:root {
  --accent: #1D5C3C;
  --paper: #F5F1E8;
  --ink: #1A1915;
  --muted: #5C574C;
  --body: #4F4B42;
  --rule: #D8D1C2;
  --rule-soft: #E6DFCF;
  --card: #FFFEFB;
  --card-border: #CFC7B6;
  --danger: #9A3B2A;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}
a { color: var(--ink); }
a:hover { color: var(--accent); }
h1, h2, h3, p, figure, ul { margin: 0; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 72px 32px 88px; }

/* ---------- nav ---------- */
.nav {
  max-width: 1240px; margin: 0 auto; padding: 28px 32px 20px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px 32px; border-bottom: 1px solid var(--ink);
}
.brand { display: flex; align-items: baseline; gap: 14px; text-decoration: none; }
.brand-name { font: 400 32px/1 var(--serif); letter-spacing: -0.01em; }
.brand-tag { font: 400 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.nav-links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 28px; }
.navlink { text-decoration: none; font: 500 15px/1 var(--sans); padding: 10px 2px; }
.navlink:hover { text-decoration: underline; text-underline-offset: 4px; }
.nav-cta {
  text-decoration: none; display: inline-flex; align-items: center; height: 44px; padding: 0 18px;
  border: 1px solid var(--ink); border-radius: 3px; font: 500 15px/1 var(--sans);
}

/* ---------- shared bits ---------- */
.stamp {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 12px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
}
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.check { flex: none; }
.label { font: 500 12px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.field { display: flex; flex-direction: column; gap: 6px; }
.input {
  width: 100%; height: 48px; padding: 0 14px; border: 1px solid #B9B0A0; border-radius: 3px;
  background: var(--card); color: var(--ink); font: 400 16px/1 var(--sans);
}
.input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.btn {
  height: 48px; padding: 0 22px; border: 0; border-radius: 3px; background: var(--accent);
  color: var(--card); font: 500 16px/1 var(--sans); cursor: pointer; white-space: nowrap;
}
.btn:hover { filter: brightness(1.08); }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.btn:disabled { opacity: .6; cursor: default; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status { font-size: 14px; line-height: 1.45; color: var(--muted); }
.status:empty { display: none; }
.note { font: 400 14px/1.5 var(--mono); color: var(--muted); }

.check-row { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; line-height: 1.45; color: var(--body); cursor: pointer; }
.check-row input { flex: none; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--accent); }
.turnstile-slot:empty { display: none; }

/* ---------- hero ---------- */
.hero {
  max-width: 1240px; margin: 0 auto; padding: 72px 32px 88px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(460px, 100%), 1fr));
  gap: 56px 72px; align-items: start;
}
.hero-copy { display: flex; flex-direction: column; gap: 28px; max-width: 600px; }
h1 { font: 400 76px/1 var(--serif); letter-spacing: -0.02em; text-wrap: balance; }
h1 em { font-style: italic; color: var(--accent); }
.lede { font-size: 20px; line-height: 1.5; color: var(--body); max-width: 540px; }
.hero-form { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; max-width: 540px; }
.hero-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 12px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.hero-actions span { font-size: 14px; line-height: 1.45; color: var(--muted); }

/* workpaper illustration */
figure.paper { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.sheet {
  background-color: var(--card);
  border: 1px solid var(--card-border); border-radius: 3px;
  box-shadow: 0 1px 0 var(--rule-soft), 0 24px 48px -32px rgba(26,25,21,.35);
  padding: 0 28px 24px;
}
.sheet-head {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 20px; align-items: baseline;
  padding: 22px 0 12px; border-bottom: 1px solid var(--ink);
}
.sheet-head > div { display: flex; flex-direction: column; gap: 6px; }
.sheet-head > div:last-child { text-align: right; }
.sheet-k { font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.sheet-title { font: 400 24px/1.1 var(--serif); }
.sheet-meta { font: 400 13px/1.4 var(--mono); }
.row {
  display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 16px; align-items: baseline;
  padding: 14px 0; border-bottom: 1px solid var(--rule-soft);
}
.row:last-of-type { border-bottom: 0; }
.row-id { font: 400 13px/1.4 var(--mono); color: var(--muted); }
.row-text { font-size: 15px; line-height: 1.4; min-width: 0; }
.row-text span { color: var(--muted); }
.state {
  display: inline-flex; align-items: center; gap: 6px; color: var(--accent);
  font: 500 12px/1 var(--mono); letter-spacing: .04em;
}
.state.bad { color: var(--danger); }
.state.neutral { color: var(--muted); }
.sheet-foot {
  margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--ink);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px;
  font: 400 13px/1.4 var(--mono); color: var(--muted);
}
.sheet-foot b { font-weight: 400; color: var(--ink); }
figcaption { font: 400 12px/1.4 var(--mono); letter-spacing: .04em; color: var(--muted); }

/* ---------- sections ---------- */
section.block { border-top: 1px solid var(--ink); }
.section-inner { display: flex; flex-direction: column; gap: 44px; }
.section-inner.lg { gap: 48px; }
.section-head {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 24px 72px; align-items: end;
}
.section-head > div { display: flex; flex-direction: column; gap: 16px; }
h2 { font: 400 52px/1.05 var(--serif); letter-spacing: -0.015em; text-wrap: balance; }
.section-head p { font-size: 18px; line-height: 1.55; color: var(--body); max-width: 520px; }

.cards { display: grid; gap: 0 40px; border-top: 1px solid var(--ink); }
.cards.c4 { grid-template-columns: repeat(auto-fit, minmax(min(270px, 100%), 1fr)); }
.cards.c3 { grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.card { display: flex; flex-direction: column; gap: 14px; padding: 28px 0 32px; border-bottom: 1px solid var(--rule); }
.card .num { font: 400 13px/1 var(--mono); color: var(--muted); }
.card h3 { font: 400 28px/1.15 var(--serif); }
.card p { font-size: 16px; line-height: 1.6; color: var(--body); }
.card .stamp.ok { color: var(--accent); }

/* object list */
.objs { display: flex; flex-direction: column; border-top: 1px solid var(--ink); }
.obj { display: flex; flex-wrap: wrap; gap: 8px 32px; align-items: baseline; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.obj:last-child { border-bottom-color: var(--ink); }
.obj dt { flex: 0 0 180px; font: 400 26px/1.1 var(--serif); }
.obj dd { flex: 1 1 360px; min-width: 0; margin: 0; font-size: 16px; line-height: 1.55; color: var(--body); }
dl.objs { margin: 0; }

/* invite */
#invite { background: #EEE8DC; }
#invite .wrap { padding: 80px 32px 96px; gap: 48px; display: flex; flex-direction: column; }
.invite-intro { display: flex; flex-direction: column; gap: 20px; max-width: 760px; }
.invite-intro h2 { font-size: 56px; line-height: 1.03; }
.invite-intro p { font-size: 18px; line-height: 1.55; color: var(--body); }
.invite-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 40px 64px; align-items: start;
}
.col { display: flex; flex-direction: column; gap: 14px; }
.col > .stamp { padding-bottom: 12px; border-bottom: 1px solid var(--ink); }
.col ul { padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 16px; line-height: 1.55; }
.col li { display: grid; grid-template-columns: 20px 1fr; gap: 10px; }
.col li > :first-child { padding-top: 4px; color: var(--accent); }
.col li > .n { padding-top: 0; font: 400 13px/1.6 var(--mono); color: var(--muted); }
.invite-form {
  display: flex; flex-direction: column; gap: 12px; padding: 24px;
  background: var(--card); border: 1px solid var(--card-border); border-radius: 3px; position: relative;
}
.invite-form .form-title { font: 400 24px/1.15 var(--serif); }
.invite-form .btn { margin-top: 6px; }
.invite-form small { font-size: 13px; line-height: 1.5; color: var(--muted); }

/* footer */
footer { border-top: 1px solid var(--ink); }
.foot {
  max-width: 1240px; margin: 0 auto; padding: 48px 32px 56px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 32px 72px; align-items: start;
}
.foot-brand { display: flex; flex-direction: column; gap: 14px; }
.foot-brand .brand-name { display: block; }
.defn { max-width: 460px; font: 400 20px/1.35 var(--serif); }
.defn small { font: 400 13px/1 var(--mono); color: var(--muted); letter-spacing: .04em; }
.defn .dim { color: var(--muted); }
.foot-links { display: flex; flex-direction: column; gap: 12px; font-size: 14px; line-height: 1.5; color: var(--body); }
.copy { padding-top: 12px; font: 400 13px/1.5 var(--mono); color: var(--muted); }

@media (max-width: 640px) {
  .nav { padding: 20px 20px 16px; }
  .hero, .wrap, #invite .wrap, .foot { padding-left: 20px; padding-right: 20px; }
  .hero { padding-top: 48px; padding-bottom: 56px; }
  .wrap { padding-top: 48px; padding-bottom: 56px; }
  h1 { font-size: 46px; }
  h2, .invite-intro h2 { font-size: 36px; }
  .lede { font-size: 18px; }
  .sheet { padding: 0 16px 20px; }
  .row { grid-template-columns: 1fr auto; }
  .row-id { grid-column: 1 / -1; }
  .sheet-head > div:last-child { text-align: left; }
  .obj dt { flex-basis: 100%; }
}