:root { --bg:#fff; --fg:#111; --muted:#666; --line:#e5e5e5; --accent:#111; }
* { box-sizing:border-box; }
html,body { height:100%; }
body {
  margin:0; background:var(--bg); color:var(--fg);
  font-family:"Noto Sans", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.5;
}
.topbar {
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 20px; border-bottom:1px solid var(--line);
}
.topbar h1 { margin:0; font-size:20px; font-weight:800; letter-spacing:.3px; }
.beta { font-size:12px; padding:4px 8px; border:1px solid var(--line); border-radius:999px; color:var(--muted); }
.container { max-width:1200px; margin:0 auto; padding:20px; display:grid; gap:20px; grid-template-columns: 380px 1fr; }
.inputs .input-group { margin-bottom:16px; }
.label { font-weight:600; display:block; margin-bottom:6px; }
.row { display:flex; gap:8px; }
input[type="url"], input[type="text"], input[type="file"], select {
  width:100%; padding:10px 12px; border:1px solid var(--line); border-radius:8px; background:#fff; color:var(--fg);
}
.btn {
  padding:10px 14px; border:1px solid var(--line); background:#fff; color:var(--accent);
  border-radius:8px; cursor:pointer; transition:transform .06s ease, box-shadow .12s ease, background .2s;
}
.btn:hover { background:#f7f7f7; }
.hint { margin:6px 0 0; font-size:12px; color:var(--muted); }
.dropzone {
  border:2px dashed var(--line); border-radius:12px; padding:28px; text-align:center; color:var(--muted);
  transition: border-color .2s, background .2s;
}
.dropzone.dragover { border-color:#000; background:#fafafa; color:#000; }
.controls { display:grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap:12px; margin-top:14px; }
.control { display:flex; align-items:center; gap:10px; }
.control label { min-width:84px; }
.checkbox { display:flex; align-items:center; gap:8px; }
.workspace { display:grid; grid-template-columns: 1fr 1fr; gap:20px; align-items:start; }
.preview {
  border:1px solid var(--line); border-radius:12px; padding:12px; display:flex; align-items:center; justify-content:center; min-height:320px;
}
#image, #video, #canvas { max-width:100%; max-height:60vh; }
.hidden { display:none; }
.ascii-panel { border:1px solid var(--line); border-radius:12px; display:flex; flex-direction:column; min-height:320px; }
.ascii-toolbar { display:flex; gap:8px; padding:10px; border-bottom:1px solid var(--line); align-items:center; }
.spacer { flex:1; }
.ascii {
  margin:0; padding:12px; white-space:pre; font-family: "Space Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size:10px; line-height:10px; overflow:auto; background:#fff; color:#000; border-bottom-left-radius:12px; border-bottom-right-radius:12px;
}
.footer { padding:16px 20px; border-top:1px solid var(--line); color:var(--muted); text-align:center; }
@media (max-width: 980px) {
  .container { grid-template-columns: 1fr; }
  .workspace { grid-template-columns: 1fr; }
}