/* 管理员页面样式 */
:root {
    --primary-color: #4a6fa5;
    --secondary-color: #166088;
    --accent-color: #ff6b6b;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --gray-color: #6c757d;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* 管理员导航栏 */
.admin-navbar {
    background-color: var(--dark-color);
    padding: 15px 0;
    box-shadow: var(--shadow);
}

.admin-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.admin-nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
}

.admin-nav-logo img {
    height: 40px;
    margin-right: 15px;
}

.admin-nav-links {
    display: flex;
    gap: 20px;
}

.admin-nav-link {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.admin-nav-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 登录页面 */
.login-container {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

@media (max-width: 992px) {
    .login-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.login-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: var(--dark-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-header p {
    color: var(--gray-color);
}

.login-form {
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 111, 165, 0.2);
}

.password-toggle {
    position: relative;
}

.password-toggle i {
    position: absolute;
    right: 15px;
    top: -35px;
    cursor: pointer;
    color: var(--gray-color);
}

.remember-group {
    display: flex;
    align-items: center;
}

.remember-group input {
    margin-right: 8px;
}

.remember-group label {
    margin-bottom: 0;
    cursor: pointer;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

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

.login-footer {
    text-align: center;
    color: var(--gray-color);
    font-size: 0.9rem;
    border-top: 1px solid #eee;
    padding-top: 20px;
    margin-top: 20px;
}

.login-footer .note {
    font-size: 0.8rem;
    color: #999;
    margin-top: 5px;
}

.login-error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 10px;
}

.login-info {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.login-info h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.login-info ul {
    list-style-type: none;
    padding-left: 0;
}

.login-info li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-color);
}

.login-info li i {
    color: var(--success-color);
}

.security-note {
    background-color: #d1ecf1;
    color: #0c5460;
    padding: 15px;
    border-radius: var(--border-radius);
    margin-top: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.security-note i {
    font-size: 1.5rem;
}

/* 控制面板样式 */
.dashboard-container {
    max-width: 1400px;
    margin: 40px auto;
    padding: 0 20px;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.dashboard-title {
    color: var(--dark-color);
}

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

.admin-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.admin-name {
    font-weight: 500;
}

.btn-logout {
    padding: 8px 16px;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.btn-logout:hover {
    background-color: #c82333;
}

/* 统计数据 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.art {
    background-color: #17a2b8;
}

.stat-icon.dlc {
    background-color: #28a745;
}

.stat-icon.mod {
    background-color: #ffc107;
    color: var(--dark-color);
}

.stat-icon.total {
    background-color: var(--primary-color);
}

.stat-info h3 {
    font-size: 2rem;
    margin: 0;
    color: var(--dark-color);
}

.stat-info p {
    margin: 5px 0 0;
    color: var(--gray-color);
}

/* 管理表格 */
.manage-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    color: var(--dark-color);
    margin: 0;
}

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

.btn-add {
    padding: 10px 20px;
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-add:hover {
    background-color: #218838;
}

.btn-refresh {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.works-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

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

.works-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--dark-color);
}

.works-table tr:hover {
    background-color: #f8f9fa;
}

.work-image-cell {
    width: 80px;
}

.work-image-small {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-available {
    background-color: #d4edda;
    color: #155724;
}

.status-unavailable {
    background-color: #f8d7da;
    color: #721c24;
}

.category-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    background-color: #e9ecef;
    color: var(--gray-color);
}

.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-action {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

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

.btn-edit:hover {
    background-color: #e0a800;
}

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

.btn-delete:hover {
    background-color: #c82333;
}

/* 表单模态框 */
.form-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.form-modal {
    background-color: white;
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
}

.form-modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-modal-header h2 {
    margin: 0;
    color: var(--dark-color);
}

.form-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-color);
}

.form-modal-body {
    padding: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-modal-footer {
    padding: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

.btn-cancel {
    padding: 10px 20px;
    background-color: #6c757d;
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.btn-cancel:hover {
    background-color: #5a6268;
}

.btn-submit {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .admin-nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .works-table {
        display: block;
        overflow-x: auto;
    }
}