/* ── 全局变量 & 重置 ─────────────────────────────────────────── */
:root {
    --bg: #f0f2f5;
    --sidebar-bg: #1e2a38;
    --sidebar-hover: #2a3a4e;
    --sidebar-active: #3b82f6;
    --card-bg: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border: #e5e7eb;
    --accent: #3b82f6;
    --accent-light: #eff6ff;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --success: #22c55e;
    --success-light: #f0fdf4;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

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

/* ── 侧边栏 ─────────────────────────────────────────────────── */
.sidebar {
    width: 220px;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0; bottom: 0; left: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.logo { font-size: 24px; }

.logo-text {
    color: #fff;
    font-weight: 700;
    font-size: 16px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: rgba(255,255,255,.7);
    text-decoration: none;
    transition: background .15s, color .15s;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: #fff;
}

.nav-item.active {
    background: var(--sidebar-active);
    color: #fff;
}

.nav-icon { font-size: 16px; }
.nav-label { font-size: 14px; font-weight: 500; }

.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid rgba(255,255,255,.08);
}

.bot-info { color: rgba(255,255,255,.35); font-size: 12px; }

/* ── 主内容区 ────────────────────────────────────────────────── */
.content {
    margin-left: 220px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content-header {
    background: var(--card-bg);
    padding: 16px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 10;
}

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

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

.content-body { padding: 24px 28px; flex: 1; }

/* ── 统计卡片 ─────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.stat-card-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card-sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ── 表格 ─────────────────────────────────────────────────────── */
.table-wrap {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

.table-toolbar {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.table-toolbar-left { display: flex; align-items: center; gap: 10px; }
.table-toolbar-right { display: flex; align-items: center; gap: 8px; }

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

thead tr {
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
}

thead th {
    text-align: left;
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .5px;
    white-space: nowrap;
}

tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

td { padding: 12px 14px; vertical-align: middle; }

.col-num { width: 48px; text-align: center; color: var(--text-secondary); font-size: 12px; }

/* ── 搜索框 ───────────────────────────────────────────────────── */
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    gap: 6px;
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 13px;
    color: var(--text-primary);
    width: 180px;
}

/* ── 按钮 ────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .15s, border-color .15s, color .15s;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover { background: #2563eb; }

.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}
.btn-danger:hover { background: #dc2626; }

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

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 5px 8px; }

/* ── 状态标签 ────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 99px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .4px;
}

.badge-ok    { background: var(--success-light); color: var(--success); }
.badge-pause { background: var(--warning-light); color: var(--warning); }
.badge-error { background: var(--danger-light);  color: var(--danger);  }
.badge-zero  { background: var(--danger-light);  color: var(--danger);  }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger  { background: var(--danger-light);  color: var(--danger);  }

/* ── 权限标签 ───────────────────────────────────────────────────── */
.perm-chip {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}
.perm-chip.on  { background: var(--success-light); color: var(--success); }
.perm-chip.off { background: var(--bg-soft);       color: var(--muted);   }

/* ── 空状态 ───────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state-icon { font-size: 40px; margin-bottom: 12px; }
.empty-state-text { font-size: 14px; }

/* ── 加载动画 ─────────────────────────────────────────────────── */
.loading-row td { text-align: center; color: var(--text-secondary); padding: 24px; }
.spinner {
    display: inline-block;
    width: 16px; height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .7s linear infinite;
    vertical-align: middle;
}

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

/* ── 弹窗 / Modal ───────────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

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

.modal {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 20px 40px rgba(0,0,0,.2);
    width: 480px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-header {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title { font-size: 16px; font-weight: 600; }

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    line-height: 1;
}
.modal-close:hover { color: var(--text-primary); }

.modal-body { padding: 20px; }

.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ── 表单 ─────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    transition: border-color .15s;
    background: var(--card-bg);
    color: var(--text-primary);
}

.form-control:focus { border-color: var(--accent); }

select.form-control { cursor: pointer; }

.form-hint { font-size: 11px; color: var(--text-secondary); margin-top: 3px; }

/* ── Toast 提示 ───────────────────────────────────────────────── */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 10px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--shadow);
    animation: slideIn .2s ease-out;
    max-width: 300px;
}

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

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

/* ── 分页 ────────────────────────────────────────────────────── */
.pagination { display: flex; gap: 4px; justify-content: flex-end; padding: 12px 16px; }

/* ── 详情头部 ────────────────────────────────────────────────── */
.detail-header {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 20px 24px;
    margin-bottom: 20px;
}

.detail-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.detail-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.detail-meta-item { font-size: 13px; color: var(--text-secondary); }
.detail-meta-item strong { color: var(--text-primary); }

/* ── 图表区 ───────────────────────────────────────────────────── */
.chart-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 20px;
    margin-bottom: 20px;
}

.chart-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* ── 辅助 ─────────────────────────────────────────────────────── */
.text-muted { color: var(--text-secondary); font-size: 12px; }
.text-sm    { font-size: 12px; }
.text-right { text-align: right; }
.font-mono  { font-family: "Fira Code", "Consolas", monospace; }

/* ── 侧边栏退出 ───────────────────────────────────────────────── */
.logout-link {
    display: inline-block;
    margin-top: 8px;
    color: rgba(255,255,255,.45);
    font-size: 12px;
    text-decoration: none;
}
.logout-link:hover { color: #fff; }

/* ── 登录页 ───────────────────────────────────────────────────── */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #1e2a38 0%, #2a3a4e 50%, #1e2a38 100%);
}

.login-wrap {
    width: 100%;
    max-width: 400px;
    padding: 24px;
}

.login-card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,.25);
    padding: 36px 32px 32px;
}

.login-brand {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo { font-size: 40px; line-height: 1; margin-bottom: 10px; }

.login-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.login-sub {
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.login-alert {
    padding: 10px 12px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 18px;
    line-height: 1.4;
}

.login-alert-warn {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.login-alert-danger {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.login-form .form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}

.login-form .form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

.login-form .form-input:disabled {
    background: #f9fafb;
    color: var(--text-secondary);
    cursor: not-allowed;
}

.login-btn {
    width: 100%;
    margin-top: 8px;
    padding: 11px 16px;
    font-size: 15px;
    font-weight: 600;
}

.login-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
}