/* Helicon site. Every value is a token from DESIGN.md at the repo root (its Website section names the web-only ones). */
@font-face {
  font-family: "Bricolage Grotesque";
  src: url("fonts/bricolage.woff") format("woff");
  font-weight: 700;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --bg: #F3F5F8;
  --surface: #FCFCFD;
  --surface2: #EBEEF2;
  --line: #DADDE3;
  --edge: #80868F;
  --ink: #15171C;
  --muted: #565C66;
  --accent: #1D52AC;
  --onAccent: #F8FAFD;
  --accentWash: #E4ECF9;
  --glow: #F2B33D;
  --glowWash: #FCEBC4;
  --note: #FFF6C8;

  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --text: system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --book: "New York", ui-serif, Georgia, serif;

  --spaceXs: 8px;
  --spaceSm: 12px;
  --spaceMd: 16px;
  --spaceLg: 24px;
  --spaceXl: 40px;
  --space2xl: 64px;
  --space3xl: 104px;
  --radius: 16px;
  --controlRadius: 12px;
  --shotRadius: 28px;
  --measure: 34rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101317;
    --surface: #181B20;
    --surface2: #22262C;
    --line: #30353C;
    --edge: #78808A;
    --ink: #E8EBEF;
    --muted: #A4AAB3;
    --accent: #8DB4F5;
    --onAccent: #0E1726;
    --accentWash: #1B2940;
    --glow: #E0A534;
    --glowWash: #3A2E14;
    --note: #4A4528;
  }
}

* { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 var(--text);
}

img { display: block; max-width: 100%; height: auto; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, .button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--controlRadius);
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  font-style: normal;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
  overflow-wrap: anywhere;
  min-width: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(2.5rem, 1.6rem + 4.4vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem); }
h3 { font-size: 1.125rem; }

p { margin: 0; text-wrap: pretty; }

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--spaceMd);
}
@media (min-width: 640px) { .wrap { padding: 0 var(--spaceXl); } }

/* Header */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spaceMd);
  padding-top: var(--spaceMd);
  padding-bottom: var(--spaceMd);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spaceSm);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.25rem;
  white-space: nowrap;
}
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.top nav { display: flex; gap: var(--spaceLg); }
.top nav a { color: var(--muted); text-decoration: none; font-size: 0.9375rem; white-space: nowrap; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }

/* Hero */
.hero {
  display: grid;
  gap: var(--spaceXl);
  padding-top: var(--spaceXl);
  padding-bottom: var(--space2xl);
}
@media (min-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 480px);
    align-items: center;
    gap: var(--space2xl);
    padding-top: var(--space2xl);
  }
}
.lead {
  margin-top: var(--spaceLg);
  font-size: 1.1875rem;
  color: var(--muted);
  max-width: var(--measure);
}
.get {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spaceSm) var(--spaceLg);
  margin-top: var(--spaceXl);
}
.button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 var(--spaceLg);
  border-radius: 999px;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
}
.button.soon { background: var(--surface2); color: var(--muted); border: 1px solid var(--line); }
.button.primary { background: var(--accent); color: var(--onAccent); }
.button.primary:active { opacity: 0.72; }
.fine { margin-top: var(--spaceMd); font-size: 0.875rem; color: var(--muted); }

/* A demo video: square, the app's own paper behind it while it loads */
.clip {
  margin: 0;
  width: 100%;
  max-width: 440px;
  justify-self: center;
  aspect-ratio: 1;
  border-radius: var(--shotRadius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}
.clip video { display: block; width: 100%; height: 100%; object-fit: cover; }

/* Join the beta: one field and one button, side by side when there is room */
.beta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--spaceSm);
  margin-top: var(--spaceXl);
  max-width: 30rem;
}
@media (min-width: 480px) { .beta { grid-template-columns: minmax(0, 1fr) auto; } }
.beta input {
  min-height: 48px;
  min-width: 0;
  padding: 0 var(--spaceMd);
  border: 1px solid var(--edge);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}
.beta input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.beta .button { justify-content: center; border: 0; font: inherit; font-weight: 600; cursor: pointer; }
.beta .fine { grid-column: 1 / -1; margin-top: 0; }
.beta .button.secondary { background: var(--surface2); color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
/* The TestFlight link leads; the email form under it is the second choice */
[data-beta-click] { margin-top: var(--spaceXl); }
@media (max-width: 479px) { [data-beta-click] { display: flex; justify-content: center; } }
.or { margin-top: var(--spaceLg); color: var(--muted); }
.or + .beta { margin-top: var(--spaceSm); }
.beta .joined { grid-column: 1 / -1; padding: var(--spaceMd) var(--spaceLg); border-radius: var(--radius); background: var(--accentWash); color: var(--ink); font-weight: 600; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.top nav a.join { color: var(--accent); font-weight: 600; }

/* The page: each part is text with a margin note beside it, and a phone shot */
.part {
  display: grid;
  gap: var(--spaceXl);
  padding: var(--space2xl) 0;
  border-top: 1px solid var(--line);
}
@media (min-width: 860px) {
  .part {
    grid-template-columns: minmax(0, 1fr) minmax(0, 440px);
    gap: var(--space2xl);
    align-items: start;
    padding: var(--space3xl) 0;
  }
}
.part .text { display: grid; gap: var(--spaceMd); align-content: start; }
@media (min-width: 860px) { .part .text { position: sticky; top: var(--spaceXl); } }
.part .text p { max-width: var(--measure); color: var(--muted); }
.part .text p strong { color: var(--ink); font-weight: 600; }

.options { display: grid; gap: var(--spaceMd); margin: var(--spaceXs) 0 0; max-width: var(--measure); }
.options dt { font-weight: 600; color: var(--ink); }
.options dd { margin: 2px 0 0; color: var(--muted); }

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spaceXs);
  margin: 0;
  padding: 0;
  list-style: none;
}
.facts li {
  padding: 6px var(--spaceSm);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.875rem;
  color: var(--ink);
  white-space: nowrap;
}

/* Privacy band */
.private {
  display: grid;
  gap: var(--spaceMd);
  margin-bottom: var(--space2xl);
  padding: var(--spaceXl) var(--spaceLg);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
@media (min-width: 640px) { .private { padding: var(--spaceXl); } }
.private p { max-width: var(--measure); color: var(--muted); }

/* Text pages: support and privacy */
.doc main { max-width: 44rem; padding-top: var(--spaceXl); padding-bottom: var(--space2xl); }
.doc h1 { font-size: clamp(2.25rem, 1.8rem + 2vw, 3rem); }
.doc h2 { font-size: 1.375rem; margin-top: var(--spaceXl); }
.doc p, .doc li { color: var(--muted); }
.doc main > p, .doc main > ul { margin-top: var(--spaceSm); }
.doc ul { padding-left: 1.25rem; }
.doc li + li { margin-top: var(--spaceXs); }
.doc strong { color: var(--ink); font-weight: 600; }
.updated { margin-top: var(--spaceSm); font-size: 0.875rem; }
.doc .lead { margin-top: var(--spaceMd); }

/* The closing form */
.cta { display: grid; justify-items: start; padding: var(--space2xl) 0; border-top: 1px solid var(--line); margin-bottom: var(--space2xl); }
.cta .beta { width: 100%; }

/* Footer */
.end {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--spaceSm) var(--spaceLg);
  padding-top: var(--spaceLg);
  padding-bottom: var(--spaceXl);
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--muted);
}
.end nav { display: flex; flex-wrap: wrap; gap: var(--spaceSm) var(--spaceLg); }
.end a { color: var(--muted); white-space: nowrap; }

/* A phone keeps only Join the beta in the header; Support and Privacy are in the footer. */
@media (max-width: 479px) { .top nav a:not(.join) { display: none; } }

/* The demos swap sides from one part to the next, so the page does not read as one column of the same row. */
@media (min-width: 860px) {
  .part:nth-of-type(even) { grid-template-columns: minmax(0, 440px) minmax(0, 1fr); }
  .part:nth-of-type(even) .clip { order: -1; }
}

/* A search page's parts carry no demo of their own: two short texts side by side, or one list across. */
@media (min-width: 860px) {
  .part.solo, .part.solo:nth-of-type(even) { grid-template-columns: minmax(0, 1fr); }
  .part.duo, .part.duo:nth-of-type(even) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .part.duo .text { position: static; }
}