:root { --pi-blue: #173e7d; --pi-yellow: #f5c447; --pi-paper: #f4f3ef; --pi-ink: #16232f; --pi-line: rgb(22 35 47 / 18%); }
.pi-case { color: var(--pi-ink); background: #101010; }
.pi-case main { background: var(--pi-paper); }
.pi-case .button, .pi-case .menu-toggle { background: var(--pi-yellow); border-color: var(--pi-yellow); color: #15253d; }
.pi-case .menu-toggle span { background: #15253d; }
.pi-photo { margin: 0; min-width: 0; }
.pi-shell { width: min(1520px, calc(100% - 96px)); margin-inline: auto; }
.pi-wide { width: min(1760px, calc(100% - 48px)); margin-inline: auto; }
.pi-kicker { margin: 0; font-size: 12px; line-height: 1.5; letter-spacing: .09em; text-transform: uppercase; }
.pi-hero { background: var(--pi-blue); color: #fff; }
.pi-hero__heading { display: grid; grid-template-columns: 1.4fr 1fr; align-items: end; gap: 48px; padding-block: clamp(44px, 5vw, 80px); }
.pi-hero h1 { margin: 22px 0 0; font: 400 clamp(76px, 9vw, 150px)/.98 var(--display); letter-spacing: -.035em; }
.pi-hero__lead { padding-bottom: 8px; }
.pi-hero__lead p { margin: 0 0 24px; font-size: clamp(22px, 2.1vw, 34px); line-height: 1.35; }
.pi-hero__lead > span { font-size: 17px; line-height: 1.5; color: #dce6f6; }
.pi-photo > a { display: block; }
.pi-photo img { display: block; width: 100%; height: auto; object-fit: contain; }
.pi-photo figcaption { padding-top: 14px; font-size: 14px; line-height: 1.5; }
.pi-hero__photo { width: min(1920px, 100%); margin-inline: auto; }
.pi-hero__photo figcaption { padding: 18px 24px; font-size: 12px; letter-spacing: .04em; }
.pi-index { position: static; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-bottom: 1px solid var(--pi-line); }
.pi-index a { display: flex; justify-content: space-between; gap: 20px; padding: 22px 30px; border-right: 1px solid var(--pi-line); text-decoration: none; font-size: 14px; }
.pi-index a:last-child { border-right: 0; }
.pi-index a span { color: var(--pi-blue); font-size: 12px; }
.pi-index a:is(:hover, :focus-visible) { background: #e5e9ef; }
.pi-case section[id] { scroll-margin-top: calc(var(--header-h) + 24px); }
.pi-section { padding-block: clamp(68px, 7.5vw, 120px); }
.pi-intro { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(36px, 6vw, 96px); }
.pi-intro > *, .pi-hero__heading > *, .pi-detail-row > * { min-width: 0; }
.pi-section h2 { margin: 22px 0 0; font: 400 clamp(54px, 6vw, 100px)/1.04 var(--display); letter-spacing: -.03em; }
.pi-copy { padding-top: 39px; }
.pi-copy p { margin: 0; max-width: 630px; font-size: clamp(18px, 1.4vw, 23px); line-height: 1.55; }
.pi-copy p + p { margin-top: 1em; }
.pi-interior { background: var(--pi-blue); color: #fff; }
.pi-interior .pi-copy, .pi-interior figcaption { color: #e2eaf6; }
.pi-feature { margin-top: clamp(44px, 5vw, 80px); }
.pi-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 42px; }
.pi-pair figcaption strong { display: block; margin: 7px 0 10px; font: 400 clamp(32px, 3vw, 48px)/1.1 var(--display); color: #fff; }
.pi-pair figcaption span { display: block; font-size: 17px; }
.pi-detail-row { display: grid; grid-template-columns: 1.4fr 1fr; align-items: center; gap: clamp(32px, 5vw, 80px); margin-top: 72px; }
.pi-detail-row h3 { margin: 22px 0; font: 400 clamp(42px, 4vw, 66px)/1.06 var(--display); letter-spacing: -.025em; }
.pi-detail-row__copy p:not(.pi-kicker) { margin: 0; font-size: 18px; line-height: 1.55; }
.pi-detail-close { width: min(860px, calc(70% - 48px)); margin-top: 54px; margin-right: max(48px, calc((100% - 1520px) / 2)); }
.pi-drawings { background: #fff; }
.pi-drawing-viewer { margin-top: 60px; border: 1px solid var(--pi-line); }
.pi-drawing-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--pi-line); }
.pi-drawing-tabs button { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px; border: 0; border-right: 1px solid var(--pi-line); background: #f4f3ef; color: var(--pi-ink); text-align: left; cursor: pointer; font-size: 16px; }
.pi-drawing-tabs button:last-child { border-right: 0; }
.pi-drawing-tabs button span { font-size: 12px; }
.pi-drawing-tabs button[aria-selected="true"] { background: var(--pi-blue); color: #fff; }
.pi-drawing-tabs button:hover:not([aria-selected="true"]) { background: #e5e9ef; }
.pi-drawing figcaption { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 18px 24px; border-top: 1px solid var(--pi-line); }
.pi-drawing figcaption a { white-space: nowrap; text-underline-offset: 4px; }
.pi-drawing + .pi-drawing { border-top: 1px solid var(--pi-line); }
.pi-case [hidden] { display: none !important; }
.pi-network { background: #e7e9e7; }
.pi-related { display: grid; grid-template-columns: 1fr 2fr auto; align-items: center; gap: 30px; margin-top: 64px; padding-block: 30px; border-block: 1px solid var(--pi-line); text-decoration: none; }
.pi-related > span { font-size: 14px; }
.pi-related strong { font: 400 clamp(32px, 3.2vw, 52px)/1.1 var(--display); }
.pi-related i { font-size: 38px; font-style: normal; }
.pi-related:hover { color: var(--pi-blue); }
.pi-end { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; padding-top: 30px; font-size: 16px; }
.pi-end a { text-underline-offset: 5px; }
.pi-case > .site-footer { color: #fff; margin-top: 0; padding-block: 40px; }
.pi-case main a:focus-visible, .pi-case main button:focus-visible { outline: 2px solid currentColor; outline-offset: 4px; }
@media (max-width: 1050px) { .pi-shell { width: calc(100% - 48px); } .pi-hero__heading { gap: 32px; } .pi-detail-close { margin-right: 24px; } }
@media (max-width: 760px) {
  .pi-hero__heading, .pi-intro, .pi-detail-row { grid-template-columns: 1fr; gap: 30px; }
  .pi-hero h1 { font-size: clamp(66px, 13vw, 100px); }
  .pi-hero__lead p { font-size: 23px; margin-bottom: 15px; }
  .pi-hero__lead br { display: none; }
  .pi-hero__lead { max-width: 500px; }
  .pi-section { padding-block: 64px; }
  .pi-copy { padding-top: 0; }
  .pi-index { grid-template-columns: 1fr 1fr; }
  .pi-index a { padding: 18px 24px; }
  .pi-index a:nth-child(2) { border-right: 0; }
  .pi-index a:nth-child(-n+2) { border-bottom: 1px solid var(--pi-line); }
  .pi-pair { grid-template-columns: 1fr; gap: 36px; margin-top: 36px; }
  .pi-detail-row { margin-top: 48px; }
  .pi-detail-close { width: calc(100% - 48px); margin-inline: auto; margin-top: 36px; }
  .pi-drawing-tabs button { align-items: start; flex-direction: column; gap: 10px; padding: 18px; }
  .pi-drawing figcaption { align-items: start; flex-direction: column; gap: 12px; padding: 16px; }
  .pi-related { grid-template-columns: 1fr auto; gap: 18px; margin-top: 46px; }
  .pi-related > span { grid-column: 1 / -1; }
}
@media (max-width: 450px) {
  .pi-shell, .pi-wide, .pi-detail-close { width: calc(100% - 32px); }
  .pi-hero__heading { padding-block: 38px; }
  .pi-hero h1 { font-size: 66px; }
  .pi-hero__photo figcaption { padding: 14px 16px; }
  .pi-section h2 { font-size: 50px; }
  .pi-index a { padding-inline: 16px; }
}
@media (prefers-reduced-motion: reduce) { .pi-case * { scroll-behavior: auto !important; animation: none !important; transition: none !important; } }
@media print { .site-header, .mobile-menu, .pi-index, .pi-drawing-tabs, .pi-related, .pi-end, .site-footer { display: none !important; } .pi-case { padding-top: 0; } .pi-case .pi-drawing[hidden] { display: block !important; } }