:root {
  --ink: #182030;
  --body: #566172;
  --line: #b9c1cc;
  --soft: #f3f4f6;
  --page: #ffffff;
  --maxw: 880px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--page); }
body { margin: 0; background: var(--page); color: var(--body); font: 18px/1.78 var(--mono); text-align: center; }
.topbar { max-width: var(--maxw); margin: 0 auto; padding: 30px 0 0; }
.topbar-inner { display: flex; align-items: center; justify-content: center; padding: 0 28px; }
.brand { text-decoration: none; font: 700 19px/1 var(--sans); letter-spacing: -.04em; }
.brand-people, .brand-call { color: var(--ink); }
.page { max-width: var(--maxw); margin: 0 auto; padding: 48px 28px 62px; display: flex; flex-direction: column; align-items: center; }
.card { margin: 0 auto; }
.letter { max-width: 700px; margin: 0 auto; text-align: center; }
.letter-header { padding: 0 0 42px; text-align: center; }
.eyebrow { margin: 0 auto 42px; color: var(--body); font-size: 14px; font-weight: 500; letter-spacing: .16em; text-transform: uppercase; }
h1 { max-width: 690px; margin: 0 auto; color: var(--ink); font: 700 clamp(30px, 4.1vw, 45px)/1.28 var(--mono); letter-spacing: -.055em; text-align: center; }
h2 { margin: 12px auto 0; text-align: center; }
h1 span { color: inherit; }
.notice-line { display: none; }
.letter-body { padding: 0; text-align: center; }
.letter-body p { max-width: 690px; margin: 0 auto 32px; text-align: center; }
strong { color: var(--ink); font-weight: 600; }
.access-address { margin: 36px auto; padding: 22px 24px; background: var(--soft); border: 1px solid #e1e4e8; text-align: center; max-width: 600px; }
.address-label { display: block; margin-bottom: 7px; color: var(--body); font-size: 13px; letter-spacing: .12em; }
.panel-link { color: var(--ink); font-weight: 700; text-decoration: none; overflow-wrap: anywhere; }
.panel-link:hover, .letter-signoff a:hover { color: #000; }
.cta-row { margin: 0 0 42px; }
.btn { display: inline-block; color: var(--ink); border-bottom: 2px solid var(--ink); padding: 0 0 4px; font: 700 18px/1.4 var(--mono); text-decoration: none; }
.btn:hover { border-bottom-width: 3px; }
.change-summary { margin: 48px 0 0; border-top: 1px solid var(--line); }
.change-summary div { display: grid; grid-template-columns: 36% 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.change-summary dt { color: var(--body); font-size: 14px; letter-spacing: .1em; text-transform: uppercase; }
.change-summary dd { margin: 0; color: var(--ink); font-size: 16px; }
.change-summary del { text-decoration-thickness: 1px; }
.letter-signoff { margin-top: 62px !important; }
.letter-signoff a { color: var(--ink); border-bottom: 2px solid var(--ink); padding-bottom: 5px; font-weight: 700; text-decoration: none; }
.doc-footer { max-width: var(--maxw); margin: 0 auto; padding: 0 28px 38px; color: #7b8491; font: 13px/1.5 var(--mono); }
a:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }

@media (max-width: 620px) {
  body { font-size: 16px; line-height: 1.72; }
  .topbar { padding-top: 24px; }
  .topbar-inner, .page, .doc-footer { padding-left: 22px; padding-right: 22px; }
  .page { padding-top: 42px; }
  .eyebrow { margin-bottom: 29px; font-size: 12px; letter-spacing: .11em; }
  h1 { font-size: 29px; letter-spacing: -.06em; }
  .letter-header { padding-bottom: 34px; }
  .access-address { padding: 18px; }
  .change-summary div { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
  .cta-row { margin-bottom: 35px; }
}