/* Atlas: muzejní katalog s nádechem sci-fi. Bílá, černá, jedna mosaz (náboje). */
:root {
  --ink: #000;
  --paper: #fff;
  --mute: #8b8b90;
  --soft: #c8c8cd;
  --line: #e7e7ea;
  --track: #ececef;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --top: env(safe-area-inset-top, 0px);
  --bot: env(safe-area-inset-bottom, 0px);
  --ease: cubic-bezier(.22, .9, .24, 1);
  --side: 20px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; background: var(--paper); color: var(--ink); overscroll-behavior: none; }
body {
  position: fixed; inset: 0; overflow: hidden;
  font: 15px/1.45 var(--sans);
  -webkit-font-smoothing: antialiased;
  -webkit-user-select: none; user-select: none; -webkit-touch-callout: none;
  touch-action: none;
}
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; margin: 0; cursor: pointer; }
button:disabled { opacity: .25; cursor: default; }
button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 6px; }

#app { position: fixed; inset: 0; height: 100dvh; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; }

/* ——— hlavička ——— */
#top {
  height: calc(var(--top) + 48px); padding: var(--top) 8px 0 var(--side);
  display: flex; align-items: center; justify-content: space-between;
}
.t-brand { font: 650 12px/1 var(--sans); letter-spacing: .2em; }
.t-brand span { margin-left: 10px; font: 500 10px/1 var(--mono); letter-spacing: .16em; color: var(--mute); }
.t-right { display: flex; align-items: center; }
.t-count {
  display: flex; align-items: center; gap: 8px; height: 44px; padding: 0 10px;
  font: 500 11px/1 var(--mono); letter-spacing: .08em; font-variant-numeric: tabular-nums;
}
.t-count i {
  width: 11px; height: 11px; display: block;
  background: radial-gradient(circle, var(--ink) 1.05px, transparent 1.3px) 0 0 / 3.67px 3.67px;
}

.ico { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; }
.ico svg { width: 22px; height: 22px; fill: none; stroke: var(--ink); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.ico .f { fill: var(--ink); stroke: none; }
.ico:active { background: #f2f2f4; }

/* ——— pager ——— */
#pager { position: relative; overflow: hidden; }
.rail { position: absolute; inset: 0; will-change: transform; }
.card { position: absolute; top: 0; bottom: 0; width: 100%; background: var(--paper); }

/* ——— lišta abecedy ——— */
#abc {
  height: calc(var(--bot) + 60px); padding: 0 2px var(--bot);
  display: grid; grid-template-columns: 44px minmax(0, 1fr) 44px; align-items: center;
  border-top: 1px solid var(--line);
}
#abc .nav svg { width: 20px; height: 20px; stroke-width: 1.6; }
#strip {
  display: flex; overflow-x: auto; scrollbar-width: none; touch-action: pan-x;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 28px, #000 calc(100% - 28px), transparent);
          mask-image: linear-gradient(90deg, transparent, #000 28px, #000 calc(100% - 28px), transparent);
}
#strip::-webkit-scrollbar { display: none; }
.sl {
  flex: 0 0 40px; height: 48px; position: relative;
  font: 600 15px/1 var(--sans); color: var(--soft); transition: color .3s;
}
.sl.on { color: var(--ink); }
.sl.cur::after {
  content: ""; position: absolute; left: 50%; bottom: 7px; width: 14px; height: 2px;
  background: var(--ink); transform: translateX(-50%);
}

/* ——— zamčená karta: obtahování ——— */
.card.locked { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; }
.lk-top {
  display: flex; justify-content: space-between; padding: 8px var(--side) 0;
  font: 500 10px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--mute);
}
.zone { display: grid; place-items: center; touch-action: none; min-height: 0; }
.zone svg { display: block; overflow: visible; }
.lk-hint {
  margin: 0 0 16px; text-align: center;
  font: 500 10px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--mute);
}
.letter .track-body { stroke: var(--track); }
.letter .track-edge { stroke: #dcdce0; }
.letter .ink-trace, .letter .ink-solid { stroke: var(--ink); }
.guide .dot-bg { fill: var(--ink); transform-box: fill-box; transform-origin: center; }
.guide .dot-num { fill: #fff; font: 700 7.4px/1 var(--sans); text-anchor: middle; dominant-baseline: central; }
.guide .arrow { fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.guide .ghost { fill: var(--ink); }
.guide .dot.pulse .dot-bg { animation: pulse 640ms var(--ease); }
@keyframes pulse { 0% { transform: scale(1); } 35% { transform: scale(1.45); } 100% { transform: scale(1); } }
.zone.tracing .guide .arrow { display: none; }

/* ——— odemčená karta ——— */
.card.open { display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; padding: 6px var(--side) 8px; }
.head { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: end; column-gap: 16px; }
.bar { display: flex; justify-content: space-between; align-items: center; margin: 6px -10px 0 0; min-height: 44px; }
.glyph { display: block; border-radius: 4px; }
.glyph svg { display: block; height: clamp(62px, 12dvh, 104px); width: auto; overflow: visible; }
.glyph .track-body { stroke: transparent; }
.title { min-width: 0; padding-bottom: 1px; }
.title h2 { margin: 0; font: 700 clamp(24px, 7.6vw, 32px)/1.02 var(--sans); letter-spacing: -.024em; overflow-wrap: anywhere; }
.title .meta, .sheet .meta {
  margin: 7px 0 0; font: 500 10px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute);
}
.acts { display: flex; }
.acts .ico svg { width: 21px; height: 21px; }

.art { position: relative; margin: 0 calc(-1 * var(--side)); min-height: 0; display: grid; }
.plate { font: 500 10px/1 var(--mono); letter-spacing: .14em; color: var(--mute); }
.stage { position: relative; margin: 6px 12px 12px; min-height: 0; }
.stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; -webkit-user-drag: none; }
.stage .sil { filter: brightness(0); opacity: 0; }
.stage .scan { position: absolute; top: -6%; bottom: -6%; width: 1px; left: var(--sweep, -10%); opacity: 0;
  background: linear-gradient(transparent, var(--ink) 18%, var(--ink) 82%, transparent); }
.stage.missing::after {
  content: "ilustrace se připravuje"; position: absolute; inset: 0; display: grid; place-items: center;
  font: 500 10px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--soft);
  border: 1px dashed var(--line); border-radius: 6px;
}
.card.pre .stage:not(.revealing):not(.shown) .obj { opacity: 0; }
.stage.revealing .sil { opacity: 1; transition: opacity 260ms ease-out;
  -webkit-mask-image: linear-gradient(90deg, transparent calc(var(--sweep) - 5%), #000 calc(var(--sweep) + 7%));
          mask-image: linear-gradient(90deg, transparent calc(var(--sweep) - 5%), #000 calc(var(--sweep) + 7%)); }
.stage.revealing .obj {
  -webkit-mask-image: linear-gradient(90deg, #000 calc(var(--sweep) - 7%), transparent calc(var(--sweep) + 5%));
          mask-image: linear-gradient(90deg, #000 calc(var(--sweep) - 7%), transparent calc(var(--sweep) + 5%)); }
.stage.revealing .scan { opacity: .55; }

.stat { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: end; column-gap: 16px; padding: 2px 0 4px; }
.num { display: grid; justify-items: start; text-align: left; padding: 4px 0; }
.num b { font: 200 clamp(46px, 15vw, 64px)/.82 var(--sans); letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.num .unit { margin-top: 10px; font: 600 10.5px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.num .sub { margin-top: 5px; font: 500 10px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); }
.viz { justify-self: end; max-width: 100%; overflow: hidden; display: flex; justify-content: flex-end; }
.viz svg { display: block; max-width: 100%; height: auto; }
.measure .r-axis, .measure .r-tick { stroke: var(--soft); stroke-width: 1; fill: none; }
.measure .r-tick.big { stroke: var(--mute); }
.measure .r-base { stroke: var(--ink); stroke-width: 1; }
.measure .r-lab, .measure .r-cap { font: 500 8.5px/1 var(--mono); fill: var(--mute); letter-spacing: .04em; }
.measure .r-lab { text-anchor: end; }
.measure .r-cap { text-anchor: middle; }
.measure .person { fill: var(--soft); }
.measure .r-bar { fill: var(--ink); }

.bump { animation: bump 420ms var(--ease); }
@keyframes bump { 30% { transform: scale(.94); } 100% { transform: scale(1); } }

/* náběh po odemčení */
.card .title, .card .bar, .card .stat { transition: opacity 520ms var(--ease), transform 640ms var(--ease); }
.card .stat { transition-delay: 140ms; }
.card.pre .title, .card.pre .bar, .card.pre .stat { opacity: 0; transform: translateY(10px); }
.card.post .ammo .round { animation: rowIn 520ms var(--ease) both; animation-delay: calc(var(--row) * 110ms + 260ms); }
@keyframes rowIn { from { opacity: 0; } to { opacity: 1; } }
.flyer { position: absolute; z-index: 5; pointer-events: none; }

/* opakované obtahování */
.retrace {
  position: absolute; inset: 0; z-index: 4; background: var(--paper);
  display: grid; grid-template-rows: auto minmax(0, 1fr) auto;
  opacity: 0; transition: opacity 240ms ease-out;
}
.retrace.in { opacity: 1; }
.retrace .close { justify-self: end; margin: 2px 8px 0 0; }

/* ——— panely ——— */
#scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, .16); opacity: 0; pointer-events: none; transition: opacity 300ms ease; z-index: 20; }
#scrim.in { opacity: 1; pointer-events: auto; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 21; max-height: 84dvh;
  display: flex; flex-direction: column; background: var(--paper);
  border-radius: 20px 20px 0 0; box-shadow: 0 -1px 0 var(--line);
  padding-bottom: var(--bot);
  transform: translateY(104%); transition: transform 380ms var(--ease);
  -webkit-user-select: text; user-select: text;
}
.sheet.in { transform: none; }
.grab { width: 36px; height: 4px; border-radius: 2px; background: var(--line); margin: 8px auto 0; flex: none; }
.sh-head { display: flex; justify-content: space-between; align-items: flex-start; padding: 10px 8px 14px var(--side); border-bottom: 1px solid var(--line); flex: none; }
.sh-head h3 { margin: 6px 0 0; font: 700 26px/1.05 var(--sans); letter-spacing: -.02em; }
.eyebrow { margin: 0; font: 600 10px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.sh-body { overflow-y: auto; touch-action: pan-y; padding: 6px var(--side) 22px; -webkit-overflow-scrolling: touch; }
.sh-body h4 { margin: 22px 0 6px; font: 600 10px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); }
.sh-body p { margin: 0; font: 400 15.5px/1.5 var(--sans); }
.sh-body .muted { color: var(--mute); margin-top: 18px; }
.tech { margin: 10px 0 0; display: grid; }
.tech div { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.tech dt { font: 500 10px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.tech dd { margin: 0; font: 500 13px/1.4 var(--mono); text-align: right; }
.src { margin-top: 22px !important; font: 500 10px/1.6 var(--mono) !important; letter-spacing: .08em; color: var(--mute); text-transform: uppercase; }
.src a { color: var(--ink); margin-left: 6px; }

.row { display: flex; width: 100%; justify-content: space-between; align-items: center; gap: 16px; min-height: 52px; padding: 10px 0; border-bottom: 1px solid var(--line); text-align: left; }
.row > span:first-child { font: 600 15px/1.3 var(--sans); }
.row .val { font: 500 11px/1.45 var(--mono); letter-spacing: .04em; color: var(--mute); text-align: right; }
.row .val.warn { color: var(--ink); font-weight: 700; }
.row.col { flex-direction: column; align-items: flex-start; gap: 6px; }
.row.col .val { text-align: left; font: 400 14px/1.45 var(--sans); letter-spacing: 0; }
.row.danger > span:first-child { color: var(--ink); }
.sw { cursor: pointer; }
.sw input { position: absolute; opacity: 0; pointer-events: none; }
.sw i { width: 46px; height: 28px; border-radius: 14px; background: var(--line); position: relative; transition: background .25s; flex: none; }
.sw i::after { content: ""; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.2); transition: transform .25s var(--ease); }
.sw input:checked + i { background: var(--ink); }
.sw input:checked + i::after { transform: translateX(18px); }
.foot { margin-top: 22px !important; font: 500 10px/1.5 var(--mono) !important; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }

.tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; padding-top: 14px; }
.tile { aspect-ratio: 1 / 1.08; border-radius: 10px; background: #f6f6f7; display: grid; place-items: center; align-content: center; gap: 4px; padding: 6px 2px; }
.tile svg { height: 30px; width: auto; display: block; }
.tile .ink-solid, .tile .ink-trace { stroke: var(--soft); }
.tile .track-body { stroke: transparent; }
.tile.on { background: var(--paper); box-shadow: inset 0 0 0 1px var(--line); }
.tile.on .ink-solid, .tile.on .ink-trace { stroke: var(--ink); }
.tile span { font: 500 8px/1.1 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--mute); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile.cur { box-shadow: inset 0 0 0 2px var(--ink); }

.dialog { position: fixed; inset: 0; z-index: 30; display: grid; place-items: center; background: rgba(0, 0, 0, .2); opacity: 0; transition: opacity 200ms ease; padding: 24px; }
.dialog.in { opacity: 1; }
.dlg { width: min(340px, 100%); background: var(--paper); border-radius: 18px; padding: 22px var(--side) 12px; text-align: center; }
.dlg h3 { margin: 0; font: 700 21px/1.15 var(--sans); letter-spacing: -.015em; }
.dlg p { margin: 8px 0 18px; color: #3a3a3c; font-size: 14.5px; }
.hold { position: relative; overflow: hidden; width: 100%; height: 50px; border-radius: 25px; background: var(--ink); color: #fff; font: 600 15px/1 var(--sans); touch-action: none; }
.hold i { position: absolute; inset: 0; width: 0; background: #3d3d40; }
.hold.holding i { width: 100%; transition: width 2s linear; }
.hold span { position: relative; }
.cancel { width: 100%; height: 46px; margin-top: 6px; font: 600 15px/1 var(--sans); }

#toast {
  position: fixed; left: 50%; bottom: calc(var(--bot) + 76px); z-index: 40; max-width: calc(100% - 40px);
  transform: translate(-50%, 12px); opacity: 0; pointer-events: none; transition: opacity 260ms ease, transform 360ms var(--ease);
  background: var(--ink); color: #fff; border-radius: 14px; padding: 11px 16px; font: 500 13.5px/1.35 var(--sans); text-align: center;
}
#toast.in { opacity: 1; transform: translate(-50%, 0); }

@media (max-height: 700px) {
  :root { --side: 16px; }
  .lk-hint { margin-bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 1ms !important; transition-duration: 1ms !important; }
}