/* Витрина эффектов (/lab) и кнопка к ней из портфолио. Только токены тем: работает на Ночи и на Кальке. */

/* ---------- пиксельный переход (pixel-route.js) ---------- */
.px-grid {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  grid-auto-rows: var(--px);
}
.px-grid i {
  background: var(--accent);
  opacity: 0;
}
.px-grid i.on { opacity: 1; }
html.px-cover::after {
  content: "";
  position: fixed;
  z-index: 1001;
  inset: 0;
  background: var(--accent);
}

/* ---------- кнопка в портфолио ---------- */
.lab-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  margin-top: 32px;
  padding: 10px 22px 10px 10px;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font: var(--weight-medium) 15px/1 var(--font-sans);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color 300ms var(--ease-out), transform 160ms var(--ease-out);
}
.lab-link::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: 7px;
  width: 18px;
  border-top: 1px solid var(--line-strong);
  transform: rotate(-45deg);
  transform-origin: 100% 0;
  transition: border-color 300ms var(--ease-out);
}
.lab-link:hover,
.lab-link:hover::after { border-color: var(--ink); }
.lab-link:active { transform: scale(0.98); }
.lab-link:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
.lab-link__grid {
  display: grid;
  grid-template-columns: repeat(6, 6px);
  gap: 1px;
}
.lab-link__grid i {
  width: 6px;
  height: 6px;
  background: var(--accent);
  opacity: 0.22;
}
.lab-link:hover .lab-link__grid i,
.lab-link:focus-visible .lab-link__grid i { animation: lab-blink 900ms steps(1) var(--d, 0ms) infinite; }
@keyframes lab-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0.22; } }
.lab-link__arrow { transition: transform 300ms var(--ease-out); }
.lab-link:hover .lab-link__arrow { transform: translateX(4px); }

/* ---------- общие детали витрины ---------- */
.lab-card {
  position: relative;
  width: min(320px, 100%);
  padding: 14px 16px 18px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}
.lab-card::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: 10px;
  width: 23px;
  border-top: 1px solid var(--line-strong);
  transform: rotate(-45deg);
  transform-origin: 100% 0;
}
.lab-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font: 400 13px/1.5 var(--font-mono);
}
.lab-card__tab {
  display: inline-block;
  padding: 4px 6px;
  background: var(--ink);
  color: var(--canvas);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lab-replay {
  min-height: 44px;
  margin-top: 28px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: none;
  color: var(--ink);
  font: 500 12px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-radius 700ms var(--ease-expo), background-color 700ms var(--ease-expo), color 700ms var(--ease-expo), border-color 700ms var(--ease-expo);
}
.lab-replay:hover { border-color: var(--ink); border-radius: 4px; background: var(--ink); color: var(--canvas); }
.lab-replay:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }

/* ---------- первый экран: предмет в центре, выноски вокруг ---------- */
.lab-hero {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 640px;
  overflow: hidden;
  background: var(--canvas);
}
.lab-hero canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 900ms ease;
}
.lab-hero.is-live canvas { opacity: 1; }
.lab-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, var(--canvas) 0, color-mix(in srgb, var(--canvas) 0%, transparent) 30%),
    linear-gradient(0deg, var(--canvas) 0, color-mix(in srgb, var(--canvas) 0%, transparent) 22%);
}
.lab-hero > :not(canvas) { z-index: 2; }
.lab-hero__head {
  position: relative;
  padding-top: calc(var(--header-height) + clamp(24px, 5vh, 56px));
  pointer-events: none;
}
.lab-hero h1 {
  max-width: 9ch;
  margin: 0;
  font-weight: var(--weight-display);
  font-stretch: var(--stretch-display);
  font-size: clamp(56px, 8.4vw, 148px);
  line-height: 0.88;
  letter-spacing: -0.045em;
}
.lab-hero__card {
  position: absolute;
  top: calc(var(--header-height) + clamp(24px, 5vh, 56px));
  right: var(--gutter);
}
.lab-hero.is-static canvas,
.lab-hero.is-static .lab-notes,
.lab-hero.is-static .lab-stations { display: none; }

.lab-notes {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  pointer-events: none;
}
.lab-note {
  position: absolute;
  width: clamp(200px, 22vw, 340px);
  visibility: hidden;
}
.lab-note.is-on { visibility: visible; }
.lab-note.is-a { left: 12%; top: 40%; }
.lab-note.is-b { right: 12%; top: 62%; text-align: right; }
.lab-note__text {
  display: block;
  min-height: 2.9em;
  padding-bottom: 6px;
  color: var(--ink);
  font: 500 12px/1.45 var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.lab-note__line {
  display: block;
  width: 100%;
  height: 56px;
  overflow: visible;
}
.lab-note.is-b .lab-note__line { transform: scale(-1, -1); }
.lab-note.is-b .lab-note__text { position: absolute; top: 100%; right: 0; padding: 6px 0 0; }
.lab-note__line polyline {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 1;
}
.lab-note__dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--ink);
  background: var(--canvas);
}
.lab-note__dot::after { content: ""; position: absolute; inset: 3px; background: var(--ink); }
.lab-note.is-a .lab-note__dot { right: -7px; bottom: -7px; }
.lab-note.is-b .lab-note__dot { left: -7px; top: -7px; }

.lab-stations {
  position: absolute;
  left: 50%;
  bottom: clamp(24px, 5vh, 48px);
  display: flex;
  transform: translateX(-50%);
}
.lab-stations button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  margin-left: -1px;
  background: var(--canvas);
  color: var(--muted);
  font: 500 12px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 700ms var(--ease-expo), background-color 700ms var(--ease-expo), border-radius 700ms var(--ease-expo);
}
.lab-stations button:hover { color: var(--ink); border-radius: 4px; }
.lab-stations button[aria-pressed="true"] { background: var(--ink); color: var(--canvas); }
.lab-stations button:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; position: relative; }

.lab-index {
  position: absolute;
  left: var(--gutter);
  bottom: clamp(24px, 5vh, 48px);
  display: grid;
  width: 220px;
  font: 500 12px/1 var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.lab-index__title { padding-bottom: 10px; color: var(--ink); }
.lab-index a {
  padding: 10px 0;
  background: linear-gradient(var(--line-strong), var(--line-strong)) no-repeat 0 0 / 100% 1px;
  color: var(--muted);
  text-decoration: none;
  transition: color 300ms var(--ease-out);
}
.lab-index a:hover { color: var(--ink); }

/* ---------- экспонаты ---------- */
.lab-exhibit { padding-block: var(--section-space); }
.lab-exhibit__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: clamp(32px, 5vw, 72px);
}
.lab-exhibit h2,
.lab-hole h2 {
  margin: 0;
  font-weight: var(--weight-display);
  font-stretch: var(--stretch-display);
  font-size: clamp(44px, 6.2vw, 108px);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.lab-hole {
  --hero-fade: 160px;
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: 100vh;
  min-height: 100svh;
  padding-bottom: var(--section-space);
  background: var(--hero-base);
}
.lab-hole canvas {
  position: absolute;
  z-index: -1;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 900ms ease;
}
.lab-hole[data-webgl="ready"] canvas { opacity: 1; }
.lab-hole[data-hero-fade="css"] canvas {
  -webkit-mask-image: linear-gradient(180deg, #000 calc(100% - var(--hero-fade)), transparent);
  mask-image: linear-gradient(180deg, #000 calc(100% - var(--hero-fade)), transparent);
}
.lab-hole .lab-exhibit__head { margin-bottom: 0; }

/* схема подгружается позже — место под неё держим заранее, чтобы страница не прыгала */
[data-lab-figure]:empty { min-height: min(900px, 110vw); }

.lab-type .lab-card__tab,
.lab-pixel .lab-card__tab { margin-bottom: 28px; }
.lab-type h2 {
  max-width: 15ch;
  font-size: clamp(44px, 7.6vw, 132px);
}
.lab-pixel h2 { max-width: 12ch; }

/* ---------- вступление: пока JS не начал, первый экран и шапка скрыты ---------- */
html.lab-intro .lab-hero > *,
html.lab-intro .site-header { visibility: hidden; }

/* заставка */
.lab-loader { display: none; }
html.lab-loading .lab-loader {
  position: fixed;
  z-index: 999;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--canvas);
}
.lab-loader__mark { display: grid; justify-items: center; gap: 14px; visibility: hidden; }
.lab-loader.is-on .lab-loader__mark { visibility: visible; }
.lab-loader__word {
  position: relative;
  font-weight: var(--weight-display);
  font-stretch: var(--stretch-display);
  font-size: clamp(64px, 9vw, 150px);
  line-height: 0.9;
  letter-spacing: -0.045em;
}
.lab-loader__sub {
  min-height: 1em;
  color: var(--muted);
  font: 500 12px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lab-cells {
  position: absolute;
  inset: 0;
  display: grid;
  overflow: hidden;
}
.lab-cells i { background: var(--canvas); }
.lab-loader__bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--line);
}
.lab-loader__bar i {
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: 0 50%;
}
.lab-loader__pct {
  position: absolute;
  right: var(--gutter);
  bottom: 14px;
  color: var(--ink);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lab-loader__pct b { font-weight: inherit; }

/* сетка первого экрана: тонкие линии и крестики на пересечениях */
.lab-grid { position: absolute; inset: 0; pointer-events: none; }
.lab-grid i { position: absolute; background: color-mix(in srgb, var(--ink) 7%, transparent); }
.lab-grid i.v { top: 0; bottom: 0; width: 1px; transform-origin: 50% 0; }
.lab-grid i.h { left: 0; right: 0; height: 1px; transform-origin: 0 50%; }
.lab-grid b {
  position: absolute;
  width: 11px;
  height: 11px;
  margin: -5px 0 0 -5px;
  background:
    linear-gradient(var(--subtle), var(--subtle)) no-repeat 50% 0 / 1px 100%,
    linear-gradient(var(--subtle), var(--subtle)) no-repeat 0 50% / 100% 1px;
}

/* мутные квадраты поверх предмета */
.lab-glitch { position: absolute; inset: 0; pointer-events: none; }
.lab-glitch i {
  position: absolute;
  background: color-mix(in srgb, var(--ink) 4%, transparent);
  -webkit-backdrop-filter: blur(9px) saturate(1.3);
  backdrop-filter: blur(9px) saturate(1.3);
}

/* бегущая строка в карточке */
.lab-marquee {
  display: flex;
  overflow: hidden;
  margin-top: 10px;
  padding-block: 6px;
  border-block: 1px solid var(--line);
  color: var(--subtle);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.lab-marquee > span { flex: none; padding-right: 0.5em; animation: lab-marquee 10s linear infinite; }
@keyframes lab-marquee { to { transform: translateX(-100%); } }

/* искра в большом заголовке: большая звезда крутится туда-обратно, малая пульсирует */
.lab-spark { display: inline-block; width: 0.62em; margin-right: 0.12em; vertical-align: 0.02em; }
.lab-spark svg { display: block; width: 100%; overflow: visible; fill: var(--accent); }
.lab-spark path { transform-box: fill-box; transform-origin: center; }
.lab-spark path:first-child { animation: lab-spin 3.5s var(--ease-expo-io) infinite alternate; }
.lab-spark path:last-child { animation: lab-pulse 1s var(--ease-expo) infinite; }
@keyframes lab-spin { to { transform: rotate(360deg); } }
@keyframes lab-pulse { 50% { transform: scale(0.8); } }

@media (max-width: 900px) {
  .lab-hero__card,
  .lab-notes,
  .lab-index { display: none; }
  .lab-stations { left: var(--gutter); right: var(--gutter); transform: none; }
  .lab-stations button { flex: 1; padding: 0 6px; }
  .lab-exhibit__head { display: block; }
  .lab-exhibit__head .lab-card { margin-top: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .lab-marquee > span,
  .lab-spark path { animation: none; }
  .lab-link:hover .lab-link__grid i { animation: none; opacity: 1; }
}