/* RGB Engine: a dark room lit by the PC. The only colour
   on the page is emitted light from a real palette, and it spills: --lit is
   the live average of the 3D scene, set from hero3d.js. */

@font-face {
  font-family: "Archivo";
  src: url("fonts/archivo-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}

:root {
  /* chart ink ramp: the only tonal tokens */
  --ink-0: #050608;
  --ink-1: #0c0e13;
  --ink-2: #161a22;
  --ink-3: #272c38;
  --ink-4: #8b91a1;
  --paper: #eef0f5;
  --paper-dim: #b8bdca;
  --lit: 150 70 255;

  --hair: 1px solid var(--ink-3);
  --font: "Archivo", system-ui, sans-serif;
  --gutter: clamp(16px, 3.4vw, 48px);
  --nav-h: 56px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ink-0);
  color: var(--paper);
  font: 400 17px/1.55 var(--font);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  caret-color: var(--paper);
  scrollbar-color: var(--ink-3) var(--ink-0);
}

::selection { background: var(--paper); color: var(--ink-0); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink-0); }
::-webkit-scrollbar-thumb { background: var(--ink-3); }

a { color: inherit; text-underline-offset: 0.25em; text-decoration-thickness: 1px; }
:focus-visible { outline: 1px solid var(--paper); outline-offset: 3px; }

h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }

/* display voice: wide and heavy. Condensed is kept for chart lettering. */
h1, h2 { font-weight: 800; font-stretch: 118%; letter-spacing: -0.025em; line-height: 1.02; }
h3 { font-weight: 700; font-stretch: 108%; letter-spacing: -0.01em; }

.label {
  font-size: 12px; font-weight: 650; font-stretch: 75%; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-4);
}

/* --- buttons ---------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 48px; padding: 0 22px;
  border: 1px solid var(--paper); border-radius: 0;
  background: var(--paper); color: var(--ink-0);
  font: 650 15px/1 var(--font); font-stretch: 100%; letter-spacing: 0.01em;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background 0.2s ease-out, color 0.2s ease-out, transform 0.1s ease-out;
}
.btn:hover { background: transparent; color: var(--paper); border-color: rgb(var(--lit)); }
.btn:active { transform: translateY(1px); }
.btn-small { height: 36px; padding: 0 14px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--paper); border-color: var(--ink-3); }
.btn-ghost:hover { border-color: var(--paper); }
/* a pressed control takes the light's colour at its edge */
.btn-ghost[aria-pressed="true"], .key[aria-pressed="true"] {
  color: var(--paper); border-color: rgb(var(--lit));
  background: rgb(var(--lit) / 0.14);
}

/* --- nav -------------------------------------------------------------- */

.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 32px;
  height: var(--nav-h); padding: 0 var(--gutter);
  background: rgb(5 6 8 / 0.9);
  border-bottom: var(--hair);
}
.wordmark {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; font-stretch: 118%; font-size: 17px; letter-spacing: -0.02em;
  text-decoration: none; white-space: nowrap;
}
.wordmark img { display: block; }
.nav nav { display: flex; gap: 26px; margin-left: auto; }
.nav nav a { font-size: 14px; text-decoration: none; color: var(--paper-dim); }
.nav nav a:hover { color: var(--paper); text-decoration: underline; }

/* form labels */
.waitlist label {
  padding: 0; margin-bottom: 6px;
  font-size: 12px; font-weight: 650; font-stretch: 75%; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-4);
}

/* --- waitlist form ----------------------------------------------------- */

.waitlist { margin-top: 22px; display: grid; gap: 8px; }
.waitlist label { margin: 0; }
.field-row { display: flex; }
.waitlist input {
  flex: 1; min-width: 0; height: 48px; padding: 0 14px;
  border: 1px solid var(--ink-4); border-right: 0; border-radius: 0;
  background: var(--ink-1); color: var(--paper);
  font: 400 16px var(--font);
}
.waitlist input::placeholder { color: var(--ink-4); opacity: 1; }
.waitlist input:focus-visible { outline: 1px solid rgb(var(--lit)); outline-offset: 0; border-color: rgb(var(--lit)); }
.waitlist[data-state="error"] input { border-color: #ff9d8a; }
.help { font-size: 13px; color: var(--ink-4); }
.waitlist[data-state="error"] .help { color: #ffb4a6; }
.waitlist[data-state="done"] .field-row, .waitlist[data-state="done"] label { display: none; }
.waitlist[data-state="done"] .help { font-size: 16px; color: var(--paper); }

/* --- sections ---------------------------------------------------------- */

.section {
  padding: clamp(80px, 10vw, 140px) var(--gutter) 0;
  max-width: 1400px; margin: 0 auto;
}
.section-head { display: grid; gap: 16px; max-width: 820px; margin-bottom: clamp(36px, 4.5vw, 56px); }
.section h2 { font-size: clamp(2rem, 3.7vw, 3.3rem); }
.section-head p { color: var(--paper-dim); max-width: 62ch; }

/* an inset plate: the sheet's double rule and tick border, carried down the page */
.inset {
  position: relative; margin: 0;
  border: var(--hair);
  padding: clamp(22px, 3.2vw, 44px);
}
.inset::before, .inset::after {
  content: ""; position: absolute; left: 0; right: 0; height: 5px; pointer-events: none;
  background: linear-gradient(90deg, var(--ink-3) 1px, transparent 1px) 0 0 / 16px 100% repeat-x;
}
.inset::before { top: 0; }
.inset::after { bottom: 0; }

/* close */
/* full bleed so the glow has no hard edge; content keeps the section's measure */
.close { position: relative; padding-bottom: clamp(90px, 11vw, 150px); isolation: isolate; max-width: none; padding-inline: max(var(--gutter), calc((100% - 1400px) / 2 + var(--gutter))); overflow: clip; }
.close::before {
  content: ""; position: absolute; z-index: -1; pointer-events: none;
  inset: 0;
  background: radial-gradient(60% 55% at 22% 55%, rgb(var(--lit) / 0.22), transparent 70%);
}
.close h2 { font-size: clamp(2.8rem, 6.4vw, 5.6rem); }
.close > p { margin-top: 14px; color: var(--paper-dim); }
.close .waitlist { max-width: 520px; margin-top: 30px; }

.footer {
  display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: baseline;
  padding: 26px var(--gutter); border-top: var(--hair);
  font-size: 14px; color: var(--ink-4);
}
.footer .wordmark { color: var(--paper); margin-right: auto; }

/* --- responsive -------------------------------------------------------- */

@media (max-width: 767px) {
  body { font-size: 16px; }
  .nav nav { display: none; }
  .nav { justify-content: space-between; }
  .field-row { flex-direction: column; gap: 8px; }
  .waitlist input { flex: none; border-right: 1px solid var(--ink-4); }
}

/* --- questions ------------------------------------------------------------ */

.faq { max-width: 820px; border-top: var(--hair); }
.faq details { border-bottom: var(--hair); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 20px 0; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
/* a drawn plus that folds to a minus */
.faq summary::after {
  content: ""; flex: none; width: 14px; height: 14px;
  background: linear-gradient(var(--paper-dim) 0 0) center / 14px 1.5px no-repeat, linear-gradient(var(--paper-dim) 0 0) center / 1.5px 14px no-repeat;
  transition: background-size 0.2s ease-out;
}
.faq details[open] summary::after { background-size: 14px 1.5px, 1.5px 0; }
.faq summary h3 { font-size: 18px; font-weight: 650; }
.faq summary:hover h3 { text-decoration: underline; text-underline-offset: 0.2em; }
.faq details p { padding: 0 0 22px; color: var(--paper-dim); max-width: 68ch; }

/* a field people never see: bots fill it in */
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.waitlist { position: relative; }
.waitlist[data-state="sending"] .btn { opacity: 0.6; cursor: progress; }

/* 404 */
.lost { min-height: 70vh; display: grid; align-content: center; justify-items: start; gap: 20px; }
.lost p { color: var(--paper-dim); max-width: 46ch; }

/* privacy: one readable column */
.prose { max-width: 68ch; display: grid; gap: 16px; padding-block: clamp(56px, 8vw, 110px); }
.prose h1 { margin-bottom: 8px; }
.prose h2 { margin-top: 24px; font-size: clamp(22px, 2.4vw, 28px); }
.prose p { color: var(--paper-dim); }
.prose p a:not(.btn) { color: var(--paper); }
.prose .btn { justify-self: start; margin-top: 16px; }

/* comparison pages */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.compare-intro { display: grid; gap: 22px; justify-items: start; padding-top: clamp(64px, 9vw, 130px); }
.compare-intro h1 { font-size: clamp(2.4rem, 5.6vw, 4.8rem); max-width: 22ch; }
.compare-intro p { color: var(--paper-dim); max-width: 60ch; font-size: clamp(17px, 1.5vw, 19px); }
.compare-wrap { overflow-x: auto; border-top: var(--hair); }
.compare { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
.compare th, .compare td { padding: 16px 18px 16px 0; text-align: left; vertical-align: top; border-bottom: var(--hair); }
.compare thead th { font-size: 14px; font-weight: 650; color: var(--paper); }
.compare tbody th { font-weight: 500; color: var(--ink-4); width: 26%; }
.compare td { color: var(--paper-dim); width: 37%; }
.compare td:first-of-type { color: var(--paper); }
.compare a, .prose-block a, .faq a { color: inherit; text-underline-offset: 0.2em; }
.compare-note { margin-top: 16px; font-size: 13px; color: var(--ink-4); max-width: 70ch; }
.prose-block { display: grid; gap: 16px; }
.prose-block h2 { margin-bottom: 8px; }
.prose-block p { color: var(--paper-dim); max-width: 64ch; }
.nav .wordmark + .btn { margin-left: auto; } /* pages without section links */
/* phones: each row is its label over the two answers, so both columns stay in view */
@media (max-width: 640px) {
  .compare { min-width: 0; }
  .compare tr { display: grid; grid-template-columns: 1fr 1fr; column-gap: 16px; border-bottom: var(--hair); }
  .compare th, .compare td { border-bottom: 0; width: auto; padding-right: 0; }
  .compare thead th:first-child { display: none; }
  .compare tbody th { grid-column: 1 / -1; width: auto; padding-bottom: 2px; }
  .compare tbody td { width: auto; padding-top: 4px; }
}

/* --- 3D hero: an isometric PC lit by the engine, flown through on scroll --- */

.nav-over { position: fixed; inset: 0 0 auto; background: linear-gradient(rgb(5 6 8 / 0.85), rgb(5 6 8 / 0)); border-bottom: 0; }
.rig-track { position: relative; isolation: isolate; }
.rig-stage { position: sticky; top: 0; height: 100svh; z-index: -1; overflow: clip; }
.rig-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
/* a soft shade behind the words, so they read over the light */
.rig-stage::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg, rgb(5 6 8 / 0.92) 0%, rgb(5 6 8 / 0.7) 32%, rgb(5 6 8 / 0) 56%);
}
.rig-stop {
  min-height: 100svh; display: grid; align-items: center;
  padding: calc(var(--nav-h) + 40px) var(--gutter) 64px;
}
.rig-intro { margin-top: -100svh; min-height: max(100svh, 720px); }
.rig-copy { display: grid; gap: 24px; max-width: 600px; }
.rig-copy h1 { font-size: clamp(2.6rem, 4.6vw, 4.4rem); }
.rig-card { max-width: 500px; gap: 20px; }
.rig-card h2 { font-size: clamp(2rem, 3.4vw, 3.2rem); }
.rig-card p, .rig-lede { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.6; color: var(--paper-dim); max-width: 48ch; }
.rig-card .btn-beat { justify-self: start; width: auto; height: 40px; }
.rig-card .help { font-size: 13px; line-height: 1.5; color: var(--ink-4); }
.rig-copy .waitlist { margin-top: 0; }
.rig-controls { display: grid; gap: 14px; padding-top: 20px; border-top: var(--hair); }
.rig-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.rig-label { width: 64px; font-size: 13px; color: var(--ink-4); }
.chips, .swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  height: 34px; padding: 0 14px; border: 1px solid var(--ink-3); background: rgb(12 14 19 / 0.7);
  color: var(--paper-dim); font: 600 14px/1 var(--font); cursor: pointer;
  transition: border-color 0.2s ease-out, color 0.2s ease-out;
}
.chip:hover { color: var(--paper); border-color: var(--ink-4); }
.chip[aria-pressed="true"] { color: var(--paper); border-color: rgb(var(--lit)); }
.swatch {
  width: 26px; height: 26px; padding: 0; border: 1px solid var(--ink-3); border-radius: 50%; cursor: pointer;
  background: conic-gradient(from 200deg, var(--a), var(--b), var(--c), var(--a));
  transition: transform 0.15s ease-out, box-shadow 0.2s ease-out;
}
.swatch:hover { transform: scale(1.1); }
.swatch[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--ink-0), 0 0 0 3px var(--paper); }
.chip:focus-visible, .swatch:focus-visible { outline: 2px solid var(--paper); outline-offset: 2px; }
.rig-controls .btn-beat { justify-self: start; width: auto; height: 40px; }
.rig-note { position: absolute; right: var(--gutter); bottom: 22px; font-size: 12px; color: var(--ink-4); }
.no-webgl .rig-canvas { background: radial-gradient(60% 60% at 70% 50%, rgb(var(--lit) / 0.25), transparent); }

@media (max-width: 760px) {
  .rig-stage::after { background: linear-gradient(180deg, rgb(5 6 8 / 0) 38%, rgb(5 6 8 / 0.94) 62%); }
  .rig-stop { align-items: end; padding-top: 0; padding-bottom: 48px; }
  .rig-intro .rig-copy { padding-top: 46svh; }
  .rig-note { left: var(--gutter); right: auto; bottom: auto; top: calc(var(--nav-h) + 6px); }
}
}

/* --- slides: the home page moves one full screen at a time ---------------------- */

html.slides { scroll-snap-type: y mandatory; scroll-padding-top: 0; }
@media (max-width: 760px) { html.slides { scroll-snap-type: y proximity; } }   /* tall phone slides can't trap a thumb */
.slides .rig-stop, .slides .band { scroll-snap-align: start; }

.band {
  min-height: 100svh; display: grid; align-content: center;
  padding: calc(var(--nav-h) + 48px) var(--gutter) 72px;
  position: relative; isolation: isolate;
}
.band > :not(.screens) { max-width: 620px; }   /* words on the left, the PC on the right */
.band-head { display: grid; gap: 18px; margin-bottom: clamp(36px, 5vw, 64px); }
.band h2 { font-size: clamp(2.2rem, 4vw, 3.6rem); }
.band-head p { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.6; color: var(--paper-dim); max-width: 60ch; }

/* each slide's content rises in as it arrives (only once JS says it can) */
.motion-ready .band > *, .motion-ready .rig-stop > * { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease-out, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.motion-ready .is-in > * { opacity: 1; transform: none; }
.motion-ready .is-in > *:nth-child(2) { transition-delay: 0.08s; }
.motion-ready .is-in > *:nth-child(3) { transition-delay: 0.16s; }

/* the app: two real screenshots, framed like monitors throwing light */
.screens { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 40px); }
.screen { margin: 0; }
.screen img {
  display: block; width: 100%; height: auto;
  border: 1px solid var(--ink-3);
  outline: 6px solid var(--ink-1);
}
.screen figcaption { margin-top: 18px; font-size: 15px; line-height: 1.5; color: var(--ink-4); }

/* setup: three numbered steps */
.steps-3 { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; gap: clamp(20px, 3vw, 40px); counter-reset: step; }
.steps-3 li {
  counter-increment: step; display: grid; gap: 12px; align-content: start;
  grid-template-columns: auto 1fr; column-gap: 20px;
  padding: 22px 24px; background: rgb(12 14 19 / 0.82); border: 1px solid var(--ink-3);
  border-left: 2px solid rgb(var(--lit));
}
.steps-3 li > * { grid-column: 2; }
.steps-3 li::before { grid-row: 1 / 3; padding-top: 4px; content: "0" counter(step); font-weight: 800; font-stretch: 118%; font-size: 15px; letter-spacing: 0.04em; color: rgb(var(--lit)); }
.steps-3 h3 { font-size: 22px; }
.steps-3 p { font-size: 17px; line-height: 1.6; color: var(--paper-dim); }

/* works with: the parts, as chips */
.parts { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 12px; }
.parts li { padding: 14px 20px; border: 1px solid var(--ink-3); background: rgb(12 14 19 / 0.82); font-size: 16px; font-weight: 600; }
.parts a { color: var(--paper); text-underline-offset: 0.2em; }
.works-note { margin-top: 32px; font-size: 17px; line-height: 1.6; color: var(--paper-dim); max-width: 60ch; }

/* questions: heading beside the list so it fits one screen */
#faq .faq { max-width: 680px; }
#faq .band-head { margin-bottom: 24px; }
#faq .faq summary h3 { font-size: 17px; }
#faq .faq details p { font-size: 16px; line-height: 1.6; }

/* the last slide: one big ask */
.band-join { justify-items: start; }
.band-join::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(55% 60% at 30% 55%, rgb(var(--lit) / 0.24), transparent 70%);
}
.join-card { display: grid; gap: 20px; max-width: 620px; }
.join-card h2 { font-size: clamp(2.8rem, 7vw, 6rem); }
.join-card > p { font-size: clamp(17px, 1.4vw, 20px); line-height: 1.6; color: var(--paper-dim); }

/* the weigh-in on the last 3D stop */
.weigh { margin: 4px 0 0; display: grid; gap: 16px; }
.weigh-row { display: grid; gap: 6px; }
.weigh dt { font-size: 14px; font-weight: 650; color: var(--paper); }
.weigh dd { margin: 0; display: grid; gap: 6px; font-size: 14px; color: var(--paper-dim); }
.weigh-bar { display: block; height: 10px; background: var(--ink-2); position: relative; }
.weigh-engine::after, .weigh-signal::after { content: ""; position: absolute; inset: 0 auto 0 0; }
.weigh-engine::after { width: 3.2%; min-width: 6px; background: rgb(var(--lit)); }
.weigh-signal::after { width: 100%; background: var(--ink-4); }
.weigh-note { font-size: 13px !important; color: var(--ink-4) !important; }
.weigh-note a { color: var(--paper-dim); text-underline-offset: 0.2em; }

@media (max-width: 900px) {
  .screens { grid-template-columns: 1fr; }
  .band { align-content: end; padding-top: 46svh; padding-bottom: 48px; }
  .band-join::before { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .motion-ready .band > *, .motion-ready .rig-stop > * { opacity: 1; transform: none; transition: none; }
}