:root{
  --bg:#212121; /* negro al 87% */
  --bg-2:#2c2c2c;
  --bg-3:#383838;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.22);
  --text:#e4e4e2;
  --muted:#8e8e8a;
  --accent:#00ff66;
  --ease:cubic-bezier(.7,0,.2,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --f:"Source Code Pro",ui-monospace,monospace;
  --t-xs:11px; --t-sm:12.5px; --t-md:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);color:var(--text)}
body{font-family:var(--f);font-weight:350;font-size:var(--t-sm);line-height:1.5;
  overflow:hidden;-webkit-font-smoothing:antialiased;letter-spacing:.01em}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
:focus-visible{outline:1px solid var(--accent);outline-offset:3px}
.muted{color:var(--muted)}
[hidden]{display:none!important}

/* grano sutil */
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:60;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- header ---------- */
.top{position:fixed;inset:0 0 auto 0;z-index:30;display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;padding:14px 18px;pointer-events:none}
.top>*{pointer-events:auto}
.brand{color:var(--text);display:inline-flex;width:max-content}
.modes{display:flex;gap:4px}
.modes button{background:var(--bg-2);padding:5px 10px 5px 11px;font-size:var(--t-sm);
  transition:background .25s,color .25s}
.modes button sup{font-size:9px;margin-left:5px;color:var(--muted);vertical-align:super}
.modes button:hover{background:var(--bg-3)}
.modes button[aria-pressed="true"]{background:var(--text);color:var(--bg)}
.modes button[aria-pressed="true"] sup{color:var(--bg)}
.aux{justify-self:end;display:flex;gap:18px}
.aux>*{position:relative}
.aux>*:hover{color:var(--accent)}

/* ---------- stage ---------- */
#stage{position:fixed;inset:0;overflow:hidden;touch-action:manipulation}
#track{position:absolute;left:0;top:0;height:100%;will-change:transform}
#track.animating{transition:transform 1s var(--ease)}
#lines{position:absolute;left:0;top:0;overflow:visible;pointer-events:none}
#lines path,#lines line{fill:none;stroke:var(--line);stroke-width:1;transition:stroke .3s,opacity .6s}
#lines .on{stroke:var(--accent);opacity:.9}
#lines .drift{stroke:var(--line-2);stroke-dasharray:2 6}

.item{position:absolute;left:0;top:0;display:block;transform-origin:50% 50%;will-change:transform;
  transition:opacity .45s,filter .45s}
.animating .item{transition:transform 1s var(--ease),width 1s var(--ease),height 1s var(--ease),opacity .45s,filter .45s}
.item .frame{position:absolute;inset:0;overflow:hidden;background:var(--bg-2)}
.item img{width:100%;height:100%;object-fit:cover;display:block;user-select:none;-webkit-user-drag:none;
  transition:transform .8s var(--ease-out),filter .5s}
.item:hover img,.item:focus-visible img{transform:scale(1.035)}
.item .num{position:absolute;left:0;top:-17px;font-size:var(--t-xs);color:var(--muted);transition:color .3s}
.item .cap{position:absolute;left:0;top:calc(100% + 7px);width:max-content;max-width:260px;font-size:var(--t-xs);
  line-height:1.35;color:var(--muted);transition:opacity .4s,color .3s}
.item .cap b{display:block;color:var(--text);font-weight:500}
.item:hover .num,.item:focus-visible .num{color:var(--accent)}
.item.dim{opacity:.14;filter:grayscale(1)}
.item.hl .frame{outline:1px solid var(--accent);outline-offset:4px}
body[data-mode="constelacion"] .item .cap{opacity:0}
body[data-mode="constelacion"] .item:hover .cap,
body[data-mode="constelacion"] .item:focus-visible .cap{opacity:1}
body[data-mode="constelacion"] .item:hover{z-index:5}
body[data-mode="indice"] #track{opacity:0;pointer-events:none}
#track{transition:opacity .5s}

/* ---------- índice ---------- */
#indexView{position:fixed;inset:0;overflow-y:auto;padding:110px 18px 120px;touch-action:pan-y;cursor:default;z-index:4}
#indexList{list-style:none;max-width:1100px;margin:0 auto;border-top:1px solid var(--line)}
#indexList li{border-bottom:1px solid var(--line)}
#indexList button{width:100%;display:grid;grid-template-columns:56px 1.6fr 1fr 1fr;gap:16px;
  padding:12px 0;text-align:left;font-size:var(--t-md);transition:color .2s,padding .35s var(--ease-out)}
#indexList button span:nth-child(1),#indexList button span:nth-child(3),#indexList button span:nth-child(4){color:var(--muted);font-size:var(--t-sm);padding-top:2px}
#indexList button:hover{color:var(--accent);padding-left:10px}
#indexPreview{position:fixed;left:0;top:0;width:297px;pointer-events:none;opacity:0;transition:opacity .25s;z-index:6}
#indexPreview img{width:100%;display:block}
#indexPreview.on{opacity:1}

/* ---------- hud ---------- */
.hud{position:fixed;inset:auto 0 0 0;z-index:20;display:grid;grid-template-columns:1fr auto 1fr;align-items:end;
  padding:0 18px 16px;pointer-events:none;font-size:var(--t-xs)}
.hud-left{min-height:2.8em;max-width:64ch}
.hud-left b{display:block;font-weight:500;color:var(--text);font-size:var(--t-sm)}
.hud-center{font-size:var(--t-md);font-variant-numeric:tabular-nums}
.hud-right{justify-self:end;color:var(--muted)}

#legend{position:fixed;left:18px;top:62px;z-index:20;display:flex;flex-direction:column;gap:3px;
  opacity:0;pointer-events:none;transition:opacity .5s;background:color-mix(in srgb,var(--bg) 80%,transparent);padding:4px 8px 6px 0}
body[data-mode="constelacion"] #legend{opacity:1;pointer-events:auto}
#legend p{font-size:var(--t-xs);color:var(--muted);margin-bottom:4px}
#legend button{text-align:left;font-size:var(--t-sm);color:var(--muted);display:flex;gap:8px;align-items:center}
#legend button::before{content:"";width:7px;height:7px;border:1px solid currentColor}
#legend button:hover{color:var(--text)}
#legend button[aria-pressed="true"]{color:var(--accent)}
#legend button[aria-pressed="true"]::before{background:var(--accent)}

/* ---------- proyecto ---------- */
#project,#manifiesto{position:fixed;inset:0;z-index:40;background:var(--bg);
  animation:fadeIn .5s var(--ease-out)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.p-scroll{height:100%;overflow-y:auto;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,1fr);
  gap:48px;padding:72px 18px 60px}
.p-media{display:flex;flex-direction:column;gap:18px}
.p-media img{width:100%;height:auto;display:block;max-height:calc(100vh - 140px);object-fit:contain;object-position:left top;
  animation:rise .9s var(--ease-out)}
.p-media .video{position:relative;aspect-ratio:16/9;background:#000}
.p-media iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.p-text{position:sticky;top:0;align-self:start;max-width:46ch;padding-top:4px;animation:rise 1s .08s var(--ease-out) both}
.p-meta{display:flex;justify-content:space-between;font-size:var(--t-xs);color:var(--muted);
  border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:22px}
.p-meta #pNum{color:var(--accent)}
.p-text h2{font-size:clamp(26px,3.2vw,44px);font-weight:600;line-height:1.02;letter-spacing:-.02em;margin-bottom:22px;text-wrap:balance}
.p-lead{font-size:var(--t-md);font-weight:450;margin-bottom:18px;text-wrap:pretty}
.p-body p{color:#c4c4c0;margin-bottom:12px;text-wrap:pretty}
.p-tags{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:24px 0}
.p-tags li{font-size:var(--t-xs);border:1px solid var(--line-2);padding:2px 7px;color:var(--muted)}
.p-nav{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px}
.p-nav button:hover,.close:hover{color:var(--accent)}
.close{position:fixed;top:14px;right:18px;z-index:45;font-size:var(--t-sm);background:var(--bg-2);padding:5px 10px}

#manifiesto{display:grid;place-items:center;padding:80px 18px}
.m-inner{max-width:62ch;animation:rise 1s var(--ease-out)}
.m-inner p{color:#c4c4c0;margin-bottom:16px;font-size:var(--t-md)}
.m-inner .m-high{font-size:clamp(20px,2.4vw,30px);line-height:1.2;font-weight:500;color:var(--text);letter-spacing:-.01em;margin-bottom:28px;text-wrap:balance}
.m-inner b{color:var(--accent);font-weight:500}
.m-sign{font-size:var(--t-xs)!important;color:var(--muted)!important;margin-top:28px}

/* ---------- responsive ---------- */
@media (max-width:760px){
  .top{grid-template-columns:auto 1fr;row-gap:10px;padding:12px}
  .modes{grid-column:1/-1;grid-row:2;justify-content:flex-start}
  .modes button{font-size:var(--t-xs);padding:4px 8px}
  .aux{gap:12px;font-size:var(--t-xs)}
  .hud{padding:0 12px 14px}
  .hud-right{display:none}
  .hud{grid-template-columns:1fr auto}
  #legend{top:auto;bottom:64px;left:12px;flex-direction:row;flex-wrap:wrap;gap:4px 12px;max-width:calc(100% - 24px)}
  #legend p{width:100%;margin:0}
  #indexView{padding:110px 12px 100px}
  #indexList button{grid-template-columns:38px 1fr;gap:4px 10px;font-size:var(--t-sm)}
  #indexList button span:nth-child(3){grid-column:2}
  #indexList button span:nth-child(4){display:none}
  #indexPreview{display:none}
  .p-scroll{grid-template-columns:1fr;gap:28px;padding:64px 12px 48px}
  .p-text{position:static}
  .close{right:12px;top:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}