:root {
  color-scheme: light;
  --tp-ground: #F2F2F2;
  --tp-ink: #1F292C;
  --tp-blue: #236E8A;
  --tp-iris: #D5D2E4;
  --tp-white: #FFFFFF;
  font-family: 'Reddit Sans', Arial, sans-serif;
  color: var(--tp-ink);
  background: var(--tp-ground);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; font-size: 18px; line-height: 1.6; }
a { color: var(--tp-blue); text-decoration-thickness: 1px; text-underline-offset: 4px; transition: color .16s, background-color .16s; }
a:hover { color: var(--tp-ink); background-color: #E2E8EA; text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--tp-blue); outline-offset: 5px; background: var(--tp-white); color: var(--tp-ink); }
::selection { background: var(--tp-blue); color: var(--tp-white); }
h1, h2 { font-family: 'Gilda Display', Georgia, serif; font-weight: 400; }
h1, h2, p, figure { margin: 0; }
i[data-lucide] { display: inline-flex; font-style: normal; }
i[data-lucide] > svg { display: block; width: 100%; height: 100%; }

.tp-skip { position: absolute; left: 16px; top: -90px; z-index: 20; padding: 10px 18px; background: var(--tp-white); }
.tp-skip:focus { top: 12px; }

/* The wordmark is printed in the photograph's caption, under its reading gutter. */
.tp-mast { min-height: 118px; background: var(--tp-ground) url('caption-landing.webp') center 52% / cover no-repeat; border-bottom: 8px solid var(--tp-ground); }
.tp-mast-caption { width: 352px; min-height: 110px; padding: 7px 32px 10px; background: var(--tp-ground); border-right: 8px solid var(--tp-blue); }
.tp-caption-nav { display: flex; flex-direction: column; align-items: flex-start; }
.tp-caption-nav a { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; line-height: 19px; text-decoration: none; padding-right: 5px; }
.tp-caption-nav svg, .tp-caption-nav i { width: 14px; height: 14px; flex-shrink: 0; stroke-width: 1.5; }
.tp-caption-nav a[aria-current='page'] { color: var(--tp-ink); text-decoration: underline; }
.tp-wordmark { display: inline-block; margin-top: 5px; font: 400 29px/1.05 'Gilda Display', Georgia, serif; color: var(--tp-ink); text-decoration: none; white-space: nowrap; }

/* One material field connects the opaque, square-edged overprints. */
.tp-surface { background: var(--tp-ground) var(--tp-photograph) center top / cover no-repeat; }
.tp-material-home { --tp-photograph: url('surface-opening.webp'); }
.tp-material-ghk-cu { --tp-photograph: url('copper-surface.webp'); }
.tp-material-compare { --tp-photograph: url('separate-landings.webp'); }
.tp-material-thymosin-alpha-1 { --tp-photograph: url('rain-edge.webp'); }
.tp-material-semaglutide { --tp-photograph: url('sunlit-step.webp'); }
.tp-material-about, .tp-material-contact, .tp-material-references, .tp-material-404 { --tp-photograph: url('worn-blue.webp'); }
.tp-opening { padding-top: 104px; background: var(--tp-ground) var(--tp-photograph) center 42% / cover no-repeat; }
.tp-overprint { margin-inline: 48px; background: var(--tp-ground); }
.tp-headprint { position: relative; margin-inline: 0; padding: 25px 64px 30px; border-left: 14px solid var(--tp-blue); clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 64px) calc(100% - 22px), calc(100% - 64px) 100%, 0 100%); }
.tp-headprint::after { content: ''; position: absolute; right: 0; bottom: 22px; width: 148px; height: 9px; background: var(--tp-blue); }
.tp-title-measure { max-width: 1176px; margin-inline: auto; }
.tp-reading-kind { display: flex; align-items: center; gap: 14px; color: var(--tp-blue); font-size: 16px; font-weight: 600; line-height: 1.4; margin-bottom: 13px; }
.tp-reading-kind::before { content: ''; width: 34px; height: 3px; background: currentColor; }
.tp-headprint h1 { max-width: 27ch; font-size: clamp(46px, 5.1vw, 74px); line-height: 1.035; letter-spacing: -.035em; text-wrap: balance; }
.tp-pigment { color: var(--tp-blue); }

/* A dry, layered slab projects only into the empty surface exposure. */
.tp-exposure, .tp-break { position: relative; height: 100px; }
.tp-exposure::before, .tp-exposure::after, .tp-break::before, .tp-break::after { content: ''; position: absolute; width: 25px; top: 16px; bottom: 16px; opacity: .28; background-image: repeating-linear-gradient(39deg, transparent 0 10px, var(--tp-blue) 11px 12px, transparent 13px 19px), repeating-linear-gradient(-39deg, transparent 0 13px, var(--tp-blue) 14px 15px, transparent 16px 24px); }
.tp-exposure::before, .tp-break::before { left: 8px; }
.tp-exposure::after, .tp-break::after { right: 8px; }
.tp-projection { position: absolute; right: 13%; top: -9px; width: 222px; height: 102px; border: 7px solid var(--tp-ground); background: var(--tp-ground) var(--tp-photograph) 68% 53% / 550px auto; box-shadow: 8px 8px 0 var(--tp-iris), 15px 15px 0 var(--tp-blue); }
.tp-explainprint { padding: 24px 48px 28px; }
.tp-opening-copy { max-width: 1176px; margin-inline: auto; }
.tp-lead { font-size: 21px; line-height: 1.45; max-width: 82ch; }
.tp-explainprint .tp-lead { margin-bottom: 22px; }
.tp-pilcrow { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 22px; align-items: start; }
.tp-paragraph-mark { display: block; color: var(--tp-blue); font: 400 140px/.75 'Gilda Display', Georgia, serif; }
.tp-pilcrow p { font-size: 17px; line-height: 1.48; }
.tp-reveal { min-height: 138px; display: flex; align-items: flex-end; justify-content: flex-end; }
.tp-reveal figcaption { max-width: 460px; margin: 36px 48px 20px; padding: 8px 14px; border-left: 5px solid var(--tp-blue); background: var(--tp-ground); font-size: 14px; line-height: 1.4; }

/* Large side numerals and a low blue edge make these passages overprints, not cards. */
.tp-prose-band { position: relative; margin-inline: 48px; padding: 60px 70px 66px; background: var(--tp-white); border-bottom: 8px solid var(--tp-blue); box-shadow: 12px 12px 0 rgb(31 41 44 / .16); }
.tp-passage { max-width: 790px; margin-inline: auto; position: relative; }
.tp-passage h2 { max-width: 29ch; font-size: 43px; line-height: 1.1; letter-spacing: -.02em; margin-bottom: 26px; text-wrap: balance; }
.tp-passage p { font-size: 19px; line-height: 1.65; }
.tp-passage p + p { margin-top: 18px; }
.tp-section-marker { position: absolute; left: max(28px, calc((100% - 1120px) / 2)); top: 56px; display: flex; flex-direction: column; align-items: flex-start; gap: 17px; color: var(--tp-blue); }
.tp-section-number { font: 400 76px/.9 'Gilda Display', Georgia, serif; letter-spacing: -.06em; }
.tp-section-glyph { display: block; width: 27px; height: 27px; }
.tp-section-glyph svg, .tp-section-glyph i { width: 27px; height: 27px; stroke-width: 1.5; }
.tp-break { height: 90px; }
.tp-prose-band:nth-of-type(2) { margin-left: 72px; margin-right: 24px; background: var(--tp-ground); }
.tp-prose-band:nth-of-type(3) { background: var(--tp-blue); color: var(--tp-white); border-bottom-color: var(--tp-ground); }
.tp-prose-band:nth-of-type(3) a, .tp-prose-band:nth-of-type(3) .tp-section-marker { color: var(--tp-white); }
.tp-prose-band:nth-of-type(3) a:hover, .tp-prose-band:nth-of-type(3) a:focus-visible { background: var(--tp-white); color: var(--tp-ink); }
.tp-prose-band:nth-of-type(3) a:focus-visible { outline-color: var(--tp-white); }
.tp-surface-end { height: 100px; }

/* Articles keep the material world in a smaller opening photographic band. */
.tp-sheet .tp-opening { padding-top: 56px; background-position: center 48%; }
.tp-crumbs { max-width: 1176px; margin: 0 auto 19px; font-size: 15px; }
.tp-crumbs ol { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 0; gap: 8px 14px; }
.tp-crumbs li + li::before { content: '/'; margin-right: 14px; color: var(--tp-ink); }
.tp-sheet .tp-headprint { padding-top: 24px; padding-bottom: 34px; }
.tp-sheet .tp-headprint h1 { font-size: clamp(40px, 4.3vw, 62px); max-width: 28ch; }
.tp-article-exposure { min-height: 192px; display: flex; justify-content: flex-end; align-items: flex-end; }
.tp-article-exposure figcaption { max-width: 430px; margin: 30px 48px 22px; padding: 9px 14px; border-left: 5px solid var(--tp-blue); font-size: 14px; line-height: 1.4; background: var(--tp-ground); }
.tp-deckprint { padding: 34px 70px; border-bottom: 7px solid var(--tp-blue); }
.tp-deckprint .tp-lead { max-width: 790px; margin-inline: auto; }
.tp-sheet .tp-prose-band { padding-top: 55px; padding-bottom: 59px; }

.tp-footer { padding: 48px max(48px, calc((100% - 1176px) / 2)) 34px; background: var(--tp-ground); border-top: 12px solid var(--tp-blue); }
.tp-footer-reading { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 40px; padding-bottom: 32px; }
.tp-footer-brand { max-width: 8ch; font: 400 48px/1.05 'Gilda Display', Georgia, serif; letter-spacing: -.03em; color: var(--tp-blue); }
.tp-footer nav { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; font-size: 16px; }
.tp-guide-sentence { max-width: 65ch; font-size: 16px; line-height: 1.5; }
.tp-copyright { font-size: 14px; margin-top: 12px; }
.tp-missing .tp-deckprint { padding-block: 44px 65px; }
.tp-missing p + p { margin-top: 20px; }

@media (min-width: 1700px) {
  .tp-opening { padding-top: 128px; }
}

@media (max-width: 1100px) and (min-width: 541px) {
  .tp-prose-band { padding-left: 142px; padding-right: 45px; }
  .tp-section-marker { left: 28px; }
  .tp-section-number { font-size: 64px; }
  .tp-prose-band:nth-of-type(2) { margin-inline: 48px; }
  .tp-headprint { padding-inline: 42px; }
  .tp-headprint h1 { font-size: clamp(42px, 5.6vw, 62px); }
  .tp-explainprint { padding-inline: 30px; }
  .tp-pilcrow { grid-template-columns: 65px minmax(0, 1fr); gap: 15px; }
  .tp-paragraph-mark { font-size: 105px; }
  .tp-passage h2 { font-size: 36px; }
}

@media (max-width: 540px) {
  body { font-size: 16px; }
  .tp-mast { min-height: 76px; height: 76px; padding-top: 24px; border-bottom: 0; background-position: center 48%; }
  .tp-mast-caption { width: 100%; min-height: 52px; height: 52px; padding: 3px 16px 4px; border-right: 5px solid var(--tp-blue); }
  .tp-caption-nav { flex-direction: row; gap: 21px; line-height: 18px; }
  .tp-caption-nav a { font-size: 13px; line-height: 18px; gap: 5px; padding: 0; }
  .tp-caption-nav svg, .tp-caption-nav i { width: 12px; height: 12px; }
  .tp-wordmark { font-size: 24px; line-height: 24px; margin-top: 0; }
  .tp-home, .tp-home .tp-opening { background-image: none; }
  .tp-opening, .tp-sheet .tp-opening { padding-top: 0; }
  .tp-overprint, .tp-prose-band, .tp-prose-band:nth-of-type(2) { margin-inline: 0; }
  .tp-headprint { padding: 17px 16px 19px; border-left-width: 5px; clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 25px) calc(100% - 9px), calc(100% - 25px) 100%, 0 100%); }
  .tp-headprint::after { width: 62px; height: 4px; bottom: 9px; }
  .tp-reading-kind { font-size: 14px; line-height: 20px; margin-bottom: 8px; gap: 9px; }
  .tp-reading-kind::before { width: 22px; height: 2px; }
  .tp-headprint h1 { max-width: none; font-size: 25px; line-height: 1.12; letter-spacing: -.02em; }
  .tp-exposure { height: 90px; }
  .tp-exposure::before, .tp-exposure::after, .tp-break::before, .tp-break::after { width: 12px; }
  .tp-exposure::before, .tp-break::before { left: 3px; }
  .tp-exposure::after, .tp-break::after { right: 3px; }
  .tp-projection { width: 126px; height: 62px; top: 12px; right: 32px; border-width: 6px; background: var(--tp-ground); box-shadow: 6px 6px 0 var(--tp-iris), 8px 8px 0 var(--tp-blue); }
  .tp-explainprint { padding: 15px 16px 19px; }
  .tp-lead { font-size: 17px; line-height: 1.4; }
  .tp-explainprint .tp-lead { margin-bottom: 14px; }
  .tp-pilcrow { display: block; }
  .tp-paragraph-mark { font-size: 43px; line-height: 31px; height: 31px; margin-bottom: 9px; }
  .tp-pilcrow p { font-size: 16px; line-height: 1.4; }
  .tp-reveal { min-height: 210px; background: var(--tp-ground) var(--tp-photograph) center 38% / cover no-repeat; }
  .tp-reveal figcaption { margin: 60px 16px 14px; max-width: 290px; font-size: 13px; border-left-width: 3px; }
  .tp-prose-band, .tp-sheet .tp-prose-band { padding: 30px 22px 38px; border-bottom-width: 5px; box-shadow: none; }
  .tp-section-marker { position: static; flex-direction: row; align-items: center; gap: 18px; margin-bottom: 22px; }
  .tp-section-number { font-size: 51px; }
  .tp-section-glyph, .tp-section-glyph svg, .tp-section-glyph i { width: 24px; height: 24px; }
  .tp-passage h2 { font-size: 31px; line-height: 1.12; margin-bottom: 22px; }
  .tp-passage p { font-size: 17px; line-height: 1.6; }
  .tp-passage p + p { margin-top: 17px; }
  .tp-break { height: 60px; }
  .tp-home .tp-break { background: var(--tp-ground) var(--tp-photograph) center / cover no-repeat; }
  .tp-surface-end { height: 62px; }
  .tp-sheet .tp-headprint { padding: 19px 16px 23px; }
  .tp-sheet .tp-headprint h1 { font-size: 33px; line-height: 1.1; }
  .tp-crumbs { font-size: 13px; line-height: 1.4; margin-bottom: 16px; }
  .tp-crumbs ol { gap: 5px 10px; }
  .tp-crumbs li + li::before { margin-right: 10px; }
  .tp-article-exposure { min-height: 156px; }
  .tp-article-exposure figcaption { margin-inline: 16px; font-size: 13px; max-width: 295px; border-left-width: 3px; }
  .tp-deckprint { padding: 25px 22px; border-bottom-width: 5px; }
  .tp-footer { padding: 32px 22px 26px; border-top-width: 7px; }
  .tp-footer-reading { grid-template-columns: 1fr 1fr; gap: 25px 15px; }
  .tp-footer-brand { grid-column: 1 / -1; font-size: 39px; max-width: none; }
  .tp-guide-sentence { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}