:root {
  color-scheme: dark;
  --ground: #080b0c;
  --panel: #0f1517;
  --line: #22313a;
  --ink: #e6eef0;
  --dim: #9fb1b6;
  --water: #4fc3d0;
  --deep: #0d2a33;
  --foam: #c8f1f5;
  --earth: #b08a5a;
  --ember: #f36523;
  --heading: "Big Shoulders", "Arial Narrow", sans-serif;
  --body: Archivo, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 100%/1.7 var(--body); }
a { color: var(--water); text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--foam); }
a:focus-visible { outline: 2px solid var(--water); outline-offset: 5px; }
img, svg { max-width: 100%; }
.shell { max-width: 72rem; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); }
.skip { position: absolute; top: .5rem; left: .5rem; z-index: 2; padding: .6rem 1rem; background: var(--deep); transform: translateY(-200%); }
.skip:focus { transform: none; }

.topbar { border-bottom: 1px solid var(--line); }
.topbar .shell { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1rem; padding-bottom: 1rem; }
.bytefoundry { display: inline-flex; align-items: center; gap: .6rem; color: var(--ink); font: 700 1.1rem/1 var(--heading); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; }
.bytefoundry img { display: block; }
.bytefoundry b { color: var(--ember); }
.nav { display: flex; flex-wrap: wrap; gap: clamp(.8rem, 3vw, 1.5rem); font-size: .82rem; }
.nav a { color: var(--dim); text-decoration: none; }
.nav a:hover { color: var(--water); }

.hero { padding: clamp(3rem, 8vw, 5rem) 0 2rem; }
.identity { display: flex; align-items: center; gap: .85rem; margin-bottom: 1.4rem; }
.identity svg { width: 44px; height: 44px; }
.wordmark { font: 700 1.65rem/1 var(--heading); letter-spacing: .035em; text-transform: uppercase; }
.kicker, .eyebrow { font: 500 .7rem/1.5 var(--mono); letter-spacing: .15em; text-transform: uppercase; color: var(--water); }
.eyebrow { margin: 0 0 1.2rem; }
h1, h2, h3 { font-family: var(--heading); font-weight: 700; line-height: 1.1; text-wrap: balance; }
h1 { margin: 0 0 1.2rem; max-width: 15ch; font-size: clamp(2.9rem, 7.4vw, 5.4rem); text-transform: uppercase; }
h1 span { color: var(--water); }
.lede { max-width: 62ch; margin: 0; color: var(--dim); font-size: clamp(1.06rem, 2vw, 1.2rem); }
.actions { display: flex; align-items: center; gap: 1rem 1.6rem; flex-wrap: wrap; margin-top: 1.8rem; }
.button { display: inline-block; background: var(--water); color: var(--ground); border: 1px solid var(--water); border-radius: 3px; padding: .7rem 1.1rem; font-size: .9rem; font-weight: 600; text-decoration: none; }
.button:hover { background: var(--foam); color: var(--ground); }
.actions > a:not(.button) { font-size: .9rem; }

/* pictures: every one is badged as an engine capture or as concept art */
.shot { position: relative; margin: 0; }
.shot img, .shot svg { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 5px; background: var(--panel); }
.shot .badge { position: absolute; top: .7rem; left: .7rem; padding: .3rem .55rem; border-radius: 3px; font: 500 .62rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; background: rgba(8, 11, 12, .82); color: var(--water); border: 1px solid rgba(79, 195, 208, .45); }
.shot .badge.concept { color: #f2c98b; border-color: rgba(242, 201, 139, .5); }
figcaption { margin-top: .7rem; color: var(--dim); font-size: .8rem; line-height: 1.6; }
figcaption strong { color: var(--ink); font-weight: 600; }
.hero-shot { margin-top: 2.2rem; }

/* hard dependencies, in the hero */
.deps { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 1.25rem 2rem; margin-top: 2.4rem; padding: clamp(1.25rem, 3vw, 1.75rem); border: 1px solid var(--line); border-left: 3px solid var(--water); border-radius: 4px; background: var(--panel); }
.deps-intro h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: .6rem; }
.deps-intro p:last-child { margin: 0; color: var(--dim); font-size: .95rem; max-width: 52ch; }
.deps-stack { margin: 0; align-self: center; }
.deps-stack svg { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 4px; }
.deps-cards { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.dep { background: var(--ground); border: 1px solid var(--line); border-top: 2px solid var(--water); border-radius: 4px; padding: 1.1rem 1.2rem 1.3rem; }
.dep.vp2 { border-top-color: #b08a5a; }
.dep-head { display: flex; align-items: center; gap: .85rem; margin-bottom: 1rem; }
.dep-head .icon { width: 40px; height: 40px; flex: none; }
.dep h3 { margin: 0; font-size: 1.35rem; }
.dep h3 span { display: block; margin-top: .2rem; font: 500 .66rem/1.4 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--water); }
.dep.vp2 h3 span { color: #d9b98c; }
.dep-shots { margin: 0 0 1rem; }
.dep-shots .thumbs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; margin-top: .5rem; }
.dep-shots .thumbs img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid var(--line); border-radius: 4px; }
.dep-shots figcaption { font-size: .75rem; }
.shot .badge.maker { color: var(--ink); border-color: rgba(230, 238, 240, .45); }
.dep p { margin: 0; color: var(--dim); font-size: .9rem; }
.dep p.dep-fine { margin-top: .7rem; font-size: .82rem; }
.deps-note { grid-column: 1 / -1; margin: 0; padding-top: .8rem; border-top: 1px solid var(--line); color: var(--dim); font-size: .84rem; }

section { padding: clamp(3rem, 6vw, 4.5rem) 0; }
.band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0b1012; }
.section-intro { margin-bottom: 2rem; }
.kicker { margin: 0 0 .75rem; }
h2 { margin: 0 0 .8rem; font-size: clamp(2rem, 4vw, 2.8rem); }
.section-intro > p:last-child { max-width: 64ch; margin: 0; color: var(--dim); }
h3 { margin: .8rem 0 .6rem; font-size: 1.45rem; }

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 1.5rem; }
.feature .icon { display: block; width: 44px; height: 44px; }
.feature .number { display: block; margin-top: .9rem; font: 500 .7rem/1 var(--mono); color: var(--water); letter-spacing: .06em; }
.feature p { color: var(--dim); margin: 0; font-size: .92rem; }

.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.6rem 1.25rem; }
.gallery .wide { grid-column: 1 / -1; }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; }
.pair figcaption { grid-column: 1 / -1; margin-top: .1rem; }

.diagram { margin: 0 0 2rem; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin: 0 0 2.5rem; padding: 0; list-style: none; }
.stats li { border: 1px solid var(--line); border-top: 2px solid var(--water); border-radius: 4px; background: var(--panel); padding: 1.1rem 1.2rem; }
.stats b { display: block; font: 700 2.2rem/1 var(--heading); color: var(--ink); }
.stats span { display: block; margin-top: .5rem; font-size: .84rem; color: var(--dim); line-height: 1.5; }

.concepts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.6rem 1.25rem; }
.concepts h3 { font-size: 1.3rem; margin-top: 1rem; }
.concepts p { margin: 0; color: var(--dim); font-size: .92rem; }

.stages { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.stage { border: 1px solid var(--line); border-radius: 4px; background: var(--panel); padding: 1.4rem 1.5rem; }
.stage.now { border-top: 3px solid var(--water); }
.stage.doing { border-top: 3px solid #8fd6c2; }
.stage.later { border-style: dashed; background: transparent; }
.stage h3 { margin-top: 0; display: flex; align-items: center; gap: .6rem; }
.stage h3::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--water); flex: none; }
.stage.doing h3::before { background: linear-gradient(90deg, #8fd6c2 50%, transparent 50%); border: 1.5px solid #8fd6c2; }
.stage.later h3::before { background: transparent; border: 1.5px solid var(--dim); }
.stage ul { margin: 0; padding-left: 1.1rem; color: var(--dim); font-size: .92rem; }
.stage li + li { margin-top: .35rem; }
.stage li b { color: var(--ink); font-weight: 500; }

/* underground */
.ug .shot { margin-bottom: 0; }
.ug > .shell > .shot { margin-bottom: 2rem; }
.ug-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin: 0 0 1.2rem; }
.ug-note { margin: 0 0 2.5rem; color: var(--dim); font-size: .8rem; max-width: 80ch; }
.ug-cards { margin-bottom: 2.5rem; }
.ug-plan { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 1.25rem; align-items: start; }

/* speculation section: amber, never mistaken for what's built */
.spec { border-top: 1px solid var(--line); background: linear-gradient(180deg, #0d0b08 0%, var(--ground) 40%); }
.spec .kicker { color: #f2c98b; display: flex; align-items: center; gap: .7rem; flex-wrap: wrap; }
.spec-tag { padding: .25rem .5rem; border: 1px solid rgba(242, 201, 139, .6); border-radius: 3px; color: #f2c98b; }
.spec .shot { margin-bottom: 2rem; }
.spec-cards { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1rem; margin: 0 0 2rem; }
.spec-cards .spec-card { grid-column: span 2; }
.spec-cards .spec-card:nth-child(n+4) { grid-column: span 3; }
.spec-card { background: var(--panel); border: 1px solid var(--line); border-top: 3px solid #f2c98b; border-radius: 4px; padding: 1.3rem 1.3rem 1.2rem; display: flex; flex-direction: column; }
.spec-card.planned { border-top-color: #8fd6c2; }
.spec-card.built { border-top-color: var(--water); }
.spec-card.spec { border-style: dashed; border-top-style: solid; }
.spec-card .number { font: 500 .68rem/1 var(--mono); letter-spacing: .1em; color: #f2c98b; }
.spec-card.planned .number { color: #8fd6c2; }
.spec-card.built .number { color: var(--water); }
.spec-card h3 { font-size: 1.3rem; margin: .7rem 0 .5rem; }
.spec-card p { margin: 0; color: var(--dim); font-size: .88rem; }
.spec-card p.status-line { margin-top: auto; padding-top: .9rem; font: 500 .66rem/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink); }
.spec-precedent { margin: 0 0 2.2rem; padding: 1rem 1.2rem; border-left: 3px solid #f2c98b; background: var(--panel); border-radius: 3px; }
.spec-precedent p { margin: 0; color: var(--dim); font-size: .92rem; max-width: 80ch; }
.spec-precedent strong { color: var(--ink); }

.availability { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem 3rem; align-items: start; }
.availability .section-intro { margin: 0; }
.box { border: 1px solid var(--line); border-left: 3px solid var(--water); background: var(--panel); border-radius: 3px; padding: 1.5rem; }
.box h3 { margin-top: 0; }
.box p, .box li { color: var(--dim); font-size: .94rem; }
.box p { margin: 0 0 1rem; }
.box ul { margin: 0 0 1rem; padding-left: 1.1rem; }
.box p:last-child, .box ul:last-child { margin-bottom: 0; }
.box strong { color: var(--ink); font-weight: 600; }
.status-label { display: inline-flex; align-items: center; gap: .6rem; font: 500 .72rem/1.5 var(--mono); color: var(--water); }
.status-label::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--water); }
.fineprint { max-width: 64ch; margin: 1.2rem 0 0; font-size: .88rem; color: var(--dim); }

footer { border-top: 1px solid var(--line); }
footer .shell { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.5rem; padding-bottom: 2rem; color: var(--dim); font-size: .85rem; }
footer a { color: var(--ember); }

@media (max-width: 58rem) {
  .features, .stages, .spec-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .spec-cards .spec-card, .spec-cards .spec-card:nth-child(n+4) { grid-column: auto; }
  .ug-plan { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 40rem) {
  .features, .stages, .gallery, .concepts, .availability, .stats, .deps, .spec-cards, .ug-steps { grid-template-columns: 1fr; }
  .deps-cards { grid-template-columns: 1fr; }
  .gallery .wide { grid-column: auto; }
  .pair { grid-template-columns: 1fr; }
  .nav { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.concepts + .stages { margin-top: 3rem; }
.diagram.milestones { margin: 2.5rem 0 0; }