/* Homepage — specimen sheet by day. */

body.home { background: var(--paper-100); }

#how, #plates, #diagrams, #local { scroll-margin-top: 96px; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink-900); color: var(--paper-50);
  padding: 10px 14px; border-radius: var(--r-control);
}
.skip:focus { left: 16px; top: 16px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 40; background: var(--paper-100); border-bottom: 1px solid var(--paper-300); }
.nav-inner { display: flex; align-items: center; height: 84px; gap: 40px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.monogram {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px;
  border: 1px solid var(--ink-900);
  font: 400 24px/1 var(--serif);
  color: var(--ink-900);
}
.brand-name { font: 600 17px/1 var(--sans); letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 28px; margin-left: 16px; }
.nav-links a { font-size: 14px; color: var(--slate-700); text-decoration: none; }
.nav-links a:hover { color: var(--ink-900); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 20px; }
.nav-local { display: inline-flex; align-items: center; gap: 7px; font: 400 10px/1 var(--mono); letter-spacing: 0.08em; color: var(--slate-700); }

/* Hero */
.hero { padding: clamp(40px, 6vw, 76px) 0 clamp(56px, 7vw, 96px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.hero-copy { padding-top: 12px; }
.hero h1 {
  margin: 22px 0 0;
  font: 400 clamp(52px, 7.1vw, 96px)/0.95 var(--serif);
  letter-spacing: -0.035em;
  color: var(--ink-900);
}
.hero-sub { margin-top: 30px; max-width: 31rem; font-size: 18px; line-height: 1.62; color: var(--slate-700); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-proof { margin-top: 22px; font-size: 10px; letter-spacing: 0.08em; color: var(--slate-700); }

.spec-strip {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: clamp(48px, 7vw, 86px) 0 0; padding-top: 14px;
  border-top: 1px solid var(--paper-300);
}
.spec-strip dt { font: 400 9px/1 var(--mono); letter-spacing: 0.1em; color: var(--slate-700); }
.spec-strip dd { margin: 8px 0 0; font: 400 10px/1.4 var(--mono); color: var(--ink-900); }

/* Specimen */
.specimen { margin: 0 0 0 auto; position: relative; max-width: 500px; }
.specimen-head { display: flex; justify-content: space-between; gap: 16px; padding: 0 2px 10px; font-size: 9px; letter-spacing: 0.08em; color: var(--slate-700); }
.sheet {
  position: relative;
  background: var(--paper-50);
  border: 1px solid var(--paper-300);
  padding: clamp(14px, 2.2vw, 24px);
  box-shadow: 0 30px 70px rgba(14, 23, 38, 0.14);
  transition: clip-path 0.42s var(--ease);
}
.sheet.is-armed:not(.is-revealed) { clip-path: inset(100% 0 0 0); }
.sheet.is-revealed { clip-path: inset(0 0 0 0); }
.specimen-svg svg { display: block; width: 100%; height: auto; }
.sheet-loading { position: absolute; inset: 0; display: grid; place-items: center; background: var(--paper-50); color: var(--slate-700); }
.sheet-loading[hidden] { display: none; }
.sheet-loading .mono { font-size: 10px; letter-spacing: 0.1em; }

.reg { position: absolute; width: 16px; height: 1px; background: var(--brass-500); z-index: 2; }
.reg::after { content: ""; position: absolute; width: 1px; height: 16px; background: var(--brass-500); }
.reg.tl { top: 8px; left: 8px; }
.reg.tl::after { top: 0; left: 0; }
.reg.tr { top: 8px; right: 8px; }
.reg.tr::after { top: 0; right: 0; }
.reg.bl { bottom: 8px; left: 8px; }
.reg.bl::after { bottom: 0; left: 0; }
.reg.br { bottom: 8px; right: 8px; }
.reg.br::after { bottom: 0; right: 0; }
.reg.light { background: var(--brass-300); }
.reg.light::after { background: var(--brass-300); }

.specimen-foot { display: flex; justify-content: space-between; gap: 12px; padding: 10px 2px 0; font-size: 9px; letter-spacing: 0.06em; color: var(--slate-700); }
.specimen-foot .mono { white-space: nowrap; }

/* Thesis */
.thesis { background: var(--ink-900); color: var(--paper-50); padding: clamp(64px, 8vw, 104px) 0; }
.thesis-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); gap: clamp(32px, 6vw, 80px); align-items: center; }
.rule-brass { display: block; width: 56px; height: 2px; background: var(--verd-400); margin-bottom: 34px; }
.thesis h2 { font: 400 clamp(36px, 4.4vw, 58px)/1.06 var(--serif); letter-spacing: -0.02em; max-width: 14ch; }
.thesis-body { margin-top: 34px; max-width: 34rem; font-size: 17px; line-height: 1.7; color: var(--slate-300); }
.thesis-body + .thesis-body { margin-top: 16px; }
.thesis-caption { margin-top: 54px; padding-top: 16px; border-top: 1px solid var(--ink-600); max-width: 34rem; font-size: 9px; letter-spacing: 0.08em; color: var(--brass-300); }
.thesis-photo { margin: 0; }
.thesis-photo img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 4; object-fit: cover; }

/* Pipeline */
.pipeline-pin { position: relative; height: 200vh; background: var(--paper-100); }
.pipeline-stage { position: sticky; top: 0; min-height: 100vh; display: flex; align-items: center; padding: 48px 0; }
.pipeline { width: min(1280px, 100%); }
.pipeline-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; }
.pipeline h2, .section-head h2, .local h2, .closing h2 { font: 400 clamp(34px, 4.2vw, 50px)/1.06 var(--serif); letter-spacing: -0.022em; margin-top: 12px; }
.pipeline-sub { max-width: 26rem; font-size: 15px; line-height: 1.6; color: var(--slate-700); }
.stages-wrap { position: relative; margin-top: clamp(40px, 6vw, 72px); }
.pipeline-line { position: absolute; left: 0; right: 0; top: 4px; height: 1px; background: var(--paper-300); }
.pipeline-line i { display: block; height: 100%; width: 100%; background: var(--verd-600); transform-origin: left; transform: scaleX(var(--p, 0)); }
.stages { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: clamp(16px, 2.4vw, 34px); margin: 0; padding: 0; list-style: none; }
.stage { position: relative; padding-top: 34px; }
.stage::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--paper-100); border: 1px solid var(--ink-900);
  transition: background 160ms var(--ease);
}
.stage.is-on::before { background: var(--verd-600); border-color: var(--verd-600); }
.stage-letter { font-size: 10px; letter-spacing: 0.1em; color: var(--brass-500); }
.stage h3 { margin: 8px 0 0; font: 500 17px/1.2 var(--sans); color: var(--ink-900); }
.stage p { margin: 8px 0 0; font-size: 13px; line-height: 1.55; color: var(--slate-700); max-width: 22ch; }
.stage-thumb { margin-top: 18px; border: 1px solid var(--paper-300); background: var(--paper-50); overflow: hidden; height: 92px; }
.stage-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.stage[data-stage="0"] .stage-thumb img { object-position: 30% 50%; }
.stage[data-stage="4"] .stage-thumb img { object-position: 12% 50%; }
.stage-thumb.out { background: var(--paper-50); }
.pipeline-note { margin-top: clamp(32px, 5vw, 56px); font-size: 10px; letter-spacing: 0.06em; color: var(--slate-700); }

/* Plates */
.plates { padding: clamp(72px, 9vw, 120px) 0; background: var(--paper-100); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; margin-bottom: clamp(32px, 4vw, 52px); }
.section-head > p { max-width: 24rem; font-size: 15px; line-height: 1.6; color: var(--slate-700); }
.plate-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 3fr) minmax(0, 2.2fr);
  gap: clamp(16px, 2.2vw, 30px);
  align-items: start;
}
.plate { margin: 0; }
.plate img { display: block; width: 100%; height: auto; border: 1px solid var(--paper-300); background: var(--paper-50); }
.plate figcaption { display: flex; flex-direction: column; gap: 4px; margin-top: 10px; }
.plate figcaption b { font-size: 10px; letter-spacing: 0.08em; font-weight: 400; }
.plate figcaption span { font-size: 9px; color: var(--slate-700); }
.plate-quote { margin: 0; padding-top: 14px; border-top: 1px solid var(--paper-300); align-self: start; }
.plate-quote .mono { font-size: 9px; letter-spacing: 0.1em; color: var(--slate-700); }
.plate-quote p { margin: 22px 0 0; font: 400 clamp(22px, 2.2vw, 31px)/1.18 var(--serif); letter-spacing: -0.01em; color: var(--ink-900); }
.plate-quote cite { display: block; margin-top: 26px; font-style: normal; font-size: 9px; color: var(--slate-700); }

/* Diagrams */
.diagrams { background: var(--ink-900); color: var(--paper-50); padding: clamp(72px, 9vw, 120px) 0; }
.diagrams-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 80px); align-items: center; }
.diagram-figure { position: relative; background: var(--paper-50); padding: 18px; }
.heart-detail { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: var(--paper-50); }
.heart-detail svg { display: block; width: 100%; height: 100%; }
.diagram-label { display: block; padding-top: 10px; font-size: 8px; letter-spacing: 0.1em; color: var(--slate-700); }
.diagram-copy .kicker { color: var(--brass-300); }
.diagrams .btn-quiet { border-color: var(--ink-500); color: var(--paper-50); }
.diagrams .btn-quiet:hover { background: var(--ink-800); }
.diagram-copy h2 { font: 400 clamp(34px, 4.2vw, 52px)/1.06 var(--serif); letter-spacing: -0.022em; margin-top: 12px; }
.diagram-copy > p { margin-top: 24px; max-width: 34rem; font-size: 16px; line-height: 1.7; color: var(--slate-300); }
.diagram-list { list-style: none; margin: 30px 0 34px; padding: 0; border-top: 1px solid var(--ink-600); }
.diagram-list li { display: flex; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--ink-600); font-size: 13px; color: var(--slate-300); }
.diagram-list .mono { color: var(--brass-300); font-size: 10px; padding-top: 2px; }
.diagram-copy .note { margin-top: 18px; font-size: 9px; letter-spacing: 0.04em; color: var(--slate-300); }

/* Local */
.local { padding: clamp(72px, 9vw, 120px) 0; }
.local-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(40px, 7vw, 100px); align-items: start; }
.local p { margin-top: 26px; max-width: 32rem; font-size: 16px; line-height: 1.7; color: var(--slate-700); }
.local-note { margin-top: 36px; font-size: 10px; line-height: 1.6; color: var(--slate-700); }
.spec-table { margin: 0; border-top: 1px solid var(--ink-900); }
.spec-table div { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--paper-300); }
.spec-table dt { font: 400 9px/1.4 var(--mono); letter-spacing: 0.1em; color: var(--slate-700); }
.spec-table dd { margin: 0; font-size: 15px; color: var(--ink-900); }

/* Closing + footer */
.closing { background: var(--ink-900); color: var(--paper-50); padding-top: clamp(72px, 9vw, 110px); }
.closing-inner { padding-bottom: clamp(56px, 7vw, 84px); }
.closing h2 { font-size: clamp(40px, 5.6vw, 68px); max-width: 15ch; }
.closing p { margin-top: 24px; max-width: 34rem; font-size: 17px; line-height: 1.6; color: var(--slate-300); }
.closing-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.closing-compat { margin-top: 34px; font-size: 9px; letter-spacing: 0.12em; color: var(--brass-300); }
.footer { border-top: 1px solid var(--ink-600); padding: 46px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-brand { display: grid; grid-template-columns: auto 1fr; gap: 10px 12px; align-items: center; align-content: start; }
.footer-brand .monogram { width: 28px; height: 28px; font-size: 19px; border-color: var(--brass-400); color: var(--paper-50); }
.footer-brand b { font: 600 15px/1 var(--sans); }
.footer-brand span:last-child { grid-column: 1 / -1; font-size: 12px; color: var(--slate-300); }
.footer-col { display: grid; gap: 10px; align-content: start; }
.footer-col b { font-size: 9px; letter-spacing: 0.1em; font-weight: 400; color: var(--slate-300); }
.footer-col a { font-size: 13px; text-decoration: none; color: var(--paper-50); }
.footer-col a:hover { color: var(--verd-300); }
.footer-legal { display: flex; justify-content: space-between; gap: 24px; margin-top: 44px; padding-top: 18px; border-top: 1px solid var(--ink-600); font-size: 9px; color: var(--slate-300); }

/* Motion */
@media (prefers-reduced-motion: reduce) {
  .sheet { clip-path: none; transition: none; }
  .pipeline-pin { height: auto; }
  .pipeline-stage { position: static; min-height: 0; }
  .pipeline-line i { transform: scaleX(1); }
  .stage::before { background: var(--verd-600); border-color: var(--verd-600); }
  .thesis h2 .word, .plate-quote { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* Thesis words */
.thesis h2 .word { display: inline-block; opacity: 0; transform: translateY(8px); transition: opacity 420ms var(--ease), transform 420ms var(--ease); }
.thesis h2.is-in .word { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .specimen { max-width: 640px; margin: 0 auto; }
  .thesis-grid, .diagrams-grid, .local-grid { grid-template-columns: 1fr; }
  .thesis-photo { max-width: 560px; }
  .plate-grid { grid-template-columns: 1fr 1fr; }
  .plate-quote { grid-column: 1 / -1; max-width: 520px; }
  .pipeline-head, .section-head { align-items: flex-start; flex-direction: column; gap: 18px; }
  .stages { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
  .pipeline-line { display: none; }
  .pipeline-pin { height: auto; }
  .pipeline-stage { position: static; min-height: 0; padding: 72px 0; }
  .stage::before { display: none; }
  .stage { padding-top: 0; }
}

@media (max-width: 720px) {
  .nav-inner { height: 68px; gap: 16px; }
  .nav-links, .nav-local { display: none; }
  .hero { padding-top: 32px; }
  .hero h1 { font-size: clamp(46px, 12vw, 64px); }
  .hero-sub { font-size: 16px; }
  .spec-strip { grid-template-columns: 1fr; gap: 14px; }
  .spec-strip div { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--paper-300); padding-bottom: 10px; }
  .spec-strip dd { margin: 0; }
  .specimen-head, .specimen-foot { flex-wrap: wrap; gap: 6px; }
  .stages { grid-template-columns: 1fr; }
  .plate-grid { grid-template-columns: 1fr; }
  .plate-lg { grid-column: auto; }
  .thesis-caption { margin-top: 34px; }
  .diagram-figure { padding: 12px; }
  .spec-table div { grid-template-columns: 120px minmax(0, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-legal { flex-direction: column; gap: 8px; }
}