/**
 * Enhanced Warmepumpen Calculator CSS
 * 
 * @package EnhancedWarmepumpenCalculator
 */

/* CSS Custom Properties for Color Management */
:root {
    --ewpc-primary-color: #007bff;
    --ewpc-secondary-color: #6c757d;
    --ewpc-text-color: #2c3e50;
    --ewpc-background-color: #ffffff;
    --ewpc-border-color: #e9ecef;
    --ewpc-success-color: #28a745;
    --ewpc-error-color: #dc3545;
    --ewpc-progress-color: #28a745;
    --ewpc-steps-color: #007bff;
    --ewpc-focus-color: #007bff;
    
    /* Additional variables */
    --ewpc-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --ewpc-border-radius: 8px;
    --ewpc-transition: all 0.3s ease;
}

/* Container */
.ewpc-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: var(--ewpc-background-color);
    border-radius: var(--ewpc-border-radius);
    box-shadow: var(--ewpc-shadow);
    color: var(--ewpc-text-color);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
}

/* Progress Bar */
.ewpc-progress {
    width: 100%;
    height: 8px;
    background: var(--ewpc-border-color);
    border-radius: 4px;
    margin-bottom: 30px;
    overflow: hidden;
}

.ewpc-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--ewpc-progress-color), var(--ewpc-primary-color));
    border-radius: 4px;
    transition: width 0.5s ease;
    position: relative;
}

.ewpc-progress-text {
    position: absolute;
    right: 10px;
    top: -25px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ewpc-text-color);
}

/* Step Indicator */
.ewpc-step-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 40px;
    gap: 10px;
}

.ewpc-step {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    background: var(--ewpc-border-color);
    color: var(--ewpc-text-color);
    transition: var(--ewpc-transition);
    cursor: pointer;
    position: relative;
}

.ewpc-step.active {
    background: var(--ewpc-steps-color);
    color: white;
    transform: scale(1.1);
}

.ewpc-step.completed {
    background: var(--ewpc-success-color);
    color: white;
}

/* Remove text content from HTML and use only CSS */
.ewpc-step {
    text-indent: -9999px; /* Hide HTML text */
}

.ewpc-step::after {
    content: attr(data-step);
    text-indent: 0;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.ewpc-step.completed::after {
    content: '✓';
    font-size: 16px;
}

/* Step Content */
.ewpc-step-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.ewpc-step-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.ewpc-step-content h3 {
    color: var(--ewpc-text-color);
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    text-align: center;
}

/* Form Groups */
.ewpc-form-group {
    margin-bottom: 25px;
    transition: var(--ewpc-transition);
}

.ewpc-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--ewpc-text-color);
}

.ewpc-form-group.ewpc-error {
    border-left: 4px solid var(--ewpc-error-color);
    padding-left: 15px;
    background: rgba(220, 53, 69, 0.05);
}

.ewpc-form-group.ewpc-success {
    border-left: 4px solid var(--ewpc-success-color);
    padding-left: 15px;
    background: rgba(40, 167, 69, 0.05);
}

/* Form Inputs */
.ewpc-form-group input[type="text"],
.ewpc-form-group input[type="email"],
.ewpc-form-group input[type="tel"],
.ewpc-form-group input[type="number"],
.ewpc-form-group select,
.ewpc-form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--ewpc-border-color);
    border-radius: var(--ewpc-border-radius);
    font-size: 16px;
    transition: var(--ewpc-transition);
    background: var(--ewpc-background-color);
    color: var(--ewpc-text-color);
}

.ewpc-form-group input:focus,
.ewpc-form-group select:focus,
.ewpc-form-group textarea:focus {
    outline: none;
    border-color: var(--ewpc-focus-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.ewpc-form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Radio and Checkbox Groups */
.ewpc-radio-group,
.ewpc-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ewpc-radio-group label,
.ewpc-checkbox-group label {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border: 2px solid var(--ewpc-border-color);
    border-radius: var(--ewpc-border-radius);
    cursor: pointer;
    transition: var(--ewpc-transition);
    background: var(--ewpc-background-color);
    font-weight: 400;
}

.ewpc-radio-group label:hover,
.ewpc-checkbox-group label:hover {
    border-color: var(--ewpc-primary-color);
    background: rgba(0, 123, 255, 0.05);
}

.ewpc-radio-group input[type="radio"],
.ewpc-checkbox-group input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    accent-color: var(--ewpc-primary-color);
}

.ewpc-radio-group label:has(input:checked),
.ewpc-checkbox-group label:has(input:checked) {
    border-color: var(--ewpc-primary-color);
    background: rgba(0, 123, 255, 0.1);
    color: var(--ewpc-primary-color);
    font-weight: 600;
}

/* Form Rows */
.ewpc-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .ewpc-form-row {
        grid-template-columns: 1fr;
    }
}

/* Slider */
.ewpc-slider-container {
    margin-top: 15px;
}

.ewpc-slider-container input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--ewpc-border-color);
    outline: none;
    -webkit-appearance: none;
}

.ewpc-slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ewpc-primary-color);
    cursor: pointer;
    box-shadow: var(--ewpc-shadow);
}

.ewpc-slider-container input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ewpc-primary-color);
    cursor: pointer;
    border: none;
    box-shadow: var(--ewpc-shadow);
}

.ewpc-slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 12px;
    color: var(--ewpc-secondary-color);
}

/* Input with Unit */
.ewpc-input-with-unit {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ewpc-input-with-unit input {
    flex: 1;
}

.ewpc-unit {
    padding: 12px 16px;
    background: var(--ewpc-border-color);
    border-radius: var(--ewpc-border-radius);
    font-weight: 600;
    color: var(--ewpc-text-color);
    white-space: nowrap;
}

/* Warmepumpe Type Cards */
.ewpc-waermepumpe-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.ewpc-type-card {
    border: 2px solid var(--ewpc-border-color);
    border-radius: var(--ewpc-border-radius);
    padding: 20px;
    cursor: pointer;
    transition: var(--ewpc-transition);
    background: var(--ewpc-background-color);
    display: flex !important;
    flex-direction: column;
    align-items: flex-start;
}

.ewpc-type-card:hover {
    border-color: var(--ewpc-primary-color);
    transform: translateY(-2px);
    box-shadow: var(--ewpc-shadow);
}

.ewpc-type-card:has(input:checked) {
    border-color: var(--ewpc-primary-color);
    background: rgba(0, 123, 255, 0.05);
}

.ewpc-type-card input[type="radio"] {
    margin-bottom: 15px;
}

.ewpc-type-info h4 {
    margin: 0 0 10px 0;
    color: var(--ewpc-text-color);
    font-size: 18px;
}

.ewpc-type-info p {
    margin: 0 0 15px 0;
    color: var(--ewpc-secondary-color);
    font-size: 14px;
    line-height: 1.4;
}

.ewpc-price {
    color: var(--ewpc-primary-color);
    font-weight: 600;
    font-size: 16px;
}

/* Buttons */
.ewpc-btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--ewpc-border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ewpc-transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.ewpc-btn-next,
.ewpc-btn-calculate,
.ewpc-btn-submit {
    background: var(--ewpc-primary-color);
    color: white;
}

.ewpc-btn-next:hover,
.ewpc-btn-calculate:hover,
.ewpc-btn-submit:hover {
    background: var(--ewpc-secondary-color);
    transform: translateY(-1px);
}

.ewpc-btn-prev {
    background: var(--ewpc-border-color);
    color: var(--ewpc-text-color);
}

.ewpc-btn-prev:hover {
    background: var(--ewpc-secondary-color);
    color: white;
}

/* Step Navigation */
.ewpc-step-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--ewpc-border-color);
}

.ewpc-step-navigation .ewpc-btn {
    min-width: 120px;
}

/* Results Container */
.ewpc-results-container {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.05), rgba(40, 167, 69, 0.05));
    border: 2px solid var(--ewpc-primary-color);
    border-radius: var(--ewpc-border-radius);
    padding: 30px;
    margin-bottom: 40px;
}

.ewpc-results-container h4 {
    color: var(--ewpc-primary-color);
    margin-bottom: 25px;
    font-size: 20px;
    text-align: center;
}

.ewpc-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.ewpc-result-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    background: var(--ewpc-background-color);
    border-radius: var(--ewpc-border-radius);
    box-shadow: var(--ewpc-shadow);
}

.ewpc-result-item.ewpc-result-full {
    grid-column: 1 / -1;
}

.ewpc-result-label {
    font-size: 14px;
    color: var(--ewpc-secondary-color);
    margin-bottom: 8px;
}

.ewpc-result-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--ewpc-primary-color);
}

/* Contact Section */
.ewpc-contact-section {
    background: var(--ewpc-background-color);
    border: 1px solid var(--ewpc-border-color);
    border-radius: var(--ewpc-border-radius);
    padding: 30px;
    margin-top: 30px;
}

.ewpc-contact-section h4 {
    color: var(--ewpc-text-color);
    margin-bottom: 25px;
    font-size: 20px;
    text-align: center;
}

/* Checkbox Label */
.ewpc-checkbox-label {
    display: flex !important;
    align-items: flex-start !important;
    gap: 12px;
    padding: 0 !important;
    border: none !important;
    background: none !important;
}

.ewpc-checkbox-label input[type="checkbox"] {
    margin: 0;
    flex-shrink: 0;
}

.ewpc-checkbox-label a {
    color: var(--ewpc-primary-color);
    text-decoration: underline;
}

/* Loading Overlay */
.ewpc-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    color: white;
}

.ewpc-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

.ewpc-loading-overlay p {
    font-size: 18px;
    font-weight: 600;
}

/* Messages */
.ewpc-message {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    border-radius: var(--ewpc-border-radius);
    margin-bottom: 20px;
    font-weight: 600;
}

.ewpc-message-success {
    background: var(--ewpc-success-color);
    color: white;
}

.ewpc-message-error {
    background: var(--ewpc-error-color);
    color: white;
}

.ewpc-message-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 20px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .ewpc-container {
        padding: 15px;
        margin: 10px;
    }
    
    .ewpc-step-indicator {
        gap: 5px;
    }
    
    .ewpc-step {
        width: 35px;
        height: 35px;
        font-size: 12px;
    }
    
    .ewpc-step-content h3 {
        font-size: 20px;
    }
    
    .ewpc-waermepumpe-types {
        grid-template-columns: 1fr;
    }
    
    .ewpc-result-grid {
        grid-template-columns: 1fr;
    }
    
    .ewpc-step-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .ewpc-step-navigation .ewpc-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .ewpc-radio-group,
    .ewpc-checkbox-group {
        gap: 8px;
    }
    
    .ewpc-radio-group label,
    .ewpc-checkbox-group label {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    .ewpc-type-card {
        padding: 15px;
    }
    
    .ewpc-results-container,
    .ewpc-contact-section {
        padding: 20px;
    }
}

/* Print Styles */
@media print {
    .ewpc-step-indicator,
    .ewpc-progress,
    .ewpc-step-navigation,
    .ewpc-loading-overlay {
        display: none !important;
    }
    
    .ewpc-step-content {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .ewpc-container {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --ewpc-border-color: #000;
        --ewpc-text-color: #000;
        --ewpc-background-color: #fff;
    }
    
    .ewpc-radio-group label,
    .ewpc-checkbox-group label,
    .ewpc-type-card {
        border-width: 3px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .ewpc-step {
        transform: none !important;
    }
    
    .ewpc-type-card:hover {
        transform: none !important;
    }
}