/* AI studies: composed at their native aspect ratios. */
.ai-page { --ai-gap: clamp(20px, 2.2vw, 36px); }
.ai-page .ai-intro { padding-bottom: 38px; }
.ai-intro-bottom { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-top: 34px; }
.ai-intro-bottom > p:first-child { max-width: 450px; font-size: 14px; line-height: 1.8; }
.ai-study-count { flex-shrink: 0; font-size: 10px; color: var(--muted); letter-spacing: .04em; }
.ai-study-count span { margin: 0 12px; color: var(--rule); }
.ai-chapter-nav { display: flex; flex-wrap: wrap; gap: 12px 27px; border-top: 1px solid var(--rule); padding-top: 20px; margin-top: 35px; font-size: 10px; }
.ai-chapter-nav a { padding: 3px 0; }
.ai-chapter-nav a:hover { text-decoration: underline; text-underline-offset: 5px; }
.ai-spread { padding: 0 0 clamp(58px, 7vw, 108px); scroll-margin-top: 110px; }
.ai-spread-heading { display: flex; align-items: baseline; gap: 22px; padding: 24px 0 25px; border-top: 1px solid var(--rule); }
.ai-spread-heading > .eyebrow { color: var(--muted); font-size: 9px; }
.ai-spread-heading h2 { font: clamp(25px, 2.45vw, 37px)/1.15 var(--serif); }
.ai-layout { display: grid; gap: var(--ai-gap); width: 100%; max-width: 1320px; margin-inline: auto; }
.ai-row { display: grid; grid-template-columns: var(--columns, 1fr 1fr); gap: var(--ai-gap); align-items: start; }
.ai-plate, .ai-film { min-width: 0; margin: 0; }
.ai-plate > img { display: block; width: 100%; height: auto; }
.ai-plate figcaption, .ai-film figcaption { display: flex; justify-content: start; align-items: baseline; gap: 12px; margin: 12px 0 0; min-height: 20px; color: var(--muted); font-size: 10px; line-height: 1.6; }
.ai-plate-number { flex-shrink: 0; min-width: 20px; font-variant-numeric: tabular-nums; color: var(--ink); font-size: 9px; }
.ai-layout--opening { grid-template-columns: 1.23fr 1fr; align-items: start; max-width: 1180px; }
.ai-opening-wide { grid-column: 1; grid-row: 1; }
.ai-opening-tall { grid-column: 2; grid-row: 1 / span 2; }
.ai-opening-small { grid-column: 1; grid-row: 2; }
.ai-tapestry { display: grid; grid-template-columns: 1.4fr .558fr .5625fr; gap: var(--ai-gap); align-items: start; width: 100%; max-width: 1120px; margin-inline: auto; }
.ai-tapestry .ai-film-kind { display: none; }
.ai-bedrooms { display: grid; grid-template-columns: 1.18fr 1fr; gap: var(--ai-gap); align-items: start; margin-top: 12px; }
.ai-bedroom-wide { grid-column: 1; grid-row: 1; }
.ai-bedroom-tall { grid-column: 2; grid-row: 1 / span 2; }
.ai-bedroom-small { grid-column: 1; grid-row: 2; }
.ai-row--arch { max-width: 1080px; width: 88%; margin: 0 auto 10px; }
.ai-row--outdoor { width: 100%; max-width: 1080px; margin-inline: auto; }

/* Book-detail studies sit at a quieter scale within the editorial spreads. */
#ai-a08 { width: 90%; max-width: 460px; justify-self: end; align-self: center; }
#ai-b04 { width: 88%; max-width: 480px; justify-self: end; align-self: end; }
#ai-b11 { width: 90%; max-width: 400px; justify-self: center; align-self: center; }
#ai-old05 { width: 92%; max-width: 520px; justify-self: center; align-self: center; }
#ai-old06 { width: 90%; max-width: 460px; justify-self: center; align-self: center; }
.ai-film-frame { position: relative; width: 100%; }
.ai-film video { display: block; width: 100%; height: auto; background: #d8d2ca; }
.ai-film-cover { position: absolute; inset: 0; border: 0; display: flex; align-items: end; justify-content: start; padding: 14px; width: 100%; background: transparent; text-align: left; }
.ai-film-cover > span { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--paper); color: var(--ink); font-size: 10px; line-height: 1.5; }
.ai-film-cover[hidden] { display: none; }
.ai-film-duration { color: var(--muted); font-size: 9px; font-variant-numeric: tabular-nums; }
.ai-tapestry .ai-film-duration { display: none; }
.ai-film-kind { margin-left: auto; font-size: 8px; letter-spacing: .05em; }
.ai-film--landscape { width: 84%; margin: 12px auto 0; }
.ai-row--process { max-width: 1280px; margin: auto; }
.ai-process-note { display: grid; grid-template-columns: 20% 1fr 1fr; gap: 28px; align-items: baseline; border-top: 1px solid var(--rule); margin-top: 35px; padding-top: 28px; }
.ai-process-note h3 { font: 29px/1.12 var(--serif); }
.ai-process-note p { font-size: 11px; line-height: 1.8; max-width: 360px; }

/* The homepage presents three full-frame studies, with an explicit way in. */
.image-direction-preview.ai-home-preview { display: grid; grid-template-columns: 21% minmax(0, 1fr); gap: 5%; align-items: center; }
.ai-home-heading > p { color: var(--muted); font-size: 10px; }
.ai-home-heading .text-link { display: inline-flex; gap: 22px; font-size: 11px; margin-top: 23px; }
.ai-home-art { display: grid; grid-template-columns: 1.792fr .558fr 1.339fr; gap: clamp(12px, 1.4vw, 24px); align-items: start; }
.ai-home-image { display: block; min-width: 0; }
.ai-home-image img { width: 100%; height: auto; }
.ai-home-image:hover { outline: 1px solid var(--rule); outline-offset: 5px; }

@media (max-width: 1050px) {
  .ai-page { --ai-gap: 22px; }
  .ai-tapestry { grid-template-columns: .558fr .5625fr; }
  .ai-tapestry > .ai-plate:first-child { grid-column: 1 / -1; width: 82%; margin: 0 auto 5px; }
  .ai-film-kind { font-size: 7px; }
  .ai-row--arch { width: 92%; }
  .ai-process-note { grid-template-columns: 1fr 1.4fr; gap: 12px 28px; }
  .ai-process-note > .eyebrow { grid-column: 1 / -1; }
  .image-direction-preview.ai-home-preview { grid-template-columns: 1fr; gap: 25px; }
  .ai-home-heading { display: grid; grid-template-columns: 1fr auto; column-gap: 20px; align-items: baseline; }
  .ai-home-heading > .eyebrow, .ai-home-heading h2 { grid-column: 1; }
  .ai-home-heading h2 { margin: 14px 0 0; }
  .ai-home-heading > p { grid-column: 2; grid-row: 1; }
  .ai-home-heading .text-link { grid-column: 2; grid-row: 2; align-self: end; }
}

@media (max-width: 650px) {
  .ai-page { --ai-gap: 28px; }
  .ai-page .ai-intro { padding-bottom: 24px; }
  .ai-intro-bottom { display: block; margin-top: 25px; }
  .ai-intro-bottom > p:first-child { font-size: 12px; max-width: 340px; }
  .ai-study-count { margin-top: 18px; font-size: 9px; }
  .ai-study-count span { margin: 0 9px; }
  .ai-chapter-nav { gap: 9px 22px; margin-top: 25px; padding-top: 16px; font-size: 9px; }
  .ai-spread { padding-bottom: 48px; scroll-margin-top: 94px; }
  .ai-spread-heading { gap: 16px; padding: 20px 0; }
  .ai-spread-heading h2 { font-size: 28px; }
  .ai-layout--opening, .ai-row, .ai-bedrooms { grid-template-columns: minmax(0, 1fr); }
  .ai-opening-wide, .ai-opening-tall, .ai-opening-small, .ai-bedroom-wide, .ai-bedroom-tall, .ai-bedroom-small { grid-column: auto; grid-row: auto; }
  .ai-plate--portrait { width: 80%; margin-left: auto; margin-right: auto; }
  .ai-plate figcaption, .ai-film figcaption { margin-top: 9px; gap: 10px; font-size: 9px; min-height: 15px; }
  .ai-plate-number { font-size: 8px; }
  #ai-a08 { width: 80%; max-width: none; justify-self: center; }
  #ai-b04 { width: 86%; justify-self: end; }
  #ai-b11 { width: 84%; justify-self: end; }
  #ai-old05 { width: 90%; margin-inline: auto; }
  #ai-old06 { width: 84%; }
  .ai-row--three { gap: 28px; }
  .ai-tapestry { gap: 24px 14px; }
  .ai-tapestry > .ai-plate:first-child { margin-top: 0; margin-bottom: 0; }
  .ai-tapestry > .ai-plate--portrait { width: 100%; }
  .ai-bedrooms { margin-top: 0; }
  .ai-row--arch { width: 100%; margin: 0; }
  .ai-film--landscape { width: 100%; margin-top: 0; }
  .ai-film-cover { padding: 12px; }
  .ai-film-cover > span { font-size: 10px; padding: 10px 12px; }
  .ai-film-kind { font-size: 7px; }
  .ai-row--process > .ai-film { width: 80%; margin: 0 auto; }
  .ai-process-note { grid-template-columns: 1fr; gap: 14px; margin-top: 28px; padding-top: 22px; }
  .ai-process-note > .eyebrow { grid-column: auto; }
  .ai-process-note h3 { font-size: 30px; }
  .ai-process-note p { font-size: 11px; max-width: 310px; }
  .ai-home-heading { display: block; }
  .ai-home-heading h2 { margin: 13px 0 18px; font-size: 36px; }
  .ai-home-heading .text-link { margin-top: 14px; font-size: 10px; }
  .ai-home-art { grid-template-columns: .558fr 1.339fr; gap: 18px 14px; }
  .ai-home-image-1 { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html:has(.ai-page) { scroll-behavior: auto; }
}

/* A persistent pause control above the native audio/timeline controls. */
.ai-film-frame .ai-motion-toggle{position:absolute;left:auto;right:12px;top:12px;bottom:auto;z-index:2;min-height:44px;padding:8px 12px;background:#f4f2efed;border:0;font:10px/1.5 var(--sans);color:var(--ink);display:flex;align-items:center;gap:7px}
.ai-film-frame .ai-motion-toggle[hidden]{display:none}
.ai-film-frame .ai-motion-toggle .play-symbol{font-size:12px}
@media(max-width:650px){.ai-film-frame .ai-motion-toggle{top:8px;right:8px;padding:8px 10px}}

.ai-linework .ai-plate{max-width:1100px;margin-inline:auto}
.ai-linework figcaption{flex-wrap:wrap}
.ai-linework figcaption a{margin-left:auto;text-decoration:underline;text-underline-offset:4px}

/* Compact labels keep the image studies in the foreground. */
.image-direction-preview.ai-home-preview{display:block}
.ai-home-heading{display:flex;justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:28px}
.ai-home-heading .eyebrow{margin:0}
.ai-home-heading .text-link{margin:0}
.ai-page .ai-intro-bottom{margin-top:18px}
@media(max-width:1050px){
  .ai-home-heading{margin-bottom:24px}
}
@media(max-width:650px){
  .ai-home-heading{flex-wrap:wrap;margin-bottom:20px}
}

/* The teaching material closes the image studies as a distinct, readable project. */
.ai-prompt-book .prompt-book-intro{font-size:12px;color:var(--muted);margin:-6px 0 30px;max-width:580px;line-height:1.8}
.prompt-book-layout{display:grid;grid-template-columns:1.65fr 1fr;gap:38px;align-items:center;max-width:1120px;margin-inline:auto}
.prompt-book-excerpts{display:grid;gap:26px}
.ai-prompt-book .ai-plate{margin:0;width:100%}
.ai-prompt-book .image-hover-frame{background:#fff}
.ai-prompt-book figcaption{justify-content:space-between;flex-wrap:wrap;gap:8px}
@media(max-width:650px){
.prompt-book-layout{grid-template-columns:1fr;gap:26px}
.prompt-book-excerpts{gap:24px}
.ai-prompt-book .prompt-book-intro{margin:0 0 24px;font-size:11px}
}