:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #242521;
  background: #f5f4ef;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
  --paper: #fffefa;
  --muted: #63665d;
  --line: #d8d9cf;
  --ink: #242521;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-width: 280px; }
a { color: inherit; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
button, input, select { font: inherit; }
button, .button { -webkit-tap-highlight-color: transparent; }
button, .button, input, select { border-radius: 3px; }
button, .button { cursor: pointer; }
:focus-visible { outline: 3px solid #677257; outline-offset: 4px; }
.skip-link { position: absolute; top: 12px; left: 20px; z-index: 2; padding: 10px 16px; background: var(--paper); transform: translateY(-200%); }
.skip-link:focus { transform: none; }
.shell { width: min(100% - 64px, 1080px); margin-inline: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 27px; border-bottom: 1px solid var(--line); }
.brand { font-size: 25px; font-weight: 600; letter-spacing: -0.06em; text-decoration: none; }
.brand-mark { font-size: 11px; margin-left: 12px; font-weight: 400; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
nav { display: flex; gap: 25px; font-size: 13px; }
nav a { text-decoration: none; }
nav a[aria-current="page"] { text-decoration: underline; }
main { padding-block: 66px 82px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(32px, 5vw, 49px); font-weight: 450; letter-spacing: -0.045em; line-height: 1.13; margin-bottom: 22px; max-width: 760px; }
h2 { font-size: 24px; letter-spacing: -0.025em; font-weight: 500; line-height: 1.3; margin-bottom: 15px; }
h3 { font-size: 17px; font-weight: 600; }
p { margin-bottom: 20px; }
.eyebrow { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.17em; color: var(--muted); margin-bottom: 18px; }
.lead { color: var(--muted); font-size: 17px; max-width: 660px; margin-bottom: 32px; }
.home-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.7fr); gap: 76px; align-items: start; }
.home-intro { padding-top: 12px; }
.panel { background: var(--paper); border: 1px solid var(--line); padding: 32px; }
.lookup-panel { margin-top: 38px; }
.explanation { border-top: 2px solid var(--ink); padding-top: 25px; margin-top: 15px; }
.explanation p { color: var(--muted); font-size: 14px; }
.explanation ol { margin: 24px 0 0; padding-left: 22px; }
.explanation li { padding-left: 8px; margin-bottom: 22px; font-size: 14px; }
.explanation li::marker { color: var(--muted); }
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
input, select { display: block; width: 100%; min-height: 46px; border: 1px solid #a8ada0; color: var(--ink); background: #fff; padding: 10px 12px; }
input::placeholder { color: #75786f; opacity: 1; }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: #8c3b2d; }
input:disabled, select:disabled { color: var(--muted); background: #f1f1eb; }
input.id-input { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 14px; text-transform: uppercase; }
.field { margin-bottom: 22px; }
.hint { font-size: 12px; line-height: 1.5; color: var(--muted); margin: 8px 0 0; }
.optional { font-weight: 400; color: var(--muted); }
.inline-form { display: flex; align-items: start; gap: 10px; }
.inline-form input { flex: 1; min-width: 0; }
button, .button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; border: 1px solid var(--ink); padding: 10px 19px; color: var(--paper); background: var(--ink); font-size: 13px; font-weight: 500; text-decoration: none; line-height: 1.7; }
button:hover, .button:hover { background: #41443a; }
button:disabled { opacity: 0.55; cursor: not-allowed; }
.secondary { color: var(--ink); background: transparent; border-color: #a8ada0; }
.secondary:hover { background: #edeee6; }
.danger-button { color: #843e30; background: transparent; border-color: #a5776b; }
.danger-button:hover { background: #f9eee9; }
.form-message { font-size: 14px; margin: 18px 0 0; }
.form-message:empty { display: none; }
.form-message[data-tone="error"] { color: #87382b; }
.form-message[data-tone="success"] { color: #365737; }
.comparison { font-size: 16px; font-weight: 550; line-height: 1.6; border-left: 3px solid #6c775c; padding: 13px 0 13px 20px; margin: 28px 0 0; }
.site-footer { display: flex; justify-content: space-between; gap: 40px; border-top: 1px solid var(--line); padding-block: 25px 35px; color: var(--muted); font-size: 12px; }
.site-footer p { margin: 0; max-width: 700px; }
.footer-label { white-space: nowrap; letter-spacing: 0.06em; }
.verify-main { max-width: 820px; }
.back-link { display: inline-block; margin-bottom: 30px; font-size: 13px; color: var(--muted); }
.verification-card { padding: 38px; }
.status-label { display: inline-block; border: 1px solid #c9ccbf; padding: 3px 10px; color: #555c4c; font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 23px; }
.status-label[data-tone="success"] { background: #eaf0e3; border-color: #b6c5a8; color: #34502b; }
.status-label[data-tone="error"] { background: #f5eae4; border-color: #cfb4a8; color: #803d2f; }
.status-label[data-tone="warning"] { background: #f4eedc; border-color: #d4c8a6; color: #68592e; }
.verification-card h1 { font-size: clamp(30px, 4vw, 40px); margin-bottom: 15px; }
.status-description { color: var(--muted); max-width: 640px; }
.details { margin: 28px 0 0; }
.detail-row { display: grid; grid-template-columns: 145px minmax(0, 1fr); gap: 24px; padding-block: 14px; border-top: 1px solid var(--line); }
dt { color: var(--muted); font-size: 13px; }
dd { margin: 0; font-size: 14px; overflow-wrap: anywhere; }
.monospace { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13px; }
.issued-canonical { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.admin-heading { display: flex; justify-content: space-between; gap: 24px; align-items: start; }
.admin-heading h1 { font-size: clamp(32px, 4vw, 42px); }
.private-label { white-space: nowrap; margin-top: 5px; }
.token-panel { margin-bottom: 28px; max-width: 650px; }
.token-panel .field { margin-bottom: 0; }
.admin-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr); gap: 28px; align-items: start; }
.admin-grid .panel { padding: 28px; }
.form-subtitle { font-size: 13px; color: var(--muted); }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.catalog-panel { margin-top: 28px; }
.catalog-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.catalog-group { min-width: 0; border-top: 1px solid var(--line); }
.catalog-group summary { padding-block: 17px; font-size: 16px; font-weight: 600; cursor: pointer; }
.catalog-create { padding-bottom: 24px; }
.catalog-list { border-top: 1px solid var(--line); }
.catalog-empty { margin: 17px 0 0; color: var(--muted); font-size: 13px; }
.catalog-entry { padding-block: 20px; border-bottom: 1px solid var(--line); }
.catalog-entry:last-child { border-bottom: 0; padding-bottom: 0; }
.catalog-entry-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.catalog-entry-heading .status-label { margin: 0; }
.catalog-entry .field { margin-bottom: 12px; }
.catalog-entry .actions { margin-top: 12px; }
.certificate-output { margin-top: 36px; scroll-margin-top: 24px; }
.certificate-output:focus { outline-offset: 6px; }
.certificate-heading { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
.certificate-heading h2 { font-size: 28px; }
.certificate-heading .brand { margin-bottom: 10px; }
.certificate-body { display: grid; grid-template-columns: minmax(0, 1fr) 200px; gap: 38px; align-items: center; }
.certificate-body .details { margin-top: 12px; }
.qr-block { text-align: center; margin: 15px 0 0; }
.qr-block canvas { display: block; width: 180px; max-width: 100%; height: auto; margin-inline: auto; image-rendering: pixelated; }
.qr-block figcaption { color: var(--muted); font-size: 12px; margin-top: 9px; overflow-wrap: anywhere; }
.verification-url { font-size: 12px; overflow-wrap: anywhere; margin: 23px 0 0; }
.print-note { font-size: 11px; color: var(--muted); margin: 16px 0 0; }

@media (max-width: 820px) {
  .shell { width: min(100% - 40px, 1080px); }
  .home-layout { gap: 35px; grid-template-columns: 1fr; }
  .explanation { margin-top: 0; }
  .explanation ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .admin-grid { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: 1fr; }
  .brand-mark { display: none; }
  main { padding-block: 42px 60px; }
}

@media (max-width: 540px) {
  .shell { width: calc(100% - 32px); }
  .site-header { gap: 16px; padding-block: 20px; }
  nav { gap: 16px; font-size: 12px; }
  .panel, .verification-card, .admin-grid .panel { padding: 23px; }
  .inline-form { flex-direction: column; }
  .inline-form button { width: 100%; }
  .explanation ol { display: block; }
  .site-footer { flex-direction: column; gap: 12px; }
  .detail-row { grid-template-columns: 1fr; gap: 5px; }
  .field-pair { grid-template-columns: 1fr; gap: 0; }
  .certificate-body { grid-template-columns: 1fr; gap: 18px; }
  .certificate-heading { flex-direction: column; gap: 5px; }
  .certificate-heading .status-label { margin-bottom: 10px; }
  .admin-heading { display: block; }
  .private-label { margin-bottom: 20px; }
  .actions { flex-direction: column; }
  .actions > * { width: 100%; }
}

@media print {
  @page { margin: 18mm; }
  html, body { background: #fff; color: #000; }
  body > *, main > * { display: none !important; }
  body > main { display: block !important; }
  main > #issued-certificate:not([hidden]) { display: block !important; }
  .shell { width: 100%; max-width: none; margin: 0; }
  main { padding: 0; }
  #issued-certificate { margin: 0; padding: 0; border: 0; background: #fff; }
  #issued-certificate .no-print { display: none !important; }
  .certificate-heading { display: flex; flex-direction: row; }
  .certificate-body { display: grid; grid-template-columns: minmax(0, 1fr) 180px; gap: 22px; }
  .detail-row { grid-template-columns: 115px minmax(0, 1fr); gap: 18px; padding-block: 8px; }
  .certificate-output { break-inside: avoid; }
  .status-label { color: #000 !important; background: #fff !important; border-color: #777 !important; }
  .comparison { border-color: #555; }
  a { text-decoration: none; }
  .qr-block canvas { width: 170px; }
}