/* cUSDT landing page. The world: a night ground, the product beside its sentence, one blue that sits on the action
   and in the three step tiles, headings set to the left. Tokens first, then primitives, then the page in reading order,
   then breakpoints, then motion preferences. */

/* ---------- tokens ---------- */
:root {
  color-scheme: dark;
  --ground: #101317;
  --raised: #171b20;
  --raised-2: #1e2227;
  --well: rgba(12, 15, 19, 0.82);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --ink: #f2f4f8;
  --body: #dfe3ea;
  --muted: #95a1b8;
  --dim: #8691a8;
  --label: #b1c0dd;
  --blue: #2a6df0;
  --blue-deep: #2463df;
  --blue-tile: #3c80ff;
  --blue-light: #86b1ff;
  --blue-soft: rgba(60, 128, 255, 0.14);
  --blue-ring: rgba(60, 128, 255, 0.4);
  --tile: linear-gradient(160deg, #2b76ff 0%, #5792ff 55%, #79a8ff 100%);
  --tile-light: linear-gradient(160deg, #79a8ff 0%, #a9c6ff 100%);
  --tile-paper: linear-gradient(160deg, #eef3fe 0%, #d0ddf7 100%);
  --danger: #ff7792;
  --font: "Switzer", "Inter", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --r-plate: 16px;
  --r-field: 10px;
  --r-pill: 999px;
  --container: 1200px;
  --gutter: 24px;
  --nav-h: 76px;
  --section-y: 128px;
  --coin: var(--blue);
  --coin-ink: #ffffff;
  --coin-night: #1e2227;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
  scrollbar-color: #2c313a var(--ground);
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--body);
  background: var(--ground);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  caret-color: var(--blue);
}
body.menu-open { overflow: hidden; }
::selection { background: rgba(60, 128, 255, 0.35); color: var(--ink); }
h1, h2, h3, h4, p, dl, dd, ol, ul, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: var(--ink); text-decoration: none; text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration: underline; text-decoration-color: var(--blue); }
button { font: inherit; color: inherit; }
img, svg { display: block; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: var(--r-field); }
[tabindex="-1"]:focus { outline: none; }
.icon { width: 18px; height: 18px; flex: none; fill: currentColor; }
.num { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); }
.is-soon { pointer-events: none; }
.is-soon .soon { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.02em; color: var(--dim); margin-left: 0.4em; }
.btn.is-soon { opacity: 0.6; }
.nav-links a.is-soon, .footer-col a.is-soon, .menu a.is-soon { color: var(--dim); }

.skip {
  position: absolute; left: 16px; top: -56px; z-index: 100;
  padding: 10px 16px; background: var(--blue); color: #fff; border-radius: var(--r-pill); font-weight: 500;
}
.skip:focus { top: 12px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: 808px; }

/* type scale: one grotesk, light for the display, book for the rest, no gradient */
.display {
  font-size: clamp(2.5rem, 1.7rem + 2.5vw, 3.625rem);
  line-height: 1.08;
  letter-spacing: -0.028em;
  font-weight: 400;
  color: var(--ink);
  text-wrap: balance;
}
h2 {
  font-size: clamp(1.875rem, 1.4rem + 1.5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 400;
  color: var(--ink);
  text-wrap: balance;
}
h3 { font-size: 1.375rem; line-height: 1.25; letter-spacing: -0.01em; font-weight: 400; color: var(--ink); }
h4 { font-size: 0.8125rem; line-height: 1.3; font-weight: 500; color: var(--label); font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.lede { font-size: 1.125rem; line-height: 1.5; color: var(--muted); max-width: 44ch; text-wrap: pretty; }
.grad { color: var(--ink); }

/* ---------- primitives ---------- */
.plate {
  position: relative;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: var(--r-plate);
  box-shadow: 0 24px 60px -40px rgba(0, 0, 0, 0.8);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 22px;
  border-radius: var(--r-pill);
  border: 0;
  font-weight: 500; font-size: 0.9375rem; line-height: 1; letter-spacing: -0.01em;
  color: var(--ink);
  white-space: nowrap; cursor: pointer; text-decoration: none;
  background: var(--raised-2);
  box-shadow: inset 0 0 0 1px var(--line);
  transition: transform 160ms var(--ease-out), background-color 200ms ease, box-shadow 200ms ease;
}
.btn:hover { text-decoration: none; background: #2c313a; box-shadow: inset 0 0 0 1px var(--line-strong); }
.btn:active { transform: scale(0.97); }
.btn .icon { width: 16px; height: 16px; }
.btn-primary { color: #fff; background: var(--blue); box-shadow: none; }
.btn-primary:hover { background: var(--blue-deep); }
.btn-block { width: 100%; }
.disc {
  display: inline-flex; align-items: center; justify-content: center; flex: none;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--raised-2);
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--ink);
}

.input {
  width: 100%; height: 44px; padding: 0 14px;
  background: var(--well); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-field);
  font: inherit; font-size: 0.9375rem;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
.input::placeholder { color: var(--dim); opacity: 1; }
.input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(60, 128, 255, 0.2); }
.input[aria-invalid="true"] { border-color: var(--danger); }
.input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(255, 119, 146, 0.2); }
textarea.input { height: auto; padding: 10px 14px; resize: vertical; line-height: 1.5; min-height: 132px; }
.select-wrap { position: relative; }
.select { appearance: none; -webkit-appearance: none; padding-right: 40px; cursor: pointer; }
.select-caret { position: absolute; right: 14px; top: 50%; translate: 0 -50%; pointer-events: none; color: var(--dim); }
.field { display: grid; gap: 6px; }
.field-label { font-size: 0.875rem; font-weight: 500; color: var(--label); }
.field-help { font-size: 0.875rem; color: var(--dim); }
.field-error { font-size: 0.875rem; color: var(--danger); font-weight: 500; }
.field-error[hidden] { display: none; }

.coin { width: 28px; height: 28px; flex: none; }
.coin-xl { width: 64px; height: 64px; }

/* the corner marks of the step tiles */
.corner { position: absolute; width: 12px; height: 12px; color: var(--line-strong); pointer-events: none; }
.corner::before, .corner::after { content: ""; position: absolute; background: currentColor; }
.corner::before { left: 0; top: 50%; width: 100%; height: 1px; }
.corner::after { top: 0; left: 50%; height: 100%; width: 1px; }

/* ---------- nav: a plain bar that gains a floor once the page has scrolled ---------- */
.nav-sentinel { position: absolute; top: 0; height: 48px; width: 1px; pointer-events: none; }
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color 240ms ease, border-color 240ms ease;
}
.nav.is-scrolled {
  background: rgba(16, 19, 23, 0.86);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.nav-row { display: flex; align-items: center; gap: 12px; height: var(--nav-h); }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.logo:hover { text-decoration: none; }
.logo .coin { width: 28px; height: 28px; }
.logo-text { font-weight: 500; font-size: 1.0625rem; letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 0.9375rem; padding: 8px 0; transition: color 160ms ease; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: 20px; }
.nav-burger { display: none; border: 0; cursor: pointer; padding: 0; }
.nav-burger .icon { width: 20px; height: 20px; }
.nav-burger[aria-expanded="true"] .icon-open, .nav-burger[aria-expanded="false"] .icon-close { display: none; }
.menu { display: none; }
.menu[hidden] { display: none; }
.menu:not([hidden]) {
  display: block; position: fixed; inset: var(--nav-h) 0 0 0; z-index: 49;
  background: var(--ground); overflow: auto; padding: 16px 0 32px;
}
.menu .container { display: grid; gap: 2px; }
.menu a:not(.btn) { padding: 16px 0; font-size: 1.375rem; color: var(--ink); border-bottom: 1px solid var(--line); }
.menu a:not(.btn):hover { text-decoration: none; color: var(--blue-light); }

/* ---------- hero: the product beside its sentence ---------- */
.hero {
  position: relative; isolation: isolate; overflow: clip;
  padding-top: calc(var(--nav-h) + 72px); padding-bottom: 88px;
}
.hero-tint {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(52% 46% at 76% 42%, rgba(42, 109, 240, 0.12) 0%, rgba(42, 109, 240, 0.04) 55%, rgba(42, 109, 240, 0) 100%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 460px; gap: 72px; align-items: center; }
.hero-copy { display: grid; gap: 24px; justify-items: start; max-width: 600px; }
.hero-copy .lede { max-width: 42ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

/* the three rules, one quiet strip under the hero */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--raised); }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.fact { display: grid; gap: 6px; align-content: start; padding: 28px 32px; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact:first-child { padding-left: 0; }
.fact:last-child { padding-right: 0; }
.fact-value { font-size: 1.75rem; line-height: 1.1; letter-spacing: -0.02em; font-weight: 400; color: var(--ink); }
.fact-label { font-size: 0.9375rem; color: var(--muted); text-wrap: pretty; max-width: 30ch; }

/* ---------- sections ---------- */
.section { position: relative; padding: var(--section-y) 0; }
.section-raised { background: var(--raised); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-raised + .section-raised { border-top: 0; }
.section-head { display: grid; gap: 16px; max-width: 64ch; margin: 0 0 56px; }
.section-head p { font-size: 1.125rem; color: var(--muted); max-width: 54ch; text-wrap: pretty; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; justify-items: center; }
.section-head .disc { width: 64px; height: 64px; margin-bottom: 8px; }
.section-head .disc .coin { width: 32px; height: 32px; }

/* the working box */
.box { display: grid; gap: 12px; padding: 24px; background: #15191e; }
.box-head { display: flex; align-items: center; gap: 12px; padding-bottom: 8px; }
.box-head .coin { width: 36px; height: 36px; }
.box-name { font-size: 1.0625rem; font-weight: 500; letter-spacing: -0.01em; color: var(--ink); line-height: 1.2; }
.box-sub { font-size: 0.875rem; color: var(--muted); }
.slot {
  display: grid; gap: 8px; padding: 14px 16px;
  background: var(--well); border-radius: var(--r-field);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
  transition: box-shadow 120ms ease;
}
.slot:focus-within { box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5), inset 0 0 0 1px var(--blue), 0 0 0 3px rgba(60, 128, 255, 0.2); }
.slot-label { font-size: 0.875rem; color: var(--label); }
.slot-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.slot-input, .slot-output {
  flex: 1 1 auto; min-width: 0; width: 100%;
  font-family: var(--mono); font-size: 1.625rem; font-weight: 500; line-height: 1.2; letter-spacing: -0.01em;
  background: transparent; border: 0; padding: 0; color: var(--ink);
}
.slot-input:focus { outline: none; }
.slot-output { display: block; }
.slot-output.is-empty { color: var(--dim); }
.slot-asset {
  display: flex; align-items: center; gap: 8px; flex: none;
  padding: 4px 12px 4px 4px; border-radius: var(--r-pill);
  background: var(--raised-2); box-shadow: inset 0 0 0 1px var(--line);
}
.slot-asset span { display: grid; line-height: 1.15; }
.slot-asset strong { font-size: 0.875rem; font-weight: 500; color: var(--ink); }
.slot-asset small { font-size: 0.6875rem; color: var(--dim); }
.turn { display: flex; justify-content: center; height: 0; margin: -6px 0; position: relative; z-index: 1; }
.turn .disc { width: 32px; height: 32px; translate: 0 -16px; background: var(--raised-2); box-shadow: inset 0 0 0 1px var(--line), 0 0 0 4px #15191e; color: var(--label); }
.turn .icon { width: 14px; height: 14px; }
.box-note { font-size: 0.8125rem; color: var(--dim); line-height: 1.45; text-align: center; }

/* how it works: the segmented switch and the three tiles */
.tabs {
  display: flex; gap: 4px; width: fit-content; margin: 0 0 40px; padding: 4px;
  border-radius: var(--r-pill);
  background: var(--raised);
  box-shadow: inset 0 0 0 1px var(--line);
}
.tab {
  height: 44px; padding: 0 22px; background: transparent; border: 0; border-radius: var(--r-pill);
  font-size: 0.9375rem; font-weight: 500; color: var(--muted); cursor: pointer;
  transition: color 160ms ease, background-color 200ms ease, box-shadow 200ms ease;
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: #fff; background: var(--blue-soft); box-shadow: inset 0 0 0 1px var(--blue-ring); }
.tab:focus-visible { outline-offset: 2px; border-radius: var(--r-pill); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card { overflow: hidden; display: grid; grid-template-rows: auto 1fr; }
.card-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid; place-items: center;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px), var(--tile);
  background-size: 32px 32px, 32px 32px, 100% 100%;
  background-position: center center;
  color: #fff;
}
.card-visual.tile-light { background-image: linear-gradient(rgba(255, 255, 255, 0.22) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.22) 1px, transparent 1px), var(--tile-light); color: #fff; }
.card-visual.tile-paper { background-image: linear-gradient(rgba(60, 128, 255, 0.14) 1px, transparent 1px), linear-gradient(90deg, rgba(60, 128, 255, 0.14) 1px, transparent 1px), var(--tile-paper); color: var(--blue-deep); }
.card-visual .corner { color: rgba(255, 255, 255, 0.6); }
.card-visual.tile-paper .corner { color: rgba(60, 128, 255, 0.5); }
.card-visual .corner:nth-child(1) { left: 12px; top: 12px; }
.card-visual .corner:nth-child(2) { right: 12px; top: 12px; }
.card-visual .corner:nth-child(3) { left: 12px; bottom: 12px; }
.card-visual .corner:nth-child(4) { right: 12px; bottom: 12px; }
.card-visual .scene { width: 100%; height: 100%; }
.card-body { padding: 24px 24px 28px; display: grid; gap: 12px; align-content: start; }
.card-body p { color: var(--muted); text-wrap: pretty; }
.step-risk { font-size: 1rem; color: var(--dim); padding-top: 12px; border-top: 1px solid var(--line); margin-top: 4px; text-wrap: pretty; }
.rail[data-mode="bring"] .on-redeem, .rail[data-mode="redeem"] .on-bring { display: none; }

/* backing: the ledger and the terms */
.ledger {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px;
  padding: 40px 48px; max-width: 880px; margin: 0 auto 64px;
}
.ledger-side { display: grid; justify-items: center; gap: 12px; text-align: center; }
.ledger-label { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--label); }
.ledger-value { font-size: clamp(2rem, 1.4rem + 2vw, 2.75rem); line-height: 1; letter-spacing: -0.02em; font-weight: 300; color: var(--ink); }
.ledger-eq { font-size: 2.5rem; font-weight: 300; color: var(--dim); line-height: 1; padding: 0 8px; }
.terms { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 1000px; margin: 0 auto; padding-top: 32px; border-top: 1px solid var(--line); }
.term { display: grid; gap: 10px; align-content: start; padding: 0 32px; }
.term + .term { border-left: 1px solid var(--line); }
.term dt { font-size: 1.125rem; color: var(--ink); letter-spacing: -0.01em; }
.term dd { color: var(--muted); text-wrap: pretty; }

/* builders: one row */
.section-band { padding: 96px 0; }
.band { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 40px; }
.band-copy { display: grid; gap: 12px; }
.band-copy p { color: var(--muted); font-size: 1.125rem; }
.band-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }

/* questions */
.faq { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%;
  padding: 22px 0; background: transparent; border: 0; text-align: left; cursor: pointer;
  font-size: 1.125rem; color: var(--ink); letter-spacing: -0.01em;
}
.faq-q:focus-visible { outline-offset: 4px; border-radius: var(--r-field); }
.faq-q .disc { width: 32px; height: 32px; }
.faq-q .icon { width: 14px; height: 14px; transition: transform 220ms var(--ease-out); }
.faq-item.is-open .faq-q .icon { transform: rotate(180deg); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 240ms var(--ease-out); }
.faq-a > div { overflow: hidden; }
.faq-a p { padding: 0 56px 22px 0; color: var(--muted); max-width: 62ch; }
.faq-item.is-open .faq-a { grid-template-rows: 1fr; }
.link-ice { color: var(--blue-light); }

/* request access */
.access-form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 32px; }
.field-wide { grid-column: 1 / -1; }
.access-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.access-note { font-size: 0.875rem; color: var(--muted); }

/* ---------- footer ---------- */
.footer { position: relative; overflow: clip; border-top: 1px solid var(--line); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); gap: 40px; }
.footer-brand { display: grid; gap: 20px; align-content: space-between; }
.footer-brand p { color: var(--ink); font-size: 1.125rem; line-height: 1.3; max-width: 20ch; }
.footer-brand small { display: block; color: var(--dim); font-size: 0.875rem; }
.footer-col { display: grid; gap: 12px; align-content: start; }
.footer-col a { color: var(--muted); font-size: 0.9375rem; width: fit-content; }
.footer-col a:hover { color: var(--ink); text-decoration: none; }
.footer-bottom { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 0.875rem; color: var(--dim); max-width: 80ch; }
/* impeccable-disable-next-line low-contrast: a decorative watermark, aria-hidden, not text to read */
.watermark {
  display: block; margin: 32px 0 -0.22em; padding: 0;
  font-size: clamp(6rem, 27vw, 26rem); line-height: 1; font-weight: 300; letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.045); white-space: nowrap; user-select: none; pointer-events: none;
}

/* ---------- motion: the hero rises once, the sections rise once ---------- */
.js .rise { opacity: 0; translate: 0 14px; animation: rise 820ms var(--ease-out) forwards; }
.js .rise-1 { animation-delay: 120ms; }
.js .rise-2 { animation-delay: 240ms; }
.js .rise-3 { animation-delay: 360ms; }
.js .rise-4 { animation-delay: 520ms; }
.js .rise-5 { animation-delay: 300ms; }
@keyframes rise { to { opacity: 1; translate: 0 0; } }
.js [data-reveal] { opacity: 0; translate: 0 18px; transition: opacity 760ms var(--ease-out), translate 760ms var(--ease-out); }
.js [data-reveal].is-in { opacity: 1; translate: 0 0; }
.still .rise { animation: none; opacity: 1; translate: 0 0; }
.still [data-reveal] { opacity: 1; translate: 0 0; transition: none; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 420px; gap: 48px; }
}
@media (max-width: 1024px) {
  :root { --section-y: 104px; }
  .section-band { padding: 80px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .band { grid-template-columns: 1fr; }
  .band-actions { justify-content: flex-start; }
}
@media (max-width: 900px) {
  :root { --section-y: 96px; }
  .nav-links { display: none; }
  .nav-burger { display: inline-flex; }
  .nav-actions { margin-left: auto; }
  .hero { padding-top: calc(var(--nav-h) + 40px); padding-bottom: 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; align-items: start; }
  .box { max-width: 520px; width: 100%; }
  .facts { grid-template-columns: 1fr; }
  .fact { padding: 20px 0; }
  .fact + .fact { border-left: 0; border-top: 1px solid var(--line); }
  .cards { grid-template-columns: 1fr; max-width: 520px; }
  .ledger { grid-template-columns: 1fr; padding: 32px 24px; gap: 16px; }
  .ledger-eq { padding: 0; }
  .terms { grid-template-columns: 1fr; }
  .terms { padding-top: 24px; }
  .term { padding: 0; }
  .term + .term { border-left: 0; border-top: 1px solid var(--line); margin-top: 24px; padding-top: 24px; }
  .access-form { grid-template-columns: 1fr; padding: 24px; }
  .section-head { margin-bottom: 40px; }
}
@media (max-width: 600px) {
  :root { --gutter: 16px; --nav-h: 68px; --section-y: 80px; }
  .section-band { padding: 64px 0; }
  .nav-actions .btn { padding: 0 18px; }
  .hero { padding-top: calc(var(--nav-h) + 28px); padding-bottom: 48px; }
  .hero-grid { gap: 32px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .fact-value { font-size: 1.5rem; }
  .slot-input, .slot-output { font-size: 1.5rem; }
  .box { padding: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .faq-a p { padding-right: 40px; }
}

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .rise { animation: none; opacity: 1; translate: 0 0; }
  .js [data-reveal] { opacity: 1; translate: 0 0; transition: none; }
  .faq-a, .faq-q .icon, .btn, .tab, .nav { transition: none !important; }
}