/* Partners Connect — landing prototype (Version B · Bold)
   Tokens mirror the Figma file: Color, Spacing and Layout collections. */

:root {
  --near-black: #17191F;
  --cobalt: #2643D8;
  --cobalt-700: #1E36B5;
  --cobalt-300: #8EA2FF;
  --soft-gray: #F2F3F5;
  --white: #FFFFFF;
  --gray-300: #A3A8B5;   /* secondary text on Near Black, 7.38:1 */
  --gray-500: #8A8F9C;   /* field border, 3.3:1 on white */
  --gray-600: #5B6070;   /* secondary text on light, 6.27:1 */
  --line: #D3D3D3;
  --line-dark: #30343E;
  --error: #C4262E;

  --m: clamp(40px, 8.33vw, 120px);   /* page margin, 120 at 1440 */
  --nav-h: 72px;
  --section-y: 128px;
  --notch: 16px;
  --step: 16px;

  --h1: clamp(48px, 5vw, 72px);
  --h2: clamp(40px, 3.9vw, 56px);

  --ease-out: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  background: var(--near-black);
  color: var(--near-black);
  font-family: Figtree, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 24px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, canvas { display: block; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }
ul, ol { list-style: none; padding: 0; }
p, li { text-wrap: pretty; }   /* no one-word last lines where supported; short words are bound with   in the markup */

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 100;
  padding: 12px 16px; background: var(--white); color: var(--near-black);
  font-weight: 700; transform: translateY(-200%);
}
.skip-link:focus { transform: none; }

.wrap { width: min(100% - 2 * var(--m), 1200px); margin-inline: auto; }

/* Focus: 2 px gap + 2 px Cobalt ring, as in Button/Focus. Lighter ring on dark. */
:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 2px; }
.on-dark :focus-visible { outline-color: var(--cobalt-300); }

/* ---------- Type ---------- */
.h1, .h2, .display {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.h1 { font-size: var(--h1); line-height: 1; }
.h1 em { font-style: normal; color: var(--cobalt-300); }
.h2 { font-size: var(--h2); line-height: 1; }
.display { font-size: var(--h1); line-height: 1; }
/* Brand-book p.07 / p.09: caps header with Cobalt to Near Black gradient. */
.h2--gradient {
  width: fit-content;
  background: linear-gradient(90deg, var(--cobalt), var(--near-black));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.lead { font-size: 18px; line-height: 28px; }
.overline {
  font-size: 12px; line-height: 16px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  height: 52px; padding: 0 40px;
  background: var(--cobalt); color: var(--white);
  border: 0; border-radius: 0; cursor: pointer;
  font-size: 15px; line-height: 20px; font-weight: 800;
  letter-spacing: 0.05em; text-transform: uppercase; text-decoration: none;
  white-space: nowrap;
  transition: background-color .15s var(--ease-out), box-shadow .15s var(--ease-out), transform .15s var(--ease-out);
}
/* Hover: the button rises one step, like the form card. */
.btn:hover { background: var(--cobalt-700); box-shadow: 4px 4px 0 var(--cobalt-300); transform: translate(-2px, -2px); }
.btn:active { box-shadow: none; transform: none; }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--soft-gray), 0 0 0 4px var(--cobalt); transform: none; }
.on-dark .btn:focus-visible { box-shadow: 0 0 0 2px var(--near-black), 0 0 0 4px var(--cobalt-300); }
.btn--block { width: 100%; }
.btn--sm { height: 44px; padding: 0 24px; }
.btn__loader { position: absolute; inset: 0; display: none; align-items: center; justify-content: center; gap: 4px; }
.btn__loader i { width: 6px; height: 6px; background: var(--white); animation: pixel 0.9s steps(1) infinite; }
.btn__loader i:nth-child(2) { animation-delay: .3s; }
.btn__loader i:nth-child(3) { animation-delay: .6s; }
@keyframes pixel { 0%, 66% { opacity: .25; } 33% { opacity: 1; } }
.btn.is-loading { cursor: progress; }
.btn.is-loading .btn__label { visibility: hidden; }
.btn.is-loading .btn__loader { display: flex; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--nav-h);
  background: var(--near-black); color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background-color .2s var(--ease-out), color .2s var(--ease-out), border-color .2s;
}
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.lockup { display: flex; align-items: center; gap: 16px; text-decoration: none; }
.lockup svg { width: 114px; height: 32px; }
.lockup__divider { width: 1px; height: 24px; background: var(--line-dark); transition: background-color .2s; }
.lockup__by { font-size: 13px; line-height: 18px; color: var(--gray-300); transition: color .2s; white-space: nowrap; }
.nav__cta { opacity: 0; transform: translateY(-4px); pointer-events: none; transition: opacity .2s var(--ease-out), transform .2s var(--ease-out); }
.nav.is-scrolled { background: var(--white); color: var(--near-black); border-bottom-color: var(--line); }
.nav.is-scrolled .lockup__divider { background: var(--line); }
.nav.is-scrolled .lockup__by { color: var(--gray-600); }
body.cta-on .nav.is-scrolled .nav__cta { opacity: 1; transform: none; pointer-events: auto; }

/* ---------- Pattern layers ---------- */
.pattern { position: absolute; left: 0; width: 100%; pointer-events: none; }
.edge { position: absolute; left: 0; width: 100%; pointer-events: none; z-index: 2; }

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--near-black); color: var(--white);
  padding: calc(var(--nav-h) + 64px) 0 96px;
}
.hero .pattern { top: 16px; height: 922px; z-index: -1; }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 620px) 520px;
  justify-content: space-between; align-items: start; gap: 48px;
}
.hero__intro { padding-top: 24px; display: grid; gap: 28px; }
.hero__intro .lead { max-width: 520px; color: var(--gray-300); }

/* ---------- Registration form ---------- */
.form-card :focus-visible { outline-color: var(--cobalt); }
.on-dark .form-card .btn:focus-visible,
.nav:not(.on-dark) .btn:focus-visible { box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--cobalt); }
.form-card {
  position: relative; display: grid;   /* form and success share one cell: the card never changes height */
  background: var(--white); color: var(--near-black);
  padding: 48px;
  margin: 0 var(--step) var(--step) 0;
  box-shadow: var(--step) var(--step) 0 var(--cobalt-300);   /* raised one step */
  scroll-margin-top: calc(var(--nav-h) + 24px);
}
.form-card::before {                   /* the P notch */
  content: ""; position: absolute; top: 0; left: 0;
  width: var(--notch); height: var(--notch); background: var(--near-black);
}
.form { display: grid; gap: 24px; }
.form, .success { grid-area: 1 / 1; min-width: 0; }
.form__head { display: grid; gap: 8px; }
.form__title {
  font-size: 22px; line-height: 26px; font-weight: 900;
  letter-spacing: 0.02em; text-transform: uppercase;
}
.form__sub { color: var(--gray-600); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.field { display: grid; gap: 8px; align-content: start; min-width: 0; }
.field__label, .field legend { font-size: 14px; line-height: 20px; font-weight: 600; padding: 0; }
.field__msg { font-size: 13px; line-height: 18px; color: var(--error); }
.field__msg:empty { display: none; }
.input {
  width: 100%; height: 52px; padding: 0 16px;
  background: var(--white); color: var(--near-black);
  border: 1px solid var(--gray-500); border-radius: 0;
  font-size: 16px; line-height: 24px;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none; appearance: none;
}
.input::placeholder { color: var(--gray-600); opacity: 1; }
.input:hover { border-color: var(--near-black); }
.input:focus, .input:focus-visible { outline: none; border-color: var(--cobalt); box-shadow: inset 0 0 0 1px var(--cobalt); }
.input[aria-invalid="true"] { border-color: var(--error); box-shadow: inset 0 0 0 1px var(--error); }

/* Country select: trigger + searchable listbox */
.select { position: relative; }
.select__trigger { display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; cursor: pointer; }
.select__trigger[aria-expanded="true"] { border-color: var(--cobalt); box-shadow: inset 0 0 0 1px var(--cobalt); }
.select__value { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.select__value.is-placeholder { color: var(--gray-600); }
.select__chevron { flex: none; width: 14px; height: 8px; transition: transform .2s var(--ease-out); }
.select__trigger[aria-expanded="true"] .select__chevron { transform: rotate(180deg); }
.select__panel {
  position: absolute; z-index: 20; top: calc(100% + 8px); left: 0; right: 0;
  background: var(--white); border: 1px solid var(--gray-500);
  box-shadow: 0 12px 32px rgba(23, 25, 31, .14);
  padding: 8px 0;
}
.select__search {
  width: 100%; height: 44px; padding: 0 16px; border: 0; border-bottom: 1px solid var(--line);
  border-radius: 0; font-size: 16px; background: var(--white);
}
.select__search::placeholder { color: var(--gray-600); opacity: 1; }
.select__search:focus { outline: none; border-bottom-color: var(--cobalt); }
.select__list { position: relative; max-height: 220px; overflow-y: auto; overscroll-behavior: contain; }
.select__option { padding: 10px 16px; cursor: pointer; }
.select__option.is-active { background: var(--soft-gray); }
.select__option[aria-selected="true"] { font-weight: 600; }
.select__empty { padding: 10px 16px; color: var(--gray-600); }

/* Role chips */
fieldset.field { border: 0; padding: 0; min-width: 0; }
fieldset.field legend { margin-bottom: 8px; float: left; width: 100%; }
fieldset.field legend + * { clear: both; }
.chips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.chip span {
  display: flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 12px;
  border: 1px solid var(--gray-500); background: var(--white);
  font-size: 15px; line-height: 20px; font-weight: 700;
  transition: background-color .15s, color .15s, border-color .15s;
  pointer-events: none;
}
.chip:hover span { border-color: var(--near-black); }
.chip input:checked + span { background: var(--near-black); border-color: var(--near-black); color: var(--white); }
.chip input:focus-visible + span { outline: 2px solid var(--cobalt); outline-offset: 2px; }
.chips[aria-invalid="true"] .chip span { border-color: var(--error); }

/* Consent */
.consent { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
.consent input { position: absolute; opacity: 0; width: 22px; height: 22px; margin: 1px 0 0; }
.consent__box {
  flex: none; width: 22px; height: 22px; margin-top: 1px;
  border: 1.5px solid var(--gray-500); background: var(--white);
  display: grid; place-items: center;
  transition: background-color .15s, border-color .15s;
}
.consent__box svg { width: 14px; height: 10px; opacity: 0; }
.consent input:checked + .consent__box { background: var(--cobalt); border-color: var(--cobalt); }
.consent input:checked + .consent__box svg { opacity: 1; }
.consent input:focus-visible + .consent__box { outline: 2px solid var(--cobalt); outline-offset: 2px; }
.consent input[aria-invalid="true"] + .consent__box { border: 2px solid var(--error); }
.consent a { color: var(--cobalt); text-underline-offset: 2px; }

/* Success */
.success { display: grid; gap: 24px; align-content: center; }
.success:focus { outline: none; }
.success__mark { width: 56px; height: 56px; background: var(--cobalt); display: grid; place-items: center; }
.success__mark svg { width: 26px; height: 18px; }
.success__body { color: var(--gray-600); }
.success__body strong { color: var(--near-black); font-weight: 600; overflow-wrap: anywhere; }
.success__reset {
  justify-self: start; padding: 0; border: 0; background: none; cursor: pointer;
  font-size: 13px; line-height: 18px; color: var(--gray-600); text-decoration: underline; text-underline-offset: 2px;
}
.success__reset:hover { color: var(--near-black); }
.form-card.is-done .form,
.form-card:not(.is-done) .success { visibility: hidden; }
.form-card.is-done .success { animation: fade-up .4s var(--ease-out); }
@keyframes fade-up { from { opacity: 0; transform: translateY(8px); } }

/* ---------- Section 1: We're Partners Connect ---------- */
.about { position: relative; background: var(--white); padding: calc(var(--section-y) + 64px) 0 var(--section-y); }
.about .edge { top: 0; height: 96px; }
/* 486 / 588 at 1440 with a wide gutter between the columns */
.about__grid { display: grid; grid-template-columns: minmax(0, 486fr) minmax(0, 588fr); column-gap: 10.5%; }
.about__intro { display: grid; gap: 24px; align-content: start; }
.about__intro .lead { color: var(--gray-600); max-width: 588px; }
.about__intro .lead strong { color: var(--near-black); font-weight: 700; }
.pillars { display: grid; gap: 56px; align-content: start; padding-top: 4px; }
.pillar { border-top: 1px solid var(--line); padding-top: 20px; display: grid; gap: 8px; }
/* Desktop: OUR GOAL sits on the heading's cap line, the Our vision rule on the intro's first line. */
.pillar:first-child { border-top: 0; padding-top: 0; }
.pillar .overline { color: var(--cobalt); }
.pillar p { font-size: 24px; line-height: 30px; font-weight: 700; max-width: 435px; }

/* ---------- Marquee ---------- */
.marquee {
  position: relative; display: flex; align-items: center;
  height: 64px; background: var(--cobalt); color: var(--white); overflow: hidden;
}
.marquee__viewport { flex: 1; overflow: hidden; height: 100%; display: flex; align-items: center; }
.marquee__track { display: flex; flex: none; animation: run 18s linear infinite; }
.is-motion-paused .marquee__track { animation-play-state: paused; }
.marquee__seq {
  display: flex; align-items: center; flex: none; gap: 32px; padding-right: 32px;
  font-size: 20px; line-height: 24px; font-weight: 800; letter-spacing: 0.04em;
  text-transform: uppercase; white-space: nowrap;
}
.marquee__mark { flex: none; width: 13px; height: 18px; }
@keyframes run { to { transform: translateX(-50%); } }
.motion-toggle {
  flex: none; width: 64px; height: 64px; display: grid; place-items: center;
  background: var(--cobalt-700); color: var(--white); border: 0; cursor: pointer;
}
.motion-toggle svg { width: 20px; height: 20px; }
.motion-toggle:hover { background: var(--near-black); }
.motion-toggle:focus-visible { outline: 2px solid var(--white); outline-offset: -6px; }
.motion-toggle .icon-play { display: none; }
.is-motion-paused .motion-toggle .icon-play { display: block; }
.is-motion-paused .motion-toggle .icon-pause { display: none; }

/* ---------- Section 3: What's in it for you ---------- */
.benefits { background: var(--soft-gray); padding: var(--section-y) 0; }
.benefits__head { display: grid; gap: 24px; margin-bottom: 64px; }
.benefits__head .lead { color: var(--gray-600); max-width: 588px; }
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bento__wide { grid-column: span 2; }
.card {
  position: relative; height: 100%;
  background: var(--white); padding: 48px;
  min-height: 318px;
  transition: background-color .2s var(--ease-out), color .2s var(--ease-out), box-shadow .2s var(--ease-out), transform .2s var(--ease-out);
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: var(--notch); height: var(--notch); background: var(--soft-gray);
}
.card .overline { color: var(--cobalt); margin-bottom: 40px; }
.card h3 { font-size: 24px; line-height: 30px; font-weight: 700; margin-bottom: 12px; }
.card__lead { font-weight: 700; font-style: italic; color: var(--cobalt); margin-bottom: 4px; }
.card__body { color: var(--gray-600); max-width: 288px; }
.bento__wide .card__body { max-width: 544px; }
.card .overline, .card__lead, .card__body { transition: color .2s var(--ease-out); }
.card--accent { background: var(--cobalt); color: var(--white); }
.card--accent .overline, .card--accent .card__lead, .card--accent .card__body { color: var(--white); }
@media (hover: hover) {
  .card:hover { background: var(--cobalt); color: var(--white); box-shadow: 8px 8px 0 var(--cobalt-700); transform: translate(-4px, -4px); }
  .card:hover .overline, .card:hover .card__lead, .card:hover .card__body { color: var(--white); }
  .card--accent:hover { box-shadow: 8px 8px 0 var(--near-black); }
}

/* ---------- Section 4: How it works ---------- */
.how { position: relative; overflow: hidden; background: var(--cobalt); color: var(--white); padding: var(--section-y) 0 0; }
.how__head { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; margin-bottom: 72px; }
.how__head .lead { max-width: 588px; }
.how__head .lead strong { font-weight: 700; }   /* emphasis from the brief */
.stair { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; align-items: end; }
.stair li {
  position: relative; background: var(--white); color: var(--near-black);
  padding: 28px 24px; display: grid; gap: 8px; align-content: start;
}
.stair li::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: var(--notch); height: var(--notch); background: var(--cobalt);
}
.stair li:nth-child(1) { height: 260px; }
.stair li:nth-child(2) { height: 330px; }
.stair li:nth-child(3) { height: 400px; }
.stair li:nth-child(4) { height: 470px; }
.stair h3 { font-size: 24px; line-height: 30px; font-weight: 700; }
.stair p { color: var(--gray-600); }
.how .edge { bottom: 0; height: 96px; }
.how :focus-visible { outline-color: var(--white); }
.stair__dots { display: none; }
/* Steps rise one after another when the section comes into view. */
.js .stair li { transform: translateY(var(--rise, 0)); transition: transform .7s var(--ease-out); }
.js .stair:not(.is-in) li { --rise: 120px; }
.stair li:nth-child(2) { transition-delay: .08s; }
.stair li:nth-child(3) { transition-delay: .16s; }
.stair li:nth-child(4) { transition-delay: .24s; }

/* ---------- Section 5: Join ---------- */
.join {
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--near-black); color: var(--white);
  min-height: 622px; padding: var(--section-y) 0 0;
}
.join__inner { display: grid; gap: 24px; justify-items: start; }
.join .lead { color: var(--gray-300); max-width: 520px; margin-bottom: 40px; }
/* The connected N in pixels: top on the heading's cap line, standing on the section floor. */
.join__mark {
  position: absolute; z-index: -1; bottom: 0;
  right: max(var(--m), calc((100% - 1200px) / 2));
  height: 486px; aspect-ratio: 175.18 / 237.73;
  pointer-events: none;
}

/* ---------- Footer ---------- */
.footer { background: var(--near-black); color: var(--white); border-top: 1px solid var(--line-dark); padding: 64px 0 40px; }
.footer__top { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer__brand { display: grid; gap: 16px; max-width: 380px; }
.footer__brand svg { width: 129px; height: 36px; }
.footer__brand p { color: var(--gray-300); }
.footer__contact { display: grid; gap: 16px; }
.footer__contact .overline { color: var(--gray-300); }
.socials { display: flex; gap: 8px; }
.socials a {
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--line-dark); transition: background-color .2s, border-color .2s;
}
.socials a { transition: background-color .15s var(--ease-out), border-color .15s var(--ease-out), transform .15s var(--ease-out); }
.socials a:hover { background: var(--cobalt); border-color: var(--cobalt); transform: translateY(-2px); }
.socials svg { width: 20px; height: 20px; fill: currentColor; }
.mail { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; line-height: 20px; font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line-dark); }
.mail:hover { text-decoration-color: currentColor; }
.mail svg { width: 20px; height: 20px; fill: currentColor; }
.footer__legal {
  display: flex; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line-dark);
  font-size: 13px; line-height: 18px; color: var(--gray-300);
}
.footer__legal ul { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__legal a { text-decoration: none; }
.footer__legal a:hover { color: var(--white); text-decoration: underline; }
.footer__note { margin-top: 16px; font-size: 13px; line-height: 18px; color: var(--gray-300); }

/* ---------- Sticky CTA bar (mobile) ---------- */
.sticky-cta {
  position: fixed; inset: auto 0 0; z-index: 40; display: none;
  background: var(--white); border-top: 1px solid var(--line);
  box-shadow: 0 -4px 16px rgba(17, 19, 24, .08);
  padding: 12px 20px calc(12px + env(safe-area-inset-bottom));
  transform: translateY(110%); transition: transform .25s var(--ease-out);
}
body.cta-on:not(.join-in) .sticky-cta { transform: none; }

/* ---------- Tablet ---------- */
@media (max-width: 1099px) {
  :root { --section-y: 96px; }
  .hero__grid { grid-template-columns: 1fr; gap: 48px; }
  .hero__intro { max-width: 720px; }
  .hero .form-card { max-width: 560px; }
  .hero { padding-bottom: 200px; }
  .hero .pattern { top: auto; bottom: 0; height: 360px; }
  .about__grid, .how__head { grid-template-columns: 1fr; gap: 40px; }
  .pillars { gap: 32px; padding-top: 0; }
  .pillar:first-child { border-top: 1px solid var(--line); padding-top: 20px; }
  .pillar p { max-width: 588px; }
  .bento__wide .card__body { max-width: 420px; }
  .bento { grid-template-columns: 1fr 1fr; }
  .bento__wide { grid-column: auto; }
  .bento__last { grid-column: span 2; }
  .card__body { max-width: 420px; }
  /* Swipe the stair: the steps keep climbing left to right and scroll sideways. */
  .stair {
    display: flex; gap: 12px; align-items: flex-end;
    margin-inline: calc(-1 * var(--m)); padding-left: var(--m);
    overflow-x: auto; overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory; scroll-padding-left: var(--m);
    scrollbar-width: none;
  }
  .stair::-webkit-scrollbar { display: none; }
  .stair::after { content: ""; flex: 0 0 calc(var(--m) - 12px); }
  .stair li { flex: none; width: 236px; scroll-snap-align: start; }
  .stair li:nth-child(1) { height: 180px; }
  .stair li:nth-child(2) { height: 220px; }
  .stair li:nth-child(3) { height: 260px; }
  .stair li:nth-child(4) { height: 300px; }
  .js .stair li { transform: none; transition: none; }
  .stair__dots { display: flex; gap: 8px; margin-top: 40px; padding-bottom: 104px; }
  .stair__dots i { width: 8px; height: 8px; background: var(--white); opacity: .32; transition: opacity .2s; }
  .stair__dots i.is-current { opacity: 1; }
  .join { min-height: 0; padding-bottom: 300px; }
  .join__mark { height: 265px; }
}

/* ---------- Mobile ---------- */
@media (max-width: 767px) {
  :root {
    --m: 20px; --nav-h: 60px; --section-y: 72px;
    --notch: 12px; --step: 12px;
    --h1: 40px; --h2: 32px;
  }
  body { padding-bottom: 0; }
  .lockup { gap: 12px; }
  .lockup svg { width: 93px; height: 26px; }
  .lockup__divider { height: 20px; }
  .lockup__by { font-size: 12px; }
  .nav__cta { display: none; }
  .h1, .display { line-height: 42px; }
  .h2 { line-height: 34px; }
  .lead { font-size: 17px; line-height: 26px; }
  .hero { padding: calc(var(--nav-h) + 24px) 0 176px; }
  .hero__intro { padding-top: 0; gap: 16px; }
  .hero__grid { gap: 32px; }
  .form-card { padding: 24px; }
  .form__row { grid-template-columns: 1fr; gap: 24px; }
  .chips { grid-template-columns: repeat(2, 1fr); }
  .about { padding-top: 128px; }
  .about__grid { gap: 40px; }
  .about__intro { gap: 16px; }
  .about .edge { height: 64px; }
  .pillars { gap: 28px; }
  .pillar p { font-size: 20px; line-height: 26px; }
  .benefits__head { gap: 16px; margin-bottom: 40px; }
  .bento { grid-template-columns: 1fr; gap: 16px; }
  .bento__last { grid-column: auto; }
  .card { padding: 24px; min-height: 0; }
  .card .overline { margin-bottom: 24px; }
  .card h3 { font-size: 20px; line-height: 26px; }
  .how__head { gap: 16px; margin-bottom: 40px; }
  .stair li { padding: 24px 20px; min-height: 106px; }
  .stair h3 { font-size: 20px; line-height: 26px; }
  .how .edge { height: 64px; }
  .join { padding-bottom: 300px; }
  .join__inner { gap: 16px; }
  .join .lead { margin-bottom: 24px; }
  .join .btn { width: 100%; }
  .footer { padding: 48px 0 calc(32px + 76px + env(safe-area-inset-bottom)); }
  .footer__top { flex-direction: column; gap: 32px; }
  .footer__legal { margin-top: 32px; flex-direction: column; }
  .sticky-cta { display: block; }
  .marquee__seq { font-size: 18px; gap: 24px; padding-right: 24px; }
  .motion-toggle { width: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
  .motion-toggle { display: none; }
  .js .stair li { transform: none; transition: none; }
  .card, .card:hover, .btn:hover, .socials a:hover { transform: none; }
  .btn__loader i { animation-duration: 1.8s; }
}