/* DubMetric premium motion landing — framework-free, accessible, responsive. */

:root {
  --bg: #08090b;
  --bg-soft: #0d0f12;
  --panel: rgba(18, 20, 24, 0.78);
  --panel-solid: #121418;
  --panel-raised: #171a1f;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --ink: #f4f1ea;
  --muted: #98999d;
  --muted-strong: #bebfc2;
  --champagne: #d8bd89;
  --champagne-soft: rgba(216, 189, 137, 0.12);
  --pass: #74c99c;
  --warn: #e0b461;
  --fail: #df7474;
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 30px;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(.22, .8, .2, 1);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 7rem; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 14% 10%, rgba(216, 189, 137, 0.06), transparent 28rem),
    radial-gradient(circle at 82% 16%, rgba(255, 255, 255, 0.035), transparent 30rem),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; }
a { color: inherit; }

.ambient {
  position: fixed;
  z-index: -1;
  pointer-events: none;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.18;
}
.ambient-one { top: -15rem; right: -10rem; background: #736349; }
.ambient-two { bottom: -20rem; left: -15rem; background: #293036; opacity: 0.24; }

.site-header {
  position: fixed;
  inset: 1rem 0 auto;
  z-index: 50;
  padding: 0 1rem;
  pointer-events: none;
}
.nav-shell {
  width: min(74rem, 100%);
  margin: 0 auto;
  min-height: 3.85rem;
  padding: .55rem .65rem .55rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(12, 13, 16, 0.68);
  backdrop-filter: blur(22px) saturate(130%);
  -webkit-backdrop-filter: blur(22px) saturate(130%);
  box-shadow: 0 14px 50px rgba(0,0,0,.24);
  pointer-events: auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  font-weight: 720;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 1.55rem;
  height: 1.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
}
.brand-mark span {
  width: 3px;
  border-radius: 99px;
  background: var(--ink);
  display: block;
}
.brand-mark span:nth-child(1) { height: 48%; }
.brand-mark span:nth-child(2) { height: 100%; background: var(--champagne); }
.brand-mark span:nth-child(3) { height: 70%; }
.nav-shell nav { display: flex; align-items: center; gap: .2rem; }
.nav-shell nav a {
  text-decoration: none;
  color: var(--muted-strong);
  font-size: .9rem;
  padding: .65rem .85rem;
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease;
}
.nav-shell nav a:hover { color: var(--ink); background: rgba(255,255,255,.05); }
.nav-shell nav .nav-cta {
  color: #111318;
  background: var(--ink);
  font-weight: 700;
  padding-inline: 1rem;
}
.nav-shell nav .nav-cta:hover { background: #fff; color: #0a0b0d; }

main { width: min(78rem, calc(100% - 2rem)); margin: 0 auto; }
.hero {
  min-height: 100svh;
  padding: 9rem 0 4rem;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(30rem, 1.12fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 6rem);
}
.hero-copy-block { max-width: 37rem; }
.eyebrow, .section-kicker {
  margin: 0 0 1.25rem;
  color: var(--champagne);
  font-size: .76rem;
  font-weight: 760;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow { display: inline-flex; align-items: center; gap: .6rem; }
.eyebrow-dot {
  width: .48rem;
  height: .48rem;
  border-radius: 50%;
  background: var(--champagne);
  box-shadow: 0 0 0 5px var(--champagne-soft);
}
.hero h1 {
  margin: 0;
  max-width: 10ch;
  font-size: clamp(3.3rem, 6.4vw, 6.8rem);
  line-height: .92;
  letter-spacing: -.065em;
  font-weight: 680;
}
.hero h1 span { color: #85878b; }
.hero-copy {
  margin: 1.75rem 0 0;
  max-width: 36rem;
  color: var(--muted-strong);
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  line-height: 1.7;
}
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.btn {
  border: 0;
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  padding: .72rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 720;
  font-size: .92rem;
  cursor: pointer;
  transition: transform 180ms var(--ease), background 180ms ease, border-color 180ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ink); color: #0c0d0f; }
.btn-primary:hover { background: #fff; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: rgba(255,255,255,.025); }
.btn-ghost:hover { border-color: var(--line-strong); background: rgba(255,255,255,.05); }
.hero-note { margin: 1rem 0 0; color: #77797e; font-size: .8rem; }

.product-stage { position: relative; min-width: 0; }
.stage-glow {
  position: absolute;
  width: 70%;
  height: 60%;
  inset: 18% 15%;
  border-radius: 50%;
  background: rgba(216, 189, 137, .11);
  filter: blur(80px);
  pointer-events: none;
}
.product-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(150deg, rgba(255,255,255,.065), transparent 38%),
    rgba(16, 18, 21, .76);
  backdrop-filter: blur(30px) saturate(120%);
  -webkit-backdrop-filter: blur(30px) saturate(120%);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  padding: 1.05rem;
  transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
  transition: transform 450ms var(--ease);
}
.product-card:hover { transform: perspective(1200px) rotateY(0) rotateX(0) translateY(-3px); }
.product-head, .product-foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: .4rem .45rem 1rem;
}
.product-kicker { margin: 0 0 .2rem; color: #77797d; font-size: .66rem; letter-spacing: .14em; font-weight: 800; }
.product-title { margin: 0; font-size: .92rem; font-weight: 700; }
.live-badge, .status-chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border-radius: 999px;
  font-size: .67rem;
  font-weight: 820;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.live-badge { color: var(--muted-strong); border: 1px solid var(--line); padding: .38rem .58rem; background: rgba(255,255,255,.03); }
.live-badge span { width: .4rem; height: .4rem; border-radius: 50%; background: var(--champagne); }

.motion-tabs {
  --pill-x: 0px;
  --pill-w: 0px;
  position: relative;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .2rem;
  padding: .28rem;
  margin-bottom: .7rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(0,0,0,.22);
}
.motion-pill {
  position: absolute;
  top: .28rem;
  bottom: .28rem;
  left: .28rem;
  width: var(--pill-w);
  transform: translateX(var(--pill-x));
  border-radius: 12px;
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
  transition: width 330ms var(--ease), transform 420ms var(--ease);
}
.motion-tab {
  position: relative;
  z-index: 1;
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: .72rem .8rem;
  color: #777a7e;
  background: transparent;
  cursor: pointer;
  font-weight: 720;
  font-size: .8rem;
  transition: color 220ms ease;
}
.motion-tab.is-active { color: var(--ink); }

.preview-panel {
  position: relative;
  overflow: hidden;
  min-height: 18.8rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.015));
  animation: panel-in 420ms var(--ease) both;
}
.preview-panel[hidden] { display: none; }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(8px) scale(.985); filter: blur(4px); }
  to { opacity: 1; transform: none; filter: none; }
}
.metric-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.metric-label { display: block; margin-bottom: .25rem; color: #7e8084; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 750; }
.metric-row strong { font-size: clamp(1.7rem, 4vw, 2.6rem); letter-spacing: -.04em; font-weight: 650; }
.metric-row strong small { color: #84868a; font-size: .45em; letter-spacing: 0; font-weight: 650; }
.status-chip { padding: .42rem .58rem; }
.status-warn { color: var(--warn); background: rgba(224,180,97,.1); border: 1px solid rgba(224,180,97,.18); }
.status-review { color: var(--champagne); background: var(--champagne-soft); border: 1px solid rgba(216,189,137,.2); }

.signal-view {
  position: relative;
  height: 8.8rem;
  margin-top: 1.25rem;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.05);
  background: rgba(5,6,8,.42);
}
.signal-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 100% 2rem, 3rem 100%;
}
.signal-line {
  position: absolute;
  left: 12%;
  width: 68%;
  height: 2px;
  border-radius: 99px;
}
.signal-line::before, .signal-line::after {
  content: "";
  position: absolute;
  inset: -4px auto auto 18%;
  width: 7px;
  height: 10px;
  border-radius: 2px;
  background: currentColor;
  box-shadow: 34px 1px 0 currentColor, 72px -2px 0 currentColor, 116px 2px 0 currentColor, 162px -1px 0 currentColor, 211px 1px 0 currentColor, 255px -2px 0 currentColor;
  opacity: .75;
}
.signal-reference { top: 34%; color: #b9bcc0; background: currentColor; }
.signal-dubbed { top: 64%; left: 20%; color: var(--champagne); background: currentColor; }
.signal-label { position: absolute; left: .65rem; color: #65676b; font-size: .58rem; font-weight: 800; letter-spacing: .08em; }
.signal-label-a { top: calc(34% - .55rem); }
.signal-label-b { top: calc(64% - .55rem); }
.offset-marker {
  position: absolute;
  top: 1rem;
  left: 45%;
  padding: .24rem .42rem;
  border-radius: 6px;
  background: var(--champagne-soft);
  color: var(--champagne);
  font-size: .66rem;
  font-weight: 760;
}
.panel-note { margin: 1rem 0 0; color: #8a8c90; font-size: .78rem; }

.drift-chart {
  position: relative;
  height: 9rem;
  margin-top: 1.25rem;
  border: 1px solid rgba(255,255,255,.05);
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,.025), rgba(0,0,0,.15));
}
.chart-zero { position: absolute; left: 8%; right: 8%; top: 55%; height: 1px; background: rgba(255,255,255,.12); }
.chart-line {
  position: absolute;
  width: 78%;
  height: 2px;
  left: 10%;
  top: 66%;
  background: var(--champagne);
  transform: rotate(-10deg);
  transform-origin: left center;
  box-shadow: 0 0 18px rgba(216,189,137,.22);
}
.chart-point { position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--champagne); box-shadow: 0 0 0 5px var(--champagne-soft); }
.point-a { left: 22%; top: 59%; }.point-b { left: 52%; top: 45%; }.point-c { left: 82%; top: 31%; }
.chart-start, .chart-end { position: absolute; bottom: .5rem; color: #626469; font-size: .62rem; }
.chart-start { left: .65rem; }.chart-end { right: .65rem; }

.range-list { display: grid; gap: .6rem; margin-top: 1.25rem; }
.range-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .8rem;
  padding: .85rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0,0,0,.16);
}
.range-item span { width: 1.45rem; height: 1.45rem; border-radius: 50%; display: grid; place-items: center; color: var(--champagne); background: var(--champagne-soft); font-size: .62rem; font-weight: 800; }
.range-item code { color: var(--ink); font: 700 .76rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.range-item em { color: #707277; font-size: .68rem; font-style: normal; }
.product-foot { padding: .9rem .35rem .15rem; color: #686a6e; font-size: .67rem; }
.report-format { color: var(--champagne); font-weight: 750; }

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.018);
  overflow: hidden;
}
.signal-strip > div { min-width: 0; display: flex; gap: .75rem; align-items: center; padding: 1rem 1.15rem; border-right: 1px solid var(--line); }
.signal-strip > div:last-child { border-right: 0; }
.strip-icon { color: #5e6065; font-size: .68rem; font-weight: 800; }
.signal-strip p { margin: 0; min-width: 0; }
.signal-strip strong, .signal-strip small { display: block; }
.signal-strip strong { font-size: .8rem; white-space: nowrap; }
.signal-strip small { margin-top: .12rem; color: #6f7176; font-size: .68rem; white-space: nowrap; }

.section { padding: clamp(5.5rem, 10vw, 9rem) 0; }
.section-intro { max-width: 42rem; }
.section-intro h2, .pilot-copy h2 {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1;
  letter-spacing: -.055em;
  font-weight: 650;
}
.section-intro > p:not(.section-kicker), .pilot-copy > p:not(.section-kicker) { color: var(--muted); font-size: 1rem; max-width: 38rem; margin: 1.35rem 0 0; }

.steps { list-style: none; padding: 0; margin: 3rem 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
.step {
  min-height: 18rem;
  display: flex;
  flex-direction: column;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
  transition: transform 250ms var(--ease), border-color 250ms ease, background 250ms ease;
}
.step:hover { transform: translateY(-5px); border-color: var(--line-strong); background: linear-gradient(160deg, rgba(255,255,255,.065), rgba(255,255,255,.016)); }
.step-top { display: flex; align-items: center; justify-content: space-between; color: #6b6d72; font-size: .7rem; font-weight: 800; }
.step-top i { width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); font-style: normal; }
.step h3 { margin: auto 0 .65rem; font-size: 1.55rem; letter-spacing: -.03em; }
.step p { margin: 0 0 .8rem; color: var(--muted-strong); }
.step small { color: #707277; }

.split-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 7vw, 7rem); align-items: start; border-top: 1px solid var(--line); }
.sticky-intro { position: sticky; top: 8rem; }
.check-stack { display: grid; gap: .8rem; }
.check-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.2rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.018);
  transition: border-color 220ms ease, transform 220ms var(--ease);
}
.check-card:hover { border-color: var(--line-strong); transform: translateX(4px); }
.check-index { width: 2rem; color: #65676c; font-size: .68rem; font-weight: 800; }
.check-card h3 { margin: 0 0 .35rem; font-size: 1.1rem; }
.check-card p { margin: 0; color: var(--muted); font-size: .88rem; }
.mini-readout { padding: .45rem .58rem; border-radius: 8px; background: rgba(255,255,255,.04); color: var(--champagne); font: 760 .66rem ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }

.centered { margin-inline: auto; text-align: center; }
.centered p:not(.section-kicker) { margin-inline: auto; }
.audience-section { border-top: 1px solid var(--line); }
.audience-grid { margin-top: 2.5rem; display: flex; flex-wrap: wrap; justify-content: center; gap: .65rem; }
.audience-grid span { padding: .78rem 1rem; border-radius: 999px; border: 1px solid var(--line); color: var(--muted-strong); background: rgba(255,255,255,.02); font-size: .86rem; }

.pilot-section { padding-top: 2rem; }
.pilot-shell {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(1.4rem, 4vw, 3rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 0 0, rgba(216,189,137,.09), transparent 28rem),
    linear-gradient(145deg, rgba(255,255,255,.05), rgba(255,255,255,.015));
}
.pilot-copy h2 { font-size: clamp(2.4rem, 4.5vw, 4.5rem); }
.pilot-meta { display: grid; gap: .7rem; margin-top: 2rem; color: var(--muted-strong); font-size: .82rem; }
.pilot-meta span { display: flex; align-items: center; gap: .7rem; }
.pilot-meta strong { color: var(--champagne); font-size: .65rem; letter-spacing: .08em; }
#pilot-form { display: grid; gap: 1rem; align-content: start; padding: 1.2rem; border-radius: 22px; background: rgba(5,6,8,.28); border: 1px solid rgba(255,255,255,.06); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.form-row { display: grid; gap: .42rem; }
label { color: var(--muted-strong); font-size: .76rem; font-weight: 680; }
.optional { color: #66686d; font-weight: 500; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .78rem .85rem;
  background: rgba(255,255,255,.025);
  color: var(--ink);
  outline: none;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}
input::placeholder, textarea::placeholder { color: #5d5f63; }
input:focus, select:focus, textarea:focus { border-color: rgba(216,189,137,.45); background: rgba(255,255,255,.04); box-shadow: 0 0 0 3px rgba(216,189,137,.06); }
textarea { resize: vertical; min-height: 7rem; }
.form-submit { justify-self: start; margin-top: .2rem; }
.form-status { min-height: 1.2rem; margin: 0; color: var(--champagne); font-size: .78rem; font-weight: 650; }
.form-status[data-error="true"] { color: var(--fail); }
.form-honesty { margin: -.35rem 0 0; color: #66686d; font-size: .68rem; }

.beta-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  margin: 1.2rem 0 5rem;
  padding: 1.1rem 1.2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.beta-note span { color: var(--champagne); font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.beta-note p { margin: 0; max-width: 58rem; color: #707277; font-size: .76rem; }

.footer {
  width: min(78rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: .65rem;
}
.footer-brand { width: max-content; }
.footer > p { margin: 0; color: #6b6d71; font-size: .78rem; }
.footer-links { display: flex; justify-content: space-between; gap: 1rem; color: #6b6d71; font-size: .72rem; }
.footer-links a { color: var(--muted-strong); text-decoration: none; }
.footer-links a:hover { color: var(--ink); }

[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 650ms var(--ease), transform 700ms var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }

:focus-visible { outline: 2px solid var(--champagne); outline-offset: 3px; }

@media (max-width: 70rem) {
  .hero { grid-template-columns: 1fr; padding-top: 9.5rem; min-height: auto; }
  .hero-copy-block { max-width: 46rem; }
  .hero h1 { max-width: 11ch; font-size: clamp(4rem, 10vw, 6.4rem); }
  .product-stage { max-width: 44rem; width: 100%; }
  .signal-strip { grid-template-columns: 1fr 1fr; }
  .signal-strip > div:nth-child(2) { border-right: 0; }
  .signal-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .split-section { grid-template-columns: 1fr; }
  .sticky-intro { position: static; }
  .pilot-shell { grid-template-columns: 1fr; }
}

@media (max-width: 48rem) {
  html { scroll-padding-top: 6rem; }
  .site-header { inset: .65rem 0 auto; padding-inline: .65rem; }
  .nav-shell { border-radius: 20px; min-height: 3.5rem; padding-left: .8rem; }
  .nav-shell nav a:not(.nav-cta) { display: none; }
  .nav-shell nav .nav-cta { padding: .56rem .78rem; font-size: .78rem; }
  main, .footer { width: min(100% - 1.2rem, 78rem); }
  .hero { padding-top: 7rem; gap: 2.2rem; }
  .hero h1 { font-size: clamp(3.4rem, 16vw, 5.2rem); }
  .hero-copy { font-size: .98rem; }
  .cta-row { align-items: stretch; }
  .btn { width: 100%; }
  .product-card { border-radius: 22px; padding: .72rem; transform: none; }
  .product-card:hover { transform: none; }
  .product-title { font-size: .78rem; }
  .live-badge { font-size: .6rem; }
  .preview-panel { min-height: 19.8rem; padding: 1rem; }
  .signal-line::before, .signal-line::after { box-shadow: 28px 1px 0 currentColor, 60px -2px 0 currentColor, 94px 2px 0 currentColor, 130px -1px 0 currentColor; }
  .range-item { grid-template-columns: auto 1fr; }
  .range-item em { grid-column: 2; }
  .product-foot { align-items: flex-start; }
  .signal-strip { grid-template-columns: 1fr; }
  .signal-strip > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .signal-strip > div:last-child { border-bottom: 0; }
  .section { padding: 5rem 0; }
  .section-intro h2, .pilot-copy h2 { font-size: clamp(2.5rem, 12vw, 4rem); }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: 14rem; }
  .check-card { grid-template-columns: auto 1fr; align-items: start; }
  .mini-readout { grid-column: 2; width: max-content; }
  .pilot-shell { padding: 1rem; border-radius: 22px; }
  #pilot-form { padding: .9rem; }
  .form-grid { grid-template-columns: 1fr; }
  .form-submit { width: 100%; }
  .beta-note { grid-template-columns: 1fr; }
  .footer-links { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}