/* VAGON · пульс — лента кардиограммы: бумага, чернила, красный только для сбоев. */
:root {
  --ground: #fbf6f4;
  --sheet: #f3e9e6;
  --sheet-2: #ead9d5;
  --ink: #1d1517;
  --ink-2: #5b4b4e;
  --grid: #efd9d6;
  --grid-major: #e3bdb8;
  --trace: #1d1517;
  --red: #c8102e;
  --red-soft: rgba(200, 16, 46, .16);
  --amber: #9a5d00;
  --focus: #c8102e;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #141011; --sheet: #1f1719; --sheet-2: #2a2023; --ink: #f4ecea; --ink-2: #b8a8a6;
    --grid: #2a1f21; --grid-major: #3d2b2e; --trace: #f4ecea; --red: #ff4d5e;
    --red-soft: rgba(255, 77, 94, .22); --amber: #f0b44c; --focus: #ff4d5e; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #141011; --sheet: #1f1719; --sheet-2: #2a2023; --ink: #f4ecea; --ink-2: #b8a8a6;
  --grid: #2a1f21; --grid-major: #3d2b2e; --trace: #f4ecea; --red: #ff4d5e;
  --red-soft: rgba(255, 77, 94, .22); --amber: #f0b44c; --focus: #ff4d5e; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-color: var(--sheet-2) var(--ground); }
body {
  margin: 0; background: var(--ground); color: var(--ink); font: 16px/1.45 var(--font);
  font-variant-numeric: tabular-nums; caret-color: var(--red); accent-color: var(--red);
}
::selection { background: var(--red); color: var(--ground); }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; text-align: left; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
h1, h2, h3, p { margin: 0; }

#app { max-width: 1120px; margin: 0 auto; padding: 0 16px calc(32px + env(safe-area-inset-bottom)); }

/* шапка: вердикт — единственное крупное на экране */
.head { padding: 28px 0 18px; }
#verdict {
  font-size: 2.25rem; line-height: 1.02; font-weight: 800; letter-spacing: -.03em;
  text-wrap: balance; overflow-wrap: anywhere;
}
#verdict[data-level="2"] { color: var(--red); }
.sub { margin-top: 10px; color: var(--ink-2); font-size: .95rem; }
.sub .stale { color: var(--amber); font-weight: 600; }
.sub .demo { color: var(--red); font-weight: 600; }

.tabs {
  position: sticky; top: 0; z-index: 2; display: flex; gap: 4px; padding: 8px 0;
  background: var(--ground);
}
.tabs button {
  min-height: 44px; padding: 0 16px; font-weight: 600; color: var(--ink-2);
  background: var(--sheet); transition: background-color .18s ease-out, color .18s ease-out;
}
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { background: var(--ink); color: var(--ground); }
.tabs button:active { transform: translateY(1px); }

#view { padding-top: 12px; }
#view:focus { outline: none; }

/* разделы */
.cols { display: grid; gap: 28px; }
.group h2, .block h2 { font-size: 1.05rem; font-weight: 700; margin: 0 0 8px; }
.group h2 .note, .block h2 .note { font-weight: 400; color: var(--ink-2); margin-left: 6px; }
.block { margin-bottom: 28px; }

/* строка пункта: имя, состояние, число, полоса пульса */
.row {
  display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; width: 100%;
  padding: 12px; margin-bottom: 4px; background: var(--sheet);
  transition: background-color .18s ease-out;
}
button.row:hover { background: var(--sheet-2); }
button.row:active { transform: translateY(1px); }
.row .name { font-weight: 700; font-size: 1.05rem; display: flex; align-items: center; gap: 8px; min-width: 0; }
.row .ms { font-size: 1.35rem; font-weight: 700; letter-spacing: -.02em; justify-self: end; align-self: center; }
.row .ms small { font-size: .8rem; font-weight: 500; color: var(--ink-2); margin-left: 2px; }
.row .text { grid-column: 1 / -1; color: var(--ink-2); font-size: .9rem; overflow-wrap: anywhere; }
.row .strip { grid-column: 1 / -1; margin-top: 6px; }
.row[data-level="2"] .ms, .row[data-level="2"] .text { color: var(--red); }
.row[data-level="1"] .text { color: var(--amber); }

.mark { flex: none; width: 14px; height: 14px; }
.lvl { font-size: .8rem; font-weight: 600; color: var(--ink-2); }
.row[data-level="2"] .lvl { color: var(--red); }
.row[data-level="1"] .lvl { color: var(--amber); }

/* графики */
svg.strip, svg.chart { display: block; width: 100%; overflow: visible; }
svg.strip { height: 40px; }
svg.chart { height: auto; touch-action: pan-y; }
.trace { fill: none; stroke: var(--trace); stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
/* кривая пишется слева направо, как перо по ленте — один раз при открытии */
.draw .trace { animation: draw .9s cubic-bezier(.16, 1, .3, 1) both; }
@keyframes draw { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
.band { fill: var(--red-soft); }
.band.hard { fill: var(--red); opacity: .55; }
.gap { fill: var(--sheet-2); }
.grid-minor { stroke: var(--grid); stroke-width: 1; vector-effect: non-scaling-stroke; }
.grid-major { stroke: var(--grid-major); stroke-width: 1; vector-effect: non-scaling-stroke; }
.axis { fill: var(--ink-2); font: 11px var(--font); font-variant-numeric: tabular-nums; }
.cursor { stroke: var(--ink); stroke-width: 1; }
.dot { fill: var(--ink); }

/* полный лист пункта */
.sheet-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.back { min-height: 44px; padding: 0 14px; background: var(--sheet); font-weight: 600; }
.back:hover { background: var(--sheet-2); }
.sheet-title { font-size: 1.6rem; font-weight: 800; letter-spacing: -.02em; display: flex; align-items: center; gap: 10px; }
.sheet-text { color: var(--ink-2); margin: 6px 0 16px; overflow-wrap: anywhere; }
.sheet-text[data-level="2"] { color: var(--red); }
.plate { background: var(--sheet); padding: 12px 12px 8px; margin-bottom: 24px; }
.plate-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.readout { color: var(--ink-2); font-size: .9rem; min-height: 1.3em; margin-top: 4px; }
.big { font-size: 2rem; font-weight: 800; letter-spacing: -.02em; }
.big.bad { color: var(--red); }
.big.warn { color: var(--amber); }
.seg { display: inline-flex; gap: 2px; }
.seg button { min-height: 36px; padding: 0 12px; background: var(--sheet-2); font-weight: 600; font-size: .9rem; color: var(--ink-2); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--ground); }

/* таблицы фактов */
table { width: 100%; border-collapse: collapse; }
td, th { padding: 9px 0; vertical-align: top; text-align: left; font-weight: 400; }
tr + tr td, tr + tr th { border-top: 1px solid var(--sheet-2); }
td.num { text-align: right; font-weight: 600; overflow-wrap: anywhere; }
th { color: var(--ink-2); padding-right: 16px; width: 45%; overflow-wrap: anywhere; }
td.bad { color: var(--red); }
td.warn { color: var(--amber); }

/* история */
.hist { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 12px; margin-bottom: 4px; background: var(--sheet); width: 100%; }
.hist:hover { background: var(--sheet-2); }
.hist .name { font-weight: 700; }
.hist .up { font-weight: 800; font-size: 1.25rem; justify-self: end; }
.hist .up.bad { color: var(--red); }
.hist .up.warn { color: var(--amber); }
.hist .range { grid-column: 1 / -1; color: var(--ink-2); font-size: .85rem; }
.hist .strip { grid-column: 1 / -1; margin-top: 4px; }
.incident { display: grid; grid-template-columns: 1fr auto; gap: 0 12px; padding: 10px 0; }
.incident + .incident { margin-top: 2px; }
.incident .name { font-weight: 600; overflow-wrap: anywhere; }
.incident .when { color: var(--ink-2); font-size: .9rem; grid-column: 1; }
.incident .dur { grid-row: 1; grid-column: 2; font-weight: 700; }
.incident.open .dur { color: var(--red); }
.incident .meter { grid-column: 1 / -1; }

/* сеть */
.meter { display: block; height: 6px; background: var(--sheet-2); margin-top: 6px; }
.meter i { display: block; height: 100%; background: var(--ink); transform-origin: left; }
.bars { display: inline-flex; gap: 2px; align-items: flex-end; height: 14px; vertical-align: -1px; margin-right: 6px; }
.bars i { width: 4px; background: var(--sheet-2); }
.bars i.on { background: var(--ink); }
.muted { color: var(--ink-2); }
.empty { color: var(--ink-2); padding: 12px; background: var(--sheet); }

.gate { max-width: 34rem; margin: 18vh auto 0; padding: 0 16px; font-size: 1.1rem; }
.gate h1 { font-size: 2rem; font-weight: 800; letter-spacing: -.03em; margin-bottom: 12px; }

@media (min-width: 760px) {
  .head { padding-top: 40px; }
  #verdict { font-size: 3.25rem; }
  .cols { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  .draw .trace { animation: none; }
  * { transition: none !important; }
}
.group h2.next { margin-top: 24px; }
.note-top { margin-bottom: 12px; }