/* Exhibition hall (WebGL) for projekte.html. Progressive enhancement:
   without JS/WebGL, or with "List" chosen, the plain list is shown. */
.vt{display:flex;border:1px solid var(--ink)}
.vt button{font:500 .74rem var(--mono);letter-spacing:.06em;text-transform:uppercase;background:transparent;color:var(--ink);border:0;padding:6px 11px;cursor:pointer}
.vt button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.sh .tools{display:flex;align-items:center;gap:14px}

.hall,.drawer{display:none}
html.hall-on .hall{display:block}
html.hall-on .drawer:not([hidden]){display:flex}
html.hall-on .plist{display:none}
html.hall-on main>section{padding-bottom:0}
html.hall-lock{overflow:hidden}

.hall{position:relative;height:var(--track,695vh)}
.stage{position:sticky;top:var(--navh,57px);height:calc(100vh - var(--navh,57px));height:calc(100svh - var(--navh,57px));overflow:hidden;background:#D6D3CC;isolation:isolate}
.stage .gl{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:pan-y}
.stage::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(130% 100% at 50% 45%,transparent 60%,rgba(30,36,33,.18) 100%)}

.load{position:absolute;inset:0;display:grid;place-content:center;gap:12px;background:#D6D3CC;z-index:3;transition:opacity .6s .2s,visibility 0s .8s}
.load i{display:block;width:180px;height:2px;background:rgba(30,36,33,.15)}.load b{display:block;height:100%;width:0;background:var(--acc);transition:width .3s}
.load.done{opacity:0;visibility:hidden}

.tip{position:absolute;left:0;top:0;z-index:2;pointer-events:none;background:var(--ink);color:var(--paper);font:400 .74rem var(--mono);padding:6px 9px;white-space:nowrap}
.tip b{font:600 .8rem var(--sans)}

.cap{position:absolute;z-index:2;left:max(20px,env(safe-area-inset-left,0px));bottom:76px;width:min(380px,calc(100% - 40px));background:rgba(239,237,232,.94);
  backdrop-filter:blur(6px);border:1px solid var(--line);padding:15px 17px 13px;display:grid;gap:6px;transition:opacity .45s,transform .45s;box-shadow:0 12px 32px rgba(30,36,33,.14)}
.cap[hidden]{display:grid;opacity:0;transform:translateY(10px);pointer-events:none}
.cap h3{font-weight:800;font-size:1.45rem;letter-spacing:-.04em;line-height:1.05;margin:0}
.cap p{margin:0;font-size:.93rem;line-height:1.45}.cap .meta{margin:0;font-size:.72rem}
.cap .go{font:500 .8rem var(--mono);color:var(--acc);text-decoration:none;margin-top:3px}.cap .go:hover{text-decoration:underline}
.cap.end{left:50%;transform:translateX(-50%);text-align:center;justify-items:center;bottom:92px}
.cap.end[hidden]{transform:translate(-50%,10px)}
.cap .ends{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;font:500 .82rem var(--mono)}.cap .ends a{color:var(--acc)}

.idx{position:absolute;z-index:2;left:0;right:0;bottom:0;height:62px;padding:6px max(28px,env(safe-area-inset-left,0px)) 0;
  background:rgba(239,237,232,.92);backdrop-filter:blur(6px);border-top:1px solid var(--line)}
.idx .labels{position:relative;height:22px}
.idx .labels button{position:absolute;top:0;transform:translateX(-50%);border:0;background:transparent;cursor:pointer;font:400 .68rem var(--mono);letter-spacing:.05em;
  color:var(--muted);padding:3px 4px;white-space:nowrap;max-width:15vw;overflow:hidden;text-overflow:ellipsis;transition:color .3s}
.idx .labels button[aria-current="step"]{color:var(--ink);font-weight:600}.idx .labels button:hover{color:var(--ink)}
.idx .rail{position:relative;height:28px;cursor:pointer;touch-action:none;-webkit-user-select:none;user-select:none}
.idx .rail::before{content:"";position:absolute;left:0;right:0;top:50%;height:3px;margin-top:-1.5px;background:var(--line)}
.idx .rail .fill{position:absolute;left:0;top:50%;height:3px;margin-top:-1.5px;width:0;background:var(--acc)}
.idx .rail .tick{position:absolute;top:50%;width:7px;height:7px;margin:-3.5px 0 0 -3.5px;background:var(--paper);border:1.5px solid var(--acc);border-radius:50%}
.idx .thumb{position:absolute;top:50%;left:0;width:22px;height:22px;margin:-11px 0 0 -11px;background:var(--acc);border:3px solid var(--paper);border-radius:50%;
  box-shadow:0 2px 8px rgba(30,36,33,.35);cursor:grab;transition:transform .15s}
.idx .rail.drag .thumb{transform:scale(1.2);cursor:grabbing}
.idx .thumb:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.hint{position:absolute;z-index:2;right:max(20px,env(safe-area-inset-right,0px));bottom:62px;margin:0;font:400 .7rem var(--mono);letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink);background:rgba(239,237,232,.85);padding:6px 9px;transition:opacity .5s;bottom:76px}
.hint.gone{opacity:0}

/* project drawer: the hall stays visible beside it */
.drawer{position:fixed;z-index:6;top:var(--navh,57px);right:0;bottom:0;width:min(600px,46vw);background:var(--paper);border-left:1px solid var(--line);
  flex-direction:column;transform:translateX(100%);transition:transform .55s cubic-bezier(.2,.7,.2,1);box-shadow:-20px 0 50px rgba(30,36,33,.16)}
.drawer.in{transform:none}
.dr-h{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:20px 24px 14px;border-bottom:1px solid var(--line)}
.dr-h h2{font-weight:800;font-size:clamp(1.5rem,2.4vw,2.1rem);letter-spacing:-.045em;line-height:1;margin:6px 0 8px}
.dr-h .meta{margin:0;font-size:.74rem}
.dr-x{flex:none;width:38px;height:38px;border:1px solid var(--ink);background:transparent;font-size:1rem;cursor:pointer;color:var(--ink)}
.dr-x:hover{background:var(--ink);color:var(--paper)}
.dr-b{flex:1;overflow:auto;padding:20px 24px 28px;overscroll-behavior:contain}
.dr-b .pbody{grid-template-columns:1fr;gap:16px;margin-bottom:34px}
.dr-b .ptxt{position:static}
.dr-b .gal{grid-template-columns:1fr 1fr;gap:12px}
.dr-f{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 24px;border-top:1px solid var(--line);font:400 .8rem var(--mono)}
.dr-f a{color:var(--acc);text-decoration:none}.dr-f a:hover{text-decoration:underline}
.dr-f button{border:1px solid var(--line);background:transparent;width:40px;height:32px;cursor:pointer;color:var(--ink)}.dr-f button:hover{border-color:var(--ink)}

@media (max-width:819px){
  .cap{bottom:80px;padding:12px 14px 10px;gap:4px}.cap h3{font-size:1.2rem}.cap p.d{display:none}
  .idx{height:70px;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}.idx .labels button .t{display:none}.idx .rail{height:40px}.idx .thumb{width:28px;height:28px;margin:-14px 0 0 -14px}.hint{display:none}
  .drawer{top:auto;left:0;width:auto;height:62%;height:62svh;border-left:0;border-top:1px solid var(--line);transform:translateY(100%);box-shadow:0 -20px 50px rgba(30,36,33,.18)}
  .dr-h{padding:14px 18px 10px}.dr-b{padding:14px 18px 22px}.dr-f{padding:8px 18px}
  .dr-b .gal{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){.drawer,.cap{transition:none}}

/* scroll settles on each stop of the tour */
@media (pointer:fine){html.hall-on{scroll-snap-type:y proximity}}
html.hall-lock{scroll-snap-type:none}
.hall .snap{position:absolute;left:0;width:1px;height:1px;pointer-events:none;scroll-snap-align:start}

/* permanent switch to the list + welcome note */
.tolist{position:absolute;z-index:4;top:14px;right:max(16px,env(safe-area-inset-right,0px));display:inline-flex;align-items:center;gap:8px;
  background:rgba(239,237,232,.94);backdrop-filter:blur(6px);border:1px solid var(--ink);color:var(--ink);text-decoration:none;
  font:500 .74rem var(--mono);letter-spacing:.06em;text-transform:uppercase;padding:8px 12px}
.tolist::before{content:"";width:12px;height:9px;background:linear-gradient(currentColor 0 0) 0 0/100% 1.5px no-repeat,linear-gradient(currentColor 0 0) 0 50%/100% 1.5px no-repeat,linear-gradient(currentColor 0 0) 0 100%/100% 1.5px no-repeat}
.tolist:hover,.tolist:focus-visible{background:var(--ink);color:var(--paper)}
.intro{position:absolute;inset:0;z-index:5;display:grid;place-items:center;padding:20px;background:rgba(30,36,33,.28);transition:opacity .35s}
.intro.out{opacity:0}
.intro-c{width:min(460px,100%);background:var(--paper);border:1px solid var(--line);padding:24px 24px 20px;display:grid;gap:10px;box-shadow:0 24px 60px rgba(30,36,33,.25)}
.intro-c h2{font-weight:800;font-size:1.7rem;letter-spacing:-.045em;line-height:1.05;margin:2px 0 0}
.intro-c p{margin:0;font-size:.97rem;line-height:1.5}
.intro-b{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:6px}
.intro-b button{font:500 .78rem var(--mono);letter-spacing:.06em;text-transform:uppercase;background:var(--acc);color:var(--band-ink);border:0;padding:11px 16px;cursor:pointer}
.intro-b button:hover{background:var(--ink)}
.intro-b a{font:500 .78rem var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink);border:1px solid var(--ink);padding:10px 15px;text-decoration:none}
.intro-b a:hover{background:var(--ink);color:var(--paper)}
@media (max-width:819px){.tolist{top:10px;padding:7px 10px}.intro-c{padding:18px 18px 16px}.intro-c h2{font-size:1.35rem}}
.intro[hidden]{display:none}