/* 云上空地控制台 - 专业后台管理样式（浅色主题） */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

:root {
    /* 主色调 - 科技蓝 */
    --primary: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --primary-bg: #eef2ff;
    
    /* 功能色 */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #0ea5e9;
    --info-light: #e0f2fe;
    
    /* 中性色 - 浅色主题 */
    --bg-main: #f8fafc;
    --bg-sidebar: #ffffff;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;
    --border: #e2e8f0;
    --border-light: #cbd5e1;
    
    /* 文字色 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    
    /* 过渡 */
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== 布局 ===== */
.layout {
    display: flex;
    min-height: 100vh;
}

/* ===== 侧边栏 ===== */
.sidebar {
    width: 260px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.02);
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

.sidebar .brand {
    padding: 24px 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar .brand a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sidebar .brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
}

.sidebar nav {
    padding: 16px 12px;
    flex: 1;
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.sidebar nav a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar nav a.active {
    background: var(--primary-bg);
    color: var(--primary);
    border: 1px solid rgba(79, 70, 229, 0.15);
}

.sidebar .nav-divider {
    height: 1px;
    background: var(--border);
    margin: 12px 16px;
}

.sidebar .nav-section-title {
    padding: 8px 16px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

/* ===== 主内容区 ===== */
.main {
    flex: 1;
    margin-left: 260px;
    padding: 0;
    min-height: 100vh;
    background: var(--bg-main);
}

.top-bar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.top-bar h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}

#adminContent {
    padding: 24px 32px;
}

/* ===== 卡片 ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 24px;
    border: 1px solid var(--border);
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.card-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    font-family: inherit;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== 工具栏 ===== */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.toolbar-left {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 14px;
}

.search-box .form-input {
    padding-left: 40px;
    min-width: 280px;
}

/* ===== 表格 ===== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
}

thead {
    background: var(--bg-hover);
}

th {
    text-align: left;
    padding: 14px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

td {
    padding: 14px 16px;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: var(--bg-hover);
}

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

/* ===== 表格操作按钮 ===== */
.table-actions {
    display: flex;
    gap: 8px;
}

.edit-btn, .delete-btn {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

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

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

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

/* ===== 徽章 ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    white-space: nowrap;
}

.badge-active, .badge-success {
    background: var(--success-light);
    color: #059669;
}

.badge-disabled, .badge-error {
    background: var(--danger-light);
    color: #dc2626;
}

.badge-warning {
    background: var(--warning-light);
    color: #d97706;
}

.badge-info, .badge-viewer {
    background: var(--info-light);
    color: #0284c7;
}

.badge-admin {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.badge-operator {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

/* ===== 权限标签 ===== */
.permission-tag {
    display: inline-block;
    padding: 3px 8px;
    font-size: 12px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--radius-sm);
    margin-right: 4px;
    margin-bottom: 4px;
}

/* ===== 空状态 ===== */
.empty-state {
    text-align: center;
    padding: 48px 24px !important;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
}

/* ===== 弹窗 ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: var(--bg-hover);
}

/* ===== 表单 ===== */
.form-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-input, .form-select {
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}

.input-with-action {
    display: flex;
    gap: 10px;
    align-items: center;
}

.input-with-action .form-input {
    flex: 1;
}

/* 密码输入框 */
.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-input {
    padding-right: 40px;
    flex: 1;
}

.password-toggle {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: var(--text-primary);
}

/* ===== 提示卡片 ===== */
.tips-card {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--info-light);
    border-radius: var(--radius);
    margin-bottom: 24px;
    border: 1px solid rgba(14, 165, 233, 0.15);
}

.tips-icon {
    color: var(--info);
    font-size: 18px;
    flex-shrink: 0;
}

.tips-content {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 表单操作区 ===== */
.form-actions {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ===== 通知提示 ===== */
.notification {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 14px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 2000;
    transform: translateX(120%);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    background: var(--success);
    color: #fff;
}

.notification-error {
    background: var(--danger);
    color: #fff;
}

/* ===== 统计卡片 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

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

.stat-icon.green {
    background: var(--success-light);
    color: var(--success);
}

.stat-icon.orange {
    background: var(--warning-light);
    color: var(--warning);
}

.stat-icon.red {
    background: var(--danger-light);
    color: var(--danger);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: var(--transition);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main {
        margin-left: 0;
    }
    
    .top-bar, #adminContent {
        padding: 16px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 快速入口 ===== */
.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.quick-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-hover);
    border-radius: var(--radius);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
}

.quick-link:hover {
    background: var(--primary-bg);
    border-color: rgba(79, 70, 229, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.link-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
}

.quick-link:nth-child(2) .link-icon {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
}

.quick-link:nth-child(3) .link-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

.quick-link:nth-child(4) .link-icon {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
}

.quick-link:nth-child(5) .link-icon {
    background: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
}

.link-info {
    flex: 1;
    min-width: 0;
}

.link-info h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.link-info p {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===== 禁止访问 ===== */
.forbidden {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    color: var(--text-muted);
}

.forbidden i {
    font-size: 64px;
    margin-bottom: 24px;
    color: var(--border-light);
}

.forbidden h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.forbidden p {
    margin-bottom: 24px;
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    gap: 12px;
}

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