.letter-film-library{max-width:1540px;margin:0 auto;padding:64px clamp(22px,5vw,80px) 90px;scroll-margin-top:90px;color:#efe5d2}
.letter-film-library header{max-width:780px;margin-bottom:30px}
.letter-film-library .eyebrow{color:#cbb58b}
.letter-film-library h2{font:400 clamp(28px,3vw,42px)/1.4 var(--serif,serif);margin:10px 0}
.letter-film-library header>p:last-child{line-height:1.8;color:#c4c9bf}
.letter-film-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.letter-film-card{padding:0;text-align:left;background:#152b2c;border:1px solid #ae9a713d;color:inherit;cursor:pointer;overflow:hidden;border-radius:6px}
.letter-film-card:hover,.letter-film-card:focus-visible{border-color:#d1b983;box-shadow:0 8px 24px #0004}
.letter-film-cover{display:block;position:relative;aspect-ratio:16/9;background:#080e0f}
.letter-film-cover img,.letter-film-cover video{width:100%;height:100%;object-fit:cover;display:block}
.letter-film-watch{position:absolute;bottom:12px;left:16px;padding:6px 12px;border:1px solid #ead7ac70;background:#112526dd;color:#fff2d8;font-size:14px;border-radius:3px}
.letter-film-card-copy{display:grid;gap:10px;padding:23px}
.letter-film-card-copy small{color:#c4ae83;font-size:12px;letter-spacing:.12em}
.letter-film-card-copy strong{font:400 clamp(22px,2.2vw,29px)/1.5 var(--serif,serif)}
.letter-film-card-copy>span{font-size:15px;line-height:1.8;color:#c8cec2}
.cinema-hall .letter-film-jump{position:absolute;right:30px;bottom:25px;background:#183334dc;color:#f1e5ca;border:1px solid #bca77a;padding:10px 16px;border-radius:3px;cursor:pointer}
.letter-film-dialog{width:min(1380px,calc(100vw - 40px));max-width:none;max-height:94dvh;padding:0;border:1px solid #bca77a;border-radius:8px;background:#f6f0e1;color:#183b3d;box-shadow:0 20px 90px #000a}
.letter-film-dialog::backdrop{background:#05191be8}
.letter-film-dialog-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 26px;background:#183a3c;color:#faefd7}
.letter-film-dialog-head small{font-size:12px;color:#d5bd8c;letter-spacing:.08em}
.letter-film-dialog-head h2{font:500 clamp(23px,2.8vw,34px)/1.5 var(--serif,serif);margin:4px 0 0}
.letter-film-dialog button{border:1px solid #ae945c;border-radius:4px;padding:9px 15px;background:#1e4446;color:#fff2d7;cursor:pointer}
.letter-film-dialog video{display:block;width:100%;max-height:68dvh;aspect-ratio:16/9;object-fit:contain;background:#030707}
.letter-film-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 26px;background:#e8e1cb;border-bottom:1px solid #cdbb98}
.letter-film-tools p{flex:1;min-width:160px;font-size:14px;margin:0}
.letter-film-tools label{display:flex;gap:8px;align-items:center;font-size:14px}
.letter-film-tools select{color:#193b3d;background:#fffaf0;border:1px solid #ac986b;border-radius:3px;padding:7px}
.letter-film-summary{margin:0;padding:18px 26px;font-size:16px;line-height:1.8}
.letter-film-source{margin:0 26px 26px;border-top:1px solid #cab891;padding-top:16px;line-height:1.85}
.letter-film-source summary{font-weight:600;cursor:pointer}
.letter-film-source h3{font-size:20px}
.letter-film-material{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px;align-items:start}
.letter-film-material img{display:block;width:100%;max-height:700px;object-fit:contain;background:#e5dfce}
.letter-film-material a span{display:block;text-align:center;background:#1b3e40;color:#fff2d7;padding:8px}
.letter-film-material h4{font-size:17px;margin:0 0 10px}
.letter-film-material p{white-space:pre-line;font-size:16px;margin:0 0 22px}
.letter-film-period{grid-column:1/-1;display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 18px;padding:12px 16px;border:1px solid #ad9767;background:#163b3deb;color:#fff1d4;border-radius:4px}
.letter-film-period>span{font-size:13px;color:#d7bc89;margin-right:8px}
.letter-film-period button{background:#f5ebd5;color:#193d40;border:1px solid #c1aa7a;padding:10px 14px;border-radius:3px;cursor:pointer;text-align:left}
.letter-film-period small{opacity:.8;margin-left:8px}
@media(max-width:700px){.letter-film-grid{grid-template-columns:1fr;gap:20px}.letter-film-dialog{width:calc(100vw - 14px);max-height:97dvh}.letter-film-dialog-head{padding:14px;gap:10px}.letter-film-dialog-head button{white-space:nowrap}.letter-film-dialog video{max-height:60dvh}.letter-film-tools{padding:12px 14px}.letter-film-summary{padding:15px}.letter-film-source{margin:0 15px 18px}.letter-film-material{grid-template-columns:1fr}.cinema-hall .letter-film-jump{bottom:70px;right:20px}}

.cinema-root:has(.cinema-detail:not([hidden])) .letter-film-library{display:none}

.guided-film-actions{display:flex;justify-content:flex-end;padding:14px 26px;background:#f0e3c7}.guided-film-actions button:disabled{opacity:.55;cursor:default}
.cinema-detail .guided-film-actions button{color:#fff4de;background:#1d4441;border:1px solid #ac935e;padding:12px 18px;border-radius:4px}.cinema-detail .guided-film-actions button:disabled{opacity:.55;cursor:default}
.letter-film-dialog:has(.guided-film-actions) video{max-height:min(65dvh,calc(94dvh - 230px))}

/* The source stays beside the film, with its text available below the image. */
.letter-film-dialog{width:min(1680px,calc(100vw - 40px));overflow:hidden}
.letter-film-dialog[open]{display:flex;flex-direction:column}
.letter-film-dialog-head{flex-shrink:0}
.letter-film-workspace{display:grid;grid-template-columns:minmax(0,1fr);min-height:0;overflow:auto;overscroll-behavior:contain}
.has-letter-original .letter-film-workspace{grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr)}
.letter-film-original{min-width:0;max-height:calc(94dvh - 110px);overflow:auto;overscroll-behavior:contain;padding:20px;border-right:1px solid #cdbb98;background:#eee6d2}
.letter-film-original h3{margin:0 0 14px;font:600 21px/1.5 var(--serif,serif)}
.letter-film-original figure{margin:0}
.letter-film-scan{display:block;width:100%;height:min(55dvh,620px);object-fit:contain;background:#ded8c6;cursor:zoom-in}
.letter-film-original [data-film-source-zoom]{display:block;width:100%;border-radius:0 0 3px 3px;padding:10px}
.letter-film-original figcaption{margin-top:11px;font-size:14px;line-height:1.7;color:#50605a}
.letter-film-source-text{margin-top:18px;padding-top:14px;border-top:1px solid #c9b997;font-size:16px;line-height:1.85}
.letter-film-source-text summary{font-weight:600;cursor:pointer}
.letter-film-source-text h4{font-size:17px;margin:16px 0 8px}
.letter-film-source-text p{white-space:pre-line;margin:0 0 18px}
.letter-film-player{min-width:0;background:#f6f0e1}
.letter-film-dialog .letter-film-player video{max-height:60dvh;aspect-ratio:16/9;object-fit:contain}
.letter-film-player .letter-film-tools{padding:12px 20px}
.letter-film-player .guided-film-actions{padding:14px 20px}
.letter-film-player .letter-film-summary{padding:16px 20px}
.letter-film-dialog button:focus-visible,.letter-film-source-text summary:focus-visible{outline:3px solid #c18b42;outline-offset:3px}
@media(max-width:980px){
 .letter-film-dialog{width:calc(100vw - 20px)}
 .has-letter-original .letter-film-workspace{grid-template-columns:minmax(0,1fr)}
 .letter-film-player{order:0}.letter-film-original{order:1;max-height:none;overflow:visible;border-right:0;border-top:1px solid #cdbb98}
 .letter-film-scan{height:min(52dvh,520px)}
}
@media(max-width:700px){
 .letter-film-dialog{width:calc(100vw - 14px);max-height:97dvh}
 .letter-film-original{padding:16px}
 .letter-film-dialog .letter-film-player video{max-height:55dvh}
 .letter-film-player .letter-film-tools,.letter-film-player .guided-film-actions,.letter-film-player .letter-film-summary{padding:12px 14px}
}

/* Gallery projection presentation shared with the thesis review edition. */
.letter-film-library{max-width:none;padding:54px 0 0;background:#0d1718}.letter-film-library>header{max-width:1440px;margin:0 auto;padding:0 clamp(24px,7vw,120px) 28px}
.letter-projection-stage{position:relative;isolation:isolate;min-height:650px;padding:8vh 12vw 9vh;background:linear-gradient(#0b1f24a6,#0c1c1f66 48%,#091315c9),url('/assets/cinema/hall.jpg') center 52%/cover}
.letter-projection-stage.stage-1{background-position:center 80%;border-top:1px solid #b0d8d34d}
.letter-projection-stage .letter-film-grid{gap:7vw;align-items:center;max-width:1600px;margin:auto}
.letter-projection-stage .hologram-card{overflow:visible;border:none;border-radius:0;background:transparent;box-shadow:none;color:#f3f6f0}
.hologram-card .letter-film-cover{isolation:isolate;background:transparent;filter:drop-shadow(0 0 25px #a8e3ee45);border:1px solid #b0effb50;box-shadow:0 0 40px #8fd9e62b,0 25px 60px #0007;transform:perspective(1200px) rotateY(3deg);transition:transform .35s,border-color .35s}
.hologram-card:nth-child(even) .letter-film-cover{transform:perspective(1200px) rotateY(-3deg)}
.hologram-card:hover .letter-film-cover,.hologram-card:focus-visible .letter-film-cover{transform:perspective(1200px) rotateY(0) translateY(-6px);border-color:#dafaff}
.hologram-card .letter-film-cover:after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,#91d9e62b,transparent 50%,#ace7f025);pointer-events:none}
.hologram-card .letter-film-cover img,.hologram-card .letter-film-cover video{opacity:.84;filter:saturate(.75) contrast(.98);mask-image:linear-gradient(to bottom,transparent,#000 7%,#000 92%,transparent)}
.hologram-card .projection-shimmer{position:absolute;inset:0;pointer-events:none;opacity:.13;background:repeating-linear-gradient(0deg,transparent 0 3px,#c4f5ff50 4px);mix-blend-mode:screen}
.hologram-card .letter-film-card-copy{padding:22px 0 14px;border-bottom:1px solid #c6e5e169;text-shadow:0 2px 10px #000}
.hologram-card .letter-film-card-copy strong{color:#f3f5ed}.hologram-card .letter-film-card-copy>span{color:#dfebe4}.hologram-card .letter-film-watch{bottom:16px;background:#0e2d32e6;border-color:#b6e4df99}
.letter-film-dialog::backdrop{background:linear-gradient(#061a1be8,#061a1bea),url('/assets/cinema/hall.jpg') center/cover}
@media(max-width:800px){.letter-projection-stage{padding:32px 7vw;min-height:0}.letter-projection-stage .letter-film-grid{grid-template-columns:1fr;gap:35px}.hologram-card .letter-film-cover{transform:none!important}}
@media(prefers-reduced-motion:reduce){.hologram-card .letter-film-cover{transition:none;transform:none!important}}