.preview{display:flex;align-items:center;justify-content:center;min-height:240px;border-radius:16px;background:rgba(255,255,255,.05);color:#aaa;text-align:center;padding:16px}
.fmt{display:flex;gap:8px;margin:12px 0}
.fmt button{padding:8px 16px;border-radius:999px;background:#222;color:#fff;cursor:pointer}
.fmt button.on{background:#7c5cff}
#prompt{width:100%;padding:12px;border-radius:12px;background:#222;color:#fff;border:0;margin-bottom:8px;resize:vertical}
#refImage{color:#bbb;margin-bottom:12px;max-width:100%}
.gen{display:inline-block;padding:10px 20px;border-radius:12px;background:#7c5cff;color:#fff;cursor:pointer;text-decoration:none}
.gen:disabled{opacity:.5;cursor:wait}
.dl{margin-top:12px}
.bar{height:8px;border-radius:8px;background:rgba(255,255,255,.08);margin:16px 0 8px;overflow:hidden}
#barFill{height:100%;width:0;background:#7c5cff;transition:width .4s}
.stages{list-style:none;color:#999;font-size:14px}
.stages li{padding:3px 0}
.stages li.done{color:#7cffb0}
.stages li.run{color:#fff}
.tag{font-size:12px;opacity:.7;margin-left:6px}
.heart{cursor:pointer;margin-left:auto}

.slots{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin-bottom:12px}
.slot{position:relative;aspect-ratio:3/4;border-radius:12px;background:#222;border:2px dashed #555;display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;color:#bbb;cursor:pointer;overflow:hidden;padding:6px}
.slot.has{border:2px solid #7c5cff;padding:0}
.slot img{width:100%;height:100%;object-fit:cover}
.slot input{display:none}
.slot b{position:absolute;left:0;right:0;bottom:0;background:rgba(0,0,0,.6);font-weight:500;padding:2px}

/* Cố định thanh menu, không cuộn mất khi trang dài */
@media (min-width:651px){
  .container{align-items:flex-start}
  .sidebar{position:sticky;top:0;height:100vh;align-self:flex-start;overflow-y:auto}
}
/* Khung xem trước đứng yên, không nhảy khi form dài ra */
.player{align-items:flex-start}
.cover{position:sticky;top:35px;aspect-ratio:auto;height:460px}
.preview{height:100%;min-height:0}
.preview img{width:100%;height:100%;object-fit:contain}
.info{flex:1;min-width:0}
.status{min-height:1.4em;margin-top:10px;color:#9fe3b5;font-size:14px}
.status.bad{color:#ff9a9a}
@media (max-width:900px){.cover{position:static;height:340px}}
.info p.status{font-size:14px;margin:10px 0 0;line-height:1.4}