/* Immersive museum walkthrough */
.walk-overlay[hidden]{display:none!important}
body.walk-is-open{overflow:hidden}
.walk-cta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:22px 0 18px;padding:18px 22px;background:#151713;color:#f4f0e6}
.walk-cta button{background:#dbf19f;border:0;color:#182018;padding:14px 19px;font-weight:800;letter-spacing:.065em;font-size:11px}
.walk-cta span{font-size:12px;color:#c9c7c0}
.walk-overlay{position:fixed;inset:0;z-index:100;display:block;isolation:isolate;background:#151713;color:#f8f6f0;font-family:Arial,Helvetica,sans-serif}
.walk-overlay canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}
.walk-overlay button{touch-action:none}
.walk-topbar{position:absolute;top:0;left:0;right:0;z-index:2;padding:19px clamp(14px,3vw,42px);display:flex;align-items:center;justify-content:space-between;gap:18px;background:linear-gradient(180deg,rgba(15,16,15,.88),rgba(15,16,15,.06))}
.walk-identity{display:flex;flex-direction:column;gap:5px;min-width:0}
.walk-identity small,.walk-progress small{font-size:10px;letter-spacing:.19em;color:#cfe5ac}
.walk-identity strong{font-family:Georgia,serif;letter-spacing:.08em;font-size:clamp(16px,2vw,26px);font-weight:400}
.walk-close{flex-shrink:0;border:1px solid rgba(255,255,255,.45);background:#f7f5ed;color:#10100e;padding:12px 16px;font-size:11px;font-weight:700;letter-spacing:.06em}
.walk-guide{position:absolute;top:93px;left:clamp(14px,3vw,42px);max-width:340px;padding:11px 14px;background:rgba(15,16,15,.68);border-left:2px solid #cfe5ac;color:#f4f0e7;font-size:12px;line-height:1.5;pointer-events:none}
.walk-bottom{position:absolute;bottom:0;left:0;right:0;padding:20px clamp(14px,3vw,42px) max(22px,env(safe-area-inset-bottom));display:flex;justify-content:space-between;align-items:end;gap:24px;background:linear-gradient(0deg,rgba(13,13,13,.84),rgba(13,13,13,0));pointer-events:none}
.walk-progress{min-width:min(440px,40vw)}
.walk-progress strong{display:block;margin:0 0 11px;font-size:11px;letter-spacing:.085em;font-weight:600}
.walk-progress-track{height:3px;background:rgba(255,255,255,.25);width:100%;overflow:hidden}
.walk-progress-track span{display:block;width:0;height:100%;background:#d7ebae;transition:width .15s linear}
.walk-controls{pointer-events:auto;display:flex;gap:8px;align-items:center}
.walk-controls button{border:1px solid rgba(255,255,255,.32);width:54px;height:54px;border-radius:1px;background:rgba(18,19,17,.84);color:#f8f7ef;font-size:25px;transition:background .12s;user-select:none;-webkit-user-select:none}
.walk-controls button:active{background:#b7d98e;color:#151713}
.walk-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,calc(-50% + 70px));padding:8px 14px;background:rgba(248,246,239,.82);color:#232721;font-size:10px;font-weight:700;letter-spacing:.1em;pointer-events:none;white-space:nowrap;opacity:.8}
@media(max-width:700px){
  .walk-cta{flex-direction:column;align-items:stretch;padding:15px;margin:15px 0}
  .walk-cta button{width:100%;min-height:45px}
  .walk-cta span{font-size:11px;text-align:center}
  .walk-topbar{padding:14px 16px}
  .walk-identity small{font-size:8px}
  .walk-identity strong{font-size:15px}
  .walk-close{padding:10px;font-size:10px}
  .walk-guide{top:78px;left:14px;max-width:235px;font-size:10px}
  .walk-bottom{flex-direction:column;align-items:stretch;padding:16px 14px max(21px,env(safe-area-inset-bottom));gap:15px}
  .walk-progress{min-width:0;width:100%}
  .walk-progress strong{font-size:9px;margin-bottom:7px}
  .walk-controls{justify-content:center}
  .walk-controls button{width:min(19vw,64px);height:54px}
  .walk-hint{top:46%;font-size:8px;transform:translate(-50%,55px)}
}

/* Museum-first experience */
.walk-topbar{padding:22px clamp(16px,3vw,46px);background:linear-gradient(180deg,rgba(18,21,18,.82) 0%,rgba(18,21,18,0) 100%);gap:12px}
.walk-identity strong{font-family:Georgia,serif;font-size:clamp(19px,2vw,28px);letter-spacing:.055em;font-weight:400;white-space:nowrap}
.walk-identity-mark{vertical-align:super;font:700 7px Arial,sans-serif;letter-spacing:.08em;margin-left:5px;opacity:.65}
.walk-actions{display:flex;align-items:center;gap:8px}
.walk-exhibit,.walk-close{white-space:nowrap;min-height:42px;font-size:10px;font-weight:800;letter-spacing:.075em;border-radius:30px;padding:12px 18px;box-shadow:0 9px 24px rgba(0,0,0,.16)}
.walk-exhibit{background:#d6ecaf;color:#20291f;border:1px solid #d6ecaf}
.walk-close{background:rgba(255,255,255,.92);color:#172017;border:1px solid rgba(255,255,255,.65)}
.walk-guide{top:114px;max-width:360px;border-left:0;border-radius:7px;padding:14px 18px;color:#f8f7ee;background:rgba(19,26,20,.67);backdrop-filter:blur(12px);box-shadow:0 12px 36px rgba(0,0,0,.08)}
.walk-progress strong{margin:7px 0 11px;font-weight:700}
.walk-progress small{display:block}
.walk-legend{display:flex;align-items:center;gap:7px;font-size:9px;color:rgba(255,255,255,.8);margin-top:10px;letter-spacing:.075em}
.walk-legend i{height:9px;width:9px;border:1px solid #d6ecaf;background:#e9eee1;display:inline-block;transform:rotate(45deg)}
.walk-hint{top:auto;bottom:138px;left:50%;transform:translateX(-50%);background:rgba(248,247,243,.88);border:1px solid rgba(140,154,117,.3);border-radius:24px;padding:11px 16px;color:#37442f;box-shadow:0 4px 20px rgba(0,0,0,.08);font-size:10px}
.walk-controls button{border-radius:50%;background:rgba(24,28,23,.78);backdrop-filter:blur(10px);border-color:rgba(255,255,255,.27);box-shadow:0 6px 22px rgba(0,0,0,.18)}
.walk-controls button:active{background:#d6ecaf}
#exhibit{max-height:calc(100dvh - 28px);overflow-y:auto;overscroll-behavior:contain;border-radius:12px}
#form>h2{margin-bottom:10px}
.form-intro{max-width:670px;color:#696860;font:400 13px/1.6 Arial,sans-serif;margin:0 0 26px}
#form .checkout .btn{font-size:9px;line-height:1.2;padding:13px 15px;max-width:260px}
.sketch-area{border:1px solid rgba(17,17,15,.14);margin:12px 0 0;padding:10px 12px;background:rgba(255,255,255,.45)}
.sketch-area summary{list-style:none;font-size:10px;font-weight:800;letter-spacing:.08em;display:flex;justify-content:space-between;cursor:pointer}
.sketch-area summary::-webkit-details-marker{display:none}
.sketch-area summary span{font-size:18px}
#sketch{display:block;width:100%;height:auto;aspect-ratio:540/280;touch-action:none;border:1px solid #c5c4b9;margin-top:14px;background:#faf8f3;cursor:crosshair}
#clearSketch{border:0;background:transparent;text-decoration:underline;font-size:10px;margin-top:10px;cursor:pointer}
@media(max-width:700px){
  .walk-topbar{align-items:start;padding:17px 14px}
  .walk-identity small{font-size:7px;letter-spacing:.11em}
  .walk-identity strong{font-size:clamp(14px,4vw,19px)}
  .walk-actions{gap:5px}
  .walk-exhibit,.walk-close{font-size:9px;padding:9px 11px;min-height:38px}
  .walk-guide{top:80px;left:14px;right:14px;max-width:380px;font-size:11px;line-height:1.45;padding:10px 12px}
  .walk-hint{font-size:8px;bottom:160px;max-width:calc(100% - 28px);text-align:center;white-space:normal}
  .walk-progress{max-width:none}
  .walk-progress strong{font-size:9px}
  .walk-legend{font-size:8px}
  .walk-bottom{gap:11px}
  .walk-controls button{width:54px;height:54px}
  #form>h2{font-size:clamp(36px,11vw,54px)}
  .form-intro{font-size:12px}
  #form .checkout{gap:12px;align-items:center}
  #form .checkout .btn{max-width:190px}
}
@media(max-width:390px){
  .walk-identity strong{font-size:13px}
  .walk-exhibit,.walk-close{font-size:8px;padding:8px}
}
@media(prefers-reduced-motion:reduce){.walk-progress-track span,.walk-controls button{transition:none}}

/* Compact, transparent, mobile-first museum reservation */
.reserve-dialog{width:min(660px,calc(100vw - 28px));max-height:92dvh;border:1px solid #ccc9c0;border-radius:17px;overflow:hidden;box-shadow:0 24px 90px rgba(0,0,0,.27)}
#exhibit.reserve-dialog{max-height:92dvh;overflow:hidden}
.reserve-dialog #form{padding:clamp(20px,3vw,32px);max-height:92dvh;overflow-y:auto;overscroll-behavior:contain}
.reserve-dialog .x{position:absolute;right:15px;top:15px;border:1px solid #dad6cd;background:#f7f5ef;border-radius:50%;width:37px;height:37px;font-size:22px;display:grid;place-items:center;z-index:5}
.reserve-header{padding-right:38px}
.reserve-header .eyebrow{color:#63745b;font-size:9px}
.reserve-header h2{font:700 clamp(34px,5.2vw,48px)/.97 Arial,sans-serif;letter-spacing:-.065em;margin:12px 0 22px}
.reserve-header h2 em{font:italic 400 1.02em Georgia,serif;letter-spacing:-.05em}
.reserve-stage[hidden]{display:none!important}
.reserve-choice{display:grid;grid-template-columns:minmax(160px,40%) 1fr;border:1px solid #d8d5cc;overflow:hidden;border-radius:12px;background:#faf9f5;min-height:222px}
.reserve-frame-area{background:linear-gradient(145deg,#dfdcd1,#f1eee7);padding:18px;display:grid;place-items:center;min-width:0}
.reserve-art-preview{width:min(100%,178px);max-height:186px;aspect-ratio:var(--frame-ratio,1.5);background:#fafaf6;box-shadow:0 5px 14px rgba(0,0,0,.13),inset 0 0 0 1px #ddd6c9;border:8px solid #d6cabc;display:grid;place-items:center;text-align:center;transition:all .2s}
.reserve-art-preview span{font:700 clamp(10px,1.6vw,13px)/1.3 Arial,sans-serif;color:#8f9184;letter-spacing:.12em}
.reserve-art-preview.is-floor{aspect-ratio:1;transform:perspective(340px) rotateX(53deg);background:#d8dfd3;border:9px solid #c2c6b9;box-shadow:0 28px 20px rgba(55,58,51,.2)}
.reserve-art-preview.is-floor span{color:#657764}
.reserve-choice-detail{padding:22px 24px;display:flex;flex-direction:column;align-items:start;gap:7px;min-width:0}
.reserve-choice-detail>.eyebrow{font-size:9px;color:#75736a}
.reserve-choice-detail>strong{font:400 clamp(24px,3vw,35px)/1 Georgia,serif;color:#181a18;margin-top:5px}
.reserve-choice-detail>span:not(.eyebrow){font:500 12px Arial,sans-serif;color:#706d67}
.reserve-price-block{margin-top:auto;padding-top:16px;display:flex;flex-direction:column;gap:3px}
.reserve-price-block small{font:700 9px Arial,sans-serif;letter-spacing:.14em;color:#7a776e}
.reserve-price-block b{font:700 clamp(31px,4vw,44px)/1 Arial,sans-serif;letter-spacing:-.05em;color:#161916}
.reserve-explain{font:400 12px/1.65 Arial,sans-serif;color:#66655f;margin:16px 0 18px}
.reserve-primary{display:flex;align-items:center;justify-content:space-between;width:100%;padding:17px 20px;border-radius:7px;font-size:11px;min-height:53px}
.reserve-primary span{font-size:22px}
.reserve-stage[data-stage="2"] h3{font:700 27px/.98 Arial,sans-serif;letter-spacing:-.04em;margin:0 0 9px}
.reserve-subtext{font:400 12px/1.55 Arial,sans-serif;color:#77736b;margin:0 0 16px}
.reserve-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.reserve-fields>label{margin-top:8px;padding:9px 0 0;font-size:9px;letter-spacing:.09em}
.reserve-fields>label:nth-child(n+3){grid-column:span 2}
.reserve-fields input,.reserve-fields textarea,.reserve-fields select{padding:11px 0;font-size:14px;letter-spacing:0;border-color:#d5d2c9}
.reserve-fields textarea{min-height:74px}
.reserve-upload{position:relative;min-height:54px;display:flex!important;align-items:center;justify-content:center;background:#edf1e6;color:#32422e!important;border:1px dashed #9caf92!important;border-radius:8px!important;font-size:11px!important;font-weight:700;letter-spacing:.04em!important;cursor:pointer;margin:12px 0 4px!important;padding:12px!important}
.reserve-upload input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.reserve-fields .sketch-area{grid-column:1/-1;margin:8px 0;padding:12px;border:1px solid #d4d2c8;border-radius:8px}
.reserve-fields .sketch-area summary{font-size:10px}
.reserve-advanced{grid-column:1/-1;margin:6px 0;padding:11px 0;border-bottom:1px solid #ddd9cf}
.reserve-advanced summary{font:500 11px Arial,sans-serif;color:#77736b;cursor:pointer}
.reserve-advanced label{font-size:9px;padding-top:5px}
.reserve-small-preview{display:flex;align-items:center;gap:11px;min-height:52px;overflow:hidden;padding:9px 12px;background:#f6f4ed;border:1px solid #ddd9cf;border-radius:7px;margin:14px 0;background-size:contain;background-repeat:no-repeat;background-position:right center}
.reserve-small-preview small{font:700 8px Arial,sans-serif;color:#77736b;letter-spacing:.1em}
.reserve-small-preview strong{font:400 15px Georgia,serif;text-transform:uppercase;max-width:70%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.reserve-submit{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:12px 0;border-top:1px solid #d7d4ca;background:#f1efe7;position:sticky;bottom:0;z-index:3}
.reserve-back{border:0;background:transparent;font-size:10px;font-weight:700;padding:8px 0;color:#5b6056}
.reserve-pay{display:flex;flex-direction:column;align-items:end;gap:2px}
.reserve-pay small{font-size:8px;color:#76746f}
.reserve-pay strong{font-size:20px;letter-spacing:-.04em}
.reserve-submit .btn{font-size:10px!important;min-width:170px;padding:14px 12px!important;border-radius:6px}
.reserve-disclaimer{border-top:1px solid #d7d4cc;padding-top:12px;margin:15px 0 0;font:400 10px/1.5 Arial,sans-serif;color:#77756d}
.reserve-disclaimer strong{color:#444b3c}
@media(max-width:700px){
  #exhibit.reserve-dialog{width:calc(100vw - 20px);max-height:calc(100dvh - 30px);border-radius:14px}
  .reserve-dialog #form{padding:19px 18px;max-height:calc(100dvh - 30px)}
  .reserve-header h2{font-size:clamp(34px,10vw,43px);margin:10px 0 17px}
  .reserve-choice{grid-template-columns:38% 1fr;min-height:185px}
  .reserve-frame-area{padding:12px}
  .reserve-art-preview{border-width:6px;max-height:148px}
  .reserve-art-preview span{font-size:10px}
  .reserve-choice-detail{padding:15px 13px;gap:6px}
  .reserve-choice-detail>strong{font-size:clamp(19px,5.5vw,25px)}
  .reserve-choice-detail>span:not(.eyebrow){font-size:11px}
  .reserve-price-block{padding-top:8px}
  .reserve-price-block small{font-size:8px}
  .reserve-price-block b{font-size:clamp(24px,7vw,34px)}
  .reserve-explain{font-size:11px;margin:13px 0}
  .reserve-primary{font-size:10px;padding:13px 15px;min-height:49px}
  .reserve-fields{grid-template-columns:1fr;gap:0}
  .reserve-fields>label:nth-child(n){grid-column:1}
  .reserve-fields input,.reserve-fields textarea,.reserve-fields select{font-size:16px}
  .reserve-small-preview{min-height:46px}
  .reserve-submit{gap:9px;grid-template-columns:auto 1fr auto;padding:10px 0}
  .reserve-pay strong{font-size:17px}
  .reserve-submit .btn{min-width:0;font-size:9px!important;padding:12px 9px!important}
  .reserve-back{font-size:9px}
  .reserve-disclaimer{font-size:9px}
}

#exhibit.reserve-dialog{width:min(760px,calc(100vw - 28px));}

#exhibit.is-step-two .reserve-header h2{display:none}
#exhibit.is-step-two .reserve-header{margin-bottom:15px}


/* Premium compact installation configurator (floor leases are 1 month). */
.floor-studio{
 width:min(980px,calc(100vw - 22px));max-height:92dvh;
 border:1px solid #d0d0c5;border-radius:16px;background:#f5f4ee;color:#1c201d;
 padding:0;overflow-y:auto;overscroll-behavior:contain;box-shadow:0 28px 85px rgba(0,0,0,.32);
 font:normal 13px Arial,Helvetica,sans-serif;
}
.floor-studio[open]{display:block}
.floor-header{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;padding:28px 30px 12px}
.floor-header h2{font-size:clamp(29px,4.1vw,48px);font-weight:800;line-height:.93;letter-spacing:-.06em;margin:13px 0 6px}
.floor-header h2 em{font:italic 400 1em Georgia,serif}
.floor-header .eyebrow{font-size:9px;color:#5c6c57}
.floor-close{border:1px solid #d5d5ca;border-radius:50%;background:#fff;font-size:22px;width:38px;height:38px;flex:0 0 38px}
.floor-price{margin:0 30px 23px;padding:14px 18px;background:#e6ecd9;border:1px solid #d2ddc9;border-radius:9px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.floor-price div{display:flex;align-items:baseline;gap:7px;flex-shrink:0}
.floor-price b{font-size:29px;font-weight:800;letter-spacing:-.055em}
.floor-price span{font-weight:800;font-size:11px}
.floor-price small{max-width:320px;color:#596653;font-size:10px;line-height:1.5}
.floor-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:0 30px 30px}
.floor-editor,.floor-preview-side{min-width:0}
.floor-step{display:block;color:#656f60;font-size:9px;letter-spacing:.12em;font-weight:800;margin-bottom:13px}
.floor-types{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin-bottom:25px}
.floor-types button{background:#fefdf8;border:1px solid #d6d8d0;border-radius:8px;min-height:94px;padding:10px 5px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;color:#282f27;transition:.13s}
.floor-types button.active{border:2px solid #4d6746;background:#eaf0e4}
.floor-types button span{font-size:24px;line-height:1;color:#607b58}
.floor-types button strong{font-size:9px;letter-spacing:.035em}
.floor-types button small{font-size:8px;color:#85857e}
.floor-fields{display:grid;grid-template-columns:1fr 1fr;gap:2px 12px}
.floor-fields .full{grid-column:1/-1}
.floor-fields label{display:block;border:0;padding:0;margin:0 0 13px;color:#596158;letter-spacing:.045em;font-size:10px;font-weight:700}
.floor-fields input,.floor-fields select{background:#fff;border:1px solid #d1d5ce;border-radius:6px;margin-top:7px;padding:12px;width:100%;font-size:14px;color:#212621;outline:none}
.floor-fields input:focus,.floor-fields select:focus{border-color:#507b49}
.floor-fields [hidden]{display:none!important}
.floor-upload{position:relative;border:1px dashed #93a58d!important;border-radius:7px!important;padding:15px!important;background:#eaf0e4;text-align:center;cursor:pointer;color:#42613d!important;font-size:11px!important}
.floor-upload input{position:absolute;inset:0;opacity:0;margin:0;padding:0;cursor:pointer}
.floor-error{font-size:11px;color:#9b3430;font-weight:700;line-height:1.5;min-height:18px}
#floorPreviewCanvas{display:block;width:100%;height:auto;border-radius:8px;border:1px solid #dadecf;background:#f6f4ed;touch-action:none;cursor:grab}
#floorPreviewCanvas:active{cursor:grabbing}
.floor-preview-notes{display:flex;justify-content:space-between;gap:10px;font-size:9px;font-weight:700;letter-spacing:.12em;color:#62725b;margin:11px 0}
.floor-preview-side p{font-size:11px;line-height:1.55;color:#7b8076;margin:10px 0 14px}
.floor-publish{display:block;width:100%;border-radius:7px;min-height:51px;font-size:10px;line-height:1.3}
.floor-disclaimer{display:block;margin:12px 0 0;font-size:10px;line-height:1.55;color:#6c6d64}
@media(max-width:760px){
 .floor-studio{width:calc(100vw - 18px);max-height:calc(100dvh - 28px);border-radius:14px}
 .floor-header{padding:20px 18px 7px}
 .floor-header h2{font-size:clamp(31px,8vw,39px)}
 .floor-price{margin:0 18px 18px;padding:11px 13px;align-items:flex-start;flex-direction:column;gap:4px}
 .floor-price b{font-size:27px}
 .floor-price small{font-size:9px}
 .floor-layout{grid-template-columns:1fr;padding:0 18px 20px;gap:18px}
 .floor-types{grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin-bottom:21px}
 .floor-types button{min-height:85px;padding:8px 4px}
 .floor-types button strong{font-size:8px}
 .floor-types button small{font-size:8px}
 .floor-preview-side{order:1}
 .floor-editor{order:0}
 .floor-step{font-size:9px}
 #floorPreviewCanvas{max-height:320px;object-fit:contain}
 .floor-fields input,.floor-fields select{font-size:16px}
 .floor-studio .floor-price{position:relative}
}


/* Mobile journey: select installation > see it > customize > preview/confirm. */
@media(max-width:760px){
 .floor-layout{display:flex;flex-direction:column;gap:0}
 .floor-editor,.floor-preview-side{display:contents}
 .floor-editor>.floor-step:first-child{order:1}
 .floor-types{order:2}
 .floor-preview-side>.floor-step{order:3}
 #floorPreviewCanvas{order:4}
 .floor-preview-notes{order:5;margin-bottom:16px}
 .floor-editor>.floor-step:nth-of-type(2){order:6;margin-top:5px}
 .floor-fields{order:7}
 .floor-error{order:8}
 .floor-preview-side>p{order:9;margin:8px 0 13px}
 .floor-publish{order:10}
 .floor-disclaimer{order:11}
}


/* V2 — premium suspended ceiling inventory and responsive sales presentation. */
.ceiling-offers{border-top:1px solid rgba(17,17,15,.23);margin-top:46px;padding:43px 0 10px}
.ceiling-offers-head{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:end}
.ceiling-offers-head .eyebrow{grid-column:1/-1;display:block;margin-bottom:2px}
.ceiling-offers-head h3{font:800 clamp(40px,5.7vw,88px)/.85 Arial,Helvetica,sans-serif;letter-spacing:-.07em;margin:0;color:#20231f}
.ceiling-offers-head h3 em{font-family:Georgia,serif;font-weight:400}
.ceiling-offers-head p{font:400 13px/1.8 Arial,sans-serif;color:#696a62;max-width:420px;margin:0 0 3px}
.ceiling-offers-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:36px;border-top:1px solid rgba(17,17,15,.21);border-left:1px solid rgba(17,17,15,.21)}
.ceiling-offers-grid button{background:linear-gradient(155deg,#f9f8f2,#e7e9df);color:#252923;border:0;border-bottom:1px solid rgba(17,17,15,.21);border-right:1px solid rgba(17,17,15,.21);min-height:280px;padding:22px;text-align:left;display:flex;align-items:flex-start;flex-direction:column;transition:background .18s,transform .18s}
.ceiling-offers-grid button:hover{background:#f3f8e8;transform:translateY(-3px)}
.ceiling-icon{font-size:31px;color:#627b62;margin-bottom:15px}
.ceiling-offers-grid small{font:700 9px Arial,sans-serif;letter-spacing:.17em;color:#767970;margin-bottom:7px}
.ceiling-offers-grid b{font:800 clamp(17px,2vw,25px) Arial,sans-serif;letter-spacing:-.035em}
.ceiling-offers-grid strong{font:400 clamp(34px,3.1vw,54px) Georgia,serif;margin-top:26px}
.ceiling-offers-grid button>span:not(.ceiling-icon){font:500 10px Arial,sans-serif;letter-spacing:.05em;color:#6c7168;margin-top:5px}
.ceiling-offers-grid i{font:800 9px Arial,sans-serif;font-style:normal;letter-spacing:.13em;margin-top:auto;padding-top:27px}
.ceiling-disclaimer{font:400 10px/1.55 Arial,sans-serif;color:#71736d;margin:15px 0 0}
.reserve-art-preview.is-ceiling{position:relative;transform:perspective(450px) rotateX(-18deg);border:7px solid #e0e8d5;box-shadow:0 0 17px rgba(183,224,144,.5),0 18px 20px rgba(36,56,35,.18);background:#fbfff4}
.reserve-art-preview.is-ceiling:before,.reserve-art-preview.is-ceiling:after{content:"";position:absolute;width:1px;height:22px;background:#8c9983;top:-28px}
.reserve-art-preview.is-ceiling:before{left:12%}
.reserve-art-preview.is-ceiling:after{right:12%}
@media(max-width:900px){.ceiling-offers-head{grid-template-columns:1fr}.ceiling-offers-head p{max-width:640px}}
@media(max-width:650px){.ceiling-offers{padding-top:28px;margin-top:26px}.ceiling-offers-grid{grid-template-columns:1fr}.ceiling-offers-grid button{min-height:195px;padding:19px}.ceiling-icon{font-size:23px;margin-bottom:7px}.ceiling-offers-grid strong{margin-top:14px;font-size:38px}.ceiling-offers-head h3{font-size:50px}.ceiling-offers-head p{font-size:12px}}

/* Three.js real WebGL museum — architectural immersive layer */
.walk-overlay canvas{background:#f5f4ef}
.engine-status{position:absolute;top:82px;right:clamp(14px,3vw,42px);z-index:3;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px;pointer-events:none}
.engine-chip{display:inline-flex;align-items:center;border:1px solid rgba(197,202,182,.7);border-radius:40px;padding:9px 12px;background:rgba(255,255,251,.82);backdrop-filter:blur(12px);box-shadow:0 10px 28px rgba(29,40,30,.07);font:700 9px Arial,sans-serif;letter-spacing:.14em;color:#394b40}
.engine-chip:first-child{color:#315a38;border-color:rgba(119,156,118,.32)}
.engine-location{color:#626d60;font-size:8px}
.walk-identity strong{letter-spacing:.092em}
.walk-guide{max-width:365px;border:1px solid rgba(255,255,255,.7);background:rgba(249,248,241,.88);color:#313c33;box-shadow:0 15px 48px rgba(30,39,30,.13)}
.walk-hint{background:rgba(250,249,243,.88);box-shadow:0 12px 34px rgba(0,0,0,.1)}
@media(max-width:760px){
  .engine-status{top:77px;right:14px;max-width:42%;gap:5px}
  .engine-chip{padding:7px 9px;font-size:7px}
  .engine-location{display:none}
  .walk-guide{max-width:49%;font-size:9px;top:76px;left:12px;right:auto;padding:10px 11px}
  .walk-hint{max-width:calc(100% - 36px);white-space:normal}
}
@media(prefers-reduced-motion:reduce){.engine-chip{transition:none}}

/* Real uploaded 3D model studio — GLB, GLTF and STL. */
.floor-types{grid-template-columns:repeat(5,minmax(0,1fr))}
.floor-types button[data-floor-type="model"]{background:#e9ede3}
.floor-types button[data-floor-type="model"].active{background:#d6e7d1;border-color:#578051}
.model-file-help{color:#657563;font:400 11px/1.55 Arial,sans-serif;margin:-6px 0 14px!important;letter-spacing:0!important}
.model-preview-shell{position:relative;width:100%;aspect-ratio:720/500;overflow:hidden;border:1px solid #dadecf;border-radius:9px;background:#f5f4ee}
#floorPreviewCanvas,#floorModelCanvas{width:100%;height:100%;display:block;border:0!important;border-radius:0;touch-action:none}
#floorPreviewCanvas[hidden],#floorModelCanvas[hidden]{display:none!important}
#floorModelCanvas{cursor:grab}
#floorModelCanvas:active{cursor:grabbing}
.floor-model-state{color:#516d50;font:700 11px/1.5 Arial,sans-serif;letter-spacing:.02em;margin-top:8px}
@media(max-width:720px){.floor-types{grid-template-columns:repeat(5,minmax(0,1fr));gap:4px}.floor-types button{min-height:80px;padding:7px 3px}.floor-types button strong{font-size:7px}.floor-types button small{font-size:7px}.floor-types button span{font-size:20px}}
@media(max-width:450px){.floor-types{grid-template-columns:repeat(3,minmax(0,1fr))}}

/* Interactive viewer when opening an exhibited 3D model. */
.model-detail-media{display:block!important;position:relative;overflow:hidden;background:#f4f3ee!important}
.model-detail-media .piece-model-viewer{width:100%;height:100%;min-height:350px;display:block;touch-action:none;cursor:grab}
.model-detail-media .piece-model-viewer:active{cursor:grabbing}

/* White celestial ceiling: premium slots are deliberately hidden until walls are full. */
.ceiling-unlock-state{margin:28px 0 0;padding:14px 18px;border:1px solid rgba(92,101,85,.28);border-left:3px solid #a1b59b;background:rgba(255,255,255,.47);color:#536150;font:700 10px/1.6 Arial,sans-serif;letter-spacing:.09em}
.ceiling-offers-grid button:disabled{cursor:not-allowed;filter:saturate(.5);opacity:.66;transform:none!important;background:#edeee8}
.ceiling-offers-grid button:disabled i{color:#747d71}
.ceiling-offers-grid button:disabled:hover{background:#edeee8}
.ceiling-offers-grid button:focus-visible{outline:3px solid #76876f;outline-offset:-3px}

/* V4 — restrained museum-grade overlay: limestone, aged brass and frosted glass. */
.walk-topbar{
  background:linear-gradient(180deg,rgba(18,19,18,.83),rgba(18,19,18,.3) 64%,rgba(18,19,18,0));
  padding-top:clamp(14px,2.4vw,27px);
}
.walk-identity strong{font-family:Georgia,"Times New Roman",serif;font-weight:400;letter-spacing:.105em;text-shadow:0 2px 17px rgba(0,0,0,.2)}
.walk-identity small{color:#e8dac0;letter-spacing:.26em}
.walk-exhibit{background:#d9c7a1;color:#27231c;border-color:#d9c7a1}
.walk-exhibit:hover{background:#f4e5c8;border-color:#f4e5c8}
.walk-close{background:rgba(253,251,247,.90);border-color:rgba(240,235,223,.75);color:#333128}
.walk-guide{max-width:340px;background:rgba(252,251,246,.88)!important;color:#525147!important;border:1px solid rgba(210,198,171,.68)!important;border-left:3px solid #bda77f!important;
  font-family:Georgia,"Times New Roman",serif;font-size:13px;line-height:1.55;letter-spacing:.01em;box-shadow:0 16px 42px rgba(24,21,15,.13)!important}
.walk-bottom{background:linear-gradient(0deg,rgba(24,23,20,.8),rgba(24,23,20,0))}
.walk-progress small{color:#e6d5b8}
.walk-progress-track span{background:linear-gradient(90deg,#b1a083,#ead9b5)}
.walk-legend i{background:#eee8d6;border-color:#a99773}
.walk-controls button{background:rgba(29,30,27,.69);border-color:rgba(234,225,204,.44)}
.walk-controls button:active{background:#e1d3b2;color:#2b2720}
.walk-hint{border-color:rgba(198,177,139,.38);background:rgba(255,254,249,.9);color:#4d493c;letter-spacing:.17em}
.engine-status .engine-chip{color:#635e4c;border-color:rgba(192,180,153,.60);background:rgba(251,250,246,.86)}
.engine-status .engine-chip:first-child{color:#66553a;border-color:rgba(187,163,115,.43)}
@media(max-width:760px){
  .walk-identity small{letter-spacing:.11em}
  .walk-guide{font-size:10px;max-width:52%;padding:9px 11px}
}