:root {
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --page-bg: #05070b; --page-ink: #eef3f6; --page-accent: #7cfff0;
  color-scheme: dark;
}
:root[data-theme="light"] { color-scheme: light; --page-bg: #e9eef2; --page-ink: #0a121c; --page-accent: #0b7c84; }

/* World palettes: each world keeps its own tokens so it reads on its own with motion off. */
.world[data-world="signal"]   { --bg:#05070b; --ink:#eef3f6; --soft:#9aa7b3; --accent:#7cfff0; --accent2:#f3c16b; --line:rgba(238,246,244,0.3);  --card:rgba(238,246,244,0.05); }
.world[data-world="operator"] { --bg:#0d1519; --ink:#dfe8ea; --soft:#91a3a8; --accent:#62d6a4; --accent2:#f2c14e; --line:rgba(223,232,234,0.42); --card:rgba(223,232,234,0.05); }
.world[data-world="gamelab"]  { --bg:#1a3470; --ink:#eef3fb; --soft:#aebddf; --accent:#ff7a5f; --accent2:#c9d4ea; --line:rgba(214,226,252,0.62); --card:rgba(238,243,251,0.06); }
.world[data-world="arcade"]   { --bg:#07061a; --ink:#f6f3ff; --soft:#a9acc6; --accent:#55eaff; --accent2:#b998ff; --accent3:#ff6f8d; --line:rgba(85,234,255,0.9); --card:rgba(185,152,255,0.07); }
.world[data-world="homelab"]  { --bg:#0e1726; --ink:#e4ebf5; --soft:#8fa0b8; --accent:#f2a93b; --accent2:#7fb3ff; --line:rgba(228,235,245,0.5); --card:rgba(228,235,245,0.05); }
.world[data-world="toolbox"]  { --bg:#1b1610; --ink:#f3ead8; --soft:#b3a58a; --accent:#f5c542; --accent2:#e07b39; --line:rgba(243,234,216,0.52); --card:rgba(243,234,216,0.05); }
.world[data-world="student"]  { --bg:#13261d; --ink:#e8efe6; --soft:#9fb5a6; --accent:#f6d36b; --accent2:#e8efe6; --line:rgba(232,239,230,0.6); --card:rgba(232,239,230,0.05); }
.world[data-world="archive"]  { --bg:#121316; --ink:#ece9e3; --soft:#a19e97; --accent:#e2b65a; --accent2:#ece9e3; --line:rgba(236,233,227,0.5); --card:rgba(236,233,227,0.05); }
.world[data-world="finale"]   { --bg:#05121a; --ink:#e3f1f2; --soft:#93b6bb; --accent:#74bac4; --accent2:#e3f1f2; --line:rgba(116,186,196,0.16); --card:rgba(116,186,196,0.08); }

:root[data-theme="light"] .world[data-world="signal"]   { --bg:#e9eef2; --ink:#0a121c; --soft:#4a5866; --accent:#0b7c84; --accent2:#9a5f00; --line:rgba(10,18,28,0.34); --card:rgba(10,18,28,0.04); }
:root[data-theme="light"] .world[data-world="operator"] { --bg:#eef3ef; --ink:#10201f; --soft:#51625f; --accent:#0f7a52; --accent2:#a36b00; --line:rgba(16,32,31,0.45); --card:rgba(16,32,31,0.04); }
:root[data-theme="light"] .world[data-world="gamelab"]  { --bg:#f3f6fc; --ink:#15306b; --soft:#4f6396; --accent:#cc4a2c; --accent2:#15306b; --line:rgba(21,48,107,0.62); --card:rgba(21,48,107,0.05); }
:root[data-theme="light"] .world[data-world="arcade"]   { --bg:#f1eeff; --ink:#141033; --soft:#57537a; --accent:#00809e; --accent2:#6b3fe0; --accent3:#d7336a; --line:rgba(0,128,158,0.9); --card:rgba(107,63,224,0.06); }
:root[data-theme="light"] .world[data-world="homelab"]  { --bg:#eaf0f8; --ink:#142035; --soft:#53627a; --accent:#b86e00; --accent2:#2f63c9; --line:rgba(20,32,53,0.5); --card:rgba(20,32,53,0.04); }
:root[data-theme="light"] .world[data-world="toolbox"]  { --bg:#ece2cc; --ink:#2a2114; --soft:#6d5d40; --accent:#b0760a; --accent2:#b2531b; --line:rgba(42,33,20,0.52); --card:rgba(42,33,20,0.04); }
:root[data-theme="light"] .world[data-world="student"]  { --bg:#e9f1ea; --ink:#173226; --soft:#4d6857; --accent:#2f7d4f; --accent2:#173226; --line:rgba(23,50,38,0.55); --card:rgba(23,50,38,0.04); }
:root[data-theme="light"] .world[data-world="archive"]  { --bg:#e6e8eb; --ink:#17191d; --soft:#5a5e66; --accent:#8f640a; --accent2:#17191d; --line:rgba(23,25,29,0.45); --card:rgba(23,25,29,0.04); }
/* The finale stays dark in both themes: the house lights go down. */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
:root[data-motion="off"] { scroll-behavior: auto; }
body { margin: 0; background: var(--page-bg); color: var(--page-ink); font: 400 1.0625rem/1.6 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent, var(--page-accent)); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 60; background: #fff; color: #000; padding: 8px 12px; }
.skip:focus { left: 16px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; }
[hidden] { display: none !important; }

/* chrome */
#spine { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; display: none; }
:root[data-motion="on"] #spine { display: block; }
main { position: relative; z-index: 1; }
.top { position: fixed; z-index: 50; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: calc(14px + env(safe-area-inset-top, 0px)) 20px 14px; pointer-events: none; color: var(--page-ink); }
.top > * { pointer-events: auto; }
.mark { font: 800 22px/1 "Anybody", sans-serif; font-variation-settings: "wdth" 80; text-decoration: none; letter-spacing: -.02em; display: inline-flex; align-items: baseline; gap: 10px; }
.mark span { font: 500 11px/1 var(--mono); letter-spacing: .02em; opacity: .7; }
.controls { display: flex; gap: 6px; font: 500 12px/1 var(--mono); }
.controls button { font: inherit; color: var(--page-ink); background: color-mix(in srgb, var(--page-bg) 70%, transparent); border: 1px solid color-mix(in srgb, var(--page-ink) 28%, transparent); border-radius: 999px; padding: 8px 12px; cursor: pointer; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); white-space: nowrap; }
.controls button:hover { border-color: var(--page-ink); }
.controls .home-link { color: var(--page-ink); text-decoration: none; border: 1px solid color-mix(in srgb, var(--page-ink) 28%, transparent); border-radius: 999px; padding: 8px 12px; background: color-mix(in srgb, var(--page-bg) 70%, transparent); white-space: nowrap; }
.controls .home-link:hover { border-color: var(--page-ink); }
.controls .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 7px; border: 1px solid currentColor; }
.controls button[aria-pressed="true"] .dot { background: var(--page-accent); border-color: var(--page-accent); }

.pager { position: fixed; z-index: 50; left: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); display: flex; align-items: center; gap: 12px; padding: 9px 14px 9px 10px; border-radius: 999px; background: color-mix(in srgb, var(--page-bg) 78%, transparent); border: 1px solid color-mix(in srgb, var(--page-ink) 16%, transparent); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); color: var(--page-ink); }
.pager ol { display: flex; gap: 4px; margin: 0; padding: 0; list-style: none; }
.pager a { display: block; width: 18px; height: 18px; border-radius: 50%; position: relative; }
.pager a::after { content: ""; position: absolute; inset: 5px; border-radius: 50%; background: var(--dot); opacity: .55; transition: transform .25s, opacity .25s; box-shadow: 0 0 0 1px color-mix(in srgb, var(--page-ink) 25%, transparent); }
.pager a:hover::after { opacity: 1; }
.pager a[aria-current="true"]::after { opacity: 1; transform: scale(1.5); }
.pager-name { font: 500 12px/1 var(--mono); min-width: 96px; }

/* worlds */
.world { position: relative; min-height: 100vh; min-height: 100svh; padding-block: 120px; background: var(--bg); color: var(--ink); overflow: hidden; display: flex; align-items: center; }
:root[data-motion="on"] .world { background: transparent; }
.wrap { width: min(1240px, 100%); margin-inline: auto; padding-inline: clamp(16px, 5vw, 64px); }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.figure { position: relative; aspect-ratio: 4 / 3; width: 100%; }
.figure-wide { aspect-ratio: 16 / 6; margin-top: 28px; }
:root[data-motion="off"] .figure { display: none; }
.fig-label { position: absolute; left: var(--x); top: var(--y); font: 500 11px/1 var(--mono); color: var(--soft); }
.coord { font: 500 12px/1.4 var(--mono); color: var(--soft); letter-spacing: .02em; margin: 0 0 18px; }
.coord b { color: var(--accent); font-weight: 500; }
.body-copy { max-width: 46ch; margin-top: 22px; }
div.body-copy { display: grid; gap: 12px; }
.status { display: inline-block; font: 500 11px/1 var(--mono); padding: 6px 9px; border: 1px dashed var(--accent3, var(--accent)); color: var(--accent3, var(--accent)); margin-top: 20px; }
.hint { margin-top: 16px; font: 400 12px/1.5 var(--mono); color: var(--soft); }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 16px; font: 600 13px/1 "Barlow Semi Condensed", sans-serif; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; border: 1px solid var(--ink); }
.btn.solid { background: var(--ink); color: var(--bg); }

/* 1 signal: Anybody + Instrument Sans */
.name { font-family: "Anybody", "Arial Narrow", sans-serif; font-weight: 800; font-variation-settings: "wdth" 80; font-size: clamp(3.4rem, 9.6vw, 9.2rem); line-height: .86; letter-spacing: -.01em; text-transform: uppercase; margin: 0 0 28px; }
.name .line { display: block; white-space: nowrap; }
.name .ch { display: inline-block; }
:root[data-motion="off"] .name .ch { font-variation-settings: "wdth" 80 !important; }
.w-signal .lede { font-size: clamp(1.15rem, 1.8vw, 1.45rem); line-height: 1.45; max-width: 30ch; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 26px; font: 500 12px/1.4 var(--mono); color: var(--soft); }
.readout { margin-top: 32px; min-height: 3em; font: 400 13px/1.5 var(--mono); color: var(--accent); max-width: 44ch; }

/* 2 operator: IBM Plex Sans */
.w-operator h2 { font: 300 clamp(2.6rem, 5.6vw, 5rem)/1 "IBM Plex Sans", sans-serif; letter-spacing: -.02em; max-width: 12ch; }
.w-operator .body-copy p:last-child { color: var(--soft); }
.route { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 0; max-width: 360px; counter-reset: r; }
.route li { position: relative; padding: 10px 0 10px 26px; border-left: 1px solid var(--line); font: 600 1rem/1.3 "IBM Plex Sans", sans-serif; }
.route li::before { content: ""; position: absolute; left: -5px; top: 15px; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent); }
.route small { display: block; font: 400 12px/1.4 var(--mono); color: var(--soft); margin-top: 2px; }

/* 3 game lab: Newsreader + Barlow Semi Condensed */
.w-gamelab { font-family: "Barlow Semi Condensed", "Arial Narrow", sans-serif; font-weight: 500; }
.w-gamelab h2 { font: 400 clamp(2.6rem, 5vw, 4.6rem)/1 "Newsreader", Georgia, serif; }
.w-gamelab h2 i { display: block; font-style: italic; color: var(--soft); font-size: .5em; line-height: 1.15; margin-top: 12px; }
.w-gamelab .body-copy { font-size: 1.12rem; line-height: 1.5; }
.legend { margin-top: 24px; padding: 16px 18px; border: 1px solid var(--line); min-height: 124px; background: var(--card); }
.legend .lg-mark { font: 500 11px/1.3 var(--mono); color: var(--accent); }
.legend .lg-title { font: italic 400 1.4rem/1.2 "Newsreader", Georgia, serif; margin: 6px 0 8px; }
.legend ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 1.05rem; }
.legend ul a { text-decoration: none; border-bottom: 1px solid var(--line); }
.legend ul a:hover { border-color: var(--accent); }
.plan-wrap { margin: 0; }
#plan { width: 100%; height: auto; display: block; overflow: visible; }
#plan .wall { fill: none; stroke: var(--line); stroke-width: 2; vector-effect: non-scaling-stroke; }
#plan .outer { fill: none; stroke: var(--ink); stroke-width: 2.5; vector-effect: non-scaling-stroke; }
#plan .room-fill { fill: var(--ink); fill-opacity: 0; transition: fill-opacity .25s; }
#plan a:hover .room-fill, #plan a:focus .room-fill, #plan a.is-active .room-fill { fill-opacity: .12; }
#plan a { outline: none; }
#plan a:focus-visible .room-fill { stroke: var(--accent); stroke-width: 2; }
#plan .rn { font: 600 24px/1 "Newsreader", Georgia, serif; fill: var(--ink); text-anchor: middle; }
#plan .rl { font: 600 9px/1 "Barlow Semi Condensed", sans-serif; letter-spacing: .14em; fill: var(--soft); text-anchor: middle; text-transform: uppercase; }
#plan .col { fill: var(--ink); opacity: .6; }
#plan .imp { fill: none; stroke: var(--line); stroke-dasharray: 3 4; }
#plan .enter { font: 600 10px/1 "Barlow Semi Condensed", sans-serif; letter-spacing: .16em; fill: var(--accent); text-anchor: middle; }
#plan .arrow { stroke: var(--accent); fill: none; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
#plan .dim { stroke: var(--soft); stroke-width: 1; vector-effect: non-scaling-stroke; }
#plan .dimt { font: 400 9px/1 var(--mono); fill: var(--soft); text-anchor: middle; }
:root[data-motion="on"] #plan .wall, :root[data-motion="on"] #plan .outer { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.1s cubic-bezier(.6,0,.2,1); }
:root[data-motion="on"] .w-gamelab.is-live #plan .wall, :root[data-motion="on"] .w-gamelab.is-live #plan .outer { stroke-dashoffset: 0; }

/* 4 arcade: Big Shoulders Display */
.w-arcade { flex-direction: column; justify-content: center; }
.w-arcade h2 { font: 900 clamp(3.4rem, 11vw, 9.5rem)/.85 "Big Shoulders Display", "Arial Narrow", sans-serif; text-transform: uppercase; letter-spacing: .01em; }
.w-arcade h2 span { color: var(--accent2); }
.arcade-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px 28px; }
.arcade-row .body-copy { max-width: 40ch; font-size: 1.15rem; }

/* 5 homelab: Martian Mono */
.w-homelab h2 { font: 700 clamp(2rem, 4.2vw, 3.6rem)/1.05 "Martian Mono", var(--mono); font-variation-settings: "wdth" 80; letter-spacing: -.03em; max-width: 14ch; }
.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 8px; font-size: .98rem; }
.steps li { display: grid; grid-template-columns: 76px 1fr; align-items: baseline; }
.steps b { font: 500 12px/1 var(--mono); color: var(--accent); }
.rev { margin-top: 18px; font: 400 12px/1.5 var(--mono); color: var(--soft); }
.rev b { color: var(--accent); font-weight: 500; }

/* 6 toolbox: Saira Stencil One */
.w-toolbox h2 { font: 400 clamp(2.6rem, 5.6vw, 5rem)/.98 "Saira Stencil One", "Arial Narrow", sans-serif; letter-spacing: .005em; max-width: 12ch; }

/* 7 student: Literata italic */
.w-student h2 { font: italic 500 clamp(2.4rem, 5vw, 4.4rem)/1.02 "Literata", Georgia, serif; letter-spacing: -.01em; max-width: 13ch; }

/* 8 archive: Bricolage Grotesque; each channel speaks in its own edition's face */
.w-archive h2 { font: 800 clamp(2.4rem, 5vw, 4.6rem)/.95 "Bricolage Grotesque", sans-serif; letter-spacing: -.03em; max-width: 13ch; }
.channel-row { display: flex; gap: 8px; margin-top: 26px; }
.knob { font: 500 12px/1 var(--mono); color: var(--ink); background: none; border: 1px solid var(--line); padding: 10px 14px; cursor: pointer; border-radius: 999px; min-width: 42px; }
.knob:hover { border-color: var(--accent); }
.channels { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.channels button { font: 500 11px/1 var(--mono); color: var(--soft); background: none; border: 1px solid transparent; padding: 7px 9px; cursor: pointer; }
.channels button[aria-pressed="true"] { color: var(--ink); border-color: var(--accent); }
.tv-wrap { position: relative; padding: 9% 9% 14%; }
.tv { --e-bg: #fff; --e-ink: #000; --e-acc: #000; position: relative; background: var(--e-bg); color: var(--e-ink); padding: clamp(18px, 3vw, 34px); aspect-ratio: 4 / 3; display: grid; align-content: center; gap: 10px; border-radius: 18px / 22px; transition: background .35s, color .35s; overflow: hidden; }
.tv::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(to bottom, rgba(0,0,0,.06) 0 1px, transparent 1px 3px); pointer-events: none; }
.tv.flip { animation: flip .32s steps(4); }
@keyframes flip { 0% { filter: brightness(2) contrast(.4); } 50% { filter: brightness(.3); } 100% { filter: none; } }
:root[data-motion="off"] .tv.flip { animation: none; }
.tv .e-era { font: 500 12px/1 var(--mono); color: var(--e-acc); }
.tv .e-name { font-size: clamp(2rem, 4.4vw, 3.6rem); line-height: 1; }
.tv .e-desc { font-size: .98rem; opacity: .85; max-width: 44ch; }
.tv .e-open { justify-self: start; font: 500 12px/1 var(--mono); color: var(--e-ink); text-decoration: none; border: 1px solid currentColor; padding: 9px 11px; margin-top: 6px; }
:root[data-motion="off"] .tv-wrap { padding: 0; }

/* 9 finale: Cormorant Garamond */
.w-finale { align-items: flex-end; padding-block: 120px 110px; min-height: 120svh; }
.stage { position: absolute; inset: 0; }
.stage img { width: 100%; height: 100%; object-fit: cover; object-position: 72% 50%; display: block; }
.stage svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.stage .beam { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(42% 60% at var(--sx, 78%) var(--sy, 72%), rgba(116,186,196,.12), transparent 70%); mix-blend-mode: screen; }
.orbit { position: absolute; inset: 0; pointer-events: none; }
.orbit a { position: absolute; left: 0; top: 0; pointer-events: auto; display: flex; align-items: center; gap: 8px; padding: 7px 11px 7px 7px; border-radius: 999px; font: 500 11px/1 var(--mono); color: #e3f1f2; background: rgba(5,18,26,.72); border: 1px solid rgba(116,186,196,.4); text-decoration: none; white-space: nowrap; will-change: transform; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.orbit a i { width: 12px; height: 12px; border-radius: 50%; background: var(--dot); box-shadow: 0 0 12px var(--dot); }
.orbit a:hover, .orbit a:focus-visible { border-color: #e3f1f2; }
:root[data-motion="off"] .orbit { position: static; display: flex; flex-wrap: wrap; gap: 8px; padding: 0 16px; margin-top: 16px; }
:root[data-motion="off"] .orbit a { position: static; }
.about { position: relative; max-width: 560px; }
.w-finale h2 { font: italic 500 clamp(2.8rem, 6vw, 5.4rem)/.95 "Cormorant Garamond", Georgia, serif; }
.contact { margin-top: 28px; display: grid; gap: 10px; font: 400 14px/1.4 var(--mono); }
.contact-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.contact-row .k { color: var(--soft); min-width: 70px; }
.copy-btn { font: inherit; font-size: 12px; background: none; color: var(--accent); border: 1px solid var(--accent); padding: 5px 9px; cursor: pointer; }
.foot { position: relative; z-index: 1; padding: 26px 16px 90px; text-align: center; font: 400 12px/1.5 var(--mono); color: #93b6bb; background: #05121a; }

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; }
  .split > .figure, .split > .plan-wrap, .split > .tv-wrap { order: -1; }
  .figure { max-width: 520px; }
  .world { padding-block: 96px 110px; }
  .pager-name { display: none; }
  .mark span { display: none; }
}
@media (max-width: 560px) {
  .pager a { width: 16px; }
  .w-finale { display: block; padding-block: 0 120px; min-height: 0; }
  .stage { position: relative; height: 74svh; margin-bottom: 8px; }
  .stage img { object-position: 82% 62%; }
  .orbit a span { display: none; }
  .orbit a { padding: 7px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }