/* footprint.css - CO₂ Calculator Styles */

/* ============================================
   CALCULATOR CONTAINER
   ============================================ */

.footprint-calculator {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    overflow: hidden;
}

.calc-header {
    background: linear-gradient(135deg, #2e7d32, #1b5e20);
    color: white;
    padding: 24px;
    text-align: center;
}

.calc-header h2 {
    margin: 0 0 8px;
    font-size: 1.5rem;
}

.calc-header p {
    margin: 0;
    opacity: 0.9;
}

/* ============================================
   PROGRESS BAR
   ============================================ */

.progress-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: #f5f5f5;
    gap: 8px;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    opacity: 0.5;
    transition: all 0.3s;
}

.progress-step.active,
.progress-step.completed {
    opacity: 1;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e0e0e0;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.progress-step.active .step-number {
    background: #2e7d32;
    color: white;
}

.progress-step.completed .step-number {
    background: #4caf50;
    color: white;
}

.progress-step.completed .step-number::after {
    content: '✓';
    position: absolute;
}

.step-label {
    font-size: 0.7rem;
    color: #666;
    white-space: nowrap;
}

.progress-line {
    width: 30px;
    height: 2px;
    background: #e0e0e0;
}

/* ============================================
   STEP CONTENT
   ============================================ */

.calc-content {
    padding: 24px;
    min-height: 400px;
}

.step-content h3 {
    margin: 0 0 24px;
    color: #1b5e20;
    font-size: 1.3rem;
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Radio & Checkbox Cards */
.radio-group,
.checkbox-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.radio-group.vertical {
    flex-direction: column;
}

.radio-group.small .radio-card {
    padding: 10px 16px;
}

.radio-card,
.checkbox-card {
    flex: 1;
    min-width: 100px;
    padding: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.radio-card input,
.checkbox-card input {
    display: none;
}

.radio-card:hover,
.checkbox-card:hover {
    border-color: #4caf50;
    background: #f9fbe7;
}

.radio-card.selected,
.checkbox-card.selected {
    border-color: #2e7d32;
    background: #e8f5e9;
}

.radio-card .icon,
.checkbox-card .icon {
    font-size: 1.5rem;
}

.radio-card .text,
.checkbox-card .text {
    font-weight: 500;
}

.radio-card .hint {
    font-size: 0.75rem;
    color: #666;
}

/* Sliders */
.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #e0e0e0;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #2e7d32;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #2e7d32;
    cursor: pointer;
    border: none;
}

.slider-value {
    display: block;
    text-align: center;
    margin-top: 8px;
    font-weight: 600;
    color: #2e7d32;
}

/* Select */
.select-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
}

.select-input:focus {
    outline: none;
    border-color: #2e7d32;
}

/* Hidden */
.hidden {
    display: none !important;
}

/* ============================================
   NAVIGATION
   ============================================ */

.calc-navigation {
    display: flex;
    justify-content: space-between;
    padding: 16px 24px;
    background: #f5f5f5;
    border-top: 1px solid #e0e0e0;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: #2e7d32;
    color: white;
}

.btn-primary:hover {
    background: #1b5e20;
}

.btn-secondary {
    background: white;
    color: #666;
    border: 1px solid #ddd;
}

.btn-secondary:hover:not(:disabled) {
    background: #f5f5f5;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   RESULT PAGE
   ============================================ */

.result-content {
    padding: 0 !important;
}

.result-header {
    display: flex;
    justify-content: space-around;
    padding: 32px;
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
}

.total-footprint,
.sec-score {
    text-align: center;
}

.total-footprint .label,
.sec-score .label {
    display: block;
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 4px;
}

.total-footprint .value {
    font-size: 3rem;
    font-weight: 700;
    color: #1b5e20;
}

.total-footprint .unit {
    display: block;
    font-size: 0.9rem;
    color: #666;
}

.sec-score .value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--score-color, #ff9800);
}

.sec-score .max {
    font-size: 1rem;
    color: #999;
}

/* Comparison Bars */
.comparison-bars {
    padding: 24px;
}

.bar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.bar-label {
    width: 120px;
    font-size: 0.85rem;
    color: #666;
}

.bar-track {
    flex: 1;
    height: 24px;
    background: #f0f0f0;
    border-radius: 12px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    border-radius: 12px;
    transition: width 0.5s ease;
}

.bar-fill.you { background: linear-gradient(90deg, #2e7d32, #4caf50); }
.bar-fill.germany { background: #ff9800; }
.bar-fill.world { background: #2196f3; }
.bar-fill.target { background: #9c27b0; }

.bar-value {
    width: 50px;
    text-align: right;
    font-weight: 600;
    font-size: 0.85rem;
}

/* Breakdown Chart */
.breakdown-chart {
    padding: 24px;
    background: #fafafa;
}

.breakdown-chart h4 {
    margin: 0 0 16px;
    color: #333;
}

.pie-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.housing { background: #2196f3; }
.dot.mobility { background: #f44336; }
.dot.nutrition { background: #4caf50; }
.dot.consumption { background: #ff9800; }

/* Recommendations */
.recommendations {
    padding: 24px;
}

.recommendations h4 {
    margin: 0 0 16px;
    color: #333;
}

.rec-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    margin-bottom: 12px;
}

.rec-icon {
    font-size: 1.5rem;
}

.rec-content {
    flex: 1;
}

.rec-action {
    font-weight: 500;
    color: #333;
    margin-bottom: 4px;
}

.rec-savings {
    display: flex;
    gap: 12px;
    align-items: center;
}

.savings-value {
    color: #2e7d32;
    font-weight: 600;
}

.difficulty {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: #f5f5f5;
}

.difficulty.easy { background: #e8f5e9; color: #2e7d32; }
.difficulty.medium { background: #fff3e0; color: #e65100; }
.difficulty.hard { background: #ffebee; color: #c62828; }

.btn-join-challenge {
    padding: 8px 16px;
    background: #2e7d32;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    white-space: nowrap;
}

.btn-join-challenge:hover {
    background: #1b5e20;
}

/* CTA Boxes */
.cta-register,
.cta-saved {
    padding: 24px;
    margin: 24px;
    border-radius: 12px;
    text-align: center;
}

.cta-register {
    background: #fff3e0;
    border: 2px dashed #ff9800;
}

.cta-saved {
    background: #e8f5e9;
    border: 2px solid #4caf50;
}

.cta-register p,
.cta-saved p {
    margin: 0 0 16px;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    font-size: 1.2rem;
    color: #666;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .radio-group:not(.vertical) {
        flex-direction: column;
    }
    
    .result-header {
        flex-direction: column;
        gap: 24px;
    }
    
    .bar-label {
        width: 80px;
        font-size: 0.75rem;
    }
    
    .progress-bar {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 16px;
    }
    
    .step-label {
        display: none;
    }
    
    .rec-card {
        flex-wrap: wrap;
    }
    
    .btn-join-challenge {
        width: 100%;
        margin-top: 8px;
    }
}