/* Zecho — midnight plum, coral and lilac. Bricolage Grotesque · DM Mono. */
:root {
  --bg: #0d0a12; --bg2: #140f1b; --ink: #f6efe6; --muted: #b5abba; --faint: #7d7383;
  --line: rgba(246, 239, 230, .09); --line2: rgba(246, 239, 230, .17);
  --coral: #ff7a59; --coral-hi: #ffa489; --lilac: #b9a6ff; --ok: #9ff0c8; --danger: #ff8d7a;
  --sans: 'Bricolage Grotesque', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'DM Mono', ui-monospace, Menlo, monospace;
  color-scheme: dark;
}
[hidden] { display: none !important; }
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--sans); overflow-x: clip; -webkit-font-smoothing: antialiased; }
a { color: var(--coral-hi); text-underline-offset: 3px; }
code { font-family: var(--mono); font-size: .88em; }
h1, h2 { font-family: var(--sans); font-weight: 700; letter-spacing: -.035em; line-height: .98; margin: 0 0 .35em; font-variation-settings: 'opsz' 96; }
h1 { font-size: clamp(3rem, 8vw, 6.4rem); }
h2 { font-size: clamp(2rem, 4.4vw, 3.4rem); }
h3 { font: 650 1.05rem/1.3 var(--sans); margin: 0 0 .35em; }
p { margin: 0 0 1em; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 50; background: var(--ink); color: var(--bg); padding: 6px 10px; border-radius: 8px; }
:focus-visible { outline: 2px solid var(--lilac); outline-offset: 3px; }

/* ---------------------------------------------------------------- top */
.top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 12px clamp(16px, 3vw, 36px); background: rgba(13, 10, 18, .72); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.logo { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font: 750 1.35rem/1 var(--sans); letter-spacing: -.04em; }
.logo svg { width: 26px; height: 26px; color: var(--coral); }
.nav { display: flex; gap: 2px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a { color: var(--muted); text-decoration: none; font-size: .9rem; padding: 6px 12px; border-radius: 99px; white-space: nowrap; }
.nav a:hover { color: var(--ink); background: rgba(255, 255, 255, .05); }
.brandbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 8px clamp(16px, 3vw, 36px); background: var(--bg2); border-bottom: 1px solid var(--line); font-size: .85rem; }
.brandbar code { overflow-wrap: anywhere; color: var(--lilac); }
.ca-tag { font: 500 .7rem var(--mono); color: var(--muted); letter-spacing: .1em; }

/* ---------------------------------------------------------------- buttons + inputs */
.pill-btn { appearance: none; border: 1px solid var(--line2); background: rgba(255, 255, 255, .04); color: var(--ink); font: 600 .9rem/1 var(--sans); padding: 10px 16px; border-radius: 99px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: border-color .2s, background .2s; white-space: nowrap; }
.pill-btn:hover { border-color: var(--lilac); }
.pill-btn.ghost { background: transparent; }
.pill-btn.tiny { padding: 4px 10px; font-size: .75rem; }
.pill-btn.danger { border-color: rgba(255, 141, 122, .5); color: var(--danger); }
.pill-btn:disabled { opacity: .45; cursor: not-allowed; }
.big-btn { appearance: none; border: 0; width: 100%; padding: 16px 22px; border-radius: 16px; cursor: pointer; font: 700 1.05rem/1 var(--sans); color: #1d0c07; background: linear-gradient(120deg, var(--coral), #ff9c7e 50%, var(--lilac)); box-shadow: 0 10px 40px rgba(255, 122, 89, .25); transition: transform .1s, filter .2s, opacity .2s; }
.big-btn:hover { filter: brightness(1.06); }
.big-btn:active { transform: translateY(1px); }
.big-btn:disabled { opacity: .45; cursor: not-allowed; }
.big-btn.slim { width: auto; padding: 12px 20px; font-size: .95rem; border-radius: 99px; }
input[type=password], input[readonly], select, textarea { width: 100%; background: rgba(0, 0, 0, .35); border: 1px solid var(--line2); color: var(--ink); border-radius: 12px; padding: 11px 13px; font: 400 .95rem/1.4 var(--sans); }
input[readonly] { font: .8rem/1.4 var(--mono); color: var(--lilac); }
input:disabled, select:disabled { opacity: .5; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--lilac); box-shadow: 0 0 0 3px rgba(185, 166, 255, .15); }
.hint { color: var(--muted); font-size: .88rem; }
.fine { color: var(--faint); font-size: .8rem; line-height: 1.5; margin: 12px 0 0; }
.center { text-align: center; }
.status { min-height: 1.4em; margin: 10px 0 0; font-size: .9rem; color: var(--muted); }
.status.err { color: var(--danger); }
.status.ok { color: var(--ok); }
.tag { font: 500 .62rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 3px 6px; border-radius: 99px; background: rgba(185, 166, 255, .16); color: var(--lilac); vertical-align: middle; }

/* ---------------------------------------------------------------- hero */
.hero { position: relative; min-height: calc(100svh - 58px); overflow: clip; isolation: isolate; padding: clamp(28px, 5vh, 56px) 16px 84px; background: radial-gradient(ellipse 80% 60% at 50% 55%, #1e1328 0, var(--bg) 70%); }
#echo { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }
.hero-in { display: flex; flex-direction: column; align-items: center; gap: 8px; max-width: 980px; margin: 0 auto; }
.intro { text-align: center; max-width: 720px; }
.eyebrow { font: 500 .78rem/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--coral); margin: 0 0 16px; }
.lead { color: #ddd2de; font-size: clamp(1rem, 1.6vw, 1.15rem); max-width: 60ch; margin: 0 auto; }
.stage { position: relative; width: min(78vw, 44vh, 380px); aspect-ratio: 1; display: grid; place-items: center; margin: clamp(12px, 3vh, 28px) 0 4px; }
.rec { width: 32%; aspect-ratio: 1; border-radius: 50%; border: 0; cursor: pointer; display: grid; place-items: center; background: radial-gradient(circle at 35% 30%, #ffb59e, var(--coral) 55%, #e2553a); box-shadow: 0 0 0 10px rgba(255, 122, 89, .12), 0 0 60px rgba(255, 122, 89, .45); transition: transform .15s, box-shadow .3s; }
.rec:hover { transform: scale(1.04); }
.rec:active { transform: scale(.97); }
.rec-core { width: 34%; aspect-ratio: 1; border-radius: 50%; background: #fff6f1; transition: border-radius .25s, width .25s; }
.rec.recording .rec-core { border-radius: 18%; width: 30%; }
.rec.lilac { background: radial-gradient(circle at 35% 30%, #e2d9ff, var(--lilac) 55%, #8f78f0); box-shadow: 0 0 0 10px rgba(185, 166, 255, .12), 0 0 60px rgba(185, 166, 255, .45); }
.rec.tri .rec-core { width: 0; height: 0; aspect-ratio: auto; border-radius: 0; background: none; border-style: solid; border-width: 14px 0 14px 23px; border-color: transparent transparent transparent #fff; margin-left: 6px; }
.rec.bars .rec-core { width: 28%; border-radius: 2px; background: linear-gradient(90deg, #fff 0 34%, transparent 34% 66%, #fff 66%); }
.rec.dim { background: rgba(255, 255, 255, .06); box-shadow: none; cursor: default; }
.rec.dim:hover { transform: none; }
.rec.dim .rec-core { width: 12%; background: rgba(246, 239, 230, .5); }
.rec:disabled { cursor: default; }
.clock { position: absolute; left: 0; right: 0; top: 70%; text-align: center; font: 500 1rem/1 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; pointer-events: none; }
.deck { width: min(560px, 100%); }
body.engaged .intro .lead { display: none; }
body.engaged .intro h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
.card { background: rgba(20, 15, 27, .78); border: 1px solid var(--line); border-radius: 22px; padding: 20px; backdrop-filter: blur(10px); box-shadow: 0 30px 80px rgba(0, 0, 0, .4); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.row.gap { margin-top: 14px; }
.center-row { justify-content: center; }
.meta { font: .85rem/1.4 var(--mono); color: var(--muted); }
.opts { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; margin: 16px 0; }
.opt { display: block; }
.opt-label { display: block; font: 500 .72rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 7px; }
.opt-label.gap { margin-top: 16px; }
.copyrow { display: flex; gap: 8px; }
.copyrow input { flex: 1; min-width: 0; }
.ok-line { font-weight: 600; color: var(--ok); }
.live-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--coral); margin-right: 6px; vertical-align: middle; animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .3; } }
.cue { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); color: var(--muted); text-decoration: none; font-size: .85rem; padding: 6px 14px; border: 1px solid var(--line); border-radius: 99px; background: rgba(13, 10, 18, .6); }
.cue span { display: inline-block; animation: nudge 2.4s infinite; }
@keyframes nudge { 50% { transform: translateY(3px); } }
.reports { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.reports li { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-size: .85rem; overflow-wrap: anywhere; display: grid; gap: 6px; }

/* ---------------------------------------------------------------- content */
.sec { padding: clamp(64px, 9vw, 120px) clamp(16px, 4vw, 48px); }
.sec.tint { background: linear-gradient(180deg, var(--bg2), var(--bg)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.wrap { max-width: 1120px; margin: 0 auto; }
.wrap.narrow { max-width: 760px; }
.wrap.split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.wrap.split + .wrap { margin-top: 40px; }
.kicker { font: 500 .76rem/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--lilac); margin-bottom: 18px; }
.sec p { max-width: 66ch; color: #ddd2de; }
.intro-p { font-size: 1.05rem; }
.dots { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.dots li { position: relative; padding-left: 26px; color: #ddd2de; }
.dots li::before { content: ''; position: absolute; left: 2px; top: .5em; width: 10px; height: 10px; border-radius: 50%; background: radial-gradient(circle, var(--coral) 35%, transparent 40%); box-shadow: 0 0 0 4px rgba(255, 122, 89, .14), 0 0 0 9px rgba(255, 122, 89, .05); }
.legend { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 30px; }
.lg { display: flex; gap: 14px; padding: 18px; border-radius: 18px; background: rgba(255, 255, 255, .025); border: 1px solid var(--line); }
.lg p { font-size: .92rem; color: var(--muted); margin: 0; }
.sw { width: 46px; height: 46px; flex: none; border-radius: 50%; }
.sw-ripple { box-shadow: inset 0 0 0 2px rgba(255, 122, 89, .6), 0 0 0 6px rgba(255, 122, 89, .14), 0 0 0 12px rgba(255, 122, 89, .06); width: 30px; height: 30px; margin: 8px; }
.sw-bend { background: radial-gradient(circle, var(--bg) 52%, transparent 53%), conic-gradient(var(--coral), var(--lilac), var(--coral), var(--lilac), var(--coral)); clip-path: polygon(50% 0, 63% 14%, 84% 10%, 88% 32%, 100% 50%, 88% 66%, 86% 88%, 64% 86%, 50% 100%, 36% 87%, 14% 90%, 12% 66%, 0 50%, 12% 34%, 16% 12%, 36% 14%); }
.sw-arc { background: conic-gradient(var(--coral) 0 200deg, rgba(255, 255, 255, .08) 200deg); -webkit-mask: radial-gradient(circle, transparent 17px, #000 18px); mask: radial-gradient(circle, transparent 17px, #000 18px); }
.sw-bars { background: radial-gradient(circle, var(--bg) 42%, transparent 43%), repeating-conic-gradient(var(--lilac) 0 6deg, transparent 6deg 15deg); }
.sw-dust { background: radial-gradient(circle at 30% 40%, var(--coral) 2px, transparent 3px), radial-gradient(circle at 60% 25%, var(--lilac) 2px, transparent 3px), radial-gradient(circle at 75% 60%, var(--coral) 1.5px, transparent 2.5px), radial-gradient(circle at 40% 75%, var(--lilac) 1.5px, transparent 2.5px), radial-gradient(circle at 20% 65%, var(--coral) 1px, transparent 2px); border: 1px dashed var(--line2); }
.sw-point { background: radial-gradient(circle, #fff 0 3px, rgba(255, 122, 89, .6) 5px, transparent 22px); }
.steps { list-style: none; padding: 0; margin: 34px 0 18px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.steps li { padding: 20px 16px; border-radius: 18px; border: 1px solid var(--line); background: rgba(255, 255, 255, .02); }
.steps p { font-size: .88rem; color: var(--muted); margin: 0; }
.num { display: block; font: 500 .8rem var(--mono); color: var(--coral); margin-bottom: 12px; }
.wire { width: 100%; max-width: 900px; height: auto; display: block; margin: 8px 0 24px; }
.wire .wb { fill: rgba(255, 255, 255, .025); stroke: rgba(246, 239, 230, .18); }
.wire .wt { fill: var(--ink); font: 650 17px var(--sans); text-anchor: middle; }
.wire .ws { fill: var(--muted); font: 13px var(--mono); text-anchor: middle; }
.wire .wp { stroke: url(#wg); stroke-width: 2; stroke-dasharray: 4 6; fill: none; }
.wire .wd { fill: var(--coral-hi); }
.notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.notes p { font-size: .92rem; color: var(--muted); }
.notes strong { color: var(--ink); }
.cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 28px; }
.col { padding: 24px; border-radius: 20px; border: 1px solid var(--line); }
.col.can { background: rgba(255, 122, 89, .05); }
.col.cant { background: rgba(185, 166, 255, .06); }
.col h3 { font-size: 1.35rem; letter-spacing: -.02em; margin-bottom: 14px; }
.col ul, .caveat ul { margin: 0; padding-left: 18px; display: grid; gap: 10px; color: #ddd2de; font-size: .95rem; }
.caveat { margin-top: 24px; padding: 22px 24px; border-radius: 20px; border: 1px dashed var(--line2); }
.caveat h3 { font-size: 1.3rem; letter-spacing: -.02em; margin-bottom: 12px; }
.built { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 30px; }
.built > div { padding: 22px; border-radius: 18px; background: linear-gradient(160deg, rgba(185, 166, 255, .06), rgba(255, 122, 89, .03)); border: 1px solid var(--line); }
.built p { font-size: .9rem; color: var(--muted); margin: 0; }
.plans { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 30px; }
.plan { padding: 26px; border-radius: 24px; border: 1px solid var(--line); background: rgba(255, 255, 255, .025); }
.plan.vault { border-color: rgba(185, 166, 255, .45); background: linear-gradient(150deg, rgba(185, 166, 255, .13), rgba(255, 122, 89, .06)); }
.plan h3 { font-size: 1.5rem; letter-spacing: -.02em; margin-bottom: 16px; }
.plan ul { margin: 0; padding-left: 18px; display: grid; gap: 9px; color: #ddd2de; }
.price { margin: 18px 0 0; color: var(--lilac); font-size: .92rem; }
.must { border-left: 3px solid var(--coral); padding: 4px 0 4px 14px; font-weight: 650; color: var(--ink) !important; }
.soon { color: var(--lilac) !important; }
.burn { padding: 26px; border-radius: 24px; border: 1px solid rgba(255, 122, 89, .35); background: radial-gradient(circle at 100% 0, rgba(255, 122, 89, .14), transparent 60%), var(--bg2); }
.burn h3 { font-size: 1.5rem; letter-spacing: -.02em; }
.burn-amt { font-size: 1.05rem; }
.ledger { margin-top: 40px; padding: 24px; border-radius: 24px; border: 1px solid var(--line); }
.ledger h3 { font-size: 1.4rem; letter-spacing: -.02em; }
.ledger-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 16px 0; }
.ledger-grid > div { background: rgba(255, 255, 255, .03); border-radius: 14px; padding: 12px 14px; }
.k { display: block; font-size: .74rem; color: var(--muted); }
.v { display: block; font: 500 1.15rem/1.3 var(--mono); color: var(--coral-hi); overflow-wrap: anywhere; }
.ledger-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; font: .82rem var(--mono); }
.ledger-list li { display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 8px 10px; border-radius: 10px; background: rgba(255, 255, 255, .025); }
.terms { margin-top: 18px; font-size: .88rem; }
.h3gap { margin-top: 2.6em; font-size: 1.2rem; }
details { border-top: 1px solid var(--line); padding: 16px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font: 650 1.12rem/1.35 var(--sans); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--coral); font-family: var(--mono); }
details[open] summary::after { content: '–'; }
details p { margin: 10px 0 0; color: var(--muted); }
.foot { padding: 40px clamp(16px, 4vw, 48px) 48px; border-top: 1px solid var(--line); font-size: .85rem; color: var(--muted); }
.foot-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 24px; }
.foot-name { font: 750 1.4rem/1 var(--sans); letter-spacing: -.04em; color: var(--ink); margin-bottom: 6px; }
.foot-meta p { margin: 0 0 6px; overflow-wrap: anywhere; }
.foot code { color: var(--lilac); }

.modal { position: fixed; inset: 0; z-index: 60; background: rgba(8, 6, 11, .72); backdrop-filter: blur(6px); display: grid; place-items: center; padding: 16px; }
.modal-card { width: min(420px, 100%); background: var(--bg2); border: 1px solid var(--line2); border-radius: 22px; padding: 22px; display: grid; gap: 12px; }
.modal-card h3 { font-size: 1.35rem; letter-spacing: -.02em; margin: 0; }
.wlist { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.wlist button { width: 100%; display: flex; align-items: center; gap: 12px; background: rgba(255, 255, 255, .04); border: 1px solid var(--line); color: var(--ink); border-radius: 14px; padding: 12px; font: 600 .95rem var(--sans); cursor: pointer; }
.wlist button:hover { border-color: var(--lilac); }
.wlist img { width: 26px; height: 26px; border-radius: 6px; }

@media (max-width: 980px) {
  .legend, .built { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .notes { grid-template-columns: minmax(0, 1fr); }
  .ledger-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  body { font-size: 15px; }
  .top { flex-wrap: wrap; gap: 8px 10px; padding-bottom: 6px; }
  .logo { margin-right: auto; }
  .nav { order: 3; width: 100%; margin: 0 -8px; }
  .nav a { padding: 5px 9px; font-size: .82rem; }
  .wrap.split, .cols, .plans, .legend, .built, .steps, .foot-grid, .opts { grid-template-columns: minmax(0, 1fr); }
  .stage { width: min(84vw, 340px); }
  .wire { display: none; }
  .card { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cue span, .live-dot { animation: none; }
  .wire .wd { display: none; }
}