:root {
  color-scheme: light;
  --ground: #F6F7F9;
  --surface: #FFFFFF;
  --ink: #0F1222;
  --muted: #535A70;
  --line: #DCDFE8;
  --accent: #0B7A78;
  --accent-hover: #086260;
  --accent-ink: #FFFFFF;
  --accent-soft: #DDF1EF;
  --them: #C9731A;
  --error: #B42318;
  --display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --body: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --ground: #0D0F1C;
    --surface: #161A2C;
    --ink: #E9EBF3;
    --muted: #A0A5BC;
    --line: #2B2F46;
    --accent: #4FC7C1;
    --accent-hover: #6FD6D1;
    --accent-ink: #07201F;
    --accent-soft: #12302F;
    --them: #F0A55A;
    --error: #FF8A7A;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.wrap { max-width: 1080px; margin-inline: auto; padding-inline: 24px; }
.mono { font-family: var(--mono); font-size: .92em; }

/* Header */
.top { display: flex; justify-content: space-between; align-items: center; padding-block: 20px; }
.logo { font: 800 24px/1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.logo span { color: var(--accent); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-block;
  font: 600 17px/1 var(--body);
  color: var(--accent-ink);
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  padding: 17px 28px;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: var(--accent-hover); }
.btn-small { font-size: 15px; padding: 12px 18px; }
.btn-full { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* Hero */
.hero { padding-block: 72px 88px; }
.eyebrow { font: 500 13px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 0 0 20px; }
h1 {
  font: 800 clamp(56px, 11vw, 132px)/.92 var(--display);
  letter-spacing: -.045em;
  margin: 0 0 28px;
}
.lede { font-size: clamp(18px, 2.2vw, 22px); max-width: 34ch; color: var(--ink); margin: 0 0 36px; }
.claim { margin: 0 0 32px; }
.claim-url {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
  font: 500 clamp(22px, 4.4vw, 40px)/1.2 var(--mono);
  padding: 16px 22px;
  border: 2px solid var(--ink);
  border-radius: 14px;
  background: var(--surface);
}
.claim-name { color: var(--accent); }

/* Sections */
.section { padding-block: 72px; border-top: 1px solid var(--line); }
h2 { font: 800 clamp(30px, 4.4vw, 48px)/1.05 var(--display); letter-spacing: -.02em; margin: 0 0 16px; text-wrap: balance; max-width: 20ch; }
.sub { color: var(--muted); margin: 0 0 28px; }
h3 { font: 600 20px/1.3 var(--display); margin: 0 0 8px; }

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 36px; margin-top: 40px; }
.features p { margin: 0; color: var(--muted); font-size: 16px; }

/* Fee calculator */
.calc { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 28px; max-width: 760px; }
.calc-label { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; font-weight: 600; margin-bottom: 12px; }
.calc-label output { font: 800 32px/1 var(--display); font-variant-numeric: tabular-nums; }
input[type="range"] { width: 100%; accent-color: var(--accent); margin: 0 0 28px; }
.bars { display: grid; gap: 18px; }
.bar-row { display: grid; grid-template-columns: 190px minmax(0, 1fr) 72px; gap: 16px; align-items: center; }
.bar-name { font-weight: 600; font-size: 15px; line-height: 1.3; }
.bar-name small { display: block; font-weight: 400; color: var(--muted); font-size: 13px; }
.bar-track { height: 14px; border-radius: 7px; background: var(--ground); overflow: hidden; }
.bar { display: block; height: 100%; border-radius: 7px; width: 0; transition: width .2s ease; }
@media (prefers-reduced-motion: reduce) { .bar { transition: none; } }
.bar-them { background: var(--them); }
.bar-us { background: var(--accent); }
.bar-val { font: 600 17px/1 var(--body); text-align: right; font-variant-numeric: tabular-nums; }
.fine { font-size: 13px; color: var(--muted); margin: 20px 0 0; }

/* Promise */
.promise p { font-size: clamp(19px, 2.4vw, 24px); max-width: 38ch; margin: 0; }

/* Join */
.join { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 56px; align-items: start; scroll-margin-top: 24px; }
.join-copy p { color: var(--muted); max-width: 36ch; }
.join-form { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
label { font-weight: 600; font-size: 15px; }
input[type="text"], input[type="email"], select {
  font: 400 17px/1.3 var(--body);
  color: var(--ink);
  background: var(--ground);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 14px;
  width: 100%;
  min-width: 0;
}
.name-input { display: flex; align-items: stretch; border: 1px solid var(--line); border-radius: 10px; background: var(--ground); overflow: hidden; }
.name-input:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }
.name-input input { border: 0; border-radius: 0; font-family: var(--mono); background: transparent; }
.name-input input:focus-visible { outline: none; }
.suffix { font-family: var(--mono); color: var(--muted); padding: 13px 14px 13px 0; white-space: nowrap; align-self: center; }
.hint { font-size: 13px; color: var(--muted); margin: 0; min-height: 1.4em; }
.hint.ok { color: var(--accent); }
.hint.bad { color: var(--error); }
.form-msg { margin: 0; font-weight: 500; min-height: 1.4em; }
.form-msg.bad { color: var(--error); }
.form-msg.ok { color: var(--accent); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.joined h3 { font-size: 26px; }
.joined .claim-url { font-size: 22px; margin: 8px 0 16px; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; max-width: 760px; }
.faq summary { font-weight: 600; cursor: pointer; font-size: 18px; }
.faq details p { color: var(--muted); margin: 10px 0 0; }

/* Footer */
.foot { display: flex; flex-wrap: wrap; gap: 12px 28px; padding-block: 40px 56px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.foot a { color: var(--muted); }

/* Legal pages */
.legal { max-width: 760px; padding-block: 48px 72px; }
.legal h1 { font-size: clamp(40px, 7vw, 64px); margin-bottom: 8px; }
.legal .updated { color: var(--muted); margin: 0 0 40px; }
.legal h2 { font-size: 26px; margin: 40px 0 10px; max-width: none; }
.legal p, .legal li { max-width: 68ch; }
.legal li { margin-bottom: 6px; }

@media (max-width: 860px) {
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .join { grid-template-columns: minmax(0, 1fr); gap: 24px; }
}
@media (max-width: 560px) {
  .wrap { padding-inline: 16px; }
  .hero { padding-block: 40px 56px; }
  .section { padding-block: 52px; }
  .features { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .bar-row { grid-template-columns: minmax(0, 1fr) 64px; }
  .bar-track { grid-column: 1 / -1; grid-row: 2; }
  .calc, .join-form { padding: 20px; }
  .field-row { grid-template-columns: minmax(0, 1fr); }
}