/* FormShark landing page — Graphite palette.
   These values mirror `GraphiteInk` in lib/design_system/graphite.dart, which is
   the single source of truth. Change them there first, then port here. */

:root {
  /* Fixed colors for the approved white-canvas artwork, from GraphiteInk. */
  --hero-paper: #FFFFFF;
  --hero-ink: #080808;
  --hero-accent: #1F4FFF;
  --bg: #FFFFFF;
  --bg-sunk: #FAFAFA;
  --surface: #FFFFFF;
  --surface-2: #F7F7F7;
  --border: #E3E3E3;
  --border-strong: #D1D1D1;
  --ink: #0A0A0A;
  --ink-hi: #000000;
  --ink-2: #3D3D3D;
  --ink-3: #707070;
  --ink-4: #9E9E9E;
  --accent: #1F4FFF;
  --accent-hi: #1540D6;
  --accent-ink: #FFFFFF;
  --accent-tint: #E6ECFF;
  --ok: #0E7A43;
  --ok-tint: #E2F2E8;
  /* --warn is a signal fill only; anything legible uses --warn-ink. */
  --warn: #F59E0B;
  --warn-ink: #3D3D3D;
  --warn-tint: #FEF3E2;
  --err: #C22A2A;
  --err-tint: #FBE4E3;
  --photo-ink: #080808;
  --on-photo: #FAFAFA;
  /* dark sections (hero photo, CTA, footer) — mirrors GraphitePalette.dark */
  --dark-surface: #121212;
  --dark-surface-2: #191919;
  --dark-ink-2: #C4C4C4;
  --dark-accent: #6E93FF;
  --dark-ink: #F5F5F5;
  --dark-ink-3: #8A8A8A;
  --dark-ink-4: #5C5C5C;
  --dark-border: #2A2A2A;
  --dark-border-strong: #3A3A3A;
  --dark-hover: #1F1F1F;

  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --gutter: 64px;
  --max: 1312px;

  --font: 'Instrument Sans', ui-sans-serif, system-ui, -apple-system,
    'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hi); text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--surface); color: var(--ink);
  padding: 12px 18px; border-radius: 0 0 var(--r-md) 0;
}
.skip:focus { left: 0; }

.wrap { max-width: var(--max); margin: 0 auto; }
.sec { padding: 104px var(--gutter); }
section[id] { scroll-margin-top: 84px; }
#sign-in { scroll-margin-top: 108px; } /* clear the fixed header when a "Sign in" link lands here */
.sec--sunk { background: var(--bg-sunk); border-block: 1px solid var(--border); }

.eyebrow {
  font-size: 11.5px; letter-spacing: .16em; font-weight: 500;
  color: var(--ink-3); text-transform: uppercase; margin: 0;
}
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.035em; line-height: 1.06; }
h2 { font-size: clamp(32px, 3.4vw, 48px); letter-spacing: -.038em; }
h3 { font-size: 26px; letter-spacing: -.022em; line-height: 1.15; }
.lede { margin: 0; font-size: 18px; line-height: 1.6; color: var(--ink-2); text-wrap: pretty; }
.body { margin: 0; font-size: 15px; line-height: 1.62; color: var(--ink-2); text-wrap: pretty; }
.small { margin: 0; font-size: 13px; line-height: 1.55; color: var(--ink-3); }

.stack { display: flex; flex-direction: column; }
.g8 { gap: 8px } .g10 { gap: 10px } .g12 { gap: 12px } .g16 { gap: 16px }
.g18 { gap: 18px } .g20 { gap: 20px } .g24 { gap: 24px } .g40 { gap: 40px }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 24px; border-radius: var(--r-sm);
  font: inherit; font-size: 14.5px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer;
  text-decoration: none; width: 100%;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn--accent { background: var(--accent); color: var(--accent-ink); }
.btn--accent:hover { background: var(--accent-hi); color: var(--accent-ink); }
.btn--dark { background: var(--ink); color: var(--bg); }
.btn--dark:hover { background: var(--ink-hi); color: var(--bg); }
.btn--ghost { background: var(--surface); color: var(--ink); border-color: var(--border-strong); }
.btn--ghost:hover { background: var(--surface-2); color: var(--ink); }
.btn--light { background: var(--on-photo); color: var(--ink); }
.btn--outline-dark { background: transparent; color: var(--on-photo); border-color: var(--dark-border-strong); }
.btn--outline-dark:hover { background: var(--dark-hover); color: var(--on-photo); }
.btn[disabled] { opacity: .55; cursor: progress; }
.btn--auto { width: auto; }

.chip {
  display: inline-flex; align-items: center; gap: 7px;
  min-height: 34px; padding: 0 13px;
  border: 1px solid var(--border); border-radius: var(--r-sm);
  background: var(--surface); font-size: 13px; color: var(--ink-2);
}

/* ---------------------------------------------------------------- header */

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 20; height: 84px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gutter);
  border-bottom: 1px solid rgba(250, 250, 248, .16);
  transition: background-color .2s ease, border-color .2s ease;
}
.site-header.is-solid {
  background: var(--bg); border-bottom-color: var(--border);
  box-shadow: 0 1px 3px rgba(22, 22, 21, .06);
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 600; font-size: 16px; color: var(--on-photo); }
.site-header.is-solid .brand { color: var(--ink); }
.brand svg { flex: none; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 14px; }
.site-nav a { color: rgba(250, 250, 248, .82); }
.site-header.is-solid .site-nav a { color: var(--ink-2); }
.site-nav a:hover { color: var(--on-photo); text-decoration: none; }
.site-header.is-solid .site-nav a:hover { color: var(--ink); }
.site-nav .nav-cta {
  display: inline-flex; align-items: center; height: 40px; padding: 0 18px;
  border-radius: var(--r-sm); background: var(--bg);
  font-size: 14px; font-weight: 500; color: var(--ink);
}
.site-nav .nav-cta:hover { background: var(--surface); color: var(--ink); }
.site-header.is-solid .site-nav .nav-cta { background: var(--ink); color: var(--bg); }
.site-header.is-solid .site-nav .nav-cta:hover { background: var(--ink-hi); color: var(--bg); }
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 36px; height: 36px; padding: 0;
  background: none; border: 0; cursor: pointer; color: var(--on-photo);
}
.site-header.is-solid .nav-toggle { color: var(--ink); }

/* ------------------------------------------------------------------ hero */

.hero { position: relative; min-height: 900px; display: flex; align-items: center; background: var(--photo-ink); overflow: hidden; }
.hero__photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
.hero__scrim, .hero__scrim-v { position: absolute; inset: 0; }
.hero__scrim {
  background: linear-gradient(90deg,
    rgba(11,11,10,.90) 0%, rgba(11,11,10,.84) 12%, rgba(11,11,10,.70) 24%,
    rgba(11,11,10,.42) 34%, rgba(11,11,10,.12) 42%, rgba(11,11,10,0) 50%);
}
.hero__scrim-v {
  background: linear-gradient(180deg,
    rgba(11,11,10,.50) 0%, rgba(11,11,10,0) 15%,
    rgba(11,11,10,0) 82%, rgba(11,11,10,.45) 100%);
}
.hero__inner {
  position: relative; width: 100%; max-width: var(--max); margin: 0 auto;
  padding: 130px var(--gutter) 90px;
  display: grid; grid-template-columns: minmax(0, 700px) 396px;
  justify-content: space-between; align-items: center; gap: 72px;
}
.hero__copy { display: flex; flex-direction: column; gap: 22px; color: var(--on-photo); }
.hero__badge {
  margin: 0; font-size: 11.5px; font-weight: 500; letter-spacing: .16em;
  text-transform: uppercase; color: rgba(250,250,248,.62);
}
.hero h1 {
  font-size: clamp(50px, 6.4vw, 92px); line-height: .98; letter-spacing: -.042em;
  text-shadow: 0 2px 30px rgba(11,11,10,.6);
}
.hero__sub {
  margin: 0; max-width: 44ch; font-size: 17px; line-height: 1.6;
  color: rgba(250,250,248,.84); text-wrap: pretty;
  text-shadow: 0 1px 18px rgba(11,11,10,.7);
}
.hero__stats {
  display: flex; flex-wrap: wrap; gap: 18px 36px; margin-top: 10px;
  padding-top: 24px; border-top: 1px solid rgba(250,250,248,.22);
}
.hero__stat strong { display: block; font-size: 15px; font-weight: 600; letter-spacing: -.02em; text-shadow: 0 1px 16px rgba(11,11,10,.7); }
.hero__stat span { font-size: 12px; color: rgba(250,250,248,.66); }
.hero__foot {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: 30px;
  display: flex; justify-content: space-between; gap: 24px;
  font-size: 12px; color: rgba(250,250,248,.62);
}

/* ------------------------------------------------------------ auth card */

.auth {
  background: var(--surface); border-radius: var(--r-lg); padding: 30px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 48px -12px rgba(11, 11, 10, .45);
  display: flex; flex-direction: column; gap: 24px;
}
.auth h2 { font-size: 21px; letter-spacing: -.025em; }
.auth__divider { display: flex; align-items: center; gap: 14px; color: var(--ink-4); font-size: 12px; }
.auth__divider::before, .auth__divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth label { font-size: 13px; font-weight: 500; color: var(--ink-2); }
.auth input {
  width: 100%; min-height: 48px; padding: 0 14px;
  border: 1px solid var(--border-strong); border-radius: var(--r-sm);
  background: var(--surface); color: var(--ink);
  font: inherit; font-size: 14.5px;
}
.auth input::placeholder { color: var(--ink-4); }
.auth input:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.auth__rule { height: 1px; background: var(--border); border: 0; margin: 0; }
.auth__foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 13px; color: var(--ink-3); }
.auth__msg {
  margin: 0; padding: 10px 12px; border-radius: var(--r-sm);
  font-size: 12px; line-height: 1.45;
  background: var(--warn-tint); color: var(--warn-ink);
}
.auth__msg--error { background: var(--err-tint); color: var(--err); }
[hidden] { display: none !important; }

/* --------------------------------------------------------- use-case strip */

.usecases { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.usecases__label { color: var(--ink-4); }
.usecases ul { display: flex; flex-wrap: wrap; gap: 10px 12px; list-style: none; margin: 0; padding: 0; }

/* ------------------------------------------------------------ how it works */

#how h2 { font-size: clamp(34px, 4.2vw, 58px); letter-spacing: -.04em; }
.steps { display: flex; flex-direction: column; gap: 88px; margin-top: 88px; }
.step { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px; align-items: center; }
.step__copy { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.step__copy ul { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 4px 0 0; padding: 0; }
.step--flip .step__visual { order: -1; }
.step__n {
  margin: 0; display: flex; align-items: center; gap: 12px;
  font-size: 11.5px; font-weight: 500; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent);
}
.step__n span {
  font-size: clamp(32px, 3.4vw, 44px); font-weight: 600;
  letter-spacing: -.04em; line-height: 1; color: var(--border);
}
.step__copy h3 { font-size: clamp(24px, 2.2vw, 30px); letter-spacing: -.03em; line-height: 1.14; }
.step__copy .chip {
  min-height: 32px; padding: 0 12px; font-size: 12.5px;
  background: var(--bg-sunk); border-color: transparent;
}

/* miniature product UI, drawn in CSS from the same tokens as the app */
.ui {
  background: var(--bg); border: 1px solid var(--border-strong);
  border-radius: 12px; overflow: hidden;
  box-shadow: 0 18px 44px rgba(22,22,21,.10);
}
.ui__bar {
  height: 34px; display: flex; align-items: center; gap: 6px; padding: 0 12px;
  background: var(--bg-sunk); border-bottom: 1px solid var(--border);
}
.ui__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border-strong); }
.ui__label { margin-left: 6px; font-size: 10px; letter-spacing: .06em; color: var(--ink-4); }
.ui__body { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.ui__split { display: grid; grid-template-columns: 132px minmax(0, 1fr); }
.ui__rail {
  padding: 14px 12px; background: var(--surface-2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 7px;
}

.fld {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: 10px 12px;
  display: flex; flex-direction: column; gap: 6px;
}
.fld--focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.fld__meta { font-size: 10px; letter-spacing: .07em; color: var(--ink-4); }
.fld__meta--accent { color: var(--accent); }
.fld__title { font-size: 12px; font-weight: 500; color: var(--ink); }
.fld__opts { display: flex; flex-wrap: wrap; gap: 6px; }

.pill {
  display: inline-flex; align-items: center; min-height: 22px; padding: 0 8px;
  border: 1px solid var(--border); border-radius: 5px;
  background: var(--surface-2); font-size: 10px; color: var(--ink-3);
}
.pill--block { width: 100%; }
.pill--accent { border-color: var(--accent); background: var(--accent-tint); color: var(--accent); }
.pill--picked {
  border: 1.5px solid var(--accent); background: var(--accent-tint);
  color: var(--ink); font-weight: 500;
}

.rule-note {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 11px; border-radius: var(--r-sm);
  background: var(--warn-tint); font-size: 11.5px; color: var(--warn-ink);
}
.sync-note {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 11px; border-radius: var(--r-sm);
  background: var(--ok-tint); font-size: 11px; color: var(--ok);
}

.phone {
  width: 286px; margin: 0 auto; padding: 12px;
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 30px; box-shadow: 0 24px 54px rgba(22,22,21,.14);
}
.phone__screen { border: 1px solid var(--border); border-radius: 20px; overflow: hidden; }
.phone__offline {
  display: flex; align-items: center; gap: 8px; padding: 9px 12px;
  background: var(--warn-tint); border-bottom: 1px solid var(--border);
  font-size: 11px; font-weight: 500; color: var(--warn-ink);
}
.phone__offline i { width: 7px; height: 7px; border-radius: 50%; background: var(--warn); flex: none; }
.phone__body { padding: 14px; display: flex; flex-direction: column; gap: 10px; background: var(--bg); }

.stat-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.stat { padding: 12px; }
.stat dt { font-size: 10px; letter-spacing: .07em; color: var(--ink-4); }
.stat dd { margin: 3px 0 0; font-size: 19px; font-weight: 600; letter-spacing: -.02em; }

.mini-table { width: 100%; border-collapse: collapse; font-size: 11px; }
.mini-table th, .mini-table td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.mini-table tr:last-child td { border-bottom: 0; }
.mini-table th { font-weight: 400; letter-spacing: .06em; color: var(--ink-4); }
.mini-table td { color: var(--ink-2); }
.mini-table td:nth-child(2) { color: var(--ink-3); }
.mini-table td:nth-child(3) { color: var(--ok); }

/* --------------------------------------------------------- question types */

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 72px; align-items: start; }
.typelist {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px;
  list-style: none; margin: 0; padding: 0;
}
.typecard {
  display: flex; align-items: center; gap: 11px; padding: 16px;
  border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--surface); font-size: 14px; font-weight: 500; color: var(--ink);
}
.typecard svg { flex: none; color: var(--accent); }

/* -------------------------------------------------------------- card grid */

.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.grid3 > li { list-style: none; }
.infocard { padding: 26px; display: flex; flex-direction: column; gap: 9px; }
.infocard h3 { font-size: 18px; letter-spacing: -.022em; }
.infocard__icon { color: var(--accent); margin-bottom: 7px; }

.tmpl { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.tmpl__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.tmpl h3 { font-size: 19px; letter-spacing: -.024em; line-height: 1.2; }
.tmpl__category {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--ink-2); font-size: 12px; font-weight: 500; line-height: 1.5;
}
.tmpl__category svg { flex: none; }
.tmpl--blank { background: transparent; border-style: dashed; }
.tmpl--blank h3 { color: var(--ink-3); }

/* --------------------------------------------------------------- pricing */

.pricing { display: flex; flex-direction: column; gap: 48px; }
.pricing__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.pricing .lede { max-width: 62ch; }
.toggle {
  display: inline-flex; gap: 4px; padding: 4px;
  background: var(--bg-sunk); border: 1px solid var(--border); border-radius: var(--r-md);
}
.toggle button {
  min-height: 34px; padding: 0 16px; border-radius: var(--r-sm);
  border: 1px solid transparent; background: transparent;
  font: inherit; font-size: 13.5px; color: var(--ink-3); cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
}
.toggle button[aria-pressed="true"] {
  background: var(--surface); border-color: var(--border);
  color: var(--ink); font-weight: 500;
  box-shadow: 0 1px 2px rgba(22, 22, 21, .08);
}
.badge {
  display: inline-flex; align-items: center; min-height: 22px; padding: 0 9px;
  border-radius: 999px; font-size: 10px; font-weight: 500; letter-spacing: .1em;
  background: var(--ink); color: var(--bg);
}
.badge--save {
  min-height: 20px; padding: 0 8px; font-size: 10.5px; letter-spacing: .08em;
  background: var(--ok-tint); color: var(--ok);
}

.plans {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px; width: 100%; max-width: 960px;
}
.plan { padding: 34px; display: flex; flex-direction: column; gap: 20px; }
.plan--pro { border-width: 1.5px; border-color: var(--ink); }
.plan__name { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; letter-spacing: -.015em; }
.plan__price { font-size: clamp(44px, 4vw, 52px); font-weight: 600; letter-spacing: -.042em; line-height: 1; }
.plan__price small { font-size: 14px; font-weight: 400; color: var(--ink-3); letter-spacing: 0; }
.plan .body { font-size: 14px; }
.plan--pro .body { color: var(--ink); font-weight: 500; }
.plan ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.plan li { display: flex; gap: 10px; font-size: 14px; line-height: 1.5; color: var(--ink-2); }
.plan li svg { flex: none; margin-top: 3px; color: var(--ok); }
.plan--pro li svg { color: var(--accent); }
.plan .is-key { color: var(--ink); font-weight: 600; }
.plan .btn { margin-top: auto; }

/* ------------------------------------------------------------------- faq */

.faq { display: grid; grid-template-columns: 380px minmax(0, 1fr); gap: 80px; align-items: start; }
.faq h2 { font-size: clamp(32px, 3.2vw, 44px); }
.faq__list { display: flex; flex-direction: column; gap: 10px; }
.faq__item { padding: 24px 26px; display: flex; flex-direction: column; gap: 9px; }
.faq__item h3 { font-size: 16.5px; letter-spacing: -.02em; line-height: 1.2; }
.faq__item p { font-size: 14.5px; line-height: 1.62; }

/* ------------------------------------------------------------- cta, footer */

.cta { background: var(--ink); color: var(--dark-ink); padding: 100px var(--gutter); }
.cta__inner { display: flex; align-items: center; justify-content: space-between; gap: 60px; }
.cta h2 { font-size: clamp(34px, 3.9vw, 52px); letter-spacing: -.04em; color: var(--dark-ink); }
.cta p { font-size: 17px; color: rgba(250,250,248,.72); }
.cta__buttons { display: flex; gap: 12px; flex: none; }
.cta__buttons .btn { width: auto; padding: 0 26px; }
.cta .btn { min-height: 52px; font-size: 15px; }

.site-footer { background: var(--photo-ink); color: var(--dark-ink-3); padding: 56px var(--gutter) 40px; font-size: 14px; }
.site-footer .brand { color: var(--dark-ink); }
.footer__cols { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer__brand { display: flex; flex-direction: column; gap: 14px; max-width: 300px; }
.footer__brand p { margin: 0; }
.site-footer h2 { font-size: 10.5px; font-weight: 500; letter-spacing: .1em; color: var(--dark-ink-4); margin-bottom: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.site-footer a { color: var(--dark-ink-3); }
.site-footer a:hover { color: var(--dark-ink); }
.stores { display: flex; gap: 8px; }
.stores span { display: inline-flex; align-items: center; min-height: 30px; padding: 0 10px; border: 1px solid var(--dark-border); border-radius: 5px; font-size: 11px; }
.footer__legal {
  display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between;
  border-top: 1px solid var(--dark-border); margin-top: 44px; padding-top: 20px; font-size: 12px;
}

/* ------------------------------------------------------------ breakpoints */

@media (max-width: 1080px) {
  :root { --gutter: 32px; }
  .hero { min-height: 0; }
  .hero__inner { grid-template-columns: minmax(0, 1fr); padding-top: 120px; padding-bottom: 56px; gap: 40px; }
  .hero__scrim { background: linear-gradient(180deg, rgba(11,11,10,.55) 0%, rgba(11,11,10,.35) 40%, rgba(11,11,10,.85) 100%); }
  .hero__foot { display: none; }
  .auth { max-width: 460px; }
  .step, .split, .faq { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .step--flip .step__visual { order: 0; }
  .cta__inner { flex-direction: column; align-items: stretch; }
  .cta__buttons { width: 100%; }
  .footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  :root { --gutter: 20px; }
  .sec { padding: 64px var(--gutter); }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; }
  .site-header.nav-open .site-nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 14px;
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 18px var(--gutter) 22px;
    background: var(--photo-ink); border-bottom: 1px solid rgba(250, 250, 248, .16);
  }
  .site-header.is-solid.nav-open .site-nav { background: var(--bg); border-bottom-color: var(--border); }
  .site-header.nav-open .site-nav .nav-cta { justify-content: center; }
  .auth { padding: 24px; border-radius: var(--r-lg); box-shadow: none; }
  .steps { gap: 44px; margin-top: 44px; }
  .plan { padding: 26px; }
  .pricing { gap: 32px; }
  .pricing__head { gap: 22px; }
  .toggle { width: 100%; }
  .toggle button { flex: 1 1 0; justify-content: center; }
  .cta { padding: 56px var(--gutter); }
  .cta__buttons { flex-direction: column; }
  .cta__buttons .btn { width: 100%; }
  .typelist { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ui__split { grid-template-columns: minmax(0, 1fr); }
  .ui__rail { display: none; }
  .footer__cols { grid-template-columns: minmax(0, 1fr); }
}



/* Running production Flutter widgets, isolated from the signed-in app. */
.product-demo { scroll-margin-top: 100px; min-width: 0; width: 100%; align-self: start; }
.product-demo iframe { display: block; width: 100%; height: 720px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.product-demo__caption { margin: 12px 0 0; font-size: 13px; line-height: 1.5; color: var(--ink-3); }
.product-demo__caption a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 700px) { .product-demo iframe { height: 700px; } }

[data-paid-plan][aria-disabled="true"] { background: var(--surface-2); color: var(--ink-3); border: 1px solid var(--border); cursor: default; pointer-events: none; }