:root {
  --bg: #f7f4ec;
  --ink: #1a1a1a;
  --ink-soft: #3d3a33;
  --accent: #6b2d2d;
  --rule: #d8d2c2;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1816;
    --ink: #f1ece0;
    --ink-soft: #c5beae;
    --accent: #d4a17a;
    --rule: #3d3a33;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

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

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

.hero {
  text-align: center;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
  color: var(--accent);
}

.tagline {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0;
}

section {
  margin: 3rem 0;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
}

section:first-of-type {
  border-top: none;
  padding-top: 0;
}

h2 {
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 1rem;
}

.mission p + p {
  margin-top: 1rem;
}

.guarantees ol {
  padding-left: 1.25rem;
  margin: 0;
}

.guarantees li {
  margin: 0.75rem 0;
}

.signup .waitlist-form {
  display: flex;
  gap: 0.5rem;
  margin: 1.25rem 0 0.75rem;
  flex-wrap: wrap;
}

.signup input[type="email"] {
  flex: 1 1 14rem;
  font: inherit;
  padding: 0.75rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--bg);
  color: var(--ink);
}

.signup input[type="email"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.signup button {
  font: inherit;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: 2px;
  background: var(--accent);
  color: var(--bg);
  cursor: pointer;
  font-family: var(--sans);
  letter-spacing: 0.02em;
}

.signup button:hover {
  filter: brightness(1.1);
}

.fine-print {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0.5rem 0 0;
}

footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

footer a {
  color: var(--accent);
}

.signature {
  font-style: italic;
  margin-top: 0.5rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}