:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --panel-2: #f8f9fb;
  --border: #e3e6eb;
  --border-strong: #cfd4dc;
  --text: #1c2330;
  --text-2: #5a6474;
  --text-3: #8a93a3;
  --accent: #3b5bdb;
  --accent-2: #eef1fd;
  --accent-text: #ffffff;
  --ok: #2f9e44;
  --ok-bg: #ebf7ee;
  --warn: #c77700;
  --warn-bg: #fff6e5;
  --bad: #d6336c;
  --bad-bg: #fdeef3;
  --info: #1c7ed6;
  --info-bg: #e8f3fd;
  --muted-bg: #eef0f3;
  --nav-bg: #161b26;
  --nav-text: #b7bfcc;
  --nav-active: #ffffff;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, .18);
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f131a; --panel: #171c25; --panel-2: #1c222d; --border: #272e3a; --border-strong: #353d4b;
    --text: #e6e9ef; --text-2: #a3acba; --text-3: #737d8c; --accent: #6f8cff; --accent-2: #1e2741;
    --ok: #51cf66; --ok-bg: #16281c; --warn: #fcc419; --warn-bg: #2b2412; --bad: #ff6b9a; --bad-bg: #2e1822;
    --info: #4dabf7; --info-bg: #142636; --muted-bg: #232a35; --nav-bg: #0b0e13;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4); --shadow-lg: 0 12px 32px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f131a; --panel: #171c25; --panel-2: #1c222d; --border: #272e3a; --border-strong: #353d4b;
  --text: #e6e9ef; --text-2: #a3acba; --text-3: #737d8c; --accent: #6f8cff; --accent-2: #1e2741;
  --ok: #51cf66; --ok-bg: #16281c; --warn: #fcc419; --warn-bg: #2b2412; --bad: #ff6b9a; --bad-bg: #2e1822;
  --info: #4dabf7; --info-bg: #142636; --muted-bg: #232a35; --nav-bg: #0b0e13;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4); --shadow-lg: 0 12px 32px rgba(0, 0, 0, .6);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); font-size: 12.5px; }
h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 20px; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
.hidden { display: none !important; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 216px; flex-shrink: 0; background: var(--nav-bg); color: var(--nav-text);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.brand { padding: 20px 20px 16px; color: #fff; font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, #5c7cfa, #3b5bdb); display: grid; place-items: center; font-size: 15px; }
.nav { padding: 6px 10px; flex: 1; overflow-y: auto; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: 7px;
  color: var(--nav-text); margin-bottom: 2px; font-size: 13.5px;
}
.nav a:hover { background: rgba(255, 255, 255, .06); text-decoration: none; color: #fff; }
.nav a.active { background: rgba(92, 124, 250, .22); color: var(--nav-active); }
.nav .ico { width: 18px; text-align: center; opacity: .9; }
.nav-foot { padding: 14px 20px; font-size: 12px; border-top: 1px solid rgba(255, 255, 255, .07); display: flex; flex-direction: column; gap: 6px; }
.nav-foot button { background: none; border: 0; color: var(--nav-text); padding: 0; cursor: pointer; text-align: left; font: inherit; }
.nav-foot button:hover { color: #fff; }

.main { flex: 1; min-width: 0; padding: 24px 28px 48px; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head .sub { color: var(--text-2); font-size: 13px; margin-top: 2px; }
.topbar { display: none; }

@media (max-width: 860px) {
  .sidebar { position: fixed; left: -240px; z-index: 50; transition: left .2s; width: 230px; }
  .sidebar.open { left: 0; box-shadow: var(--shadow-lg); }
  .topbar {
    display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--nav-bg); color: #fff;
    position: sticky; top: 0; z-index: 40;
  }
  .topbar button { background: none; border: 0; color: #fff; font-size: 20px; padding: 0 4px; cursor: pointer; }
  .layout { flex-direction: column; }
  .main { padding: 16px 16px 40px; }
}

/* ---------- 卡片、栅格 ---------- */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.card-body { padding: 16px; }
.card + .card, .card + .grid, .grid + .card, .grid + .grid { margin-top: 16px; }
.grid { display: grid; gap: 16px; }
.grid > .card, .grid > div > .card:first-child { margin-top: 0; }
.grid.tiles { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.grid.two { grid-template-columns: 1.4fr 1fr; }
.grid.servers { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
@media (max-width: 1100px) { .grid.two { grid-template-columns: 1fr; } }

.tile { padding: 16px 18px; }
.tile .label { color: var(--text-2); font-size: 12.5px; }
.tile .value { font-size: 26px; font-weight: 600; margin-top: 4px; font-variant-numeric: tabular-nums; }
.tile .value small { font-size: 14px; color: var(--text-3); font-weight: 500; }
.tile .hint { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.tile.bad .value { color: var(--bad); }
.tile.ok .value { color: var(--ok); }

/* ---------- 表单控件 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 32px; padding: 0 12px;
  border-radius: 7px; border: 1px solid var(--border-strong); background: var(--panel); color: var(--text);
  font: inherit; font-size: 13px; cursor: pointer; white-space: nowrap; transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--panel-2); border-color: var(--text-3); text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--bad); }
.btn.danger.solid { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.sm { height: 26px; padding: 0 8px; font-size: 12px; border-radius: 6px; }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--muted-bg); }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

input[type=text], input[type=password], input[type=number], input:not([type]), select, textarea {
  width: 100%; height: 34px; padding: 0 10px; border: 1px solid var(--border-strong); border-radius: 7px;
  background: var(--panel); color: var(--text); font: inherit; font-size: 13.5px; outline: none;
}
textarea { height: auto; padding: 8px 10px; font-family: var(--mono); font-size: 12.5px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-2); }
label.field { display: block; margin-bottom: 14px; }
label.field > span, .field-label { display: block; font-size: 12.5px; color: var(--text-2); margin-bottom: 5px; font-weight: 500; }
.field .help { font-size: 12px; color: var(--text-3); margin-top: 4px; }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; min-width: 0; }
@media (max-width: 600px) { .row { flex-direction: column; gap: 0; } }
.input-group { display: flex; gap: 6px; }
.input-group input { flex: 1; }
.check { display: flex; align-items: center; gap: 8px; font-size: 13.5px; cursor: pointer; margin-bottom: 10px; }
.check input { width: 15px; height: 15px; margin: 0; }
.seg { display: inline-flex; border: 1px solid var(--border-strong); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; background: var(--panel); color: var(--text-2); padding: 6px 14px; font: inherit; font-size: 13px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border-strong); }
.seg button.on { background: var(--accent); color: #fff; }
.choice { display: grid; gap: 8px; }
.choice label { display: flex; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; align-items: flex-start; }
.choice label:hover { border-color: var(--border-strong); }
.choice input { margin-top: 3px; }
.choice label.on { border-color: var(--accent); background: var(--accent-2); }
.choice b { display: block; font-weight: 600; font-size: 13.5px; }
.choice small { color: var(--text-2); font-size: 12px; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; }
.tbl th { text-align: left; font-size: 12px; font-weight: 600; color: var(--text-2); padding: 9px 12px; border-bottom: 1px solid var(--border); background: var(--panel-2); white-space: nowrap; }
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl tr:hover td { background: var(--panel-2); }
.tbl .primary-cell { font-weight: 500; word-break: break-all; }
.tbl .sub { color: var(--text-3); font-size: 12px; word-break: break-all; }
.tbl td.actions { text-align: right; white-space: nowrap; }
@media (max-width: 860px) {
  table.tbl.responsive thead { display: none; }
  table.tbl.responsive tr { display: block; border-bottom: 1px solid var(--border); padding: 8px 4px; }
  table.tbl.responsive td { display: flex; justify-content: space-between; gap: 12px; border: 0; padding: 4px 10px; text-align: right; }
  table.tbl.responsive td::before { content: attr(data-label); color: var(--text-3); font-size: 12px; text-align: left; flex-shrink: 0; }
  table.tbl.responsive td.actions { justify-content: flex-end; flex-wrap: wrap; }
  table.tbl.responsive td.actions::before { content: none; }
  .tbl .primary-cell, .tbl .sub { text-align: right; }
}

/* ---------- 徽章 / 状态 ---------- */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 500; white-space: nowrap; line-height: 20px; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.info { background: var(--info-bg); color: var(--info); }
.badge.muted { background: var(--muted-bg); color: var(--text-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-bg); }
.dot.bad { background: var(--bad); box-shadow: 0 0 0 3px var(--bad-bg); }
.dot.muted { background: var(--text-3); }
.spin { display: inline-block; width: 10px; height: 10px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 服务器卡片 ---------- */
.srv-card { padding: 16px; display: flex; flex-direction: column; gap: 12px; cursor: pointer; transition: border-color .12s, transform .12s; }
.srv-card:hover { border-color: var(--accent); }
.srv-card .top { display: flex; align-items: center; gap: 10px; }
.srv-card .name { font-weight: 600; font-size: 15px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.srv-card .meta { color: var(--text-3); font-size: 12px; }
.srv-card .counts { display: flex; gap: 14px; font-size: 12.5px; color: var(--text-2); flex-wrap: wrap; }
.srv-card .counts b { color: var(--text); font-variant-numeric: tabular-nums; }
.meter { height: 6px; border-radius: 3px; background: var(--muted-bg); overflow: hidden; }
.meter > i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
.meter.warn > i { background: var(--warn); }
.meter.bad > i { background: var(--bad); }
.meter-label { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-3); margin-bottom: 4px; }

/* ---------- 图表 ---------- */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 140px; padding-top: 8px; }
.bars .col { flex: 1; display: flex; flex-direction: column; align-items: stretch; height: 100%; justify-content: flex-end; min-width: 0; position: relative; }
.bars .stack { display: flex; flex-direction: column-reverse; border-radius: 3px 3px 0 0; overflow: hidden; }
.bars .seg-ok { background: var(--ok); }
.bars .seg-nc { background: color-mix(in srgb, var(--ok) 35%, var(--muted-bg)); }
.bars .seg-bad { background: var(--bad); }
.bars .lbl { font-size: 10.5px; color: var(--text-3); text-align: center; margin-top: 4px; white-space: nowrap; }
.bars .col:hover .tip { display: block; }
.bars .tip { display: none; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); font-size: 11.5px; padding: 6px 8px; border-radius: 6px; white-space: nowrap; z-index: 5; margin-bottom: 4px; }
/* 两端的柱子提示框向内对齐，避免在窄屏上超出屏幕边缘 */
.bars .col:nth-child(-n+3) .tip { left: 0; transform: none; }
.bars .col:nth-last-child(-n+3) .tip { left: auto; right: 0; transform: none; }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--text-2); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }

/* ---------- 列表 ---------- */
.list { display: flex; flex-direction: column; }
.list-item { display: flex; gap: 12px; align-items: flex-start; padding: 11px 16px; border-bottom: 1px solid var(--border); }
.list-item:last-child { border-bottom: 0; }
.list-item .grow { flex: 1; min-width: 0; }
.list-item .title { font-weight: 500; word-break: break-all; }
.list-item .desc { font-size: 12.5px; color: var(--text-2); word-break: break-all; }
.empty { padding: 36px 16px; text-align: center; color: var(--text-3); }
.empty .big { font-size: 28px; margin-bottom: 6px; }

/* ---------- 弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(10, 14, 22, .5); z-index: 100; display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px 16px; overflow-y: auto; }
.modal { background: var(--panel); border-radius: 12px; box-shadow: var(--shadow-lg); width: 100%; max-width: 560px; display: flex; flex-direction: column; max-height: 88vh; }
.modal.wide { max-width: 900px; }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.modal-head h2 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.modal-body { padding: 18px 20px; overflow-y: auto; }
.modal-foot { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.x-btn { background: none; border: 0; font-size: 20px; color: var(--text-3); cursor: pointer; line-height: 1; padding: 2px 6px; }

.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 200; display: flex; flex-direction: column; gap: 8px; max-width: min(420px, calc(100vw - 40px)); }
.toast { background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 8px; box-shadow: var(--shadow-lg); font-size: 13px; word-break: break-word; animation: tin .18s ease-out; }
.toast.bad { background: var(--bad); color: #fff; }
.toast.ok { background: var(--ok); color: #fff; }
@keyframes tin { from { transform: translateY(8px); opacity: 0; } }

/* ---------- 日志 / 代码 ---------- */
.log {
  background: #0d1117; color: #c9d1d9; font-family: var(--mono); font-size: 12px; line-height: 1.6;
  padding: 12px 14px; border-radius: 8px; height: 56vh; overflow: auto; white-space: pre-wrap; word-break: break-all; margin: 0;
}
.log .l-err { color: #ff7b72; }
.log .l-ok { color: #7ee787; }
.log .l-head { color: #79c0ff; }
.log .l-warn { color: #e3b341; }
.codebox { display: flex; gap: 8px; align-items: stretch; }
.codebox code { flex: 1; background: var(--panel-2); border: 1px solid var(--border); border-radius: 7px; padding: 9px 11px; word-break: break-all; font-size: 12.5px; }

/* ---------- 标签页 ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tabs a { padding: 9px 14px; color: var(--text-2); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.on { color: var(--accent); border-bottom-color: var(--accent); font-weight: 500; }

/* ---------- 文件浏览 ---------- */
.browser { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; padding: 8px 10px; background: var(--panel-2); border-bottom: 1px solid var(--border); font-size: 13px; }
.crumbs a { padding: 1px 5px; border-radius: 4px; }
.crumbs span { color: var(--text-3); }
.browser-list { max-height: 360px; overflow-y: auto; }
.browser-item { display: flex; align-items: center; gap: 10px; padding: 7px 12px; border-bottom: 1px solid var(--border); cursor: pointer; font-size: 13px; }
.browser-item:last-child { border-bottom: 0; }
.browser-item:hover { background: var(--panel-2); }
.browser-item.sel { background: var(--accent-2); }
.browser-item.dim { color: var(--text-3); cursor: default; }
.browser-item .nm { flex: 1; min-width: 0; word-break: break-all; }
.browser-item .sz { color: var(--text-3); font-size: 12px; white-space: nowrap; font-variant-numeric: tabular-nums; }

.kv { display: grid; grid-template-columns: 120px 1fr; gap: 8px 14px; font-size: 13px; }
.kv dt { color: var(--text-2); }
.kv dd { margin: 0; word-break: break-all; }

.notice { padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 14px; border: 1px solid transparent; }
.notice.warn { background: var(--warn-bg); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 25%, transparent); }
.notice.bad { background: var(--bad-bg); color: var(--bad); }
.notice.info { background: var(--info-bg); color: var(--info); }
.notice.ok { background: var(--ok-bg); color: var(--ok); }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar input:not([type=checkbox]), .toolbar select { width: auto; min-width: 140px; height: 32px; }
.toolbar .grow { flex: 1; }

.menu { position: relative; display: inline-block; }
/* 位置由 openMenu() 按触发按钮计算；层级在弹窗遮罩（100）之下、提示（200）之下 */
.menu-pop { position: fixed; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow-lg); min-width: 150px; max-height: calc(100vh - 16px); overflow-y: auto; z-index: 90; padding: 4px; text-align: left; }
.menu-pop button { display: block; width: 100%; border: 0; background: none; text-align: left; padding: 7px 10px; border-radius: 5px; font: inherit; font-size: 13px; color: var(--text); cursor: pointer; }
.menu-pop button:hover { background: var(--panel-2); }
.menu-pop button.danger { color: var(--bad); }
.menu-pop hr { border: 0; border-top: 1px solid var(--border); margin: 4px 0; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { width: 100%; max-width: 360px; padding: 28px; }
.login h1 { text-align: center; margin-bottom: 4px; }
.login .sub { text-align: center; color: var(--text-2); font-size: 13px; margin-bottom: 22px; }

.muted { color: var(--text-3); }
.text-2 { color: var(--text-2); }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.mt { margin-top: 16px; }
.mb { margin-bottom: 16px; }
.gap-s { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.break { word-break: break-all; }
.section-title { font-size: 12px; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .04em; margin: 18px 0 10px; }
.matrix td.cell { text-align: center; }