:root{
  --bg:#0b1220;
  --card:#0f1724;
  --muted:#94a3b8;
  --accent:#60a5fa;
  --glass: rgba(255,255,255,0.04);
  --danger:#ef4444;
}
input[type="text"]::placeholder {
    /* Firefox, Chrome, Opera */
    text-align: center;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Arial;background:var(--bg);color:#e6eef8}
.site-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:linear-gradient(90deg,#071024,#0b1628);box-shadow:0 2px 12px rgba(0,0,0,0.6)}
.site-header h1{margin:0;font-size:18px;font-weight:600}

.container{max-width:1200px;margin:18px auto;padding:0 20px}
.top-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px;text-align:center;justify-content:center;}
.top-row label{display:flex;flex-direction:column;font-size:13px;color:var(--muted)}
.top-row input{margin-top:6px;padding:8px 10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:var(--card);color:#e6eef8;outline:none}

.actions-row{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.drop{flex:1;padding:18px;border-radius:10px;border:2px dashed rgba(255,255,255,0.04);background:var(--glass);text-align:center;color:var(--muted);cursor:pointer}
.drop.dragover{background:rgba(96,165,250,0.06);border-color:var(--accent);color:var(--accent)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(500px,1fr));gap:18px}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border-radius:12px;padding:14px;padding-right:25px;border:1px solid rgba(255,255,255,0.03);box-shadow:0 6px 30px rgba(0,0,0,0.5);display:flex;gap:12px;align-items:flex-start}
.preview-canvas{width:240px;height:240px;border-radius:8px;background:#fff;overflow:hidden;flex-shrink:0;border:1px solid rgba(0,0,0,0.06)}
.card .controls{flex:1;display:flex;flex-direction:column;gap:8px}
.filename{width:100%;padding:8px;border-radius:8px;border:1px solid rgba(255,255,255,0.03);background:transparent;color:#e6eef8}
.small-label{font-size:12px;color:var(--muted);margin-bottom:6px}
.range{width:100%}

.row-actions{display:contents;gap:8px}
.btn{padding:8px 12px;border-radius:8px;border:0;background:var(--accent);color:#04263b;font-weight:600;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--muted)}
.btn.danger{background:var(--danger);color:#fff}
.btn.danger.ghost{background:transparent;border-color:rgba(239,68,68,0.18);color:var(--danger)}

@media (max-width:720px){
  .preview-canvas{width:160px;height:160px}
  .card{flex-direction:column;align-items:center}
  .top-row{gap:8px}
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
}