:root {
  --paper: #fdfaf3;
  --sheet: #ffffff;
  --ink: #3d3a36;
  --ink-soft: #6b665f;
  --gold: #e9a820;
  --gold-tint: #fbecc4;
  --red: #e2574c;
  --red-tint: #fbdfdb;
  --blue: #4a6fd0;
  --blue-tint: #dfe7fb;
  --syrup: #9a5b2b;

  --hand: "Patrick Hand", "Comic Sans MS", cursive;
  --body: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* uneven corners give boxes a drawn-by-hand outline */
  --wonky: 255px 18px 225px 18px / 18px 225px 18px 255px;
  --wonky-alt: 18px 225px 18px 255px / 255px 18px 225px 18px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.125rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--blue); text-underline-offset: 0.2em; }
a:hover { color: var(--red); }

h1, h2, h3, h4 {
  font-family: var(--hand);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.4rem, 7vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4.5vw, 2.4rem); }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

p { margin: 0 0 1em; }

.wrap {
  width: 100%;
  max-width: 60rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}
.narrow { max-width: 42rem; }
.center { text-align: center; }
.small { font-size: 0.95rem; color: var(--ink-soft); }

section { padding-block: 3.5rem; }

/* Header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--hand);
  font-size: 1.5rem;
  color: var(--ink);
  text-decoration: none;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-link {
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 0.7em 1.4em;
  border: 3px solid var(--ink);
  border-radius: var(--wonky);
  font-family: var(--hand);
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.12s ease;
}
.btn:hover { color: var(--ink); transform: rotate(-1.5deg) scale(1.03); }
.btn-primary { background: var(--gold); }
.btn-secondary { background: var(--sheet); border-color: var(--blue); border-radius: var(--wonky-alt); }
.btn-small { font-size: 1.1rem; padding: 0.4em 1em; background: var(--gold); }

/* Hero */

.hero { text-align: center; padding-top: 2rem; }
.hero-logo { width: clamp(8rem, 28vw, 12.5rem); }
.hero h1 { max-width: 14em; margin-inline: auto; }
.lede {
  max-width: 34rem;
  margin-inline: auto;
  font-size: 1.25rem;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-block: 1.75rem 1rem;
}

/* crayon underline */
.scribble {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 14' preserveAspectRatio='none'%3E%3Cpath d='M3 8 C30 3 55 12 85 7 S140 3 168 8 197 6 197 6' fill='none' stroke='%23e2574c' stroke-width='5' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat bottom / 100% 0.28em;
  padding-bottom: 0.12em;
}

/* Example puzzle */

.example h2 { text-align: center; }
.paper {
  background: var(--sheet);
  border: 3px solid var(--ink);
  border-radius: var(--wonky);
  padding: clamp(1.5rem, 5vw, 3rem);
  margin-block: 1.5rem 2rem;
  transform: rotate(-0.4deg);
}
.setup { max-width: 44rem; }
.layers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.layer {
  padding: 1.1rem 1.25rem;
  border: 3px solid;
  border-radius: var(--wonky-alt);
  font-size: 1rem;
}
.layer h4 span {
  font-family: var(--body);
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-left: 0.35em;
}
.layer p:last-child { margin-bottom: 0; }
.layer-gold { border-color: var(--gold); background: var(--gold-tint); }
.layer-red { border-color: var(--red); background: var(--red-tint); }
.layer-blue { border-color: var(--blue); background: var(--blue-tint); }
.note {
  padding-top: 0.75em;
  border-top: 2px dashed rgb(61 58 54 / 0.3);
  font-size: 0.95rem;
}

/* Signup */

.signup { text-align: center; }
.signup-frame {
  max-width: 32rem;
  margin: 1.5rem auto;
  padding: 0.75rem;
  background: var(--sheet);
  border: 3px solid var(--gold);
  border-radius: var(--wonky);
  overflow: hidden;
}
.signup-frame iframe {
  display: block;
  width: 100%;
  border: 0;
  background: var(--sheet);
}

/* Footer */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding-block: 2.5rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.site-footer p { margin: 0; }

@media (max-width: 30rem) {
  .brand span { font-size: 1.25rem; }
  .nav-link { display: none; }
  .btn { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}