:root {
  --bg: #08101c;
  --glass: rgba(9, 16, 30, .62);
  --glass-strong: rgba(9, 16, 30, .88);
  --line: rgba(255, 255, 255, .14);
  --text: #eaf1fb;
  --muted: #9fb0c7;
  --accent: #ffc247;
  --accent2: #5fd0ff;
  --ok: #55e39a;
  --bad: #ff6b6b;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); overflow: hidden;
  font: 15px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; touch-action: none; }
[hidden] { display: none !important; }

#cam, #ar { position: fixed; inset: 0; width: 100%; height: 100%; }
#cam { object-fit: cover; background: #000; }
#ar { pointer-events: none; }

/* Верхняя панель */
#hud { position: fixed; top: calc(var(--safe-t) + 8px); left: 8px; right: 8px; display: flex; gap: 8px;
  align-items: center; justify-content: space-between; z-index: 5; }
.seg { display: flex; background: var(--glass); border: 1px solid var(--line); border-radius: 12px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); overflow: hidden; }
.seg button { background: none; border: 0; color: var(--muted); padding: 9px 12px; font: inherit; font-weight: 600; }
.seg button.on { color: #1b1300; background: var(--accent); }
.chips { display: flex; gap: 5px; flex: 1; justify-content: center; }
.chip { font-size: 11px; padding: 4px 7px; border-radius: 999px; background: var(--glass); border: 1px solid var(--line);
  color: var(--muted); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.chip.ok { color: var(--ok); border-color: rgba(85, 227, 154, .45); }
.chip.bad { color: var(--bad); border-color: rgba(255, 107, 107, .45); }
.icon { width: 40px; height: 40px; border-radius: 12px; background: var(--glass); border: 1px solid var(--line);
  color: var(--text); font-size: 19px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }

#readout { position: fixed; top: calc(var(--safe-t) + 58px); left: 0; right: 0; text-align: center; z-index: 4; padding: 0 12px;
  font: 600 12px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; color: #fff; letter-spacing: .02em;
  text-shadow: 0 1px 3px rgba(0, 0, 0, .9); font-variant-numeric: tabular-nums; pointer-events: none; }

/* Ближайший город */
#nearest { position: fixed; left: 8px; right: 8px; bottom: calc(var(--safe-b) + 10px); z-index: 5; display: flex; gap: 12px;
  align-items: center; padding: 10px 14px; background: var(--glass-strong); border: 1px solid var(--line);
  border-radius: 16px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
#nArrow { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; flex: none;
  background: rgba(255, 194, 71, .15); color: var(--accent); font-size: 22px; border: 1px solid rgba(255, 194, 71, .5);
  transition: transform .15s linear; }
#nTitle { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
#nName { font-size: 20px; font-weight: 700; line-height: 1.15; }
#nInfo { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }

#toast { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(var(--safe-b) + 96px); z-index: 9;
  background: var(--glass-strong); border: 1px solid var(--line); padding: 9px 14px; border-radius: 12px;
  max-width: 90vw; text-align: center; font-size: 14px; }

/* Старт */
#start { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 18px;
  background: radial-gradient(120% 80% at 50% 0%, #17304f 0%, #0a1423 55%, #060b14 100%); overflow: auto; touch-action: pan-y; }
.start-card { width: min(520px, 100%); text-align: center; }
.logo { font-size: 56px; color: var(--accent); line-height: 1; }
h1 { margin: 6px 0 8px; font-size: 32px; letter-spacing: .01em; }
.lead { color: #cfdcef; margin: 0 0 14px; font-size: 16px; }
.how { text-align: left; color: var(--muted); padding: 0 0 0 18px; margin: 0 0 18px; font-size: 14px; }
.how li { margin-bottom: 7px; }
.how b { color: var(--text); }
button.primary, button.ghost { display: block; width: 100%; padding: 14px; border-radius: 14px; font: inherit; font-weight: 700;
  border: 1px solid var(--line); margin-bottom: 10px; }
button.primary { background: var(--accent); color: #1b1300; border-color: transparent; font-size: 16px; }
button.ghost { background: rgba(255, 255, 255, .06); color: var(--text); }
button.small { padding: 10px; font-size: 14px; }
.note { color: var(--muted); font-size: 12px; min-height: 1.2em; }

/* Настройки */
#panel { position: fixed; left: 0; right: 0; bottom: 0; max-height: 78vh; overflow-y: auto; z-index: 15; touch-action: pan-y;
  background: var(--glass-strong); border-top: 1px solid var(--line); border-radius: 20px 20px 0 0; padding: 0 16px calc(var(--safe-b) + 18px);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.panel-head { display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; padding: 14px 0 8px;
  background: linear-gradient(var(--glass-strong) 80%, transparent); }
.panel-head h2 { margin: 0; font-size: 18px; }
.group { border-top: 1px solid var(--line); padding: 12px 0 6px; }
.group h3 { margin: 0 0 8px; font-size: 13px; color: var(--accent2); text-transform: uppercase; letter-spacing: .07em; }
.group h3 small { text-transform: none; letter-spacing: 0; color: var(--muted); font-weight: 400; }
label { display: block; margin-bottom: 10px; font-size: 14px; color: #cfdcef; }
label output { float: right; color: var(--accent); font-variant-numeric: tabular-nums; }
label.row { display: flex; gap: 8px; align-items: center; }
input[type=range] { width: 100%; margin-top: 6px; accent-color: var(--accent); }
input[type=number], input[type=text], input:not([type]), select {
  width: 100%; margin-top: 5px; padding: 10px; border-radius: 10px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, .06); color: var(--text); font: inherit; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.hint { color: var(--muted); font-size: 12.5px; margin: 0 0 10px; }
label.file input { margin-top: 6px; font-size: 13px; color: var(--muted); }