/* Atlas de las máquinas · hoja compartida por mapa.html y mapa.ca.html */
/* Tokens compartidos con el museo (index.html) */
:root{
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-inout:cubic-bezier(.83,0,.17,1);
  --bg:#E7E3D8; --ink:#26292E;
  --era1:#B5651D; --era2:#9C720A; --era3:#4E5B63; --era4:#1F8A4C; --era5:#0F4CD1; --era6:#C64518; --era7:#007A85;
  --accent:var(--era5);
  --muted:#5d6167; --panel:#EDEAE0; --line:#C4C0B4; --land:#D5D1C4; --land-line:#B4B0A4; --glow:rgba(15,76,209,.16);
  --sidebar-w:300px; --tl-h:96px;
  color-scheme:light dark;
}
html[data-theme="light"]{color-scheme:light}
html[data-theme="dark"]{color-scheme:dark}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#14171B; --ink:#DDE2E6;
    --era1:#E09B5C; --era2:#D4A72C; --era3:#8FA1AC; --era4:#35C46A; --era5:#5B8DEF; --era6:#FF7A50; --era7:#22D3E0;
  }
}
:root[data-theme="dark"]{
  --bg:#14171B; --ink:#DDE2E6;
  --era1:#E09B5C; --era2:#D4A72C; --era3:#8FA1AC; --era4:#35C46A; --era5:#5B8DEF; --era6:#FF7A50; --era7:#22D3E0;
}
@supports (color: color-mix(in srgb, red, blue)){
  :root{
    --muted:color-mix(in srgb,var(--ink) 62%,var(--bg));
    --panel:color-mix(in srgb,var(--ink) 4.5%,var(--bg));
    --line:color-mix(in srgb,var(--ink) 20%,var(--bg));
    --land:color-mix(in srgb,var(--ink) 9%,var(--bg));
    --land-line:color-mix(in srgb,var(--ink) 24%,var(--bg));
    --glow:color-mix(in srgb,var(--accent) 18%,transparent);
  }
}

*,*::before,*::after{box-sizing:border-box}
html,body{width:100%;height:100%}
body{
  margin:0;overflow:hidden;
  color:var(--ink);
  background:radial-gradient(circle at 80% 10%,var(--glow),transparent 34rem),var(--bg);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
  transition:background-color .8s var(--ease-inout),color .8s var(--ease-inout);
}
button,input{font:inherit;color:inherit}
button,a{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
a{color:var(--ink)}
a:hover{color:var(--accent)}

.skip{position:fixed;left:-9999px;top:.6rem;z-index:100;background:var(--ink);color:var(--bg);padding:.7em 1.2em;border-radius:8px;font-family:var(--mono);font-size:.85rem;text-decoration:none}
.skip:focus{left:.6rem}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

/* --- Botones estilo museo --- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;
  color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:999px;
  padding:.7em 1em;min-height:44px;cursor:pointer;text-decoration:none;
  transition:border-color .18s,color .18s,background-color .8s var(--ease-inout);
}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:var(--bg)}
.btn-accent:hover{color:var(--bg);filter:brightness(1.08)}
.icon-btn{
  display:grid;place-items:center;width:40px;height:40px;padding:0;
  border:1px solid var(--line);border-radius:12px;background:var(--bg);cursor:pointer;
  transition:border-color .18s,color .18s;
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.icon-btn svg{width:17px;height:17px}
.icon-btn:disabled{opacity:.35;cursor:default}
.icon-btn:disabled:hover{border-color:var(--line);color:inherit}

/* --- Lateral: los 26 objetos --- */
.sidebar{
  position:fixed;z-index:20;inset:0 auto 0 0;width:300px;
  display:flex;flex-direction:column;
  background:var(--bg);border-right:1px solid var(--line);
  transition:background-color .8s var(--ease-inout);
}
.side-head{padding:1rem 1.1rem .85rem;border-bottom:1px solid var(--line)}
.side-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:.7rem}
.back{display:inline-flex;align-items:center;gap:.5em;font-family:var(--mono);font-size:.68rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:var(--muted)}
.back svg{width:15px;height:15px}
.back:hover{color:var(--accent)}
.side-close{display:none;width:36px;height:36px}
.eyebrow{margin:0 0 .3rem;color:var(--accent);font:700 .6rem/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;transition:color .4s}
.side-head h1{margin:0;font-family:var(--serif);font-size:1.45rem;font-weight:600;line-height:1.05;letter-spacing:-.01em}
.side-sub{margin:.45rem 0 0;color:var(--muted);font-size:.74rem;line-height:1.4}
.obj-list{position:relative;flex:1;overflow-y:auto;padding:.4rem 0 .8rem;scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.obj-group h3{
  position:sticky;top:0;z-index:1;margin:0;padding:.75rem 1.1rem .35rem;
  background:var(--bg);color:var(--gc,var(--accent));
  font:700 .6rem/1.2 var(--mono);letter-spacing:.14em;text-transform:uppercase;
  transition:background-color .8s var(--ease-inout);
}
.obj{
  display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:.6rem;
  width:100%;padding:.42rem 1.1rem .42rem calc(1.1rem - 3px);
  border:0;border-left:3px solid transparent;background:transparent;text-align:left;cursor:pointer;
  font-size:.82rem;line-height:1.25;
}
.obj:hover{background:var(--panel)}
.obj-no{color:var(--muted);font:600 .66rem/1 var(--mono)}
.obj-year{color:var(--muted);font:.62rem/1 var(--mono);white-space:nowrap}
.obj.is-future{opacity:.42}
.obj.is-active{border-left-color:var(--c);background:var(--panel)}
.obj.is-active .obj-name{color:var(--c);font-weight:600}
.side-foot{padding:.7rem 1.1rem;border-top:1px solid var(--line)}
.side-foot p{margin:0;color:var(--muted);font:.58rem/1.5 var(--mono)}
.side-open{display:none;position:fixed;z-index:15;top:max(1rem,env(safe-area-inset-top));left:max(1rem,env(safe-area-inset-left))}

/* --- Mapa --- */
.map-shell{position:fixed;z-index:1;inset:0 0 0 var(--sidebar-w)}
#map{position:absolute;inset:0;display:block;width:100%;height:100%;cursor:grab;touch-action:none;user-select:none}
#map.is-dragging{cursor:grabbing}
.graticule{fill:none;stroke:var(--line);stroke-opacity:.35;stroke-width:1;vector-effect:non-scaling-stroke}
.equator{stroke-opacity:.6}
#land{fill:var(--land);stroke:var(--land-line);stroke-width:.75;vector-effect:non-scaling-stroke;transition:fill .5s var(--ease-inout),stroke .5s var(--ease-inout)}
#land.world-active{fill:color-mix(in srgb,var(--accent) 20%,var(--land));stroke:color-mix(in srgb,var(--accent) 45%,var(--land-line))}
/* Sin filtros SVG: un feGaussianBlur sobre países enteros repinta cada fotograma
   y bloquea el hilo principal (era el mayor coste del mapa). */
.region{fill:var(--accent);stroke:color-mix(in srgb,var(--accent) 70%,var(--bg));stroke-width:1.6;vector-effect:non-scaling-stroke;opacity:0;transition:opacity .32s var(--ease-out)}
.region.is-active{opacity:.42}

.origin-halo{pointer-events:none;opacity:0;transition:opacity .25s var(--ease-out)}
.origin-halo.is-active{opacity:1}
.origin-halo .wash{fill:url(#halo-wash)}
#halo-wash stop{stop-color:var(--accent)}
#halo-wash stop:nth-child(1){stop-opacity:.30}
#halo-wash stop:nth-child(2){stop-opacity:.13}
#halo-wash stop:nth-child(3){stop-opacity:0}
.origin-halo .ring{fill:none;stroke:var(--accent);stroke-opacity:.75;stroke-width:1.3;vector-effect:non-scaling-stroke;stroke-dasharray:3 5;animation:halo-spin 18s linear infinite;transform-origin:center}

/* Hilo narrativo: arcos entre objetos consecutivos */
.thread{
  fill:none;stroke:var(--muted);stroke-width:1.1;vector-effect:non-scaling-stroke;
  opacity:0;stroke-dasharray:1;stroke-dashoffset:1;
  transition:stroke-dashoffset .9s var(--ease-out),opacity .4s,stroke .3s;
}
.thread.is-shown{opacity:.45;stroke-dashoffset:0}
.thread.is-active{
  stroke:var(--accent);opacity:.95;stroke-width:1.7;
  stroke-dasharray:.028 .018;stroke-dashoffset:0;
  transition:none;animation:thread-flow 1.5s linear infinite;
}
@keyframes thread-flow{to{stroke-dashoffset:-.046}}

.marker-leader{stroke:var(--muted);stroke-width:1;vector-effect:non-scaling-stroke;opacity:.5}
.map-marker{cursor:pointer;opacity:1;transition:opacity .3s var(--ease-out)}
.map-marker.is-hidden{opacity:0;pointer-events:none}
.marker-visual{transform-origin:0 0}
.marker-hit{fill:transparent}
.marker-ring{fill:var(--bg);stroke:var(--marker-color,var(--muted));stroke-width:1.5;transition:fill .2s,stroke-width .2s}
.marker-core{fill:var(--marker-color,var(--muted));transition:r .2s var(--ease-out)}
.marker-label{fill:var(--bg);font:800 6px/1 var(--mono);text-anchor:middle;dominant-baseline:central;letter-spacing:-.2px;pointer-events:none}
.map-marker:hover .marker-ring,.map-marker:focus .marker-ring,.map-marker.is-active .marker-ring{stroke-width:2.4}
.map-marker:hover .marker-core,.map-marker:focus .marker-core,.map-marker.is-active .marker-core{r:7px}
.map-marker.is-active .marker-ring{animation:marker-pulse 1.8s var(--ease-inout) infinite}
.map-marker.is-past:not(.is-active){opacity:.78}

/* --- Controles superiores --- */
.controls{
  position:fixed;z-index:10;top:max(1rem,env(safe-area-inset-top));right:max(1rem,env(safe-area-inset-right));
  display:flex;flex-direction:column;align-items:flex-end;gap:.5rem;
}
.controls-row{display:flex;gap:.45rem;flex-wrap:wrap;justify-content:flex-end}
#btn-tour .ic-stop{display:none}
#btn-tour[aria-pressed="true"] .ic-play{display:none}
#btn-tour[aria-pressed="true"] .ic-stop{display:block}
#btn-tour svg{width:11px;height:11px;flex:0 0 auto}
.zoom-controls{display:flex;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--bg);transition:background-color .8s var(--ease-inout)}
.zoom-controls button{display:grid;place-items:center;width:42px;height:40px;padding:0;border:0;border-right:1px solid var(--line);background:transparent;cursor:pointer;font:500 1.15rem/1 var(--sans)}
.zoom-controls button:last-child{border-right:0}
.zoom-controls button:hover{color:var(--accent);background:var(--panel)}
.zoom-controls svg{width:15px;height:15px}

/* --- Ficha del objeto --- */
.detail{
  position:fixed;z-index:10;right:max(1rem,env(safe-area-inset-right));
  bottom:calc(var(--tl-h) + 2rem + env(safe-area-inset-bottom));
  width:min(350px,calc(100vw - 2rem));
  padding:1rem 1.1rem .9rem;
  background:var(--bg);border:1px solid var(--line);border-radius:14px;
  box-shadow:0 22px 44px -28px var(--glow),0 16px 40px -30px rgba(0,0,0,.4);
  transition:background-color .8s var(--ease-inout);
}
.detail::before{content:"";position:absolute;top:-1px;left:1.1rem;width:64px;height:2px;border-radius:99px;background:var(--detail-color,var(--accent))}
.detail-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;margin-bottom:.45rem}
.detail-kicker{margin:0;color:var(--detail-color,var(--accent));font:700 .58rem/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase}
.detail-year{color:var(--ink);font:700 .68rem/1 var(--mono);white-space:nowrap}
.detail h2{margin:0;font-family:var(--serif);font-weight:600;font-size:clamp(1.25rem,2.3vw,1.6rem);line-height:1.08;letter-spacing:-.015em}
.detail-place{display:flex;align-items:center;gap:.45rem;margin:.5rem 0 .55rem;color:var(--ink);font-size:.76rem}
.detail-place svg{flex:0 0 13px;width:13px;color:var(--detail-color,var(--accent))}
.detail-text{margin:0;color:var(--muted);font-size:.78rem;line-height:1.5}
.detail-nav{display:flex;justify-content:space-between;gap:.6rem;margin-top:.7rem}
.detail-step{
  display:inline-flex;align-items:center;gap:.35em;max-width:48%;padding:.3em 0;border:0;background:transparent;cursor:pointer;
  color:var(--muted);font:600 .64rem/1.2 var(--mono);text-align:left;
}
.detail-step.next{text-align:right;margin-left:auto}
.detail-step:hover{color:var(--accent)}
.detail-step[hidden]{display:none}
.detail-link{display:inline-flex;align-items:center;gap:.4rem;margin-top:.55rem;color:var(--ink);font:700 .64rem/1 var(--mono);letter-spacing:.05em;text-decoration:none}
.detail-link span{color:var(--detail-color,var(--accent));transition:translate .2s}
.detail-link:hover span{translate:.2rem 0}

/* --- Línea temporal --- */
.timeline-panel{
  position:fixed;z-index:12;
  left:calc(var(--sidebar-w) + 1rem);right:max(1rem,env(safe-area-inset-right));
  bottom:max(1rem,env(safe-area-inset-bottom));
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:1.1rem;
  min-height:var(--tl-h);padding:.7rem 1.1rem;
  background:var(--bg);border:1px solid var(--line);border-radius:16px;
  box-shadow:0 18px 40px -28px rgba(0,0,0,.45);
  transition:background-color .8s var(--ease-inout);
}
.step-btns{display:flex;gap:.4rem}
.timeline-copy{display:flex;align-items:baseline;gap:.7rem;min-width:0;margin:0 0 .3rem}
.timeline-year{flex:0 0 auto;color:var(--accent);font:800 1.15rem/1 var(--mono);font-variant-numeric:tabular-nums;transition:color .4s}
.timeline-name{overflow:hidden;color:var(--muted);font-size:.72rem;line-height:1.1;text-overflow:ellipsis;white-space:nowrap}
.strip-wrap{position:relative;height:30px}
.strip{position:absolute;left:0;right:0;top:11px;display:grid;grid-template-columns:repeat(26,1fr);gap:2px;height:8px;pointer-events:none}
.strip span{border-radius:2px;background:var(--sc);opacity:.22;transition:opacity .25s}
.strip span.is-on{opacity:1}
.strip-cursor{
  position:absolute;top:50%;left:calc((var(--i,0) + .5)*100%/26);translate:-50% -50%;
  width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:3px solid var(--accent);box-shadow:0 0 0 4px var(--glow);
  pointer-events:none;transition:left .18s var(--ease-out),border-color .4s;
}
#time-range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;-webkit-appearance:none;appearance:none}
.strip-wrap:focus-within{outline:2px solid var(--accent);outline-offset:4px;border-radius:6px}
.range-labels{display:flex;justify-content:space-between;margin-top:.15rem;color:var(--muted);font:.56rem/1 var(--mono)}
.all-toggle{display:flex;align-items:center;gap:.55rem;min-width:max-content;padding:.6rem .75rem;border:1px solid var(--line);border-radius:12px;cursor:pointer;font:600 .64rem/1 var(--mono);letter-spacing:.05em;text-transform:uppercase}
.all-toggle:hover{border-color:var(--accent)}
.all-toggle input{position:absolute;width:1px;height:1px;opacity:0}
.switch{position:relative;display:block;width:34px;height:20px;border-radius:99px;background:var(--line);transition:background .2s}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:50%;background:var(--bg);transition:translate .2s var(--ease-out)}
.all-toggle input:checked + .switch{background:var(--accent)}
.all-toggle input:checked + .switch::after{translate:14px 0}
.all-toggle input:focus-visible + .switch{outline:2px solid var(--accent);outline-offset:3px}
.all-count{color:var(--muted);font-weight:500}

.no-script{position:fixed;z-index:100;inset:50% auto auto 50%;translate:-50% -50%;width:min(32rem,calc(100% - 2rem));padding:1.2rem;border:1px solid var(--line);border-radius:14px;background:var(--bg);text-align:center}

@keyframes marker-pulse{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes halo-spin{to{rotate:360deg}}

@media (max-width:900px){
  :root{--sidebar-w:0px;--tl-h:120px}
  .sidebar{width:min(330px,88vw);transform:translateX(-103%);transition:transform .35s var(--ease-out),background-color .8s var(--ease-inout);box-shadow:24px 0 60px -30px rgba(0,0,0,.5);z-index:30}
  .sidebar.open{transform:none}
  .side-open{display:inline-flex}
  .side-close{display:grid}
  .timeline-panel{grid-template-columns:auto minmax(0,1fr);gap:.7rem;row-gap:.5rem}
  .all-toggle{grid-column:1 / -1;justify-content:center}
  .detail{right:1rem;left:auto}
}
@media (max-width:600px){
  .controls-row .btn .lbl{display:none}
  .controls-row .btn{padding:.7em .8em}
  .detail{left:1rem;width:auto}
  .detail-text{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}
}
@media (max-height:640px){
  :root{--tl-h:84px}
  .timeline-panel{padding-block:.5rem}
  .range-labels{display:none}
  .detail-text{display:none}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .obj-list{scroll-behavior:auto}
}