:root{
  --app-font:"M PLUS 1","Hiragino Sans","Yu Gothic",sans-serif;
  --app-font-weight:400;
  --app-font-synthesis:weight;
  --bg:#0b0c0e;
  --panel:#111316;
  --panel-2:#171a1e;
  --panel-3:#1e2227;
  --text:#f5f6f7;
  --muted:#8d949d;
  --muted-2:#b7bcc3;
  --line:#262a30;
  --accent:#4ea3ff;
  --accent-strong:#76b8ff;
  --price:#ffd66b;
  --danger:#ff7777;
  --success:#8ce2ad;
  --radius:6px;
  --sidebar:190px;
  --topbar:62px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:var(--app-font);font-weight:var(--app-font-weight);font-synthesis:var(--app-font-synthesis);font-size:14px;line-height:1.45}
body{overflow-x:hidden}
button,input,select{font:inherit}
button,a,input,select{font-size:13px}
button{color:inherit}
a{color:inherit;text-decoration:none}
button{cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[hidden]{display:none!important}

.app-shell{min-height:100vh;display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr)}
.sidebar{position:sticky;top:0;height:100vh;background:#0d0f11;padding:16px 14px 14px;border-right:1px solid #181b1f;display:flex;flex-direction:column;z-index:20}
.brand{height:38px;display:flex;align-items:center;gap:9px;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:5px;display:grid;place-items:center;background:var(--text);color:#0b0c0e;font-size:12px;letter-spacing:-.3px}
.brand-name{font-size:14px;letter-spacing:.4px}
.side-nav{display:flex;flex-direction:column;gap:2px;margin-top:28px}
.side-link{border:0;background:transparent;display:flex;align-items:center;justify-content:space-between;text-align:left;padding:10px 9px;border-radius:5px;color:var(--muted-2);font-size:13px}
.side-link:hover{background:#15181c;color:var(--text)}
.side-link.is-active{background:#1b1f24;color:#fff}
.side-link .count{font-size:12px;color:#6f767f}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:8px;color:#666d75;font-size:12px;line-height:1.4}
.text-action{padding:0;border:0;background:transparent;text-align:left;color:#9097a0;font-size:12px}
.text-action:hover{color:#fff}

.main-stage{min-width:0}
.topbar{height:var(--topbar);position:sticky;top:0;z-index:18;background:rgba(11,12,14,.96);display:flex;align-items:center;gap:18px;padding:0 22px;border-bottom:1px solid #17191c;backdrop-filter:saturate(120%) blur(10px)}
.search-wrap{position:relative;max-width:620px;flex:1;min-width:220px}
.search-wrap input{width:100%;height:38px;border:0;border-radius:5px;background:#191c20;color:#fff;padding:0 38px 0 38px;font-size:13px}
.search-wrap input::placeholder{color:#6d747d}
.search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);font-size:21px;color:#777e87;line-height:1}
.search-clear{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:28px;height:28px;border:0;background:transparent;color:#787f88;font-size:18px}
.top-actions{display:flex;align-items:center;gap:7px;margin-left:auto}
.quiet-button,.primary-button,.selection-actions button,.panel-tools button,.dialog-actions button{height:34px;border-radius:5px;padding:0 13px;border:1px solid #2a2f35;background:#171a1e;color:#e9ebed;font-size:13px;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;line-height:1;vertical-align:middle}
.quiet-button:hover,.selection-actions button:hover,.panel-tools button:hover,.dialog-actions button:hover{background:#20242a;border-color:#343a42}
.primary-button{background:#f4f5f6;border-color:#f4f5f6;color:#0d0f12}
.primary-button:hover{background:#fff;border-color:#fff}

.content-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:22px 22px 16px}
.eyebrow{margin:0 0 5px;color:#6f7780;font-size:12px;letter-spacing:.4px}
h1,h2,p{overflow-wrap:anywhere}
h1{font-size:25px;line-height:1.25;margin:0;letter-spacing:-.6px}
h2{font-size:20px;margin:0;line-height:1.3}
.view-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.sort-control{display:flex;align-items:center;gap:8px;color:#7e858d;font-size:12px}
.sort-control select{height:34px;min-width:128px;background:#14171a;color:#e5e7e9;border:1px solid #24292f;border-radius:5px;padding:0 28px 0 10px;font-size:12px}
.segmented{display:flex;align-items:center;background:#14171a;border-radius:5px;overflow:hidden}
.segmented button{height:34px;min-width:43px;padding:0 9px;border:0;border-right:1px solid #24282e;background:transparent;color:#7f8790;font-size:12px}
.segmented button:last-child{border-right:0}
.segmented button:hover{color:#fff;background:#1c2025}
.segmented button.is-active{background:#2a2f36;color:#fff}

.selection-bar{position:sticky;top:var(--topbar);z-index:16;margin:0 22px 12px;background:#1b1f24;min-height:48px;border-radius:5px;padding:8px 10px 8px 13px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.selection-bar>div:first-child{display:flex;align-items:center;gap:12px;min-width:0}
.selection-bar strong{font-size:13px}
.selection-bar span{font-size:12px;color:#7f8790;white-space:nowrap}
.selection-actions{display:flex;gap:6px}
.selection-actions button{height:31px;background:#20242a}
.selection-actions .danger-text{color:var(--danger)}

.library-area{padding:0 22px 28px;min-height:calc(100vh - 140px);outline:none}
.grid-view{display:grid;gap:18px 12px;align-items:start}
.grid-view.view-4{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px 14px}
.grid-view.view-6{grid-template-columns:repeat(6,minmax(0,1fr))}
.grid-view.view-8{grid-template-columns:repeat(8,minmax(0,1fr));gap:16px 9px}
.media-card{min-width:0;position:relative;user-select:none}
.media-thumb{position:relative;width:100%;aspect-ratio:16/10;background:#15181b;border-radius:var(--radius);overflow:hidden;isolation:isolate}
.media-thumb img,.media-thumb canvas,.folder-mosaic img{width:100%;height:100%;object-fit:cover;display:block}
.media-thumb::after{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.035);border-radius:inherit;pointer-events:none}
.media-card:hover .media-thumb{filter:brightness(1.06)}
.media-card.is-selected .media-thumb{outline:2px solid var(--accent);outline-offset:2px}
.media-card.is-selected .media-title{color:#fff}
.media-info{padding-top:8px;min-width:0}
.media-title{font-size:14px;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#f1f2f3}
.media-meta{display:flex;align-items:center;gap:7px;margin-top:4px;min-width:0;color:#737b84;font-size:12px;line-height:1.35}
.media-meta span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.media-price{margin-top:4px;color:var(--price);font-size:13px;letter-spacing:.1px}
.view-4 .media-title{font-size:15px}.view-4 .media-price{font-size:14px}.view-4 .media-meta{font-size:12px}
.view-8 .media-title{font-size:12px}.view-8 .media-price{font-size:12px}.view-8 .media-meta{font-size:12px}
.card-check{position:absolute;left:7px;top:7px;width:24px;height:24px;border-radius:4px;border:1px solid rgba(255,255,255,.35);background:rgba(8,9,11,.72);display:grid;place-items:center;z-index:5;opacity:0;transition:opacity .12s}
.media-card:hover .card-check,.media-card.is-selected .card-check{opacity:1}
.card-check::before{content:"";width:10px;height:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg) translate(1px,-1px);opacity:0}
.media-card.is-selected .card-check{background:var(--accent);border-color:var(--accent)}
.media-card.is-selected .card-check::before{opacity:1}
.card-more{position:absolute;right:7px;top:7px;z-index:5;width:29px;height:26px;border-radius:4px;border:0;background:rgba(8,9,11,.72);color:#fff;opacity:0;font-size:17px;line-height:1}
.media-card:hover .card-more{opacity:1}
.type-chip{position:absolute;left:7px;bottom:7px;background:rgba(6,7,9,.78);color:#e8eaec;padding:4px 6px;border-radius:4px;font-size:12px;line-height:1;z-index:4}
.play-mark{position:absolute;right:7px;bottom:7px;width:26px;height:26px;border-radius:50%;background:rgba(0,0,0,.68);display:grid;place-items:center;font-size:12px;z-index:4}
.folder-mosaic{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;background:#22262b}
.folder-mosaic.count-1{grid-template-columns:1fr;grid-template-rows:1fr}
.folder-mosaic.count-2{grid-template-columns:1fr 1fr;grid-template-rows:1fr}
.folder-mosaic.count-3{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);grid-template-rows:1fr 1fr}
.folder-mosaic.count-3 .folder-cell:first-child{grid-row:1 / span 2}
.folder-mosaic.count-4{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}
.folder-cell{position:relative;background:#22262b;overflow:hidden;display:grid;place-items:center;color:#606872;font-size:15px}
.folder-cell img{width:100%;height:100%;object-fit:cover}
.folder-cell .mini-play{position:absolute;right:4px;bottom:4px;background:rgba(0,0,0,.68);border-radius:50%;width:18px;height:18px;display:grid;place-items:center;font-size:12px}
.generic-thumb{width:100%;height:100%;display:flex;align-items:flex-end;padding:12px;background:linear-gradient(145deg,#22272d,#15181c);color:#747c85}
.generic-thumb strong{font-size:18px;color:#9ba2aa;letter-spacing:.4px}
.audio-thumb{width:100%;height:100%;display:grid;place-items:center;background:repeating-linear-gradient(90deg,#1b1f23 0,#1b1f23 3px,#15181b 3px,#15181b 7px);color:#a9b0b7;font-size:18px}

.list-view{width:100%;border-top:1px solid #22262b}
.list-head,.list-row{display:grid;grid-template-columns:minmax(260px,2.2fr) minmax(90px,.7fr) minmax(120px,.9fr) minmax(160px,1fr) minmax(100px,.7fr) 42px;align-items:center;column-gap:14px}
.list-head{height:38px;color:#666e77;font-size:12px;border-bottom:1px solid #20242a}
.list-row{min-height:64px;border-bottom:1px solid #1a1d21;font-size:12px;cursor:pointer;user-select:none}
.list-row:hover{background:#111418}
.list-row.is-selected{background:#15202b}
.list-name{display:grid;grid-template-columns:74px minmax(0,1fr);align-items:center;gap:12px;min-width:0}
.list-thumb{position:relative;width:74px;height:46px;border-radius:4px;overflow:hidden;background:#191d21}
.list-thumb img{width:100%;height:100%;object-fit:cover}
.list-thumb .folder-mosaic{gap:1px}
.list-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}
.list-muted{color:#737b84;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-price{color:var(--price);font-size:13px}
.row-more{border:0;background:transparent;color:#6f7780;font-size:18px;height:30px}

.empty-state{min-height:46vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#6f7780;gap:9px}
.empty-state strong{font-size:16px;color:#aeb4bb}
.empty-state span{font-size:12px;max-width:520px}

.drop-overlay{position:fixed;inset:0;z-index:200;background:rgba(6,7,9,.88);display:grid;place-items:center;pointer-events:none}
.drop-overlay>div{width:min(620px,80vw);height:220px;border:1px dashed #56606b;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#101317}
.drop-overlay strong{font-size:20px}.drop-overlay span{font-size:12px;color:#858d96}

.panel-backdrop{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.52)}
.side-panel{position:fixed;right:0;top:0;z-index:90;width:min(560px,90vw);height:100vh;background:#111316;border-left:1px solid #282d33;display:grid;grid-template-rows:auto auto 1fr auto}
.panel-head{padding:18px 18px 15px;display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid #23272c}
.icon-button{width:32px;height:32px;border:0;border-radius:4px;background:#1b1f24;color:#a9afb6;font-size:20px}
.icon-button:hover{background:#24292f;color:#fff}
.panel-tools{padding:10px 18px;display:flex;align-items:flex-end;gap:8px;border-bottom:1px solid #20242a}
.panel-tools label{font-size:12px;color:#8b929a;display:flex;flex-direction:column;gap:5px}
.panel-tools input{width:180px;height:34px;background:#0d0f11;color:#fff;border:1px solid #2a3037;border-radius:5px;padding:0 9px;font-size:13px}
.panel-content{overflow:auto;padding:0 18px}
.panel-item{display:grid;grid-template-columns:86px minmax(0,1fr) 120px;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid #22262b}
.panel-preview{width:86px;height:58px;border-radius:4px;overflow:hidden;background:#1b1f24;position:relative}
.panel-preview img{width:100%;height:100%;object-fit:cover}
.panel-preview .folder-mosaic{gap:1px}
.panel-item-main{min-width:0}.panel-item-name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.panel-item-sub{margin-top:4px;color:#757d86;font-size:12px}
.panel-item-actions{display:flex;flex-direction:column;gap:6px;align-items:stretch}
.panel-item-actions input{height:32px;width:100%;background:#0d0f11;color:#fff;border:1px solid #2a3037;border-radius:4px;padding:0 8px;font-size:12px}
.panel-item-actions button{height:29px;border:0;border-radius:4px;background:#20242a;color:#c8ccd1;font-size:12px}
.panel-foot{padding:12px 18px;border-top:1px solid #252a30;display:flex;justify-content:flex-end}

.price-dialog,.thumb-dialog{border:1px solid #30353c;background:#13161a;color:#fff;border-radius:7px;padding:0;box-shadow:none;max-width:90vw}
.price-dialog::backdrop,.thumb-dialog::backdrop{background:rgba(0,0,0,.72)}
.price-dialog form{width:430px;max-width:86vw;padding:20px}
.price-dialog h2{font-size:18px}.price-dialog p{font-size:12px;color:#7f8790;margin:7px 0 18px}.price-dialog label{display:flex;flex-direction:column;gap:7px;font-size:12px;color:#9aa1a9}
.price-dialog input{height:38px;border:1px solid #30353c;border-radius:5px;background:#0b0d0f;color:#fff;padding:0 10px;font-size:14px}
.dialog-actions{display:flex;justify-content:flex-end;gap:7px;margin-top:18px}
.thumb-dialog form{width:min(900px,90vw);padding:18px}
.thumb-dialog-head{display:flex;align-items:flex-start;justify-content:space-between}
.thumb-help{font-size:12px;color:#808891;margin:7px 0 14px}
.thumb-picker{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;max-height:60vh;overflow:auto;padding-right:4px}
.thumb-option{position:relative;aspect-ratio:16/10;background:#1a1e22;border-radius:5px;overflow:hidden;border:2px solid transparent;cursor:pointer}
.thumb-option img{width:100%;height:100%;object-fit:cover;display:block}
.thumb-option.is-chosen{border-color:var(--accent)}
.thumb-order{position:absolute;top:5px;left:5px;width:24px;height:24px;border-radius:50%;background:var(--accent);display:grid;place-items:center;font-size:12px}
.thumb-option .mini-play{position:absolute;right:5px;bottom:5px;width:22px;height:22px;border-radius:50%;background:rgba(0,0,0,.7);display:grid;place-items:center;font-size:12px}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:250;background:#f2f4f5;color:#0d0f11;border-radius:5px;padding:10px 14px;font-size:12px;box-shadow:0 8px 24px rgba(0,0,0,.22)}

/* detail */
.detail-body{min-height:100vh}
.detail-topbar{height:62px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #181b1f;background:#0b0c0e;position:sticky;top:0;z-index:20}
.detail-actions{display:flex;gap:7px}
.detail-main{padding:18px 22px 28px}
.breadcrumb{display:flex;align-items:center;gap:8px;min-height:28px;color:#757d86;font-size:12px;margin-bottom:13px;white-space:nowrap;overflow:auto}
.breadcrumb a:hover{color:#fff}.breadcrumb .sep{color:#444b53}
.file-detail{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px;align-items:start}
.media-stage{position:relative;min-height:calc(100vh - 140px);background:#070809;display:grid;place-items:center;border-radius:6px;overflow:hidden}
.media-wrap{width:100%;height:100%;min-height:calc(100vh - 140px);display:grid;place-items:center;padding:18px}
.media-wrap img{max-width:100%;max-height:calc(100vh - 176px);object-fit:contain;display:block}
.media-wrap video{max-width:100%;max-height:calc(100vh - 176px);width:auto;height:auto;background:#000}
.media-wrap audio{width:min(680px,85%)}
.media-wrap .generic-detail{display:flex;flex-direction:column;align-items:center;gap:10px;color:#757d86}.generic-detail strong{font-size:22px;color:#aeb5bd}
.nav-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:38px;height:60px;border:0;border-radius:5px;background:rgba(19,22,26,.76);color:#dfe3e7;font-size:30px;opacity:.3}
.nav-arrow:hover{opacity:1;background:rgba(28,32,37,.94)}.nav-arrow.prev{left:10px}.nav-arrow.next{right:10px}
.detail-info{position:sticky;top:82px;padding:3px 2px}
.detail-info h1{font-size:23px;margin-top:1px;line-height:1.45}
.detail-price{font-size:18px;color:var(--price);margin-top:12px}
.meta-list{margin:22px 0 0}
.meta-list>div{display:grid;grid-template-columns:84px minmax(0,1fr);gap:10px;padding:11px 0;border-bottom:1px solid #20242a}
.meta-list dt{font-size:12px;color:#6f7780}.meta-list dd{margin:0;font-size:12px;color:#c6cbd0;word-break:break-all}
.slideshow-hint{margin-top:18px;color:#656d76;font-size:12px;line-height:1.65}
.folder-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:17px}
.folder-head h1{font-size:26px}.folder-subline{display:flex;gap:12px;margin-top:7px;font-size:12px;color:#7b838c}.folder-subline span:last-child{color:var(--price)}
.folder-detail .grid-view{padding-bottom:25px}

@media (max-width:1380px){
  .grid-view.view-8{grid-template-columns:repeat(7,minmax(0,1fr))}
  .grid-view.view-6{grid-template-columns:repeat(5,minmax(0,1fr))}
}
@media (max-width:1180px){
  :root{--sidebar:168px}
  .brand-name{display:none}.sidebar .brand-name{display:inline}
  .grid-view.view-8{grid-template-columns:repeat(6,minmax(0,1fr))}
  .grid-view.view-6{grid-template-columns:repeat(5,minmax(0,1fr))}
  .grid-view.view-4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .file-detail{grid-template-columns:minmax(0,1fr) 270px}
}
@media (max-width:980px){
  :root{--sidebar:70px}
  .sidebar{padding-left:9px;padding-right:9px}.sidebar .brand{justify-content:center}.sidebar .brand-name,.side-link .count,.side-link span:first-child{display:none}.side-link{height:42px;justify-content:center}.side-link::before{content:"•";font-size:22px;color:#5e6670}.side-link.is-active::before{color:#fff}
  .sidebar-foot{display:none}
  .topbar{padding:0 14px}.quiet-button{padding:0 9px}.content-head,.library-area{padding-left:14px;padding-right:14px}.selection-bar{margin-left:14px;margin-right:14px}
  .grid-view.view-4{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-view.view-6{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-view.view-8{grid-template-columns:repeat(5,minmax(0,1fr))}
  .list-head,.list-row{grid-template-columns:minmax(240px,2fr) 90px 110px 140px 90px 35px}
  .file-detail{grid-template-columns:1fr}.detail-info{position:static}.media-stage,.media-wrap{min-height:65vh}.media-wrap img,.media-wrap video{max-height:60vh}
}
@media (max-width:760px){
  .app-shell{grid-template-columns:1fr}.sidebar{display:none}.topbar{position:static;height:auto;min-height:62px;flex-wrap:wrap;padding:10px}.search-wrap{order:2;flex-basis:100%;max-width:none}.content-head{align-items:flex-start;flex-direction:column}.view-controls{justify-content:flex-start}.top-actions{width:100%}.top-actions .quiet-button:first-child{display:none}.grid-view.view-4,.grid-view.view-6{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-view.view-8{grid-template-columns:repeat(3,minmax(0,1fr))}.selection-bar{top:0;flex-direction:column;align-items:stretch}.selection-bar>div:first-child{justify-content:space-between}.selection-actions{overflow:auto}.list-view{overflow-x:auto}.list-head,.list-row{min-width:840px}.detail-topbar .brand-name{display:none}.detail-main{padding:14px 12px}.folder-head{align-items:flex-start;flex-direction:column}.thumb-picker{grid-template-columns:repeat(3,minmax(0,1fr))}
}

/* =========================================================
   LIGHT THEME / selectable font / native weight 400
   ========================================================= */
:root{
  --bg:#f7f7f5;
  --panel:#ffffff;
  --panel-2:#f1f1ee;
  --panel-3:#e9eae6;
  --text:#18191b;
  --muted:#777b80;
  --muted-2:#4e5257;
  --line:#dedfda;
  --accent:#2f6fed;
  --accent-strong:#245dce;
  --price:#a95d00;
  --danger:#c43c3c;
  --success:#297a47;
}
html,body{
  color-scheme:light;
  background:var(--bg);
  color:var(--text);
  font-weight:var(--app-font-weight);
  font-synthesis:var(--app-font-synthesis);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,strong,b,button,input,select,option,label,dt,dd{
  font-weight:var(--app-font-weight);
  font-synthesis:var(--app-font-synthesis);
}

.sidebar{background:#efefec;border-right-color:#dedfda}
.brand-mark{background:#1b1c1e;color:#fff}
.brand-name{color:#17181a}
.side-link{color:#55595e}
.side-link:hover{background:#e5e5e1;color:#17181a}
.side-link.is-active{background:#dedfda;color:#111214}
.side-link .count{color:#8a8e92}
.sidebar-foot{color:#8a8d91}
.text-action{color:#6f7378}
.text-action:hover{color:#161719}

.topbar{background:rgba(250,250,248,.96);border-bottom-color:#e3e3df;backdrop-filter:saturate(120%) blur(10px)}
.search-wrap input{background:#ededeb;color:#17181a}
.search-wrap input::placeholder{color:#909398}
.search-icon,.search-clear{color:#7d8186}
.quiet-button,.selection-actions button,.panel-tools button,.dialog-actions button{border-color:#d8d9d5;background:#f5f5f2;color:#25272a}
.quiet-button:hover,.selection-actions button:hover,.panel-tools button:hover,.dialog-actions button:hover{background:#e9e9e5;border-color:#c9cac5}
.primary-button{background:#1d1f22;border-color:#1d1f22;color:#fff}
.primary-button:hover{background:#000;border-color:#000}

.eyebrow{color:#8a8e93}
.sort-control{color:#777b80}
.sort-control select{background:#f2f2ef;color:#242629;border-color:#d8d9d5}
.segmented{background:#ecece9}
.segmented button{border-right-color:#d5d6d2;color:#73777c}
.segmented button:hover{color:#17181a;background:#e2e2de}
.segmented button.is-active{background:#cfcfca;color:#121315}

.selection-bar{background:#e7eefc;color:#172037}
.selection-bar span{color:#687184}
.selection-actions button{background:#f8faff;border-color:#cfd9f0}
.selection-actions button:hover{background:#dfe8f9;border-color:#bfcbe4}

.media-thumb{background:#e8e8e4}
.media-thumb::after{border-color:rgba(0,0,0,.055)}
.media-card:hover .media-thumb{filter:brightness(.985)}
.media-card.is-selected .media-title{color:#111214}
.media-title{color:#222326}
.media-meta{color:#81858a}
.card-check{border-color:rgba(255,255,255,.86);background:rgba(20,21,23,.72)}
.card-more{background:rgba(20,21,23,.70);color:#fff}
.type-chip{background:rgba(20,21,23,.75);color:#fff}
.folder-mosaic,.folder-cell{background:#d8d9d5}
.folder-cell{color:#888c91}
.generic-thumb{background:linear-gradient(145deg,#e1e2de,#d1d2ce);color:#777b80}
.generic-thumb strong{color:#666a70}
.audio-thumb{background:repeating-linear-gradient(90deg,#dedfda 0,#dedfda 3px,#d2d3cf 3px,#d2d3cf 7px);color:#61656a}

.list-view{border-top-color:#dedfda}
.list-head{color:#8b8f94;border-bottom-color:#d9dad6}
.list-row{border-bottom-color:#e4e4e0}
.list-row:hover{background:#f0f0ed}
.list-row.is-selected{background:#e7eefc}
.list-thumb{background:#e5e5e1}
.list-muted{color:#7f8388}
.row-more{color:#73777c}
.empty-state{color:#83878c}
.empty-state strong{color:#55595e}

.drop-overlay{background:rgba(247,247,245,.94)}
.drop-overlay>div{border-color:#9fa3a8;background:#fff;color:#222326}
.drop-overlay span{color:#73777c}
.panel-backdrop{background:rgba(34,35,37,.30)}
.side-panel{background:#fff;border-left-color:#d7d8d4}
.panel-head{border-bottom-color:#e1e1dd}
.icon-button{background:#efefec;color:#686c71}
.icon-button:hover{background:#e1e2de;color:#17181a}
.panel-tools{border-bottom-color:#e1e1dd}
.panel-tools label{color:#74787d}
.panel-tools input{background:#fafaf8;color:#17181a;border-color:#d6d7d2}
.panel-content{background:#fff}
.panel-item{border-bottom-color:#e4e4e0}
.panel-preview{background:#e5e5e1}
.panel-item-sub{color:#85898e}
.panel-item-actions input{background:#fafaf8;color:#17181a;border-color:#d6d7d2}
.panel-item-actions button{background:#ededeb;color:#383b3f}
.panel-item-actions button:hover{background:#e1e1de}
.panel-foot{border-top-color:#dedfda;background:#fff}

.price-dialog,.thumb-dialog{border-color:#d5d6d2;background:#fff;color:#191a1c}
.price-dialog::backdrop,.thumb-dialog::backdrop{background:rgba(20,21,23,.34)}
.price-dialog p,.thumb-help{color:#7c8085}
.price-dialog label{color:#666a6f}
.price-dialog input{border-color:#d5d6d2;background:#fafaf8;color:#17181a}
.thumb-option{background:#e6e6e2}
.toast{background:#1f2124;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.12)}

/* detail */
.detail-topbar{border-bottom-color:#dfdfdb;background:#fafaf8}
.breadcrumb{color:#7d8186}
.breadcrumb a:hover{color:#18191b}
.breadcrumb .sep{color:#b2b4b7}
.media-stage{background:#ececea}
.media-wrap .generic-detail{color:#777b80}
.generic-detail strong{color:#55595e}
.nav-arrow{background:rgba(29,31,34,.72);color:#fff}
.nav-arrow:hover{background:rgba(16,17,19,.88)}
.meta-list>div{border-bottom-color:#dedfda}
.meta-list dt{color:#85898e}
.meta-list dd{color:#42454a}
.slideshow-hint{color:#85898e}
.folder-subline{color:#7d8186}

@media (max-width:980px){
  .side-link::before{color:#8b8f94}
  .side-link.is-active::before{color:#17181a}
}


/* Font selector + lightweight detail thumbnail */
.font-picker{margin-top:20px;padding:0 2px;display:flex;flex-direction:column;gap:6px}
.font-picker label{font-size:12px;color:#7a7e83}
.font-picker select,.detail-font-picker select{height:34px;min-width:0;border:1px solid #d7d8d4;border-radius:5px;background:#f8f8f6;color:#222326;padding:0 26px 0 9px;font-size:12px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.font-picker select{width:100%}
.detail-font-picker{display:flex;align-items:center;gap:7px;color:#7b7f84;font-size:12px;white-space:nowrap}
.detail-font-picker select{width:148px}.detail-font-picker select#fontWeightSelect{width:116px}
.detail-video-thumb{margin-top:18px}
.detail-video-thumb>span{display:block;margin-bottom:7px;color:#85898e;font-size:12px}
.detail-video-thumb-image{position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;border-radius:6px;background:#e4e4e0}
.detail-video-thumb-image img{width:100%;height:100%;display:block;object-fit:cover}
.detail-video-thumb-image::after{content:"▶";position:absolute;right:8px;bottom:8px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:rgba(18,19,21,.72);color:#fff;font-size:12px}
.media-wrap video{content-visibility:auto}
.media-card,.list-row{contain:layout style paint}
@media (max-width:760px){.detail-font-picker{display:none}}

/* Safari / large-library performance tuning */
.topbar{backdrop-filter:none;-webkit-backdrop-filter:none}
@supports (content-visibility:auto){
  .media-card{content-visibility:auto;contain-intrinsic-size:180px}
  .list-row{content-visibility:auto;contain-intrinsic-size:64px}
}

.font-picker label:not(:first-child){margin-top:4px}
.font-weight-note{min-height:17px;font-size:12px;line-height:1.35;color:#85898e}
.font-weight-note[data-synthetic="true"]{color:#9a6a2f}
html,body,button,input,select,option,label,h1,h2,h3,h4,h5,h6,strong,b,dt,dd{font-weight:var(--app-font-weight)}


.video-thumb-fallback{width:100%;height:100%;display:grid;place-items:center;background:#d5d6d2;color:#6d7176;font-size:12px;letter-spacing:.04em}
.primary-button:disabled{opacity:.45;cursor:not-allowed}

/* Folder-detail add flow */
.folder-empty-state{min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px;color:#5f6368;background:#fafaf8;margin:6px 0 18px;border-radius:6px}
.folder-empty-state[hidden]{display:none}
.folder-empty-state strong{font-size:17px;color:#292b2e}
.folder-empty-state span{font-size:13px}
.folder-empty-state>div{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap;justify-content:center}
.folder-drop-hint{position:sticky;top:72px;z-index:12;margin:0 0 12px;padding:10px 14px;background:#25272a;color:#fff;border-radius:5px;font-size:13px;text-align:center}
.folder-drop-hint[hidden]{display:none}
.folder-detail.is-folder-dragover .grid-view,.folder-detail.is-folder-dragover .list-view,.folder-detail.is-folder-dragover .folder-empty-state{opacity:.58}
body.is-busy{cursor:progress}
@media(max-width:760px){.folder-empty-state{min-height:190px}.folder-head .view-controls{width:100%}}

/* =========================================================
   Viewer/Admin split, mobile header, pagination, gate
   ========================================================= */
html.auth-pending body{visibility:hidden}
.mobile-topline,.detail-hamburger{display:none}
.page-size-control{display:flex;align-items:center;gap:8px;color:#777b80;font-size:12px}
.page-size-control select{height:34px;min-width:86px;background:#f2f2ef;color:#242629;border:1px solid #d8d9d5;border-radius:5px;padding:0 28px 0 10px;font-size:12px}
.pagination{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:2px 22px 28px;color:#7b7f84;font-size:12px}
.pagination[hidden]{display:none!important}
.pagination-summary{white-space:nowrap}
.pagination-controls{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:flex-end}
.pagination-controls button{min-width:34px;height:34px;padding:0 9px;border:1px solid #d8d9d5;border-radius:5px;background:#f5f5f2;color:#3d4044;font-size:12px;display:inline-flex;align-items:center;justify-content:center;line-height:1}
.pagination-controls button:hover:not(:disabled){background:#e8e8e4;color:#111214}
.pagination-controls button.is-active{background:#1d1f22;border-color:#1d1f22;color:#fff}
.pagination-controls button:disabled{opacity:.38;cursor:default}
.pagination-dots{min-width:20px;text-align:center;color:#999da1}
.detail-pagination{padding-left:0;padding-right:0;padding-bottom:8px;margin-top:8px}

.access-settings{margin-top:18px;padding:15px 2px 0;border-top:1px solid #d9dad6;display:flex;flex-direction:column;gap:7px}
.access-settings-title{font-size:13px;color:#292b2e;margin-bottom:2px}
.access-settings label,.access-note{font-size:12px;color:#7a7e83}
.password-setting-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px}
.password-setting-row input{min-width:0;height:34px;border:1px solid #d7d8d4;border-radius:5px;background:#f8f8f6;color:#222326;padding:0 9px;font-size:12px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.password-setting-row button{height:34px;border:1px solid #d0d1cc;border-radius:5px;background:#e7e7e3;color:#232528;padding:0 10px;font-size:12px;display:inline-flex;align-items:center;justify-content:center}
.password-setting-row button:hover{background:#dcdcd7}
.access-settings .text-action{margin-top:2px}

.viewer-topbar{justify-content:flex-start}
.viewer-topbar .search-wrap{max-width:760px}
.viewer-card,.viewer-row{cursor:pointer}
.viewer-card:hover .media-thumb{filter:brightness(.985)}
.viewer-chevron{color:#909499;font-size:18px;text-align:center}
.viewer-foot{margin-top:auto}
.viewer-empty-folder{border:0;background:#fafaf8}

.hamburger-button{width:40px;height:40px;border:0;border-radius:5px;background:transparent;display:none;align-items:center;justify-content:center;flex-direction:column;gap:4px;padding:0}
.hamburger-button span{width:18px;height:1.5px;background:#26282b;border-radius:2px;display:block}
.hamburger-button:hover{background:#ecece8}
.mobile-nav-backdrop{position:fixed;inset:0;z-index:89;border:0;background:rgba(22,23,25,.28);padding:0}
.mobile-nav-backdrop[hidden]{display:none!important}

/* Door page */
.gate-body{min-height:100vh;background:#f7f7f5;color:#18191b}
.gate-header{height:66px;display:flex;align-items:center;padding:0 24px;border-bottom:1px solid #e2e2de;background:#fafaf8}
.gate-main{min-height:calc(100vh - 66px);display:grid;place-items:center;padding:42px 20px 64px}
.gate-panel{width:min(520px,100%);padding:0 4px}
.gate-panel h1{font-size:28px;line-height:1.35;letter-spacing:-.45px;margin:0}
.gate-copy{margin:10px 0 24px;color:#7b7f84;font-size:13px}
.gate-form{display:flex;flex-direction:column;gap:8px}
.gate-form>label{font-size:12px;color:#6f7378}
.gate-input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}
.gate-input-row input{height:44px;min-width:0;border:1px solid #d0d1cc;border-radius:6px;background:#fff;color:#18191b;padding:0 13px;font-size:14px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.gate-input-row .primary-button{height:44px;padding:0 18px}
.gate-error{min-height:20px;margin:2px 0 0;color:#b73535;font-size:12px}
.gate-form.is-error .gate-input-row input{border-color:#c75b5b}

@media (max-width:980px) and (min-width:761px){
  .access-settings,.font-picker{display:none}
}

@media (max-width:760px){
  .topbar{position:sticky;top:0;z-index:42;padding:8px 10px 10px;gap:8px;background:#fafaf8;border-bottom:1px solid #e3e3df}
  .mobile-topline{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:42px;order:-2}
  .mobile-brand{display:flex;align-items:center;gap:9px;min-width:0}
  .mobile-brand .brand-name{display:inline!important;font-size:14px;color:#17181a;white-space:nowrap}
  .hamburger-button{display:inline-flex}
  .search-wrap{order:-1;flex-basis:100%;max-width:none}
  .top-actions{order:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;gap:6px}
  .top-actions .quiet-button:first-child{display:inline-flex}
  .top-actions .primary-button{grid-column:span 2}
  .content-head{padding-top:18px}
  .content-head .view-controls{width:100%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .content-head .sort-control,.content-head .page-size-control{display:grid;grid-template-columns:auto minmax(0,1fr);gap:7px}
  .content-head .sort-control select,.content-head .page-size-control select{min-width:0;width:100%}
  .content-head .segmented{grid-column:1 / -1;width:100%}
  .content-head .segmented button{flex:1}
  .segmented{display:flex}
  .pagination{padding-left:12px;padding-right:12px;align-items:flex-start;flex-direction:column}
  .pagination-controls{justify-content:flex-start;width:100%}
  .pagination-controls button{min-width:36px;height:36px}
  .sidebar{display:flex!important;position:fixed;left:0;top:0;bottom:0;width:min(310px,84vw);height:100%;z-index:90;padding:16px 14px 18px;transform:translateX(-105%);transition:transform .18s ease;background:#efefec;border-right:1px solid #d7d8d4;box-shadow:none;overflow-y:auto}
  .sidebar.is-mobile-open{transform:translateX(0)}
  .sidebar .brand{justify-content:flex-start}.sidebar .brand-name{display:inline!important}.sidebar .side-link span:first-child,.sidebar .side-link .count{display:inline!important}.sidebar .side-link{height:auto;justify-content:space-between}.sidebar .side-link::before{display:none!important}.sidebar-foot{display:flex!important}
  .sidebar .font-picker,.sidebar .access-settings{display:flex}
  body.mobile-menu-open{overflow:hidden}
  .viewer-topbar{padding-bottom:10px}
  .viewer-topbar .search-wrap{order:-1}

  .detail-topbar{height:60px;padding:0 12px;z-index:42}
  .detail-topbar .brand-name{display:inline!important;font-size:14px}
  .detail-hamburger{display:inline-flex;margin-left:auto}
  .detail-actions{display:none;position:fixed;top:68px;right:10px;z-index:92;width:min(300px,calc(100vw - 20px));padding:10px;background:#fafaf8;border:1px solid #d9dad6;border-radius:6px;flex-direction:column;align-items:stretch;gap:6px}
  .detail-actions.is-mobile-open{display:flex}
  .detail-actions .quiet-button{width:100%;height:40px}
  .detail-actions .detail-font-picker{display:none}
  .folder-head .view-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .folder-head .sort-control,.folder-head .page-size-control{display:grid;grid-template-columns:auto minmax(0,1fr);gap:7px}
  .folder-head .sort-control select,.folder-head .page-size-control select{width:100%;min-width:0}
  .folder-head .segmented{grid-column:1/-1;width:100%}
  .folder-head .segmented button{flex:1}
  .folder-head .view-controls>.quiet-button{width:100%}
  .detail-pagination{padding-left:0;padding-right:0}
  .viewer-detail-actions .quiet-button{width:100%}

  .gate-header{height:60px;padding:0 14px}
  .gate-main{min-height:calc(100vh - 60px);place-items:start center;padding:72px 16px 40px}
  .gate-panel h1{font-size:24px}
  .gate-input-row{grid-template-columns:1fr}
  .gate-input-row .primary-button{width:100%}
}

/* =========================================================
   Stable rebuild additions: branding + viewer download
   Existing layout values above are intentionally preserved.
   ========================================================= */
.brand-custom{min-width:0;overflow:hidden}
.brand-custom-text{display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px;line-height:1.1;color:#17181a;letter-spacing:.02em}
.brand-logo-image{display:block;max-width:154px;max-height:34px;width:auto;height:auto;object-fit:contain;object-position:left center}
.mobile-brand .brand-logo-image{max-width:min(190px,62vw);max-height:30px}
.detail-topbar .brand-logo-image{max-width:min(190px,46vw);max-height:32px}
.gate-header .brand-logo-image{max-width:min(210px,70vw);max-height:34px}
.detail-topbar .brand-custom-text,.mobile-brand .brand-custom-text{font-size:14px}
.gate-header .brand-custom-text{font-size:16px}

.brand-dialog{width:min(520px,calc(100vw - 28px))}
.brand-dialog form{display:flex;flex-direction:column;gap:12px}
.brand-dialog form>label,.brand-dialog-fields label{display:flex;flex-direction:column;gap:6px;color:#666a6f;font-size:12px}
.brand-dialog select,.brand-dialog input[type="text"],.brand-dialog input[type="file"]{width:100%;min-width:0;height:38px;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8;color:#17181a;padding:0 10px;font-size:13px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.brand-dialog input[type="file"]{height:auto;min-height:38px;padding:8px}
.brand-dialog-fields{display:flex;flex-direction:column;gap:10px}
.brand-dialog-fields[hidden]{display:none!important}
.brand-image-preview{height:76px;display:flex;align-items:center;justify-content:flex-start;padding:10px;background:#f2f2ef;border-radius:5px;color:#8a8e93;font-size:12px;overflow:hidden}
.brand-image-preview img{display:block;max-width:100%;max-height:56px;width:auto;height:auto;object-fit:contain;object-position:left center}
.brand-dialog-actions{margin-top:2px;flex-wrap:wrap}

.viewer-selection-bar .selection-actions button:disabled{opacity:.45;cursor:default}
.viewer-card .card-check,.viewer-row .card-check{cursor:pointer}

@media (max-width:760px){
  /* Mobile menu opens from the RIGHT; all other stable mobile spacing remains unchanged. */
  .sidebar{left:auto!important;right:0!important;transform:translateX(105%)!important;border-right:0!important;border-left:1px solid #d7d8d4!important}
  .sidebar.is-mobile-open{transform:translateX(0)!important}

  .detail-actions{display:flex!important;position:fixed!important;top:0!important;right:0!important;bottom:0!important;width:min(310px,84vw)!important;padding:76px 14px 18px!important;background:#fafaf8!important;border:0!important;border-left:1px solid #d9dad6!important;border-radius:0!important;flex-direction:column!important;align-items:stretch!important;gap:6px!important;transform:translateX(105%)!important;transition:transform .18s ease!important;overflow-y:auto!important}
  .detail-actions.is-mobile-open{transform:translateX(0)!important}

  .viewer-selection-bar{position:static;margin-top:0}
  .viewer-card .card-check,.viewer-row .card-check{opacity:.86}
  .brand-dialog{width:calc(100vw - 24px)}
}
@media (max-width:980px) and (min-width:761px){
  .sidebar .brand-custom{justify-content:center}
  .sidebar .brand-logo-image{max-width:50px;max-height:30px;object-position:center}
  .sidebar .brand-custom-text{max-width:50px;font-size:12px;text-align:center}
}
.viewer-row:hover .card-check,.viewer-row.is-selected .card-check{opacity:1}

/* =========================================================
   Stable additions v8: text-logo size preview + gate background
   Existing layout above is intentionally untouched.
   ========================================================= */
.brand-dialog input[type="number"]{width:100%;min-width:0;height:38px;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8;color:#17181a;padding:0 10px;font-size:13px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.brand-text-preview{min-height:76px;display:flex;align-items:center;justify-content:flex-start;padding:10px;background:#f2f2ef;border-radius:5px;overflow:hidden;color:#17181a}
.brand-preview-text{display:block;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.15}

.gate-body{background-position:center;background-size:cover;background-repeat:no-repeat;background-attachment:fixed;position:relative;isolation:isolate}
.gate-body.has-gate-background::before{content:"";position:fixed;inset:0;z-index:-1;background:var(--gate-overlay-color,#fff);opacity:var(--gate-overlay-opacity,.18);pointer-events:none}

.gate-theme-dialog{width:min(600px,calc(100vw - 28px))}
.gate-theme-dialog form{display:flex;flex-direction:column;gap:12px}
.gate-theme-dialog form>label,.gate-theme-fields label{display:flex;flex-direction:column;gap:6px;color:#666a6f;font-size:12px}
.gate-theme-dialog input[type="file"]{width:100%;min-width:0;min-height:38px;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8;color:#17181a;padding:8px;font-size:13px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.gate-theme-preview{height:190px;position:relative;overflow:hidden;border-radius:6px;background:#f7f7f5 center/cover no-repeat;display:grid;place-items:center}
.gate-theme-preview::before{content:"";position:absolute;inset:0;background:var(--preview-overlay-color,#fff);opacity:var(--preview-overlay-opacity,.18);z-index:1}
.gate-theme-preview-content{position:relative;z-index:2;display:flex;flex-direction:column;gap:5px;padding:16px 18px;background:rgba(250,250,248,.88);border-radius:5px;color:#18191b;max-width:75%}
.gate-theme-preview-content strong{font-size:17px;line-height:1.4}
.gate-theme-preview-content span{font-size:12px;color:#72767b}
.gate-theme-fields{display:grid;grid-template-columns:110px minmax(0,1fr);gap:12px;align-items:end}
.gate-theme-fields input[type="color"]{width:100%;height:38px;padding:3px;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8}
.gate-opacity-row{display:grid;grid-template-columns:minmax(0,1fr) 68px auto;gap:7px;align-items:center}
.gate-opacity-row input[type="range"]{width:100%}
.gate-opacity-row input[type="number"]{height:38px;min-width:0;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8;color:#17181a;padding:0 8px;font-size:13px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.gate-opacity-row span{font-size:12px;color:#666a6f}
.gate-theme-actions{flex-wrap:wrap}

/* Viewer: selection is always discoverable without changing the card layout. */
.viewer-card .card-check,.viewer-row .card-check{opacity:.62}
.viewer-card:hover .card-check,.viewer-card.is-selected .card-check,.viewer-row:hover .card-check,.viewer-row.is-selected .card-check{opacity:1}

@media (max-width:760px){
  .gate-body{background-attachment:scroll}
  .gate-theme-dialog{width:calc(100vw - 24px)}
  .gate-theme-preview{height:160px}
  .gate-theme-fields{grid-template-columns:1fr}
}

/* =========================================================
   Stable additions v9: Material sidebar icons, product genre,
   viewer detail bulk download, icon-only empty state.
   Existing stable layout above remains unchanged.
   ========================================================= */
.side-link{justify-content:flex-start;gap:9px}
.side-link::before{
  font-family:"Material Symbols Rounded";
  font-weight:400;
  font-style:normal;
  font-size:19px;
  line-height:1;
  letter-spacing:normal;
  text-transform:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:20px;
  min-width:20px;
  color:#8a8e93;
  font-variation-settings:"FILL" 0,"wght" 400,"GRAD" 0,"opsz" 20;
  -webkit-font-feature-settings:"liga";
  -webkit-font-smoothing:antialiased;
}
.side-link[data-filter="all"]::before{content:"grid_view"}
.side-link[data-filter="folder"]::before{content:"folder"}
.side-link[data-filter="image"]::before{content:"image"}
.side-link[data-filter="video"]::before{content:"movie"}
.side-link[data-filter="other"]::before{content:"draft"}
.side-link[data-filter="product"]::before{content:"shopping_bag"}
.side-link[data-filter="recent"]::before{content:"schedule"}
.side-link[data-filter="favorite"]::before{content:"favorite"}
.side-link.is-active::before{color:#17181a}
.side-link .count{margin-left:auto}

.panel-item-actions select.panel-genre-select{
  min-width:92px;
  height:34px;
  border:1px solid #d6d7d2;
  border-radius:5px;
  background:#fafaf8;
  color:#383b3f;
  padding:0 27px 0 9px;
  font-size:12px;
  font-family:var(--app-font);
  font-weight:var(--app-font-weight);
}

.detail-selection-bar{position:static;margin:0 0 14px}
.detail-selection-bar .selection-actions button:disabled{opacity:.45;cursor:default}

.empty-icon-state{gap:0}
.empty-library-icon{
  font-family:"Material Symbols Rounded"!important;
  font-size:64px!important;
  line-height:1!important;
  color:#c3c5c2;
  max-width:none!important;
  font-variation-settings:"FILL" 0,"wght" 300,"GRAD" 0,"opsz" 48;
  -webkit-font-feature-settings:"liga";
  -webkit-font-smoothing:antialiased;
}

@media (max-width:980px) and (min-width:761px){
  .side-link{justify-content:center;gap:0}
  .side-link::before{display:inline-flex!important;margin:0}
  .side-link .count{display:none!important}
}
@media (max-width:760px){
  .sidebar .side-link{justify-content:flex-start!important;gap:9px!important}
  .sidebar .side-link::before{display:inline-flex!important}
  .sidebar .side-link .count{margin-left:auto!important}
  .detail-selection-bar{margin:0 0 12px}
}

/* =========================================================
   Stable additions v10: viewer favorites, header logout,
   legal pages/settings. Existing styles above are preserved.
   ========================================================= */
.viewer-top-actions{margin-left:auto;display:flex;align-items:center;flex:0 0 auto}
.viewer-top-actions .quiet-button{height:34px}

.favorite-toggle{position:absolute;right:7px;top:7px;z-index:6;width:28px;height:28px;border:0;border-radius:4px;background:rgba(250,250,248,.92);color:#70757a;display:inline-flex;align-items:center;justify-content:center;padding:0;line-height:1;opacity:.9}
.favorite-toggle:hover{background:#fff;color:#313438}
.favorite-toggle .material-symbols-rounded{font-family:"Material Symbols Rounded"!important;font-size:19px;line-height:1;font-variation-settings:"FILL" 0,"wght" 400,"GRAD" 0,"opsz" 20;-webkit-font-feature-settings:"liga";font-feature-settings:"liga"}
.favorite-toggle.is-active{color:#d54646;background:#fff}
.favorite-toggle.is-active .material-symbols-rounded{font-variation-settings:"FILL" 1,"wght" 400,"GRAD" 0,"opsz" 20}
.list-thumb .favorite-toggle{right:3px;top:3px;width:22px;height:22px;border-radius:3px}
.list-thumb .favorite-toggle .material-symbols-rounded{font-size:16px}
.viewer-card .favorite-toggle,.viewer-row .favorite-toggle{opacity:.78}
.viewer-card:hover .favorite-toggle,.viewer-row:hover .favorite-toggle,.favorite-toggle.is-active{opacity:1}

.empty-icon-state strong{margin-top:12px;font-size:15px;color:#6e7277;font-weight:var(--app-font-weight)}

.viewer-legal-footer{display:flex;align-items:center;justify-content:center;gap:8px;min-height:54px;padding:12px 22px 24px;color:#888c91;font-size:12px}
.viewer-legal-footer a:hover,.gate-legal-footer a:hover,.legal-settings-links a:hover{color:#27292c}
.detail-legal-footer{padding-bottom:12px}
.gate-legal-footer{display:flex;align-items:center;justify-content:flex-start;gap:8px;margin-top:26px;color:#888c91;font-size:12px}

.legal-settings-dialog{width:min(760px,calc(100vw - 28px))}
.legal-settings-dialog form{display:flex;flex-direction:column;gap:13px;padding:20px}
.legal-settings-dialog form>label{display:flex;flex-direction:column;gap:6px;color:#666a6f;font-size:12px}
.legal-settings-dialog textarea{width:100%;min-height:170px;resize:vertical;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8;color:#17181a;padding:10px 11px;font-size:13px;line-height:1.65;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.legal-settings-dialog textarea:focus-visible{outline:2px solid #777b80;outline-offset:1px}
.legal-settings-links{display:flex;gap:16px;flex-wrap:wrap;color:#74787d;font-size:12px}

.legal-body{background:#f7f7f5;color:#18191b;min-height:100vh}
.legal-header{height:62px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 22px;border-bottom:1px solid #e1e2de;background:#fafaf8;position:sticky;top:0;z-index:20}
.legal-header .quiet-button{color:#25272a;background:#f5f5f2;border-color:#d8d9d5}
.legal-main{width:min(900px,calc(100% - 40px));margin:0 auto;padding:42px 0 64px}
.legal-main .eyebrow{color:#85898e}
.legal-main h1{font-size:28px;color:#181a1d;margin-bottom:26px}
.legal-copy{white-space:pre-wrap;font-size:14px;line-height:1.95;color:#404348;overflow-wrap:anywhere}
.legal-copy.is-empty{color:#92969a}
.legal-footer{margin-top:42px;padding-top:18px;border-top:1px solid #dedfdb;display:flex;gap:16px;flex-wrap:wrap;color:#85898e;font-size:12px}

@media(max-width:760px){
  .viewer-top-actions{position:absolute;top:12px;right:58px;width:auto!important;display:flex!important;grid-template-columns:none!important;order:0!important;margin:0}
  .viewer-top-actions .quiet-button{height:36px;padding:0 11px}
  .viewer-card .favorite-toggle,.viewer-row .favorite-toggle{opacity:1}
  .viewer-legal-footer{justify-content:flex-start;padding-left:12px;padding-right:12px}
  .legal-settings-dialog{width:calc(100vw - 24px)}
  .legal-settings-dialog form{padding:16px}
  .legal-main{width:calc(100% - 28px);padding:28px 0 48px}
  .legal-main h1{font-size:23px;margin-bottom:22px}
  .legal-header{height:60px;padding:0 14px}
}
.mobile-header-actions{display:flex;align-items:center;gap:6px;margin-left:auto}
.mobile-header-actions>.quiet-button{display:none}
@media(max-width:760px){
  .viewer-top-actions{display:none!important}
  .mobile-header-actions>.quiet-button{display:inline-flex;height:36px;padding:0 11px}
}


/* =========================================================
   Stable additions v11: legal links in viewer sidebar,
   resilient favorites, SP top count, pager alignment.
   Existing stable styles above remain unchanged.
   ========================================================= */
.viewer-sidebar-legal{margin-top:auto;display:flex;flex-direction:column;gap:7px;padding:14px 9px 2px;border-top:1px solid #dedfda;color:#85898e;font-size:12px;line-height:1.45}
.viewer-sidebar-legal a{font-size:12px;color:#85898e}
.viewer-sidebar-legal a:hover{color:#27292c}
.pagination-top-summary{display:none;color:#7b7f84;font-size:12px;line-height:1.4}
.favorite-toggle:disabled{cursor:default;opacity:.62}
.favorite-toggle.is-active .material-symbols-rounded{font-variation-settings:"FILL" 1,"wght" 500,"GRAD" 0,"opsz" 20!important}
@media(min-width:761px){
  .pagination{position:relative;justify-content:flex-start;min-height:62px}
  .pagination-controls{position:absolute;left:50%;transform:translateX(-50%);justify-content:center}
}
@media(max-width:760px){
  .pagination-top-summary{display:block;padding:0 12px 10px;text-align:left}
  .detail-top-summary{padding-left:0;padding-right:0}
  .pagination{justify-content:space-between;align-items:center}
  .pagination-controls{width:auto!important;margin-left:auto;justify-content:flex-end!important}
  .viewer-sidebar-legal{margin-top:auto;padding:16px 9px 4px}
}

@media(max-width:980px) and (min-width:761px){.viewer-sidebar-legal{display:none}}

/* =========================================================
   Stable additions v12: product panel thumbnail refresh,
   legal shell, configurable credit, detail download placement.
   Existing styles above are preserved.
   ========================================================= */
.detail-inline-download{margin-top:18px;min-width:132px;align-self:flex-start}
.detail-locked-preview{position:relative;width:100%;min-height:calc(100vh - 176px);display:grid;place-items:center;overflow:hidden}
.detail-locked-preview img{max-width:100%;max-height:calc(100vh - 176px);object-fit:contain;display:block;user-select:none;-webkit-user-drag:none}
.detail-locked-message{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);max-width:calc(100% - 28px);padding:8px 12px;border-radius:5px;background:rgba(20,21,23,.78);color:#fff;font-size:12px;white-space:nowrap}
.detail-purchase-note{margin:16px 0 0}
.viewer-credit{display:flex;align-items:center;min-height:22px;color:#85898e;line-height:1.5;overflow:hidden}
.viewer-credit[hidden]{display:none!important}
.viewer-credit .credit-text{display:block;max-width:100%;overflow-wrap:anywhere}
.viewer-credit .credit-image{display:block;max-width:100%;max-height:34px;width:auto;height:auto;object-fit:contain;object-position:left center}
.viewer-sidebar-legal .viewer-credit{margin-top:7px;padding-top:8px;border-top:1px solid #e3e4e0}
.detail-credit{max-width:calc(100% - 44px);margin:10px auto 18px;justify-content:center}
.detail-credit .credit-image{object-position:center}
.gate-credit{margin-top:20px;justify-content:center;color:#73777c}
.gate-credit .credit-image{object-position:center;max-height:30px}
.credit-dialog{width:min(520px,calc(100vw - 28px))}
.credit-text-preview{min-height:76px;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:12px;border-radius:5px;background:#f4f4f1;color:#17181a;text-align:center}
.credit-text-preview span{max-width:100%;overflow-wrap:anywhere}
.legal-shell-body{background:#f7f7f5}
.legal-shell-body .side-link{text-decoration:none}
.legal-shell-body .viewer-sidebar-legal .is-current{color:#202225}
.legal-viewer-topbar{justify-content:space-between}
.legal-topbar-label{font-size:13px;color:#777b80}
.legal-main-shell{width:min(900px,calc(100% - 44px));margin:0 auto;padding:42px 0 64px}
.legal-main-shell h1{font-size:28px;margin:0 0 26px;color:#181a1d}
.legal-main-shell .legal-copy{white-space:pre-wrap;font-size:14px;line-height:1.95;color:#404348;overflow-wrap:anywhere}
@media(max-width:760px){
  .detail-inline-download{width:100%;height:40px;margin-top:16px}
  .detail-credit{max-width:calc(100% - 28px);margin-bottom:14px}
  .legal-viewer-topbar{display:block}
  .legal-viewer-topbar>.legal-topbar-label,.legal-viewer-topbar>.top-actions{display:none}
  .legal-main-shell{width:calc(100% - 28px);padding:28px 0 48px}
  .legal-main-shell h1{font-size:23px;margin-bottom:22px}
  .viewer-sidebar-legal .viewer-credit{margin-top:10px;padding-top:10px}
}

/* v13: stable thumbnail panel fix companions, linked credit, detail CTA, softer video marks. */
.credit-link{display:inline-flex;align-items:center;max-width:100%;color:inherit;text-decoration:none}
.credit-link:hover .credit-text{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.detail-inline-download{height:44px;min-width:164px;padding:0 22px;background:#1d1f22!important;border-color:#1d1f22!important;color:#fff!important;font-size:14px}
.detail-inline-download:hover{background:#000!important;border-color:#000!important;color:#fff!important}
.play-mark{background:rgba(18,20,22,.38)!important;color:rgba(255,255,255,.88)!important}
.folder-cell .mini-play,.thumb-option .mini-play{background:rgba(18,20,22,.38)!important;color:rgba(255,255,255,.88)!important}
@media(max-width:760px){.detail-inline-download{height:46px;min-width:0;padding:0 18px}}
@media(max-width:760px){.detail-locked-preview{min-height:54vw}.detail-locked-preview img{max-height:70vh}.detail-locked-message{bottom:12px}}

/* =========================================================
   Stable additions v14: privacy, visibility/delete controls,
   15px navigation/prices, PC top count, dark sidebar setting.
   Existing V13 styles above remain unchanged.
   ========================================================= */
.side-link,.side-link .count{font-size:15px}
.media-price,.list-price{font-size:15px}
.private-status{display:inline-flex;align-items:center;margin-left:7px;padding:1px 5px;border-radius:4px;background:#e7e7e3;color:#777b80;font-size:12px;line-height:1.45;white-space:nowrap}
.panel-item-actions .panel-visibility-select{min-width:92px;height:34px;border:1px solid #d6d7d2;border-radius:5px;background:#fafaf8;color:#383b3f;padding:0 27px 0 9px;font-size:12px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.panel-delete-button{height:34px;border:1px solid #e2c8c8;border-radius:5px;background:#fff7f7;color:#a43b3b;padding:0 10px;font-size:12px;font-family:var(--app-font);font-weight:var(--app-font-weight)}
.panel-delete-button:hover{background:#fbeaea;border-color:#dcb7b7}
.danger-outline{border-color:#e1c5c5!important;color:#a33a3a!important;background:#fff8f8!important}
.danger-outline:hover{border-color:#d8aaaa!important;background:#fbeaea!important;color:#8f2929!important}
.sidebar-theme-dialog{width:min(430px,calc(100vw - 28px))}
.sidebar-theme-dialog form{display:flex;flex-direction:column;gap:12px;padding:20px}
.sidebar-theme-dialog label{display:flex;flex-direction:column;gap:6px;color:#666a6f;font-size:12px}
.sidebar-theme-dialog select{height:38px;border:1px solid #d5d6d2;border-radius:5px;background:#fafaf8;color:#17181a;padding:0 28px 0 10px;font-size:13px;font-family:var(--app-font);font-weight:var(--app-font-weight)}

/* The configured dark treatment is intentionally limited to the sidebar/drawer. */
.sidebar-dark .sidebar{background:#1d1f22;border-right-color:#303338;color:#d9dde1}
.sidebar-dark .sidebar .brand-name{color:#f5f6f7}
.sidebar-dark .sidebar .brand-mark{background:#f4f4f2;color:#181a1d}
.sidebar-dark .sidebar .side-link{color:#b9bec4}
.sidebar-dark .sidebar .side-link::before{color:#868d95}
.sidebar-dark .sidebar .side-link:hover{background:#292c30;color:#fff}
.sidebar-dark .sidebar .side-link.is-active{background:#34373c;color:#fff}
.sidebar-dark .sidebar .side-link.is-active::before{color:#fff}
.sidebar-dark .sidebar .side-link .count{color:#8e959d}
.sidebar-dark .sidebar .sidebar-foot,.sidebar-dark .sidebar .access-settings,.sidebar-dark .sidebar .font-picker{color:#90979f}
.sidebar-dark .sidebar .text-action,.sidebar-dark .sidebar .viewer-sidebar-legal a,.sidebar-dark .sidebar .viewer-credit{color:#9da4ab}
.sidebar-dark .sidebar .text-action:hover,.sidebar-dark .sidebar .viewer-sidebar-legal a:hover,.sidebar-dark .sidebar .viewer-sidebar-legal .is-current{color:#fff}
.sidebar-dark .sidebar .viewer-sidebar-legal{border-top-color:#34373c}
.sidebar-dark .sidebar .viewer-sidebar-legal .viewer-credit{border-top-color:#34373c}
.sidebar-dark .sidebar .font-picker select,.sidebar-dark .sidebar .access-settings input{background:#26292d;border-color:#3b3f44;color:#eef0f2}
.sidebar-dark .sidebar .password-setting-row button{background:#303338;border-color:#454a50;color:#eef0f2}
.sidebar-dark .sidebar .access-settings-title{color:#e7e9eb}

@media(min-width:761px){
  body:not(.viewer-body) #topPaginationSummary{display:block;padding:0 22px 10px;text-align:left}
}
@media(max-width:760px){
  .sidebar-theme-dialog{width:calc(100vw - 24px)}
  .sidebar-theme-dialog form{padding:16px}
}


/* ================================================================
   Stable additions v15: viewer PC top count + text logo color.
   Existing rules above remain untouched.
   ================================================================ */
.brand-dialog input[type="color"]{
  width:100%;height:38px;border:1px solid #d5d6d2;border-radius:5px;
  background:#fafaf8;padding:4px 6px;cursor:pointer;
}
.brand-dialog input[type="color"]::-webkit-color-swatch-wrapper{padding:0}
.brand-dialog input[type="color"]::-webkit-color-swatch{border:0;border-radius:3px}
@media(min-width:761px){
  body.viewer-body #topPaginationSummary{
    display:block;
    padding:0 22px 10px;
    text-align:left;
  }
}

/* ===== V16: ranking / stable selection additions ===== */
.side-link[data-filter="ranking"]::before{content:"leaderboard"}
.sidebar .brand[hidden]{display:none!important}

/* ===== V26: video preview selection, existing detail UI preserved ===== */
.detail-media-column{min-width:0}
.video-preview-manager{margin-top:16px;padding:18px;border:1px solid #dedfda;border-radius:7px;background:#fff;color:#1d1f22}
.video-preview-manager-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:12px}
.video-preview-manager-head h2,.detail-video-gallery-head h2{margin:2px 0 0;font-size:19px}
.video-preview-help{max-width:680px;margin:7px 0 0;color:#777b80;font-size:12px;line-height:1.7}
.video-preview-manager-actions{display:flex;gap:8px;flex:0 0 auto}
.video-preview-notice{min-height:1.5em;margin:0 0 10px;color:#666a6f;font-size:12px}
.video-preview-picker{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.video-preview-choice{display:flex;min-width:0;flex-direction:column;gap:5px}
.video-preview-choice .thumb-option{width:100%}
.video-preview-picker .thumb-option::after{content:"";position:absolute;inset:5px auto auto 5px;width:18px;height:18px;border:1px solid rgba(255,255,255,.9);border-radius:50%;background:rgba(20,22,24,.52);box-shadow:0 1px 3px rgba(0,0,0,.18)}
.video-preview-picker .thumb-option.is-chosen::after{content:"✓";display:grid;place-items:center;border-color:var(--accent);background:var(--accent);color:#fff;font-size:12px;font-weight:700}
.video-preview-main-button{min-height:31px;padding:5px 7px;border:1px solid #d7d8d3;border-radius:4px;background:#fafaf8;color:#4f5357;font-family:var(--app-font);font-size:11px;line-height:1.35;cursor:pointer}
.video-preview-main-button:hover{border-color:#aaaead;color:#1d1f22}
.video-preview-manager-dialog{margin:12px 0 0;padding:13px;background:#fafaf8}
.video-preview-manager-dialog .video-preview-manager-head{display:block}
.video-preview-manager-dialog .video-preview-manager-actions{margin-top:10px}
.video-preview-manager-dialog .video-preview-picker{grid-template-columns:repeat(3,minmax(0,1fr));max-height:360px;overflow:auto;padding-right:3px}
.detail-video-gallery{margin-top:14px;padding-top:14px;border-top:1px solid #e1e2dd}
.detail-video-gallery-head{margin-bottom:10px}
.detail-video-gallery-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}
.detail-video-gallery-thumb{display:block;aspect-ratio:16/9;min-width:0;padding:0;overflow:hidden;border:1px solid #d9dad5;border-radius:5px;background:#e6e6e2;cursor:zoom-in}
.detail-video-gallery-thumb:hover{border-color:#979b9f}
.detail-video-gallery-thumb img{display:block;width:100%;height:100%;object-fit:cover;-webkit-user-drag:none;-webkit-touch-callout:none;user-select:none}
.detail-preview-lightbox{width:100vw;max-width:none;height:100vh;max-height:none;margin:0;padding:0;border:0;background:transparent;color:#fff}
.detail-preview-lightbox::backdrop{background:rgba(10,11,12,.9)}
.detail-preview-lightbox-inner{position:relative;display:grid;place-items:center;width:100%;height:100%;padding:50px 76px}
.detail-preview-lightbox img{max-width:100%;max-height:calc(100vh - 100px);object-fit:contain;-webkit-user-drag:none;-webkit-touch-callout:none;user-select:none}
.detail-preview-close,.detail-preview-nav{position:absolute;z-index:2;display:grid;place-items:center;border:0;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;cursor:pointer}
.detail-preview-close{top:18px;right:20px;width:42px;height:42px;font-size:27px}
.detail-preview-nav{top:50%;width:48px;height:48px;margin-top:-24px;font-size:36px}
.detail-preview-prev{left:18px}.detail-preview-next{right:18px}
.detail-preview-counter{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);font-size:13px;color:#fff}
@media(max-width:760px){
  .video-preview-manager{margin-top:12px;padding:13px}
  .video-preview-manager-head{flex-direction:column}
  .video-preview-manager-actions{width:100%}.video-preview-manager-actions button{flex:1}
  .video-preview-picker{grid-template-columns:repeat(2,minmax(0,1fr))}
  .video-preview-manager-dialog .video-preview-picker{grid-template-columns:repeat(2,minmax(0,1fr))}
  .detail-video-gallery-strip{display:flex;gap:8px;overflow-x:auto;padding-bottom:5px;scroll-snap-type:x mandatory}
  .detail-video-gallery-thumb{flex:0 0 42%;scroll-snap-align:start}
  .detail-preview-lightbox-inner{padding:58px 12px 54px}
  .detail-preview-lightbox img{max-height:calc(100vh - 112px)}
  .detail-preview-nav{top:auto;bottom:13px;width:42px;height:42px;margin:0}.detail-preview-prev{left:14px}.detail-preview-next{right:14px}
}

/* ===== V28: restore the existing front detail grid; add previews without wrapping the original UI ===== */
.viewer-body .file-detail.is-thumbnail-preview .media-stage{
  width:100%;
  height:min(405px,56.25vw);
  min-height:0;
  aspect-ratio:auto;
}
.viewer-body .file-detail.is-thumbnail-preview .media-wrap{
  width:100%;
  height:100%;
  min-height:0;
  aspect-ratio:auto;
}
.viewer-body .file-detail.is-thumbnail-preview .detail-locked-preview img{
  width:min(100%,720px);
  height:auto;
  max-height:405px;
  object-fit:contain;
}
.viewer-body .file-detail.has-video-gallery .detail-video-gallery{margin-top:10px;padding-top:0;border-top:0}
.viewer-body .file-detail.has-video-gallery .media-stage{grid-column:1;grid-row:1}
.viewer-body .file-detail.has-video-gallery .detail-video-gallery{grid-column:1;grid-row:2}
.viewer-body .file-detail.has-video-gallery .detail-info{grid-column:2;grid-row:1 / span 2}
@media(max-width:980px){
  .viewer-body .file-detail.has-video-gallery .media-stage,
  .viewer-body .file-detail.has-video-gallery .detail-video-gallery,
  .viewer-body .file-detail.has-video-gallery .detail-info{grid-column:1;grid-row:auto}
}

/* ===== V29: keep the existing detail UI; center only the compact main preview ===== */
.viewer-body .file-detail.is-thumbnail-preview .detail-locked-preview{
  width:100%;
  height:100%;
  min-height:0;
  display:grid;
  place-items:center;
}
.viewer-body .file-detail.is-thumbnail-preview .detail-locked-preview img{margin:auto}