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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #333;
    font-size: 28px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
}

.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
    margin-bottom: 20px;
}

.table-container {
    overflow-x: auto;
}

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

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
}

tr:hover {
    background: #f9fafb;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

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

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

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    border-radius: 10px;
    padding: 30px;
    width: 90%;
    max-width: 500px;
    animation: slideDown 0.3s;
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.modal-header h2 {
    color: #333;
    font-size: 24px;
}

.close {
    font-size: 28px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
    border: none;
    background: none;
}

.close:hover {
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #374151;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.pagination button {
    padding: 8px 16px;
    border: 1px solid #d1d5db;
    background: white;
    border-radius: 5px;
    cursor: pointer;
}

.pagination button:hover:not(:disabled) {
    background: #f9fafb;
}

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

.pagination .page-info {
    color: #6b7280;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #6b7280;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6b7280;
}

.empty-state svg {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.device-list {
    font-size: 12px;
    color: #6b7280;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.device-detail-cell {
    cursor: pointer;
    color: #667eea;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.2s;
    max-width: 300px;
}

.device-detail-cell:hover {
    background: #f3f4f6;
    color: #5568d3;
}

.device-detail-cell .device-count {
    font-weight: 600;
    color: #667eea;
}

.device-detail-cell .device-preview {
    font-size: 12px;
    color: #6b7280;
    margin-top: 4px;
}

/* 设备列表弹框样式 */
.device-list-modal .modal-content {
    max-width: 700px;
}

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

.device-list-table th,
.device-list-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.device-list-table th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
}

.device-list-table tr:hover {
    background: #f9fafb;
}

.device-list-empty {
    text-align: center;
    padding: 40px;
    color: #6b7280;
}

.actions {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.license-key-cell {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 200px;
}

.license-key-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
}

.copy-btn {
    padding: 6px 12px;
    font-size: 12px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.copy-btn:hover {
    background: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.3);
}

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

/* Toast 通知样式 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: white;
    padding: 16px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    animation: slideInRight 0.3s ease-out;
    position: relative;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

.toast.warning {
    border-left: 4px solid #f59e0b;
}

.toast.info {
    border-left: 4px solid #3b82f6;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast.success .toast-icon {
    color: #10b981;
}

.toast.error .toast-icon {
    color: #ef4444;
}

.toast.warning .toast-icon {
    color: #f59e0b;
}

.toast.info .toast-icon {
    color: #3b82f6;
}

.toast-message {
    flex: 1;
    color: #374151;
    font-size: 14px;
    line-height: 1.5;
}

.toast-close {
    background: none;
    border: none;
    font-size: 18px;
    color: #9ca3af;
    cursor: pointer;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.toast-close:hover {
    color: #374151;
}

/* 确认对话框样式 */
.confirm-dialog {
    display: none;
    position: fixed;
    z-index: 10001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
}

.confirm-dialog.show {
    display: flex;
}

.confirm-content {
    background: white;
    border-radius: 10px;
    padding: 30px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.3s;
}

.confirm-icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: 20px;
}

.confirm-title {
    font-size: 20px;
    font-weight: 600;
    color: #374151;
    text-align: center;
    margin-bottom: 15px;
}

.confirm-message {
    color: #6b7280;
    text-align: center;
    margin-bottom: 25px;
    line-height: 1.6;
}

.confirm-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.confirm-actions .btn {
    min-width: 100px;
}

/* 统计信息卡片样式 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.stat-label {
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 8px;
}

.stat-value {
    color: #111827;
    font-size: 28px;
    font-weight: 600;
}

.stat-card.primary .stat-value {
    color: #667eea;
}

.stat-card.success .stat-value {
    color: #10b981;
}

.stat-card.warning .stat-value {
    color: #f59e0b;
}

.stat-card.danger .stat-value {
    color: #ef4444;
}

/* 筛选和操作栏样式 */
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-group label {
    color: #374151;
    font-weight: 500;
    font-size: 14px;
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    min-width: 120px;
}

.filter-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}