/* Modern Design System Variables */
:root {
    /* Color Palette - Modern and Professional */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
    
    /* Success colors */
    --success-50: #f0fdf4;
    --success-100: #dcfce7;
    --success-200: #bbf7d0;
    --success-300: #86efac;
    --success-400: #4ade80;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;
    --success-800: #166534;
    --success-900: #14532d;
    
    --secondary-50: #f8fafc;
    --secondary-100: #f1f5f9;
    --secondary-200: #e2e8f0;
    --secondary-300: #cbd5e1;
    --secondary-400: #94a3b8;
    --secondary-500: #64748b;
    --secondary-600: #475569;
    --secondary-700: #334155;
    --secondary-800: #1e293b;
    --secondary-900: #0f172a;
    
    --success-500: #10b981;
    --success-600: #059669;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --error-500: #ef4444;
    --error-600: #dc2626;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-700) 0%, var(--secondary-800) 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--secondary-50) 0%, var(--primary-50) 100%);
    color: var(--secondary-800);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Modern App Container */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.app-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--secondary-50) 0%, var(--primary-50) 100%);
    opacity: 0.95;
    z-index: 0;
}

.app-container > * {
    position: relative;
    z-index: 1;
}

/* Modern Header */
.header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    min-height: 70px;
    /* display: flex; */
    align-items: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    letter-spacing: -0.025em;
}

.header h1 i {
    font-size: var(--font-size-xl);
    opacity: 0.9;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Modern Button System */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    font-family: var(--font-family);
    letter-spacing: 0.025em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-normal);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary-600);
    border: 2px solid var(--primary-500);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--primary-500);
    color: white;
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--error-500) 0%, var(--error-600) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Reset button special styling */
#resetBtn {
    background: linear-gradient(135deg, var(--error-500) 0%, var(--error-600) 100%);
    color: white;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

#resetBtn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-icon {
    padding: var(--spacing-sm);
    border: 1px solid var(--secondary-200);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--secondary-600);
    backdrop-filter: blur(10px);
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-600);
    border-color: var(--primary-300);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-icon.active {
    background: var(--primary-500);
    color: white;
    border-color: var(--primary-600);
    box-shadow: var(--shadow-md);
}

/* Modern Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    flex: 1;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    height: calc(100vh - 70px); /* Account for header height */
    overflow: hidden;
}

/* Modern Sidebar Design */
.sidebar {
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sidebar-header {
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border-bottom: 1px solid var(--secondary-200);
    backdrop-filter: blur(10px);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-300) transparent;
}

.sidebar-content::-webkit-scrollbar {
    width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--secondary-300);
    border-radius: 3px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-400);
}

/* Modern Panel Design */
.panel {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
}

.panel:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.panel:last-child {
    margin-bottom: 0;
}

.panel h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--secondary-800);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    letter-spacing: -0.025em;
}

.panel h3 i {
    color: var(--primary-600);
    font-size: var(--font-size-base);
}

/* Modern Color Panel */
.color-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.color-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--secondary-200);
    transition: all var(--transition-fast);
}

.color-control:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--primary-300);
    transform: translateY(-1px);
}

.color-control label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--secondary-700);
    min-width: 80px;
    letter-spacing: 0.025em;
}

.color-picker {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    background: none;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.color-picker:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* Modern Logo Management */
.logo-upload {
    margin-bottom: var(--spacing-lg);
}

.logo-upload input[type="file"] {
    display: none;
}

.logo-upload label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border: 2px dashed var(--primary-300);
    border-radius: var(--radius-xl);
    background: rgba(var(--primary-50), 0.5);
    color: var(--primary-700);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logo-upload label:hover {
    border-color: var(--primary-500);
    background: rgba(var(--primary-100), 0.8);
    transform: translateY(-2px);
}

.logo-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.logo-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-lg);
    border: 1px solid var(--secondary-200);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logo-item:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--primary-300);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.logo-item.selected {
    background: var(--primary-50);
    border-color: var(--primary-500);
    box-shadow: var(--shadow-md);
}

.logo-item img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

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

.logo-item .logo-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--secondary-800);
    margin-bottom: 2px;
}

.logo-item .logo-size {
    font-size: var(--font-size-xs);
    color: var(--secondary-500);
}

/* Modern Text Controls */
.text-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.text-input {
    padding: var(--spacing-md);
    border: 1px solid var(--secondary-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    background: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.text-input:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 0 0 3px rgba(var(--primary-500), 0.1);
}

.text-styling {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.select-control {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--secondary-200);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: rgba(255, 255, 255, 0.8);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

.select-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(var(--primary-500), 0.1);
}

.text-buttons, .text-align {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
}

/* Modern Canvas Section */
.canvas-section {
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    height: 100%;
}

.canvas-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-sm);
    overflow: hidden;
    height: 100%;
}

.view-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
}

.uniform-type-selector, .view-selection {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-xl);
    border: 1px solid var(--secondary-200);
    backdrop-filter: blur(10px);
}

.uniform-type-btn, .view-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    background: transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
    color: var(--secondary-600);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.uniform-type-btn:hover, .view-btn:hover {
    background: rgba(255, 255, 255, 0.8);
    color: var(--secondary-800);
}

.uniform-type-btn.active {
    background: var(--success-500);
    color: white;
    box-shadow: var(--shadow-md);
}

.view-btn.active {
    background: var(--primary-500);
    color: white;
    box-shadow: var(--shadow-md);
}

/* Modern Design Canvas */
.design-canvas {
    flex: 1;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-xl);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--secondary-200);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    height: 100%;
    max-height: calc(100vh - 140px);
}

.design-canvas svg {
    max-width: 95%;
    max-height: 95%;
    width: auto;
    height: auto;
    display: block;
    object-fit: contain;
    transition: all var(--transition-normal);
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.design-canvas.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-500);
    font-size: var(--font-size-lg);
    font-weight: 500;
}

.design-canvas.loading::before {
    content: "✨ Loading your design...";
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Modern Properties Panel */
.properties-panel {
    min-height: 200px;
}

.no-selection {
    color: var(--secondary-400);
    font-style: italic;
    text-align: center;
    padding: var(--spacing-2xl);
    font-size: var(--font-size-sm);
}

/* Modern Layers Panel */
.layers-panel {
    max-height: 300px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-300) transparent;
}

.layers-panel::-webkit-scrollbar {
    width: 6px;
}

.layers-panel::-webkit-scrollbar-track {
    background: transparent;
}

.layers-panel::-webkit-scrollbar-thumb {
    background: var(--secondary-300);
    border-radius: 3px;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.layer-item:hover {
    background: rgba(var(--primary-100), 0.5);
}

.layer-item.selected {
    background: var(--primary-100);
    color: var(--primary-800);
    box-shadow: var(--shadow-sm);
}

.layer-item .layer-color {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-sm);
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-sm);
}

/* Modern Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.modal-content {
    background: rgba(255, 255, 255, 0.95);
    margin: 5% auto;
    padding: 0;
    border-radius: var(--radius-2xl);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-2xl);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: modalSlideIn var(--transition-normal) ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--secondary-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--gradient-card);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.modal-header h3 {
    margin: 0;
    color: var(--secondary-800);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.close-btn {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--secondary-500);
    padding: var(--spacing-xs);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.close-btn:hover {
    background: var(--secondary-100);
    color: var(--secondary-700);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--secondary-200);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    background: rgba(var(--secondary-50), 0.5);
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--secondary-700);
    font-size: var(--font-size-sm);
    letter-spacing: 0.025em;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--secondary-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    background: rgba(255, 255, 255, 0.8);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 0 0 3px rgba(var(--primary-500), 0.1);
}

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

.form-group input[type="range"] {
    width: calc(100% - 60px);
    margin-right: var(--spacing-sm);
}

#opacityValue {
    font-weight: 600;
    color: var(--secondary-700);
    min-width: 50px;
    display: inline-block;
    font-size: var(--font-size-sm);
}

/* Modern Element Styles */
.svg-element {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.svg-element:hover {
    opacity: 0.85;
}

.svg-element.selected {
    filter: drop-shadow(0 0 12px rgba(var(--primary-500), 0.6));
}

.text-element {
    cursor: move;
    user-select: none;
    font-family: var(--font-family);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-fast);
}

.text-element:hover {
    outline: 2px dashed var(--primary-400);
    outline-offset: 4px;
}

.text-element.selected {
    outline: 2px solid var(--primary-500);
    outline-offset: 4px;
}

.logo-element {
    cursor: move;
    user-select: none;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}

.logo-element:hover {
    outline: 2px dashed var(--primary-400);
    outline-offset: 4px;
}

.logo-element.selected {
    outline: 2px solid var(--primary-500);
    outline-offset: 4px;
}

/* Modern Transform Box */
.transform-box {
    position: absolute;
    border: 2px solid var(--primary-500);
    pointer-events: none;
    z-index: 1002;
    border-radius: var(--radius-sm);
}

.transform-handle {
    position: absolute;
    width: 14px;
    height: 14px;
    background: var(--primary-500);
    border: 3px solid white;
    border-radius: 50%;
    cursor: pointer;
    pointer-events: all;
    z-index: 1003;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.transform-handle:hover {
    background: var(--primary-600);
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

.transform-handle.rotate {
    width: 18px;
    height: 18px;
    background: var(--success-500);
    border-color: white;
    font-size: 12px;
    color: white;
    display: flex;
    align-items: center;
        justify-content: center;
    font-weight: bold;
}

.transform-handle.rotate:hover {
    background: var(--success-600);
}

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

.selected {
    outline: 2px solid var(--primary-500) !important;
    outline-offset: 2px;
}

.dragging {
    opacity: 0.8;
    cursor: move;
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Text Style Controls in Properties Panel */
.text-style-controls, .text-align-controls {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
        justify-content: center;
    }
    
.text-style-controls .btn-icon, .text-align-controls .btn-icon {
    min-width: 44px;
    min-height: 44px;
}

/* Properties Panel Enhanced */
#propertiesPanel textarea,
#propertiesPanel select,
#propertiesPanel input[type="number"],
#propertiesPanel input[type="color"],
#propertiesPanel input[type="range"] {
    border: 1px solid var(--secondary-200);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
}

#propertiesPanel input[type="color"] {
    width: 100%;
    height: 48px;
    border-radius: var(--radius-lg);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

#propertiesPanel input[type="color"]:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

/* Hide mobile controls on desktop */
.mobile-controls {
    display: none;
}

/* Mobile Transform Controls */
.mobile-transform-controls {
    padding: var(--spacing-sm);
    max-height: 60vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-300) transparent;
}

.mobile-transform-controls::-webkit-scrollbar {
    width: 6px;
}

.mobile-transform-controls::-webkit-scrollbar-track {
    background: transparent;
}

.mobile-transform-controls::-webkit-scrollbar-thumb {
    background: var(--secondary-300);
    border-radius: 3px;
}

.mobile-transform-controls::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-400);
}

.transform-section {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm);
    background: var(--secondary-100);
    border-radius: var(--radius-md);
    border: 1px solid var(--secondary-200);
}

.transform-section h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--secondary-800);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.slider-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.slider-group label {
    min-width: 80px;
    font-size: 12px;
    color: var(--secondary-700);
    font-weight: 500;
}

.mobile-slider {
    flex: 1;
    height: 6px;
    background: var(--secondary-300);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.mobile-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-500);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.mobile-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-500);
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.slider-value {
    min-width: 40px;
    text-align: right;
    font-size: 12px;
    color: var(--secondary-600);
    font-weight: 600;
    background: var(--secondary-200);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.quick-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.quick-actions .btn {
    flex: 1;
    font-size: 12px;
    padding: var(--spacing-xs) var(--spacing-sm);
}

/* Export Modal Styles */
.export-modal {
    max-width: 600px;
    width: 95%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.export-modal .modal-body {
    flex: 1;
    overflow-y: auto;
    max-height: calc(90vh - 120px); /* Account for header and footer */
    padding: var(--spacing-lg);
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-300) transparent;
}

.export-modal .modal-body::-webkit-scrollbar {
    width: 6px;
}

.export-modal .modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.export-modal .modal-body::-webkit-scrollbar-thumb {
    background: var(--secondary-300);
    border-radius: 3px;
}

.export-modal .modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-400);
}

.export-modal .modal-header,
.export-modal .modal-footer {
    flex-shrink: 0;
}

.export-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.export-section {
    background: var(--secondary-50);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--secondary-200);
}

.export-section h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--secondary-800);
    font-size: var(--font-size-base);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.export-section h4 i {
    color: var(--primary-600);
}

/* Export Checkboxes */
.export-checkboxes {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.export-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: white;
    border: 1px solid var(--secondary-200);
}

.export-checkbox:hover {
    background: var(--primary-50);
    border-color: var(--primary-300);
}

.export-checkbox input[type="checkbox"] {
    display: none;
}

.export-checkbox .checkmark {
        width: 20px;
        height: 20px;
    border: 2px solid var(--secondary-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    background: white;
}

.export-checkbox input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-600);
    border-color: var(--primary-600);
    color: white;
}

.export-checkbox input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    font-size: 12px;
    font-weight: bold;
}

/* Format Selection */
.format-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-md);
}

.format-option {
    cursor: pointer;
}

.format-option input[type="radio"] {
    display: none;
}

.format-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg);
    border: 2px solid var(--secondary-200);
    border-radius: var(--radius-lg);
    background: white;
    transition: all var(--transition-fast);
    gap: var(--spacing-sm);
    min-height: 120px;
        justify-content: center;
}

.format-card:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
}

.format-option input[type="radio"]:checked + .format-card {
    border-color: var(--primary-600);
    background: var(--primary-100);
    box-shadow: 0 0 0 1px var(--primary-600);
}

.format-card i {
    font-size: var(--font-size-xl);
    color: var(--primary-600);
    margin-bottom: var(--spacing-xs);
}

.format-card strong {
    font-size: var(--font-size-base);
    color: var(--secondary-800);
    margin-bottom: 4px;
}

.format-card small {
    font-size: var(--font-size-xs);
    color: var(--secondary-600);
    line-height: 1.3;
}

/* Disabled Format Options */
.format-option.disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.format-option.disabled .format-card {
    background: var(--secondary-50);
    border-color: var(--secondary-200);
    color: var(--secondary-400);
}

.format-option.disabled .format-card:hover {
    border-color: var(--secondary-200);
    background: var(--secondary-50);
}

.format-option.disabled .format-card i {
    color: var(--secondary-400);
}

.format-option.disabled .format-card strong {
    color: var(--secondary-400);
}

.format-option.disabled .format-card small {
    color: var(--secondary-400);
}

/* Format Badges */
.format-card {
    position: relative;
}

.coming-soon-badge,
.recommended-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.coming-soon-badge {
    background: var(--warning-500);
    color: white;
}

.recommended-badge {
    background: var(--success-500);
    color: white;
}

/* Quality Settings */
.quality-settings {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.quality-settings .form-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--secondary-200);
}

.quality-settings .form-group label {
    font-weight: 500;
    color: var(--secondary-700);
    margin: 0;
}

.quality-settings select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--secondary-300);
    border-radius: var(--radius-sm);
    background: white;
    color: var(--secondary-800);
    font-size: var(--font-size-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
        cursor: pointer;
    font-weight: 500;
    color: var(--secondary-700);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-label .checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--secondary-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    background: white;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-600);
    border-color: var(--primary-600);
    color: white;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    font-size: 11px;
    font-weight: bold;
}

/* Password protected watermark checkbox styling */
#includeWatermark:checked + .checkmark {
    background: var(--primary-600);
    border-color: var(--primary-600);
    position: relative;
}

#includeWatermark:checked + .checkmark::before {
    content: "🔒";
    position: absolute;
    top: -8px;
    right: -8px;
    font-size: 10px;
    background: var(--secondary-800);
    color: white;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.checkbox-label[data-protected="true"] {
    position: relative;
}

.checkbox-label[data-protected="true"]::after {
    content: "🔒";
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    opacity: 0.6;
}

/* Export Progress */
.export-progress {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--secondary-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--secondary-200);
    text-align: center;
    display: none;
}

.export-progress.active {
    display: block;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--secondary-200);
    border-radius: 4px;
    overflow: hidden;
    margin: var(--spacing-md) 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
    border-radius: 4px;
    transition: width var(--transition-slow);
    width: 0%;
}

.progress-text {
    color: var(--secondary-600);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

/* Mobile-first responsive design */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 280px 1fr 280px;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .design-canvas {
        max-height: calc(100vh - 180px);
    }
}

@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 260px 1fr 260px;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .panel {
        padding: var(--spacing-md);
    }
    
    .design-canvas {
        max-height: calc(100vh - 160px);
    }
}

@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 240px 1fr 240px;
        gap: var(--spacing-sm);
    }
    
    .design-canvas {
        max-height: calc(100vh - 150px);
    }
    
    .uniform-type-btn, .view-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 768px) {
    /* Mobile-First Layout - Uniform takes center stage */
    .main-content {
        display: flex;
        flex-direction: column;
        height: calc(100vh - 70px);
        overflow: hidden;
        padding: 0;
        gap: 0;
        max-width: 100%;
        margin: 0;
    }
    
    /* Mobile Header Optimization */
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 60px;
    }
    
    .header-content {
        flex-direction: row;
        gap: var(--spacing-sm);
        text-align: left;
    }
    
    .header h1 {
        font-size: var(--font-size-lg);
    }
    
    .header-actions {
        justify-content: flex-end;
        gap: var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    /* Mobile Canvas - Hero Section */
    .canvas-section {
        order: 1;
        flex: 1;
        height: 60vh;
        min-height: 400px;
        max-height: 60vh;
        margin: 0;
        border-radius: 0;
        background: rgba(255, 255, 255, 0.95);
        border: none;
        border-bottom: 1px solid var(--secondary-200);
    }
    
    .canvas-container {
        padding: var(--spacing-sm);
        gap: var(--spacing-xs);
        height: 100%;
    }
   
    
    .view-controls {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-xs);
        flex-wrap: wrap;
    }
    
    .uniform-type-selector, .view-selection {
        gap: var(--spacing-xs);
        padding: 2px;
        background: rgba(255, 255, 255, 0.8);
        border-radius: var(--radius-lg);
        border: 1px solid var(--secondary-300);
    }
    
    .uniform-type-btn, .view-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        border-radius: var(--radius-md);
        min-width: 60px;
    }
    
    .design-canvas {
        flex: 1;
        height: 100%;
        max-height: none;
        border-radius: var(--radius-lg);
        margin: 0;
        padding: var(--spacing-xs);
        box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    }
    
    .design-canvas svg {
        max-width: 100%;
        max-height: 100%;
        width: auto;
        height: auto;
    }
    
    /* Mobile Controls - Bottom Sheet Style */
    .mobile-controls {
        order: 2;
        height: 40vh;
        background: var(--secondary-50);
        border-top: 1px solid var(--secondary-200);
        overflow: hidden;
        display: flex !important;
        flex-direction: column;
    }
    
    /* Mobile Tabs for Controls */
    .mobile-tabs {
        display: flex;
        background: white;
        border-bottom: 1px solid var(--secondary-200);
        flex-shrink: 0;
    }
    
    .mobile-tab {
        flex: 1;
        padding: var(--spacing-sm);
        text-align: center;
        background: none;
        border: none;
        font-size: var(--font-size-xs);
        font-weight: 600;
        color: var(--secondary-600);
        cursor: pointer;
        transition: all var(--transition-fast);
        border-bottom: 2px solid transparent;
    }
    
    .mobile-tab.active {
        color: var(--primary-600);
        border-bottom-color: var(--primary-500);
        background: var(--primary-50);
    }
    
    .mobile-tab-content {
        flex: 1;
        overflow-y: auto;
        padding: var(--spacing-sm);
        display: none;
        -webkit-overflow-scrolling: touch;
    }
    
    .mobile-tab-content.active {
        display: block;
    }
    
    /* Hide desktop sidebars on mobile */
    .sidebar {
        display: none;
    }
    
    /* Compact panels for mobile */
    .panel {
        background: white;
        border-radius: var(--radius-lg);
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--secondary-200);
    }
    
    .panel:last-child {
        margin-bottom: 0;
    }
    
    .panel h3 {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
        color: var(--secondary-800);
        font-weight: 700;
    }
    
    /* Compact form elements */
    .form-group {
        margin-bottom: var(--spacing-sm);
    }
    
    .form-group label {
        font-size: var(--font-size-xs);
        margin-bottom: 4px;
        font-weight: 600;
    }
    
    .form-group input, .form-group select, .form-group textarea {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        border-radius: var(--radius-md);
        min-height: 36px;
    }
    
    /* Mobile-optimized color controls */
    .color-control {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-sm);
        padding: var(--spacing-xs);
        background: var(--secondary-50);
        border-radius: var(--radius-md);
    }
    
    .color-control label {
        flex: 1;
        font-size: var(--font-size-xs);
        margin: 0;
    }
    
    .color-picker {
        width: 32px;
        height: 32px;
        border-radius: var(--radius-md);
        flex-shrink: 0;
    }
    
    /* Mobile text controls */
    .text-input {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .text-buttons, .text-align {
        gap: var(--spacing-xs);
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .btn-icon {
        min-width: 32px;
        min-height: 32px;
        padding: var(--spacing-xs);
    }
    
    /* Mobile logo upload */
    .logo-upload label {
        padding: var(--spacing-sm);
        font-size: var(--font-size-xs);
        border-width: 1px;
        border-style: dashed;
    }
    
    .logo-list {
        gap: var(--spacing-xs);
    }
    
    .logo-item {
        padding: var(--spacing-xs);
        border-radius: var(--radius-md);
    }
    
    .logo-item img {
        width: 32px;
        height: 32px;
    }
    
    .logo-item .logo-name {
        font-size: var(--font-size-xs);
    }
    
    .logo-item .logo-size {
        font-size: 10px;
    }
    
    /* Mobile layers panel */
    .layer-item {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
        border-radius: var(--radius-md);
        margin-bottom: 2px;
    }
    
    .layer-item .layer-color {
        width: 14px;
        height: 14px;
    }
    
    /* Modal adjustments */
    .modal-content {
        width: 95%;
        margin: 5% auto;
        border-radius: var(--radius-lg);
    }
    
    .modal-header, .modal-body, .modal-footer {
        padding: var(--spacing-md);
    }
    
    /* Export Modal Mobile Styles */
    .export-modal {
        max-width: 95%;
        width: 95%;
        max-height: 95vh;
        margin: 2.5vh auto;
    }
    
    .export-modal .modal-body {
        max-height: calc(95vh - 100px);
        padding: var(--spacing-md);
        -webkit-overflow-scrolling: touch;
    }
    
    .export-options {
        gap: var(--spacing-lg);
    }
    
    .export-section {
        padding: var(--spacing-md);
    }
    
    .format-selection {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .format-card {
        min-height: 80px;
        padding: var(--spacing-md);
    }
    
    .format-card i {
        font-size: var(--font-size-lg);
    }
    
    .export-checkboxes {
        gap: var(--spacing-xs);
    }
    
    .export-checkbox {
        padding: var(--spacing-xs);
    }
    
    .quality-settings .form-group {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-sm);
        min-height: 55px;
    }
    
    .header h1 {
        font-size: var(--font-size-base);
    }
    
    .btn {
        padding: 6px 8px;
        font-size: 10px;
    }
    
    .canvas-section {
        height: 65vh;
        min-height: 350px;
    }
    
    .design-canvas {
        height: 100%;
        padding: 4px;
    }
    
    .canvas-container {
        padding: var(--spacing-sm);
        gap: 4px;
    }
    
    .uniform-type-btn, .view-btn {
        padding: 4px 8px;
        font-size: 10px;
        min-width: 50px;
    }
    
    .mobile-controls {
        height: 35vh;
    }
    
    .mobile-tab {
        padding: 8px 4px;
        font-size: 10px;
    }
    
    .mobile-tab i {
        margin-bottom: 2px;
        display: block;
    }
    
    .panel {
        padding: 8px;
        margin-bottom: 8px;
    }
    
    .panel h3 {
        font-size: 12px;
        margin-bottom: 6px;
    }
    
    .form-group {
        margin-bottom: 8px;
    }
    
    .form-group input, .form-group select, .form-group textarea {
        padding: 6px 8px;
        font-size: 11px;
        min-height: 32px;
    }
    
    .color-picker {
        width: 28px;
        height: 28px;
    }
    
    .btn-icon {
        min-width: 28px;
        min-height: 28px;
        padding: 4px;
    }
    
    /* Export Modal for Very Small Screens */
    .export-modal {
        max-height: 98vh;
        margin: 1vh auto;
    }
    
    .export-modal .modal-body {
        max-height: calc(98vh - 80px);
        padding: var(--spacing-sm);
    }
    
    .export-section {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .export-section h4 {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .format-card {
        min-height: 60px;
        padding: var(--spacing-sm);
    }
    
    .format-card strong {
        font-size: var(--font-size-sm);
    }
    
    .format-card small {
        font-size: 10px;
    }
}

/* Landscape orientation on mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .design-canvas {
        max-height: calc(100vh - 120px);
    }
    
    .main-content {
        grid-template-columns: 220px 1fr 220px;
        grid-template-rows: 1fr;
    }
    
    .left-sidebar, .right-sidebar {
        max-height: 100vh;
        overflow-y: auto;
    }
    
    .sidebar {
        max-height: calc(100vh - 100px);
    }
}

/* Touch-friendly improvements for mobile */
@media (max-width: 768px) {
    .btn, .uniform-type-btn, .view-btn {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    .form-group input, .form-group select {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    .logo-item {
        min-height: 54px;
        touch-action: manipulation;
    }
    
    .transform-handle {
        width: 18px;
        height: 18px;
        border-width: 4px;
    }
    
    .transform-handle.rotate {
        width: 22px;
        height: 22px;
        font-size: 14px;
    }
    
    .logo-element, .text-element {
        position: absolute;
        cursor: grab;
        touch-action: none;
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        -webkit-tap-highlight-color: rgba(var(--primary-500), 0.1);
        -webkit-touch-callout: none;
        transition: transform 0.2s ease;
    }
    
    .logo-element:active, .text-element:active {
        cursor: grabbing;
        opacity: 0.8;
        transform: scale(1.05);
        transition: all 0.1s ease;
    }
    
    .logo-element.selected, .text-element.selected {
        outline: 2px solid var(--primary-500);
        outline-offset: 4px;
    }
    
    /* Mobile touch enhancements */
    @media (max-width: 768px) {
        .logo-element, .text-element {
            cursor: default;
            touch-action: none;
        }
        
        .logo-element:active, .text-element:active {
            cursor: default;
        }
        
        .logo-element.touching, .text-element.touching {
            z-index: 1000;
            transform: scale(1.02);
            transition: none;
        }
        
        .logo-element.moving, .text-element.moving {
            transition: none;
            z-index: 1001;
        }
    }
    
    .design-canvas {
        touch-action: none;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
    }
    
    .transform-handle {
        touch-action: none;
        -webkit-tap-highlight-color: rgba(var(--primary-500), 0.3);
        -webkit-touch-callout: none;
    }
    
    .sidebar-content {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn, .uniform-type-btn, .view-btn {
        border-width: 2px;
    }
    
    .transform-handle {
        border-width: 4px;
    }
    
    .svg-element.selected {
        outline-width: 3px;
        outline-offset: 3px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .header, .sidebar, .view-controls {
        display: none !important;
    }
    
    .main-content {
        grid-template-columns: 1fr !important;
        grid-template-rows: 1fr !important;
    }
    
    .canvas-section {
        order: unset !important;
    }
    
    .design-canvas {
        min-height: unset !important;
        max-height: unset !important;
        height: 100vh !important;
        box-shadow: none !important;
        border: none !important;
    }
    
    .design-canvas svg {
        max-width: 100% !important;
        max-height: 100% !important;
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    :root {
        --secondary-50: #0f172a;
        --secondary-100: #1e293b;
        --secondary-200: #334155;
        --secondary-300: #475569;
        --secondary-400: #64748b;
        --secondary-500: #94a3b8;
        --secondary-600: #cbd5e1;
        --secondary-700: #e2e8f0;
        --secondary-800: #f1f5f9;
        --secondary-900: #f8fafc;
    }
}

/* Loading animations */
@keyframes shimmer {
    0% {
        background-position: -468px 0;
    }
    100% {
        background-position: 468px 0;
    }
}

.loading-shimmer {
    animation: shimmer 1.2s ease-in-out infinite;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 1000px 100%;
}

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}