:root {
  --bg: #f4f5f7; --surface: #ffffff; --surface-2: #f8f9fb; --text: #1a1d23; --muted: #6b7280;
  --border: #e2e5ea; --accent: #f38020; --accent-2: #2563eb; --accent-text: #fff;
  --ok: #16a34a; --bad: #dc2626; --warn: #d97706; --info: #2563eb;
  --ok-bg: #dcfce7; --bad-bg: #fee2e2; --warn-bg: #fef3c7; --info-bg: #dbeafe;
  --input: #fff; --shadow: 0 1px 2px rgba(0,0,0,.05), 0 2px 8px rgba(0,0,0,.04);
  --sidebar: #1d2129; --sidebar-text: #c9ced6; --sidebar-active: #2b313c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1015; --surface: #161920; --surface-2: #1b1f27; --text: #e5e7eb; --muted: #9aa3af;
    --border: #2a2f39; --input: #0f1218; --shadow: none;
    --ok-bg: #12301f; --bad-bg: #3a1616; --warn-bg: #3a2a10; --info-bg: #142640;
    --sidebar: #0b0d11; --sidebar-active: #1d222b;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1015; --surface: #161920; --surface-2: #1b1f27; --text: #e5e7eb; --muted: #9aa3af;
  --border: #2a2f39; --input: #0f1218; --shadow: none;
  --ok-bg: #12301f; --bad-bg: #3a1616; --warn-bg: #3a2a10; --info-bg: #142640;
  --sidebar: #0b0d11; --sidebar-active: #1d222b;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
[hidden] { display: none !important; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font: 12.5px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0 0 8px; }

/* layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; flex: none; background: var(--sidebar); color: var(--sidebar-text); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.brand { font-weight: 700; font-size: 16px; padding: 18px 18px 14px; color: #fff; display: flex; align-items: center; gap: 8px; }
.brand-lg { font-size: 20px; color: var(--text); padding: 0 0 8px; justify-content: center; }
.logo { color: var(--accent); }
#nav { display: flex; flex-direction: column; padding: 4px 8px; gap: 2px; flex: 1; }
#nav a { color: var(--sidebar-text); padding: 8px 12px; border-radius: 6px; }
#nav a:hover { background: var(--sidebar-active); text-decoration: none; color: #fff; }
#nav a.active { background: var(--sidebar-active); color: #fff; box-shadow: inset 3px 0 0 var(--accent); }
.side-foot { padding: 12px 16px 16px; border-top: 1px solid rgba(255,255,255,.08); display: grid; gap: 8px; }
.side-foot .btn { background: transparent; color: var(--sidebar-text); border-color: rgba(255,255,255,.15); }
.main { flex: 1; min-width: 0; }
.topbar { display: flex; align-items: center; gap: 12px; padding: 16px 24px; flex-wrap: wrap; }
.topbar h1 { font-size: 20px; margin: 0; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#view { padding: 0 24px 40px; }
.burger { display: none; }

@media (max-width: 860px) {
  .sidebar { position: fixed; left: 0; z-index: 30; transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: none; box-shadow: 0 0 40px rgba(0,0,0,.4); }
  .burger { display: inline-flex; }
  .topbar { padding: 12px 16px; }
  #view { padding: 0 16px 32px; }
}

/* components */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); }
.card.pad { padding: 16px; }
.card + .card, .card + .grid, .grid + .card, .grid + .grid { margin-top: 16px; }
.grid { display: grid; gap: 16px; }
.grid.kpi { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.kpi .card { padding: 14px 16px; }
.kpi .v { font-size: 24px; font-weight: 650; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .l { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.kpi .s { font-size: 12px; color: var(--muted); margin-top: 2px; }

.btn { font: inherit; cursor: pointer; border-radius: 7px; border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: 7px 14px; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger { color: var(--bad); }
.btn.sm { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }
.row-gap { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.err { color: var(--bad); font-size: 13px; min-height: 1em; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.break { word-break: break-all; }

input[type=text], input[type=password], input[type=number], input[type=url], input:not([type]), select, textarea {
  font: inherit; padding: 7px 10px; border-radius: 7px; border: 1px solid var(--border); background: var(--input); color: var(--text); width: 100%;
}
textarea { resize: vertical; min-height: 120px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-2); outline-offset: -1px; }
label.f { display: grid; gap: 5px; font-size: 13px; font-weight: 550; }
label.f .hint, .hint { color: var(--muted); font-weight: 400; font-size: 12px; }
label.cb { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; cursor: pointer; }
label.cb input { margin-top: 3px; }
label.cb .hint { display: block; }
.form { display: grid; gap: 14px; }
.form-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }

/* table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 11.5px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; background: var(--surface-2); }
tbody tr:hover { background: var(--surface-2); }
tr:last-child td { border-bottom: none; }
td.chk, th.chk { width: 32px; }
.empty { padding: 40px 16px; text-align: center; color: var(--muted); }
.dname { font-weight: 600; color: var(--text); }

.badge { display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 99px; font-size: 12px; font-weight: 500; white-space: nowrap; background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.badge.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.badge.bad { background: var(--bad-bg); color: var(--bad); border-color: transparent; }
.badge.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.badge.info { background: var(--info-bg); color: var(--info); border-color: transparent; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); } .dot.bad { background: var(--bad); } .dot.warn { background: var(--warn); }
.tag { display: inline-block; font-size: 11.5px; padding: 1px 7px; margin: 1px 2px 1px 0; border-radius: 4px; background: var(--info-bg); color: var(--info); cursor: pointer; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding: 12px; border-bottom: 1px solid var(--border); }
.toolbar input, .toolbar select { width: auto; min-width: 140px; }
.toolbar .search { flex: 1; min-width: 180px; }
.bulkbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding: 10px 12px; background: var(--info-bg); border-bottom: 1px solid var(--border); }

/* switch */
.switch { position: relative; width: 36px; height: 20px; display: inline-block; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.switch span { position: absolute; inset: 0; background: var(--border); border-radius: 99px; transition: .15s; cursor: pointer; }
.switch span::before { content: ""; position: absolute; width: 14px; height: 14px; left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .15s; }
.switch input:checked + span { background: var(--ok); }
.switch input:checked + span::before { transform: translateX(16px); }

/* tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tabs button { background: none; border: none; font: inherit; color: var(--muted); padding: 10px 14px; cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

/* segmented */
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg label { border: 1px solid var(--border); border-radius: 7px; padding: 8px 12px; cursor: pointer; display: grid; gap: 2px; min-width: 110px; background: var(--surface); }
.seg label input { display: none; }
.seg label:has(input:checked) { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.seg label b { font-size: 13px; }
.seg label span { font-size: 11.5px; color: var(--muted); }

/* code box */
.codebox { display: flex; gap: 8px; align-items: stretch; }
.codebox code { flex: 1; background: var(--surface-2); border: 1px solid var(--border); border-radius: 7px; padding: 8px 10px; overflow-x: auto; white-space: nowrap; }

/* chart */
.chart { width: 100%; height: 160px; display: block; }
.chart .bar-req { fill: var(--accent-2); }
.chart .bar-blk { fill: var(--bad); }
.chart .bar-ok { fill: var(--ok); }
.chart .bar-bad { fill: var(--bad); }
.chart .axis { fill: var(--muted); font-size: 10px; }
.chart .grid-line { stroke: var(--border); }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.legend .l-req { background: var(--accent-2); } .legend .l-blk { background: var(--bad); }

/* preview */
.preview { max-height: 320px; overflow: auto; }
.preview li { padding: 3px 0; }
ul.plain { list-style: none; margin: 0; padding: 0; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }

/* login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(360px, 100%); padding: 28px; display: grid; gap: 14px; }

/* modal & toasts */
.modal { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); padding: 0; width: min(560px, calc(100% - 32px)); max-height: calc(100vh - 32px); }
.modal::backdrop { background: rgba(0,0,0,.5); }
.modal .mbody { padding: 20px; display: grid; gap: 14px; }
.modal h2 { margin: 0; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: grid; gap: 8px; z-index: 100; max-width: calc(100% - 32px); }
.toast { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--ok); border-radius: 8px; padding: 10px 14px; box-shadow: 0 6px 24px rgba(0,0,0,.15); max-width: 420px; }
.toast.bad { border-left-color: var(--bad); }

@media (max-width: 600px) {
  .hide-sm { display: none; }
  th, td { padding: 8px; }
  .toolbar input, .toolbar select { min-width: 0; flex: 1 1 140px; }
}