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

:root {
    --primary-color: #0066cc;
    --secondary-color: #004499;
    --text-color: #333;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --error-color: #dc3545;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
    width: 100%;
    background-color: #fff;
}

.logo {
    width: 100%;
    max-width: 100%;
    height: auto;
    margin-bottom: 20px;
    display: block;
}

h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.1rem;
}

.location {
    color: #888;
    font-size: 0.95rem;
    margin-top: 5px;
    font-style: italic;
}

.footer-location {
    color: #666;
    font-size: 0.9rem;
    margin-top: 10px;
}

main {
    flex: 1;
}

.upload-section {
    margin-bottom: 30px;
}

.quality-select {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quality-label {
    font-weight: 500;
    color: var(--text-color);
}

.quality-buttons {
    display: flex;
    gap: 8px;
}

.quality-btn {
    padding: 6px 14px;
    border-radius: 999px;
    border: 2px solid var(--border-color);
    background-color: #fff;
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
}

.quality-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.15);
}

.quality-btn:hover {
    border-color: var(--primary-color);
}

.upload-box {
    border: 3px dashed var(--border-color);
    border-radius: 12px;
    padding: 30px 20px; /* was 60px 20px – half as tall */
    text-align: center;
    background-color: var(--card-bg);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.upload-box:hover {
    border-color: var(--primary-color);
    background-color: #f8f9fa;
}

.upload-box.dragover {
    border-color: var(--primary-color);
    background-color: #e3f2fd;
}

.upload-content svg {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.upload-content h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.upload-content p {
    color: #666;
    margin-bottom: 5px;
}

.file-types {
    font-size: 0.9rem;
    color: #999;
    margin-top: 10px;
}

.file-info {
    background-color: var(--card-bg);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-order {
    width: 100%;
    margin-top: 20px;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
}

.results-section {
    margin-top: 30px;
}

.results-section h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.quote-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.quote-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    font-size: 1.1rem;
}

.quote-row.total {
    font-size: 1.5rem;
    font-weight: bold;
    padding-top: 20px;
    margin-top: 10px;
    border-top: 2px solid var(--border-color);
}

.quote-row .label {
    color: #666;
}

.quote-row .value {
    color: var(--text-color);
    font-weight: 500;
}

.quote-row.total .value {
    color: var(--primary-color);
}

.total-price {
    font-size: 2rem;
    color: var(--primary-color);
}

.quote-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 15px 0;
}

.loading {
    text-align: center;
    padding: 40px;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}

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

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px;
}

.step {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    border-radius: 8px;
    background-color: #f8f9fa;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.step.active {
    opacity: 1;
    background-color: #e3f2fd;
    transform: scale(1.02);
}

.step-icon {
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

.step.active .step-icon {
    animation: bounce 0.6s ease-in-out infinite;
}

.step-text {
    font-weight: 500;
    color: var(--text-color);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.preview-section {
    margin-top: 30px;
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.preview-section h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.preview-hint {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
    font-style: italic;
}

.viewer-3d {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.viewer-3d canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* Debug Panel */
.debug-panel {
    margin-top: 30px;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 2px solid #e0e0e0;
}

.debug-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: #f8f9fa;
    border-bottom: 2px solid #e0e0e0;
    border-radius: 12px 12px 0 0;
}

.debug-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.debug-toggle {
    padding: 5px 15px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
}

.debug-toggle:hover {
    background-color: var(--secondary-color);
}

.debug-content {
    padding: 15px 20px;
    max-height: 300px;
    overflow-y: auto;
}

.debug-log {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
}

.debug-entry {
    margin: 5px 0;
    padding: 5px 10px;
    border-radius: 4px;
    background-color: #f8f9fa;
}

.debug-entry.debug-info {
    color: #333;
}

.debug-entry.debug-success {
    color: #28a745;
    background-color: #d4edda;
    font-weight: 500;
}

.debug-entry.debug-warning {
    color: #856404;
    background-color: #fff3cd;
}

.debug-entry.debug-error {
    color: #721c24;
    background-color: #f8d7da;
    font-weight: 500;
}

.error {
    background-color: #fee;
    border: 1px solid var(--error-color);
    border-radius: 8px;
    padding: 15px;
    color: var(--error-color);
    margin-top: 20px;
}

.seo-content {
    /* Hidden visually but accessible to search engines */
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.seo-content h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.seo-content p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 15px;
}

footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
    color: #666;
    border-top: 1px solid var(--border-color);
}

.admin-link {
    color: var(--primary-color);
    text-decoration: none;
    margin-left: 10px;
}

.admin-link:hover {
    text-decoration: underline;
}

.footer-brand {
    margin-bottom: 10px;
}

.footer-logo {
    max-width: 160px;
    height: auto;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .logo {
        width: 100%;
        max-width: 100%;
    }

    .upload-box {
        padding: 40px 15px;
    }

    .upload-content h2 {
        font-size: 1.2rem;
    }

    .quote-card {
        padding: 20px;
    }

    .quote-row {
        font-size: 1rem;
        flex-direction: column;
        gap: 5px;
    }

    .quote-row.total {
        font-size: 1.3rem;
    }

    .total-price {
        font-size: 1.5rem;
    }

    .file-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .seo-content {
        /* Already hidden, no mobile-specific changes needed */
    }

    .viewer-3d {
        height: 300px;
    }

    .loading-steps {
        max-width: 100%;
    }

    .step {
        font-size: 0.9rem;
    }
}

/* Order Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 0;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    line-height: 30px;
    text-align: center;
}

.modal-close:hover {
    color: var(--text-color);
}

.modal-body {
    padding: 20px;
}

.modal-info {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.modal-body .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.modal-body .form-group input,
.modal-body .form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: #fff;
}

.modal-body .form-group select {
    cursor: pointer;
}

.modal-body .form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.modal-body .radio-group {
    display: flex;
    gap: 20px;
    margin-top: 8px;
}

.modal-body .radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
}

.modal-body .radio-label input[type="radio"] {
    margin-right: 8px;
    cursor: pointer;
    width: auto;
}

.modal-body .form-hint {
    display: block;
    margin-top: 4px;
    font-size: 0.85em;
    color: #666;
}

.modal-body .form-actions {
    display: flex;
    gap: 10px;
    margin-top: 25px;
}

.modal-body .form-actions .btn {
    flex: 1;
}

.success-message {
    background-color: #d4edda;
    border: 1px solid #28a745;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    color: #155724;
    font-weight: 500;
}

.quote-actions {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}