/* Кольори: полюси тривога (червоний) ↔ надія (синій), сірий центр — пара перевірена
   валідатором палітри на дальтонізм і контраст для світлої й темної теми. */
:root {
  color-scheme: light;
  --bg: #fcfcfb;
  --card: #ffffff;
  --line: #e4e3df;
  --grid: #ecebe7;
  --text: #0b0b0b;
  --text-2: #52514e;
  --alarm: #e34948;
  --hope: #2a78d6;
  --mid: #c9c8c3;
  --zone-alarm: rgba(227, 73, 72, .06);
  --zone-hope: rgba(42, 120, 214, .06);
  --on: #0b0b0b;
  --on-text: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #1a1a19; --card: #232322; --line: #383835; --grid: #2e2e2c;
    --text: #f0efec; --text-2: #c3c2b7;
    --alarm: #e66767; --hope: #3987e5; --mid: #55554f;
    --zone-alarm: rgba(230, 103, 103, .08); --zone-hope: rgba(57, 135, 229, .08);
    --on: #f0efec; --on-text: #1a1a19;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #1a1a19; --card: #232322; --line: #383835; --grid: #2e2e2c;
  --text: #f0efec; --text-2: #c3c2b7;
  --alarm: #e66767; --hope: #3987e5; --mid: #55554f;
  --zone-alarm: rgba(230, 103, 103, .08); --zone-hope: rgba(57, 135, 229, .08);
  --on: #f0efec; --on-text: #1a1a19;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 15px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; -webkit-text-size-adjust: 100%; }
#app { max-width: 720px; margin: 0 auto; padding: 12px 16px 32px; }
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 4px; }
.muted { color: var(--text-2); }
.small { font-size: 13px; }
.top { margin-bottom: 12px; }
.top p { margin: 2px 0 0; font-size: 13px; }

.title-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.ghost { border: 1px solid var(--line); background: var(--card); color: var(--text); border-radius: 10px;
  padding: 6px 12px; font: inherit; font-size: 14px; cursor: pointer; }
.ghost.on { background: var(--on); color: var(--on-text); }
.people { list-style: none; margin: 6px 0 0; padding: 0; }
.people li { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 0; border-top: 1px solid var(--line); }
.people .who { min-width: 0; }
.people .who div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.people .acts { display: flex; gap: 6px; flex-shrink: 0; }
.people button, .add-form button { border: 1px solid var(--line); background: var(--card); color: var(--text);
  border-radius: 8px; padding: 6px 10px; font: inherit; font-size: 13px; cursor: pointer; }
.people button.primary, .add-form button { background: var(--on); color: var(--on-text); border-color: var(--on); }
.people button:disabled, .add-form button:disabled { opacity: .5; }
.add-form { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.add-form input { flex: 1 1 160px; min-width: 0; border: 1px solid var(--line); background: var(--bg); color: var(--text);
  border-radius: 8px; padding: 8px 10px; font: inherit; font-size: 16px; }
.err { color: var(--alarm); }
.msg { padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.msg code { font-size: 17px; font-weight: 600; user-select: all; }

.controls { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--card); }
.seg button { border: 0; background: transparent; color: var(--text); padding: 8px 12px; font: inherit; cursor: pointer; }
.seg.small button { padding: 6px 10px; font-size: 13px; }
.seg button.on { background: var(--on); color: var(--on-text); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; margin-bottom: 12px; }

.gauge-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 8px; }
.big { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.big .word { font-size: 16px; font-weight: 600; }
.delta { font-size: 13px; text-align: right; color: var(--text-2); }
.gauge { position: relative; height: 14px; margin: 14px 0 6px; }
.gauge-bar { position: absolute; inset: 0; border-radius: 7px;
  background: linear-gradient(90deg, var(--alarm), var(--mid) 50%, var(--hope)); }
.gauge-mid { position: absolute; left: 50%; top: -3px; bottom: -3px; width: 2px; margin-left: -1px; background: var(--text-2); opacity: .5; }
.gauge-mark { position: absolute; top: -5px; width: 8px; height: 24px; margin-left: -4px; border-radius: 4px;
  background: var(--text); box-shadow: 0 0 0 2px var(--card); left: 50%; transition: left .3s; }
.gauge-ends { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-2); margin-bottom: 6px; }

.chart-title { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 6px; font-weight: 600; margin-bottom: 6px; }
.legend { font-size: 12px; font-weight: 400; color: var(--text-2); display: inline-flex; align-items: center; gap: 6px; }
.sw { display: inline-block; }
.sw-line { width: 16px; height: 2px; background: var(--text); border-radius: 1px; }
.sw-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-2); opacity: .55; margin-left: 6px; }
.chart-wrap { position: relative; }
#chart { width: 100%; height: 220px; display: block; touch-action: pan-y; }
#chart .grid { stroke: var(--grid); stroke-width: 1; }
#chart .zero { stroke: var(--text-2); stroke-width: 1; opacity: .6; }
#chart .axis { fill: var(--text-2); font-size: 11px; }
#chart .zone-hope { fill: var(--zone-hope); }
#chart .zone-alarm { fill: var(--zone-alarm); }
#chart .ma { fill: none; stroke: var(--text); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
#chart .dot { stroke: var(--card); stroke-width: 1; }
#chart .dot.pos { fill: var(--hope); }
#chart .dot.neg { fill: var(--alarm); }
#chart .dot.zer { fill: var(--text-2); }
#chart .cross { stroke: var(--text-2); stroke-width: 1; }
#chart .sel { stroke: var(--text); stroke-width: 1; stroke-dasharray: 3 3; }
#chart .full { stroke: var(--text-2); stroke-width: 1; stroke-dasharray: 2 4; }
.tip { position: absolute; top: 4px; pointer-events: none; background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 8px; font-size: 12px; white-space: nowrap; box-shadow: 0 2px 8px rgba(0,0,0,.12); }

.items { list-style: none; margin: 8px 0 0; padding: 0; }
.items li { padding: 10px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; }
.badge { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; align-self: start;
  border: 1px solid currentColor; }
.badge.pos { color: var(--hope); }
.badge.neg { color: var(--alarm); }
.badge.zer { color: var(--text-2); }
.items a { color: var(--text); text-decoration: none; }
.items a:active { opacity: .6; }
.items .why { grid-column: 2; font-size: 12px; color: var(--text-2); }
.foot { margin-top: 8px; }