:root {
  --text: #18202b;
  --muted: #586273;
  --bg: #ffffff;
  --soft: #f3f5f8;
  --border: #dfe3ea;
  --input: #c6ccd6;
  --accent: #1f5fcc;
  --accent-hover: #184ea8;
  --danger: #b42318;
  --radius: 10px;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}
main { flex: 1 0 auto; }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

h1 { font-size: 40px; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 16px; }
h2 { font-size: 28px; line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 16px; }
h3 { font-size: 19px; line-height: 1.3; margin: 0 0 8px; }

.site-header { border-bottom: 1px solid var(--border); background: var(--bg); }
.header-inner { display: flex; align-items: center; align-content: center; justify-content: space-between; gap: 4px 16px; min-height: 60px; padding: 10px 20px; flex-wrap: wrap; }
.logo { font-weight: 700; font-size: 19px; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.nav { display: flex; gap: 18px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.nav a:hover { color: var(--text); }
.nav a[aria-current="page"] {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.hero { background: var(--soft); padding: 56px 0; border-bottom: 1px solid var(--border); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  grid-template-areas: "copy card" "checks card";
  column-gap: 40px;
  row-gap: 8px;
}
.hero-copy { grid-area: copy; align-self: end; }
.search-card { grid-area: card; align-self: center; }
.checks { grid-area: checks; align-self: start; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.06em; font-size: 13px; font-weight: 600; color: var(--accent); margin: 0 0 10px; }
.lead { font-size: 19px; color: var(--muted); margin: 0 0 8px; }
.checks { list-style: none; padding: 0; margin: 0; }
.checks li { position: relative; padding-left: 28px; margin: 6px 0; }
.checks li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.field { margin-bottom: 14px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.lookup-form label { display: block; font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.optional { font-weight: 400; color: var(--muted); }
.lookup-form input,
.lookup-form select {
  width: 100%;
  height: 50px;
  font: inherit;
  line-height: 1.4;
  padding: 12px 14px;
  border: 1px solid var(--input);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}
.lookup-form select {
  -webkit-appearance: none;
  appearance: none;
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23586273' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  cursor: pointer;
}
.lookup-form input:focus,
.lookup-form select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.lookup-form input[aria-invalid="true"] { border-color: var(--danger); }
.lookup-form input[aria-invalid="true"]:focus { outline-color: var(--danger); }
.form-error { color: var(--danger); font-size: 15px; margin: 0 0 12px; }
.form-error:empty { display: none; }
.form-note { font-size: 13px; color: var(--muted); margin: 12px 0 0; line-height: 1.5; }

.btn {
  display: inline-block;
  width: 100%;
  font: inherit;
  font-weight: 600;
  font-size: 18px;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  padding: 14px 18px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}
.btn:hover { background: var(--accent-hover); color: #fff; }
.btn:disabled { opacity: 0.7; cursor: default; }
.btn-inline { width: auto; padding: 12px 28px; }

.section { padding: 56px 0; }
.section-tight { padding: 8px 0 56px; }
.section-soft { background: var(--soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
main > .section-soft:last-child { border-bottom: 0; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; list-style: none; padding: 0; margin: 0; counter-reset: step; }
.steps li { counter-increment: step; }
.steps li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}
.steps p { color: var(--muted); margin: 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.list { padding-left: 20px; margin: 0; }
.list li { margin: 8px 0; }
.note { color: var(--muted); font-size: 15px; }

.faq > * { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--border); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: 10px 0 0; color: var(--muted); }
.cta { text-align: center; }

.page-head { padding: 40px 0 8px; }
.page-head h1 { font-size: 34px; margin-bottom: 4px; }
.prose > * { max-width: 760px; }
.prose h2 { font-size: 22px; margin: 32px 0 10px; }
.prose ul { padding-left: 20px; }
.prose li { margin: 6px 0; }

.site-footer { border-top: 1px solid var(--border); padding: 32px 0 40px; font-size: 14px; color: var(--muted); background: var(--bg); }
.disclosure { margin: 0 0 12px; max-width: 880px; }
.footer-nav { display: flex; gap: 18px; flex-wrap: wrap; margin: 18px 0 8px; }
.footer-nav a { color: var(--muted); }
.copyright { margin: 0; }

@media (max-width: 860px) {
  .hero { padding: 32px 0; }
  .hero-grid { grid-template-columns: 1fr; grid-template-areas: "copy" "card" "checks"; row-gap: 20px; }
  .search-card, .checks { max-width: 560px; }
  .two-col { grid-template-columns: 1fr; gap: 36px; }
  .steps { grid-template-columns: 1fr; gap: 20px; }
  .steps li { display: grid; grid-template-columns: 32px 1fr; column-gap: 14px; }
  .steps li::before { grid-row: span 2; margin-bottom: 0; }
  .steps h3 { margin: 4px 0 4px; }
  .section { padding: 40px 0; }
  .section-tight { padding: 4px 0 40px; }
  .page-head { padding: 28px 0 4px; }
  h1 { font-size: 32px; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  h1, .page-head h1 { font-size: 28px; }
  h2 { font-size: 24px; }
  .lead { font-size: 17px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .card { padding: 18px; }
  .nav { gap: 14px; }
}