:root {
  --bg: #0b0c0e;
  --surface: #15171b;
  --surface-2: #1d2026;
  --line: #2a2e36;
  --text: #eef0f3;
  --muted: #9aa1ad;
  --brand: #e8414e;
  --star: #f2c94c;
  --new: #4cc38a;
  --radius: 14px;
  --gutter: 16px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f4f6;
    --surface: #ffffff;
    --surface-2: #eceef2;
    --line: #d9dce3;
    --text: #15171b;
    --muted: #5c6370;
    --star: #a87b00;
    --new: #16804d;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 var(--font);
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}
a { color: inherit; }
button, input, select { font: inherit; color: inherit; }
h1, h2 { line-height: 1.2; }
.muted { color: var(--muted); }
.ico { width: 1.15em; height: 1.15em; flex: none; vertical-align: -0.2em; }

#view, .top > *, .foot { max-width: 720px; margin-inline: auto; }
#view { padding: 8px var(--gutter) 24px; }

/* ---------- header ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: calc(env(safe-area-inset-top) + 8px) var(--gutter) 10px;
}
.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; font-size: 18px; letter-spacing: -0.01em; }
.brand b { color: var(--brand); }
@media (max-width: 400px) { .brand span { display: none; } }
.camera-btn {
  display: flex; align-items: center; gap: 6px; min-width: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 10px 6px 12px; font-size: 14px; cursor: pointer;
}
.camera-btn .cam-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.camera-btn .cam-fw { color: var(--muted); white-space: nowrap; }
@media (max-width: 420px) { .camera-btn .cam-brand { display: none; } }

.search {
  margin-top: 10px; display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1.5px solid var(--line); border-radius: 12px; padding: 0 6px 0 12px;
}
.search:focus-within { border-color: var(--brand); }
.search > .ico { color: var(--muted); }
.search input { flex: 1; min-width: 0; border: 0; background: none; outline: none; padding: 12px 0; font-size: 17px; }
.search input::-webkit-search-cancel-button { display: none; }
.search button { border: 0; background: none; padding: 8px; cursor: pointer; color: var(--muted); display: flex; }

.modes { display: flex; align-items: center; gap: 6px; margin-top: 10px; }
.modes-label { font-size: 13px; color: var(--muted); margin-right: 2px; }
.modes button {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px;
  padding: 6px 14px; font-size: 14px; cursor: pointer; min-height: 36px;
}
.modes button[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); font-weight: 600; }

/* ---------- generic ---------- */
section { margin-top: 22px; }
.label {
  font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted);
  font-weight: 600; margin: 0 0 10px; display: flex; align-items: center; gap: 6px;
}
.label .muted { text-transform: none; letter-spacing: 0; font-weight: 400; }
.intro h1 { font-size: 26px; margin: 14px 0 6px; letter-spacing: -0.02em; }
.intro p { margin: 0; color: var(--muted); }
.intro b { color: var(--text); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px;
  padding: 8px 14px; font-size: 14px; cursor: pointer; text-decoration: none; min-height: 38px;
  display: inline-flex; align-items: center;
}
.chip:hover { border-color: var(--muted); }
.chip.on { border-color: var(--a, var(--brand)); background: color-mix(in srgb, var(--a, var(--brand)) 18%, var(--surface)); font-weight: 600; }
.chip.static { cursor: default; min-height: 0; padding: 5px 10px; }
.chips.small .chip { font-size: 13px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 12px; padding: 12px 16px; min-height: 46px;
  background: var(--text); color: var(--bg); font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn.ghost { background: var(--surface); color: var(--text); border: 1px solid var(--line); }
.btn.small { min-height: 34px; padding: 6px 12px; font-size: 14px; }

.badge {
  display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 600;
  border-radius: 6px; padding: 2px 7px; background: var(--surface-2); color: var(--muted);
}
.badge.star { color: var(--star); }
.badge.new { color: var(--new); }
.mode-tag { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--muted); margin-right: 8px; }

.tok { display: inline-flex; vertical-align: -0.15em; margin-right: 3px; }
.tok-text {
  font-size: 0.72em; font-weight: 700; border: 1px solid currentColor; border-radius: 4px;
  padding: 0 4px; margin: 0 3px; vertical-align: 0.1em; line-height: 1.4; opacity: 0.85;
}

/* ---------- browse tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.tile {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 10px;
  align-items: center; text-decoration: none; background: var(--surface); border: 1px solid var(--line);
  border-left: 4px solid var(--a); border-radius: 12px; padding: 12px; min-height: 64px;
}
.tile:hover { border-color: var(--a); }
.tile-ico { grid-row: span 2; color: var(--a); display: flex; }
.tile-ico .ico { width: 26px; height: 26px; }
.tile-name { font-weight: 600; font-size: 15px; line-height: 1.2; }
.tile-n { font-size: 13px; color: var(--muted); }
.tiles.compact { margin-top: 16px; }
.tiles.compact .tile { min-height: 52px; }
@media (min-width: 560px) { .tiles { grid-template-columns: repeat(4, 1fr); } }

/* ---------- results ---------- */
.count { font-size: 14px; color: var(--muted); margin: 10px 0; }
.list { display: grid; gap: 10px; }
.result {
  display: block; text-decoration: none; background: var(--surface); border: 1px solid var(--line);
  border-left: 4px solid var(--a); border-radius: 12px; padding: 12px 14px;
}
.result:hover, .result:focus-visible { border-color: var(--a); outline: none; }
.r-title { font-weight: 650; font-size: 17px; }
.r-sub { color: var(--a); margin-left: 6px; font-weight: 600; }
.r-where { margin-top: 4px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.r-desc { margin-top: 6px; font-size: 14px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.where { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px; font-size: 14px; font-variant-numeric: tabular-nums; }
.where > .ico { color: var(--a); }
.where b { color: var(--a); font-weight: 700; letter-spacing: 0.02em; }
.where .sep { color: var(--muted); }
.where .pg { color: var(--muted); }

.empty { text-align: center; padding: 32px 0; }
.empty p { color: var(--muted); }

/* ---------- camera screen replica ---------- */
.cam-screen {
  background: #000; color: #f4f4f4; border-radius: 10px; overflow: hidden;
  border: 1px solid #2b2b2b; font-family: var(--font); user-select: none;
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.35);
}
.cs-tabs { display: grid; grid-template-columns: repeat(8, 1fr); background: #111; }
.cs-tab { display: flex; justify-content: center; align-items: center; padding: 7px 0 6px; color: #9a9a9a; }
.cs-tab .ico { width: 20px; height: 20px; }
.cs-tab.on { background: var(--c); color: #fff; }
.cs-dashes { display: flex; gap: 5px; padding: 6px 10px 0; }
.cs-dashes i { flex: 0 1 26px; height: 3px; background: #4a4a4a; border-radius: 1px; }
.cs-dashes i.on { background: var(--a); }
.cs-head { display: flex; justify-content: space-between; padding: 6px 10px 4px; font-size: 13px; color: #cfcfcf; font-variant-numeric: tabular-nums; }
.cs-head span:last-child { color: #fff; font-weight: 600; }
.cs-rows { list-style: none; margin: 0; padding: 0 0 6px; }
.cs-rows li { min-height: 38px; border-top: 1px solid #1c1c1c; }
.cs-row {
  display: flex; align-items: center; gap: 8px; min-height: 38px; padding: 4px 10px;
  text-decoration: none; color: #f4f4f4; font-size: 15px; position: relative;
}
.cs-row:hover { background: #151515; }
.cs-n { width: 1.4em; color: #6f6f6f; font-size: 12px; text-align: right; font-variant-numeric: tabular-nums; flex: none; }
.cs-label { flex: 1; min-width: 0; }
.cs-star { color: #b49a3a; font-size: 12px; }
.cs-row.target {
  background: color-mix(in srgb, var(--c) 30%, #000);
  box-shadow: inset 0 0 0 2px var(--a), inset -10px 0 0 var(--c);
  font-weight: 600; padding-right: 16px;
}
.cs-pin { color: #fff; display: flex; animation: bob 1.4s ease-in-out infinite; }
.cs-pin .ico { width: 20px; height: 20px; }
@keyframes bob { 50% { transform: translateY(-3px); } }
@media (prefers-reduced-motion: reduce) { .cs-pin { animation: none; } }

/* ---------- item ---------- */
.item h1 { font-size: 24px; margin: 6px 0 8px; letter-spacing: -0.015em; }
.h-sub { color: var(--a); margin-left: 8px; }
.back {
  display: inline-flex; align-items: center; gap: 4px; border: 0; background: none; color: var(--muted);
  padding: 8px 8px 8px 0; cursor: pointer; font-size: 15px; margin-top: 4px;
}
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.desc { margin: 10px 0 0; font-size: 16px; }

.stops { display: grid; gap: 8px; margin-top: 16px; }
.stop {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; text-decoration: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px;
}
.stop.on { border-color: var(--a); box-shadow: inset 4px 0 0 var(--a); }
.stop-mode { display: inline-flex; }

.walk { display: grid; gap: 16px; margin-top: 16px; }
@media (min-width: 680px) { .walk { grid-template-columns: 1fr 1fr; align-items: start; } }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 10px; }
.steps li {
  counter-increment: step; position: relative; padding: 10px 12px 10px 48px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
}
.steps li::before {
  content: counter(step); position: absolute; left: 12px; top: 10px;
  width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
  background: var(--a); color: #000; font-weight: 800; font-size: 14px;
}
.steps li:last-child { border-color: var(--a); }
.step-text { font-size: 16px; }
.step-hint { font-size: 13px; color: var(--muted); margin-top: 3px; }
.tabname { color: var(--a); display: inline-flex; align-items: center; gap: 4px; }
kbd {
  font: 700 13px/1 var(--font); border: 1px solid var(--line); border-bottom-width: 2px;
  background: var(--surface-2); border-radius: 6px; padding: 3px 6px;
}
.touch-note { font-size: 13px; color: var(--muted); margin: 10px 0 0; }

.callout {
  display: flex; gap: 10px; margin-top: 14px; padding: 12px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line); font-size: 15px;
}
.callout > .ico { margin-top: 2px; color: var(--muted); }
.callout.star { border-color: color-mix(in srgb, var(--star) 45%, var(--line)); }
.callout.star > .ico { color: var(--star); }
.callout.new { border-color: color-mix(in srgb, var(--new) 45%, var(--line)); }
.callout.new > .ico { color: var(--new); }

.opts { margin-top: 18px; }
.opts summary { cursor: pointer; color: var(--muted); font-size: 14px; padding: 6px 0; }
.opts .chips { margin-top: 8px; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.actions .btn { flex: 1 1 150px; white-space: nowrap; }

/* ---------- browse ---------- */
.tabstrip {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; margin-top: 8px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 4px;
}
.ts { display: flex; justify-content: center; padding: 9px 0; border-radius: 8px; color: var(--muted); }
.ts .ico { width: 22px; height: 22px; }
.ts.on { background: var(--c); color: #fff; }
.browse-head h1 { display: flex; align-items: center; gap: 8px; font-size: 24px; margin: 18px 0 2px; color: var(--a); }
.browse-head p { margin: 0; color: var(--muted); }
.pages { display: grid; gap: 16px; margin-top: 16px; }
@media (min-width: 680px) { .pages { grid-template-columns: 1fr 1fr; } }
.page-note { font-size: 13px; color: var(--muted); margin: 6px 2px 0; }

/* ---------- footer, dialog, toast ---------- */
.foot { padding: 8px var(--gutter) 32px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); }
.foot p { margin: 8px 0; }
.foot-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 34px; }
#offline { display: inline-flex; align-items: center; gap: 4px; color: var(--new); }

dialog {
  border: 1px solid var(--line); border-radius: 16px; background: var(--surface); color: var(--text);
  width: min(420px, calc(100vw - 32px)); padding: 20px;
}
dialog::backdrop { background: rgb(0 0 0 / 0.6); }
dialog h2 { margin: 0 0 14px; font-size: 20px; }
dialog label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
dialog select {
  font-size: 16px; color: var(--text); background: var(--surface-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 11px 12px; min-height: 46px;
}
dialog .actions { margin-top: 14px; }

#toast {
  position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom) + 24px); transform: translate(-50%, 20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 999px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s; z-index: 50;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }