:root {
  color-scheme: light;
  --reference-ink: #192737;
  --reference-muted: #596b7e;
  --reference-green: #387a4c;
  --reference-border: #dce5ec;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--reference-ink);
  background: #f6f8fa;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
a { color: var(--reference-green); text-underline-offset: 3px; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
button:focus-visible, a:focus-visible { outline: 3px solid #256dba; outline-offset: 4px; }
[hidden] { display: none !important; }

.reference-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px max(24px, calc((100% - 1400px) / 2));
  background: #fff;
  border-bottom: 1px solid var(--reference-border);
}
.reference-brand { display: inline-flex; align-items: center; gap: 12px; color: var(--reference-ink); text-decoration: none; white-space: nowrap; }
.reference-brand img { display: block; }
.reference-brand strong { font-size: 22px; letter-spacing: -0.025em; }
.reference-header__actions { display: flex; align-items: center; gap: 24px; }
.reference-header__actions > a { font-size: 14px; font-weight: 650; }
.reference-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 12px 18px; border-radius: 10px; background: var(--reference-green); color: #fff; text-decoration: none; text-align: center; }
.reference-cta:hover { background: #2d623e; }

main { width: min(1400px, calc(100% - 48px)); margin: 0 auto; padding: 52px 0 36px; }
.reference-intro { margin-bottom: 32px; max-width: 900px; }
.reference-eyebrow { margin: 0 0 14px; color: var(--reference-green); font-size: 13px; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(32px, 4vw, 52px); letter-spacing: -0.04em; line-height: 1.1; }
.reference-intro > p:not(.reference-eyebrow) { color: var(--reference-muted); font-size: 17px; line-height: 1.65; }
.reference-navigation { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.reference-navigation a { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 16px; border: 1px solid var(--reference-border); border-radius: 9px; background: #fff; color: var(--reference-ink); font-size: 14px; font-weight: 650; text-decoration: none; }
.reference-navigation a:hover { border-color: var(--reference-green); color: var(--reference-green); }
.reference-notice { padding: 14px 18px; background: #fff; border: 1px solid var(--reference-border); border-radius: 10px; }

.reference-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 28px; }
.reference-card { min-width: 0; overflow: hidden; background: #fff; border: 1px solid var(--reference-border); border-radius: 16px; scroll-margin-top: 24px; }
.reference-card:target { outline: 2px solid var(--reference-green); outline-offset: 4px; }
.reference-card__heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 20px; padding: 22px 24px 18px; }
h2 { margin: 0; font-size: 20px; line-height: 1.3; letter-spacing: -0.02em; }
.reference-card__heading > span { color: var(--reference-muted); font-size: 12px; }
figure { margin: 0; }
.reference-card figure > img { display: block; width: 100%; height: auto; border-top: 1px solid var(--reference-border); border-bottom: 1px solid var(--reference-border); }
.reference-card--mobile figure { background: #f0f3f6; }
.reference-card--mobile figure > img { width: min(390px, 100%); margin: 0 auto; }
figcaption { padding: 17px 24px; color: var(--reference-muted); font-size: 14px; line-height: 1.6; background: #fff; }
.reference-card__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; padding: 0 24px 22px; }
.reference-card__actions > a { display: inline-flex; align-items: center; min-height: 44px; font-size: 14px; font-weight: 650; }
.reference-zoom { min-height: 44px; padding: 10px 16px; color: var(--reference-ink); background: #f6f8fa; border: 1px solid var(--reference-border); border-radius: 9px; font-size: 14px; font-weight: 650; }
.reference-zoom:hover { background: #eaf0f4; }
.reference-footer { max-width: 880px; margin: 28px 0 0; color: var(--reference-muted); font-size: 14px; line-height: 1.65; }

.reference-dialog { width: min(1328px, calc(100% - 32px)); max-height: calc(100dvh - 32px); margin: auto; padding: 20px; color: var(--reference-ink); background: #fff; border: 0; border-radius: 14px; box-shadow: 0 24px 80px #0005; }
.reference-dialog::backdrop { background: #101c2bba; }
.reference-dialog__heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.reference-dialog__heading button { min-height: 44px; padding: 10px 16px; background: #f0f3f6; border: 1px solid var(--reference-border); border-radius: 8px; color: var(--reference-ink); white-space: nowrap; }
.reference-dialog figure > img { display: block; max-width: 100%; max-height: calc(100dvh - 220px); width: auto; height: auto; margin: auto; object-fit: contain; }
.reference-dialog figcaption { padding: 14px 0; }
.reference-dialog > a { display: inline-flex; align-items: center; min-height: 44px; font-size: 14px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 900px) {
  .reference-gallery { grid-template-columns: 1fr; }
  main { max-width: 760px; }
}
@media (max-width: 600px) {
  .reference-header { align-items: flex-start; flex-direction: column; padding: 16px 20px; gap: 16px; }
  .reference-header__actions { width: 100%; justify-content: space-between; gap: 16px; }
  .reference-header__actions > a { font-size: 13px; }
  .reference-header__actions .reference-cta { padding: 10px 12px; }
  main { width: calc(100% - 32px); padding-top: 32px; }
  .reference-intro > p:not(.reference-eyebrow) { font-size: 16px; }
  .reference-navigation { gap: 8px; }
  .reference-navigation a { padding: 10px 12px; }
  .reference-gallery { gap: 20px; }
  .reference-card__heading { padding: 18px 18px 16px; }
  .reference-card__heading h2 { font-size: 19px; }
  figcaption { padding: 16px 18px; }
  .reference-card__actions { padding: 0 18px 18px; }
  .reference-dialog { width: calc(100% - 20px); max-height: calc(100dvh - 20px); padding: 14px; }
  .reference-dialog__heading { align-items: flex-start; }
  .reference-dialog__heading h2 { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}