/* Bivalve · Direction C: Biolume */
:root {
  --abyss: #05080B;
  --trench: #0D1418;
  --edge: #1C2B30;
  --biolume: #6CFFB0;
  --cyan: #3DE0FF;
  --coral: #FF5A5F;
  --narrow: #FFD25A;
  --glow: #E8FFF4;
  --body: #B9D3C8;
  --muted: #6E8A80;

  --sans: "Space Grotesk", system-ui, sans-serif;
  --mono: "Space Mono", ui-monospace, monospace;

  --gutter: clamp(16px, 4vw, 56px);
  --max: 1240px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--abyss);
  color: var(--body);
  font: 400 17px/1.6 var(--sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--biolume); color: var(--abyss); }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { color: var(--glow); margin: 0; font-weight: 700; }
p { margin: 0 0 1em; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.hl-cy { color: var(--cyan); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--biolume); color: var(--abyss); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }

#sea { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
main, .nav, .foot { position: relative; z-index: 1; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
section { padding-top: clamp(80px, 12vw, 160px); }

/* type */
.display {
  font-size: clamp(50px, 7.6vw, 124px);
  line-height: .92;
  letter-spacing: -.045em;
  max-width: 9.5ch;
}
.display-sm { font-size: clamp(40px, 6.4vw, 96px); max-width: 14ch; margin: 0 auto; }
.h2 { font-size: clamp(34px, 4.6vw, 64px); line-height: 1; letter-spacing: -.035em; max-width: 16ch; margin-bottom: 20px; }
h3 { font-size: 20px; letter-spacing: -.01em; }
.lead { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.5; max-width: 34ch; color: var(--body); }
.kicker { font-size: 13px; color: var(--biolume); margin-bottom: 22px; display: inline-flex; align-items: center; gap: 10px; }
.sec-head { margin-bottom: clamp(40px, 6vw, 72px); }
.sec-head .muted { max-width: 58ch; }

.char { display: inline-block; will-change: transform, opacity; }
.wordwrap { display: inline-block; white-space: nowrap; }

/* dots / pills */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; flex: none; }
.dot-open { background: var(--biolume); box-shadow: 0 0 12px var(--biolume); }
.dot-narrow { background: var(--narrow); box-shadow: 0 0 12px var(--narrow); }
.dot-closed { background: var(--coral); box-shadow: 0 0 12px var(--coral); }
.pill { display: inline-flex; align-items: center; gap: 10px; border: 1px solid currentColor; border-radius: 999px; padding: 8px 16px; font-size: 13px; }
.pill-closed { color: var(--coral); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 24px; border-radius: 999px;
  font: 500 16px/1 var(--sans); cursor: pointer; border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  text-decoration: none !important;
}
.btn-primary { background: var(--biolume); color: var(--abyss); box-shadow: 0 0 0 0 rgba(108,255,176,.0); }
.btn-primary:hover { box-shadow: 0 0 32px rgba(108,255,176,.45); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { color: var(--glow); border-color: var(--edge); background: rgba(13,20,24,.6); backdrop-filter: blur(6px); }
.btn-ghost:hover { border-color: var(--biolume); color: var(--biolume); }

/* marks */
.mark line { stroke-linecap: round; }
.mark-sm { width: 30px; height: 28px; }
.mark-md { width: 84px; height: 77px; }
.mark-lg { width: clamp(140px, 18vw, 220px); height: auto; }
.mark-xl { width: 100%; height: auto; overflow: visible; }

/* nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  padding: 14px var(--gutter);
  background: linear-gradient(var(--abyss), rgba(5,8,11,0));
}
.nav.scrolled { background: rgba(5,8,11,.82); backdrop-filter: blur(12px); border-bottom: 1px solid var(--edge); }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--glow); text-decoration: none !important; }
.word { font: 700 15px/1 var(--sans); letter-spacing: .12em; }
.nav nav { display: flex; gap: 26px; margin-left: auto; }
.nav nav a { color: var(--body); font-size: 15px; }
.nav nav a:hover { color: var(--glow); text-decoration: none; }
.nav-cta { min-height: 40px; padding: 0 18px; font-size: 14px; }

/* hero */
.hero {
  position: relative; min-height: 100svh;
  display: grid; grid-template-columns: 1.25fr 1fr; grid-template-rows: 1fr auto;
  align-items: center; gap: 24px 40px;
  max-width: var(--max); margin: 0 auto;
  padding: 120px var(--gutter) 40px;
}
.hero-copy { grid-column: 1; }
.hero .display { max-width: none; }
.hero .lead { margin-top: 28px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-mark { position: relative; grid-column: 2; justify-self: center; width: min(100%, 440px); }
.halo {
  position: absolute; inset: -30%;
  background: radial-gradient(circle, rgba(108,255,176,.18), rgba(61,224,255,.06) 40%, transparent 68%);
  filter: blur(10px); pointer-events: none; transition: background .4s;
}
.hero-mark.is-closed .halo { background: radial-gradient(circle, rgba(255,90,95,.26), rgba(255,90,95,.06) 40%, transparent 68%); }
.hero-mark.is-narrow .halo { background: radial-gradient(circle, rgba(255,210,90,.18), transparent 64%); }
#heroMark { position: relative; filter: drop-shadow(0 0 18px rgba(108,255,176,.55)); }
.hero-mark.is-closed #heroMark { filter: drop-shadow(0 0 22px rgba(255,90,95,.8)); }
.hero-state {
  position: absolute; left: 50%; bottom: -36px; transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: 10px; font-size: 13px; color: var(--glow);
}

/* intake */
.intake {
  grid-column: 1 / -1; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px;
  margin-top: 56px; font-size: 12px; color: var(--muted);
}
.intake-track {
  position: relative; height: 56px; overflow: hidden;
  border-top: 1px solid var(--edge); border-bottom: 1px solid var(--edge);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.gate { position: absolute; top: 0; bottom: 0; left: 64%; width: 2px; background: var(--biolume); box-shadow: 0 0 16px var(--biolume); z-index: 2; transition: background .2s, box-shadow .2s; }
.gate.hit { background: var(--coral); box-shadow: 0 0 22px var(--coral); }
.ichip {
  position: absolute; top: 50%; left: 0; transform: translate3d(0,-50%,0);
  white-space: nowrap; font: 400 12px/1 var(--mono); color: var(--body);
  padding: 9px 12px; border: 1px solid var(--edge); border-radius: 8px; background: rgba(13,20,24,.85);
  display: inline-flex; gap: 10px; align-items: center; will-change: transform;
}
.ichip .src { color: var(--cyan); }
.ichip .v { display: none; font-weight: 700; }
.ichip.open { border-color: rgba(108,255,176,.5); }
.ichip.open .v { display: inline; color: var(--biolume); }
.ichip.narrow { border-color: rgba(255,210,90,.6); }
.ichip.narrow .v { display: inline; color: var(--narrow); }
.ichip.closed { border-color: var(--coral); box-shadow: 0 0 24px rgba(255,90,95,.35); }
.ichip.closed .v { display: inline; color: var(--coral); }

/* story */
.story { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: center; }
.story-copy p { max-width: 52ch; }
.tank {
  position: relative; aspect-ratio: 1 / .82; border: 1px solid var(--edge); border-radius: 28px;
  background: radial-gradient(120% 90% at 50% 0%, rgba(61,224,255,.08), transparent 60%), rgba(13,20,24,.55);
  padding: 32px; display: flex; flex-direction: column; justify-content: center; overflow: hidden;
}
.tank-water { position: absolute; inset: 0; pointer-events: none; }
.tank-water i {
  position: absolute; left: -10%; height: 1px; width: 30%;
  background: linear-gradient(90deg, transparent, rgba(61,224,255,.6), transparent);
  animation: current 4.5s linear infinite;
}
.tank-water i:nth-child(1) { top: 14%; animation-delay: -1s; }
.tank-water i:nth-child(2) { top: 30%; animation-delay: -3s; animation-duration: 5.5s; }
.tank-water i:nth-child(3) { top: 46%; animation-delay: -2s; }
.tank-water i:nth-child(4) { top: 62%; animation-delay: -4s; animation-duration: 6s; }
.tank-water i:nth-child(5) { top: 78%; animation-delay: -.5s; }
.tank-water i:nth-child(6) { top: 90%; animation-delay: -2.5s; animation-duration: 5s; }
.tank.toxic .tank-water i { background: linear-gradient(90deg, transparent, rgba(255,90,95,.7), transparent); }
.tank.stopped .tank-water i { animation-play-state: paused; opacity: .15; }
@keyframes current { to { transform: translateX(450%); } }
.tank-grid { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(16px, 3vw, 36px) clamp(10px, 2vw, 24px); }
.tank-grid svg { width: 100%; height: auto; filter: drop-shadow(0 0 10px rgba(108,255,176,.4)); transition: filter .3s; }
.tank-grid svg.shut { filter: drop-shadow(0 0 12px rgba(255,90,95,.7)); }
.tank-readout { position: relative; display: flex; justify-content: space-between; gap: 12px; margin-top: 32px; font-size: 13px; color: var(--glow); }
.tank-readout b { color: var(--coral); }
.supply { display: inline-flex; align-items: center; gap: 8px; }
.replay { position: absolute; right: 16px; top: 14px; background: none; border: 0; color: var(--muted); font-size: 12px; cursor: pointer; padding: 8px; }
.replay:hover { color: var(--glow); }

/* quorum */
.quorum { padding-top: 0; margin-top: clamp(40px, 6vw, 80px); }
.quorum-inner { min-height: 100svh; display: flex; flex-direction: column; justify-content: center; padding-top: 84px; padding-bottom: 24px; }
.quorum .h2 { font-size: clamp(30px, 3.6vw, 52px); }
.q-head { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; align-items: end; margin-bottom: 28px; }
.q-head .kicker { margin-bottom: 14px; }
.q-head .kicker { grid-column: 1 / -1; }
.q-head .h2 { margin: 0; }
.q-head .muted { margin: 0; max-width: 44ch; }
.q-stage { display: grid; grid-template-columns: 1.1fr auto 1fr; gap: clamp(20px, 3vw, 48px); align-items: center; }
.q-input { border: 1px solid var(--edge); border-radius: 20px; padding: 24px; background: rgba(13,20,24,.7); }
.q-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 12px; color: var(--muted); margin-bottom: 16px; }
.q-meta span:first-child { color: var(--cyan); }
.q-meta .act { color: var(--narrow); }
.q-text { font-size: clamp(17px, 1.5vw, 20px); color: var(--glow); line-height: 1.55; margin: 0; }
.morse { font-family: var(--mono); font-size: .9em; color: var(--body); border-radius: 4px; padding: 1px 2px; -webkit-box-decoration-break: clone; box-decoration-break: clone; transition: background .3s, color .3s; }
.morse.found { background: rgba(255,90,95,.16); color: var(--coral); box-shadow: 0 0 0 1px rgba(255,90,95,.5); }
.q-decoded { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--edge); font-size: 14px; color: var(--coral); display: flex; gap: 14px; align-items: baseline; min-height: 40px; }
.q-tag { color: var(--muted); font-size: 12px; }
.q-center { display: flex; flex-direction: column; align-items: center; gap: 24px; }
#qMark { filter: drop-shadow(0 0 16px rgba(108,255,176,.5)); transition: filter .4s; }
#qMark.shut { filter: drop-shadow(0 0 22px rgba(255,90,95,.85)); }
.q-meter { width: 180px; font-size: 12px; color: var(--muted); text-align: center; }
.q-num { font-size: 15px; color: var(--glow); margin-bottom: 10px; }
.q-num b { font: 700 48px/1 var(--sans); letter-spacing: -.04em; color: var(--glow); }
.q-bar { position: relative; height: 4px; border-radius: 4px; background: var(--edge); }
.q-bar i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; border-radius: 4px; background: var(--coral); box-shadow: 0 0 12px var(--coral); }
.q-thr { position: absolute; left: 33.33%; top: -6px; bottom: -6px; width: 2px; background: var(--glow); }
.q-thr-label { margin-top: 12px; }
.q-detectors { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.q-detectors li {
  display: grid; grid-template-columns: 14px auto 1fr; align-items: center; gap: 2px 14px;
  padding: 8px 14px; border-radius: 12px; border: 1px solid transparent; opacity: .35;
  transition: opacity .3s, border-color .3s, background .3s;
}
.q-detectors b { color: var(--glow); font-weight: 500; font-size: 16px; }
.d-note { grid-column: 2 / -1; font-size: 13px; color: var(--muted); }
.lamp { width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--muted); grid-row: 1; }
.q-detectors li.lit { opacity: 1; }
.q-detectors li.lit[data-v="closed"] { border-color: rgba(255,90,95,.35); background: rgba(255,90,95,.05); }
.q-detectors li.lit[data-v="closed"] .lamp { background: var(--coral); border-color: var(--coral); box-shadow: 0 0 12px var(--coral); }
.q-detectors li.lit[data-v="open"] { border-color: rgba(108,255,176,.3); }
.q-detectors li.lit[data-v="open"] .lamp { background: var(--biolume); border-color: var(--biolume); box-shadow: 0 0 12px var(--biolume); }
.q-verdict { display: flex; align-items: center; gap: 24px; margin-top: 24px; opacity: 0; min-height: 60px; }
.q-verdict p { margin: 0; max-width: 70ch; color: var(--glow); }

/* states */
.states { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; padding-top: clamp(80px, 10vw, 140px); }
.state { padding: 36px 28px; border-top: 1px solid var(--edge); }
.state h3 { display: flex; align-items: center; gap: 12px; margin: 24px 0 8px; font-size: 24px; }
.state p { color: var(--body); margin: 0; max-width: 28ch; }
.state[data-state="open"] svg { filter: drop-shadow(0 0 10px rgba(108,255,176,.5)); }
.state[data-state="narrow"] svg { filter: drop-shadow(0 0 10px rgba(255,210,90,.5)); }
.state[data-state="closed"] svg { filter: drop-shadow(0 0 12px rgba(255,90,95,.7)); }

/* sources */
.src-table { border-top: 1px solid var(--edge); }
.src-row {
  display: grid; grid-template-columns: 200px 1.1fr 1fr; gap: 12px 40px;
  padding: 22px 0; border-bottom: 1px solid var(--edge); position: relative;
  transition: background .3s;
}
.src-row:not(.src-headrow)::before {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 0;
  background: var(--biolume); box-shadow: 0 0 10px var(--biolume); transition: width .6s var(--ease);
}
.src-row:not(.src-headrow):hover::before { width: 100%; }
.src-headrow { font-size: 12px; color: var(--muted); padding: 14px 0; }
.src-key { color: var(--cyan); font-size: 15px; }
.src-row span:nth-child(2) { color: var(--glow); }
.decoders { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 20px; margin-top: 36px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.chips li { font-size: 13px; color: var(--biolume); border: 1px solid rgba(108,255,176,.3); border-radius: 999px; padding: 6px 12px; }

/* playground */
.console { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--edge); border-radius: 24px; overflow: hidden; background: rgba(13,20,24,.78); backdrop-filter: blur(8px); }
.console-in { padding: clamp(20px, 3vw, 36px); border-right: 1px solid var(--edge); display: flex; flex-direction: column; gap: 14px; }
.console-out { padding: clamp(20px, 3vw, 36px); display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.chip-btn {
  background: transparent; color: var(--body); border: 1px solid var(--edge); border-radius: 999px;
  padding: 8px 14px; font-size: 13px; cursor: pointer; min-height: 40px;
  transition: border-color .2s, color .2s;
}
.chip-btn:hover, .chip-btn[aria-pressed="true"] { border-color: var(--cyan); color: var(--cyan); }
.field-label { font-size: 12px; color: var(--muted); }
textarea {
  width: 100%; resize: vertical; min-height: 150px; background: var(--abyss); color: var(--glow);
  border: 1px solid var(--edge); border-radius: 14px; padding: 16px; font-size: 14px; line-height: 1.6;
}
textarea:focus { outline: none; border-color: var(--biolume); box-shadow: 0 0 0 3px rgba(108,255,176,.15); }
.console-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 6px; }
.console-row .btn { margin-left: auto; }
.seg { display: inline-flex; border: 1px solid var(--edge); border-radius: 999px; padding: 3px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: inline-block; padding: 8px 14px; border-radius: 999px; font: 400 13px/1 var(--mono); cursor: pointer; color: var(--body); }
.seg input:checked + span { background: var(--glow); color: var(--abyss); }
.seg input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.out-top { display: flex; align-items: center; gap: 22px; }
#tryMark { flex: none; transition: filter .3s; }
.out-state { font-size: 22px; color: var(--muted); }
.out-state.s-open { color: var(--biolume); }
.out-state.s-narrow { color: var(--narrow); }
.out-state.s-closed { color: var(--coral); }
.out-votes { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.out-votes span { width: 26px; height: 6px; border-radius: 3px; background: var(--edge); }
.out-votes span.c { background: var(--coral); box-shadow: 0 0 8px var(--coral); }
.out-votes span.o { background: var(--biolume); opacity: .7; }

.code {
  margin: 0; font: 400 13px/1.7 var(--mono); color: var(--glow); background: var(--abyss);
  border: 1px solid var(--edge); border-radius: 14px; padding: 18px 20px; overflow: auto; white-space: pre; flex: 1; min-height: 240px;
}
.c-mut { color: var(--muted); }
.c-str { color: var(--biolume); }
.c-key { color: var(--cyan); }
.c-fn { color: var(--narrow); }
.c-red { color: var(--coral); }

/* api */
.api { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 5vw, 80px); align-items: center; }
.api-copy p:last-child { max-width: 48ch; }
.code-req { min-height: 0; font-size: 14px; }

/* receipts */
.flow { position: relative; height: 180px; margin: 20px 0 64px; }
.flow-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.flow-svg path { stroke: var(--edge); stroke-width: 2; fill: none; stroke-dasharray: 4 8; vector-effect: non-scaling-stroke; }
.flow-node {
  position: absolute; left: var(--x); top: 50%; transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
  background: var(--abyss); padding: 14px 16px; border: 1px solid var(--edge); border-radius: 16px; min-width: 120px; z-index: 1;
}
.flow-node span { font-size: 12px; color: var(--cyan); white-space: nowrap; }
.flow-node b { color: var(--glow); font-weight: 500; font-size: 15px; white-space: nowrap; }
.flow-node.n-first { transform: translate(0, -50%); left: 0; }
.flow-node.n-last { transform: translate(-100%, -50%); left: 100%; }
.node-bv { border-color: rgba(108,255,176,.4); }
#walletState.ok { color: var(--biolume); }
#walletState.no { color: var(--coral); }
.packet { position: absolute; top: 50%; left: 0; width: 12px; height: 12px; margin: -6px 0 0 -6px; border-radius: 50%; background: var(--biolume); box-shadow: 0 0 18px 4px rgba(108,255,176,.7); z-index: 2; opacity: 0; }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 56px); }
.facts h3 { margin-bottom: 12px; }
.facts p { margin: 0; }

/* roadmap */
.phases { list-style: none; margin: 0; padding: 0 0 0 40px; position: relative; display: grid; gap: 0; }
.phases::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--edge); }
.phases .depth { position: absolute; left: 7px; top: 8px; width: 2px; height: 0; background: linear-gradient(var(--biolume), var(--cyan)); box-shadow: 0 0 14px var(--biolume); }
.phase { position: relative; display: grid; grid-template-columns: 180px 1fr; gap: 6px 40px; padding: 28px 0; border-bottom: 1px solid var(--edge); }
.phase::before { content: ""; position: absolute; left: -40px; top: 36px; width: 16px; height: 16px; border-radius: 50%; background: var(--abyss); border: 2px solid var(--edge); transition: border-color .3s, box-shadow .3s; }
.phase.reached::before { border-color: var(--biolume); box-shadow: 0 0 12px var(--biolume); }
.ph-when { font-size: 13px; color: var(--muted); padding-top: 6px; grid-row: span 3; }
.phase h3 { font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -.02em; display: flex; align-items: baseline; gap: 14px; }
.ph-n { font-size: 13px; color: var(--biolume); font-weight: 400; }
.phase p { margin: 0; max-width: 62ch; }
.ph-exit { font-size: 12px; color: var(--narrow); }

/* final */
.final { text-align: center; padding-bottom: 120px; max-width: 900px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
#finalMark { width: 120px; margin: 0 auto 40px; display: block; filter: drop-shadow(0 0 18px rgba(108,255,176,.6)); }
.final .lead { margin: 28px auto 0; max-width: 44ch; }
.beta { display: flex; gap: 10px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }
.beta input {
  min-height: 48px; width: min(100%, 320px); background: rgba(13,20,24,.8); color: var(--glow);
  border: 1px solid var(--edge); border-radius: 999px; padding: 0 22px; font-size: 14px;
}
.beta input:focus { outline: none; border-color: var(--biolume); box-shadow: 0 0 0 3px rgba(108,255,176,.15); }
.form-msg { min-height: 24px; margin-top: 16px; font-size: 13px; color: var(--biolume); }
.form-msg.err { color: var(--coral); }

.foot { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; padding-top: 32px; padding-bottom: 40px; border-top: 1px solid var(--edge); }
.foot p { margin: 0; font-size: 14px; }

/* responsive */
@media (max-width: 960px) {
  .nav nav { display: none; }
  .nav-cta { margin-left: auto; }
  .hero { grid-template-columns: 1fr; grid-template-rows: auto; padding-top: 104px; text-align: left; }
  .hero-mark { grid-column: 1; grid-row: 1; width: min(40vw, 160px); justify-self: start; margin-bottom: 8px; }
  .hero-state { display: none; }
  .hero-state { left: 0; transform: none; bottom: -30px; }
  .hero-copy { grid-row: 2; margin-top: 24px; }
  .intake { grid-template-columns: 1fr; gap: 10px; margin-top: 32px; }
  .story, .api, .console { grid-template-columns: 1fr; }
  .console-in { border-right: 0; border-bottom: 1px solid var(--edge); }
  .q-head { grid-template-columns: 1fr; gap: 12px; margin-bottom: 24px; }
  .q-stage { grid-template-columns: 1fr; gap: 20px; }
  .q-center { flex-direction: row; justify-content: flex-start; gap: 24px; }
  .q-center .mark-lg { width: 110px; }
  .q-meter { text-align: left; }
  .q-detectors { grid-template-columns: 1fr 1fr; }
  .q-detectors li { padding: 8px 10px; }
  .d-note { display: none; }
  .q-verdict { flex-direction: column; align-items: flex-start; gap: 12px; margin-top: 20px; }
  .q-verdict p { font-size: 15px; }
  .quorum-inner { padding-top: 68px; }
  .q-head .muted { display: none; }
  .q-center .mark-lg { width: 84px; }
  .q-num b { font-size: 36px; }
  .states, .facts { grid-template-columns: 1fr; }
  .src-row { grid-template-columns: 1fr; gap: 6px; }
  .src-headrow { display: none; }
  .phase { grid-template-columns: 1fr; }
  .ph-when { grid-row: auto; padding: 0; }
  .flow { height: 440px; }
  .flow-svg { display: none; }
  .flow::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; border-left: 2px dashed var(--edge); }
  .flow-node, .flow-node.n-first, .flow-node.n-last { left: 50%; top: calc(var(--i) * 25% + 12%); transform: translate(-50%, -50%); }
  .flow-node:nth-child(2) { --i: 0; } .flow-node:nth-child(3) { --i: 1; }
  .flow-node:nth-child(4) { --i: 2; } .flow-node:nth-child(5) { --i: 3; }
  .packet { left: 50%; }
  .console-row .btn { margin-left: 0; width: 100%; }
}
@media (max-width: 520px) {
  .q-detectors b { font-size: 14px; }
  .q-text { font-size: 16px; }
  .q-input { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}