/* Homepage-only refinements. Shared site.css and informational layouts remain intact. */
.portal .skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 18px; background: var(--ink); color: white; border-radius: 8px; }
.portal .skip-link:focus { top: 12px; }
.portal main { padding-bottom: 52px; }
.portal-intro { padding: 34px 0 30px; }
.intro-layout { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.portal-tagline { margin: 0; color: var(--muted); font-size: clamp(1rem, 2vw, 1.12rem); font-weight: 500; line-height: 1.55; letter-spacing: normal; }
.intro-link, .text-link { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; }
.intro-link { flex-shrink: 0; padding-bottom: 3px; font-size: .88rem; }
.tool-section { padding-bottom: 32px; scroll-margin-top: 90px; }
.collection-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 21px; border-top: 1px solid var(--line); margin-bottom: 22px; }
.collection-title { display: flex; align-items: center; gap: 12px; }
.collection-title h2 { font-size: clamp(1.5rem, 3vw, 1.85rem); letter-spacing: -.035em; }
.collection-count { display: inline-grid; place-items: center; min-width: 28px; height: 26px; padding: 0 8px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); background: var(--surface); font-size: .76rem; font-weight: 700; }
.collection-heading p { margin: 8px 0 0; color: var(--muted); font-size: .9rem; }
.collection-heading > a { flex-shrink: 0; font-size: .86rem; font-weight: 650; text-decoration: none; }
.tools-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.tool-card { min-width: 0; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); overflow: hidden; box-shadow: 0 3px 8px rgba(23,32,42,.02), 0 14px 35px rgba(23,32,42,.035); transition: box-shadow .18s ease, border-color .18s ease; }
.tool-card:hover, .tool-card:focus-within { border-color: #b7c8e6; box-shadow: 0 6px 14px rgba(23,32,42,.035), 0 18px 40px rgba(23,32,42,.07); }
.tool-preview { --preview-inset: 14px; position: relative; flex: none; display: block; aspect-ratio: 2.05; width: 100%; padding: 0; background: var(--surface); border-bottom: 1px solid var(--line); line-height: 0; }
.tool-preview img { position: absolute; top: var(--preview-inset); left: var(--preview-inset); display: block; width: calc(100% - var(--preview-inset) - var(--preview-inset)); height: calc(100% - var(--preview-inset) - var(--preview-inset)); object-fit: contain; object-position: center; }
.tool-preview:focus-visible { outline: 3px solid var(--brand); outline-offset: -4px; border-radius: 0; }
.tool-content { display: flex; flex: 1; flex-direction: column; padding: 22px 24px 20px; background: var(--brand-soft); }
.tool-title-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.tool-title-row h3 { min-width: 0; font-size: clamp(1.15rem, 2vw, 1.3rem); line-height: 1.3; letter-spacing: -.025em; }
.tool-title-row h3 a { color: var(--ink); text-decoration: none; }
.tool-title-row h3 a:hover { color: var(--brand); }
.tool-number { color: #697789; font-size: .72rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.tool-description { margin: 10px 0 0; color: #465665; font-size: .94rem; line-height: 1.65; }
.tool-summary { margin: 9px 0 0; color: var(--muted); font-size: .82rem; line-height: 1.55; }
.tool-tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 16px 0 19px; }
.tool-tags li { border: 1px solid #e1e7ed; background: #f7f9fb; color: #536273; padding: 3px 8px; border-radius: 6px; font-size: .7rem; font-weight: 650; line-height: 1.6; }
.tool-actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: auto; padding-top: 16px; border-top: 1px solid #e8ecf0; }
.tool-actions .button { min-height: 40px; padding: 0 15px; border-radius: 9px; box-shadow: none; font-size: .83rem; }
.tool-actions .guide-link { color: var(--muted); font-size: .8rem; font-weight: 650; text-decoration: none; }
.tool-actions .guide-link:hover { color: var(--brand-dark); }
.tool-actions .external-arrow { font-size: 1.1rem; line-height: 1; }
.portal-about { padding: 30px 0 36px; }
.about-layout { display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; border-top: 1px solid var(--line); padding-top: 32px; }
.portal-about .eyebrow { font-size: .7rem; margin-bottom: 14px; }
.portal-about h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); line-height: 1.18; }
.about-copy p { color: var(--muted); font-size: .93rem; margin: 0 0 12px; }
.about-copy .text-link { margin-top: 3px; font-size: .88rem; }
.portal-help .trust-strip { display: flex; align-items: center; justify-content: space-between; gap: 26px; padding: 25px 28px; border-radius: 18px; }
.portal-help h2 { font-size: 1.25rem; letter-spacing: -.02em; }
.portal-help p { font-size: .85rem; }
.portal-help .actions { margin: 0; flex-shrink: 0; gap: 8px; }
.portal-help .button { min-height: 40px; padding: 0 13px; border-radius: 9px; font-size: .8rem; }
@media (max-width: 860px) {
  .tool-content { padding: 19px; }
  .tools-grid { gap: 18px; }
  .tool-preview { padding: 10px; }
  .about-layout { gap: 30px; }
  .portal-help .trust-strip { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 620px) {
  .portal .navbar { flex-wrap: wrap; align-items: center; gap: 8px 14px; }
  .portal .nav-links { justify-content: flex-start; }
  .portal-intro { padding: 25px 0 24px; }
  .intro-layout { align-items: flex-start; gap: 15px; flex-direction: column; }
  .intro-link { font-size: .8rem; }
  .collection-heading { align-items: flex-start; flex-direction: column; gap: 9px; margin-bottom: 18px; padding-top: 18px; }
  .collection-heading p { font-size: .84rem; }
  .collection-heading > a { font-size: .8rem; }
  .tools-grid { grid-template-columns: 1fr; gap: 20px; }
  .tool-card { border-radius: 16px; }
  .tool-preview { aspect-ratio: 1.85; padding: 12px; }
  .tool-content { padding: 20px; }
  .tool-title-row h3 { font-size: 1.2rem; }
  .tool-actions .button { min-height: 44px; }
  .tool-actions .guide-link { padding: 10px 0; }
  .tool-section { scroll-margin-top: 126px; }
  .portal-about { padding: 16px 0 26px; }
  .about-layout { grid-template-columns: 1fr; gap: 21px; padding-top: 27px; }
  .portal-help .trust-strip { padding: 23px 20px; gap: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html:has(body.portal) { scroll-behavior: auto; }
  .tool-card { transition: none; }
}