/* Growth: certificate, sharing, criteria, walkthrough placeholders. Tokens only (see style.css :root). */
.cert { background: var(--surface); border: 2px solid var(--teal); outline: 1px solid var(--line); outline-offset: 6px; border-radius: var(--r); padding: 2rem 1.5rem; margin: 1.5rem 0 2rem; text-align: center; box-shadow: var(--shadow-2); }
.cert-brand { font-weight: 800; color: var(--teal); letter-spacing: .04em; }
.cert-kicker { text-transform: uppercase; letter-spacing: .12em; font-size: .85rem; color: var(--muted); }
.cert-to { margin: 1.2rem 0 .2rem; color: var(--muted); }
.cert-name { font-size: clamp(1.7rem, 6vw, 2.6rem); font-weight: 800; line-height: 1.15; border-bottom: 2px solid var(--coral); display: inline-block; padding: 0 .5rem .2rem; }
.cert-text { max-width: 34rem; margin: 1rem auto; }
.cert-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: .6rem; margin: 1.2rem 0; text-align: left; }
.cert-facts div { border-top: 1px solid var(--line); padding-top: .4rem; }
.cert-facts dt { font-size: .8rem; color: var(--muted); }
.cert-facts dd { margin: 0; font-weight: 700; }
.cert-hash code, .cert-url { font-size: .78rem; word-break: break-all; }
.cert-hash, .cert-verify, .cert-note { font-size: .85rem; color: var(--muted); }
.cert-valid { color: var(--band-green); }
.cert-criteria { padding-left: 1.2rem; }
.cert-criteria li { margin-bottom: .8rem; }
.cert-criteria li.is-done strong::after { content: " ✓"; color: var(--band-green); }
.share { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.copy-field { width: 100%; }
.howto-video video, .howto-steps img { display: block; width: 100%; height: auto; border-radius: var(--r); border: 1px solid var(--line); }
.howto-steps { list-style: none; padding: 0; display: grid; gap: 1.5rem; }
.howto-steps figure, .howto-video { margin: 0; }
.howto-steps figcaption, .howto-video figcaption { margin-top: .6rem; color: var(--muted); }
.howto-steps figcaption strong { display: block; color: var(--ink); }
@media (min-width: 48rem) {
  .howto-steps { grid-template-columns: repeat(3, 1fr); }
  .cert-facts { grid-template-columns: repeat(4, 1fr); }
  .cert { padding: 3rem; }
}
@media print {
  .site-header, .site-footer, .no-print, .skip, .install-hint, .sample-banner, .app-side, .app-top, .app-tabs, .app-footer { display: none !important; }
  body { background: #fff; color: #10292d; }
  .page-cert-print .cert { box-shadow: none; margin: 0; page-break-inside: avoid; }
}
.tag-warn { color: var(--band-red); font-weight: 700; }