/* Box It Up Calculator Styles */
.biuc-container {
    max-width: 100%; /* Use 100% width */
    margin: 0; /* Remove margin to eliminate extra space */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: white;
}

/* Elementor override protection: scope and re-assert critical colors */
#biuc-calculator .biuc-category-btn {
    background: #f5f5f5 !important;
    color: #666 !important;
    border: none !important;
}

#biuc-calculator .biuc-category-btn.active {
    background: #dc2626 !important;
    color: #ffffff !important;
}

#biuc-calculator .biuc-add-btn,
#biuc-calculator .biuc-continue-btn,
#biuc-calculator .biuc-submit-btn {
    background: #dc2626 !important;
    color: #ffffff !important;
    border: none !important;
}

#biuc-calculator .biuc-back-btn {
    background: #f5f5f5 !important;
    color: #666 !important;
    border: none !important;
}

#biuc-calculator .biuc-result-number { color: #dc2626 !important; }
#biuc-calculator .biuc-capacity-fill { background: linear-gradient(90deg, #dc2626, #ef4444) !important; }
#biuc-calculator .biuc-pricing-section { background: linear-gradient(135deg, #dc2626, #ef4444) !important; color: #fff !important; }
#biuc-calculator .biuc-sidebar-pricing { background: linear-gradient(135deg, #dc2626, #ef4444) !important; color: #fff !important; }

#biuc-calculator h2,
#biuc-calculator h3,
#biuc-calculator h4 {
    color: #1a1a1a !important;
}

#biuc-calculator .biuc-subtitle,
#biuc-calculator .biuc-box-type,
#biuc-calculator .biuc-dimensions,
#biuc-calculator .biuc-result-label,
#biuc-calculator .biuc-capacity-text,
#biuc-calculator .biuc-stat-label,
#biuc-calculator .biuc-item-details {
    color: #666 !important;
}

/* Step 1 Layout - Fluid Responsive */
.biuc-step-1-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 400px);
    gap: clamp(20px, 4vw, 40px);
    align-items: start;
}

/* Step 2 Layout - Fluid Responsive */
.biuc-step-2-layout {
    display: grid;
    grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
    gap: clamp(20px, 4vw, 40px);
    align-items: start;
    min-height: 600px;
}

/* Left Side - Furniture Selection */
.biuc-furniture-section {
    background: white;
    border-radius: 12px;
    padding: clamp(20px, 4vw, 40px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.biuc-furniture-section h2 {
    font-size: clamp(20px, 4vw, 28px);
    font-weight: 700;
    margin-bottom: 8px;
    color: #1a1a1a;
    text-align: center;
}

.biuc-subtitle {
    color: #666;
    margin-bottom: clamp(24px, 4vw, 40px);
    font-size: clamp(14px, 2vw, 16px);
    text-align: center;
}

/* Enhanced Category Navigation - Equal Sized Buttons */
.biuc-category-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: clamp(24px, 4vw, 40px);
    gap: clamp(6px, 1.5vw, 10px);
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    width: 100%;
    overflow: hidden;
}

/* Ensure nav spacing isn't overridden by global builders */
#biuc-calculator .biuc-category-nav {
    gap: 10px !important;
    column-gap: 10px !important;
    width: 100% !important;
    position: relative;
}

/* Remove margins on children so gap controls spacing */
#biuc-calculator .biuc-category-nav .biuc-category-btn,
#biuc-calculator .biuc-category-nav .biuc-nav-arrow {
    margin: 0 !important;
}

/* Category buttons container */
.biuc-category-buttons {
    display: flex;
    gap: 10px;
    overflow-x: hidden;
    scroll-behavior: smooth;
    flex: 1;
    padding: 0 20px;
    margin: 0 10px;
}



.biuc-nav-arrow {
    background: #dc2626;
    border: none;
    font-size: 18px;
    color: white;
    cursor: pointer;
    padding: 10px 12px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.biuc-nav-arrow:hover {
    background: #b91c1c;
}

.biuc-nav-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.biuc-nav-arrow:disabled:hover {
    background: none;
    color: #666;
}

/* Category buttons - Inactive grey, Active red */
.biuc-category-btn {
    background: #f5f5f5; /* Light grey for inactive */
    border: none;
    padding: 10px 14px; /* Slightly smaller padding */
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px; /* Slightly smaller font size */
    font-weight: 600;
    transition: all 0.3s ease;
    color: #666; /* Grey text for inactive */
    white-space: nowrap;
    position: relative;
    margin: 0 2px;
    min-height: 38px; /* Adjust min-height */
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-width: 120px;
    max-width: 140px;
    text-align: center;
}

.biuc-category-btn.active {
    background: #dc2626;
    color: white;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
    transform: translateY(-1px);
    border-radius: 8px; /* ensure corners stay the same */
}

.biuc-category-btn:hover:not(.active) {
    background: #f0f0f0; /* keep grey feel on hover */
    color: #666;
    transform: none;
    border-radius: 8px; /* ensure corners stay the same */
}

.biuc-category-btn:active {
    transform: translateY(0);
}

/* Furniture Grid - Compact 4-column layout */
.biuc-furniture-grid {
    position: relative;
}

.biuc-category-items {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: clamp(12px, 2vw, 16px);
}

.biuc-category-items.active {
    display: grid;
}

.biuc-furniture-item {
    background: white;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: clamp(12px, 2vw, 16px);
    text-align: center;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    min-height: clamp(120px, 15vh, 160px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.biuc-furniture-item:hover {
    border-color: #dc2626;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15);
    transform: translateY(-2px);
}

.biuc-furniture-item h4 {
    font-size: clamp(12px, 2vw, 14px);
    font-weight: 600;
    margin-bottom: 4px;
    color: #1a1a1a;
    line-height: 1.2;
    hyphens: auto;
    -webkit-hyphens: auto;
    -moz-hyphens: auto;
    -ms-hyphens: auto;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.biuc-dimensions {
    color: #666;
    font-size: clamp(10px, 1.5vw, 12px);
    margin-bottom: clamp(8px, 1.5vw, 12px);
    line-height: 1.2;
}

.biuc-add-btn {
    background: #dc2626;
    color: white;
    border: none;
    padding: clamp(6px, 1.5vw, 12px);
    border-radius: 6px;
    cursor: pointer;
    font-size: clamp(10px, 1.5vw, 12px);
    font-weight: 600;
    transition: all 0.2s ease;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: auto;
}

.biuc-add-btn:hover {
    background: #b91c1c;
    transform: translateY(-1px);
}

.biuc-add-btn:active {
    transform: translateY(0);
}

/* Step 1 - Calculation Section */
.biuc-calculation-section {
    background: white;
    border-radius: 12px;
    padding: clamp(20px, 3vw, 32px);
    position: sticky;
    top: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.biuc-calculation-section h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1a1a1a;
    text-align: center;
}

/* Pricing Display - MUCH SMALLER AND COMPACT */
.biuc-pricing-section {
    margin: 12px 0;
    padding: 12px;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    border-radius: 6px;
    color: white;
    text-align: center;
    box-shadow: 0 1px 4px rgba(220, 38, 38, 0.2);
}

.biuc-pricing-header {
    font-size: 10px;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 3px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.biuc-total-price {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 2px;
    line-height: 1;
}

.biuc-price-breakdown {
    font-size: 12px;
    opacity: 0.9;
    margin-bottom: 6px;
    padding-top: 8px;
}

.biuc-price-per-box {
    font-size: 8px;
    opacity: 0.8;
    padding: 3px 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: inline-block;
}

.biuc-setup-fee {
    font-size: 10px;
    opacity: 0.9;
    margin-top: 6px;
}

/* Capacity Info */
.biuc-capacity-info {
    margin: 32px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.biuc-capacity-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: 500;
}

.biuc-box-type {
    color: #666;
}

.biuc-capacity-bar {
    height: 8px;
    background: #e5e5e5;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.biuc-capacity-fill {
    height: 100%;
    background: linear-gradient(90deg, #dc2626, #ef4444);
    transition: width 0.3s ease;
}

.biuc-capacity-text {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: #666;
}

/* Results */
.biuc-results {
    display: flex;
    gap: 16px;
    margin: 24px 0;
    align-items: center;
}

.biuc-result-item {
    flex: 1;
    text-align: center;
    padding: 12px 8px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e5e5e5;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 80px;
}

.biuc-result-number {
    font-size: 20px;
    font-weight: 700;
    color: #dc2626;
    line-height: 1;
}

.biuc-result-label {
    font-size: 13px;
    color: #666;
    font-weight: 500;
}

/* Selected Items */
.biuc-selected-items {
    margin: 32px 0;
}

.biuc-selected-items h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.biuc-items-list {
    max-height: 240px;
    overflow-y: auto;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    background: #fafafa;
}

.biuc-no-items {
    color: #999;
    font-style: italic;
    text-align: center;
    padding: 32px 20px;
    margin: 0;
}

.biuc-selected-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    background: white;
}

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

.biuc-item-info {
    flex: 1;
}

.biuc-item-name {
    font-weight: 500;
    color: #1a1a1a;
    font-size: 14px;
}

.biuc-item-details {
    font-size: 12px;
    color: #666;
    margin-top: 2px;
}

.biuc-item-quantity {
    display: flex;
    align-items: center;
    gap: 8px;
}

.biuc-qty-btn {
    background: #f5f5f5;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    color: #666;
}

.biuc-qty-btn:hover {
    background: #e5e5e5;
    color: #333;
}

.biuc-qty-number {
    min-width: 24px;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
}

/* Step Actions */
.biuc-step-actions {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid #e5e5e5;
}

.biuc-continue-btn {
    background: #dc2626;
    color: white;
    border: none;
    padding: 16px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    width: 100%;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(220, 38, 38, 0.2);
}

.biuc-continue-btn:hover {
    background: #b91c1c;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(220, 38, 38, 0.3);
}

/* Step 2 - Order Sidebar */
.biuc-order-sidebar {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 20px;
    height: fit-content;
}

.biuc-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e5e5e5;
}

.biuc-sidebar-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0;
}

.biuc-back-btn {
    background: #f5f5f5;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    color: #666;
    transition: all 0.2s ease;
    font-weight: 500;
}

.biuc-back-btn:hover {
    background: #e5e5e5;
    color: #333;
}

/* Sidebar Pricing - MUCH SMALLER */
.biuc-sidebar-pricing {
    margin-bottom: 16px;
    padding: 10px;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    border-radius: 5px;
    color: white;
    text-align: center;
}

.biuc-sidebar-pricing .biuc-pricing-header {
    font-size: 9px;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.biuc-sidebar-pricing .biuc-total-price {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 1px;
    line-height: 1;
}

.biuc-sidebar-pricing .biuc-price-breakdown {
    font-size: 11px;
    opacity: 0.9;
    padding-top: 6px;
}

/* Summary Stats */
.biuc-summary-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.biuc-summary-stat {
    text-align: center;
    padding: 16px 12px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e5e5e5;
}

.biuc-stat-number {
    font-size: 24px;
    font-weight: 700;
    color: #dc2626;
    margin-bottom: 4px;
    line-height: 1;
}

.biuc-stat-label {
    font-size: 12px;
    color: #666;
    font-weight: 500;
}

/* Sidebar Capacity */
.biuc-sidebar-capacity {
    margin-bottom: 24px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

.biuc-sidebar-capacity .biuc-capacity-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #666;
}

.biuc-sidebar-capacity .biuc-capacity-bar {
    height: 6px;
    background: #e5e5e5;
    border-radius: 3px;
    overflow: hidden;
}

/* Sidebar Items */
.biuc-sidebar-items h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.biuc-sidebar-list {
    max-height: 200px;
    overflow-y: auto;
}

.biuc-sidebar-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 13px;
}

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

.biuc-sidebar-item-name {
    color: #1a1a1a;
    font-weight: 500;
}

.biuc-sidebar-item-qty {
    font-weight: 600;
    color: #666;
}

/* Step 2 - Form Section */
.biuc-form-section {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.biuc-form-header {
    margin-bottom: 40px;
    text-align: center;
}

.biuc-form-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.biuc-form-subtitle {
    color: #666;
    font-size: 16px;
    margin: 0;
}

/* Contact Form */
.biuc-contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

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

.biuc-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #1a1a1a;
    font-size: 14px;
}

.biuc-form-group input,
.biuc-form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e5e5e5;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.2s ease;
    box-sizing: border-box;
    font-family: inherit;
    background: #fafafa;
}

.biuc-form-group input:focus,
.biuc-form-group textarea:focus {
    outline: none;
    border-color: #dc2626;
    background: white;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.biuc-form-group input::placeholder,
.biuc-form-group textarea::placeholder {
    color: #999;
}

/* Form Actions */
.biuc-form-actions {
    margin-top: 32px;
    text-align: center;
}

.biuc-submit-btn {
    background: #dc2626;
    color: white;
    border: none;
    padding: 18px 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 200px;
    justify-content: center;
}

.biuc-submit-btn:hover {
    background: #b91c1c;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(220, 38, 38, 0.4);
}

.biuc-submit-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.biuc-btn-icon {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.biuc-submit-btn:hover .biuc-btn-icon {
    transform: translateX(2px);
}

/* Success/Error Messages */
.biuc-message {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}

.biuc-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.biuc-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Responsive Design */
/* Laptop breakpoint */
@media (max-width: 1024px) {
    .biuc-category-items {
        grid-template-columns: repeat(4, 1fr);
        gap: 14px;
    }
    
    .biuc-step-2-layout {
        grid-template-columns: 280px 1fr;
        gap: 24px;
    }
    
    .biuc-form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* Fluid Responsive Breakpoints */

/* Medium screens - Stack layouts */
@media (max-width: 1024px) {
    .biuc-step-1-layout {
        grid-template-columns: 1fr;
        gap: clamp(20px, 3vw, 30px);
    }
    
    .biuc-step-2-layout {
        grid-template-columns: 1fr;
        gap: clamp(20px, 3vw, 30px);
    }
    
    .biuc-calculation-section {
        position: static;
    }
    
    .biuc-order-sidebar {
        position: static;
        order: 2;
    }
    
    .biuc-form-section {
        order: 1;
    }
}

/* Small screens - Adjust furniture grid */
@media (max-width: 768px) {
    .biuc-category-items {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: clamp(8px, 1.5vw, 12px);
    }
    
    .biuc-furniture-item {
        min-height: clamp(100px, 12vh, 140px);
        padding: clamp(10px, 1.5vw, 14px);
    }
    
    .biuc-category-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0;
        gap: clamp(6px, 1vw, 8px) !important;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    /* Scoped gap override for builders */
    #biuc-calculator .biuc-category-nav {
        gap: clamp(6px, 1vw, 8px) !important;
        column-gap: clamp(6px, 1vw, 8px) !important;
    }
    
    .biuc-category-nav::-webkit-scrollbar {
        display: none;
    }
    
    .biuc-category-btn {
        padding: clamp(8px, 1.5vw, 12px);
        font-size: clamp(12px, 2vw, 13px);
        flex-shrink: 0;
        margin: 0 1px;
        min-width: clamp(70px, 15vw, 80px);
    }
    
    .biuc-nav-arrow {
        display: none;
    }
    
    .biuc-results {
        flex-direction: column;
        gap: clamp(6px, 1vw, 8px);
        margin: clamp(16px, 3vw, 20px) 0;
    }
    
    .biuc-summary-results {
        grid-template-columns: 1fr;
        gap: clamp(6px, 1vw, 8px);
    }
    
    .biuc-order-sidebar {
        position: static;
        order: 2;
    }
    
    .biuc-form-section {
        order: 1;
    }
    
    .biuc-calculation-section {
        position: static;
    }
    
    .biuc-furniture-section {
        padding: 24px;
    }
    
    .biuc-calculation-section {
        padding: 24px;
    }
    
    .biuc-form-section {
        padding: 24px;
    }
    
    .biuc-order-sidebar {
        padding: 20px;
    }
    
    .biuc-category-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0;
        gap: 8px !important;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    /* Scoped gap override for builders */
    #biuc-calculator .biuc-category-nav {
        gap: 8px !important;
        column-gap: 8px !important;
    }
    
    .biuc-category-nav::-webkit-scrollbar {
        display: none;
    }
    
    .biuc-category-btn {
        padding: 10px 12px;
        font-size: 13px;
        flex-shrink: 0;
        margin: 0 1px;
        min-width: 80px;
    }
    
    .biuc-nav-arrow {
        display: none;
    }
    
    .biuc-category-items {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .biuc-furniture-item {
        padding: 14px;
        min-height: 140px;
    }
    
    .biuc-results {
        flex-direction: column;
        gap: 8px;
        margin: 20px 0;
    }
    
    .biuc-summary-results {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .biuc-form-header h2 {
        font-size: 24px;
    }
    
    .biuc-sidebar-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* Mobile breakpoint - Fluid adjustments */
@media (max-width: 480px) {
    .biuc-category-items {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: clamp(6px, 1vw, 10px);
    }
    
    .biuc-furniture-item {
        padding: clamp(8px, 1.5vw, 12px);
        min-height: clamp(90px, 10vh, 120px);
    }
    
    .biuc-item-icon {
        font-size: 28px;
        margin-bottom: 6px;
    }
    
    .biuc-furniture-item h4 {
        font-size: 13px;
    }
    
    .biuc-dimensions {
        font-size: 11px;
        margin-bottom: 10px;
    }
    
    .biuc-add-btn {
        padding: 6px 10px;
        font-size: 11px;
    }
    
    .biuc-category-nav {
        padding: 0;
        gap: 5px !important;
    }

    #biuc-calculator .biuc-category-nav {
        gap: 5px !important;
        column-gap: 5px !important;
    }

    /* Compact results on mobile */
    .biuc-results {
        flex-direction: column;
        gap: 6px;
        margin: 16px 0;
    }
    
    .biuc-category-btn {
        padding: 8px 10px;
        font-size: 12px;
        min-height: 36px;
        min-width: 70px;
    }
    
    .biuc-form-header h2 {
        font-size: 20px;
    }
    
    .biuc-form-subtitle {
        font-size: 14px;
    }
    
    .biuc-submit-btn {
        width: 100%;
        padding: 16px 24px;
    }
}

/* Large screens - Enhanced spacing */
@media (min-width: 1280px) {
    .biuc-category-items {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: clamp(16px, 2vw, 20px);
    }

    .biuc-furniture-item {
        min-height: clamp(160px, 18vh, 180px);
        padding: clamp(16px, 2vw, 20px);
    }

    .biuc-results {
        gap: clamp(16px, 2vw, 20px);
    }
}