:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --ink: #111827;
  --ink-2: #4b5563;
  --ink-3: #9ca3af;
  --line: #e5e7eb;
  --line-2: #f1f2f4;
  --side: #0f172a;
  --side-ink: #cbd5e1;
  --accent: #2563eb;
  --accent-2: #1d4ed8;
  --accent-soft: #eff6ff;
  --ok: #059669; --ok-soft: #d1fae5;
  --warn: #d97706; --warn-soft: #fef3c7;
  --bad: #dc2626; --bad-soft: #fee2e2;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; letter-spacing: -0.01em; }
h1 { font-size: 22px; }
h2 { font-size: 16px; }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); font-weight: 600; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }

/* Layout */
.layout { display: grid; grid-template-columns: 228px 1fr; min-height: 100vh; }
.side { background: var(--side); color: var(--side-ink); padding: 18px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 20px; color: #fff; font-weight: 700; font-size: 15px; }
.brand img { display: block; height: 30px; width: auto; }
.brand span { font-size: 11px; font-weight: 700; letter-spacing: .12em; color: #94a3b8; border: 1px solid #334155; border-radius: 5px; padding: 1px 6px; }
.nav a { display: flex; align-items: center; gap: 10px; color: var(--side-ink); padding: 8px 10px; border-radius: 8px; font-weight: 500; margin-bottom: 2px; }
.nav a:hover { background: rgba(255,255,255,.06); text-decoration: none; color: #fff; }
.nav a.active { background: rgba(37,99,235,.22); color: #fff; }
.nav a .count { margin-left: auto; background: var(--bad); color: #fff; border-radius: 99px; font-size: 11px; padding: 0 7px; font-weight: 700; }
.nav svg { width: 17px; height: 17px; opacity: .8; flex: none; }
.side .foot { margin-top: auto; font-size: 12px; padding: 10px; color: #64748b; }
.side .foot button { background: none; border: 0; color: #94a3b8; cursor: pointer; padding: 0; font: inherit; }
.main { padding: 26px 32px 60px; min-width: 0; }
.head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; flex-wrap: wrap; }
.head .sub { color: var(--ink-2); font-size: 13px; }
.head .actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }

/* Cards */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.card > .card-h { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line-2); }
.card > .card-h .actions { margin-left: auto; display: flex; gap: 6px; }
.card > .card-b { padding: 16px 18px; }
.card + .card, .grid + .card, .card + .grid { margin-top: 16px; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 18px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; cursor: default; }
.kpi.click { cursor: pointer; }
.kpi.click:hover { border-color: var(--accent); }
.kpi b { display: block; font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.kpi span { color: var(--ink-2); font-size: 12.5px; }
.kpi.bad b { color: var(--bad); } .kpi.warn b { color: var(--warn); } .kpi.ok b { color: var(--ok); }

/* Tables */
.table-wrap { overflow-x: auto; }
table.t { width: 100%; border-collapse: collapse; }
.t th { text-align: left; font-size: 12px; font-weight: 600; color: var(--ink-2); padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; background: #fafafa; }
.t td { padding: 10px 12px; border-bottom: 1px solid var(--line-2); vertical-align: middle; }
.t tr:last-child td { border-bottom: 0; }
.t tr.row-link { cursor: pointer; }
.t tr.row-link:hover td { background: #fafbff; }
.t .name { font-weight: 600; }
.t .small { font-size: 12px; color: var(--ink-3); }
.t td.num, .t th.num { text-align: right; }
.kv { width: 100%; border-collapse: collapse; }
.kv th { text-align: left; width: 42%; font-weight: 500; color: var(--ink-2); padding: 6px 0; vertical-align: top; }
.kv td { padding: 6px 0; }

/* Pills & dots */
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 1px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; background: #eef0f3; color: var(--ink-2); white-space: nowrap; }
.pill.ok { background: var(--ok-soft); color: #065f46; }
.pill.warn { background: var(--warn-soft); color: #92400e; }
.pill.bad { background: var(--bad-soft); color: #991b1b; }
.pill.info { background: var(--accent-soft); color: var(--accent-2); }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--ink-3); flex: none; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.dot.bad { background: var(--bad); box-shadow: 0 0 0 3px var(--bad-soft); animation: pulse 1.6s infinite; }
.dot.warn { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-soft); }
@keyframes pulse { 50% { box-shadow: 0 0 0 6px rgba(220,38,38,.15); } }
.muted { color: var(--ink-3); }
.ok-t { color: var(--ok); } .bad-t { color: var(--bad); } .warn-t { color: var(--warn); }

/* Buttons & forms */
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 7px 13px; border-radius: 8px; font: inherit; font-weight: 600; font-size: 13px; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: #cbd0d8; background: #fafafa; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { color: var(--bad); }
.btn.danger:hover { border-color: var(--bad); background: var(--bad-soft); }
.btn.sm { padding: 4px 9px; font-size: 12px; }
.btn.ghost { border-color: transparent; background: transparent; }
.btn:disabled { opacity: .55; cursor: wait; }
.btn svg { width: 15px; height: 15px; }
label.f { display: block; margin-bottom: 12px; }
label.f > span { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 4px; }
label.f small { display: block; color: var(--ink-3); font-size: 12px; margin-top: 3px; }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=date], input[type=url], input[type=month], select, textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(37,99,235,.25); border-color: var(--accent); }
textarea { min-height: 80px; resize: vertical; }
.check { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; cursor: pointer; }
.row { display: flex; gap: 12px; } .row > * { flex: 1; }
.toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar input[type=text] { max-width: 260px; }
.bulkbar { position: sticky; bottom: 16px; margin-top: 12px; background: var(--side); color: #fff; border-radius: 10px; padding: 10px 14px; display: flex; gap: 8px; align-items: center; box-shadow: 0 10px 30px rgba(15,23,42,.25); flex-wrap: wrap; }
.bulkbar .btn { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.12); color: #fff; }
.bulkbar .btn:hover { background: rgba(255,255,255,.16); }

/* Tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; }
.tabs a { padding: 9px 14px; color: var(--ink-2); font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a:hover { color: var(--ink); text-decoration: none; }
.tabs a.active { color: var(--accent); border-color: var(--accent); }
.tabs a .pill { margin-left: 4px; }

/* Checks list */
.checks { list-style: none; margin: 0; padding: 0; }
.checks li { display: grid; grid-template-columns: 22px 1fr; gap: 8px; padding: 10px 0; border-bottom: 1px solid var(--line-2); }
.checks li:last-child { border-bottom: 0; }
.checks .ic { width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 800; color: #fff; margin-top: 1px; }
.checks .ic.ok { background: var(--ok); } .checks .ic.warn { background: var(--warn); } .checks .ic.bad { background: var(--bad); }
.checks .d { color: var(--ink-2); font-size: 13px; word-break: break-word; }

/* Events */
.events { list-style: none; margin: 0; padding: 0; }
.events li { display: grid; grid-template-columns: 10px 1fr auto; gap: 10px; align-items: baseline; padding: 8px 0; border-bottom: 1px solid var(--line-2); font-size: 13px; }
.events li:last-child { border-bottom: 0; }
.events .lv { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); }
.events .lv.error { background: var(--bad); } .events .lv.warning { background: var(--warn); } .events .lv.success { background: var(--ok); } .events .lv.info { background: var(--accent); }
.events time { color: var(--ink-3); font-size: 12px; white-space: nowrap; }

/* Uptime bars */
.bars { display: flex; gap: 2px; align-items: flex-end; height: 34px; }
.bars i { flex: 1; min-width: 3px; border-radius: 2px; background: var(--ok); height: 100%; }
.bars i.warn { background: var(--warn); } .bars i.bad { background: var(--bad); } .bars i.none { background: var(--line); }
.spark { width: 100%; height: 120px; }
.score { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 20px; border: 5px solid var(--line); }
.score.ok { border-color: var(--ok); color: var(--ok); } .score.warn { border-color: var(--warn); color: var(--warn); } .score.bad { border-color: var(--bad); color: var(--bad); }
.scores { display: flex; gap: 22px; flex-wrap: wrap; }
.scores > div { text-align: center; font-size: 12px; color: var(--ink-2); }
.scores .score { margin: 0 auto 6px; }

/* Modal & toast */
.modal-bg { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: grid; place-items: center; z-index: 50; padding: 20px; animation: fade .12s; }
.modal { background: #fff; border-radius: 12px; width: 100%; max-width: 560px; max-height: 92vh; overflow: auto; box-shadow: 0 25px 60px rgba(0,0,0,.25); }
.modal .mh { padding: 16px 20px; border-bottom: 1px solid var(--line-2); display: flex; align-items: center; }
.modal .mh button { margin-left: auto; }
.modal .mb { padding: 18px 20px; }
.modal .mf { padding: 12px 20px; border-top: 1px solid var(--line-2); display: flex; justify-content: flex-end; gap: 8px; }
@keyframes fade { from { opacity: 0; } }
#toasts { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast { background: var(--side); color: #fff; padding: 10px 14px; border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.2); max-width: 380px; font-size: 13px; animation: fade .15s; }
.toast.error { background: var(--bad); } .toast.success { background: #047857; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; background: radial-gradient(1200px 600px at 20% 0%, #1e3a8a 0%, var(--side) 60%); }
.login form { background: #fff; padding: 30px; border-radius: 14px; width: 360px; box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.login h1 { margin-bottom: 4px; }
.login p { color: var(--ink-2); margin: 0 0 20px; }

.empty { text-align: center; padding: 50px 20px; color: var(--ink-2); }
.empty h2 { margin-bottom: 6px; color: var(--ink); }
.steps { margin: 0; padding-left: 20px; color: var(--ink-2); } .steps li { margin-bottom: 6px; }
.spinner { display: inline-block; width: 13px; height: 13px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.busy-banner { background: var(--accent-soft); color: var(--accent-2); border: 1px solid #bfdbfe; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-weight: 600; }
.err-banner { background: var(--bad-soft); color: #991b1b; border: 1px solid #fecaca; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 10px; }
  .brand { padding: 0 10px 0 4px; }
  .nav { display: flex; flex-wrap: wrap; } .side .foot { display: none; }
  .main { padding: 18px 14px 60px; }
  .g2, .g3 { grid-template-columns: 1fr; }
}
.grid > .card { margin-top: 0; }
#bulk + .card { margin-top: 16px; }