/* PrintXY - Stripe-inspired Design System */

:root {
    /* Colors */
    --color-primary: #635BFF;
    --color-primary-hover: #5851DB;
    --color-primary-light: #F6F5FF;
    --color-success: #30D158;
    --color-success-bg: #E8FBF0;
    --color-error: #FF3B30;
    --color-warning: #FF9500;
    
    /* Grays */
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F4F4F5;
    --color-gray-200: #E4E4E7;
    --color-gray-300: #D1D1D6;
    --color-gray-400: #A0A0AB;
    --color-gray-500: #71717A;
    --color-gray-600: #52525B;
    --color-gray-700: #3F3F46;
    --color-gray-800: #27272A;
    --color-gray-900: #18181B;
    
    /* Semantic */
    --color-text: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-500);
    --color-text-muted: var(--color-gray-400);
    --color-border: var(--color-gray-200);
    --color-bg: #FFFFFF;
    --color-bg-subtle: var(--color-gray-50);
    
    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 15px;
    --font-size-lg: 17px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    
    /* Borders */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg-subtle);
    min-height: 100vh;
}

/* App Layout */
.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.nav {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4) var(--space-6);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    cursor: pointer;
    text-decoration: none;
}

.logo-icon {
    font-size: 24px;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--space-8) var(--space-6);
}

/* Product Selection */
.product-selection {
    max-width: 900px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-3);
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* Product Cards */
.product-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

@media (max-width: 700px) {
    .product-cards {
        grid-template-columns: 1fr;
    }
}

.product-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
}

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

.product-card-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
}

/* Canvas Preview in Card */
.canvas-preview {
    width: 120px;
    height: 150px;
    position: relative;
}

.canvas-frame {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #E8E8E8 0%, #F5F5F5 50%, #E0E0E0 100%);
    border-radius: var(--radius-sm);
    box-shadow: 
        0 4px 8px rgba(0,0,0,0.1),
        inset 0 0 0 3px #D0D0D0;
    position: relative;
}

.canvas-frame::after {
    content: '';
    position: absolute;
    inset: 8px;
    background: linear-gradient(145deg, #FAFAFA, #F0F0F0);
    border-radius: 2px;
}

/* Photo Preview in Card */
.photo-preview {
    width: 140px;
    height: 100px;
    position: relative;
}

.photo-stack {
    position: relative;
    width: 100%;
    height: 100%;
}

.photo-item {
    position: absolute;
    width: 90px;
    height: 60px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

.photo-1 {
    top: 0;
    left: 0;
    transform: rotate(-8deg);
    background: linear-gradient(135deg, #FFE4E1 0%, #FFF0F0 100%);
}

.photo-2 {
    top: 10px;
    left: 20px;
    transform: rotate(3deg);
    background: linear-gradient(135deg, #E1F5FE 0%, #F0F8FF 100%);
}

.photo-3 {
    top: 20px;
    left: 40px;
    transform: rotate(-2deg);
    background: linear-gradient(135deg, #E8F5E9 0%, #F0FFF0 100%);
}

.product-card-content {
    flex: 1;
}

.product-card-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.product-card-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
    line-height: 1.5;
}

.product-card-price {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
}

.product-card-arrow {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    width: 32px;
    height: 32px;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.product-card:hover .product-card-arrow {
    background: var(--color-primary);
    color: white;
}

/* Calculator Section */
.calculator-section {
    max-width: 1100px;
    margin: 0 auto;
}

/* Progress Steps */
.progress-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-8);
    gap: var(--space-2);
}

.progress-step {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-gray-200);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-base);
}

.progress-step.active .step-number {
    background: var(--color-primary);
    color: white;
}

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

.step-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.progress-step.active .step-label {
    color: var(--color-text);
}

.progress-line {
    width: 60px;
    height: 2px;
    background: var(--color-gray-200);
    margin: 0 var(--space-2);
}

@media (max-width: 600px) {
    .step-label {
        display: none;
    }
    .progress-line {
        width: 40px;
    }
}

/* Calculator Container */
.calculator-container {
    position: relative;
}

.back-button {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    padding: var(--space-2) 0;
    margin-bottom: var(--space-4);
    transition: color var(--transition-fast);
}

.back-button:hover {
    color: var(--color-text);
}

.back-arrow {
    font-size: var(--font-size-lg);
}

/* Calculator Layout */
.calculator-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-8);
    align-items: start;
}

@media (max-width: 900px) {
    .calculator-layout {
        grid-template-columns: 1fr;
    }
    
    /* On mobile, keep config panel first (default order), 
       preview panel second so user can configure before seeing large preview */
    .preview-panel {
        order: 1;
    }
    
    .config-panel {
        order: 0;
    }
}

/* Config Panel */
.config-panel {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
}

.panel-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

/* Config Section */
.config-section {
    margin-bottom: var(--space-6);
}

.config-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-3);
}

/* Config Options (Buttons) */
.config-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.config-options .option-btn {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex: 1;
    min-width: 100px;
    text-align: center;
}

.config-options .option-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.config-options .option-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}

.config-options .option-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--color-bg-secondary);
    border-color: var(--color-border);
}

.config-options .option-btn.disabled:hover {
    border-color: var(--color-border);
    background: var(--color-bg-secondary);
}

.config-options .option-btn.active .option-btn-img {
    opacity: 1;
}

/* Option button with image */
.option-btn-img {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    margin-right: var(--space-2);
    opacity: 0.8;
}

/* Larger images for work option buttons (cord, clothespins) */
.work-options .option-btn {
    flex-direction: column;
    padding: var(--space-3);
    min-width: 80px;
    gap: var(--space-2);
}

.work-options .option-btn-img {
    width: var(--space-12); /* 48px - using existing spacing variable */
    height: var(--space-12);
    margin-right: 0;
    margin-bottom: var(--space-1);
}

/* Select Container */
.select-container {
    position: relative;
}

.config-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    padding-right: var(--space-10);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    font-size: var(--font-size-base);
    color: var(--color-text);
    cursor: pointer;
    appearance: none;
    transition: border-color var(--transition-fast);
}

.config-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.config-select option:disabled {
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
}

.attribute-select {
    font-size: var(--font-size-sm);
}

.select-arrow {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    pointer-events: none;
}

/* Packaging Options */
.packaging-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.packaging-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.packaging-option:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.packaging-option.active {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.packaging-option .option-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
}

.packaging-option .option-price {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.packaging-option.active .option-price {
    color: var(--color-primary);
}

/* Quantity Selector */
.quantity-selector {
    display: flex;
    align-items: center;
    gap: 0;
    width: fit-content;
}

.qty-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    font-size: var(--font-size-lg);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    border-right: none;
}

.qty-btn:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    border-left: none;
}

.qty-btn:hover {
    background: var(--color-gray-100);
}

.qty-btn:active {
    background: var(--color-gray-200);
}

.qty-input {
    width: 60px;
    height: 40px;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-align: center;
    color: var(--color-text);
    -moz-appearance: textfield;
}

.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.qty-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.quantity-hint {
    margin-top: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-success);
}

/* Buttons */
.continue-btn, .submit-btn, .primary-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.continue-btn:hover:not(:disabled), 
.submit-btn:hover:not(:disabled),
.primary-btn:hover {
    background: var(--color-primary-hover);
}

.continue-btn:disabled {
    background: var(--color-gray-300);
    cursor: not-allowed;
}

.btn-arrow {
    font-size: var(--font-size-lg);
}

.secondary-btn {
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.secondary-btn:hover {
    background: var(--color-gray-100);
}

.step-buttons {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-6);
    align-items: stretch;
}

.step-buttons .continue-btn,
.step-buttons .submit-btn {
    flex: 1;
    margin-top: 0;
}

.step-buttons .secondary-btn {
    padding: var(--space-4) var(--space-5);
    font-size: var(--font-size-base);
}

/* Preview Summary */
.preview-summary h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.summary-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.summary-value {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* Order Form */
.order-form-inner {
    display: flex;
    flex-direction: column;
}

.form-field {
    margin-bottom: var(--space-5);
}

.field-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.field-label .optional {
    font-weight: 400;
    color: var(--color-text-secondary);
}

.field-input, .field-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.field-input:focus, .field-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.field-textarea {
    resize: vertical;
    min-height: 80px;
}

.field-hint {
    margin-top: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* Preview Panel */
.preview-panel {
    position: sticky;
    top: calc(60px + var(--space-6));
}

/* Product Preview */
.product-preview {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    margin-bottom: var(--space-4);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Canvas Mockup */
.preview-canvas {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.canvas-mockup {
    position: relative;
    width: 220px;
    height: 280px;
    perspective: 1000px;
}

.canvas-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #FAFAFA 0%, #F0F0F0 100%);
    border-radius: var(--radius-sm);
    position: relative;
    box-shadow: 
        0 2px 4px rgba(0,0,0,0.1),
        inset 0 0 0 1px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.canvas-placeholder {
    width: 60px;
    height: 60px;
    color: var(--color-gray-300);
}

.canvas-placeholder svg {
    width: 100%;
    height: 100%;
}

.canvas-depth {
    position: absolute;
    top: 4px;
    right: -8px;
    width: 8px;
    height: calc(100% - 4px);
    background: linear-gradient(180deg, #E0E0E0 0%, #D0D0D0 100%);
    transform: skewY(-45deg);
    transform-origin: top left;
    border-radius: 0 2px 2px 0;
}

.canvas-shadow {
    position: absolute;
    bottom: -20px;
    left: 10%;
    width: 80%;
    height: 20px;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.15) 0%, transparent 70%);
    filter: blur(4px);
}

.preview-size {
    margin-top: var(--space-4);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
}

/* Photo Mockup */
.preview-photo {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.photo-mockup {
    width: 260px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-stack-3d {
    position: relative;
    width: 160px;
    height: 120px;
}

.photo-card {
    position: absolute;
    width: 140px;
    height: 100px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-slow);
}

.photo-back {
    top: 0;
    left: 0;
    transform: rotate(-12deg) translateY(10px);
    background: linear-gradient(135deg, #FFE4E1 0%, #FFF5F5 100%);
}

.photo-middle {
    top: 5px;
    left: 10px;
    transform: rotate(-4deg) translateY(5px);
    background: linear-gradient(135deg, #E1F5FE 0%, #F5FBFF 100%);
}

.photo-front {
    top: 10px;
    left: 20px;
    transform: rotate(3deg);
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
}

.photo-placeholder {
    width: 40px;
    height: 40px;
    color: var(--color-gray-300);
}

.photo-placeholder svg {
    width: 100%;
    height: 100%;
}

.preview-paper {
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Price Card */
.price-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}

.price-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-6) 0;
    color: var(--color-text-secondary);
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.price-breakdown {
    margin-bottom: var(--space-4);
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
}

.price-label {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.price-value {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.price-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-3) 0;
}

.price-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.total-label {
    font-weight: 600;
    font-size: var(--font-size-base);
}

.total-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
}

.price-error {
    text-align: center;
    padding: var(--space-4);
    color: var(--color-warning);
}

.price-error .error-icon {
    font-size: 24px;
    display: block;
    margin-bottom: var(--space-2);
}

.price-error p {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-1);
}

.price-error small {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* Success Section */
.success-section {
    max-width: 500px;
    margin: var(--space-16) auto;
}

.success-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    text-align: center;
}

.success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-5);
    background: var(--color-success-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-success);
}

.success-icon svg {
    width: 32px;
    height: 32px;
}

.success-card h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.success-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.6;
}

.success-card .primary-btn {
    width: auto;
    padding: var(--space-3) var(--space-6);
    margin: 0 auto;
}

/* Footer */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--space-6);
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* Responsive */
@media (max-width: 600px) {
    .main-content {
        padding: var(--space-4);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .product-card {
        padding: var(--space-4);
    }
    
    .product-card-image {
        height: 140px;
    }
    
    .config-panel, .product-preview, .price-card {
        padding: var(--space-4);
    }
    
    .calculator-layout {
        gap: var(--space-4);
    }
}


/* Altcha Widget Styling */
.altcha-field {
    margin-bottom: var(--space-4);
}

altcha-widget {
    --altcha-color-border: var(--color-border);
    --altcha-color-border-focus: var(--color-primary);
    --altcha-color-text: var(--color-text);
    --altcha-color-text-secondary: var(--color-text-secondary);
    --altcha-color-background: var(--color-bg);
    --altcha-color-background-hover: var(--color-gray-50);
    --altcha-max-width: 100%;
    --altcha-mobile-max-width: 100%;
    display: block;
    font-family: var(--font-sans);
}

altcha-widget::part(checkbox) {
    border-radius: var(--radius-sm);
}

altcha-widget::part(footer) {
    display: none;
}


/* 3D Preview Container */
.preview-3d-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(145deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: grab;
}

.preview-3d-container:active {
    cursor: grabbing;
}

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

.preview-3d-controls {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    display: flex;
    gap: var(--space-2);
    z-index: 10;
}

.preview-control-btn {
    width: 36px;
    height: 36px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.preview-control-btn:hover {
    background: var(--color-gray-100);
    border-color: var(--color-primary);
}

.preview-control-btn svg {
    width: 18px;
    height: 18px;
    color: var(--color-text-secondary);
}

.preview-control-btn:hover svg {
    color: var(--color-primary);
}

.preview-3d-hint {
    position: absolute;
    bottom: var(--space-3);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

.preview-3d-container:hover .preview-3d-hint {
    opacity: 0;
}

.preview-size-label {
    text-align: center;
    margin-top: var(--space-4);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
}


/* Fullscreen Modal */
.fullscreen-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-gray-900);
    z-index: 1000;
    display: none;
    flex-direction: column;
}

.fullscreen-modal.active {
    display: flex;
}

.fullscreen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) var(--space-6);
    background: rgba(0, 0, 0, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.fullscreen-header h3 {
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.fullscreen-controls {
    display: flex;
    gap: var(--space-3);
}

.fullscreen-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: white;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.fullscreen-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.fullscreen-btn svg {
    width: 18px;
    height: 18px;
}

.fullscreen-btn.close-btn {
    padding: var(--space-2);
    background: rgba(255, 59, 48, 0.2);
    border-color: rgba(255, 59, 48, 0.4);
}

.fullscreen-btn.close-btn:hover {
    background: rgba(255, 59, 48, 0.4);
}

.fullscreen-canvas-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: grab;
}

.fullscreen-canvas-container:active {
    cursor: grabbing;
}

.fullscreen-canvas-container canvas {
    max-width: 100%;
    max-height: 100%;
}

.fullscreen-hint {
    position: absolute;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    white-space: nowrap;
}


/* Photo Preview Paper Type Badge */
.preview-paper-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    background: var(--color-primary);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}


/* Loading states */
.preview-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-secondary);
}

.preview-loading .loading-spinner {
    width: 32px;
    height: 32px;
}


/* Mobile Responsive for 3D Preview */
@media (max-width: 600px) {
    .preview-3d-container {
        aspect-ratio: 1;
    }
    
    .preview-control-btn {
        width: 32px;
        height: 32px;
    }
    
    .preview-control-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .fullscreen-header {
        padding: var(--space-3) var(--space-4);
    }
    
    .fullscreen-btn span {
        display: none;
    }
}


/* Photo Upload Requirement Styles */
.preview-control-btn.photo-required {
    background: var(--color-warning);
    border-color: var(--color-warning);
    animation: pulse-attention 2s ease-in-out infinite;
}

.preview-control-btn.photo-required svg {
    color: white;
}

.preview-control-btn.photo-uploaded {
    background: var(--color-success);
    border-color: var(--color-success);
}

.preview-control-btn.photo-uploaded svg {
    color: white;
}

@keyframes pulse-attention {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 149, 0, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 8px rgba(255, 149, 0, 0);
    }
}

/* Disabled Continue to Form button */
.continue-btn:disabled .btn-icon {
    margin-right: var(--space-2);
}

/* Photo requirement indicator on step 2 */
.photo-required-hint {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--color-warning);
    color: white;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.photo-required-hint .hint-icon {
    font-size: var(--font-size-lg);
}


/* Photo Upload Section (Step 1) */
.photo-upload-section {
    margin-bottom: var(--space-6);
}

.upload-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.upload-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-5);
    line-height: 1.6;
}

.upload-dropzone {
    position: relative;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-subtle);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-dropzone:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-dropzone.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    transform: scale(1.02);
}

.upload-dropzone.has-image {
    border-style: solid;
    border-color: var(--color-success);
    background: var(--color-success-bg);
    padding: var(--space-4);
}

.upload-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 10;
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    pointer-events: none;
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: var(--color-gray-400);
    transition: color var(--transition-base);
}

.upload-dropzone:hover .upload-icon {
    color: var(--color-primary);
}

.upload-icon svg {
    width: 100%;
    height: 100%;
}

.upload-text {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text);
}

.upload-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.upload-preview-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    pointer-events: none;
}

.upload-preview-container img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.upload-remove-btn {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    width: 32px;
    height: 32px;
    background: rgba(255, 59, 48, 0.9);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    pointer-events: auto;
    z-index: 20;
}

.upload-remove-btn:hover {
    background: var(--color-error);
    transform: scale(1.1);
}

.upload-remove-btn svg {
    width: 16px;
    height: 16px;
    color: white;
}

.upload-success-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    background: var(--color-success-bg);
    color: var(--color-success);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.upload-success-message .success-icon {
    width: 20px;
    height: 20px;
    background: var(--color-success);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
}

/* Embed Mode Styles */
body.embed-mode .nav,
body.embed-mode .footer {
    display: none;
}

body.embed-mode {
    background: transparent;
}

body.embed-mode .app {
    min-height: auto;
}

body.embed-mode .main-content {
    padding: 0;
}