/* The app's stenographer's pad, as a page: ruled green-grey paper, green-black ink,
   and the red margin rule running the length of it. */
:root {
  --paper: #f7f8f4;
  --pad: #eceee8;
  --raised: #ffffff;
  --ink: #18201b;
  --graphite: #56625a;
  --faint: #8c978f;
  --rule: #dce2d8;
  --line: rgb(47 106 79 / 0.07);
  --margin: #c8372d;
  --margin-soft: rgb(200 55 45 / 0.22);
  --binding: #2a322d;
  /* The note-writing band: deep green with light text in both appearances. */
  --band: #1b2a22;
  --band-ink: #f2f5ef;
  --band-accent: #ff8a7e;
  --shadow: 0 1px 2px rgb(24 32 27 / 0.06), 0 30px 60px -24px rgb(24 32 27 / 0.28);
  --gutter: clamp(56px, 7vw, 112px);
  /* The margin rule sits this far left of the text. */
  --rule-x: calc(var(--gutter) - 36px);
  --serif: "Instrument Serif", "New York", Georgia, serif;
  --sans: "Hanken Grotesk", -apple-system, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171c19;
    --pad: #111512;
    --raised: #1f2521;
    --ink: #e4eae3;
    --graphite: #a2ada4;
    --faint: #6d786f;
    --rule: #2b332e;
    --line: rgb(124 195 160 / 0.05);
    --margin: #ef6a5e;
    --margin-soft: rgb(239 106 94 / 0.25);
    --binding: #0c0f0d;
    --band: #213428;
    --band-ink: #e4eae3;
    --band-accent: #f2877c;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 30px 60px -24px rgb(0 0 0 / 0.7);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(to bottom, transparent 0 31px, var(--line) 31px 32px);
  color: var(--ink);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.margin-rule {
  position: fixed;
  inset: 0 auto 0 var(--rule-x);
  width: 2px;
  background: var(--margin);
  opacity: 0.55;
  pointer-events: none;
}

a { color: inherit; }

h1, h2 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.02;
  margin: 0;
}

h1 em, h2 em { color: var(--margin); }

.mono { font: 500 12px var(--mono); color: var(--faint); font-variant-numeric: tabular-nums; }

/* Header */
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px var(--gutter);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font: 400 26px var(--serif);
}
.brand img { border-radius: 7px; }
.top-links { display: flex; align-items: center; gap: 10px; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--paper);
  font: 600 16px var(--sans);
  text-decoration: none;
  box-shadow: 0 1px 0 rgb(255 255 255 / 0.12) inset, 0 10px 24px -12px rgb(24 32 27 / 0.6);
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
.button:hover { transform: translateY(-1px); background: var(--margin); }
.button:active { transform: translateY(0); }
.button:focus-visible { outline: 3px solid var(--margin-soft); outline-offset: 3px; }
.button.small { padding: 9px 16px; font-size: 14px; border-radius: 10px; }
.button.ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--rule);
}
.button.ghost:hover { background: transparent; box-shadow: inset 0 0 0 1px var(--graphite); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.cta .fine { flex-basis: 100%; margin-top: 2px; }

/* Hero */
main { padding: 0 var(--gutter); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
  padding: clamp(40px, 8vh, 96px) 0 clamp(64px, 10vh, 120px);
}
.kicker {
  margin: 0 0 18px;
  font: 500 13px var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--margin);
}
h1 { font-size: clamp(46px, 7vw, 92px); }
h1 em { display: block; }
.lede { max-width: 34em; margin: 26px 0 34px; font-size: 19px; color: var(--graphite); }
.fine { margin: 14px 0 0; font-size: 14px; line-height: 1.55; color: var(--faint); }
.fine strong { color: var(--ink); font-weight: 600; }

.reveal { animation: rise 700ms cubic-bezier(0.2, 0.7, 0.2, 1) both; animation-delay: calc(var(--i) * 90ms); }

/* The pad */
.pad {
  margin: 0;
  position: relative;
  background: var(--raised);
  border: 1px solid var(--rule);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: rotate(1.2deg);
  animation: settle 900ms cubic-bezier(0.2, 0.7, 0.2, 1) 200ms both;
}
.pad::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 58px;
  width: 1.5px;
  background: var(--margin);
  opacity: 0.8;
}
.pad-binding {
  height: 30px;
  background:
    repeating-linear-gradient(to right, transparent 0 34px, #d9ddd6 34px 38px, transparent 38px 56px) center / 100% 18px no-repeat,
    var(--binding);
}
.pad-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px 6px 76px;
}
.rec { display: inline-flex; align-items: center; gap: 8px; font: 600 12px var(--sans); color: var(--margin); letter-spacing: 0.02em; }
.rec i { width: 8px; height: 8px; border-radius: 50%; background: var(--margin); animation: pulse 1.6s ease-in-out infinite; }

.transcript { list-style: none; margin: 0; padding: 4px 22px 8px 0; }
.transcript li {
  display: grid;
  grid-template-columns: 58px 1fr;
  column-gap: 18px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  animation: write 600ms ease both;
  animation-delay: calc(700ms + var(--i) * 650ms);
}
.transcript .mono { text-align: right; padding-right: 10px; padding-top: 3px; grid-row: span 2; }
.transcript b { font: 600 13px var(--sans); color: var(--graphite); }
.transcript b.me { color: var(--margin); }
.transcript p { margin: 2px 0 0; font-size: 15px; line-height: 1.5; }

.notes {
  margin: 8px 16px 18px 76px;
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--pad);
  animation: write 700ms ease both;
  animation-delay: 3.5s;
}
.notes .written-by { margin: 0 0 10px; font: 500 11px var(--mono); color: var(--margin); }
.notes h3 { margin: 0 0 4px; font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--faint); }
.notes p { margin: 0 0 12px; font-size: 15px; }
.notes label { display: flex; gap: 9px; align-items: center; font-size: 14px; margin-top: 4px; }
.notes input { accent-color: var(--margin); margin: 0; }
.notes label b { font-weight: 600; min-width: 2.6em; }

/* Note writing: a deep green band straight after the hero */
.byo {
  margin: 0 calc(-1 * var(--gutter));
  padding: clamp(64px, 10vh, 112px) var(--gutter);
  background: var(--band);
  color: var(--band-ink);
}
.byo .kicker, .byo h2 em { color: var(--band-accent); }
.byo-head { max-width: 760px; }
.byo-head h2 { margin-bottom: 20px; }
.byo-head h2 em { display: block; }
.byo-head > p:last-child { margin: 0; font-size: 19px; opacity: 0.78; }
.byo-points {
  list-style: none;
  margin: clamp(40px, 6vh, 64px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}
.byo-points li { padding-top: 18px; border-top: 2px solid var(--band-accent); }
.byo-points p { margin: 0; opacity: 0.72; font-size: 16px; }
.byo + section { border-top: 0; }

/* Sections */
section h2 { font-size: clamp(36px, 4.6vw, 58px); margin-bottom: 36px; }
.steps, .ledger, .faq { padding: clamp(56px, 9vh, 104px) 0; border-top: 1px solid var(--rule); }

.steps ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(24px, 4vw, 56px); }
.steps li { position: relative; }
.num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  border: 1.5px solid var(--margin);
  border-radius: 50%;
  font: 400 22px var(--serif);
  color: var(--margin);
}
h3 { font: 600 19px/1.3 var(--sans); margin: 0 0 8px; }
.steps p, .ledger li, .faq p { color: var(--graphite); }
.steps p { margin: 0; }

.ledger .columns { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--rule); border-radius: 18px; overflow: hidden; background: var(--raised); }
.ledger .columns > div { padding: clamp(24px, 3.4vw, 40px); }
.ledger .columns > div + div { border-left: 2px solid var(--margin-soft); background: var(--pad); }
.ledger ul { list-style: none; margin: 0; padding: 0; }
.ledger li { position: relative; padding: 10px 0 10px 26px; border-top: 1px solid var(--line); }
.ledger li::before { content: "✓"; position: absolute; left: 0; color: var(--margin); font-weight: 600; }
.ledger .columns > div + div li::before { content: "→"; }
.ledger-more { margin: 22px 0 0; color: var(--graphite); }
.ledger-more a, .legal a { text-decoration-color: var(--margin); text-underline-offset: 3px; }

.faq details { border-top: 1px solid var(--rule); max-width: 820px; }
.faq details:last-of-type { border-bottom: 1px solid var(--rule); }
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font: 600 18px var(--sans);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 26px/1 var(--serif); color: var(--margin); transition: transform 200ms ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:focus-visible { outline: 2px solid var(--margin-soft); outline-offset: 4px; }
.faq details p { margin: 0 0 22px; max-width: 42em; }

.closing { padding: clamp(64px, 12vh, 140px) 0; border-top: 1px solid var(--rule); text-align: center; }
.closing h2 { margin-bottom: 14px; }
.closing-sub { margin: 0 0 30px; color: var(--graphite); font-size: 19px; }

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 26px var(--gutter) 40px;
  font-size: 14px;
  color: var(--faint);
  border-top: 1px solid var(--rule);
}
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.foot a[aria-current="page"] { color: var(--ink); }

/* Privacy policy and terms */
.legal { max-width: 44em; padding: clamp(32px, 6vh, 72px) 0 clamp(64px, 10vh, 112px); }
.legal h1 { font-size: clamp(44px, 6vw, 72px); }
.legal .updated { margin: 16px 0 0; font: 500 13px var(--mono); color: var(--faint); }
.legal .lede { margin: 26px 0 8px; }
.legal h2 { font-size: clamp(28px, 3.4vw, 38px); margin: 48px 0 14px; }
.legal p, .legal li { color: var(--graphite); }
.legal section p { margin: 0 0 12px; }
.legal ul { margin: 0 0 12px; padding-left: 1.2em; }
.legal li { margin: 8px 0; padding-left: 4px; }
.legal li::marker { color: var(--margin); }
.legal strong { color: var(--ink); font-weight: 600; }
.legal code { font: 14px var(--mono); color: var(--ink); overflow-wrap: anywhere; }

@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
@keyframes settle { from { opacity: 0; transform: rotate(4deg) translateY(30px); } }
@keyframes write { from { opacity: 0; transform: translateX(-8px); clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes pulse { 50% { opacity: 0.25; } }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .pad { transform: none; }
  .steps ol, .ledger .columns { grid-template-columns: 1fr; }
  .byo-points { grid-template-columns: 1fr 1fr; }
  .ledger .columns > div + div { border-left: 0; border-top: 2px solid var(--margin-soft); }
}

@media (max-width: 560px) {
  :root { --gutter: 32px; --rule-x: 10px; }
  body { font-size: 16px; }
  .lede { font-size: 17px; }
  .byo-points { grid-template-columns: 1fr; }
  .pad::before { left: 44px; }
  .pad-head { padding-left: 56px; }
  .notes { margin: 8px 12px 16px 56px; }
  .transcript li { grid-template-columns: 44px 1fr; column-gap: 12px; }
  .transcript .mono { font-size: 10px; padding-right: 6px; }
  .button:not(.small) { width: 100%; justify-content: center; }
  .top-links .ghost { padding: 9px 11px; }
  .top-links .ghost span { display: none; }
}

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