/* Museum Brain — white sketch-model world (3DMK-like layout) in TNT colours and type */
:root {
  --paper: #f1f0eb;
  --paper2: #e7e6e0;
  --ink: #0a0b09;
  --ink2: #3b3d37;
  --mut: #5f615a;   /* 5.7:1 on the card (AA); was #7a7c74 */
  --rule: #c9c8c1;
  --lime: #cafe03;
  --lime-d: #8fb300;   /* lime means: a signal right now, live data, or what you selected */
  --serif: 'Alegreya', Georgia, serif;
  --mono: 'IBM Plex Mono', ui-monospace, Consolas, monospace;
  --side: 248px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: var(--paper); color: var(--ink); }
body { font: 400 16px/1.5 var(--serif); -webkit-font-smoothing: antialiased; }
button { font: inherit; color: inherit; cursor: pointer; }

#world { position: fixed; inset: 0; }
#world canvas { display: block; }
/* paper grain over the render */
body::after {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 1; opacity: .35; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .5 0 0 0 0 .5 0 0 0 0 .45 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
#labels, #slabels { position: fixed; inset: 0; pointer-events: none; z-index: 2; }
#slabels .lb { pointer-events: none; cursor: default; }

/* ── labels in the 3D view ── */
.lb { pointer-events: auto; cursor: pointer; transition: opacity .5s, visibility .5s; }
.lb.off, .lb.hid { opacity: 0; pointer-events: none; }
.lb.hid { transition: opacity .25s, visibility .25s; }
.lb .t {
  display: inline-block; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; white-space: nowrap;
  background: var(--ink); color: #fff; padding: 4px 6px 3px; transform: translateY(-100%);
}
.lb .t small { color: #a6a89e; margin-left: 6px; letter-spacing: .02em; text-transform: none; }
.lb .stalk { position: absolute; left: 0; bottom: 0; width: 1px; height: var(--stalk, 18px); background: var(--ink); transform: translateY(100%); }
.lb .t { margin-bottom: var(--stalk, 18px); }
.lb.big .t { font-size: 12.5px; padding: 6px 8px 5px; }
.lb.ghost .t { background: rgba(255,255,255,.85); color: var(--ink); outline: 1px solid var(--ink); }
.lb.hot .t { background: var(--lime); color: var(--ink); }
.lb.hot .t small { color: rgba(10,11,9,.62); }
/* one label system: black = a place (room, station, hub), white with ink rim = a thing (installation, building),
   lime = a message on its way, and small uppercase ink without a box = an annotation inside a drawing (scale scenes) */
.lb.topic .t { background: rgba(244,243,239,.7); color: var(--ink); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; padding: 1px 3px; }
.lb.topic .stalk { display: none; }
.lb.topic { --stalk: 0px; }
.pk { font: 500 11px/1.2 var(--mono); background: var(--lime); color: var(--ink); padding: 3px 6px; white-space: nowrap; max-width: calc(100vw - 32px); overflow: hidden; text-overflow: ellipsis; transform: translate(-50%, -150%); outline: 1px solid var(--ink); transition: opacity .4s; }

/* ── sidebar ── */
#side {
  position: fixed; left: 0; top: 0; bottom: 0; width: var(--side); z-index: 5; padding: 22px 22px 18px;
  display: flex; flex-direction: column; gap: 18px;
  background: rgba(241,240,235,.62); backdrop-filter: blur(6px); border-right: 1px solid var(--rule);
}
.brand { display: flex; gap: 10px; align-items: center; color: inherit; text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand b { display: block; font: 800 22px/1 var(--serif); letter-spacing: -.01em; }
.brand small { display: block; font: 400 11px/1.4 var(--mono); color: var(--mut); margin-top: 3px; letter-spacing: .04em; }
#toc { list-style: none; margin: 0; padding: 0; font: 400 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; overflow: auto; flex: 1; }
#toc li { display: flex; align-items: center; gap: 8px; padding: 4px 0; cursor: pointer; color: var(--ink2); }
#toc li::before { content: ''; width: 8px; height: 8px; border: 1px solid var(--ink2); flex: none; }
#toc li:hover { color: var(--ink); }
#toc li.on { color: var(--ink); font-weight: 600; }
#toc li.on::before { background: var(--lime); border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.side-foot { display: grid; gap: 8px; }
.btn { font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; background: #fff; border: 1px solid var(--ink); padding: 9px 10px; text-align: left; }
.btn:hover, .btn.on { background: var(--ink); color: #fff; }
.hint { margin: 0; font: 400 11px/1.4 var(--mono); color: var(--mut); }

/* ── chapter card ── */
#card {
  position: fixed; z-index: 4; left: calc(var(--side) + 28px); top: 64px; width: min(470px, 36vw); max-height: calc(100vh - 150px); overflow: auto;
  background: rgba(244,243,239,.84); backdrop-filter: blur(5px); border-top: 1px solid var(--ink); padding: 14px 20px 18px;
  transition: opacity .45s, transform .6s cubic-bezier(.2,.7,.2,1);
}
#card.out { opacity: 0; transform: translateY(10px); }
#card.cover { width: min(600px, 44vw); top: 16vh; background: rgba(244,243,239,.88); border-top: 1px solid var(--ink); padding: 22px 28px 26px; }
.kick { font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink2); }
.tags { display: flex; gap: 6px; flex-wrap: wrap; margin: 12px 0 0; }
.tags span { font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 5px 7px 4px; border: 1px solid var(--ink); }
.tags span:last-child { background: var(--ink); color: #fff; }
#card h1 { font: 500 clamp(26px, 2.5vw, 40px)/1.08 var(--serif); letter-spacing: -.015em; margin: 14px 0 12px; text-wrap: balance; }
#card.cover h1 { font-size: clamp(52px, 6vw, 96px); font-weight: 800; margin-top: 10px; line-height: .95; }
#card.cover .flowline { background: rgba(255,255,255,.6); }
#cBody p { margin: 0 0 10px; font-size: 16px; color: var(--ink2); }
#cBody p b { color: var(--ink); }
.flowline { font: 400 12px/1.6 var(--mono); border-left: 2px solid var(--ink); padding: 6px 10px; margin: 12px 0; color: var(--ink); }
.flowline:empty, #cFacts:empty, #cSteps:empty, .tags:empty { display: none; }
#cFacts { margin: 6px 0 0; display: grid; grid-template-columns: auto 1fr; border-top: 1px solid var(--rule); }
#cFacts dt, #cFacts dd { margin: 0; padding: 7px 0; border-bottom: 1px solid var(--rule); font-size: 14.5px; }
#cFacts dt { font: 500 11px/1.9 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding-right: 14px; color: var(--mut); }
#cFacts dd b { font: 600 14px/1 var(--mono); }
.steps { list-style: none; margin: 10px 0 0; padding: 0; counter-reset: s; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 22px 1fr; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--rule); font-size: 14.5px; color: var(--ink2); transition: color .3s; }
.steps li::before { content: counter(s); font: 600 11px/18px var(--mono); text-align: center; width: 18px; height: 18px; border: 1px solid currentColor; }
.steps li.done { color: var(--ink2); }
.steps li.now { color: var(--ink); }
.steps li.now::before { background: var(--lime); border-color: var(--ink); color: var(--ink); }
.steps code, #cBody code { font: 500 12px var(--mono); background: rgba(10,11,9,.06); padding: 1px 4px; }
.big-n { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin-top: 10px; }
.big-n div { background: rgba(244,243,239,.95); padding: 10px; }
.big-n b { display: block; font: 600 22px/1 var(--mono); }
.big-n span { font: 400 11px/1.3 var(--mono); color: var(--mut); text-transform: uppercase; letter-spacing: .04em; }
.pipe { display: flex; gap: 0; margin-top: 10px; font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.pipe div { flex: 1; padding: 8px 6px; border: 1px solid var(--ink); margin-left: -1px; text-align: center; }
.pipe div b { display: block; font-size: 17px; margin-top: 5px; }
.pipe .ok { background: var(--lime); }
.pipe .no { background: var(--paper2); color: var(--mut); }
.cover-logo { display: flex; align-items: center; gap: 16px; }
.cover-logo img.s { width: 64px; }
.cover-logo img.w { height: 54px; }
.go { margin-top: 18px; display: inline-flex; gap: 10px; align-items: center; font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--ink); background: var(--ink); color: #fff; padding: 10px 14px; }

/* ── explore / signal control panel ── */
#ctrl {
  position: fixed; z-index: 4; left: calc(var(--side) + 28px); top: 64px; width: 330px; max-height: calc(100vh - 150px); overflow: auto;
  background: rgba(244,243,239,.9); backdrop-filter: blur(5px); border-top: 1px solid var(--ink); padding: 14px 16px;
}
#ctrl p { font-size: 14.5px; margin: 10px 0; color: var(--ink2); }
#ctrlBtns { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
#ctrlBtns button { font: 500 11px/1.25 var(--mono); text-align: left; background: #fff; border: 1px solid var(--rule); padding: 7px 8px; }
#ctrlBtns button small { display: block; color: var(--mut); font-size: 11px; margin-top: 2px; }
#ctrlBtns button:hover { border-color: var(--ink); }
#ctrlBtns button.fire { background: var(--lime); border-color: var(--ink); }
.tog { display: flex; gap: 8px; align-items: center; font: 500 11px/1 var(--mono); margin: 12px 0 8px; }
#log { font: 400 11px/1.55 var(--mono); color: var(--ink2); padding-top: 4px; max-height: 190px; overflow: hidden; }
#logBox { margin: 6px 0 10px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 5px 0; }
#logBox summary { font: 500 11px/1.4 var(--mono); cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#logLast { color: var(--ink2); font-weight: 400; margin-left: 6px; }
#log div { cursor: pointer; } #log div:hover b { text-decoration: underline; }
.tw-minilog { font: 400 11px/1.5 var(--mono); color: var(--ink2); margin: 4px 0 8px; min-height: 0; }
.tw-minilog div { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#log div { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#log b { color: var(--ink); }

/* ── scale readout (3DMK "field width") ── */
#scale { position: fixed; z-index: 4; right: 16px; bottom: 12px; width: 260px; text-align: right; pointer-events: none; background: linear-gradient(90deg, rgba(241,240,235,0), rgba(241,240,235,.92) 30%); padding: 10px 12px 10px 40px; }
.sk { font: 500 11px/1 var(--mono); letter-spacing: .14em; color: var(--ink2); }
.sv { font: 300 44px/1.05 var(--serif); }
.sv small { font: 400 12px var(--mono); color: var(--mut); margin-left: 6px; }
.ruler { position: relative; margin-top: 8px; border-top: 1px solid var(--ink2); height: 22px; text-align: left; }
.ruler span { position: absolute; left: 0; top: 6px; font: 400 11px var(--mono); color: var(--ink2); }
.ruler i { position: absolute; left: 0; right: 0; top: -6px; height: 6px; background: repeating-linear-gradient(90deg, var(--ink2) 0 1px, transparent 1px 19px); opacity: .7; }
#counter { position: fixed; z-index: 4; right: 16px; top: 12px; background: rgba(241,240,235,.92); padding: 8px 12px; font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink2); }
#counter span { background: var(--ink); color: var(--lime); padding: 3px 5px; margin-right: 4px; }
#counter b { font-weight: 500; }
#log i { font-style: normal; margin-left: 6px; padding: 0 3px; border: 1px solid var(--rule); color: var(--mut); }
#log i.src-live { background: var(--lime); color: var(--ink); border-color: var(--ink); }
#log i.src-replay { background: #dfe8ff; color: var(--ink); }
#note { position: fixed; z-index: 4; left: calc(var(--side) + 28px); bottom: 14px; max-width: 520px; font: 400 11px/1.4 var(--mono); color: var(--ink2); background: rgba(241,240,235,.88); padding: 4px 6px; }

@media (max-width: 900px) {
  :root { --side: 0px; }
  #side { display: none; }
  #card, #ctrl { left: 16px; right: 16px; width: auto; top: auto; bottom: 120px; max-height: 45vh; }
  #card.cover { top: 18vh; bottom: auto; width: auto; }
  #scale { width: 200px; right: 16px; }
  #note { display: none; }
}

/* ── twin: installation list + card in the explore panel ── */
#ctrl { width: 360px; }
#tw h4 { margin: 14px 0 6px; font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mut); }
.tw-intro { font-size: 14.5px; }
.tw-list { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.tw-list button { font: 500 11px/1.25 var(--mono); text-align: left; background: #fff; border: 1px solid var(--rule); padding: 7px 8px; }
.tw-list button small { display: block; color: var(--mut); font-size: 11px; margin-top: 2px; }
.tw-list button:hover { border-color: var(--ink); background: #fbffe6; }
.tw-back { background: none; border: 0; padding: 0; font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink2); margin: 4px 0 10px; }
.tw-room .ev { margin-left: 6px; }
.tw-room { font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mut); }
.tw-conf { margin-left: 6px; padding: 2px 4px; border: 1px solid var(--rule); }
#tw h3 { font: 700 24px/1.1 var(--serif); margin: 6px 0 4px; }
.tw-sum { font-size: 14.5px; color: var(--ink2); margin: 0 0 8px; }
.tw-k { display: flex; justify-content: space-between; align-items: center; font: 600 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink); margin: 14px 0 6px; padding-top: 8px; border-top: 1px solid var(--rule); }
.tw-play { font: 600 11px/1 var(--mono); border: 1px solid var(--ink); background: #fff; padding: 4px 7px; }
.tw-play:hover { background: var(--ink); color: #fff; }
.tw-ctl { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 10px; background: #fff; border: 1px solid var(--ink); }
.tw-btn { border: 1px solid var(--ink); background: var(--ink); color: #fff; padding: 8px 12px 7px; font: 600 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.tw-btn.hit { background: var(--lime); color: var(--ink); }
.tw-opts { display: flex; flex-wrap: wrap; gap: 4px; width: 100%; }
.tw-opt { border: 1px solid var(--ink); background: #fff; padding: 5px 8px 4px; font: 500 11px/1 var(--mono); }
.tw-opt.on { background: var(--lime); }
.tw-r { display: flex; align-items: center; gap: 8px; width: 100%; font: 500 11px/1 var(--mono); }
.tw-r span { min-width: 52px; }
.tw-r input { flex: 1; accent-color: var(--ink); }
.tw-r output { min-width: 26px; text-align: right; }
.tw-tog { font: 500 11.5px/1 var(--mono); display: flex; gap: 6px; align-items: center; }
.tw-meter { position: relative; width: 100%; height: 14px; border: 1px solid var(--ink); }
.tw-meter i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: #d9d8d1; transition: width .15s; }
.tw-meter i.ok { background: var(--lime); }
.tw-meter span { position: absolute; right: 4px; top: 1px; font: 500 11px/1.2 var(--mono); }
.tw-dial { width: 64px; height: 64px; border-radius: 50%; border: 2px solid var(--ink); position: relative; cursor: grab; touch-action: none; background: #fff; }
.tw-dial i { position: absolute; left: 50%; top: 5px; width: 2px; height: 26px; margin-left: -1px; background: var(--ink); transform-origin: 1px 27px; }
.tw-pad { width: 100%; height: 70px; position: relative; background: repeating-linear-gradient(90deg, #eef3f3 0 18px, #e2eaea 18px 36px); cursor: crosshair; touch-action: none; overflow: hidden; }
.tw-pad i { position: absolute; width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%; background: var(--lime); border: 1.5px solid var(--ink); left: 50%; top: 50%; }
.tw-note { font: 400 11.5px/1.4 var(--mono); color: var(--mut); }
.tw-pub { font: 400 11px/1.4 var(--mono) !important; color: var(--mut) !important; margin: 6px 0 0 !important; }
.tw-route { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.tw-route li { font: 400 11.5px/1.3 var(--mono); padding: 4px 0 4px 22px; position: relative; color: var(--ink2); }
.tw-route li::before { counter-increment: s; content: counter(s); position: absolute; left: 0; top: 4px; width: 15px; height: 15px; border: 1px solid var(--rule); font-size: 11px; text-align: center; line-height: 14px; }
.tw-route li.done { color: var(--mut); }
.tw-route li.now { color: var(--ink); font-weight: 600; }
.tw-route li:not(.tw-follow) + li.tw-follow { border-top: 1px dashed var(--rule); margin-top: 4px; padding-top: 7px; }   /* the switchboard's rule after the route */
.tw-route li.now::before { background: var(--lime); border-color: var(--ink); }
.tw-route .nd { font: 500 11px/1 var(--mono); padding: 2px 4px; border: 1px solid var(--ink); background: #fff; margin-right: 4px; }
.tw-route .nd-tnt { background: var(--ink); color: #fff; } .tw-route .nd-ljus { background: #f5efc6; } .tw-route .nd-dator { background: #e9e8ff; }
.tw-route .nd-moln { background: #dfe8ff; } .tw-route .nd-skärm { background: #f3e6d9; } .tw-route .nd-högtalare { background: #fdf2c4; } .tw-route .nd-lokalt, .tw-route .nd-sensor { border-style: dashed; }
.tw-links { font-size: 13.5px; line-height: 1.7; color: var(--ink2); }
.tw-links button { font: 600 11px/1 var(--mono); border: 1px solid var(--ink); background: #fff; padding: 3px 6px; }
.tw-beats { margin: 0; padding-left: 18px; font-size: 14px; color: var(--ink2); }
.tw-open { margin: 0; padding-left: 16px; font-size: 13.5px; color: var(--ink2); }
.tw-open li { margin: 2px 0; }
.tw-open li::marker { content: '? '; color: #c4522f; font: 600 11px var(--mono); }
.tw-none { font: 400 11px/1.4 var(--mono); color: var(--ink2); margin: 4px 0; }
.tw-doc { display: inline-block; margin-top: 10px; font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink); }
#srcBox { margin-top: 14px; border-top: 1px solid var(--rule); padding-top: 8px; }
#srcBox summary { cursor: pointer; font: 600 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink2); }
#srcBox p { font-size: 13px; }
#srcBox .row { display: flex; gap: 6px; margin: 6px 0; align-items: center; }
#srcBox input#liveUrl { flex: 1; font: 400 11px/1 var(--mono); padding: 6px; border: 1px solid var(--ink); }
#srcBox button, #srcBox select { font: 600 11px/1 var(--mono); border: 1px solid var(--ink); background: #fff; padding: 6px 8px; }
#srcBox .file { flex: 1; font: 500 11px/1.3 var(--mono); }
#srcBox .file input { display: block; margin-top: 4px; font-size: 11px; max-width: 100%; }

/* ── phones: bottom chapter bar; panels sit above it ── */
#mnav { display: none; }
@media (max-width: 900px) {
  #mnav { display: flex; position: fixed; z-index: 6; left: 0; right: 0; bottom: 0; height: 52px; align-items: center; gap: 8px; padding: 0 12px;
    background: rgba(241,240,235,.96); border-top: 1px solid var(--rule); font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
  #mnav button { border: 1px solid var(--ink); background: #fff; min-width: 40px; height: 36px; font: 600 16px/1 var(--mono); }
  #mnav #mExp { margin-left: auto; padding: 0 12px; font-size: 11px; background: var(--ink); color: #fff; }
  #mPos { flex: 0 1 auto; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  #card, #ctrl { width: auto; bottom: 64px; max-height: 44vh; }
  #card.cover { max-height: 72vh; }
  #scale { display: none; }
  #counter { top: 8px; right: 8px; padding: 6px 8px; font-size: 11px; }
  #note { display: block; left: 0; right: 0; bottom: 52px; max-width: none; font-size: 11px; line-height: 1.2; padding: 2px 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  #card, #ctrl { bottom: 70px; }
}
#boot { position: fixed; z-index: 9; left: 50%; top: 50%; transform: translate(-50%, -50%); font: 500 12px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink2); background: rgba(241,240,235,.95); padding: 10px 14px; border: 1px solid var(--rule); max-width: 80vw; }
#boot.err { text-transform: none; letter-spacing: 0; color: #c4522f; border-color: #c4522f; }

/* sources and evidence levels (chapters and cards share them) */
#cSrc { margin: 14px 0 0; padding-top: 8px; border-top: 1px solid var(--rule); font: 400 11px/1.7 var(--mono); color: var(--ink2); }
#cSrc:empty { display: none; }
#cSrc .k { font-weight: 600; letter-spacing: .1em; text-transform: uppercase; margin-right: 8px; color: var(--ink); }
#cSrc .sep { margin: 0 6px; color: var(--mut); }
#cSrc a { color: var(--ink); text-decoration: none; margin-left: 4px; }
.ev { display: inline-block; font: 500 11px/1 var(--mono); letter-spacing: .04em; padding: 2px 4px; border: 1px solid var(--ink2); cursor: help; }
.ev-belagd { background: var(--ink); color: #fff; border-color: var(--ink); }
.ev-delvis { background: linear-gradient(90deg, var(--ink) 0 4px, #fff 4px); padding-left: 8px; color: var(--ink); border-color: var(--ink); }
.ev-antagen { border-style: dashed; }
.ev-okand { border-style: dotted; color: var(--mut); }
.tw-legend { margin: 8px 0 0; font: 400 11px/1.6 var(--mono); color: var(--ink2); }
.tw-legend summary { cursor: pointer; }
.tw-cards { margin: 6px 0 10px; }
.tw-cards summary { cursor: pointer; font: 500 11px/1.6 var(--mono); color: var(--ink2); text-transform: uppercase; letter-spacing: .04em; }
.tw-cards .tw-list { margin-top: 6px; }
.tw-legend dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 8px; margin: 6px 0 0; }
.tw-legend dd { margin: 0; }

/* keyboard focus */
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.lb:focus-visible { outline: none; }
.lb:focus-visible .t { outline: 2px solid var(--ink); outline-offset: 2px; }
.lb.off, .lb.hid, .lb.lod { visibility: hidden; }
.lb.lod { opacity: 0; pointer-events: none; }
body.far .pk { display: none; }
.pk.hid { opacity: 0; }

/* ── scale hops (js/scales.js) ── */
#fade { position: fixed; inset: 0; z-index: 8; background: var(--paper, #f1f0eb); opacity: 0; pointer-events: none; transition: opacity .34s; }
#fade.on { opacity: 1; }
#scard { position: fixed; z-index: 4; left: calc(var(--side) + 28px); top: 64px; width: min(430px, 34vw); max-height: calc(100vh - 150px); overflow: auto;
  background: rgba(244,243,239,.88); backdrop-filter: blur(5px); border-top: 1px solid var(--ink); padding: 14px 20px 18px; }
#scard h1 { font: 500 clamp(24px, 2.2vw, 34px)/1.08 var(--serif); letter-spacing: -.015em; margin: 10px 0 8px; }
#scLead { font-size: 15px; color: var(--ink2); margin: 0 0 6px; }
#scNote { font: 400 11px/1.5 var(--mono); color: var(--mut); margin: 10px 0 0; }
.sc-back { background: none; border: 0; padding: 0; font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink2); margin: 0 0 10px; cursor: pointer; }
#scLive { margin-top: 10px; }
#scLive canvas { display: block; background: #fff; border: 1px solid var(--rule); margin: 6px 0; }
.sc-read { font: 400 11.5px/1.5 var(--mono); color: var(--ink2); margin: 6px 0; }
.sc-read b.go { background: var(--lime); color: var(--ink); padding: 1px 4px; }
.sc-ctl { display: flex; gap: 8px; align-items: center; font: 500 11px/1 var(--mono); }
.sc-ctl input { flex: 1; accent-color: var(--ink); }
.sc-opts { display: flex; flex-wrap: wrap; gap: 4px; margin: 6px 0; }
.sc-opts button { border: 1px solid var(--ink); background: #fff; padding: 5px 8px 4px; font: 500 11px/1 var(--mono); cursor: pointer; }
.sc-opts button.on { background: var(--lime); }
/* hop buttons on installation cards and chapters */
.hops { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 0; }
.hops button { display: inline-flex; gap: 6px; align-items: center; border: 1px solid var(--ink); background: #fff; padding: 6px 9px 5px; font: 500 11px/1 var(--mono); cursor: pointer; }
.hops button i { font-style: normal; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--mut); }
.hops button:hover { background: var(--ink); color: #fff; }
.hops button:hover i { color: #c9c8c1; }
@media (max-width: 900px) { #scard { left: 16px; right: 16px; width: auto; top: auto; bottom: 70px; max-height: 44vh; } }

/* ── stories: the installation's chapters in the side bar, prev/next on the card, its part in a scale scene ── */
#storyHead { margin: 0 0 12px; padding: 0 0 10px; border-bottom: 1px solid var(--ink); }
#storyHead .sh-back { display: block; background: none; border: 0; padding: 0; margin: 0 0 8px; font: 500 11px/1.4 var(--mono); color: var(--ink2); cursor: pointer; letter-spacing: .04em; }
#storyHead .sh-back:hover { color: var(--ink); }
#storyHead b { display: block; font: 600 18px/1.15 var(--serif); }
#storyHead small { display: block; font: 400 11px/1.5 var(--mono); color: var(--ink2); text-transform: uppercase; letter-spacing: .06em; }
.storynav { display: flex; justify-content: space-between; gap: 8px; margin: 18px 0 2px; padding: 12px 0 8px; border-top: 1px solid var(--paper2);
  position: sticky; bottom: -18px; background: #f2f1ec; z-index: 2; }   /* always reachable, even in long cards */
body.in-scene #note { display: none; }
.storynav button { background: none; border: 1px solid var(--ink); padding: 7px 10px; font: 500 11px/1.2 var(--mono); color: var(--ink); cursor: pointer; text-align: left; max-width: 48%; }
.storynav .sn-next { background: var(--ink); color: var(--paper); margin-left: auto; text-align: right; }
.storynav button:hover { box-shadow: 2px 2px 0 var(--ink); }
#scHere { margin: 10px 0 12px; padding: 10px 12px; border-left: 3px solid var(--lime); background: rgba(255, 255, 255, .6); }
#scHere b { font: 600 11px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
#scHere p { margin: 4px 0 0; font: 400 15px/1.45 var(--serif); }
.srclist { margin: 6px 0 12px; padding-left: 18px; font: 400 12px/1.55 var(--mono); color: var(--ink2); }
.srclist a { color: var(--ink); }
#card .try { margin-top: 6px; }
.tw-stories { display: grid; gap: 6px; margin: 4px 0 14px; }
.tw-stories button { text-align: left; background: #fff; border: 1px solid var(--ink); padding: 8px 10px; font: 600 12px/1.3 var(--mono); cursor: pointer; }
.tw-stories button i { display: block; font: 400 11px/1.4 var(--mono); color: var(--ink2); font-style: normal; text-transform: uppercase; letter-spacing: .06em; }
.tw-stories button:hover { box-shadow: 2px 2px 0 var(--ink); }
/* photos and clips in an installation's overview */
#card .media { display: grid; gap: 10px; margin: 10px 0 4px; }
#card .media figure { margin: 0; }
#card .media video, #card .media img { display: block; width: 100%; max-height: 260px; object-fit: cover; background: var(--paper2); border: 1px solid var(--ink); }
#card .media figcaption { font: 400 11px/1.45 var(--mono); color: var(--ink2); margin-top: 4px; }
/* Framtiden's stations in Utforska, and the project texts in a station story */
.tw-stations { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 6px 0 8px; }
.tw-stations button { text-align: left; background: var(--ink); color: var(--paper); border: 0; padding: 8px 10px; font: 600 12px/1.3 var(--mono); cursor: pointer; }
.tw-stations button i { display: block; font: 400 11px/1.4 var(--mono); font-style: normal; text-transform: uppercase; letter-spacing: .06em; color: var(--lime); }
.tw-stations button small { display: block; font: 400 11px/1.4 var(--mono); color: #c9c8c1; }
#card h4.proj { margin: 14px 0 2px; font: 600 12px/1.3 var(--mono); text-transform: uppercase; letter-spacing: .04em; }
#card h4.proj + p { margin-top: 2px; }

/* the tour: the sentence that leads to the next stop, and the second cover button */
#cBody p.bridge { font-style: italic; color: var(--ink2); border-left: 2px solid var(--lime); padding-left: 10px; }
.go.alt { background: none; color: var(--ink); border: 1px solid var(--ink); }

/* phone: the card and the panel are a sheet with a handle (half or nearly full height); the position in the bottom bar
   opens the chapter list; touch targets of at least 44 px (granskning 2, F25) */
.sheet-h { display: none; }
@media (max-width: 900px) {
  .sheet-h { display: block; position: sticky; top: -14px; z-index: 3; width: 100%; height: 22px; margin: -14px 0 6px; border: 0; background: transparent; cursor: pointer; }
  .sheet-h::after { content: ''; display: block; width: 44px; height: 4px; margin: 9px auto; border-radius: 2px; background: var(--ink2); opacity: .55; }
  body.sheet-tall #card, body.sheet-tall #ctrl { max-height: calc(100vh - 140px); }
  #mnav #mPos { background: none; border: 0; font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; text-decoration: underline dotted; min-width: 0; height: 36px; flex: 1 1 auto; text-align: left; }
  body.toc-open #side { display: block; position: fixed; z-index: 7; left: 0; right: 0; top: 0; bottom: 52px; width: auto; overflow: auto; background: var(--paper); padding: 18px 16px; }
}
@media (pointer: coarse) {
  #mnav button, .storynav button, .hops button, .tw-opt, .tw-btn, .tw-play, .tw-list button, #toc li, summary, .go { min-height: 44px; }
  #toc li { display: flex; align-items: center; }
  .tw-r input[type=range] { height: 32px; }
}

/* keyboard and screen readers: a skip link that shows on focus, a hidden live line for the chapter */
.skip { position: fixed; left: 8px; top: -60px; z-index: 20; background: var(--ink); color: #fff; padding: 8px 12px; font: 500 12px/1 var(--mono); }
.skip:focus { top: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
#cTitle:focus { outline: none; }

/* round 3: the handle has paper behind it and no handle on the cover; overlay targets; rooms fold in the list */
.sheet-h { background: #f2f1ec; }
#card.cover .sheet-h { display: none; }
body.toc-open .hint:first-of-type { display: none; }
@media (pointer: coarse) { #explore, #storyHead .sh-back, .side-foot a { min-height: 44px; display: inline-flex; align-items: center; } }
.tw-room > summary { list-style: none; cursor: pointer; }
.tw-room > summary::-webkit-details-marker { display: none; }
.tw-room > summary h4 { display: inline; }
.tw-room > summary::after { content: ' ▾'; font: 500 11px/1 var(--mono); color: var(--ink2); }
.tw-room:not([open]) > summary::after { content: ' ▸'; }

/* round 3: the cover's three ways in; visited tour stops; no focus box on the scene title */
.ways { display: grid; gap: 8px; margin-top: 18px; }
.ways .go { margin: 0; justify-content: space-between; text-align: left; }
.ways .go small { font: 400 11px/1.2 var(--mono); letter-spacing: .04em; text-transform: none; opacity: .8; }
#toc li.seen::before { background: var(--ink2); }
#scTitle:focus { outline: none; }