:root{
  --bg:#f6f7f9; --surface:#ffffff; --line:#e3e6ea; --line-2:#cdd2d8;
  --text:#1b2733; --muted:#5a6672; --hint:#8a949e;
  --accent:#185fa5; --accent-text:#ffffff; --danger:#a32d2d; --success:#3b6d11;
  --radius:12px; --radius-sm:8px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;}
button{font-family:inherit;font-size:14px;cursor:pointer;border:1px solid var(--line-2);background:var(--surface);color:var(--text);border-radius:var(--radius-sm);padding:9px 14px;transition:background .12s,transform .05s;display:inline-flex;align-items:center;gap:6px;justify-content:center;}
button:hover{background:#eef1f4;}
button:active{transform:scale(.98);}
button:disabled{opacity:.5;cursor:default;}
button.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent);}
button.primary:hover{background:#13507f;}
button.danger{color:var(--danger);}
button.icon{padding:8px;width:36px;}
input,select{font-family:inherit;font-size:14px;width:100%;padding:9px 12px;border:1px solid var(--line-2);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);}
input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(24,95,165,.15);}
h1,h2,h3{font-weight:600;margin:0;}
a{color:var(--accent);}
.wrap{max-width:1040px;margin:0 auto;padding:24px 18px 60px;}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;width:100%;max-width:380px;text-align:center;}
.muted{color:var(--muted);} .hint{color:var(--hint);font-size:12px;}
.err{color:var(--danger);font-size:13px;margin:10px 0 0;display:none;}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:22px;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);background:#eef1f4;padding:4px 10px;border-radius:99px;}
.actions{display:flex;gap:6px;flex-wrap:wrap;}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;}
.tile{position:relative;aspect-ratio:1/1;border-radius:var(--radius-sm);overflow:hidden;background:#dfe3e7;cursor:pointer;}
.tile img{width:100%;height:100%;object-fit:cover;display:block;}
.tile .dl{position:absolute;top:6px;right:6px;background:rgba(0,0,0,.5);color:#fff;border:none;width:30px;height:30px;border-radius:6px;opacity:0;}
.tile:hover .dl{opacity:1;}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:20px;}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;}
.stat .n{font-size:24px;font-weight:600;margin-top:4px;}
.bar{height:7px;background:var(--line);border-radius:99px;overflow:hidden;margin-top:8px;}
.bar>div{height:100%;background:var(--accent);transition:width .2s;}
.drop{border:1.5px dashed var(--line-2);border-radius:var(--radius);padding:26px;text-align:center;margin-bottom:22px;background:var(--surface);}
.drop.over{border-color:var(--accent);background:#f0f6fc;}
.album-row{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;flex-wrap:wrap;margin-bottom:10px;}
.album-row .info{flex:1;min-width:160px;}
.album-row.hidden-album{opacity:.55;}
.empty{text-align:center;color:var(--muted);padding:40px 0;}
.link-list a{display:block;padding:8px 0;border-bottom:1px solid var(--line);text-decoration:none;}
.lb{position:fixed;inset:0;background:rgba(8,10,12,.94);z-index:50;display:none;flex-direction:column;}
.lb.open{display:flex;}
.lb-top{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;color:#e6e8ea;}
.lb-stage{flex:1;display:flex;align-items:center;justify-content:center;gap:14px;padding:0 14px 20px;}
.lb-stage img{max-width:88%;max-height:100%;object-fit:contain;border-radius:8px;}
.navb{background:rgba(255,255,255,.1);color:#fff;border:none;width:46px;height:46px;border-radius:99px;flex-shrink:0;font-size:20px;}
.navb:hover{background:rgba(255,255,255,.2);}
.modal-bg{position:fixed;inset:0;background:rgba(15,20,25,.5);z-index:60;display:none;align-items:center;justify-content:center;padding:20px;}
.modal-bg.open{display:flex;}
.modal{background:var(--surface);border-radius:var(--radius);padding:24px;width:100%;max-width:420px;text-align:left;}
.modal h3{margin-bottom:14px;} .modal label{font-size:13px;color:var(--muted);display:block;margin:12px 0 6px;}
.row-btns{display:flex;gap:8px;justify-content:flex-end;margin-top:18px;}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#1b2733;color:#fff;padding:10px 18px;border-radius:99px;font-size:13px;z-index:80;opacity:0;transition:opacity .2s;pointer-events:none;}
.toast.show{opacity:1;}
.hide{display:none !important;}
.spin{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:sp .7s linear infinite;vertical-align:-3px;}
@keyframes sp{to{transform:rotate(360deg);}}