/* 1618 Robotics web pages (sign-up site and the 1618 App pages). Look and feel follow 1618robotics.com:
   paper and ink, EB Garamond throughout, small tracked capitals for labels, 1px hairline rules instead of boxes
   and shadows, no gradients. Phone-first: everything is designed at 360 px and widened with min-width queries.
   Light only, like the website. Text colours meet WCAG AA on paper (ink 13.5:1, label 7.1:1, ink-soft 4.6:1,
   accent 5.3:1); hairlines are decorative, form controls use ink-soft borders (4.6:1). */

:root {
  color-scheme: light;
  /* website tokens */
  --paper: #F6EDD8;
  --ink: #2E2012;
  --ink-soft: #7B684E;
  --accent: #A6402D;
  --sanguine: #8E3924;
  --ochre: #EBCFAE;
  --line: #D9CDAE;
  --chalk-stroke: #B06A45;
  --label-ink: #5A4C38;
  /* roles used below (names kept from the earlier palette) */
  --page: var(--paper);
  --surface: var(--paper);
  --border: var(--line);
  --grid: var(--line);
  --text: var(--ink);
  --text-2: var(--label-ink);
  --muted: var(--ink-soft);
  --control: var(--ink-soft);
  --on-accent: var(--paper);
  --good: #3F6B5A;
  --warn-ink: #7A4E0A;
  --warn-line: var(--chalk-stroke);
  --serif: "EB Garamond", "Iowan Old Style", Palatino, Georgia, serif;
  --font: var(--serif);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font: 18px/1.5 var(--serif); font-variant-numeric: lining-nums;
  overflow-wrap: break-word; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { color: var(--ink); }
::selection { background: var(--accent); color: var(--paper); }
img, svg { max-width: 100%; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
main:focus { outline: none; }

h1 { font: 400 34px/1.15 var(--serif); letter-spacing: -.01em; margin: 8px 0 14px; }
h2 { font: 400 24px/1.25 var(--serif); margin: 0 0 12px; }
h3 { font: 500 19px/1.3 var(--serif); margin: 0 0 8px; }
h2:focus { outline: none; }
p { margin: 0 0 12px; }
.lead { font-size: 20px; line-height: 1.5; color: var(--ink); }
.hint { color: var(--ink-soft); font-size: 16px; margin: 4px 0 0; }
.muted { color: var(--ink-soft); }
/* small tracked capitals, as the website's counters and labels */
.label, .eyebrow { font: 400 14px/1.4 var(--serif); letter-spacing: .16em; text-transform: uppercase; font-kerning: none;
  color: var(--label-ink); margin: 12px 0 8px; }
.eyebrow { margin: 0; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 680px; }
#main { padding-top: 8px; padding-bottom: 48px; min-height: 60vh; }

.skip { position: absolute; left: 8px; top: -60px; z-index: 30; background: var(--ink); color: var(--paper); padding: 12px 16px; }
.skip:focus { top: 8px; }

/* ---------- header ---------- */
.site-head { padding: 10px 0 0; margin-bottom: 8px; }
.head-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "brand lang" "nav nav"; align-items: center;
  gap: 4px 12px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.head-inner .brand { grid-area: brand; }
.head-inner .lang-switch { grid-area: lang; }
.head-inner .main-nav { grid-area: nav; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--ink); font: 400 21px/1 var(--serif);
  text-decoration: none; }
.brand:hover { color: var(--ink); }
.brand span { white-space: nowrap; }
/* the 1618 tile; the PNG carries the app-icon grid's margin, so it is drawn a little larger than the old mark */
.logo { display: block; flex: none; width: 36px; height: 36px; } /* v2 tile fills its image (no margin) */
/* product lockup: tile + product word ("App"), EB Garamond 500 */
.brand { gap: 8px; }
.brand-word { font: 500 23px/1 var(--serif); color: var(--ink); white-space: nowrap; }
.lockup { display: flex; align-items: center; gap: 9px; margin: 8px 0 18px; }
.lockup-lg .logo { width: 48px; height: 48px; }
.lockup-lg .brand-word { font-size: 30px; }
.lang-switch { display: flex; gap: 2px; }
.lang-switch a { display: inline-grid; place-items: center; min-width: 44px; min-height: 44px; padding: 0 6px; color: var(--label-ink);
  font-size: 14px; letter-spacing: .16em; text-decoration: none; }
.lang-switch a:hover { color: var(--accent); }
.lang-switch a[aria-current] { color: var(--accent); text-decoration: underline; text-underline-offset: 6px; }
.main-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0 4px; }
.main-nav .btn { margin-left: auto; }
.nav-link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; color: var(--label-ink); font-size: 14px;
  letter-spacing: .16em; text-transform: uppercase; font-kerning: none; text-decoration: none; }
.nav-link:first-child { padding-left: 0; }
.nav-link:hover { color: var(--accent); }
.nav-link[aria-current] { color: var(--accent); }

/* ---------- buttons, chips ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-size: 18px; font-weight: 400;
  letter-spacing: .01em; min-height: 44px; padding: 0 20px; border-radius: 2px; border: 1px solid transparent; cursor: pointer;
  text-decoration: none; text-align: center; line-height: 1.2; }
.btn.big { min-height: 52px; padding: 0 26px; font-size: 19px; }
.btn.primary, .btn.danger { background: var(--accent); color: var(--on-accent); }
.btn.primary:hover:not(:disabled), .btn.danger:hover:not(:disabled) { background: var(--sanguine); color: var(--paper); }
/* "dark" was the ink button; primary actions are accent on the website, so it matches .primary now */
.btn.dark { background: var(--accent); color: var(--on-accent); }
.btn.dark:hover:not(:disabled) { background: var(--sanguine); color: var(--paper); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--control); }
.btn.ghost:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn.outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn.outline:hover:not(:disabled) { background: var(--accent); color: var(--on-accent); }
.btn.google { background: transparent; color: var(--ink); border-color: var(--control); width: 100%; }
.btn.google:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: progress; }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; }
.link-button { font: inherit; color: var(--accent); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline;
  text-decoration-thickness: 1px; text-underline-offset: 4px; min-height: 44px; }
.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tags li { font-size: 16px; border: 1px solid var(--line); border-radius: 999px; padding: 2px 12px; }
.status-chip { display: inline-flex; align-items: center; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--label-ink); }
.status-chip.good { color: var(--good); }

/* ---------- cards: a section under a hairline, not a box ---------- */
.card { border-top: 1px solid var(--line); padding: 16px 0; margin-bottom: 8px; min-width: 0; }
.card > :last-child { margin-bottom: 0; }
.card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; margin-bottom: 8px; }
.card-head h2 { margin: 0; }
.notice-card, .draft-banner { border-left: 2px solid var(--chalk-stroke); color: var(--ink); padding: 4px 0 4px 14px; margin: 0 0 16px; }
.draft-banner { font-size: 16px; }
.notice-card p:last-child { margin-bottom: 0; }

/* ---------- home ---------- */
.hero { padding: 16px 0 8px; }
.hero h1 { font-size: 40px; font-weight: 400; margin-top: 6px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 8px; }
.hero-actions .btn { flex: 1 1 100%; }
.section { margin-top: 28px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 24px; }
.step-card { display: flex; align-items: baseline; gap: 14px; margin: 0; }
.step-num { flex: none; font-size: 14px; letter-spacing: .2em; font-variant-numeric: lining-nums tabular-nums; color: var(--label-ink); }
.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 32px; }
.pay { font: 400 26px/1.3 var(--serif); }
.checks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.checks li { position: relative; padding-left: 28px; }
.checks li::before { content: ""; position: absolute; left: 4px; top: .4em; width: 12px; height: 7px; border-left: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent); transform: rotate(-45deg); }
.cta-band { display: flex; flex-direction: column; align-items: stretch; gap: 8px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); }
.cta-band p { margin: 0; text-align: center; }

/* ---------- FAQ ---------- */
.faq-list { padding-top: 4px; padding-bottom: 4px; }
details.faq { border-top: 1px solid var(--line); }
details.faq:first-of-type { border-top: 0; }
details.faq summary { cursor: pointer; font-size: 20px; padding: 12px 0; min-height: 48px; display: flex; align-items: center; gap: 10px; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; margin-left: auto; font-size: 22px; line-height: 1; color: var(--accent); }
details.faq[open] summary::after { content: "\2212"; }
details.faq p { color: var(--ink); }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin: 0 0 16px; min-width: 0; border: 0; padding: 0; }
.field > label, .field > legend { font-size: 17px; padding: 0; }
.optional { color: var(--ink-soft); }
input[type=text], input[type=tel], input[type=email], select {
  font: inherit; font-size: 18px; color: var(--ink); background: transparent; border: 1px solid var(--control); border-radius: 2px;
  min-height: 48px; padding: 0 12px; width: 100%; min-width: 0; }
select { padding-right: 8px; }
input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
[aria-invalid="true"] { border-color: var(--accent); }
.field-error { color: var(--accent); font-size: 16px; margin: 0; }
.form-error { color: var(--accent); margin: 4px 0 12px; }
.option-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
.option-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.option { display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 10px 4px; border-bottom: 1px solid var(--line); cursor: pointer;
  line-height: 1.3; }
.option:hover { color: var(--accent); }
.option input { flex: none; width: 20px; height: 20px; margin: 0; accent-color: var(--accent); }
.option:has(input:checked) { color: var(--accent); }
.option:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.option-chips .option { border: 1px solid var(--control); border-radius: 999px; min-height: 44px; padding: 6px 14px; }
.option-chips .option:has(input:checked) { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.phone-row { display: flex; gap: 8px; align-items: stretch; }
.prefix { display: inline-flex; align-items: center; padding: 0 12px; min-height: 48px; border: 1px solid var(--line); border-radius: 2px;
  font-variant-numeric: lining-nums tabular-nums; }
.phone-row input { flex: 1; }
.code-input { letter-spacing: .3em; font-size: 22px; font-variant-numeric: lining-nums tabular-nums; max-width: 220px; }
.divider { display: flex; align-items: center; gap: 12px; color: var(--label-ink); font-size: 14px; letter-spacing: .16em; text-transform: uppercase;
  margin: 4px 0; }
.divider::before, .divider::after { content: ""; flex: 1; border-top: 1px solid var(--line); }
.cf-turnstile { min-height: 65px; }
.loading { color: var(--ink-soft); }
.address { border: 0; padding: 0; margin: 0; gap: 0; }
.address legend { font: 400 22px/1.25 var(--serif); padding: 0; margin-bottom: 12px; }

/* ---------- application stepper ---------- */
.progress-wrap { margin: 0 0 14px; }
.progress-text { font-size: 14px; letter-spacing: .16em; text-transform: uppercase; color: var(--label-ink); margin: 0 0 6px;
  font-variant-numeric: lining-nums tabular-nums; }
.progress { height: 2px; background: var(--line); overflow: hidden; }
.progress-bar { display: block; height: 100%; width: 0; background: var(--accent); transition: width .25s ease; }
.step-form > h2 { font-size: 26px; margin-bottom: 16px; }
.step-nav { display: flex; gap: 10px; margin-top: 8px; padding-top: 14px; border-top: 1px solid var(--line); }
.step-nav .btn { flex: 1 1 0; min-height: 52px; }
.step-nav [type=submit] { flex: 2 1 0; }
.verified { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-bottom: 12px; }
.verified strong { font-weight: 500; font-variant-numeric: lining-nums tabular-nums; }
@media (prefers-reduced-motion: reduce) { .progress-bar { transition: none; } }

/* ---------- result, account ---------- */
.outcome h2 { font-size: 26px; }
.reasons { margin: 0 0 12px; padding-left: 20px; }
.reasons li { margin-bottom: 6px; }
.copy-row { display: flex; flex-direction: column; gap: 8px; }
.copy-row input { font-size: 17px; }
.answers { display: grid; grid-template-columns: minmax(0, 1fr); margin: 0; }
.answers dt { font-size: 14px; letter-spacing: .16em; text-transform: uppercase; color: var(--label-ink); padding-top: 10px; }
.answers dd { margin: 0; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.answers dd:last-child { border-bottom: 0; }
.confirm-box { border-left: 2px solid var(--accent); padding: 4px 0 4px 14px; }

/* ---------- legal ---------- */
.crumb { margin: 0 0 4px; }
.crumb a { display: inline-flex; align-items: center; min-height: 44px; }
.prose { line-height: 1.6; }
.prose h1 { font-size: 30px; }
.prose h2 { font-size: 23px; margin-top: 24px; }
.prose table { width: 100%; border-collapse: collapse; table-layout: fixed; margin: 12px 0 16px; font-size: 16px;
  font-variant-numeric: lining-nums tabular-nums; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 6px 8px 6px 0; text-align: left; vertical-align: top; overflow-wrap: anywhere; }
.prose th { font-weight: 400; font-size: 14px; letter-spacing: .12em; text-transform: uppercase; color: var(--label-ink); }
.prose blockquote { margin: 12px 0; padding: 4px 0 4px 14px; border-left: 2px solid var(--chalk-stroke); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }
.prose ul, .prose ol { padding-left: 22px; }
.link-list { list-style: none; padding: 0; }
.link-list li + li { border-top: 1px solid var(--line); }
.link-list a { display: flex; align-items: center; min-height: 48px; font-size: 20px; }

/* ---------- sign-in: split screen, as partners.1618robotics.com/login and files.1618robotics.com ---------- */
/* phones: only as tall as the form, so the top row can never end up scrolled under the browser bars */
.split { display: grid; grid-template-columns: minmax(0, 1fr); }
.art { display: none; }
/* phones: form starts at the top (centring left half a screen of empty paper above it); wide screens centre it */
#main.signin-main { display: flex; align-items: flex-start; justify-content: center; padding: 24px 24px 32px; }
.signin-box { width: 100%; max-width: 380px; padding: 8px 0; }
.signin-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 32px; }
.signin-top .lang-switch { margin-right: -10px; }
.home { display: inline-flex; align-items: center; min-height: 44px; font-size: 16px; letter-spacing: .04em; color: var(--label-ink);
  text-decoration: none; border-bottom: 1px solid transparent; white-space: nowrap; }
.home:hover { color: var(--ink); border-bottom-color: var(--line); }
.signin-box .lockup { margin: 0; }
.signin-box .tile { display: block; width: 44px; height: 44px; }
.signin-box h1 { font-size: 34px; line-height: 1.1; font-weight: 500; letter-spacing: -.01em; margin: 34px 0 20px; }
.signin-box .card { border-top: 0; padding: 0; margin: 0; }
.help { margin: 28px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--label-ink); font-size: 17px; }
.help a { color: var(--ink); text-decoration-color: rgba(46, 32, 18, .35); }
@media (min-width: 861px) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); min-height: 100vh; }
  #main.signin-main { align-items: center; padding: 32px 24px; }
  /* sticky and one screen tall, so the drawing stays centred in view even when the form column is taller */
  .art { display: flex; align-items: center; justify-content: center; padding: 8vh 6vw; border-right: 1px solid var(--line); overflow: hidden;
    position: sticky; top: 0; height: 100vh; box-sizing: border-box; }
  .art img { display: block; width: 100%; max-height: 74vh; object-fit: contain; object-position: center; }
}

/* ---------- footer ---------- */
.site-foot { border-top: 1px solid var(--line); padding: 20px 0 28px; color: var(--label-ink); font-size: 16px; }
.never-pay { color: var(--ink); }
.foot-links { display: flex; flex-wrap: wrap; gap: 0 18px; margin-bottom: 8px; }
.foot-links a, .foot-links .link-button { display: inline-flex; align-items: center; min-height: 44px; font-size: 16px; }
.operator { margin: 0; }

/* ---------- consent banner ---------- */
.consent { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: var(--paper); border-top: 1px solid var(--ink-soft); padding: 12px 0; }
.consent-inner { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.consent-inner p { margin-bottom: 10px; font-size: 17px; }
.consent-actions { display: flex; flex-direction: column; gap: 8px; }

/* ---------- wider screens ---------- */
@media (min-width: 600px) {
  .wrap { padding: 0 24px; }
  h1 { font-size: 42px; }
  .hero h1 { font-size: 52px; }
  .hero-actions .btn { flex: 0 0 auto; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card { padding: 20px 0; }
  .cta-band { flex-direction: row; align-items: center; justify-content: flex-start; gap: 20px; }
  .cta-band p { text-align: left; }
  .copy-row { flex-direction: row; }
  .copy-row input { flex: 1; }
  .consent-actions { flex-direction: row; }
  .answers { grid-template-columns: minmax(160px, 34%) minmax(0, 1fr); }
  .answers dt { padding: 12px 12px 10px 0; border-bottom: 1px solid var(--line); }
  .answers dd { padding-top: 10px; }
  .answers dt:last-of-type { border-bottom: 0; }
  .step-nav .btn { flex: 0 0 auto; min-width: 140px; }
  .step-nav [type=submit] { margin-left: auto; flex: 0 0 auto; }
}
@media (min-width: 900px) {
  .site-head { padding: 16px 0 0; }
  .head-inner { grid-template-columns: auto minmax(0, 1fr) auto; grid-template-areas: "brand nav lang"; gap: 16px; padding-bottom: 10px; }
  .main-nav { justify-content: flex-end; gap: 0 6px; }
  .main-nav .btn { margin-left: 12px; }
  .nav-link:first-child { padding-left: 8px; }
  .hero { padding: 40px 0 16px; max-width: 760px; }
  .hero h1 { font-size: 64px; letter-spacing: -.02em; }
  .lead { font-size: 22px; }
  .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .step-card { flex-direction: column; align-items: flex-start; gap: 6px; }
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* email list signup: the honeypot field stays out of sight and out of the tab order */
.subscribe .hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* result page: the outcome card is filled in by result.js; reserving its height keeps the footer from jumping (layout shift) */
#result { min-height: 14rem; }