:root {
  --bg: #f1f0ec;
  --fg: #151515;
  --mut: #63625c;
  --line: #d6d4cc;
  --acc: #d92e1b;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --s1: 8px; --s2: 24px; --s3: 48px; --s4: 96px;
  --w: 1180px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
@media (hover: hover) { a:hover { text-decoration-color: var(--acc); } }
a:focus-visible, button:focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; }
img, video { display: block; width: 100%; height: auto; }
::selection { background: var(--acc); color: #fff; }
.page { max-width: var(--w); margin: 0 auto; padding: 0 max(var(--s2), env(safe-area-inset-right)) 0 max(var(--s2), env(safe-area-inset-left)); }
.mut { color: var(--mut); }
.num { white-space: nowrap; }
.spec .num { font-size: 1em; }
.num, .mono { font-family: var(--mono); font-size: .9em; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
p { margin: 0 0 1em; }
dl { margin: 0; }

/* header: contact always visible */
header.top { display: grid; grid-template-columns: auto 1fr auto; gap: var(--s2); align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
header.top a { text-decoration: none; }
.brand { white-space: nowrap; font-weight: 500; display: inline-flex; align-items: center; gap: 10px; }
.brand::before { content: ""; width: 9px; height: 9px; background: var(--acc); }
header.top nav { display: flex; gap: var(--s2); }
header.top nav a { color: var(--mut); padding: 6px 0; }
@media (hover: hover) { header.top nav a:hover, header.top nav a[aria-current] { color: var(--fg); } }
header.top nav a[aria-current] { box-shadow: 0 2px 0 var(--acc); }
.contact { display: flex; gap: 8px; }
.contact a { padding: 6px 12px; border: 1px solid var(--fg); border-radius: 2px; transition: background .15s, color .15s; }
@media (hover: hover) { .contact a:hover { background: var(--fg); color: var(--bg); } }
.contact a:first-child { background: var(--fg); color: var(--bg); }
@media (hover: hover) { .contact a:first-child:hover { background: var(--acc); border-color: var(--acc); } }

/* type */
h1 { font-weight: 500; letter-spacing: -.02em; line-height: 1.12; margin: 0; text-wrap: balance; hyphens: none; font-size: clamp(2rem, 4.2vw, 3rem); }
h2 { font-weight: 500; letter-spacing: -.01em; font-size: 1.35rem; margin: 0 0 var(--s2); line-height: 1.2; }
.sec { padding: var(--s3) 0 0; }
.sec > .head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s2); border-top: 1px solid var(--fg); padding-top: 12px; margin-bottom: var(--s2); }
.sec > .head h2 { margin: 0; }
.sec > .head .lbl { font-family: var(--mono); font-size: .8rem; color: var(--mut); }
.sec > .head a { font-size: .9rem; }
.lead { font-size: 1.2rem; line-height: 1.45; max-width: 44rem; color: var(--fg); }

/* home hero */
.hero { padding: var(--s3) 0 var(--s2); display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--s3); align-items: end; }
.hero .lead { margin: var(--s2) 0 0; color: var(--mut); }
.facts { border-top: 1px solid var(--fg); font-size: .9rem; }
.facts div { display: grid; grid-template-columns: 7.5rem 1fr; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--mut); font-family: var(--mono); font-size: .8rem; padding-top: 2px; }
.facts dd { margin: 0; }

/* project tiles */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.card { grid-column: span 4; display: flex; flex-direction: column; text-decoration: none; background: var(--bg); border: 1px solid var(--line); transition: border-color .15s, transform .2s; min-width: 0; }
@media (hover: hover) { .card:hover { border-color: var(--fg); transform: translateY(-2px); } }
.card.w6 { grid-column: span 6; }
.card.w8 { grid-column: span 8; }
.card.w3 { grid-column: span 3; }
.card .im { aspect-ratio: 16 / 10; background: #dedcd4; overflow: hidden; position: relative; }
.card .im img { height: 100%; object-fit: cover; transition: transform .5s; }
@media (hover: hover) { .card:hover .im img { transform: scale(1.03); } }
.card .im.txt { display: flex; align-items: flex-end; padding: 14px; background: #e8e6df; font-family: var(--mono); font-size: .8rem; color: var(--mut); }
.card .im.txt b { font-weight: 400; font-size: 2.4rem; letter-spacing: -.04em; color: var(--fg); line-height: 1; }
.card .tx { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.card .t { font-weight: 500; }
.card .d { color: var(--mut); font-size: .92rem; line-height: 1.4; }
.card .m { margin-top: auto; padding-top: 10px; font-family: var(--mono); font-size: .8rem; color: var(--mut); display: flex; gap: 4px 12px; flex-wrap: wrap; max-height: 3.4em; overflow: hidden; }
.card.plain .tx { padding: 16px; }
.card.plain .t { font-size: 1.05rem; }
.card .m i { font-style: normal; }
.card .m .st::before { content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 6px; background: var(--mut); border-radius: 50%; }
.card .m .st.live::before { background: var(--acc); }
.card.ext .t::after { content: " \2197"; color: var(--mut); font-weight: 400; }
.group { padding-top: var(--s3); }
.group > h2 { display: flex; align-items: baseline; gap: 14px; border-top: 1px solid var(--fg); padding-top: 12px; margin-bottom: var(--s2); }
.group > h2 .lbl { font-family: var(--mono); font-size: .8rem; color: var(--mut); font-weight: 400; }
.group > p { max-width: 40rem; color: var(--mut); margin: -12px 0 var(--s2); }

/* photo strip on home */
.strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.strip a { display: block; overflow: hidden; background: #dedcd4; aspect-ratio: 3/4; }
.strip img { height: 100%; object-fit: cover; transition: transform .5s; }
@media (hover: hover) { .strip a:hover img { transform: scale(1.05); } }

/* footer */
.foot { margin-top: var(--s4); border-top: 1px solid var(--fg); padding: var(--s2) 0 var(--s3); display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--s3); font-size: .92rem; }
.foot .big { text-wrap: balance; font-size: 1.6rem; letter-spacing: -.02em; line-height: 1.2; margin: 0 0 12px; }
.foot .links a { display: block; padding: 5px 0; }
.foot .small { color: var(--mut); font-size: .8rem; font-family: var(--mono); margin-top: var(--s2); }

/* project page */
.project h1 { padding: var(--s3) 0 12px; }
.project .sub { text-wrap: balance; font-size: 1.2rem; color: var(--mut); margin: 0 0 var(--s3); max-width: 46rem; line-height: 1.4; }
.project figure { margin: 0 0 var(--s3); max-width: 46rem; }
.project figcaption { font-size: .88rem; color: var(--mut); margin-top: 10px; max-width: 46rem; }
.spec { max-width: 46rem; margin: 0 0 var(--s3); border-top: 1px solid var(--fg); font-size: .92rem; }
.spec div { display: grid; grid-template-columns: 12rem 1fr; gap: var(--s2); padding: 10px 0; border-bottom: 1px solid var(--line); }
.spec dt { color: var(--mut); }
.spec dd { margin: 0; }
.cols { display: grid; grid-template-columns: 1.6fr 1fr; gap: var(--s2); align-items: end; margin-bottom: var(--s3); }
.cols figure, .cols .text { margin: 0; }
.back { margin: var(--s3) 0 0; font-size: .9rem; }
video { max-width: 760px; background: #dedcd4; }
.data { width: 100%; max-width: 46rem; border-collapse: collapse; margin: 0 0 var(--s2); font-size: .95rem; }
.data caption { text-align: left; color: var(--mut); font-size: .88rem; padding-bottom: 10px; }
.data th, .data td { text-align: left; padding: 10px 0; border-top: 1px solid var(--line); font-weight: 400; }
.data thead th { color: var(--mut); font-size: .88rem; }
.data td { font-variant-numeric: tabular-nums; vertical-align: top; }
.data td.mono { font-family: var(--mono); font-size: .92em; white-space: nowrap; }
.data th:not(:first-child), .data td:not(:first-child) { padding-left: 16px; }
.data tbody tr:last-child > * { border-bottom: 1px solid var(--line); }
.data + .text { margin-top: var(--s2); }

/* about + timeline */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s3); }
.about .text { margin: 0; max-width: none; }
.skills { font-size: .92rem; border-top: 1px solid var(--fg); }
.skills div { display: grid; grid-template-columns: 9rem 1fr; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.skills dt { color: var(--mut); font-family: var(--mono); font-size: .78rem; padding-top: 2px; }
.skills dd { margin: 0; }
.chart { overflow-x: auto; border-top: 1px solid var(--fg); }
.chart svg { display: block; min-width: 860px; width: 100%; height: auto; font-family: var(--sans); }
.chart .ax { stroke: var(--line); stroke-width: 1; }
.chart .yr { font: 11px var(--mono); fill: var(--mut); }
.chart .tr { font: 11px var(--mono); fill: var(--mut); }
.chart .bar { fill: var(--fg); }
.chart .bar.hw { fill: var(--acc); }
.chart .bar.ed { fill: none; stroke: var(--fg); stroke-width: 1.5; }
.chart .bar.ph { fill: #8c8a82; }
.chart .lb { font: 12px var(--sans); fill: var(--fg); }
.chart .lb.in { fill: var(--bg); }
.tl { border-top: 1px solid var(--fg); margin-top: var(--s2); }
.tl .row { display: grid; grid-template-columns: 6.5rem 1.4rem 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.tl .when { font-family: var(--mono); font-size: .82rem; color: var(--mut); padding-top: 3px; }
.tl .mk { width: 9px; height: 9px; background: var(--fg); margin-top: 8px; }
.tl .mk.hw { background: var(--acc); }
.tl .mk.ed { background: none; border: 1.5px solid var(--fg); }
.tl .mk.ph { background: #8c8a82; }
.tl h3 { font-size: 1rem; font-weight: 500; margin: 0 0 2px; }
.tl p { margin: 0; color: var(--mut); font-size: .93rem; max-width: 40rem; }
.legend { display: flex; gap: var(--s2); font-family: var(--mono); font-size: .74rem; color: var(--mut); margin: 14px 0 0; flex-wrap: wrap; }
.legend i { display: inline-block; width: 9px; height: 9px; margin-right: 7px; background: var(--fg); }
.legend i.hw { background: var(--acc); }
.legend i.ed { background: none; border: 1.5px solid var(--fg); }
.legend i.ph { background: #8c8a82; }

/* photography */
.pg-head { padding: var(--s3) 0 var(--s2); display: flex; justify-content: space-between; align-items: flex-end; gap: var(--s2); flex-wrap: wrap; }
.series-nav { display: flex; gap: 6px 18px; flex-wrap: wrap; font-size: .9rem; }
.series-nav a { color: var(--mut); text-decoration: none; padding: 4px 0; }
@media (hover: hover) { .series-nav a:hover { color: var(--fg); box-shadow: 0 2px 0 var(--acc); } }
.series { padding-top: var(--s3); }
.series > h2 { display: flex; align-items: baseline; gap: 14px; border-top: 1px solid var(--fg); padding-top: 12px; }
.series > h2 .lbl { font-family: var(--mono); font-size: .78rem; color: var(--mut); font-weight: 400; }
.rows { display: flex; flex-wrap: wrap; gap: 8px; }
.ph { position: relative; display: block; padding: 0; border: 0; background: #dedcd4; cursor: zoom-in; overflow: hidden; height: 300px; flex-grow: var(--g); flex-basis: calc(var(--a) * 300px); max-width: calc(var(--a) * 300px * 1.5); }
.ph img { width: 100%; height: 100%; object-fit: cover; transition: opacity .6s, transform .6s; }
.js .ph img:not(.in) { opacity: 0; }
@media (hover: hover) { .ph:hover img { transform: scale(1.04); } }
.ph .ti { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 12px 10px; color: #fff; font-size: .82rem; text-align: left; background: linear-gradient(transparent, rgba(0,0,0,.65)); transform: translateY(100%); transition: transform .25s; }
@media (hover: hover) { .ph:hover .ti, .ph:focus-visible .ti { transform: none; } }
#lb { position: fixed; inset: 0; background: #0d0d0d; display: flex; align-items: center; justify-content: center; z-index: 10; }
#lb[hidden] { display: none; }
#lb img { width: auto; max-width: 100%; max-height: 100%; object-fit: contain; }
#lb button { position: absolute; background: rgba(0,0,0,.55); border: 1px solid rgba(255,255,255,.6); color: #eee; font: inherit; padding: 8px 14px; cursor: pointer; }
@media (hover: hover) { #lb button:hover { border-color: #fff; } }
#lb button:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
#x { top: 16px; right: 16px; } #pv { left: 16px; top: 50%; } #nx { right: 16px; top: 50%; }
#cap { position: absolute; left: 16px; bottom: 16px; color: #ddd; font-size: .9rem; }
#ct { position: absolute; right: 16px; bottom: 16px; color: var(--acc); font: .85rem var(--mono); }

@media (max-width: 860px) {
  header.top { grid-template-columns: 1fr auto; }
  header.top nav { grid-column: 1 / -1; grid-row: 2; }
  .hero, .foot, .about { grid-template-columns: 1fr; gap: var(--s2); }
  .card, .card.w6, .card.w8 { grid-column: span 6; }
  .strip { grid-template-columns: repeat(3, 1fr); }
  .strip a:nth-child(n+4) { display: none; }
}
@media (max-width: 560px) {
  .card, .card.w6, .card.w8, .card.w3 { grid-column: span 12; }
  .spec div, .skills div { grid-template-columns: 1fr; gap: 2px; }
  .cols { grid-template-columns: 1fr; }
  .tl .row { grid-template-columns: 5rem 1rem 1fr; gap: 10px; }
  .ph { height: 200px; flex-basis: calc(var(--a) * 200px); }
  .contact a { padding: 5px 8px; font-size: .82rem; }
  .contact { gap: 5px; }
  header.top { gap: 10px; }
}
@media print { header.top nav, .contact, video { display: none; } body { background: #fff; } }

/* deep-dive pages */
.project h2 { margin: var(--s3) 0 12px; font-size: 1.3rem; border-top: 1px solid var(--line); padding-top: 14px; max-width: 46rem; }
.toc { display: flex; gap: 6px 20px; flex-wrap: wrap; font-family: var(--mono); font-size: .84rem; margin: calc(var(--s2) * -1) 0 var(--s3); }
.toc a { color: var(--fg); text-decoration: none; padding: 4px 0; }
@media (hover: hover) { .toc a:hover { color: var(--fg); text-decoration: underline; text-decoration-color: var(--acc); } }
.text { max-width: 46rem; margin: 0 0 1em; line-height: 1.6; }
.text:not(:has(+ .text)) { margin-bottom: var(--s3); }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 0 0 var(--s3); max-width: 56rem; }
.pair figure { margin: 0; max-width: none; }
.project figure.wide { max-width: 56rem; }
.dg svg { width: 100%; height: auto; display: block; }
.dg .box { fill: none; stroke: var(--fg); stroke-width: 1.2; }
.dg .solid { fill: var(--fg); }
.dg .acc { fill: #f4cfc7; stroke: var(--acc); stroke-width: 1.5; }
.dg .ln { stroke: var(--mut); stroke-width: 1.2; fill: none; }
.dg text { font: 12px var(--sans); fill: var(--fg); }
.dg text.inv { fill: var(--bg); }
.dg text.m { font: 11px var(--mono); fill: var(--mut); }
.dg text.inv.m { fill: var(--bg); }
pre.code { font: .8rem/1.5 var(--mono); background: #e7e5de; padding: 14px 16px; overflow-x: auto; max-width: 46rem; margin: 0 0 var(--s3); }
.callout { border-left: 3px solid var(--acc); padding: 2px 0 2px 16px; max-width: 46rem; margin: 0 0 var(--s3); color: var(--mut); }
@media (max-width: 560px) { .pair { grid-template-columns: 1fr; } }

.card .im.fit img { object-fit: contain; background: #fff; }
.grid.plains .card { grid-column: span 4; }
@media (min-width: 561px) and (max-width: 860px) {
  .grid.plains .card { grid-column: span 6; }
  .grid > .card:last-child:nth-child(odd) .im { aspect-ratio: 21 / 9; }
  .grid > .card:last-child:nth-child(odd) { grid-column: span 12; }
}
@media (max-width: 908px) { .chart svg { min-width: 0; } }
@media (max-width: 700px) { .chart, .legend.ck, .cn { display: none; } }
@media (max-width: 560px) { .grid.plains .card { grid-column: span 12; } }

/* chart images: let their white background take the page colour */
.project figure img[src$=".png"], .pair img[src$=".png"] { mix-blend-mode: multiply; }
.card .im.fit { background: var(--bg); }
.card .im.fit img { background: transparent; mix-blend-mode: multiply; }
pre.code { white-space: pre-wrap; overflow-wrap: anywhere; }
.chart .lb:not(.in) { paint-order: stroke; stroke: var(--bg); stroke-width: 3px; }
@media (max-width: 908px) { .chart .lb { font-size: 13px; } .chart .tr, .chart .yr { font-size: 12.5px; } }
@media (max-width: 700px) { .tlsec { display: none; } }
/* phone: diagrams and charts stay legible and scroll sideways */
@media (max-width: 560px) {
  .data { display: block; overflow-x: auto; }
  .data th, .data td { min-width: 5.5rem; }
  .data td.mono { white-space: normal; }
}
/* photography: masonry columns, no ragged last row */
.rows { display: block; columns: 4 230px; column-gap: 8px; }
.rows::after { display: none; }
.ph { height: auto; flex: none; max-width: none; width: 100%; margin: 0 0 8px; break-inside: avoid; }
.ph img { height: auto; }


/* reading-level switch (Braun-style slide switch with a red LED) */
.ver { display: inline-flex; align-items: center; gap: 12px; margin: 0 0 var(--s3); font-size: .85rem; }
.ver .led { width: 8px; height: 8px; border-radius: 50%; background: var(--acc); box-shadow: 0 0 0 3px rgba(217,46,27,.18); }
.ver .sw { display: inline-flex; border: 1px solid var(--fg); border-radius: 2px; overflow: hidden; }
.ver button { background: none; border: 0; color: var(--fg); font: inherit; padding: 8px 16px; cursor: pointer; transition: background .15s, color .15s; }
.ver button + button { border-left: 1px solid var(--fg); }
.ver button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
@media (hover: hover) { .ver button:not([aria-pressed="true"]):hover { background: #e4e2db; } }
.js [data-ver] { display: none; }
html[data-ver="tech"] [data-ver="tech"], html[data-ver="plain"] [data-ver="plain"] { display: block; }
.toc[data-ver] { display: none; }
html[data-ver="tech"] .toc[data-ver="tech"] { display: flex; }
.ver-note { font: .78rem var(--mono); color: var(--mut); margin: calc(var(--s2) * -1 + 8px) 0 var(--s3); }

/* optional explanations */
details.why { max-width: 46rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 0 var(--s2); }
details.why + details.why { margin-top: calc(var(--s2) * -1); border-top: 0; }
details.why summary { cursor: pointer; padding: 12px 0; font-size: .95rem; list-style: none; display: flex; gap: 12px; align-items: baseline; }
details.why summary::-webkit-details-marker { display: none; }
details.why summary::before { content: "+"; font: 1rem var(--mono); color: var(--acc); width: 1ch; }
details.why[open] summary::before { content: "−"; }
details.why > :not(summary) { padding-bottom: 12px; color: var(--mut); font-size: .95rem; max-width: 40rem; }

/* before / after slider */
.ba { position: relative; max-width: 46rem; margin: 0 0 var(--s3); overflow: hidden; background: #dedcd4; user-select: none; }
.ba img { width: 100%; height: auto; display: block; }
.ba .top { position: absolute; inset: 0; clip-path: inset(0 50% 0 0); }
.ba .bar { position: absolute; top: 0; bottom: 0; left: 50%; width: 2px; background: var(--acc); pointer-events: none; }
.ba .bar::after { content: ""; position: absolute; top: 50%; left: -9px; width: 20px; height: 20px; margin-top: -10px; background: var(--acc); border: 2px solid var(--bg); border-radius: 50%; }
.ba input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.ba .lab { position: absolute; top: 10px; font: .72rem var(--mono); background: rgba(0,0,0,.6); color: #fff; padding: 3px 8px; }
.ba .lab.l { left: 10px; } .ba .lab.r { right: 10px; }

/* generic slider widget */
.widget { max-width: 46rem; border: 1px solid var(--line); padding: 16px 18px; margin: 0 0 var(--s3); background: #ece9e2; }
.widget h3 { font-size: .95rem; font-weight: 500; margin: 0 0 12px; }
.widget label { font: .8rem var(--mono); color: var(--mut); display: block; margin-bottom: 6px; }
.widget input[type=range] { width: 100%; accent-color: var(--acc); }
.widget .out { font: 1.6rem var(--mono); letter-spacing: -.02em; margin: 10px 0 2px; }
.widget .note { font-size: .82rem; color: var(--mut); margin: 6px 0 0; }
.widget button { font: inherit; border: 1px solid var(--fg); background: var(--fg); color: var(--bg); padding: 7px 14px; cursor: pointer; border-radius: 2px; }
@media (hover: hover) { .widget button:hover { background: var(--acc); border-color: var(--acc); } }
.widget svg { max-width: 100%; height: auto; }

/* rotary dial: project filter */
.dialbox { display: flex; align-items: center; gap: var(--s2); margin: var(--s2) 0 0; flex-wrap: wrap; }
.dial { position: relative; width: 120px; height: 120px; flex: none; }
.dial svg { width: 100%; height: 100%; overflow: visible; }
.dial .knob { fill: #151515; }
.dial .tick { stroke: var(--mut); stroke-width: 1.5; }
.dial .tick.on { stroke: var(--acc); stroke-width: 2.5; }
.dial .ptr { stroke: #f1f0ec; stroke-width: 3; stroke-linecap: round; }
.dial .rot { transition: transform .35s cubic-bezier(.3,1.4,.5,1); transform-origin: 60px 60px; }
.dial button { position: absolute; inset: 22px; border-radius: 50%; border: 0; background: transparent; cursor: pointer; }
.dial button:focus-visible { outline: 2px solid var(--acc); outline-offset: 3px; }
.dstops { display: flex; flex-wrap: wrap; gap: 4px 18px; font: .85rem var(--mono); }
.dstops button { background: none; border: 0; padding: 6px 0; cursor: pointer; color: var(--mut); font: inherit; }
.dstops button[aria-pressed="true"] { color: var(--fg); box-shadow: 0 2px 0 var(--acc); }
.dlabel { font: .74rem var(--mono); color: var(--mut); }
.group[hidden] { display: none; }
@media (prefers-reduced-motion: reduce) { .dial .rot { transition: none; } }

/* step-through widget and clickable diagram boxes */
.widget .steps { display: flex; gap: 6px; margin-bottom: 12px; }
.widget button[aria-pressed="true"] { background: var(--acc); border-color: var(--acc); }
.dg .hit { fill: transparent; stroke: none; stroke-width: 3; cursor: pointer; }
.dg .hit.on { stroke: var(--acc); }
.dg .hit:focus-visible { outline: 2px solid var(--fg); }
.widget input[type=text] { width: 100%; box-sizing: border-box; font: .9rem var(--mono); padding: 6px 8px; margin-bottom: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); }

/* phone: diagrams and charts fit the screen; tap to enlarge */
.dg .box, .dg .solid, .dg .acc { pointer-events: all; }
@media (hover: hover) { .dial button:hover { background: transparent !important; border: 0 !important; } }
@media (max-width: 560px) {
  .dg svg { min-width: 0; }
  .data { font-size: .8rem; }
  .data th, .data td { min-width: 3.4rem; padding-left: 10px; }
}
/* photography: small series fill their rows */
@media (min-width: 861px) {
  #portraits .rows, #details .rows, #shore-and-light .rows { display: flex; flex-wrap: wrap; gap: 8px; columns: auto; }
  #portraits .ph, #details .ph, #shore-and-light .ph { height: 300px; width: auto; margin: 0; flex: var(--g) 1 calc(var(--a) * 300px); }
  #portraits .ph img, #details .ph img, #shore-and-light .ph img { height: 100%; }
}

html:not(.js) .ver { display: none; }

@media (max-width: 560px) { #azw.js table.data { display: none; } }
.widget input[type=radio] { accent-color: var(--acc); margin: 0 6px 0 0; vertical-align: -1px; }
.widget label.rad { display: inline-block; margin: 0 18px 12px 0; }
.dg g[tabindex] { cursor: pointer; }
@media (max-width: 560px) {
  .widget .out { font-size: 1.15rem; }
}

/* zoom viewer */
.project figure img.zoomable { cursor: zoom-in; }
.ov { position: fixed; inset: 0; z-index: 40; background: var(--bg); }
.ovstage { position: absolute; inset: 0; overflow: auto; -webkit-overflow-scrolling: touch; padding: 64px 16px 72px; cursor: zoom-in; display: flex; overscroll-behavior: contain; touch-action: pan-x pan-y; }
.ovstage.grab { cursor: grabbing; }
.ovin { width: max-content; margin: auto; }
.ovin img, .ovin svg { display: block; height: auto; max-width: none; background: transparent; }
@media (prefers-reduced-motion: reduce) { .ovstage { scroll-behavior: auto; } }

.ovx { position: fixed; top: max(14px, env(safe-area-inset-top)); right: max(14px, env(safe-area-inset-right)); z-index: 41; font: .9rem var(--sans); border: 1px solid var(--fg); background: var(--fg); color: var(--bg); padding: 12px 20px; min-height: 44px; border-radius: 2px; cursor: pointer; }
@media (hover: hover) { .ovx:hover { background: var(--acc); border-color: var(--acc); } }
.ovx:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

/* phone and touch polish */
.zf { position: relative; }
.zoomhint { display: none; }
@media (hover: none) and (pointer: coarse) {
  .zoomhint { display: flex; align-items: center; justify-content: center; position: absolute; top: 8px; right: 8px; width: 40px; height: 40px; border: 0; border-radius: 2px; background: rgba(21,21,21,.6); color: #fff; cursor: pointer; padding: 0; }
  .zf.dg .zoomhint { top: 4px; right: 4px; background: rgba(21,21,21,.5); }
  a, button, summary { -webkit-tap-highlight-color: rgba(217,46,27,.15); }
}
@media (max-width: 560px) {
  header.top nav { gap: 14px; }
  header.top nav a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 2px; }
  .contact { gap: 8px; }
  .contact a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 12px; font-size: .88rem; }
  .brand { min-height: 40px; }
  .sec > .head a, .series-nav a, .dstops button, .toc a { display: inline-flex; align-items: center; min-height: 40px; }
  .foot .links a { display: flex; align-items: center; min-height: 44px; padding: 0; }
  .back a { display: inline-block; padding: 12px 0; }
  .tl h3 a { display: inline-block; padding: 4px 0; }
  .ver button { min-height: 44px; }
  details.why summary { min-height: 44px; align-items: center; }
  .widget button, .widget select { min-height: 44px; }
  .widget input, .widget select, .widget textarea { font-size: 16px; }
}
@media (max-width: 359px) {
  header.top { grid-template-columns: 1fr; gap: 4px; }
  header.top nav { grid-column: 1; grid-row: 2; }
  .contact { grid-row: 3; flex-wrap: wrap; padding-bottom: 8px; }
  h1 { font-size: 1.75rem; }
}
@media (max-height: 480px) and (orientation: landscape) {
  header.top { grid-template-columns: auto 1fr auto; padding: 8px 0; }
  header.top nav { grid-column: auto; grid-row: auto; }
}

/* touch-friendly step buttons for clickable diagrams (shown on phones/tablets only) */
.stepbtns { display: none; }
@media (max-width: 700px), (hover: none) and (pointer: coarse) {
  .stepbtns { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; max-width: 46rem; }
  .stepbtns button { font: .85rem var(--sans); border: 1px solid var(--fg); background: none; color: var(--fg); padding: 8px 12px; min-height: 44px; border-radius: 2px; cursor: pointer; }
  .stepbtns button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
}
.readout { max-width: 46rem; margin: 10px 0 0; font-size: .92rem; color: var(--fg); border-left: 3px solid var(--acc); padding: 2px 0 2px 12px; min-height: 2.8em; }

.tl .row { position: relative; }
.tl h3 a::after { content: ""; position: absolute; inset: 0; }
#lb button { min-height: 44px; min-width: 44px; }
#x { top: max(16px, env(safe-area-inset-top)); right: max(16px, env(safe-area-inset-right)); }
@media (max-width: 560px) {
  .dialbox { flex-wrap: nowrap; gap: 12px; }
  .dial { width: 84px; height: 84px; }
  .dial button { inset: 15px; }
  .dstops { gap: 0 10px; }
  .dstops button { padding: 8px 0; }
  .card .im { aspect-ratio: 16 / 9; }
  .card.plain .tx { padding: 14px; }
}

@media (max-width: 430px) {
  header.top { grid-template-columns: 1fr; gap: 6px 0; padding-bottom: 10px; }
  header.top .brand { grid-row: 1; }
  header.top .contact { grid-row: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
  header.top .contact a { justify-content: center; padding: 0 8px; min-height: 44px; }
  header.top nav { grid-row: 3; grid-column: 1; }
}

/* zoom icon sits in the caption row, never on the artwork */
@media (hover: none) and (pointer: coarse) {
  .zf figcaption { padding-right: 52px; min-height: 44px; }
  .zf .zoomhint, .zf.dg .zoomhint { top: auto; bottom: 0; right: 0; width: 44px; height: 44px; background: rgba(21,21,21,.7); }
}