/* 00 · corridor (sections/corridor.js). Scroll to walk: a tall room, a pinned scene, doors that pass by.
   corridor.js sets the geometry on .corridor-room: --u (one unit), --floor, --zero-x, --zh, --track-w, --h, --w. */

.corridor-room { position: relative; height: var(--h, 320svh); margin-top: clamp(1.5rem, 4svh, 3rem); }
.corridor-scene { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; overflow: clip; background: var(--paper); }
.corridor-track { position: absolute; left: 0; top: 0; height: 100%; width: var(--track-w, 100%); will-change: transform; transform: translate3d(0, 0, 0); }
.corridor-lines { position: absolute; inset: 0; pointer-events: none; }
.corridor-lines svg { position: absolute; left: 0; max-width: none; overflow: visible; }
.corridor-floor path { fill: none; stroke: var(--ink); stroke-linecap: round; stroke-linejoin: round; }
.corridor-receipt { z-index: 3; }
.corridor-receipt__edge { stroke: var(--ink); }
.corridor-receipt__paper { stroke: var(--paper); }
.corridor-receipt text { font: 800 clamp(10px, calc(1.42 * var(--u, 9px)), 15px) / 1 var(--serif); fill: var(--ink); letter-spacing: 0.04em; }

/* ------------------------------------------------------------ doors */
.corridor-door { position: absolute; top: 0; height: 100%; width: calc(32.75 * var(--u)); z-index: 1; }
.corridor-door__btn { position: absolute; left: 0; width: 100%; top: calc(var(--floor) - 54.487 * var(--u)); height: calc(55.5 * var(--u)); display: block; cursor: url("../../../shared/art/cursors/hand.png") 20 4, pointer; }
.corridor-door__leaf { position: absolute; inset: 0; display: block; }
.corridor-door__leaf img { position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; user-select: none; -webkit-user-drag: none; }
.corridor-door__open { opacity: 0; transition: opacity 0.01s linear 0.34s; }
.corridor-door__closed, .corridor-door__plate { transition: opacity 0.3s var(--settle); }
.corridor-door.is-open .corridor-door__open { opacity: 1; transition-delay: 0s; }
.corridor-door.is-open .corridor-door__closed, .corridor-door.is-open .corridor-door__plate { opacity: 0; transition-duration: 0.26s; }
/* the plate label sits on the drawn plate */
.corridor-door__plate {
  /* the drawn plate is at 40.7–59.2 % across and 23.3–28.5 % down the door; the name sits engraved in it */
  position: absolute; left: 40.7%; top: 23.3%; width: 18.5%; height: 5.2%; display: grid; place-items: center; padding: 0 3%;
  font: 700 clamp(5px, calc(0.95 * var(--u, 9px)), 10px)/1.05 var(--sans); letter-spacing: 0.06em; text-transform: uppercase; text-align: center;
  color: color-mix(in srgb, #10110f 82%, #f3ff97); text-shadow: 0 0.5px 0 rgba(255, 255, 255, 0.55), 0 -0.5px 0 rgba(16, 17, 15, 0.35);
  pointer-events: none; white-space: normal; overflow: hidden;
}
.corridor-door__name {
  position: absolute; left: calc(1.5 * var(--u)); width: calc(38 * var(--u));
  bottom: calc(100% - var(--floor) + 56.4 * var(--u));
  font-size: clamp(1.3rem, calc(3.1 * var(--u)), 2.2rem); line-height: 1.02; text-wrap: balance;
}
/* the line: beside the door on a wide screen, in the wall between doors */
.corridor-door__line {
  position: absolute; left: calc(36 * var(--u)); width: calc(30 * var(--u));
  top: calc(var(--floor) - 40 * var(--u));
  font-size: clamp(1.25rem, calc(2.9 * var(--u)), 2rem); line-height: 1.06; text-wrap: balance;
  opacity: 0; transform: translate3d(0, 10px, 0);
  transition: opacity 0.4s var(--settle), transform 0.4s var(--settle);
}
.corridor-door.is-in .corridor-door__line { opacity: 1; transform: none; transition-duration: 0.55s; transition-delay: 0.1s; }

/* ------------------------------------------------------------ Zero walks with you */
.corridor-walker { position: absolute; z-index: 5; left: var(--zero-x); top: var(--floor); width: 0; height: 0; pointer-events: none; }
.corridor-walker img { position: absolute; left: 0; bottom: 0; width: auto; max-width: none; opacity: 0; }
.corridor-walker__f { height: calc(var(--zh) * 1.0752); transform: translate(-49.3%, 2.95%) scaleX(var(--dir, 1)); }
.corridor-walker__back {
  /* the walk frames carry a small transparent patch low in the body: this keeps the doors from showing through */
  position: absolute; background: var(--paper);
  width: calc(var(--zh) * 0.12); height: calc(var(--zh) * var(--back-h, 0.1));
  left: calc(var(--zh) * -0.06 + var(--dir, 1) * var(--zh) * 0.017);
  bottom: calc(var(--zh) * var(--back-b, 0.355));
  border-radius: 0 0 50% 50% / 0 0 88% 88%;
  opacity: 0;
}
.corridor-walker.is-walking .corridor-walker__back { opacity: 1; }
html[data-lights="off"] .corridor-walker__back, html[data-night="on"] .corridor-walker__back { display: none; }
.corridor-walker__f.is-on, .corridor-walker__p.is-on { opacity: 1; }
.corridor-walker__p { --ps: 1.06; }
.corridor-walker__p[data-pose="hello"] { height: calc(var(--zh) * 463 / 505 * var(--ps)); transform: translate(-61.9%, 2.6%); }
.corridor-walker__p[data-pose="neutral"] { height: calc(var(--zh) * 470 / 505 * var(--ps)); transform: translate(-50.5%, 2.55%); }

/* ------------------------------------------------------------ on a phone: the wall above, the words beneath the floor */
.corridor-room.is-phone .corridor-door__name { left: calc(1 * var(--u)); width: calc(31 * var(--u)); font-size: clamp(1.05rem, calc(3.4 * var(--u)), 1.6rem); bottom: calc(100% - var(--floor) + 55.8 * var(--u)); }
.corridor-room.is-phone .corridor-door__line { left: 0; width: min(calc(var(--w) - 2.5rem), 30rem); top: calc(var(--floor) + 9.5 * var(--u)); font-size: clamp(1.4rem, calc(4.4 * var(--u)), 2rem); will-change: transform; transition: opacity 0.4s var(--settle); }
.corridor-room.is-phone .corridor-door.is-in .corridor-door__line { transition: opacity 0.5s var(--settle) 0.16s; }

/* ------------------------------------------------------------ STACK: reduced motion, or a very short window */
.corridor-room.is-stack { height: auto; padding: 0 var(--edge, 1.25rem) clamp(3rem, 8vw, 6rem); }
.corridor-room.is-stack .corridor-scene { position: static; height: auto; overflow: visible; }
.corridor-room.is-stack .corridor-track { position: static; width: auto; height: auto; transform: none; display: grid; gap: clamp(1.5rem, 4vw, 3rem); max-width: 108rem; margin: 0 auto; }
.corridor-room.is-stack .corridor-lines, .corridor-room.is-stack .corridor-walker { display: none; }
.corridor-room.is-stack .corridor-door { position: relative; width: auto; height: auto; display: grid; grid-template-columns: minmax(7rem, 11rem) minmax(0, 1fr); gap: clamp(1rem, 4vw, 3rem); align-items: end; padding-top: clamp(1.5rem, 4vw, 3rem); border-top: 1px solid var(--gray-line); }
.corridor-room.is-stack .corridor-door__btn { position: relative; top: auto; height: auto; aspect-ratio: 986 / 1671; grid-column: 1; grid-row: 1 / span 2; border-bottom: 2px solid var(--ink); }
.corridor-room.is-stack .corridor-door__plate { font-size: 0.6rem; }
.corridor-room.is-stack .corridor-door__name { position: static; width: auto; grid-column: 2; grid-row: 1; font-size: clamp(1.5rem, 2.6vw, 2.4rem); align-self: end; }
.corridor-room.is-stack .corridor-door__line { position: static; width: auto; grid-column: 2; grid-row: 2; align-self: start; max-width: 30rem; font-size: clamp(1.2rem, 2vw, 1.7rem); opacity: 1; transform: none; transition: none; margin: 0.6rem 0 0.4rem; }
.corridor-room.is-stack .corridor-door:not(.is-seen) .corridor-door__line, .corridor-room.is-stack .corridor-door:not(.is-seen) .corridor-door__name { opacity: 0; }

@media (max-width: 700px) {
  .corridor-room.is-stack .corridor-door { grid-template-columns: 6rem minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .corridor-door__line, .corridor-door__open, .corridor-door__closed, .corridor-door__plate { transition: none; }
}

/* ---------------------------------------------------------- the room behind a door (ctx.fullscreen) */
.corridor-host { display: grid; }
.corridor-view { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(1.5rem, 5vw, 6rem); align-items: center; height: 100%; min-height: 0; padding: clamp(1.5rem, 4vh, 3.5rem) var(--edge, 2rem); max-width: 108rem; margin: 0 auto; width: 100%; }
.corridor-view__text .q-pretitle { margin-bottom: 1.2rem; }
.corridor-view__text .q-h1 { margin-bottom: 1.2rem; font-size: clamp(2.2rem, 4.4vw, 4.2rem); }
.corridor-view__text .q-body { max-width: 30rem; }
.corridor-view__art { min-height: 0; height: 100%; display: flex; align-items: center; justify-content: center; }
.corridor-view__art img { max-height: min(100%, 76svh); width: auto; max-width: 100%; }
.corridor-view [data-settle] { opacity: 0; transform: translateY(14px); transition: opacity 0.6s var(--settle), transform 0.6s var(--settle); transition-delay: calc(var(--i, 0) * 0.12s + 0.1s); }
.corridor-view.is-current [data-settle] { opacity: 1; transform: none; }
/* the door's name lives on its plate; nothing above the door while walking */
.corridor-room:not(.is-stack) .corridor-door__name { display: none; }
@media (max-width: 880px) {
  .corridor-view { grid-template-columns: minmax(0, 1fr); align-content: start; gap: 1.5rem; overflow: auto; }
  .corridor-view__art img { max-height: 42svh; }
}
@media (prefers-reduced-motion: reduce) { .corridor-view [data-settle] { transition: none; opacity: 1; transform: none; } }

/* ---------------------------------------------------------- what Zero says, and the walking arrows */
.corridor-say { position: absolute; left: 50%; bottom: calc(var(--zh, 20rem) + 1.1rem); translate: -50% 0; margin: 0; padding: 0.55rem 0.8rem 0.5rem; background: var(--paper); color: var(--ink); box-shadow: 0 0 0 2px var(--ink); font: 800 1.05rem/1.1 var(--serif); white-space: nowrap; opacity: 0; transform: translateY(6px); transition: opacity 0.25s var(--settle), transform 0.25s var(--settle); pointer-events: none; }
.corridor-say::after { content: ""; position: absolute; left: 50%; top: 100%; width: 0.8rem; height: 0.8rem; translate: -50% -55%; rotate: 45deg; background: var(--paper); box-shadow: 2px 2px 0 0 var(--ink); }
.corridor-say.is-on { opacity: 1; transform: none; }
.corridor-arrows { display: none !important; position: absolute; z-index: 8; left: 50%; bottom: clamp(1rem, 4svh, 2.5rem); translate: -50% 0; display: flex; gap: 0.75rem; }
.corridor-arrow { width: 3rem; height: 3rem; display: grid; place-items: center; background: var(--paper); box-shadow: inset 0 0 0 2px var(--ink); cursor: pointer; touch-action: none; }
.corridor-arrow::before { content: ""; width: 0.6rem; height: 0.6rem; border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(45deg) translate(2px, -2px); }
.corridor-arrow--right::before { transform: rotate(-135deg) translate(2px, -2px); }
.corridor-arrow:hover, .corridor-arrow.is-held { background: var(--canton); }
.corridor-room.is-stack .corridor-arrows { display: none; }

/* ---------------------------------------------------------- as a part: the receipt on top, the corridor full width behind it */
.part--corridor { position: relative; }
.part--corridor .part__copy { grid-column: 1; grid-row: 1; z-index: 1; min-height: var(--corridor-h, 320svh); }
.part--corridor .part__stage { grid-column: 1 / -1; grid-row: 1; z-index: 0; width: 100vw; margin-left: calc(50% - 50vw); padding: 0; display: block; }
.part--corridor .corridor-room { height: 100%; margin-top: 0; }
.part--corridor .corridor-scene { background: transparent; }
.part--corridor .part__stage img { max-height: none; }
@media (max-width: 880px) {
  .part--corridor .part__stage { grid-column: 1; grid-row: 2; position: relative; width: 100%; margin-left: 0; height: auto; }
  .part--corridor .part__copy { min-height: 0; }
  .part--corridor .corridor-room { height: var(--h, 320svh); }
}