/* ONE FROM YOU — the opposite of LARGESS on purpose: paper white, poster type, one signal red. */
:root {
  --paper: #f7f5f1;
  --ink: #0a0a0a;
  --grey: #6b6b6b;
  --line: #d9d5cd;
  --signal: #e02b20;
  --sans: 'Inter', -apple-system, 'Helvetica Neue', Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 900px; margin: 0 auto; padding: 0 24px; }

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--signal); }

.label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
}

/* ---------- hero ---------- */
.hero { padding: 72px 24px 56px; text-align: center; }

.hero h1 {
  font-size: clamp(72px, 17vw, 190px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.86;
}
.hero h1 .dot { color: var(--signal); }

.hero .sig {
  margin-top: 14px;
  font-size: clamp(20px, 3.4vw, 30px);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hero .ask {
  margin: 34px auto 0;
  max-width: 620px;
  font-size: clamp(19px, 2.5vw, 23px);
  color: var(--grey);
}
.hero .ask strong { color: var(--ink); font-weight: 700; }

/* ---------- counter ---------- */
.counter {
  margin: 52px auto 0;
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  padding: 34px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  text-align: center;
}
.counter .n {
  font-size: clamp(34px, 6vw, 62px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.counter .k {
  margin-top: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}
.counter .n.red { color: var(--signal); }

/* ---------- give ---------- */
.give { padding: 56px 0 20px; text-align: center; }

.btn {
  display: inline-block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 20px 46px;
  border: 3px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, background 0.2s ease;
}
.btn:hover { background: var(--signal); border-color: var(--signal); color: #fff; transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.give .note { margin-top: 16px; font-size: 15px; color: var(--grey); }

.more {
  margin-top: 26px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.more button {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  padding: 11px 20px;
  border: 2px solid var(--line);
  background: transparent;
  color: var(--grey);
  cursor: pointer;
}
.more button:hover { border-color: var(--ink); color: var(--ink); }

/* ---------- sections ---------- */
section { padding: 64px 0; border-top: 1px solid var(--line); }

h2 {
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.06;
  margin: 12px 0 22px;
}

p + p { margin-top: 1em; }
.muted { color: var(--grey); }
.lead { font-size: clamp(20px, 2.6vw, 24px); }

blockquote {
  margin: 30px 0;
  padding-left: 24px;
  border-left: 4px solid var(--signal);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
blockquote cite { display: block; margin-top: 12px; font-size: 15px; font-weight: 400; font-style: normal; color: var(--grey); }

.maths { margin-top: 30px; width: 100%; border-collapse: collapse; }
.maths th, .maths td { text-align: left; padding: 14px 10px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.maths th { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--grey); }
.maths td:last-child, .maths th:last-child { text-align: right; }
.maths tr:last-child td { font-weight: 800; }

.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-size: 19px; font-weight: 700; list-style: none; display: flex; justify-content: space-between; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--signal); font-weight: 800; }
.faq details[open] summary::after { content: '–'; }
.faq p { margin-top: 12px; color: var(--grey); }

footer { border-top: 3px solid var(--ink); padding: 40px 0 64px; font-size: 14px; color: var(--grey); }
/* Padding rather than a bigger type size: the footer links were 22px tall, half of what a thumb
   needs, and this page is read on phones. */
footer nav { margin-top: 5px; display: flex; gap: 0 20px; flex-wrap: wrap; }
footer nav a { display: inline-block; padding: 11px 2px; }

.doc { padding: 80px 0 72px; }
.doc h1 { font-size: clamp(38px, 6vw, 54px); font-weight: 800; letter-spacing: -0.03em; }
.doc h3 { font-size: 22px; font-weight: 800; margin: 34px 0 10px; }
.doc p { color: var(--grey); }
.doc p strong { color: var(--ink); }

@media (max-width: 640px) {
  .counter { grid-template-columns: 1fr; gap: 26px; }
  section { padding: 48px 0; }
}