;
}

@media (max-width: 1024px) {
    .clac360-container {
        grid-template-columns: 1fr;
    }
}

.clac360-panel {
    background-color: var(--panel-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-lg);
}

.clac360-input-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.clac360-input-header {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.clac360-input-header h2 {
    margin: 0;
}

.clac360-colorblind-toggle {
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    white-space: nowrap;
}

.clac360-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.clac360-input-row {
    align-items: center;
    display: grid;
    gap: var(--spacing-sm);
    grid-template-columns: 1fr 2fr 1fr;
}

@media (max-width: 768px) {
    .clac360-input-row {
        gap: var(--spacing-xs);
        grid-template-columns: 1fr;
    }
    
    .clac360-input-header {
        align-items: flex-start;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

.clac360-input-row label {
    color: var(--text-color);
    font-weight: 600;
}

.clac360-input-hint {
    color: #666;
    font-size: 0.85em;
    font-style: italic;
}

.clac360-unit-dropdown-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.clac360-unit-dropdown {
    background-color: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: var(--border-radius);
    color: var(--text-color);
    cursor: pointer;
    font-size: 14px;
    height: 44px;
    min-width: 80px;
    padding: 0 var(--spacing-sm);
    transition: all 0.2s;
    width: 100%;
}

.clac360-unit-dropdown:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
    outline: none;
}

.clac360-concrete-mix-calculator-container input,
.clac360-concrete-mix-calculator-container select {
    background-color: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-size: 16px;
    height: 44px;
    padding: 0 var(--spacing-sm);
    transition: all 0.2s;
}

.clac360-concrete-mix-calculator-container input:focus,
.clac360-concrete-mix-calculator-container select:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
    outline: none;
}

.clac360-primary-input {
    border-width: 2px;
    font-weight: 600;
}

.clac360-secondary-input {
    border-width: 1px;
    opacity: 0.9;
}

.clac360-button-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.clac360-concrete-mix-calculator-container button {
    align-items: center;
    background-color: var(--primary-accent);
    border: none;
    border-radius: var(--border-radius);
    color: white;
    cursor: pointer;
    display: flex;
    font-size: 16px;
    font-weight: 600;
    gap: var(--spacing-sm);
    height: 48px;
    justify-content: center;
    min-width: 140px;
    padding: 0 var(--spacing-lg);
    transition: all 0.2s;
}

.clac360-btn-calculate {
    background-color: var(--primary-accent);
}

.clac360-btn-calculate:hover {
    background-color: #3a7bc8;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.clac360-btn-reset {
    background-color: var(--secondary-accent);
}

.clac360-btn-reset:hover {
    background-color: #e68900;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.clac360-btn-export {
    background-color: var(--text-color);
}

.clac360-btn-export:hover {
    background-color: #444;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.clac360-toggle-switch {
    height: 30px;
    position: relative;
    width: 60px;
}

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

.clac360-toggle-slider {
    background-color: #ccc;
    border-radius: 34px;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
}

.clac360-toggle-slider:before {
    background-color: white;
    border-radius: 50%;
    bottom: 4px;
    content: "";
    height: 22px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 22px;
}

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

input:checked + .clac360-toggle-slider:before {
    transform: translateX(30px);
}

.clac360-result-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.clac360-results-container {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    max-height: none;
    overflow-y: visible;
    padding: var(--spacing-lg);
}

.clac360-result-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-bottom: var(--spacing-lg);
}

.clac360-result-item {
    background-color: var(--bg-color);
    border-left: 4px solid var(--primary-accent);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
}

.clac360-result-value {
    color: var(--text-color);
    font-size: 1.5em;
    font-weight: 700;
    margin-top: var(--spacing-xs);
}

.clac360-result-unit {
    color: #666;
    font-size: 0.9em;
    margin-left: var(--spacing-xs);
}

.clac360-calculation-steps {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    line-height: 1.8;
    overflow-y: auto;
    padding: var(--spacing-md);
    white-space: pre-wrap;
}

.clac360-step {
    border-bottom: 1px solid #eee;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.clac360-dynamic-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.clac360-analysis-box,
.clac360-recommendation-box,
.clac360-comment-box {
    border-left: 4px solid;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
}

.clac360-analysis-box {
    background-color: #e3f2fd;
    border-left-color: var(--primary-accent);
}

.clac360-recommendation-box {
    background-color: #f3e5f5;
    border-left-color: #9c27b0;
}

.clac360-comment-box {
    background-color: #e8f5e8;
    border-left-color: var(--success-color);
}

.clac360-svg-container {
    align-items: center;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
}

.clac360-visualization-title {
    color: var(--text-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.clac360-trademark {
    bottom: var(--spacing-md);
    color: #666;
    font-size: 0.8em;
    opacity: 0.7;
    position: fixed;
    right: var(--spacing-md);
    z-index: 1000;
}

.clac360-error-message {
    background-color: #ffebee;
    border-left: 4px solid var(--error-color);
    border-radius: var(--border-radius);
    color: var(--error-color);
    display: none;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
}

.clac360-error-message.show {
    display: block;
}

.clac360-warning-message {
    background-color: #fff3e0;
    border-left: 4px solid var(--warning-color);
    border-radius: var(--border-radius);
    color: var(--warning-color);
    display: none;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
}

.clac360-warning-message.show {
    display: block;
}

/* Colorblind mode adaptations */
.clac360-colorblind-mode .clac360-unit-dropdown {
    border-style: dashed;
}

.clac360-colorblind-mode button {
    overflow: hidden;
    position: relative;
}

.clac360-colorblind-mode .clac360-btn-calculate::after {
    content: "=";
    font-weight: bold;
    position: absolute;
    right: 10px;
}

.clac360-colorblind-mode .clac360-btn-reset::after {
    content: "↺";
    position: absolute;
    right: 10px;
}

.clac360-colorblind-mode .clac360-btn-export::after {
    content: "↓";
    position: absolute;
    right: 10px;
}

.clac360-colorblind-mode input,
.clac360-colorblind-mode select {
    border-style: dashed;
}

.clac360-colorblind-mode .clac360-result-item {
    border-style: double;
}

/* Focus styles for accessibility */
.clac360-concrete-mix-calculator-container button:focus-visible,
.clac360-concrete-mix-calculator-container input:focus-visible,
.clac360-concrete-mix-calculator-container select:focus-visible {
    outline: 3px solid var(--primary-accent);
    outline-offset: 2px;
}

/* Mobile optimizations */
@media (max-width: 480px) {
    .clac360-concrete-mix-calculator-container {
        padding: var(--spacing-sm);
    }
    
    .clac360-panel {
        padding: var(--spacing-md);
    }
    
    .clac360-concrete-mix-calculator-container button {
        font-size: 14px;
        height: 44px;
        min-width: 120px;
    }
    
    .clac360-button-group {
        flex-direction: column;
    }
    
    .clac360-trademark {
        position: static;
        margin-top: var(--spacing-lg);
        text-align: center;
    }
    
    .clac360-input-row {
        grid-template-columns: 1fr;
    }
    
    .clac360-unit-dropdown {
        width: 100%;
        max-width: 100%;
    }
}

/* Ensure input fields have ample height and visible text */
.clac360-concrete-mix-calculator-container input[type="number"],
.clac360-concrete-mix-calculator-container select {
    height: 44px;
    line-height: 44px;
    padding: 0 12px;
    font-size: 16px;
}

/* Ensure dropdowns have ample height for visible text */
.clac360-unit-dropdown,
.clac360-concrete-mix-calculator-container select {
    height: 44px;
    line-height: 44px;
    padding: 0 12px;
    font-size: 14px;
}

/* Prevent overlapping input fields */
.clac360-input-row {
    margin-bottom: var(--spacing-sm);
}

/* Ensure ample distance between last input field and buttons */
.clac360-button-group {
    margin-top: var(--spacing-xl);
}