/* Fixed Color Scheme - Normal Mode */
:root {
    --background: #F5F5F5;
    --panel: #E0E0E0;
    --text-primary: #222222;
    --accent-primary: #4A90E2;
    --accent-secondary: #FF9500;
    --input-bg: #f9f9f9;
    --border: #333333;
    --success: #228B22;
    --warning: #FF8C00;
    --error: #B22222;
}

/* Colorblind Mode Adaptations */
.colorblind-mode {
    --accent-primary: #000000;
    --accent-secondary: #666666;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.clac360-calculator-container {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Layout */
.calculator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 60px;
}

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

/* Input Panel */
.input-panel {
    background-color: var(--panel);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

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

.panel-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Colorblind Toggle */
.colorblind-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

.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);
}

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

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

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

/* Input Groups */
.input-group {
    margin-bottom: 25px;
}

.input-group.primary {
    background-color: rgba(74, 144, 226, 0.05);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-primary);
}

.input-group.secondary {
    background-color: rgba(255, 149, 0, 0.05);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-secondary);
}

.input-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.input-field {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--border);
    border-radius: 8px;
    background-color: var(--input-bg);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
    height: 48px;
}

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

.unit-selector {
    margin-top: 10px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.unit-option {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.unit-option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.hint {
    display: block;
    margin-top: 5px;
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 25px;
}

.button {
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: min(140px, 100%);
}

@media (max-width: 480px) {
    .button {
        min-width: 100%;
    }
}

.button-primary {
    background-color: var(--accent-primary);
    color: white;
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.button-secondary {
    background-color: var(--accent-secondary);
    color: white;
}

.button-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 149, 0, 0.3);
}

.button-outline {
    background-color: transparent;
    border: 2px solid var(--border);
    color: var(--text-primary);
}

.button-outline:hover {
    background-color: var(--panel);
}

/* CSV Import Section */
.csv-section {
    margin-top: 30px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    border: 2px dashed var(--border);
}

.csv-preview {
    margin-top: 20px;
    max-height: 300px;
    overflow-y: auto;
    display: none;
}

.csv-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.csv-table th,
.csv-table td {
    padding: 10px;
    border: 1px solid var(--border);
    text-align: center;
}

.csv-table th {
    background-color: var(--panel);
    font-weight: 600;
}

/* Results Panel */
.results-panel {
    background-color: var(--panel);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    position: relative;
}

.results-content {
    display: none;
}

.result-item {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-primary);
}

.result-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 10px 0;
}

.result-label {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    display: block;
    margin-bottom: 5px;
}

/* Step-by-Step Calculations */
.calculation-steps {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    margin: 25px 0;
    font-family: 'Courier New', monospace;
    line-height: 1.8;
    border: 1px solid var(--border);
}

.step {
    margin: 10px 0;
    padding-left: 15px;
    border-left: 3px solid transparent;
}

.step.active {
    border-left-color: var(--accent-primary);
    background-color: rgba(74, 144, 226, 0.05);
    padding: 10px 15px;
    border-radius: 4px;
}

/* Analysis and Recommendations */
.analysis-section {
    margin-top: 30px;
}

.analysis-box {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-secondary);
}

.analysis-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Chart Container */
.chart-container {
    height: 40vh;
    min-height: 300px;
    max-height: 500px;
    margin: 30px 0;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    position: relative;
}

@media (max-width: 768px) {
    .chart-container {
        height: 50vh;
    }
}

/* Trademark */
.trademark {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 0.9rem;
    color: var(--text-primary);
    opacity: 0.7;
    z-index: 1000;
}

/* Colorblind Mode Specific Styles */
.colorblind-mode .button-primary,
.colorblind-mode .button-secondary {
    position: relative;
    overflow: hidden;
}

.colorblind-mode .button-primary::after {
    content: "■";
    position: absolute;
    right: 15px;
    opacity: 0.5;
}

.colorblind-mode .button-secondary::after {
    content: "●";
    position: absolute;
    right: 15px;
    opacity: 0.5;
}

.colorblind-mode .result-item {
    border-style: double;
    border-width: 4px;
}

.colorblind-mode .input-field {
    border-style: dashed;
}

/* Validation Styles */
.validation-error {
    color: var(--error);
    font-size: 0.9rem;
    margin-top: 5px;
    display: none;
}

.input-error {
    border-color: var(--error) !important;
}

/* Loading State */
.loading {
    display: none;
    text-align: center;
    padding: 20px;
}

.spinner {
    border: 4px solid var(--panel);
    border-top: 4px solid var(--accent-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Q Display */
.q-display {
    margin-top: 8px;
    font-size: 0.95rem;
    color: #444;
    padding: 8px 12px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 4px;
    border-left: 3px solid var(--accent-secondary);
}

/* Confidence Interval Section */
.confidence-section {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    border: 1px solid var(--border);
}

.confidence-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.confidence-input {
    width: 100px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
}

/* Batch Summary */
.batch-summary {
    background-color: rgba(74, 144, 226, 0.1);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid var(--accent-primary);
}

/* Responsive Design */
@media (max-width: 480px) {
    .calculator-container {
        gap: 15px;
    }
    
    .input-panel,
    .results-panel {
        padding: 15px;
    }
    
    .button {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .panel-title {
        font-size: 1.3rem;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
    
    .confidence-row {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .confidence-input {
        width: 100%;
    }
}

/* Print Styles */
@media print {
    .button-group,
    .csv-section,
    .trademark,
    .confidence-section {
        display: none !important;
    }
    
    .results-content {
        display: block !important;
    }
    
    .chart-container {
        height: 300px;
        page-break-inside: avoid;
    }
    
    .input-panel {
        page-break-after: always;
    }
}