/* Column Buckling Calculator-clac360 */
/* Preserving original calculator styles exactly */

.clac360-buckling-calculator {
    --background-color: #F5F5F5;
    --panel-color: #E0E0E0;
    --text-color: #222222;
    --primary-accent: #4A90E2;
    --secondary-accent: #FF9500;
    --border-color: #333333;
    --input-bg: #f9f9f9;
    --error-color: #D32F2F;
    --success-color: #388E3C;
    --warning-color: #F57C00;
    --grid-gap: 16px;
    --border-radius: 6px;
    --input-height: 46px; /* Increased for better visibility */
}

.clac360-buckling-calculator * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.clac360-buckling-calculator body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.clac360-buckling-calculator .calculator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
    margin-top: 20px;
}

@media (max-width: 768px) {
    .clac360-buckling-calculator .calculator-container {
        grid-template-columns: 1fr;
    }
}

.clac360-buckling-calculator .panel {
    background-color: var(--panel-color);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.clac360-buckling-calculator .input-container {
    display: flex;
    flex-direction: column;
    gap: 20px; /* Increased gap for better separation */
    margin-bottom: 30px; /* Increased margin */
}

.clac360-buckling-calculator .input-row {
    display: flex;
    flex-direction: column;
}

.clac360-buckling-calculator .input-row label {
    font-weight: 600;
    margin-bottom: 8px; /* Increased for better spacing */
    font-size: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.clac360-buckling-calculator .hint {
    font-weight: normal;
    font-size: 12px;
    color: #666;
    font-style: italic;
}

.clac360-buckling-calculator .input-with-unit {
    display: flex;
    gap: 10px; /* Increased gap */
}

.clac360-buckling-calculator .input-with-unit input {
    flex: 1;
    height: var(--input-height);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px; /* Increased padding */
    font-size: 15px;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: border-color 0.2s;
}

.clac360-buckling-calculator .input-with-unit select {
    width: 110px; /* Slightly wider for better visibility */
    height: var(--input-height);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0 12px; /* Increased padding */
    font-size: 14px;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: border-color 0.2s;
}

.clac360-buckling-calculator .input-with-unit input:focus, 
.clac360-buckling-calculator .input-with-unit select:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

.clac360-buckling-calculator .input-with-unit input.primary {
    border-color: var(--primary-accent);
    background-color: rgba(74, 144, 226, 0.05);
}

.clac360-buckling-calculator .input-with-unit input.secondary {
    border-color: #999;
}

.clac360-buckling-calculator select {
    height: var(--input-height);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px; /* Increased padding */
    font-size: 15px;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: border-color 0.2s;
}

.clac360-buckling-calculator select:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

.clac360-buckling-calculator .button-group {
    display: flex;
    gap: 15px; /* Increased gap */
    margin-top: 30px; /* Increased margin for clear separation */
    flex-wrap: wrap;
}

.clac360-buckling-calculator button {
    height: var(--input-height);
    padding: 0 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 130px; /* Slightly wider */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.clac360-buckling-calculator button.primary-btn:hover {
    background-color: #3a7bc8;
    transform: translateY(-1px);
}

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

.clac360-buckling-calculator button.secondary-btn:hover {
    background-color: #e08500;
    transform: translateY(-1px);
}

.clac360-buckling-calculator button.outline-btn {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-color);
}

.clac360-buckling-calculator button.outline-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.clac360-buckling-calculator .results-section {
    display: none;
}

.clac360-buckling-calculator .results-section.active {
    display: block;
}

.clac360-buckling-calculator .calculation-steps {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
}

.clac360-buckling-calculator .step {
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px dashed #ddd;
}

.clac360-buckling-calculator .step:last-child {
    border-bottom: none;
}

.clac360-buckling-calculator .step-title {
    font-weight: 600;
    color: var(--primary-accent);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.clac360-buckling-calculator .step-content {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    white-space: pre-wrap;
    background-color: #f8f9fa;
    padding: 12px;
    border-radius: 4px;
    border-left: 4px solid var(--primary-accent);
}

.clac360-buckling-calculator .dynamic-comment {
    background-color: rgba(74, 144, 226, 0.1);
    border-left: 4px solid var(--primary-accent);
    padding: 16px;
    margin: 20px 0;
    border-radius: 4px;
}

.clac360-buckling-calculator .dynamic-analysis {
    background-color: rgba(255, 149, 0, 0.1);
    border-left: 4px solid var(--secondary-accent);
    padding: 16px;
    margin: 20px 0;
    border-radius: 4px;
}

.clac360-buckling-calculator .dynamic-recommendation {
    background-color: rgba(56, 142, 60, 0.1);
    border-left: 4px solid var(--success-color);
    padding: 16px;
    margin: 20px 0;
    border-radius: 4px;
}

.clac360-buckling-calculator .panel-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px; /* Increased margin */
}

.clac360-buckling-calculator .panel-title h2 {
    font-size: 20px;
    color: var(--text-color);
}

.clac360-buckling-calculator .mode-toggle {
    display: flex;
    align-items: center;
    gap: 12px; /* Increased gap */
}

.clac360-buckling-calculator .toggle-label {
    font-size: 14px;
    font-weight: 600;
}

.clac360-buckling-calculator .switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 28px;
}

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

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

.clac360-buckling-calculator .slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

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

.clac360-buckling-calculator input:checked + .slider:before {
    transform: translateX(32px);
}

.clac360-buckling-calculator .result-value {
    font-weight: 600;
    color: var(--primary-accent);
    font-size: 18px;
}

.clac360-buckling-calculator .result-unit {
    font-size: 14px;
    color: #666;
    margin-left: 4px;
}

.clac360-buckling-calculator .result-formula {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #666;
    margin-top: 4px;
}

.clac360-buckling-calculator .result-validity {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
}

.clac360-buckling-calculator .valid {
    background-color: rgba(56, 142, 60, 0.2);
    color: var(--success-color);
}

.clac360-buckling-calculator .invalid {
    background-color: rgba(211, 47, 47, 0.2);
    color: var(--error-color);
}

.clac360-buckling-calculator .warning {
    background-color: rgba(245, 124, 0, 0.2);
    color: var(--warning-color);
}

.clac360-buckling-calculator .error-message {
    color: var(--error-color);
    font-weight: 600;
    background-color: rgba(211, 47, 47, 0.1);
    padding: 12px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--error-color);
    margin: 16px 0;
    display: none;
}

.clac360-buckling-calculator .error-message.active {
    display: block;
}

.clac360-buckling-calculator .trade-mark {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 12px;
    color: #999;
    font-style: italic;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 4px 8px;
    border-radius: 4px;
}

/* ADDED: SVG Container Styles - CRITICAL FOR VISUALIZATION */
.clac360-buckling-calculator .svg-container {
    margin: 20px 0;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid #ddd;
    overflow: auto;
    min-height: 450px;
}

.clac360-buckling-calculator .svg-container svg {
    display: block;
    width: 100%;
    height: 400px;
    background-color: white;
}

.clac360-buckling-calculator .formula-selector {
    display: flex;
    gap: 16px;
    margin-bottom: 25px; /* Increased margin */
    flex-wrap: wrap;
}

.clac360-buckling-calculator .formula-option {
    flex: 1;
    min-width: 220px; /* Increased min-width */
}

.clac360-buckling-calculator .formula-option select {
    width: 100%;
    height: 46px; /* Ensure ample height */
    padding: 12px; /* Ensure text visibility */
}

.clac360-buckling-calculator .suggestion-box {
    background-color: rgba(255, 243, 205, 0.3);
    border-left: 4px solid #FFC107;
    padding: 16px;
    margin: 16px 0;
    border-radius: 4px;
}

.clac360-buckling-calculator .suggestion-box h4 {
    color: #856404;
    margin-bottom: 8px;
    font-size: 16px;
}

.clac360-buckling-calculator .suggestion-list {
    margin-left: 20px;
    margin-bottom: 12px;
}

.clac360-buckling-calculator .suggestion-list li {
    margin-bottom: 6px;
    font-size: 14px;
}

.clac360-buckling-calculator .method-suggestion {
    margin-top: 12px;
    font-weight: 600;
    color: #856404;
    padding: 8px;
    background-color: rgba(255, 193, 7, 0.2);
    border-radius: 4px;
    border-left: 3px solid #FFC107;
}

/* Colorblind mode adaptations */
.clac360-buckling-calculator.colorblind-mode .input-with-unit input,
.clac360-buckling-calculator.colorblind-mode .input-with-unit select,
.clac360-buckling-calculator.colorblind-mode select,
.clac360-buckling-calculator.colorblind-mode .panel {
    border-style: solid;
    border-width: 2px;
}

.clac360-buckling-calculator.colorblind-mode button.primary-btn {
    border: 2px solid #000;
    position: relative;
}

.clac360-buckling-calculator.colorblind-mode button.primary-btn::before {
    content: "▶";
    position: absolute;
    left: 10px;
}

.clac360-buckling-calculator.colorblind-mode button.secondary-btn {
    border: 2px dashed #000;
}

.clac360-buckling-calculator.colorblind-mode button.outline-btn {
    border: 2px dotted #000;
}

.clac360-buckling-calculator.colorblind-mode .dynamic-comment {
    border-style: dashed;
}

.clac360-buckling-calculator.colorblind-mode .dynamic-analysis {
    border-style: dotted;
}

.clac360-buckling-calculator.colorblind-mode .dynamic-recommendation {
    border-style: double;
}

.clac360-buckling-calculator.colorblind-mode .step-content {
    border-style: solid;
}

.clac360-buckling-calculator.colorblind-mode .result-validity.valid {
    border: 1px solid #000;
    background-image: repeating-linear-gradient(45deg, transparent, transparent 5px, rgba(0,0,0,0.1) 5px, rgba(0,0,0,0.1) 10px);
}

.clac360-buckling-calculator.colorblind-mode .result-validity.invalid {
    border: 1px solid #000;
    background-image: repeating-linear-gradient(135deg, transparent, transparent 5px, rgba(0,0,0,0.1) 5px, rgba(0,0,0,0.1) 10px);
}

.clac360-buckling-calculator.colorblind-mode .result-validity.warning {
    border: 1px solid #000;
    background-image: repeating-linear-gradient(90deg, transparent, transparent 5px, rgba(0,0,0,0.1) 5px, rgba(0,0,0,0.1) 10px);
}

.clac360-buckling-calculator.colorblind-mode .suggestion-box {
    border-style: dashed;
    border-width: 2px;
}

/* Ensure input fields have clear visibility */
.clac360-buckling-calculator input::placeholder {
    color: #888;
    opacity: 1;
}

/* Ensure no overlapping elements */
.clac360-buckling-calculator .input-row {
    margin-bottom: 5px;
}

.clac360-buckling-calculator .input-with-unit > * {
    min-height: var(--input-height);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .clac360-buckling-calculator .input-with-unit {
        flex-direction: column;
        gap: 8px;
    }
    
    .clac360-buckling-calculator .input-with-unit select {
        width: 100%;
    }
    
    .clac360-buckling-calculator .panel {
        padding: 16px;
    }
    
    .clac360-buckling-calculator .svg-container {
        padding: 10px;
        min-height: 350px;
    }
    
    .clac360-buckling-calculator .svg-container svg {
        height: 300px;
    }
}