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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1e293b;
    --dark-light: #334155;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --gray-lighter: #f1f5f9;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--gray-lighter);
    transform: translateY(-2px);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.profile-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem;
    border-radius: 50%;
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition);
    background: var(--gray-lighter);
    border: 2px solid transparent;
}

.profile-link:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.profile-link .profile-name {
    display: none;
}

.logout-btn {
    background: none !important;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.logout-text {
    display: inline;
}

@media (max-width: 1200px) {
    .logout-text {
        display: none;
    }
}

/* Main Content */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 2rem;
    animation: slideDown 0.3s ease-out;
}

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

.alert-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border: 1px solid #6ee7b7;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    transition: var(--transition);
}

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

.card-glass {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--gray-lighter);
    color: var(--dark);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-light);
}

.btn-danger {
    background: linear-gradient(135deg, #fca5a5, var(--danger));
    color: var(--white);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Grid */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* Template List Styles */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.template-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.template-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.template-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--gray-lighter);
}

.template-body {
    padding: 1.5rem;
}

.template-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.template-meta {
    display: flex;
    gap: 1rem;
    color: var(--gray);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.template-actions {
    display: flex;
    gap: 0.75rem;
}

/* Page Header */
.page-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.page-description {
    color: var(--gray);
    font-size: 1.1rem;
}

/* Editor Styles */
.editor-container {
    display: grid;
    grid-template-columns: 250px 1fr 300px;
    gap: 2rem;
    margin-top: 2rem;
}

.editor-sidebar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.editor-canvas-wrapper {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.editor-properties {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

.field-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--gray-lighter);
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    cursor: move;
    transition: var(--transition);
    border: 2px solid transparent;
}

.field-item:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-color: var(--primary-light);
    transform: translateX(4px);
}

.field-icon {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.canvas-container {
    position: relative;
    display: inline-block;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

#templateCanvas {
    display: block;
    max-width: 100%;
    height: auto;
    cursor: crosshair;
}

.upload-area {
    border: 3px dashed var(--gray-light);
    border-radius: var(--radius);
    padding: 3rem;
    text-align: center;
    transition: var(--transition);
    background: var(--gray-lighter);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    color: var(--gray);
}

.upload-text {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.upload-hint {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--gray-lighter);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: var(--gray-light);
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.empty-text {
    color: var(--gray);
    margin-bottom: 2rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .editor-container {
        grid-template-columns: 1fr;
    }
    
    .editor-sidebar,
    .editor-properties {
        position: static;
    }
}

/* Hamburger Menu Button */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 24px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Large Desktop */
@media (max-width: 1400px) {
    .container {
        max-width: 100%;
    }
    
    .nav-link {
        padding: 0.5rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .nav-brand {
        font-size: 1.1rem;
    }
}

/* Tablet/Small Laptop */
@media (max-width: 1200px) {
    .nav-links {
        gap: 0.4rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.5rem;
        font-size: 0.75rem;
    }
    
    .nav-link svg {
        width: 16px;
        height: 16px;
    }
}

/* Mobile */
@media (max-width: 968px) {
    .container {
        padding: 0 1rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .template-grid {
        grid-template-columns: 1fr;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        z-index: 999;
        gap: 0.5rem;
    }
    
    .nav-links.active {
        max-height: 600px;
        border-bottom: 1px solid var(--gray-lighter);
    }
    
    .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }
    
    .nav-link svg {
        width: 20px;
        height: 20px;
    }
    
    .profile-link {
        border-radius: var(--radius-sm);
        padding: 0.75rem 1rem;
        background: var(--gray-lighter);
    }
    
    .profile-link .profile-name {
        display: inline;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* Footer */
.app-footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
    box-shadow: 0 -4px 6px -1px rgb(0 0 0 / 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-copyright {
    text-align: center;
    color: var(--gray);
    font-size: 0.875rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-lighter);
}

.heart-icon {
    display: inline-block;
    color: var(--danger);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    15% { transform: scale(1.15); }
    30% { transform: scale(1); }
    45% { transform: scale(1.15); }
    60% { transform: scale(1); }
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}