:root{color-scheme:dark;--gold:#e8c58c;--ink:#0b090d;--violet:#6b3d7f}*{box-sizing:border-box}body{margin:0;background:var(--ink);color:#f9e9d0;font-family:Georgia,'Times New Roman',serif}button{font:inherit;cursor:pointer}button:focus-visible{outline:2px solid #fff;outline-offset:4px}#gallery{position:relative;width:100%;height:100svh;min-height:430px;overflow:hidden}.scene{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .5s ease;overflow:hidden}.scene.active{opacity:1;visibility:visible}.scene-img,.chamber-image,.chamber-image img,.flight video{width:100%;height:100%;object-fit:cover}.scene-img,.chamber-image img{object-position:center}.scene-img{display:block}.chamber-image{position:absolute;inset:0;transition:transform 3.3s cubic-bezier(.22,.65,.25,1),filter 3.3s;transform-origin:55% 46%}.chamber-image.zoomed{transform:scale(1.2);filter:brightness(.88)}
.closeup-stage{position:absolute;inset:0;background:#110c14;opacity:0;visibility:hidden;pointer-events:none;transition:opacity 1.2s ease,visibility 1.2s ease;display:flex;align-items:center;justify-content:flex-start;padding:3.5vh 0 3.5vh 1vw}
.closeup-stage.visible{opacity:1;visibility:visible}
.closeup-image{width:calc(100% - clamp(330px,27vw,440px));height:100%;object-fit:contain;object-position:center;display:block}
#chamber:has(.closeup-stage.visible) .chamber-image{opacity:0;transition:opacity 1.2s ease,transform 3.3s cubic-bezier(.22,.65,.25,1)}.chamber-image img{display:block}.scene-actions{position:absolute;bottom:6%;left:50%;transform:translateX(-50%);display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap;width:min(94%,700px);transition:opacity .5s}.chamber-actions{bottom:5%}.scene-actions.fade{opacity:0;pointer-events:none}.glass-button,.top-control,.detail-panel button,.info-dialog button{border:1px solid rgba(236,192,121,.75);background:linear-gradient(130deg,rgba(12,9,15,.88),rgba(40,23,46,.8));color:#ffdfaa;padding:12px 22px;border-radius:999px;box-shadow:0 0 22px rgba(155,92,168,.18);transition:background .2s,box-shadow .2s}.glass-button:hover,.detail-panel button:hover{background:rgba(91,44,102,.88);box-shadow:0 0 24px rgba(205,128,223,.45)}.primary{font-size:clamp(16px,2vw,23px);padding:16px 35px}.topbar{position:absolute;top:0;left:0;right:0;z-index:12;display:flex;align-items:center;justify-content:space-between;padding:17px 24px;background:linear-gradient(to bottom,rgba(0,0,0,.65),transparent);pointer-events:none}.topbar>*{pointer-events:auto}.brand{font-size:26px;letter-spacing:.08em;color:#f9d6a0;text-shadow:0 2px 12px #000}.brand small{display:block;font-size:9px;letter-spacing:.25em}.top-control{font-size:13px;padding:9px 17px}.flight video{display:block;background:#09070a}.skip{position:absolute;bottom:5%;right:4%;z-index:2}.modal-backdrop{position:absolute;inset:0;z-index:20;background:rgba(0,0,0,.66);display:grid;place-items:center;padding:20px;backdrop-filter:blur(10px)}[hidden]{display:none!important}.directory-dialog,.info-dialog{width:min(1080px,100%);max-height:90svh;overflow:auto;background:linear-gradient(145deg,rgba(28,16,34,.96),rgba(8,7,12,.96));border:1px solid rgba(226,177,113,.65);border-radius:22px;padding:clamp(20px,3vw,38px);box-shadow:0 0 80px rgba(112,48,133,.45)}.modal-top{display:flex;justify-content:space-between;gap:15px;align-items:flex-start}.modal-top h1,.modal-top h2{font-size:clamp(26px,4vw,43px);font-weight:400;margin:8px 0 0}.eyebrow{font-size:11px;letter-spacing:.22em;color:#d6ae78}.icon-button{border:1px solid rgba(224,178,116,.5);border-radius:50%;background:#211425;color:#f5d2a3;font-size:25px;width:40px;height:40px;flex-shrink:0}.directory-subtitle{color:#bcaeaf;margin:15px 0 22px}.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.tile{min-height:145px;border:1px solid #8b674d;border-radius:12px;background:radial-gradient(circle at 60% 35%,#55375e 0,#211725 48%,#0e0b10 100%);color:#e7c68e;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;position:relative;overflow:hidden}.tile:before{content:'✧';position:absolute;font-size:100px;opacity:.13;transform:rotate(25deg)}.tile .number{font-size:28px;z-index:1}.tile .tile-label{font-size:12px;letter-spacing:.1em;z-index:1}.tile:disabled{opacity:.48;cursor:not-allowed}.tile:not(:disabled):hover{border-color:#f1d49b;box-shadow:0 0 30px #714178}.detail-panel{position:absolute;right:3%;top:50%;transform:translateY(-50%);width:clamp(330px,27vw,440px);max-height:84%;overflow:auto;padding:clamp(22px,2.1vw,36px);z-index:3;border:1px solid #e0b77b;border-radius:20px;background:linear-gradient(150deg,rgba(23,11,27,.94),rgba(10,7,12,.93));box-shadow:0 0 34px rgba(182,86,205,.48),inset 0 0 24px rgba(114,48,140,.16);text-align:center}.panel-heading{display:flex;justify-content:space-between;align-items:start;font-size:29px}.panel-heading small{display:block;font-size:9px;letter-spacing:.18em}.panel-heading .icon-button{width:29px;height:29px;font-size:19px}.detail-panel .eyebrow{margin-top:32px}.status{color:#cdbbbf;font-size:14px}.detail-panel>button:not(.subtle-button){width:100%;margin-top:16px;padding:14px 9px;font-size:clamp(15px,1.15vw,18px)}.detail-panel .subtle-button{margin-top:24px;font-size:12px;background:transparent;border:0;text-decoration:underline;box-shadow:none}.restore{position:absolute;bottom:6%;right:4%}.info-dialog{width:min(560px,100%);font-family:Georgia,serif;line-height:1.65}.info-dialog p{color:#e3d2c5}.info-dialog .fine{font-size:13px;color:#bcb0b8}.info-dialog .notice{border-left:2px solid var(--gold);padding-left:14px}.info-dialog button.action{margin-top:15px}.toast{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);background:#201327;border:1px solid var(--gold);padding:12px 18px;border-radius:10px;z-index:50;opacity:0;pointer-events:none;transition:opacity .3s}.toast.visible{opacity:1}@media(max-width:750px){.tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.tile{min-height:110px}.topbar{padding:12px}.brand{font-size:20px}.top-control{padding:7px 10px}.chamber-image.zoomed{transform:scale(1.08)}.closeup-stage{padding:0;align-items:flex-start;justify-content:center}.closeup-image{width:100%;height:52%;object-fit:contain;object-position:center top}.detail-panel{z-index:3}.detail-panel{top:auto;bottom:2%;left:3%;right:3%;transform:none;width:auto;max-height:52%;padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.panel-heading,.detail-panel .eyebrow,.status,.detail-panel .subtle-button{grid-column:1/-1;margin:0}.panel-heading{font-size:20px}.detail-panel>button:not(.subtle-button){margin:0;padding:9px 5px;font-size:12px}.scene-img,.chamber-image img{object-fit:contain;background:#0b090d}.scene-actions{bottom:10%}.primary{font-size:16px;padding:12px 20px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}

@media(min-width:751px) and (max-height:650px){.detail-panel{max-height:92%;padding:12px 18px}.detail-panel .eyebrow{margin-top:10px}.detail-panel>button:not(.subtle-button){margin-top:8px;padding:9px}}

/* V3: the approved clean, full-width chamber replaces the obsolete baked-in UI. */
.chamber-image{transform-origin:48% 48%}
.chamber-image.zoomed{transform:scale(1.32);filter:brightness(.78)}
.closeup-stage{padding:0;justify-content:flex-start;background:radial-gradient(circle at 45% 45%,#32192f,#100b12 80%)}
.closeup-image{width:76%;height:100%;object-fit:cover;object-position:48% center;transform:scale(1.07);transform-origin:center}
.detail-panel{background:linear-gradient(145deg,rgba(60,24,77,.97),rgba(22,9,32,.98) 65%,rgba(9,6,15,.97));border:1.5px solid #f0c787;box-shadow:0 0 0 4px rgba(129,64,151,.2),0 0 55px rgba(189,82,224,.45),inset 0 0 35px rgba(123,62,155,.2)}
.detail-panel>button:not(.subtle-button){border-color:#d9ae71;background:linear-gradient(110deg,rgba(28,12,36,.95),rgba(88,40,105,.75));}
@media(max-width:750px){.closeup-image{width:100%;height:54%;object-fit:contain;transform:none}.chamber-image.zoomed{transform:scale(1.1)}.detail-panel{background:linear-gradient(145deg,rgba(59,24,74,.98),rgba(13,8,22,.98))}}

/* V3b: first-arrival film over the unchanged rotunda. */
.entrance{position:absolute;inset:0;z-index:30;background:#000;opacity:1;visibility:visible;transition:opacity 1.45s ease,visibility 1.45s ease;overflow:hidden}
.entrance video{width:100%;height:100%;display:block;object-fit:cover;background:#000}
.entrance.dismissed{opacity:0;visibility:hidden;pointer-events:none}
.entrance-skip{position:absolute;bottom:5%;right:4%;z-index:2;font-size:14px}
#gallery.intro-active .topbar,#gallery.intro-active #rotunda .scene-actions{opacity:0;pointer-events:none}
#gallery .topbar,#gallery #rotunda .scene-actions{transition:opacity 1.1s ease}
@media(max-width:750px){.entrance video{object-fit:contain}.entrance-skip{bottom:4%;right:4%}}

/* V3c: preserve the entire frame in both collections, beside the standard-width options panel. */
@media(min-width:751px){.closeup-stage{padding:2vh 0 2vh 1vw}.closeup-image{width:calc(100% - clamp(330px,27vw,440px) - 4vw);height:100%;object-fit:contain;object-position:center;transform:none}}
@media(max-width:750px){.closeup-image{width:100%;height:54%;object-fit:contain;transform:none}}

/* V5k: independent gallery soundscape player; never changes scene layout */
.soundscape-shell{position:absolute;z-index:15;top:72px;right:24px;font-family:Georgia,'Times New Roman',serif}.soundscape-toggle{border:1px solid rgba(236,192,121,.75);border-radius:999px;padding:10px 17px;background:linear-gradient(135deg,rgba(18,10,24,.95),rgba(66,33,78,.92));color:#f7d9a9;box-shadow:0 3px 25px #0008;font-size:13px}.soundscape-panel{position:absolute;right:0;top:49px;width:min(345px,calc(100vw - 28px));max-height:min(72svh,610px);overflow:auto;padding:19px;border:1px solid #e0b77b;border-radius:17px;background:linear-gradient(145deg,rgba(49,23,60,.98),rgba(10,7,15,.99));box-shadow:0 15px 45px #000b,0 0 30px #66387566;color:#f4dfbf}.soundscape-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;letter-spacing:.16em;color:#e8c58c;font-size:12px}.soundscape-close{background:transparent;border:0;color:#f4dfbf;font-size:25px;padding:0 5px}.soundscape-subtitle{color:#bca9b9;font-size:13px;margin:9px 0 15px}.soundscape-tracks{display:grid;grid-template-columns:1fr 1fr;gap:8px}.soundscape-tracks button{min-height:80px;padding:12px 8px;border:1px solid #87694f;border-radius:10px;background:#21152a;color:#f5ddb8;text-align:left}.soundscape-tracks button[aria-pressed=true]{border-color:#f2ce8d;background:linear-gradient(140deg,#663877,#26182f);box-shadow:inset 0 0 0 1px #e7bb7966}.soundscape-tracks strong,.soundscape-tracks small{display:block}.soundscape-tracks strong{font-size:13px;font-weight:normal;line-height:1.3}.soundscape-tracks small{font-size:10px;color:#c8afc9;margin-top:5px}.soundscape-controls{display:flex;align-items:center;gap:10px;margin-top:16px}.soundscape-controls button{border:1px solid #dfb87d;border-radius:30px;background:#6b3d7f;color:#fff1d7;padding:9px 13px;white-space:nowrap;font-size:12px}.soundscape-controls label,.soundscape-controls span{font-size:11px;color:#ddc3d9}.soundscape-controls input{width:100%;min-width:40px;accent-color:#d5ad78}.soundscape-note{font-size:11px;color:#c4b4c5;margin:12px 0 0;line-height:1.4}@media(max-width:750px){.soundscape-shell{top:62px;right:12px}.soundscape-toggle{padding:9px 12px;font-size:12px}.soundscape-panel{top:43px;max-height:65svh;padding:14px}}

/* V5kb: Seven matching opaque invitation covers and a distinct parchment charter. */
.tile.tile-artwork,.tile.tile-charter{isolation:isolate;background-color:#050305;background-position:center;background-repeat:no-repeat;background-size:cover;border:1px solid #b58a49;box-shadow:inset 0 0 0 2px #140b14,0 6px 22px #0008;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.tile.tile-artwork{background-image:url('assets/rotunda-cover.jpg')}
.tile.tile-charter{background-image:url('assets/charter-scroll.jpg');background-size:100% 100%;background-color:#a47b43}
.tile.tile-artwork::before,.tile.tile-charter::before{content:none}
.tile.tile-artwork::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 12%,#0004 45%,#0009 100%);pointer-events:none;z-index:0}
.tile.tile-artwork .number{font-family:Georgia,serif;font-size:clamp(30px,3vw,45px);font-weight:normal;line-height:1.15;min-width:2.3em;padding:8px 12px;border:2px double #d9b36d;border-radius:50%;background:radial-gradient(ellipse,#130b19ed,#220e29d9);color:#ffe3a1;text-shadow:0 2px 4px #000,0 0 12px #b5773a;box-shadow:0 0 0 3px #1a0928aa,0 0 18px #000c;position:relative;z-index:1}
.tile.tile-artwork .tile-label{font-size:10px;letter-spacing:.1em;text-shadow:0 2px 4px #000,0 0 8px #000;background:#0c0710c9;padding:5px 7px;border-radius:4px;color:#f6d99b}
.tile.tile-charter .number{font-family:Georgia,serif;font-size:clamp(30px,3vw,45px);color:#4b2712;border:2px double #8d572d;border-radius:50%;padding:7px 12px;background:#e3bf83c7;box-shadow:0 1px 8px #6b39185c;text-shadow:0 1px #fff3c7}
.tile.tile-charter .tile-label{color:#3d220f;background:#ebc78cba;padding:4px 6px;border-radius:4px;font-size:10px;font-weight:bold;letter-spacing:.07em;text-shadow:none}
.tile.tile-artwork:hover,.tile.tile-charter:hover{transform:translateY(-3px);border-color:#ffe0a3;box-shadow:0 0 28px #8d51a7aa}
@media(max-width:750px){.tile.tile-artwork .number,.tile.tile-charter .number{font-size:31px;padding:5px 10px}.tile.tile-artwork .tile-label,.tile.tile-charter .tile-label{font-size:9px}}

/* V5kc: editorial content for Artwork Details and Collection Charter */
.editorial-copy{max-width:660px;color:#eee3d8;line-height:1.72;font-size:clamp(14px,1.8vw,16px);padding:2px 0 16px}.editorial-copy h3{font-size:clamp(14px,1.9vw,17px);letter-spacing:.09em;color:#e9c88b;margin:24px 0 8px;line-height:1.4}.editorial-copy p{margin:10px 0 15px}.editorial-kicker{letter-spacing:.16em;text-transform:uppercase;color:#c4a0d5;font-size:12px}.editorial-quote{font-family:Georgia,serif;font-style:italic;color:#f1d9b1;font-size:clamp(16px,2.1vw,20px);line-height:1.6}.editorial-link{display:inline-block;border:1px solid #bd9357;border-radius:8px;color:#f9dfaa;padding:11px 16px;text-decoration:none;background:rgba(80,33,91,.36);font-weight:600}.editorial-link:hover,.editorial-link:focus-visible{background:rgba(115,49,132,.58);outline-offset:3px}.editorial-copy .fine{font-size:13px;opacity:.85}

/* V5kd: consistent optically centred close glyphs across all gallery dialogs. */
.icon-button{
  display:inline-grid;
  place-items:center;
  padding:0;
  line-height:1;
  font-size:0;
  text-align:center;
  vertical-align:middle;
  cursor:pointer;
}
.icon-button::before{
  content:"";
  display:block;
  width:14px;
  height:14px;
  background:linear-gradient(45deg,transparent calc(50% - 1px),#f5d2a3 calc(50% - 1px),#f5d2a3 calc(50% + 1px),transparent calc(50% + 1px)),linear-gradient(-45deg,transparent calc(50% - 1px),#f5d2a3 calc(50% - 1px),#f5d2a3 calc(50% + 1px),transparent calc(50% + 1px));
}
.panel-heading .icon-button::before{width:11px;height:11px}
.icon-button:focus-visible{outline:2px solid #f5d2a3;outline-offset:3px}
.soundscape-close{display:inline-grid;place-items:center;line-height:1;cursor:pointer}

/* V5ke: one CSS-rendered close glyph, no duplicate text node. */
.icon-button{position:relative;display:grid;place-items:center;line-height:0;overflow:hidden}
.icon-button::before{grid-area:1/1;flex:none;transform:none}