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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-info: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

/* Login Sayfası */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-align: center;
}

.login-box h2 {
    color: var(--text-color);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 400;
}

.login-footer {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-light);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Butonlar */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

.btn-secondary:hover {
    background-color: #475569;
}

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

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

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

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

/* Alert Mesajları */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

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

/* Dashboard */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.dashboard-header h1 {
    color: var(--text-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.market-name {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
}

.dashboard-actions {
    margin-bottom: 2rem;
}

.dashboard-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.dashboard-actions .btn span {
    font-size: 1.5rem;
    line-height: 1;
}

/* Kampanya Kartları */
.campaigns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.campaign-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.campaign-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.campaign-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.campaign-header h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    flex: 1;
}

.campaign-info p {
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.campaign-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-active {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-inactive {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-expired {
    background-color: #fef3c7;
    color: #92400e;
}

/* Form Sayfaları */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    color: var(--text-color);
}

.form-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.form-section h2 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Ürün Girişi */
.product-item {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.product-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Kampanya Detay */
.campaign-details {
    display: grid;
    gap: 2rem;
}

.detail-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.detail-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.detail-card p {
    margin-bottom: 0.75rem;
    color: var(--text-light);
}

.products-preview {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.products-preview h3 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--bg-color);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--border-color);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 1rem;
}

.product-info h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-price strong {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.old-price {
    color: var(--text-light);
    text-decoration: line-through;
    font-size: 0.875rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.empty-state p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    margin-top: auto;
    text-align: center;
    color: var(--text-light);
}

/* Ürün Arama Autocomplete */
.product-search-wrapper {
    position: relative;
}

.product-search-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
}

.product-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    margin-top: 0.25rem;
}

.search-result-item {
    padding: 0.75rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.search-result-item:hover {
    background-color: var(--bg-color);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-no-results {
    padding: 1rem;
    text-align: center;
    color: var(--text-light);
}

/* Şablon Seçim Grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.template-card {
    position: relative;
}

.template-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.template-label {
    display: block;
    cursor: pointer;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    background: var(--card-bg);
    transition: all 0.2s;
    text-align: center;
}

.template-label:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.template-card input[type="radio"]:checked + .template-label,
.template-card.selected .template-label {
    border-color: var(--primary-color);
    background: #eff6ff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.template-preview {
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
    background: var(--bg-color);
    border-radius: 6px;
    padding: 0.5rem;
}

.template-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.template-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.template-info strong {
    color: var(--text-color);
    font-size: 1rem;
}

.template-info span {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .campaigns-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }
    
    .template-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .template-preview {
        height: 80px;
    }
    
    .template-info strong {
        font-size: 0.875rem;
    }
    
    .template-info span {
        font-size: 0.75rem;
    }
}

/* Ürün Özellikleri */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.feature-checkbox {
    display: block;
    cursor: pointer;
}

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

.feature-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    transition: all 0.2s;
    font-weight: 500;
}

.feature-checkbox:hover .feature-label {
    border-color: var(--primary-color);
    background: #eff6ff;
}

.feature-checkbox input[type="checkbox"]:checked + .feature-label {
    border-color: var(--primary-color);
    background: #dbeafe;
    color: var(--primary-color);
}

.feature-icon {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

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

.feature-checkbox input[type="checkbox"]:checked + .feature-label .feature-icon::before {
    content: '✓';
    font-size: 14px;
    font-weight: bold;
}

/* AI Görsel İşleme */
.ai-image-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 8px;
    border: 2px dashed var(--border-color);
}

.ai-image-section h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ai-image-section h3::before {
    content: '🤖';
    font-size: 1.5rem;
}

.ai-prompt-group {
    margin-bottom: 1rem;
}

.ai-prompt-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.ai-prompt-group textarea {
    width: 100%;
    min-height: 80px;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    resize: vertical;
}

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

.ai-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.ai-btn-primary:hover {
    background: #1e40af;
}

.ai-btn-secondary {
    background: #64748b;
    color: white;
}

.ai-btn-secondary:hover {
    background: #475569;
}

.ai-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.ai-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.ai-preview {
    margin-top: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.ai-preview img {
    max-width: 100%;
    border-radius: 6px;
}

/* Dashboard Modernizasyonu */
.dashboard-header {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.dashboard-header h1 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.user-info {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.market-name {
    background: var(--gradient-primary);
    box-shadow: 0 4px 6px rgba(102, 126, 234, 0.3);
    font-weight: 600;
}

.dashboard-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.dashboard-actions .btn {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: none;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.dashboard-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

.dashboard-actions .btn-secondary {
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    color: white;
}

/* Kampanya Kartları Modernizasyonu */
.campaigns-grid {
    gap: 2rem;
}

.campaign-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
    overflow: hidden;
}

.campaign-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.campaign-card:hover::before {
    transform: scaleX(1);
}

.campaign-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.08);
    border-color: rgba(37, 99, 235, 0.3);
}

.campaign-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.badge {
    font-weight: 600;
    padding: 0.375rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.badge-active {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.badge-inactive {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.badge-expired {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.campaign-info {
    background: #f8fafc;
    padding: 1.25rem;
    border-radius: 10px;
    margin: 1rem 0;
}

.campaign-info p {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.campaign-info p:last-child {
    border-bottom: none;
}

.campaign-info strong {
    color: #64748b;
    font-weight: 600;
}

.campaign-actions {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.campaign-actions .btn {
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.campaign-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
}

/* Form Section Modernizasyonu */
.form-section {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(226, 232, 240, 0.8);
    transition: box-shadow 0.3s ease;
}

.form-section:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
}

.form-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
    position: relative;
}

.form-section h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
}

/* Page Header Modernizasyonu */
.page-header {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navbar Modernizasyonu */
.navbar {
    background: white;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    backdrop-filter: blur(10px);
}

.nav-logo {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-menu a {
    position: relative;
    padding: 0.5rem 0;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Buton Modernizasyonu */
.btn {
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

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

.btn-secondary {
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    color: white;
}

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

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

/* Alert Modernizasyonu */
.alert {
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-left: 4px solid;
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.1) 100%);
    border-left-color: #10b981;
    color: #065f46;
}

.alert-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
    border-left-color: #ef4444;
    color: #991b1b;
}

/* Empty State Modernizasyonu */
.empty-state {
    background: white;
    border-radius: 16px;
    padding: 4rem 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    border: 2px dashed #e2e8f0;
}

.empty-state p {
    font-size: 1.25rem;
    color: #64748b;
    margin-bottom: 2rem;
}

/* Admin Panel Modernizasyonu */
.admin-tabs {
    background: white;
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    margin-bottom: 2rem;
    display: inline-flex;
    gap: 0.5rem;
}

.admin-tab {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 600;
    position: relative;
}

.admin-tab.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.admin-tab:not(.active):hover {
    background: #f8fafc;
}

.stats-grid {
    gap: 1.5rem;
}

.stat-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    border: 1px solid rgba(226, 232, 240, 0.8);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.stat-card > div:first-child {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

/* Table Modernizasyonu */
.data-table {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.data-table thead {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.data-table th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: #64748b;
    padding: 1.25rem 1rem;
}

.data-table td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid #f1f5f9;
}

.data-table tbody tr {
    transition: background-color 0.2s ease;
}

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive İyileştirmeleri */
@media (max-width: 768px) {
    .dashboard-header h1 {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 1.75rem;
    }
    
    .form-section {
        padding: 1.5rem;
    }
    
    .campaign-card {
        padding: 1.5rem;
    }
}