/* Style: Mid-century civil-defense poster (cream, burnt orange, mustard, teal, chunky slab serif) */
:root {
  --cream: #f3e9d2;
  --paper: #fffaf0;
  --orange: #d65a2b;
  --mustard: #e7a83b;
  --teal: #2a7f7a;
  --brown: #2b2118;
  --muted: #5d4c3b;
  --slab: "Alfa Slab One", "Rockwell", Georgia, serif;
  --sans: "Work Sans", system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--brown);
  background: var(--cream);
}

a { color: var(--teal); text-underline-offset: 3px; font-weight: 600; }

a:focus-visible, .btn:focus-visible, summary:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  padding: 8px 12px;
  background: var(--brown);
  color: var(--cream);
  z-index: 10;
}

.skip:focus { left: 8px; }

/* Top */
.top { border-bottom: 4px solid var(--brown); }

.top__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 4px 16px; min-height: 64px; }

.logo { font-family: var(--slab); font-size: 1.3rem; color: var(--orange); text-decoration: none; }

.top__note { margin: 0; text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; font-weight: 600; }

/* Poster */
.poster { padding: 48px 0 56px; }

.poster__grid { display: grid; gap: 40px; align-items: center; }

.stamp {
  display: inline-block;
  margin: 0 0 18px;
  padding: 4px 12px;
  border: 2px solid var(--brown);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}

h1 {
  font-family: var(--slab);
  font-weight: 400;
  font-size: clamp(2.1rem, 6.5vw, 3.8rem);
  line-height: 1.05;
  margin: 0 0 20px;
}

.lede { max-width: 58ch; color: var(--muted); margin: 0 0 28px; }

.lede strong { color: var(--brown); }

.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 999px;
  background: var(--orange);
  color: var(--paper);
  font-weight: 600;
  text-decoration: none;
  border: 3px solid var(--brown);
  box-shadow: 0 5px 0 var(--brown);
}

.btn:hover { transform: translateY(2px); box-shadow: 0 3px 0 var(--brown); }

.btn--ghost { background: var(--paper); color: var(--brown); }

.btn--cream { background: var(--cream); color: var(--brown); }

.rings { margin: 0; justify-self: center; width: min(340px, 100%); text-align: center; }

.rings svg { display: block; width: 100%; height: auto; }

.rings figcaption { margin-top: 10px; font-size: .9rem; color: var(--muted); }

/* Band */
.band { background: var(--brown); color: var(--cream); }

.facts {
  list-style: none;
  margin: 0;
  padding: 20px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .8rem;
}

.facts span { display: block; font-family: var(--slab); font-size: 2rem; letter-spacing: 0; color: var(--mustard); line-height: 1.1; }

/* Sections */
.sect { padding-top: 64px; }

h2 {
  font-family: var(--slab);
  font-weight: 400;
  font-size: clamp(1.7rem, 4.5vw, 2.4rem);
  line-height: 1.1;
  margin: 0 0 24px;
}

h3 { font-size: 1.1rem; font-weight: 600; margin: 0 0 6px; }

.grid-cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }

.grid-cards li { background: var(--paper); border: 3px solid var(--brown); border-radius: 18px; padding: 18px; }

.grid-cards p { margin: 0; color: var(--muted); font-size: .97rem; }

.modules { display: grid; gap: 16px; }

.module { border-radius: 22px; padding: 24px; border: 3px solid var(--brown); }

.module h3 { font-family: var(--slab); font-weight: 400; font-size: 1.3rem; margin-bottom: 12px; line-height: 1.2; }

.module ol { margin: 0; padding-left: 24px; }

.module li { margin-bottom: 6px; }

.module--orange { background: #b04619; color: var(--paper); }

.module--mustard { background: var(--mustard); color: var(--brown); }

.module--teal { background: #22706b; color: var(--paper); }

.note { margin: 20px 0 0; color: var(--muted); }

/* FAQ */
.faq { display: grid; gap: 10px; }

.faq details { background: var(--paper); border: 3px solid var(--brown); border-radius: 18px; }

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 56px 16px 20px;
  font-weight: 600;
  position: relative;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 12px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--mustard);
  border: 2px solid var(--brown);
  display: grid;
  place-items: center;
  font-weight: 700;
}

.faq details[open] summary::after { content: "−"; background: var(--orange); color: var(--paper); }

.faq details p { margin: 0; padding: 0 20px 18px; color: var(--muted); }

/* Closer */
.closer { margin-top: 72px; background: var(--teal); color: var(--paper); border-top: 4px solid var(--brown); }

.closer__inner { padding: 56px 0; text-align: center; }

.closer h2 { color: var(--paper); }

.closer p { max-width: 58ch; margin: 0 auto 28px; }

/* Footer */
.foot { background: var(--brown); color: #d9cbb0; padding: 22px 0; font-size: .9rem; }

.foot a { color: var(--cream); font-weight: 400; }

.foot__inner { display: grid; gap: 4px; }

.foot p { margin: 0; }

@media (min-width: 760px) {
  .facts { grid-template-columns: repeat(5, 1fr); }
  .grid-cards { grid-template-columns: repeat(2, 1fr); }
  .modules { grid-template-columns: repeat(3, 1fr); }
  .foot__inner { grid-template-columns: 1fr auto; }
}

@media (min-width: 1000px) {
  .poster__grid { grid-template-columns: 1.35fr 1fr; }
  .grid-cards { grid-template-columns: repeat(4, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}