/* ========================================
   DesignPro - Main Stylesheet
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #7c3aed;
    --primary-hover: #6d28d9;
    --primary-light: #ede9fe;
    --secondary-color: #0ea5e9;
    --accent-color: #f97316;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --black: #000000;
    
    /* 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;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Layout */
    --header-height: 60px;
    --sidebar-width: 280px;
    --properties-width: 300px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--gray-50);
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

button {
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--gray-900);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }

/* ========================================
   Components
   ======================================== */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
}

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

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

.btn-secondary {
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background-color: var(--gray-300);
}

.btn-outline {
    border: 1px solid var(--gray-300);
    background-color: var(--white);
    color: var(--gray-700);
}

.btn-outline:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-ghost {
    color: var(--gray-600);
}

.btn-ghost:hover {
    background-color: var(--gray-100);
    color: var(--gray-800);
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon-sm {
    width: 28px;
    height: 28px;
}

.btn-icon-lg {
    width: 44px;
    height: 44px;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: var(--white);
    color: var(--gray-800);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.form-error {
    color: var(--danger-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.badge-success {
    background-color: #dcfce7;
    color: var(--success-color);
}

.badge-warning {
    background-color: #fef3c7;
    color: var(--warning-color);
}

.badge-danger {
    background-color: #fee2e2;
    color: var(--danger-color);
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    min-width: 180px;
    padding: var(--spacing-xs) 0;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-700);
    transition: background-color var(--transition-fast);
    cursor: pointer;
}

.dropdown-item:hover {
    background-color: var(--gray-50);
    color: var(--gray-900);
}

.dropdown-divider {
    height: 1px;
    margin: var(--spacing-xs) 0;
    background-color: var(--gray-200);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-lg {
    max-width: 800px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--gray-500);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(90vh - 130px);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

/* Tabs */
.tabs {
    display: flex;
    gap: var(--spacing-xs);
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-md);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-600);
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--gray-800);
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* Tooltips */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--gray-800);
    color: var(--white);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   Layout Components
   ======================================== */

/* Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.logo svg {
    width: 32px;
    height: 32px;
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.user-menu:hover {
    background-color: var(--gray-100);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-weight: 600;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* Main Content */
.main-content {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background-color: var(--white);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    z-index: 50;
}

.sidebar-section {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: var(--spacing-sm);
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav-item {
    margin-bottom: var(--spacing-xs);
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-nav-link:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.sidebar-nav-link.active {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

/* Properties Panel */
.properties-panel {
    position: fixed;
    top: var(--header-height);
    right: 0;
    width: var(--properties-width);
    height: calc(100vh - var(--header-height));
    background-color: var(--white);
    border-left: 1px solid var(--gray-200);
    overflow-y: auto;
    z-index: 50;
}

.properties-section {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-100);
}

.properties-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* ========================================
   Canvas Editor
   ======================================== */

.editor-layout {
    display: flex;
    height: calc(100vh - var(--header-height));
}

.editor-sidebar {
    width: 260px;
    background-color: var(--white);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    flex-shrink: 0;
}

.editor-canvas-area {
    flex: 1;
    background-color: var(--gray-100);
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.editor-properties {
    width: 300px;
    background-color: var(--white);
    border-left: 1px solid var(--gray-200);
    overflow-y: auto;
    flex-shrink: 0;
}

/* Canvas Container */
.canvas-container {
    position: relative;
    background-color: var(--white);
    box-shadow: var(--shadow-xl);
}

.canvas {
    position: relative;
    background-size: cover;
    background-position: center;
}

/* Canvas Elements */
.canvas-element {
    position: absolute;
    cursor: move;
    user-select: none;
}

.canvas-element.selected {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.canvas-element .resize-handle {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: var(--white);
    border: 1px solid var(--primary-color);
    border-radius: 2px;
}

.canvas-element .resize-handle.nw { top: -4px; left: -4px; cursor: nw-resize; }
.canvas-element .resize-handle.ne { top: -4px; right: -4px; cursor: ne-resize; }
.canvas-element .resize-handle.sw { bottom: -4px; left: -4px; cursor: sw-resize; }
.canvas-element .resize-handle.se { bottom: -4px; right: -4px; cursor: se-resize; }
.canvas-element .resize-handle.n { top: -4px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.canvas-element .resize-handle.s { bottom: -4px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.canvas-element .resize-handle.e { right: -4px; top: 50%; transform: translateY(-50%); cursor: e-resize; }
.canvas-element .resize-handle.w { left: -4px; top: 50%; transform: translateY(-50%); cursor: w-resize; }

/* Rotation Handle */
.rotation-handle {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: var(--white);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-full);
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
}

.rotation-handle::before {
    content: '';
    position: absolute;
    bottom: -12px;
    width: 1px;
    height: 12px;
    background-color: var(--primary-color);
}

/* Text Element */
.text-element {
    min-width: 50px;
    min-height: 20px;
    padding: 4px;
    outline: none;
}

.text-element:focus {
    outline: none;
}

.text-element.editing {
    cursor: text;
}

/* Shape Element */
.shape-element {
    min-width: 20px;
    min-height: 20px;
}

.shape-rectangle {
    border-radius: 4px;
}

.shape-circle {
    border-radius: 50%;
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 86px solid currentColor;
}

/* Image Element */
.image-element img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   Toolbar
   ======================================== */

.editor-toolbar {
    position: absolute;
    top: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background-color: var(--gray-200);
    margin: 0 var(--spacing-xs);
}

/* Zoom Controls */
.zoom-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    background-color: var(--gray-100);
    border-radius: var(--radius-md);
}

.zoom-value {
    min-width: 50px;
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ========================================
   Layer Panel
   ======================================== */

.layer-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.layer-item:hover {
    background-color: var(--gray-100);
}

.layer-item.selected {
    background-color: var(--primary-light);
    border: 1px solid var(--primary-color);
}

.layer-item.locked {
    opacity: 0.5;
}

.layer-thumbnail {
    width: 32px;
    height: 32px;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
}

.layer-info {
    flex: 1;
    min-width: 0;
}

.layer-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.layer-type {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.layer-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ========================================
   Template Gallery
   ======================================== */

.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.template-card {
    position: relative;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.template-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.template-thumbnail {
    aspect-ratio: 1;
    background-color: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.template-info {
    padding: var(--spacing-sm);
}

.template-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.template-category {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.template-premium-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--warning-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

/* ========================================
   Color Picker
   ======================================== */

.color-picker {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.color-swatch {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.color-swatch:hover {
    transform: scale(1.1);
}

.color-swatch.selected {
    border-color: var(--gray-800);
}

.color-swatch.add {
    background-color: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
}

/* ========================================
   Dashboard
   ======================================== */

.dashboard-header {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), #9333ea);
    color: var(--white);
    margin-bottom: var(--spacing-xl);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: 0 var(--spacing-xl);
    margin-top: calc(-1 * var(--spacing-xl));
}

.stat-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
}

.project-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-thumbnail {
    aspect-ratio: 16/9;
    background-color: var(--gray-100);
    position: relative;
}

.project-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    padding: var(--spacing-md);
}

.project-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.project-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ========================================
   Authentication Pages
   ======================================== */

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-light), #c4b5fd);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background-color: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.auth-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.auth-subtitle {
    color: var(--gray-500);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

.social-login {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: var(--white);
    transition: all var(--transition-fast);
}

.social-btn:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
}

.divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--gray-200);
}

.divider span {
    padding: 0 var(--spacing-md);
    color: var(--gray-400);
    font-size: var(--font-size-sm);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1200px) {
    .editor-properties {
        width: 260px;
    }
}

@media (max-width: 992px) {
    .editor-sidebar {
        width: 220px;
    }
    
    .editor-properties {
        position: fixed;
        right: -300px;
        transition: right var(--transition-slow);
    }
    
    .editor-properties.active {
        right: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 100%;
    }
    
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        transition: transform var(--transition-slow);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .editor-layout {
        flex-direction: column;
    }
    
    .editor-sidebar {
        width: 100%;
        height: auto;
        max-height: 200px;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .editor-properties {
        width: 100%;
        height: auto;
        max-height: 300px;
        border-left: none;
        border-top: 1px solid var(--gray-200);
    }
    
    .project-grid {
        grid-template-columns: 1fr;
    }
    
    .template-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .header-center {
        display: none;
    }
    
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    .template-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.flex-1 { flex: 1; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.m-0 { margin: 0; }
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.cursor-pointer { cursor: pointer; }
.cursor-move { cursor: move; }
.cursor-grab { cursor: grab; }

.select-none { user-select: none; }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.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;
}