/* Sperrin Labs: one stylesheet for every page.
   Black and white bands, light display type, monospace instrument labels, square edges,
   and a single signal colour. */
:root {
  --black: #050605;
  --ink: #0b0d0b;
  --white: #ffffff;
  --paper: #f4f5f2;
  --grey: #8a8f89;
  --grey-d: #5f655e;
  --rule-d: rgba(255, 255, 255, .16);
  --rule-l: #d9dcd6;
  --signal: #c6f432;
  --sans: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--black); color: var(--white); font: 400 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, h4 { font-weight: 300; margin: 0; letter-spacing: -.01em; }
p { margin: 0; }
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 760px) { .wrap { padding: 0 28px; } }

/* Type */
.display { font-size: clamp(48px, 8.4vw, 118px); line-height: .98; font-weight: 300; letter-spacing: .015em; }
.h-xl { font-size: clamp(44px, 6vw, 88px); line-height: 1.02; }
.h-lg { font-size: clamp(34px, 4.2vw, 60px); line-height: 1.06; }
.h-md { font-size: clamp(22px, 2vw, 28px); line-height: 1.25; font-weight: 400; }
.lede { font-size: 18px; line-height: 1.6; max-width: 54ch; }
.mono, .label { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; font-weight: 400; }
.label { color: var(--grey); }
.muted { color: var(--grey); }
.num { font-variant-numeric: tabular-nums; }

/* Bands */
.band { padding: 112px 0; }
@media (max-width: 760px) { .band { padding: 72px 0; } }
.light { background: var(--white); color: var(--ink); }
.light .label, .light .muted { color: var(--grey-d); }
.paper { background: var(--paper); color: var(--ink); }
.paper .label, .paper .muted { color: var(--grey-d); }

/* Announcement bar */
.bar { display: block; background: var(--signal); color: var(--black); text-align: center; padding: 9px 16px; font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; text-decoration: none; }
.bar u { text-underline-offset: 3px; }
.bar:hover u { text-decoration-thickness: 2px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(5, 6, 5, .86); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule-d); }
.nav-in { display: grid; grid-template-columns: 1fr auto 1fr; align-items: stretch; min-height: 56px; }
.nav-links { display: flex; align-items: center; gap: 24px; padding-left: 16px; font-size: 15px; }
.nav-links a { text-decoration: none; color: rgba(255, 255, 255, .78); }
.nav-links a:hover, .nav-links a[aria-current] { color: #fff; }
.wordmark { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--mono); font-size: 14px; letter-spacing: .32em; text-transform: uppercase; justify-self: center; }
.wordmark svg { width: 22px; height: 22px; color: var(--signal); }
.nav-cta { display: flex; justify-content: flex-end; }
.nav-cta a { display: flex; align-items: center; padding: 0 22px; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; }
.nav-cta .w { background: #fff; color: var(--black); }
.nav-cta .s { background: var(--signal); color: var(--black); }
.nav-cta a:hover { filter: brightness(.92); }
@media (max-width: 900px) {
  .nav-in { grid-template-columns: auto 1fr; }
  .nav-links { display: none; }
  .wordmark { justify-self: start; padding-left: 16px; letter-spacing: .22em; }
  .nav-cta .w { display: none; }
}

/* Buttons: square, outlined or solid, mono caps */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 46px; padding: 0 26px; border: 1px solid currentColor; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; cursor: pointer; background: transparent; color: inherit; transition: background-color .2s, color .2s; }
.btn svg { width: 14px; height: 14px; }
.btn-solid { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-solid:hover { background: #2a2e2a; border-color: #2a2e2a; }
.btn-white { background: #fff; color: var(--black); border-color: #fff; }
.btn-white:hover { background: transparent; color: #fff; }
.btn-line:hover { background: var(--ink); color: #fff; }
.dark .btn-line:hover, .btn-line.on-dark:hover { background: #fff; color: var(--black); }
.btn-signal { background: var(--signal); color: var(--black); border-color: var(--signal); }
.btn-signal:hover { filter: brightness(.92); }
.btns { display: flex; flex-wrap: wrap; }
.btns .btn + .btn { border-left: 0; }
.link { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }
.link:hover { text-decoration-thickness: 2px; }

/* HUD details: corner brackets, readouts, detection boxes */
.hud-frame { position: relative; }
.hud-frame::before, .hud-frame::after { content: ""; position: absolute; top: 0; bottom: 0; width: 28px; border: 1px solid rgba(255, 255, 255, .85); pointer-events: none; }
.hud-frame::before { left: 0; border-right: 0; }
.hud-frame::after { right: 0; border-left: 0; }
.readout { font-family: var(--mono); font-size: 13px; line-height: 1.55; color: rgba(255, 255, 255, .9); }
.box { position: absolute; border: 1.5px solid var(--signal); }
.box span { position: absolute; left: -1.5px; top: -20px; background: var(--signal); color: var(--black); font-family: var(--mono); font-size: 10px; letter-spacing: .06em; text-transform: uppercase; padding: 2px 6px; white-space: nowrap; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 40px 0 56px; }
.hero-coords { position: absolute; left: 16px; top: 32px; }
@media (min-width: 760px) { .hero-coords { left: 28px; } }
.hero-stage { position: relative; width: min(820px, 100%); margin: 40px auto 0; aspect-ratio: 1 / 1; max-height: 720px; display: grid; place-items: center; }
.orb { position: absolute; width: min(600px, 86vw); aspect-ratio: 1; border-radius: 50%; overflow: hidden; background: #111; }
.orb img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.9) contrast(1.05); }
.orb::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 50%, rgba(5, 6, 5, .1), rgba(5, 6, 5, .55) 75%); }
.hero-title { position: relative; z-index: 2; text-align: center; text-shadow: 0 4px 30px rgba(0, 0, 0, .55); }
.hero-frame { position: absolute; z-index: 1; width: min(760px, 94%); height: 46%; top: 27%; }
.hero-frame .angle { position: absolute; left: 0; bottom: -24px; }
.hero-cta { position: relative; z-index: 2; margin-top: 34px; display: flex; justify-content: center; }
.hero-cta .btn { background: rgba(5, 6, 5, .82); border-color: #fff; color: #fff; min-width: 300px; }
.hero-cta .btn:hover { background: #fff; color: var(--black); }
.hero-foot { display: grid; gap: 24px; margin-top: 28px; align-items: end; }
@media (min-width: 900px) { .hero-foot { grid-template-columns: 1fr auto; } }
.hero-foot .lede { font-size: 19px; }
.hero-inner { display: flex; flex-direction: column; align-items: center; }
@media (max-width: 640px) { .hero-stage .box:nth-child(n+3) { display: none; } .box span { max-width: 46vw; overflow: hidden; text-overflow: ellipsis; } .hero-stage { margin-top: 64px; } .hero-title .display { font-size: 44px; } .hero-cta .btn { min-width: 0; } }

/* Model strip (marquee) */
.strip { border-top: 1px solid var(--rule-d); border-bottom: 1px solid var(--rule-d); padding: 40px 0; }
.strip h2 { text-align: center; font-size: clamp(20px, 2vw, 26px); font-weight: 400; margin-bottom: 28px; }
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; width: max-content; gap: 64px; }
.marquee-track span { font-size: clamp(22px, 2.6vw, 34px); font-weight: 500; letter-spacing: -.01em; white-space: nowrap; color: rgba(255, 255, 255, .92); display: flex; align-items: center; gap: 14px; }
.marquee-track span::before { content: ""; width: 8px; height: 8px; background: var(--signal); }
@media (prefers-reduced-motion: no-preference) { .marquee-track { animation: marquee 38s linear infinite; } }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Section heads: big title left, copy right */
.head { display: grid; gap: 28px; margin-bottom: 56px; }
@media (min-width: 960px) { .head { grid-template-columns: 1.2fr 1fr; align-items: start; } }
.head p { font-size: 17px; max-width: 48ch; margin-bottom: 22px; }

/* Bordered grids */
.cells { display: grid; border-top: 1px solid var(--rule-l); border-left: 1px solid var(--rule-l); }
.cells > * { border-right: 1px solid var(--rule-l); border-bottom: 1px solid var(--rule-l); }
.dark .cells, .cells.d { border-color: var(--rule-d); }
.dark .cells > *, .cells.d > * { border-color: var(--rule-d); }
.c2 { grid-template-columns: 1fr; }
@media (min-width: 900px) { .c2 { grid-template-columns: 1fr 1fr; } }
.c3 { grid-template-columns: 1fr; }
@media (min-width: 900px) { .c3 { grid-template-columns: repeat(3, 1fr); } }
.c4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 900px) { .c4 { grid-template-columns: repeat(4, 1fr); } }

/* Experiment cards */
.xp { display: flex; flex-direction: column; padding: 14px; }
.xp-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #1a1d1a; }
.xp-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2, .7, .2, 1); }
.xp:hover .xp-img img { transform: scale(1.03); }
.xp-body { padding: 22px 8px 8px; display: grid; gap: 12px; flex: 1; align-content: start; }
.xp-body .h-md { font-size: 26px; }
.xp .btns { margin-top: 18px; }
.xp .btns .btn { flex: 1; }
.tag { display: inline-flex; align-items: center; gap: 8px; }
.tag::before { content: ""; width: 7px; height: 7px; background: currentColor; }
.tag.live { color: #4c8a14; }
.dark .tag.live, .tag.live.on-dark { color: var(--signal); }
@media (prefers-reduced-motion: no-preference) { .tag.live::before { animation: blink 1.6s steps(2, start) infinite; } }
@keyframes blink { to { visibility: hidden; } }
.xp-stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule-l); margin-top: 6px; padding-top: 14px; gap: 8px; }
.xp-stats b { display: block; font-size: 30px; font-weight: 300; line-height: 1.1; }

/* Funnel: pricing-table style big numbers */
.funnel .cell { padding: 18px 20px 22px; position: relative; }
.funnel .cell .big { font-size: clamp(54px, 7vw, 96px); font-weight: 300; line-height: 1; margin-top: 18px; display: flex; align-items: flex-start; gap: 6px; }
.funnel .cell .big sup { font-size: 14px; font-family: var(--mono); margin-top: 10px; color: var(--grey); }
.funnel .cell .meter { height: 3px; background: var(--rule-d); margin-top: 22px; }
.funnel .cell .meter i { display: block; height: 100%; background: var(--signal); width: 0; transition: width 1.4s cubic-bezier(.2, .7, .2, 1); }
.funnel .cell.pending .big { color: rgba(255, 255, 255, .35); }
.funnel-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; padding: 16px 20px; }

/* Numbered steps with rules */
.steps { display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 54px 1fr; gap: 6px 16px; padding: 24px 0 28px; border-top: 1px solid var(--rule-l); }
.dark .step, .step.d { border-color: var(--rule-d); }
.step .mono { padding-top: 6px; }
.step h3 { font-size: 22px; font-weight: 400; }
.step p { grid-column: 2; max-width: 52ch; }
.split { display: grid; gap: 48px; }
@media (min-width: 960px) { .split { grid-template-columns: 1fr 1fr; gap: 80px; } }

/* Project cards */
.proj { padding: 26px 24px 28px; display: grid; gap: 14px; align-content: start; }
.proj h3 { font-size: 28px; font-weight: 400; line-height: 1.15; }
.proj .kv { display: grid; grid-template-columns: 112px 1fr; gap: 8px 14px; font-size: 14px; border-top: 1px solid var(--rule-l); padding-top: 14px; }
.dark .proj .kv { border-color: var(--rule-d); }
.proj .kv dt { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--grey-d); padding-top: 3px; }
.dark .proj .kv dt { color: var(--grey); }
.proj .kv dd { margin: 0; }
.ms { display: flex; gap: 4px; margin-top: 4px; }
.ms i { flex: 1; height: 6px; background: var(--rule-l); }
.ms i.done { background: var(--ink); }
.ms i.in_progress { background: repeating-linear-gradient(90deg, var(--ink) 0 4px, transparent 4px 8px); }
.ms i.failed { background: #b13a2f; }
.dark .ms i { background: var(--rule-d); }
.dark .ms i.done { background: var(--signal); }
.dark .ms i.in_progress { background: repeating-linear-gradient(90deg, var(--signal) 0 4px, transparent 4px 8px); }
.empty { padding: 48px 24px; text-align: center; }
.proj.next { align-content: center; justify-items: center; text-align: center; min-height: 260px; color: var(--grey-d); }
.proj.next h3 { color: var(--grey-d); font-size: 22px; }
/* Detail page: one project per row, story on the left and the numbers on the right */
.proj-wide { grid-template-columns: 1fr; }
@media (min-width: 960px) { .proj-wide .proj { grid-template-columns: 1.15fr 1fr; column-gap: 56px; padding: 36px; } .proj-wide .proj > * { grid-column: 1; } .proj-wide .proj > .side { grid-column: 2; grid-row: 1 / span 6; align-self: start; display: grid; gap: 18px; } .proj-wide .proj .kv { border-top: 0; padding-top: 0; } }
.empty .h-md { margin: 12px 0 8px; }

/* Signal list + image panel (Cybele) */
.signals { display: grid; gap: 40px; }
@media (min-width: 960px) { .signals { grid-template-columns: 1fr 1.25fr; gap: 72px; align-items: start; } }
.siglist { list-style: none; padding: 0; margin: 0 0 40px; display: grid; gap: 8px; }
.siglist li { font-family: var(--mono); font-size: 13px; letter-spacing: .06em; text-transform: uppercase; display: flex; align-items: center; gap: 12px; }
.siglist li::before { content: ""; width: 14px; height: 1px; background: currentColor; }
.panel-img { position: relative; aspect-ratio: 4 / 4.2; overflow: hidden; background: #111; }
.panel-img > img { width: 100%; height: 100%; object-fit: cover; object-position: center 80%; filter: grayscale(1) contrast(1.1) brightness(.8); }
.panel-img .inset { position: absolute; left: -8%; top: 30%; width: 52%; aspect-ratio: 16 / 10; border: 1px solid #fff; overflow: hidden; box-shadow: 0 20px 50px rgba(0, 0, 0, .4); }
.panel-img .inset img { width: 100%; height: 100%; object-fit: cover; }
.panel-img .scale { position: absolute; left: 50%; top: 10px; transform: translateX(-50%); color: #fff; }
@media (max-width: 959px) { .panel-img .inset { left: 4%; } }

/* Tables */
.table-wrap { overflow-x: auto; }
table.t { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 15px; }
.t th { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--grey); font-weight: 400; text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--rule-d); white-space: nowrap; }
.t td { padding: 14px; border-bottom: 1px solid var(--rule-d); vertical-align: top; }
.light .t th, .paper .t th { color: var(--grey-d); border-color: var(--rule-l); }
.light .t td, .paper .t td { border-color: var(--rule-l); }
.t .r { text-align: right; }

/* Badges for how far a proposal got */
.badge { display: inline-block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; padding: 3px 7px; border: 1px solid currentColor; white-space: nowrap; }
.badge.winner { background: var(--signal); color: var(--black); border-color: var(--signal); }
.badge.finalist { color: var(--signal); }
.light .badge.finalist, .paper .badge.finalist { color: #4c8a14; }
.badge.proposed { color: var(--grey); }

/* FAQ */
.faq details { border-top: 1px solid var(--rule-l); }
.faq details:last-child { border-bottom: 1px solid var(--rule-l); }
.faq summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 54px 1fr 24px; gap: 12px; align-items: center; padding: 24px 0; font-size: clamp(18px, 1.8vw, 22px); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .pm { width: 18px; height: 18px; position: relative; }
.faq summary .pm::before, .faq summary .pm::after { content: ""; position: absolute; left: 0; right: 0; top: 8px; height: 1.5px; background: currentColor; transition: transform .3s; }
.faq summary .pm::after { transform: rotate(90deg); }
.faq details[open] .pm::after { transform: rotate(0); }
.faq .a { padding: 0 40px 26px 66px; max-width: 70ch; }
@media (max-width: 600px) { .faq .a { padding: 0 0 22px; } }

/* Forms */
.form { display: grid; gap: 18px; }
.form label { display: grid; gap: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--grey-d); }
.form input, .form select, .form textarea { font: 400 16px/1.4 var(--sans); color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid var(--ink); border-radius: 0; padding: 10px 0; width: 100%; }
.form textarea { min-height: 110px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-bottom-width: 2px; }
.form .row2 { display: grid; gap: 18px; }
@media (min-width: 600px) { .form .row2 { grid-template-columns: 1fr 1fr; } }
.form .btn { justify-self: start; }
.fine { font-size: 13px; }

/* Footer */
footer { background: var(--white); color: var(--ink); padding: 72px 0 0; }
.foot { display: grid; gap: 40px; padding-bottom: 56px; }
@media (min-width: 900px) { .foot { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.foot h3 { font-size: 22px; font-weight: 400; margin-bottom: 12px; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.foot a { text-decoration: none; font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.foot a:hover { text-decoration: underline; text-underline-offset: 4px; }
.foot .wordmark { justify-self: start; letter-spacing: .28em; margin-bottom: 16px; padding: 0; }
.foot .wordmark svg { color: var(--ink); }
.legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; border-top: 1px solid var(--rule-l); padding: 22px 0 28px; }

/* Reveal motion: content only hides when main.js runs */
.js [data-reveal] { opacity: 0; transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); transition-delay: var(--d, 0ms); }
.js [data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal]:not(.in) { transform: translateY(20px); }
  .orb img { animation: settle 2.6s cubic-bezier(.2, .7, .2, 1) both; }
  .box { animation: lock 1.8s ease both; animation-delay: var(--b, 1s); }
}
@keyframes settle { from { opacity: 0; transform: scale(1.12); } to { opacity: 1; transform: none; } }
@keyframes lock { 0% { opacity: 0; transform: scale(1.6); } 40% { opacity: 1; } 55% { opacity: .3; } 70%, 100% { opacity: 1; transform: none; } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }
.light :focus-visible, .paper :focus-visible { outline-color: var(--ink); }

/* The totals row has up to six cells, so its numbers run smaller than the round funnel's. */
[data-h="totals"] .cell .big { font-size: clamp(40px, 4.4vw, 68px); }
[data-h="totals"] .cell { min-width: 0; display: flex; flex-direction: column; }
[data-h="totals"] .cell .big { margin-top: auto; padding-top: 18px; }