*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-width: none; }
html::-webkit-scrollbar, *::-webkit-scrollbar { display: none; }
* { scrollbar-width: none; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

body {
  margin: 0;
  background: var(--bg) url("tex/page.jpg") repeat; background-size: 520px; background-blend-mode: multiply;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: var(--step-0);
  line-height: var(--leading-body);
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: var(--gutter); top: var(--space-3); background: var(--surface); padding: var(--space-2) var(--space-3); z-index: 10; }
.wrap { max-width: var(--page-max); margin: 0 auto; padding: 0 var(--gutter); }
.sans { font-family: var(--font-sans); }
.label { font-family: var(--font-sans); font-size: var(--step--1); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--text-muted); }

/* ---------- Top meta bar ---------- */
.meta-bar { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: var(--space-3); padding-block: var(--space-3); font-family: var(--font-sans); font-size: var(--step--1); }
.meta-bar .center { text-align: center; color: var(--text-muted); }
.meta-bar .right { display: flex; justify-content: flex-end; gap: var(--space-2); }
.meta-bar a.home { color: var(--text); text-decoration: none; }
.pill { font-family: var(--font-sans); font-size: var(--step--1); border: 1px solid var(--rule); background: transparent; color: var(--text); padding: 5px 12px; border-radius: 999px; cursor: pointer; text-decoration: none; line-height: 1.2; transition: border-color .2s var(--ease), background .2s var(--ease); }
.pill:hover { border-color: var(--text); color: var(--text); }
.pill.dark { background: var(--text); color: var(--bg); border-color: var(--text); }
.pill.dark:hover { background: var(--cornflower-deep); border-color: var(--cornflower-deep); color: #fff; }
@media (max-width: 640px) { .meta-bar { grid-template-columns: 1fr auto; } .meta-bar .center { display: none; } }

/* ---------- Landing ---------- */
.landing { position: relative; padding-top: var(--space-5); }
.display {
  position: relative; z-index: 2;
  text-align: center; font-weight: 400; margin: 0;
}
.display { margin-bottom: var(--space-6); }
.display .ln { display: block; }
.display .ln:first-child {
  text-transform: uppercase; font-size: clamp(2.2rem, 8.7vw, 7.3rem);
  line-height: .84; letter-spacing: -0.05em;
}
.display .sub {
  font-style: italic; color: var(--cornflower-deep);
  font-size: clamp(1.5rem, 5.2vw, 4.3rem); line-height: 1; letter-spacing: -0.03em;
  margin-top: .08em;
}
.intro {
  text-align: center; max-width: 34ch; margin: var(--space-5) auto var(--space-6);
  font-size: var(--step-1); line-height: 1.45; color: var(--text-muted);
}
.landing-foot { display: grid; grid-template-columns: 1fr 1fr 1fr; padding: var(--space-2) 0; border-bottom: 1px solid var(--text); font-family: var(--font-sans); font-size: var(--step--1); }
.landing-foot > :nth-child(2) { text-align: center; }
.landing-foot > :nth-child(3) { text-align: right; }
@media (max-width: 760px) {
  .landing-foot { grid-template-columns: 1fr; gap: 2px; }
  .landing-foot > :nth-child(n) { text-align: left; }
}

/* ---------- Index (books + contents) ---------- */
.contents { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); padding: var(--space-5) 0 0; align-items: end; }
.toc { list-style: none; margin: 0 0 var(--space-5); padding: 0; font-family: var(--font-sans); grid-column: 2; }
@media (max-width: 860px) { .toc { grid-column: 1; } }
.toc a { display: grid; grid-template-columns: 1fr auto; text-decoration: none; color: var(--text); font-size: var(--step-2); line-height: 1.12; text-transform: uppercase; letter-spacing: .01em; }
.toc a .n { color: #A9A398; font-variant-numeric: tabular-nums; transition: color .2s var(--ease); }
.toc a:hover { color: var(--cornflower-deep); }
.toc a:hover .n { color: var(--cornflower); }
.pile { display: flex; flex-direction: column; align-items: flex-start; gap: 0; }
.flatbook {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  text-decoration: none; padding: 0 var(--space-3); border-radius: 1px;
  font-family: var(--font-serif); transition: transform .25s var(--ease);
}
.flatbook { position: relative; background-image: linear-gradient(rgba(0,0,0,0) 60%, rgba(0,0,0,.10)), var(--cloth); background-blend-mode: normal; background-size: 100% 100%, 420px; box-shadow: 0 6px 10px -8px rgba(43,42,38,.4); }
.flatbook:hover { transform: translateX(14px) rotate(-1deg); }
.flatbook small { font-family: var(--font-sans); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; opacity: .8; }
@media (max-width: 860px) { .contents { grid-template-columns: 1fr; } .pile { order: 2; } .toc a { font-size: var(--step-1); } }

/* ---------- Section rows (01 INTRODUCTION style) ---------- */
section.sec { padding-block: 0 var(--space-6); }
section.sec > .sec-grid:first-child { border-top: 1px solid var(--text); padding-top: var(--space-3); }
.sec-grid { display: grid; grid-template-columns: 220px 1fr; gap: var(--space-5); }
.sec-num { font-family: var(--font-sans); font-weight: 500; font-size: var(--step--1); }
.sec-title { font-family: var(--font-sans); font-weight: 500; font-size: var(--step--1); letter-spacing: .06em; text-transform: uppercase; margin: 0 0 var(--space-5); }
.prose { max-width: var(--measure); }
.prose p { margin: 0 0 var(--space-3); }
.prose p.big { font-size: var(--step-1); line-height: 1.5; }
@media (max-width: 860px) { .sec-grid { grid-template-columns: 1fr; gap: var(--space-2); } }

/* Hairline rows (THE PRODUCT / THE GOAL style) */
.rows { list-style: none; margin: 0; padding: 0; }
.rows li { display: grid; grid-template-columns: minmax(120px, 1fr) 1.6fr; gap: var(--space-4); padding: var(--space-3) 0 var(--space-4); border-top: 1px solid var(--rule); }
.rows li:last-child { border-bottom: 1px solid var(--rule); }
.rows .k { font-family: var(--font-sans); font-size: var(--step--1); text-transform: uppercase; letter-spacing: .04em; padding-top: 3px; }
.rows .v { font-family: var(--font-sans); font-size: var(--step--1); line-height: 1.5; }
.rows .v.serif { font-family: var(--font-serif); font-size: var(--step-0); }
@media (max-width: 560px) { .rows li { grid-template-columns: 1fr; gap: 4px; } }

/* ---------- Bookshelf: 3D books on a slow, looping shelf ---------- */
.shelf {
  /* eye level with the shelf line: books keep their feet on it at any depth, lean or lift */
  position: relative; overflow: hidden; width: 100vw; margin: var(--space-5) 0 var(--space-2) calc(50% - 50vw);   /* full-bleed: edge to edge of the window */
  padding: 90px 0 34px; perspective: 1700px; perspective-origin: 50% calc(100% - 34px);
  /* the board travels with the books (attachment: local); joints repeat every --joint px, set by site.js to divide one loop */
  --joint: 560px;
  background:
    linear-gradient(rgba(43,42,38,.16), rgba(43,42,38,0)) 0 calc(100% - 4px) / 100% 16px no-repeat,
    repeating-linear-gradient(90deg, transparent 0 calc(var(--joint) - 2px), rgba(43,42,38,.22) calc(var(--joint) - 2px) calc(var(--joint) - 1px), rgba(255,255,255,.45) calc(var(--joint) - 1px) var(--joint)) 0 calc(100% - 20px) / var(--joint) 14px repeat-x,
    var(--paper-tex) 0 calc(100% - 20px) / var(--joint) 14px repeat-x,
    linear-gradient(rgba(43,42,38,.22) 0 1px, #E6DFD1 1px, #D3CAB8) 0 calc(100% - 20px) / 100% 14px repeat-x;
  background-attachment: scroll, local, local, local;
  background-blend-mode: normal, normal, multiply, normal;
}
.shelf-track {
  position: relative; display: flex; align-items: flex-end; width: max-content; padding-bottom: 0;
  transform-style: preserve-3d;
}
/* Scrollable by drag, swipe or trackpad; auto-drift is driven by site.js */
.shelf { overflow-x: auto; overflow-y: hidden; cursor: grab; overscroll-behavior-x: contain; -webkit-overflow-scrolling: touch; }
.shelf.dragging { cursor: grabbing; }
.shelf.dragging .book { pointer-events: none; }

.book {
  --h: 260px; --t: 50px; --d: 180px; --ry: -14deg; --lean: 0deg; --foot: 100px;
  position: relative; flex: none; width: var(--foot); height: var(--h);
  display: block; text-decoration: none; transform-style: preserve-3d;
  transform: rotate(var(--lean)); transform-origin: var(--lo, 50%) 100%;   /* lean on a bottom corner, never through the shelf */
}
.book .box {
  position: absolute; left: 50%; bottom: 0; width: var(--t); height: var(--h); margin-left: calc(var(--t) / -2);
  transform-style: preserve-3d;
  transform: translateZ(calc(var(--d) / -2)) rotateY(var(--ry));
  transition: transform .7s cubic-bezier(.2,.8,.2,1);
}
.book:hover, .book:focus-visible { z-index: 5; }
.book::after { content: ""; position: absolute; left: 6%; right: 6%; bottom: -3px; height: 6px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(43,42,38,.28), rgba(43,42,38,0)); transform: translateZ(-1px); pointer-events: none; transition: opacity .4s; }
.book:hover::after { opacity: .35; }
.book:hover .box, .book:focus-visible .box {
  transform: translateZ(60px) translateY(-16px) rotateY(-62deg);
}
.book.out:hover .box, .book.out:focus-visible .box {
  transform: translateZ(10px) translateY(-14px) rotateY(-90deg);
}
.book .f { position: absolute; left: 0; top: 0; backface-visibility: hidden; }
.book .spine {
  width: var(--t); height: var(--h); transform: translateZ(calc(var(--d) / 2));
  display: flex; flex-direction: column; align-items: center; justify-content: space-between; padding: 16px 0 18px;
  background-image: linear-gradient(90deg, rgba(0,0,0,.14), rgba(0,0,0,0) 12%, rgba(0,0,0,0) 85%, rgba(0,0,0,.12)), var(--cloth);
  background-blend-mode: normal; background-size: 100% 100%, 420px;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.05);
}
.book .cover {
  width: var(--d); height: var(--h); left: calc(var(--t) / 2 - var(--d) / 2);
  transform: rotateY(90deg) translateZ(calc(var(--t) / 2));
  display: flex; flex-direction: column; justify-content: space-between; padding: 16px;
  background-image: linear-gradient(90deg, rgba(0,0,0,.20), rgba(0,0,0,.04) 5%, rgba(0,0,0,0) 12%), var(--cloth);
  background-blend-mode: normal; background-size: 100% 100%, 420px;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.05);
}
.book .top {
  width: var(--t); height: var(--d); top: calc(var(--d) / -2);
  transform: rotateX(90deg);
  background: repeating-linear-gradient(90deg, #F3EFE6 0 2px, #E2DCCF 2px 3px);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.06);
}
.book .tx { flex: 1; min-height: 0; display: flex; align-items: flex-end; justify-content: center; gap: 5px; overflow: hidden; }
.book .tt { writing-mode: vertical-rl; transform: rotate(180deg); font-family: var(--font-sans); font-weight: 400; font-size: .64rem; letter-spacing: .18em; text-transform: uppercase; line-height: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-height: 72%; }
.book .s { writing-mode: vertical-rl; transform: rotate(180deg); font-family: var(--font-sans); font-size: .56rem; letter-spacing: .12em; text-transform: uppercase; opacity: .75; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-height: 100%; }
.book .y { font-family: var(--font-sans); font-weight: 200; font-size: 1.15rem; letter-spacing: -.02em; line-height: 1; }
.book.out .tt { font-size: .74rem; }
.book.out .y { font-size: 1.5rem; }
.book .ck { font-family: var(--font-sans); font-size: .58rem; letter-spacing: .14em; text-transform: uppercase; opacity: .8; }
.book .ct { font-family: var(--font-serif); font-size: 1.02rem; font-weight: 400; line-height: 1.15; display: -webkit-box; -webkit-line-clamp: 7; -webkit-box-orient: vertical; overflow: hidden; }
.book.out .ct { font-size: 1.25rem; }
.book .cy { display: flex; justify-content: space-between; align-items: end; gap: 8px; font-family: var(--font-serif); font-size: .85rem; }
.book .cy small { font-family: var(--font-sans); font-size: .52rem; letter-spacing: .1em; text-transform: uppercase; text-align: right; opacity: .8; }
.c-blue  .f:not(.top) { background-color: var(--spine-blue); }
.c-sage  .f:not(.top) { background-color: var(--spine-sage); }
.c-linen .f:not(.top) { background-color: var(--spine-linen); }
.c-kraft .f:not(.top) { background-color: var(--spine-kraft); }
@media (prefers-reduced-motion: reduce) {
  .book .box { transition: none; }
}

/* ---------- Publication list ---------- */
.pubs { list-style: none; margin: 0; padding: 0; }
.pub { display: grid; grid-template-columns: 64px 1fr auto; gap: var(--space-4); padding: var(--space-4) 0; border-bottom: 1px solid var(--rule); align-items: start; }
.pub:first-child { border-top: 1px solid var(--rule); }
.pub .year { font-family: var(--font-mono); font-size: var(--step--1); color: var(--text-muted); padding-top: 4px; }
.pub h3 { font-weight: 400; font-size: var(--step-1); line-height: 1.3; margin: 0 0 var(--space-1); }
.pub h3 a { color: var(--text); text-decoration: none; background-image: linear-gradient(var(--rule), var(--rule)); background-size: 100% 1px; background-position: 0 100%; background-repeat: no-repeat; }
.pub h3 a:hover { color: var(--link); }
.pub .meta { font-family: var(--font-sans); font-size: var(--step--1); color: var(--text-muted); margin: 0; }
.pub .meta i { font-style: italic; font-family: var(--font-serif); font-size: var(--step-0); color: var(--text); }
.pub .dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 10px; }
.pub .orig { font-family: var(--font-sans); font-size: var(--step--1); white-space: nowrap; padding-top: 4px; }
.tag { display: inline-block; font-family: var(--font-sans); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; border: 1px solid var(--rule); border-radius: 999px; padding: 1px 8px; margin-left: 6px; vertical-align: 2px; color: var(--text-muted); }
.sublabel { margin: var(--space-6) 0 var(--space-3); }
@media (max-width: 640px) { .pub { grid-template-columns: 1fr; gap: var(--space-1); } .pub .orig { padding: 0; } }

/* Focus list */
.pub.plain { grid-template-columns: 1fr; }
.pub.plain .meta { font-size: var(--step-0); line-height: 1.5; max-width: 60ch; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { display: grid; grid-template-columns: 120px 1fr; gap: var(--space-4); padding: var(--space-3) 0; border-top: 1px solid var(--rule); }
.timeline li:last-child { border-bottom: 1px solid var(--rule); }
.timeline .when { font-family: var(--font-mono); font-size: var(--step--1); color: var(--text-muted); padding-top: 3px; }
.timeline strong { font-weight: 500; }
.timeline .where { display: block; font-family: var(--font-sans); font-size: var(--step--1); color: var(--text-muted); }
@media (max-width: 560px) { .timeline li { grid-template-columns: 1fr; gap: 0; } }

/* ---------- Work page ---------- */
.work { display: block; max-width: 860px; padding: var(--space-5) 0 var(--space-6); border-top: 1px solid var(--text); }
.work h1 { font-weight: 400; font-size: var(--step-3); line-height: 1.08; letter-spacing: -.02em; margin: 0 0 var(--space-3); }
.work .trans { font-size: var(--step-1); color: var(--text-muted); font-style: italic; margin: 0 0 var(--space-5); max-width: 48ch; }
.work h2 { font-family: var(--font-sans); font-weight: 500; font-size: var(--step--1); letter-spacing: .06em; text-transform: uppercase; margin: var(--space-5) 0 var(--space-3); }
.points { list-style: none; counter-reset: pt; padding: 0; margin: 0; max-width: var(--measure); }
.points li { counter-increment: pt; display: grid; grid-template-columns: 44px 1fr; padding: var(--space-2) 0; border-top: 1px solid var(--rule); }
.points li::before { content: counter(pt, decimal-leading-zero); font-family: var(--font-mono); font-size: var(--step--1); color: var(--cornflower-deep); padding-top: 4px; }
.source-note { margin-top: var(--space-5); padding: var(--space-4); background: var(--surface); border: 1px solid var(--rule); border-radius: 2px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-3); font-family: var(--font-sans); font-size: var(--step--1); color: var(--text-muted); }
.source-note p { margin: 0; max-width: 52ch; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); border-top: 1px solid var(--text); padding: var(--space-3) 0 var(--space-6); font-family: var(--font-sans); font-size: var(--step--1); }
.pager a { color: var(--text); text-decoration: none; display: block; }
.pager a span { display: block; font-family: var(--font-serif); font-size: var(--step-1); line-height: 1.25; margin-top: 4px; }
.pager a:hover span { color: var(--cornflower-deep); }
.pager .next { text-align: right; }

/* ---------- Profile dialog ---------- */
dialog.profile {
  border: none; padding: 0; width: min(920px, calc(100vw - 2rem)); max-height: calc(100dvh - 2rem);
  background: var(--bg); color: var(--text); border-radius: 3px; box-shadow: 0 30px 80px -30px rgba(20,20,18,.5);
}
dialog.profile::backdrop { background: rgba(43,42,38,.45); backdrop-filter: blur(3px); }
dialog.profile[open] { animation: rise .35s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.profile-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; }
.portrait { background: var(--paper-tex) center / cover, var(--spine-blue); background-blend-mode: multiply; min-height: 420px; position: relative; display: flex; align-items: flex-end; padding: var(--space-4); }
.portrait > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.portrait .mono { font-family: var(--font-serif); font-size: 7rem; line-height: .8; color: var(--spine-blue-ink); opacity: .9; letter-spacing: -.05em; }
.profile-body { padding: var(--space-5); overflow-y: auto; }
.profile-body h2 { font-weight: 400; font-size: var(--step-3); line-height: 1.02; letter-spacing: -.02em; margin: var(--space-2) 0 var(--space-4); }
.profile-body h2 em { color: var(--cornflower-deep); }
.profile-body p { margin: 0 0 var(--space-3); }
.close { position: absolute; top: var(--space-3); right: var(--space-3); z-index: 2; background: var(--bg); }
@media (max-width: 720px) {
  dialog.profile { width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh; margin: 0; border-radius: 0; overflow-y: auto; overscroll-behavior: contain; }
  dialog.profile[open] { animation: sheet .4s var(--ease); }
  .profile-grid { grid-template-columns: 1fr; }
  .portrait { min-height: 0; aspect-ratio: 1 / 1; padding: 0; }
  .portrait > img { object-position: 62% 28%; }
  .profile-body { padding: var(--space-4) var(--space-4) var(--space-6); overflow: visible; }
  .profile-body h2 { font-size: var(--step-3); }
  .close { position: fixed; top: calc(12px + env(safe-area-inset-top)); right: 12px; box-shadow: 0 4px 14px -6px rgba(43,42,38,.45); }
}
@keyframes sheet { from { transform: translateY(24px); opacity: 0; } to { transform: none; opacity: 1; } }

footer { border-top: 1px solid var(--text); padding: var(--space-3) 0 var(--space-5); font-family: var(--font-sans); font-size: var(--step--1); color: var(--text-muted); }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); }

/* Bilingual: show one language at a time */
html[lang="en"] [lang="es"]:not(html), html[lang="es"] [lang="en"]:not(html) { display: none !important; }

/* Cover text appears only once a spine-out book turns toward you */
.book:not(.out) .cover > * { opacity: 0; transition: opacity .3s ease .15s; }
.book:not(.out):hover .cover > *, .book:not(.out):focus-visible .cover > * { opacity: 1; }
a.c-blue:hover  { color: var(--spine-blue-ink); }
a.c-sage:hover  { color: var(--spine-sage-ink); }
a.c-linen:hover { color: var(--spine-linen-ink); }
a.c-kraft:hover { color: var(--spine-kraft-ink); }
@media (max-width: 640px) { .shelf-track { zoom: .68; } .shelf { padding-top: 40px; } }

/* Cloth colours for flat books, work-page covers etc. (3D books colour their faces instead) */
.c-blue  { color: var(--spine-blue-ink); }  .c-blue:not(.book)  { background-color: var(--spine-blue); }
.c-sage  { color: var(--spine-sage-ink); }  .c-sage:not(.book)  { background-color: var(--spine-sage); }
.c-linen { color: var(--spine-linen-ink); } .c-linen:not(.book) { background-color: var(--spine-linen); }
.c-kraft { color: var(--spine-kraft-ink); } .c-kraft:not(.book) { background-color: var(--spine-kraft); }

/* ---------- Booklet (page-turning viewer in an iframe) ---------- */
.booklet { margin: 0 0 var(--space-5); }
.bk-frame { position: relative; width: 100%; height: clamp(420px, 56vw, 680px); max-height: 82vh; }
.bk-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: transparent; }
.bk-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-3); margin-top: var(--space-2); }
.bk-credit { font-family: var(--font-sans); font-size: .72rem; color: var(--text-muted); margin: 0; max-width: 62ch; }
@media (max-width: 700px) { .bk-frame { height: min(85svh, calc(100vw * var(--ratio) + 110px)); min-height: 340px; } }

/* Profile: photo collage — portrait fills the panel, two small prints tucked over its lower edge */
.portrait { overflow: visible; }
.snaps { position: absolute; inset: auto 0 0 0; height: 0; z-index: 2; pointer-events: none; }
.snap {
  position: absolute; width: 40%; aspect-ratio: 4 / 3; object-fit: cover; background: #FAF8F3;
  border: 6px solid #FAF8F3;
  box-shadow: 0 10px 22px -10px rgba(43,42,38,.55), 0 1px 2px rgba(43,42,38,.2);
}
.snap.s1 { left: 6%;  bottom: 22px; transform: rotate(-6deg); }
.snap.s2 { left: 38%; bottom: 8px;  transform: rotate(4deg); }
@media (min-width: 721px) {
  /* desktop: the portrait is a square print on the paper, never stretched; family prints overlap its lower edge */
  .profile-grid { grid-template-columns: minmax(300px, 0.85fr) 1.15fr; align-items: start; }
  .portrait { background: none; min-height: 0; display: block; padding: var(--space-5) var(--space-4) 0 var(--space-5); }
  .portrait > img {
    position: relative; inset: auto; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover; object-position: 60% 35%;
    border: 6px solid #FAF8F3; background: #FAF8F3;
    box-shadow: 0 14px 30px -16px rgba(43,42,38,.5), 0 1px 2px rgba(43,42,38,.15); transform: rotate(-1.2deg);
  }
  .portrait:has(.snaps) { padding-bottom: 110px; }
  .snaps { inset: auto var(--space-4) 0 var(--space-5); }
  .snap { width: 50%; }
  .snap.s1 { left: -2%; bottom: 18px; transform: rotate(-5deg); }
  .snap.s2 { left: 44%; bottom: 4px;  transform: rotate(4deg); }
}
@media (max-width: 720px) {
  .portrait:has(.snaps) { margin-bottom: 9vw; }
  .snap { width: 44%; }
  .snap.s1 { left: 5%;  bottom: -10vw; }
  .snap.s2 { left: 40%; bottom: -14vw; }
}

/* ---------- Dark mode: deeper cloth, dark board, no page grain ---------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --spine-blue:  #5F6B82;  --spine-blue-ink:  #EEF0F4;
    --spine-sage:  #47553A;  --spine-sage-ink:  #EDEFE6;
    --spine-linen: #6E7566;  --spine-linen-ink: #F0F1EA;
    --spine-kraft: #7C4A44;  --spine-kraft-ink: #F6ECE6;
  }
  :root:not([data-theme="light"]) body { background-image: none; }
  :root:not([data-theme="light"]) .shelf {
    background:
      linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,0)) 0 calc(100% - 4px) / 100% 16px no-repeat,
      repeating-linear-gradient(90deg, transparent 0 calc(var(--joint) - 2px), rgba(0,0,0,.45) calc(var(--joint) - 2px) calc(var(--joint) - 1px), rgba(255,255,255,.06) calc(var(--joint) - 1px) var(--joint)) 0 calc(100% - 20px) / var(--joint) 14px repeat-x,
      linear-gradient(rgba(255,255,255,.10) 0 1px, #3A3631 1px, #2A2723) 0 calc(100% - 20px) / 100% 14px repeat-x;
    background-attachment: scroll, local, local;
  }
  :root:not([data-theme="light"]) .book .top { background: repeating-linear-gradient(90deg, #BDB5A6 0 2px, #A69E8F 2px 3px); }
  :root:not([data-theme="light"]) .book::after { background: radial-gradient(closest-side, rgba(0,0,0,.6), rgba(0,0,0,0)); }
  :root:not([data-theme="light"]) .flatbook { box-shadow: 0 6px 12px -8px rgba(0,0,0,.8); }
  :root:not([data-theme="light"]) .snap { border-color: #E9E5DC; background: #E9E5DC; }
}

/* Baked cloth per colour (texture pre-multiplied into each image: no live blending on moving 3D faces) */
.c-blue  { --cloth: url("tex/cloth-blue.jpg"); }
.c-sage  { --cloth: url("tex/cloth-sage.jpg"); }
.c-linen { --cloth: url("tex/cloth-linen.jpg"); }
.c-kraft { --cloth: url("tex/cloth-kraft.jpg"); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .c-blue  { --cloth: url("tex/cloth-blue-d.jpg"); }
  :root:not([data-theme="light"]) .c-sage  { --cloth: url("tex/cloth-sage-d.jpg"); }
  :root:not([data-theme="light"]) .c-linen { --cloth: url("tex/cloth-linen-d.jpg"); }
  :root:not([data-theme="light"]) .c-kraft { --cloth: url("tex/cloth-kraft-d.jpg"); }
}

/* Foreshortened faces get flat cloth colour + shading only: a texture squeezed into a moving sliver shimmers.
   Spine-out books: the cover side is the sliver (texture returns when the book turns to face you on hover).
   Face-out books: the spine is the sliver. */
.book:not(.out) .cover,
.book.out .spine { background-image: linear-gradient(90deg, rgba(0,0,0,.18), rgba(0,0,0,.04) 6%, rgba(0,0,0,0) 14%, rgba(0,0,0,.08)); background-size: 100% 100%; }
.book:not(.out):hover .cover, .book:not(.out):focus-visible .cover {
  background-image: linear-gradient(90deg, rgba(0,0,0,.20), rgba(0,0,0,.04) 5%, rgba(0,0,0,0) 12%), var(--cloth);
  background-size: 100% 100%, 420px;
}

/* ---------- Group-1 polish: a11y, touch, pause control ---------- */
.vh { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.shelf-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-2); margin: 0 0 var(--space-6); font-family: var(--font-sans); font-size: var(--step--1); color: var(--text-muted); }
.shelf-toggle .when-off { display: none; }
.shelf-toggle.is-paused .when-on { display: none; }
.shelf-toggle.is-paused .when-off { display: inline; }
.book .tt { font-size: .72rem; }
.book.out .tt { font-size: .8rem; }
@media (max-width: 640px) { .book .tt { font-size: 1rem; } .book.out .tt { font-size: 1.05rem; } .book .y { font-size: 1.5rem; } }
/* comfortable tap targets on touch screens */
@media (pointer: coarse) {
  .pill { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding-inline: 16px; }
  .toc a { padding-block: 6px; }
  .pub .orig { display: inline-block; padding: 10px 0; }
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --cornflower-deep: #A9BBD6; }
}
.crumbs { padding: var(--space-3) 0 var(--space-2); font-family: var(--font-sans); font-size: var(--step--1); }