/* Page frame: base type, header, footer, section rhythm. */

:root {
  --wrap: 74rem;
  --gutter: clamp(1.1rem, 4vw, 3rem);
  --inset: max(var(--gutter), calc((100vw - var(--wrap)) / 2));
  --section: clamp(3rem, 8vw, 6rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 400 1.0625rem/1.6 var(--body);
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
picture { display: block; }
h1, h2, h3 { font-family: var(--display); line-height: 1; margin: 0 0 0.45em; text-wrap: balance; }
h1 { font: 800 clamp(3.2rem, 9.5vw, 8rem)/0.9 var(--display); text-transform: uppercase; letter-spacing: 0.005em; }
h2, .h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: 0.005em; line-height: 1; }
h3 { font-size: 1.6rem; font-weight: 800; letter-spacing: 0.01em; }
p { margin: 0 0 1em; max-width: 62ch; }
a { color: var(--cobalt); text-underline-offset: 0.18em; }
a:focus-visible { outline: 3px solid var(--corten); outline-offset: 3px; }

.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 0.6rem 1rem; z-index: 10; }
.skip:focus { left: 0; }

.btn {
  display: inline-block;
  font: 700 1rem/1 var(--body);
  text-decoration: none;
  padding: 1rem 1.4rem;
  border: 2px solid var(--ink);
}
.btn-give { background: var(--corten); border-color: var(--corten); color: var(--ink); }
.btn-give:hover { background: var(--corten-dark); border-color: var(--corten-dark); }
.btn-plain { background: transparent; color: var(--ink); }
.btn-plain:hover { background: var(--ink); color: #fff; }

/* Header */
.top {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 0.8rem var(--inset);
  background: var(--paper);
}
.brand { display: flex; align-items: flex-end; gap: 0.6rem; text-decoration: none; color: var(--ink); font: 800 1.9rem/0.8 var(--display); letter-spacing: 0.02em; text-transform: uppercase; }
.brand img { width: 150px; height: auto; }
.top nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.4rem; }
.top nav a:not(.btn) { color: var(--ink); font-weight: 600; text-decoration: none; }
.top nav a:not(.btn):hover { text-decoration: underline; text-decoration-color: var(--corten); text-decoration-thickness: 3px; }
.top .btn { padding: 0.75rem 1.1rem; }

/* Every block except the hero shares this rhythm. Backgrounds run full width. */
.block { padding: var(--section) var(--inset); }
.block.joined { padding-top: 0; }
.block:has(+ .joined) { padding-bottom: 2.5rem; }
.block.dark { background: var(--cobalt); color: #fff; }
.block.dark a { color: #fff; }

/* Footer */
.foot { background: var(--ink); color: #fff; padding: clamp(2.5rem, 6vw, 4rem) var(--inset); }
.closing { font: 900 clamp(2.4rem, 7vw, 5rem)/0.9 var(--display); text-transform: uppercase; max-width: none; margin: 0 0 2rem; }
.foot-cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem 2rem; }
.foot address { font-style: normal; }
.foot a { color: #fff; font-weight: 600; }
.foot-cols p { margin: 0; }
.legal { font-size: 0.9rem; margin: 2rem 0 0; max-width: none; opacity: 0.85; }
.legal-links { font-size: 0.9rem; margin: 0.6rem 0 0; display: flex; flex-wrap: wrap; gap: 0.3rem 1.25rem; }
.credit { font-size: 0.9rem; margin: 0.6rem 0 0; max-width: none; }

@media (max-width: 60rem) {
  .foot-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 52rem) {
  .top nav a:not(.btn) { display: none; }
  .brand img { width: 120px; }
}
@media (max-width: 30rem) {
  .foot-cols { grid-template-columns: 1fr; }
  .brand span { display: none; }
}

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