@font-face {
  font-family: "Bodoni Moda";
  src: url("type/bodoni-500.woff2") format("woff2");
  font-weight: 500 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Bodoni Moda";
  src: url("type/bodoni-500i.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("type/sourcesans-400.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("type/sourcesans-400i.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("type/plexmono-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("type/plexmono-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  --bone: #f4efe6;
  --bone-deep: #e7dfd1;
  --ink: #161412;
  --ink-soft: #4a443c;
  --retina: #b4232a;
  --retina-dim: #8a1b21;
  --smoke: #12100e;
  --glass: #1c1916;
  --slit: 1.5px;
  --label: 2.7rem;
  --measure: 62ch;
  --fs-0: 0.72rem;
  --fs-1: 0.95rem;
  --fs-2: 1.08rem;
  --fs-3: 1.4rem;
  --pad: clamp(1rem, 3.2vw, 2.4rem);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bone);
}

body.exam-lane {
  margin: 0;
  min-height: 100%;
  background: var(--bone);
  color: var(--ink);
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  font-size: var(--fs-1);
  line-height: 1.55;
  cursor: none;
}

body.exam-lane.is-touch { cursor: auto; }

.skip-lane {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  z-index: 40;
  padding: 0.5rem 0.8rem;
  background: var(--ink);
  color: var(--bone);
  text-decoration: none;
}
.skip-lane:focus { top: 0.75rem; }

.film-grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 30;
  opacity: 0.065;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

.slit-cursor {
  pointer-events: none;
  position: fixed;
  z-index: 50;
  width: 46px;
  height: 2px;
  margin: -1px 0 0 -23px;
  background: var(--retina);
  box-shadow: 0 0 0 1px rgba(244, 239, 230, 0.35);
}

.case-label {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.2rem 0.9rem;
  align-items: center;
  min-height: var(--label);
  padding: 0.35rem var(--pad);
  background: var(--bone);
  border-bottom: var(--slit) solid var(--ink);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.case-id,
.case-win { margin: 0; color: var(--ink-soft); }
.case-win output { color: var(--retina); }
.case-nav {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: nowrap;
  gap: 0.85rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.case-nav a {
  flex: 0 0 auto;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.case-nav a:hover,
.case-nav a:focus-visible {
  border-bottom-color: var(--retina);
  color: var(--retina);
}

.plaque {
  padding: 1.05rem var(--pad) 0.85rem;
  background: var(--bone);
  max-width: 52rem;
}
.sym {
  margin: 0 0 0.15rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--retina);
}
h1 {
  margin: 0;
  font-family: "Bodoni Moda", "Times New Roman", serif;
  font-weight: 500;
  font-size: clamp(2.35rem, 11vw, 4.8rem);
  letter-spacing: -0.032em;
  line-height: 0.9;
}
.hook {
  margin: 0.65rem 0 0;
  max-width: 34rem;
  font-size: var(--fs-2);
  line-height: 1.35;
  color: var(--ink);
}
.lead {
  margin: 0.55rem 0 0;
  max-width: var(--measure);
  color: var(--ink-soft);
  font-size: var(--fs-1);
}
.plaque::after {
  content: "";
  display: block;
  width: min(16rem, 72%);
  height: 3px;
  margin-top: 0.95rem;
  background: var(--retina);
  clip-path: polygon(0 0, 100% 35%, 100% 65%, 0 100%);
}

.slit-lane {
  background: var(--smoke);
  color: var(--bone);
  padding: 0 0 1.15rem;
}
.slit-head {
  padding: 0.85rem var(--pad) 0.55rem;
}
.slit-head h2 {
  margin: 0;
  color: var(--bone);
  font-size: clamp(1.15rem, 3.4vw, 1.7rem);
}
.kicker {
  margin: 0 0 0.28rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--retina);
}

.aperture {
  position: relative;
  margin: 0;
  height: 11.25rem;
  background:
    radial-gradient(ellipse at 50% 50%, #2a241f 0%, #12100e 68%, #0a0908 100%);
  overflow: hidden;
}
#lamp,
.lamp-fallback {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
#lamp { opacity: 0; }
body.is-gl #lamp { opacity: 1; }
body.is-gl .lamp-fallback { visibility: hidden; }

.lamp-fallback .twap-line {
  fill: none;
  stroke: #e8d8c8;
  stroke-width: 1.6;
  stroke-dasharray: 6 7;
  animation: twap-crawl 7s linear infinite;
}
.lamp-fallback .freeze-bar {
  fill: var(--retina);
  opacity: 0;
}
.lamp-fallback .iris-arc {
  fill: none;
  stroke: #cfc3b0;
  stroke-width: 1.2;
  opacity: 0.45;
}
.aperture[data-phase="shut"] .freeze-bar,
.aperture[data-phase="fade"] .freeze-bar,
.aperture[data-phase="confirm"] .freeze-bar { opacity: 0.85; }
.aperture[data-phase="shut"] .twap-line { animation-play-state: paused; opacity: 0.45; }

@keyframes twap-crawl {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -130; }
}

.lids {
  pointer-events: none;
  position: absolute;
  inset: 0;
}
.lid {
  position: absolute;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(#161310, #1d1916);
  transition: transform 160ms cubic-bezier(0.16, 0.84, 0.32, 1);
}
.lid-upper { top: 0; transform: translateY(-46%); }
.lid-lower { bottom: 0; transform: translateY(46%); }
.aperture[data-phase="shut"] .lid-upper { transform: translateY(0); }
.aperture[data-phase="shut"] .lid-lower { transform: translateY(0); }
.aperture[data-phase="fade"] .lid-upper { transform: translateY(-20%); }
.aperture[data-phase="fade"] .lid-lower { transform: translateY(20%); }
.aperture[data-phase="confirm"] .lid-upper { transform: translateY(-52%); }
.aperture[data-phase="confirm"] .lid-lower { transform: translateY(52%); }
.aperture[data-phase="timeout"] .lid-upper { transform: translateY(-30%); }
.aperture[data-phase="timeout"] .lid-lower { transform: translateY(30%); }

.aperture figcaption {
  position: absolute;
  left: var(--pad);
  right: var(--pad);
  bottom: 0.4rem;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c9bfb2;
}

.phoropter {
  display: grid;
  gap: 0.45rem;
  padding: 0.85rem var(--pad) 0.2rem;
}
.phoro-kicker,
.phoro-help,
.phoro-end {
  margin: 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #b7aea2;
}
.phoro-end {
  color: var(--retina);
  min-height: 1.1em;
}

.ask,
.key {
  font: 500 0.76rem/1 "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--bone);
  background: transparent;
  color: var(--bone);
  padding: 0.85rem 1rem;
  min-height: 44px;
  cursor: none;
}
body.is-touch .ask,
body.is-touch .key { cursor: pointer; }
.ask {
  justify-self: start;
  background: var(--retina);
  border-color: var(--retina);
}
.ask:hover,
.ask:focus-visible { background: var(--retina-dim); }
.ask:disabled { opacity: 0.45; }
.resolve {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
}
.key:disabled { opacity: 0.28; }
.key:not(:disabled):hover,
.key:not(:disabled):focus-visible {
  background: var(--bone);
  color: var(--ink);
}

.stations,
.rx,
.opening,
.card {
  padding: 2.6rem var(--pad);
  border-top: var(--slit) solid var(--ink);
}

h2 {
  margin: 0 0 1.35rem;
  font-family: "Bodoni Moda", "Times New Roman", serif;
  font-weight: 500;
  font-size: clamp(1.7rem, 4.2vw, 2.85rem);
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.lane-stations {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.station {
  padding: 1.45rem 0;
  border-top: var(--slit) solid var(--ink);
}
.station:first-child { border-top: 0; padding-top: 0; }
.st-no {
  margin: 0 0 0.35rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--retina);
}
.station h3 {
  margin: 0 0 0.45rem;
  font-family: "Bodoni Moda", serif;
  font-weight: 500;
  font-size: var(--fs-3);
}
.station > p {
  margin: 0 0 0.95rem;
  max-width: var(--measure);
  color: var(--ink-soft);
}

.plate {
  margin: 0;
  background: var(--bone-deep);
  padding: 0.65rem 0.65rem 0.35rem;
}
.plate svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--ink);
}
.plate path.wave {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.4;
}
.plate rect { fill: none; stroke: var(--ink); stroke-width: 1; }
.plate rect.cut { fill: var(--retina); fill-opacity: 0.24; }
.plate text {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  fill: var(--ink-soft);
}
.plate figcaption {
  margin: 0.4rem 0 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.rx-pad {
  margin: 0;
  display: grid;
  gap: 0;
}
.rx-pad > div {
  display: grid;
  gap: 0.3rem;
  padding: 1rem 0;
  border-top: var(--slit) solid var(--ink);
}
.rx-pad dt {
  margin: 0;
  font-family: "Bodoni Moda", serif;
  font-weight: 500;
  font-size: var(--fs-2);
}
.rx-pad dd {
  margin: 0;
  max-width: var(--measure);
  color: var(--ink-soft);
}
.rx-alert dt { color: var(--retina); }

.opening-copy {
  margin: 0 0 1.25rem;
  max-width: var(--measure);
  color: var(--ink-soft);
}
.opening-fig {
  margin: 0;
  padding: 1rem;
  background: var(--smoke);
  color: var(--bone);
}
.opening-fig svg { display: block; width: 100%; height: auto; }
.opening-fig line { stroke: #d8d0c4; stroke-width: 1; }
.opening-fig .band {
  fill: var(--retina);
  fill-opacity: 0.28;
  stroke: var(--retina);
}
.opening-fig text {
  fill: #d8d0c4;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.opening-fig figcaption {
  margin: 0.75rem 0 0;
  color: #b7aea2;
  font-size: 0.88rem;
  max-width: 48rem;
}

.story {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-2);
  line-height: 1.5;
}
.may {
  margin: 1.3rem 0 0;
  font-family: "Bodoni Moda", serif;
  font-style: italic;
  font-size: var(--fs-2);
  color: var(--ink-soft);
}

.case-foot {
  display: grid;
  gap: 0.4rem;
  padding: 1.3rem var(--pad) 2rem;
  border-top: var(--slit) solid var(--ink);
  background: var(--bone);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.foot-mark { margin: 0; color: var(--retina); }
.case-foot address { font-style: normal; }
.foot-x { margin: 0; }
.foot-x a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--retina);
}
.foot-x a:hover,
.foot-x a:focus-visible { color: var(--retina); }

:focus-visible {
  outline: 2px solid var(--retina);
  outline-offset: 3px;
}

.empty-tray {
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
  background: var(--bone);
  color: var(--ink);
  font-family: "Source Sans 3", sans-serif;
  padding: 2rem;
}
.empty-card { max-width: 28rem; }
.empty-stamp {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--retina);
}
.empty-card h1 {
  font-size: 2.4rem;
  margin: 0.3rem 0 0.8rem;
}
.empty-card a { color: var(--retina); }

@media (min-width: 720px) {
  .resolve { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .aperture { height: 13.5rem; }
}

@media (min-width: 880px) {
  .case-label {
    grid-template-columns: auto 1fr auto;
  }
  .case-nav {
    grid-column: auto;
    justify-content: center;
    overflow: visible;
  }
  .plaque {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 1.6rem;
    max-width: none;
    padding: 1.6rem var(--pad) 1.2rem;
  }
  .sym { grid-column: 1; }
  h1 { grid-column: 1; }
  .hook { grid-column: 2; grid-row: 2; margin-top: 0.2rem; align-self: end; }
  .lead { grid-column: 2; grid-row: 3; }
  .plaque::after { grid-column: 1 / -1; }

  .slit-lane {
    display: grid;
    grid-template-columns: 1.7fr 0.9fr;
    grid-template-rows: auto 1fr;
    padding-bottom: 0;
  }
  .slit-head { grid-column: 1 / -1; }
  .aperture {
    height: min(28vh, 17.5rem);
    min-height: 14rem;
  }
  .phoropter {
    align-content: start;
    padding: 1.1rem 1.4rem 1.4rem 0.4rem;
    border-left: var(--slit) solid rgba(244, 239, 230, 0.16);
  }

  .lane-stations {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: var(--slit) solid var(--ink);
  }
  .station {
    padding: 1.4rem 1.2rem 0 0;
    border-top: 0;
    border-right: var(--slit) solid var(--ink);
  }
  .station:last-child { border-right: 0; padding-right: 0; }

  .rx-pad {
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
  }
  .rx-alert { grid-column: 1 / -1; }

  .opening-grid {
    display: grid;
    grid-template-columns: minmax(16rem, 0.8fr) 1.2fr;
    gap: 2rem;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .lid { transition: none; }
  .lamp-fallback .twap-line { animation: none; }
}

@media (pointer: coarse) {
  body.exam-lane { cursor: auto; }
  .slit-cursor { display: none !important; }
}