:root {
  --cap: #efe2c4; --capbg: #17182b;
  --ink: #fff; --dim: rgba(255,255,255,.8); --mute: rgba(255,255,255,.55); --hair: rgba(255,255,255,.16);
  --glass: rgba(4,4,4,.78);
  --display: 'Archivo Narrow', 'Arial Narrow', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --edge: clamp(16px, 3vw, 28px);
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--capbg); color: var(--cap); font-family: var(--display); overflow: hidden; touch-action: none; -webkit-font-smoothing: antialiased; }
canvas { display: block; position: fixed; inset: 0; width: 100%; height: 100%; cursor: crosshair; transition: opacity .25s; }
#overlay { position: fixed; inset: 0; pointer-events: none; }
.label { position: absolute; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; white-space: nowrap; transform: translateY(-50%); }
:focus-visible { outline: 1px solid currentColor; outline-offset: 3px; }

/* ---------- top bar: back to the gallery, previous, next ---------- */
.bar { position: fixed; top: calc(var(--edge) + env(safe-area-inset-top, 0px)); left: var(--edge); display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; font-family: var(--mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; text-shadow: 0 0 12px var(--capbg), 0 0 3px var(--capbg); }
.bar a { color: var(--cap); text-decoration: none; border-bottom: 1px solid transparent; padding-bottom: 2px; transition: border-color .3s, opacity .3s; }
.bar a:hover, .bar a:focus-visible { border-color: currentColor; outline: none; }
.bar .brand { font-family: var(--display); font-weight: 700; font-size: 18px; letter-spacing: .04em; margin-right: 6px; }
.bar .step { opacity: .92; }
.bar .step:hover, .bar .step:focus-visible { opacity: 1; }
.bar .count { opacity: .72; }

/* ---------- caption ---------- */
.caption { position: fixed; left: var(--edge); bottom: calc(var(--edge) + env(safe-area-inset-bottom, 0px)); max-width: 36ch; pointer-events: none; color: var(--cap); text-shadow: 0 0 18px var(--capbg), 0 0 4px var(--capbg); transition: opacity .3s, color .6s; }
.caption h1 { font-weight: 700; text-transform: uppercase; letter-spacing: -.02em; font-size: clamp(36px, 6vw, 84px); line-height: .86; margin: 0 0 12px; }
.caption .beta { display: inline-block; vertical-align: top; margin: .35em 0 0 .4em; padding: 4px 7px 3px; border: 1px solid currentColor; font-family: var(--mono); font-size: 11px; font-weight: 400; letter-spacing: .2em; line-height: 1; }
.caption p { font-family: var(--mono); font-size: 12px; line-height: 1.7; margin: 0; opacity: .94; }

/* ---------- legibility: soft scrims in the piece's own background colour, beneath all text ---------- */
body::before, body::after { content: ''; position: fixed; left: 0; pointer-events: none; z-index: 1; }
body::before { top: 0; right: 0; height: calc(110px + env(safe-area-inset-top, 0px)); background: linear-gradient(to bottom, color-mix(in srgb, var(--capbg) 72%, transparent), transparent); }
body::after { bottom: 0; width: min(780px, 100vw); height: min(48vh, 360px); background: radial-gradient(130% 100% at 0% 100%, color-mix(in srgb, var(--capbg) 92%, transparent) 0%, color-mix(in srgb, var(--capbg) 62%, transparent) 42%, transparent 78%); }
.bar, .caption, .open, #overlay, .fail, .err { z-index: 2; }
.panel { z-index: 3; }
/* Readouts some pieces pin to the top right. */
.toplabel { right: var(--edge); top: calc(var(--edge) + 40px + env(safe-area-inset-top, 0px)); transform: none; text-shadow: 0 0 12px var(--capbg), 0 0 3px var(--capbg); }

.open { position: fixed; right: var(--edge); bottom: calc(var(--edge) + env(safe-area-inset-bottom, 0px)); font-family: var(--mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--cap); background: none; border: 0; border-bottom: 1px solid currentColor; padding: 4px 0; cursor: pointer; text-shadow: 0 0 12px var(--capbg); }

/* ---------- control panel ---------- */
.panel {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(360px, 100vw);
  background: var(--glass); color: var(--ink); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: 0 0 0 1px var(--hair);
  overflow-y: auto; overscroll-behavior: contain; touch-action: pan-y;
  padding: calc(26px + env(safe-area-inset-top, 0px)) 26px calc(40px + env(safe-area-inset-bottom, 0px));
  transform: translateX(100%); transition: transform .35s cubic-bezier(.2,.7,.2,1);
  font-family: var(--mono); font-size: 12px; line-height: 1.6;
}
.panel.on { transform: none; }
.panel header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid #fff; margin-bottom: 16px; }
.panel h2 { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 30px; line-height: .9; letter-spacing: -.01em; margin: 0; }
.panel h3 { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 17px; letter-spacing: .02em; margin: 26px 0 8px; padding-top: 14px; border-top: 1px solid var(--hair); }
.panel p.about { color: var(--dim); margin: 0 0 10px; }
.panel .note { color: var(--mute); margin: 0 0 18px; }
.x { background: none; border: 0; font: inherit; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--mute); cursor: pointer; padding: 4px 0; border-bottom: 1px solid transparent; }
.x:hover, .x:focus-visible { color: #fff; border-color: #fff; outline: none; }
.row { margin: 0 0 16px; }
.row .top { display: flex; justify-content: space-between; gap: 12px; font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.row output, .sense output { color: var(--mute); font-variant-numeric: tabular-nums; text-align: right; text-transform: none; letter-spacing: 0; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; margin: 4px 0 0; cursor: pointer; }
input[type=range]::-webkit-slider-runnable-track { height: 1px; background: rgba(255,255,255,.5); }
input[type=range]::-moz-range-track { height: 1px; background: rgba(255,255,255,.5); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 9px; height: 16px; background: #fff; margin-top: -8px; border: 0; }
input[type=range]::-moz-range-thumb { width: 9px; height: 16px; background: #fff; border: 0; border-radius: 0; }
.choice { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 6px 0 0; }
.choice button { background: none; border: 0; padding: 3px 0; font: inherit; color: var(--mute); cursor: pointer; border-bottom: 1px solid transparent; }
.choice button:hover { color: #fff; }
.choice button[aria-pressed=true] { color: #fff; border-bottom-color: #fff; }
.acts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.acts button { font: inherit; font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; background: none; color: #fff; border: 1px solid rgba(255,255,255,.5); padding: 8px 14px; cursor: pointer; transition: background .2s, color .2s; }
.acts button:hover, .acts button:focus-visible { background: #fff; color: #000; outline: none; }
.sense { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; align-items: start; margin: 0 0 10px; }
.sense input { width: 14px; height: 14px; margin: 3px 0 0; accent-color: #fff; }
.sense .what { display: flex; justify-content: space-between; gap: 10px; text-transform: uppercase; letter-spacing: .14em; font-size: 10.5px; }

.readout { position: absolute; left: var(--edge); top: calc(var(--edge) + 40px + env(safe-area-inset-top, 0px)); font-family: var(--mono); font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; opacity: .7; text-shadow: 0 0 10px var(--capbg); }
.tabs { position: absolute; display: flex; gap: 16px; pointer-events: auto; font-family: var(--mono); font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; }
.tabs button { all: unset; cursor: pointer; color: var(--cap); opacity: .5; padding-bottom: 2px; border-bottom: 1px solid transparent; }
.tabs button:hover { opacity: .85; }
.tabs button[aria-pressed=true] { opacity: 1; border-bottom-color: currentColor; }
.tabs button:focus-visible { outline: 1px solid currentColor; outline-offset: 3px; }
.mission { position: absolute; left: var(--edge); top: calc(var(--edge) + 40px + env(safe-area-inset-top, 0px)); width: 340px; overflow-y: auto; overscroll-behavior: contain; pointer-events: auto; font-family: var(--mono); font-size: 11px; line-height: 1.6; color: var(--cap); background: rgba(4,6,10,.66); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 0 0 1px var(--hair); padding: 16px 18px 14px; }
.mission .patch { float: right; width: 54px; height: 54px; object-fit: contain; margin: 0 0 6px 12px; }
.mission .tag { font-size: 10px; letter-spacing: .2em; text-transform: uppercase; opacity: .7; }
.mission h2 { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 23px; line-height: .95; letter-spacing: -.005em; margin: 6px 0 4px; }
.mission .sub { opacity: .7; }
.mission .clock { clear: both; font-family: var(--display); font-weight: 700; font-size: 40px; line-height: 1; font-variant-numeric: tabular-nums; margin: 12px 0 6px; }
.mission .status i { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 8px; vertical-align: 1px; }
.mission .phase { margin-top: 6px; min-height: 1.6em; }
.mission .phase b, .mission .list .h { font-weight: 400; font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; opacity: .55; margin-right: 6px; }
.mission .tele { display: grid; gap: 6px; margin-top: 8px; }
.mission .tele:empty { display: none; }
.mission .tele div { padding: 8px 0 0; border-top: 1px solid var(--hair); }
.mission .tele span { display: block; font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; opacity: .55; }
.mission .tele b { display: block; font-family: var(--display); font-size: 22px; font-weight: 700; line-height: 1.1; }
.mission .model { font-size: 9.5px; opacity: .45; margin: 8px 0 0; }
.mission dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 12px 0 0; padding-top: 10px; border-top: 1px solid var(--hair); }
.mission dt { font-size: 9.5px; letter-spacing: .16em; text-transform: uppercase; opacity: .55; padding-top: 1px; white-space: nowrap; }
.mission dd { margin: 0; opacity: .9; }
.mission dd .ago { opacity: .5; }
.mission a { color: inherit; text-underline-offset: 3px; }
.mission .list { margin-top: 14px; }
.mission .list button { all: unset; box-sizing: border-box; display: block; width: 100%; cursor: pointer; padding: 7px 0; border-top: 1px solid var(--hair); }
.mission .list button b { display: block; font-weight: 400; }
.mission .list button span { opacity: .55; }
.mission .list button:hover b, .mission .list button[aria-current=true] b { text-decoration: underline; text-underline-offset: 3px; }
.mission .list button:focus-visible { outline: 1px solid currentColor; outline-offset: 2px; }
.mission .trains { margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--hair); }
.mission .trains .h { font-size: 9.5px; letter-spacing: .18em; text-transform: uppercase; opacity: .55; margin-bottom: 4px; }
.mission .train { all: unset; box-sizing: border-box; display: block; width: 100%; cursor: pointer; padding: 7px 0; border-top: 1px solid var(--hair); }
.mission .train:first-of-type { border-top: 0; }
.mission .train b { font-weight: 400; color: #9ff0ff; }
.mission .train span { opacity: .7; }
.mission .train:hover b, .mission .train:focus-visible b { text-decoration: underline; text-underline-offset: 3px; }
.mission .trainnote { margin: 2px 0 0; opacity: .85; }
.mission .link { all: unset; cursor: pointer; color: #ffc06a; text-decoration: underline; text-underline-offset: 3px; }
.mission .link:focus-visible, .mission .train:focus-visible { outline: 1px solid currentColor; outline-offset: 2px; }
.mission .prog { height: 2px; margin-top: 12px; background: var(--hair); }
.mission .prog i { display: block; height: 100%; background: currentColor; transform-origin: 0 50%; transform: scaleX(0); }
.video { position: absolute; top: calc(var(--edge) + 40px + env(safe-area-inset-top, 0px)); width: min(460px, 36vw); aspect-ratio: 16 / 9; pointer-events: auto; background: #000; box-shadow: 0 0 0 1px var(--hair); }
.video iframe { width: 100%; height: 100%; border: 0; display: block; }
.video .src { position: absolute; top: 100%; left: 0; margin-top: 6px; font-family: var(--mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; opacity: .75; }
@media (max-width: 640px) {
  .mission { right: var(--edge); width: auto; padding: 12px 14px; }
  .mission .clock { font-size: 30px; }
  .video { left: var(--edge); width: auto; }
}
.fail { position: fixed; left: var(--edge); top: calc(var(--edge) + 70px + env(safe-area-inset-top, 0px)); max-width: 46ch; font-family: var(--mono); font-size: 12px; line-height: 1.6; color: var(--cap); text-shadow: 0 0 10px var(--capbg); display: none; }
.err { position: fixed; inset: 0; display: none; place-items: center; padding: 24px; text-align: center; font-family: var(--mono); font-size: 13px; }

@media (min-width: 641px) {
  /* Keep the caption clear of the open panel. */
  body.panel-on .caption { max-width: min(36ch, calc(100vw - 360px - 2 * var(--edge))); }
  body.panel-on .toplabel { right: calc(360px + var(--edge)); }
}
@media (max-width: 640px) {
  .bar { top: 0; left: 0; right: 0; flex-wrap: nowrap; align-items: center; gap: 2px; padding: calc(4px + env(safe-area-inset-top, 0px)) 6px 4px var(--edge);
         background: color-mix(in srgb, var(--capbg) 80%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
         box-shadow: 0 1px 0 color-mix(in srgb, var(--cap) 14%, transparent); text-shadow: none; }
  .bar .brand { margin-right: auto; padding: 12px 0; border: 0; }
  .bar .step { padding: 12px 14px; font-size: 16px; letter-spacing: 0; opacity: 1; border: 0; }
  .bar .step span { display: none; }
  .bar .count { opacity: .8; font-size: 11px; }
  body::before { display: none; }
  body::after { width: 100%; height: min(46vh, 340px); background: linear-gradient(to top, color-mix(in srgb, var(--capbg) 92%, transparent) 0%, color-mix(in srgb, var(--capbg) 60%, transparent) 45%, transparent 100%); }
  .toplabel { top: calc(64px + env(safe-area-inset-top, 0px)); }
  .readout { top: calc(66px + env(safe-area-inset-top, 0px)); }
  .mission { top: calc(66px + env(safe-area-inset-top, 0px)); }
  .panel { top: auto; left: 0; width: 100%; max-height: 70vh; transform: translateY(100%); padding-top: 20px; }
  .panel.on { transform: none; }
  body.panel-on .caption { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) { .panel, canvas { transition: none; } }