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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f6fa;
}


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

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.login-box h2 {
    text-align: center;
    margin-bottom: 10px;
    color: #2c3e50;
}

.login-subtitle {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 30px;
}

.login-footer {
    margin-top: 20px;
    text-align: center;
    color: #7f8c8d;
    font-size: 14px;
}

.login-footer a {
    color: #3498db;
    text-decoration: none;
}


.admin-header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.admin-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
}

.admin-logo h2 {
    color: #e74c3c;
    font-size: 24px;
}

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


.admin-container {
    display: flex;
    min-height: calc(100vh - 70px);
}


.admin-sidebar {
    width: 250px;
    background: #2c3e50;
    padding: 20px 0;
}

.admin-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    color: #ecf0f1;
    text-decoration: none;
    transition: background 0.3s;
}

.admin-nav .nav-link:hover,
.admin-nav .nav-link.active {
    background: #34495e;
    border-left: 4px solid #e74c3c;
}


.admin-main {
    flex: 1;
    padding: 30px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 32px;
    color: #2c3e50;
}


.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.dashboard-card {
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    margin-bottom: 15px;
}

.card-content h3 {
    font-size: 32px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.card-content p {
    color: #7f8c8d;
}

.card-link {
    display: inline-block;
    margin-top: 15px;
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
}


.admin-table {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow-x: auto;
}

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

table thead {
    background: #f8f9fa;
}

table th,
table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

table th {
    font-weight: 600;
    color: #2c3e50;
}

.table-image {
    width: 80px;
    height: 50px;
    object-fit: cover;
    border-radius: 5px;
}


.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background: #3498db;
    color: #fff;
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-secondary {
    background: #95a5a6;
    color: #fff;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-danger {
    background: #e74c3c;
    color: #fff;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-info {
    background: #3498db;
    color: #fff;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 14px;
}

.btn-block {
    width: 100%;
}

.badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #2ecc71;
    color: #fff;
}

.badge-danger {
    background: #e74c3c;
    color: #fff;
}


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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #2c3e50;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
}

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


.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}


.password-wrapper {
    position: relative;
}
.password-wrapper .form-control {
    padding-right: 40px;
}
.password-toggle {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    cursor: pointer;
    color: #7f8c8d;
    font-size: 16px;
    padding: 5px;
}
.password-toggle:focus {
    outline: none;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}


.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    background: #fff;
    margin: 50px auto;
    padding: 30px;
    width: 90%;
    max-width: 600px;
    border-radius: 10px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

.dashboard-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}


@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .admin-header-content {
        flex-direction: column;
        gap: 15px;
    }
}