:root {
  --brand: #0f766e; --brand-600: #0d9488; --brand-50: #f0fdfa; --brand-100: #ccfbf1;
  --bg: #f6f8fa; --panel: #ffffff; --panel-2: #f8fafc; --text: #0f172a; --muted: #64748b; --line: #e2e8f0;
  --danger: #dc2626; --danger-50: #fef2f2; --warn: #b45309; --warn-50: #fffbeb; --ok: #15803d; --ok-50: #f0fdf4;
  --info: #1d4ed8; --info-50: #eff6ff; --off: #e9eef4;
  --radius: 10px; --shadow: 0 1px 2px rgba(15,23,42,.06), 0 4px 16px rgba(15,23,42,.06);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --brand: #2dd4bf; --brand-600: #14b8a6; --brand-50: #0b2a28; --brand-100: #134e4a;
    --bg: #0b1120; --panel: #111827; --panel-2: #0f172a; --text: #e5e7eb; --muted: #94a3b8; --line: #1f2937;
    --danger: #f87171; --danger-50: #2a1215; --warn: #fbbf24; --warn-50: #2a2010; --ok: #4ade80; --ok-50: #0f2418;
    --info: #93c5fd; --info-50: #0f1d33; --off: #05080f; --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --brand: #2dd4bf; --brand-600: #14b8a6; --brand-50: #0b2a28; --brand-100: #134e4a;
  --bg: #0b1120; --panel: #111827; --panel-2: #0f172a; --text: #e5e7eb; --muted: #94a3b8; --line: #1f2937;
  --danger: #f87171; --danger-50: #2a1215; --warn: #fbbf24; --warn-50: #2a2010; --ok: #4ade80; --ok-50: #0f2418;
  --info: #93c5fd; --info-50: #0f1d33; --off: #05080f; --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 var(--font); }
a { color: var(--brand); }
h1, h2, h3, h4 { margin: 0 0 .5rem; line-height: 1.25; }
h1 { font-size: 1.4rem; } h2 { font-size: 1.15rem; } h3 { font-size: 1rem; } h4 { font-size: .9rem; }
.muted { color: var(--muted); } .small { font-size: 12px; } .nowrap { white-space: nowrap; }
.right { text-align: right; } .center { text-align: center; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; } .row.top { align-items: flex-start; }
.grow { flex: 1 1 auto; min-width: 0; }
.stack > * + * { margin-top: 12px; }
.grid { display: grid; gap: 12px; }
.grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.c4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 760px) { .grid.c2, .grid.c3, .grid.c4 { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.card.flat { box-shadow: none; }
.card h2, .card h3 { margin-bottom: 12px; }

/* forms */
label { display: block; font-weight: 600; font-size: 12.5px; margin-bottom: 4px; color: var(--text); }
label .muted { font-weight: 400; }
input, select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel);
  color: var(--text); font: inherit; min-height: 36px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand-100); border-color: var(--brand); }
textarea { min-height: 80px; resize: vertical; }
input[type=checkbox], input[type=radio] { width: auto; min-height: 0; accent-color: var(--brand); }
.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; font-size: 14px; }
.check input { margin-top: 3px; }
.field { margin-bottom: 12px; }
.hint { font-size: 12px; color: var(--muted); margin-top: 3px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 14px; min-height: 36px;
  border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--text); font: inherit;
  font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--panel-2); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
:root[data-theme="dark"] .btn.primary { color: #042f2e; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { color: #042f2e; } }
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--line)); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.sm { padding: 4px 10px; min-height: 28px; font-size: 12.5px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-group { display: inline-flex; }
.btn-group .btn { border-radius: 0; margin-left: -1px; }
.btn-group .btn:first-child { border-radius: 8px 0 0 8px; margin-left: 0; }
.btn-group .btn:last-child { border-radius: 0 8px 8px 0; }
.btn-group .btn.active { background: var(--brand-50); color: var(--brand); border-color: var(--brand); position: relative; z-index: 1; }

/* badges & alerts */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 999px; font-size: 11.5px;
  font-weight: 600; background: var(--panel-2); border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--ok-50); color: var(--ok); border-color: transparent; }
.badge.warn { background: var(--warn-50); color: var(--warn); border-color: transparent; }
.badge.danger { background: var(--danger-50); color: var(--danger); border-color: transparent; }
.badge.info { background: var(--info-50); color: var(--info); border-color: transparent; }
.badge.brand { background: var(--brand-50); color: var(--brand); border-color: transparent; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; }
.alert { padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); }
.alert.stop { background: var(--danger-50); color: var(--danger); border-color: transparent; }
.alert.caution { background: var(--warn-50); color: var(--warn); border-color: transparent; }
.alert.ok { background: var(--ok-50); color: var(--ok); border-color: transparent; }
.alert.info { background: var(--info-50); color: var(--info); border-color: transparent; }

/* tables */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
.table tr.click { cursor: pointer; }
.table tr.click:hover td { background: var(--panel-2); }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 16px; overflow-x: auto; }
.tabs button { background: none; border: 0; padding: 10px 12px; font: inherit; font-weight: 600; color: var(--muted);
  cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs button.active { color: var(--brand); border-bottom-color: var(--brand); }

/* toast */
#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 1000; display: flex;
  flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { background: var(--text); color: var(--panel); padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow);
  font-weight: 500; max-width: 90vw; }
.toast.error { background: var(--danger); color: #fff; }

/* modal & drawer */
.overlay { position: fixed; inset: 0; background: rgba(15,23,42,.45); z-index: 100; display: flex; align-items: flex-start;
  justify-content: center; padding: 5vh 16px; overflow-y: auto; }
.modal { background: var(--panel); border-radius: 14px; width: 100%; max-width: 620px; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.modal.wide { max-width: 880px; }
.modal header, .drawer header { padding: 16px 20px; border-bottom: 1px solid var(--line); display: flex;
  justify-content: space-between; align-items: center; gap: 12px; }
.modal header h2, .drawer header h2 { margin: 0; }
.modal .body { padding: 20px; }
.modal footer { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.drawer-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.35); z-index: 90; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(720px, 100vw); background: var(--panel); z-index: 91;
  box-shadow: -10px 0 40px rgba(0,0,0,.15); display: flex; flex-direction: column; }
.drawer .body { padding: 16px 20px 40px; overflow-y: auto; flex: 1; }
.x { background: none; border: 0; font-size: 22px; line-height: 1; cursor: pointer; color: var(--muted); padding: 4px 8px; }

/* misc */
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.empty { padding: 32px; text-align: center; color: var(--muted); }
.stat { padding: 14px 16px; }
.stat .v { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .l { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.bar { height: 8px; border-radius: 4px; background: var(--panel-2); overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--brand); }
.spinner { width: 18px; height: 18px; border: 2px solid var(--line); border-top-color: var(--brand); border-radius: 50%;
  animation: spin .8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
pre.msg { white-space: pre-wrap; font: 13px/1.5 var(--font); background: var(--panel-2); padding: 10px; border-radius: 8px; margin: 6px 0 0; }
@media print {
  .no-print, .sidebar, .topbar { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none; border: 0; }
}