:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --gray-dark: #334155;
    --sidebar-width: 260px;
    --header-height: 80px;
    --transition: all 0.3s ease;
    --radius: 10px;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f5f7fb;
    color: var(--dark);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

/* Admin Container */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--dark) 0%, #0f172a 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 30px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.admin-logo i {
    font-size: 2rem;
    color: var(--primary);
}

.admin-logo h2 {
    font-size: 1.5rem;
    color: white;
}

.admin-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.admin-details h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.admin-details p {
    font-size: 0.9rem;
    color: var(--gray-light);
    opacity: 0.8;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

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

.sidebar-nav li {
    margin-bottom: 5px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: white;
    border-left-color: var(--primary);
}

.sidebar-nav a.active {
    background-color: rgba(99, 102, 241, 0.1);
    color: white;
    border-left-color: var(--primary);
}

.sidebar-nav i {
    width: 20px;
    text-align: center;
    font-size: 1.2rem;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.back-to-site {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    text-decoration: none;
    padding: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    margin-bottom: 15px;
    transition: var(--transition);
}

.back-to-site:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.logout-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

.logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.2);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 20px;
}

/* Admin Header */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: white;
    padding: 20px 30px;
    border-radius: var(--radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.admin-header h1 {
    font-size: 1.8rem;
    color: var(--dark);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.notification {
    position: relative;
    width: 45px;
    height: 45px;
    background-color: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--gray);
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--danger);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Button Styles */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

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

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

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

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

.btn-outline {
    background-color: transparent;
    color: var(--gray);
    border: 2px solid var(--gray-light);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Content Sections */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Upload Section */
.upload-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.upload-card, .preview-card {
    background-color: white;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.upload-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.upload-subtitle {
    color: var(--gray);
    margin-bottom: 30px;
}

/* Form Styles */
.upload-form {
    margin-top: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.form-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--dark);
}

.form-label i {
    color: var(--primary);
}

.form-input {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--light);
}

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

textarea.form-input {
    min-height: 120px;
    resize: vertical;
}

/* Image Upload Area */
.image-upload-area {
    border: 2px dashed var(--gray-light);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--light);
}

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

.upload-placeholder i {
    font-size: 3rem;
    color: var(--gray);
    margin-bottom: 15px;
}

.upload-placeholder h3 {
    margin-bottom: 10px;
    color: var(--dark);
}

.upload-placeholder p {
    color: var(--gray);
    margin-bottom: 5px;
}

.upload-requirements {
    font-size: 0.9rem;
    color: var(--gray);
    opacity: 0.8;
}

/* Image Preview */
.image-preview {
    margin-top: 20px;
    display: none;
}

.image-preview.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.preview-image {
    width: 100%;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.preview-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* Category Options */
.category-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.category-option input {
    display: none;
}

.category-card {
    padding: 20px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.category-card i {
    font-size: 2rem;
    margin-bottom: 10px;
}

.category-card span {
    font-weight: 500;
}

.category-option input:checked + .category-card {
    border-color: var(--primary);
    background-color: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.ai-category i { color: #8b5cf6; }
.web-category i { color: #3b82f6; }
.mobile-category i { color: #10b981; }
.design-category i { color: #f59e0b; }

/* Tech Tags */
.tech-tags-section {
    background-color: var(--light);
    padding: 20px;
    border-radius: var(--radius);
}

.tech-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
    min-height: 50px;
    padding: 10px;
    border-radius: 5px;
    background-color: white;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--primary);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.remove-tech {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0;
    font-size: 0.8rem;
    opacity: 0.8;
    transition: var(--transition);
}

.remove-tech:hover {
    opacity: 1;
}

.tech-input-wrapper {
    display: flex;
    gap: 10px;
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-light);
}

/* Preview Card */
.preview-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--dark);
}

.preview-title i {
    color: var(--primary);
}

.preview-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.preview-project {
    background: linear-gradient(135deg, #f0f4ff 0%, #e6f7ff 100%);
    border-radius: var(--radius);
    padding: 30px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.preview-placeholder {
    text-align: center;
    color: var(--gray);
}

.preview-placeholder i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.preview-info {
    background-color: var(--light);
    padding: 20px;
    border-radius: var(--radius);
}

.status-indicators {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-label {
    color: var(--gray);
}

.status-value {
    font-weight: 600;
    color: var(--dark);
}

.storage-bar {
    height: 8px;
    background-color: var(--gray-light);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 10px;
}

.storage-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 4px;
}

/* Projects Table */
.projects-table-container {
    background-color: white;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.projects-table {
    width: 100%;
    border-collapse: collapse;
}

.projects-table th {
    text-align: left;
    padding: 15px;
    background-color: var(--light);
    color: var(--dark);
    font-weight: 600;
    border-bottom: 2px solid var(--gray-light);
}

.projects-table td {
    padding: 15px;
    border-bottom: 1px solid var(--gray-light);
    vertical-align: middle;
}

.table-thumbnail {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: 5px;
}

.table-actions {
    display: flex;
    gap: 10px;
}

.table-btn {
    width: 35px;
    height: 35px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.edit-btn {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

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

.delete-btn {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

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

/* Analytics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.stat-card {
    background-color: white;
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.total-views {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.unique-visitors {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
}

.popular-category {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.engagement {
    background-color: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.stat-info h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.stat-info p {
    color: var(--gray);
}

/* Settings */
.settings-card {
    background-color: white;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-top: 30px;
}

.settings-card h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
    color: var(--dark);
}

.settings-card h3 i {
    color: var(--primary);
}

.settings-form {
    max-width: 500px;
}

/* Notification Toast */
.notification-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: white;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
}

.notification-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.toast-content i {
    font-size: 1.5rem;
    color: var(--secondary);
}

.toast-close {
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px;
}

.toast-close:hover {
    color: var(--dark);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .upload-container {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 70px;
        overflow: hidden;
    }
    
    .sidebar-header, .admin-details, .sidebar-nav span, .sidebar-footer span {
        display: none;
    }
    
    .admin-logo {
        justify-content: center;
    }
    
    .admin-logo h2 {
        display: none;
    }
    
    .sidebar-nav a {
        justify-content: center;
        padding: 20px;
    }
    
    .sidebar-nav i {
        font-size: 1.5rem;
    }
    
    .main-content {
        margin-left: 70px;
    }
    
    .back-to-site, .logout-btn {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 15px;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 20px;
    }
    
    .category-options {
        grid-template-columns: 1fr;
    }
    
    .tech-input-wrapper {
        flex-direction: column;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}