:root { --bg:#0b0c10; --card:#11131a; --txt:#e8ecff; --muted:#a9b1d6; --br:#232741; --btn:#1a1f35; --btn2:#1f2642; --pri:#3b82f6; }
*{ box-sizing:border-box; }
html, body{ overflow-x:hidden; }
body{ margin:0; font-family:system-ui, -apple-system, Segoe UI, Roboto, Arial; background:var(--bg); color:var(--txt); }
header{ display:none; }
main{ padding:16px 18px 28px; max-width:1200px; margin:0 auto; }
footer{ display:none; }
.card{ background:var(--card); border:1px solid var(--br); border-radius:14px; padding:14px; margin-bottom:14px; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.row{ display:flex; gap:14px; align-items:center; }
.wrap{ flex-wrap:wrap; }
.col{ display:flex; flex-direction:column; gap:6px; min-width:180px; }
label{ font-size:12px; color:var(--muted); }
input, select{ background:#0f1220; color:var(--txt); border:1px solid var(--br); border-radius:10px; padding:10px; outline:none; }
input:focus, select:focus{ border-color:#3a4aa2; }
.btn{ display:inline-flex; align-items:center; justify-content:center; padding:10px 12px; border-radius:10px; background:var(--btn); border:1px solid var(--br); cursor:pointer; user-select:none; }
.btn:hover{ filter:brightness(1.08); }
.btn2{ padding:10px 12px; border-radius:10px; background:var(--btn2); border:1px solid var(--br); color:var(--txt); cursor:pointer; }
.btn2.primary{ background:rgba(59,130,246,.18); border-color:rgba(59,130,246,.55); }
.btn2:hover{ filter:brightness(1.08); }
.muted{ color:var(--muted); font-size:12px; }
.small{ font-size:11px; }
.grid2{ display:grid; grid-template-columns: 1fr 420px; gap:14px; }
@media (max-width: 980px){ .grid2{ grid-template-columns: 1fr; } }
.canvasWrap{ position:relative; overflow:auto; border-radius:12px; border:1px solid var(--br); background:#0a0b10; max-height:70vh; cursor: default; }
.canvasWrap.dragging{ cursor: grabbing; }
.canvasWrap.rectMode{ cursor: crosshair; }
canvas{ display:block; }

.segPopup{
  position:absolute;
  z-index: 5;
  background: rgba(17,19,26,.92);
  border: 1px solid var(--br);
  border-radius: 12px;
  padding: 10px;
  min-width: 140px;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.segPopup.hidden{ display:none; }
.segPopup input{
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
}
.segPopupHint{ margin-top:6px; font-size:11px; color: var(--muted); }

.seg{ display:flex; gap:6px; flex-wrap:wrap; }
.segbtn{ padding:8px 10px; border-radius:10px; background:#0f1220; border:1px solid var(--br); color:var(--txt); cursor:pointer; font-size:12px; }
.segbtn.active{ border-color: rgba(59,130,246,.65); background: rgba(59,130,246,.12); }
.chk{ display:flex; align-items:center; gap:8px; padding:10px 0 0; color:var(--muted); font-size:12px; }

.dropzone{
  border:1px dashed rgba(169,177,214,.55);
  background: rgba(15,18,32,.6);
  border-radius: 14px;
  padding: 14px;
  cursor: pointer;
  user-select: none;
  min-height: 76px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:6px;
}
.dropzone:hover{ filter: brightness(1.08); }
.dropzone.dragover{
  border-color: rgba(59,130,246,.75);
  background: rgba(59,130,246,.10);
}
.dzTitle{ font-size: 13px; color: var(--txt); }
.dzSub{ font-size: 12px; color: var(--muted); }

.thumbs{ padding-right: 12px; 
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:10px;
  padding:8px 0 4px;
  max-height: 330px; /* ~3 rows */
  overflow:auto;
  scrollbar-gutter: stable both-edges;
  box-sizing: border-box;
  padding-right: 14px;
}
.thumb{
  border:1px solid var(--br);
  border-radius:12px;
  overflow:hidden;
  background:#0a0b10;
  cursor:pointer;
  user-select:none;
}
.thumb img{ display:block; width:100%; height:auto; }
.thumb .tlabel{
  font-size:11px;
  color:var(--muted);
  padding:6px 8px;
  border-top:1px solid var(--br);
}
.thumb.active{ border-color: rgba(59,130,246,.75); box-shadow: 0 0 0 2px rgba(59,130,246,.15) inset; }
.thumb.hasSettings{ border-color: rgba(34,197,94,.65); }
.thumb.hasSettings .tlabel::after{ content:"•"; margin-left:6px; color: rgba(34,197,94,.9); }

.formGrid{
  display:grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap:10px;
}
.field{ display:flex; flex-direction:column; gap:6px; }
@media (max-width: 980px){
  .formGrid{ grid-template-columns: 1fr; }
}

/* --- New layout: viewer left, controls right --- */
main{
  padding: 12px 12px 18px;
  max-width: none;
  margin: 0;
}
.layout{
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 12px;
  align-items: start;
}
.viewer{
  min-width: 0;
  height: calc(100vh - 24px);
  display: flex;
  flex-direction: column;
}
.sidebar{
  min-width: 0;
  position: sticky;
  top: 12px;
  height: calc(100vh - 24px);
  overflow: auto;
  overflow-x: hidden;
  /* Reserve space for scrollbar so it doesn't overlap content */
  scrollbar-gutter: stable both-edges;
  box-sizing: border-box;
  padding-right: 30px;
}

.canvasWrap{
  height: 100%;
  max-height: none;
  overflow: auto;
  width: 100%;
}
@media (max-width: 980px){
  .layout{ grid-template-columns: 1fr; }
  .sidebar{ position: static; height: auto; }
  .viewer{ height: auto; }
}

.sidebar *{ max-width:100%; }


.colorRow{ display:flex; align-items:center; gap:10px; }
.colorCurrentWrap{ position:relative; width:34px; height:34px; flex:0 0 auto; }
.colorCurrentWrap .colorCurrent{ position:absolute; inset:0; pointer-events:none; }
.colorAnyOverlay{ position:absolute; inset:0; width:100%; height:100%; padding:0; border:0; background:transparent; opacity:0; cursor:pointer; }
.colorCurrent{ width:34px; height:34px; border-radius:10px; border:1px solid var(--br); background:#ff0000; cursor:pointer; }
.colorPalette{
  display:grid;
  grid-template-columns: repeat(3, 18px);
  gap:6px;
  align-content:start;
}
.colorSwatch{ width:18px; height:18px; border-radius:6px; border:1px solid var(--br); cursor:pointer; }
.colorSwatch.active{ outline:2px solid rgba(59,130,246,.7); }
.colorPalette.pulse{ outline:2px solid rgba(59,130,246,.55); outline-offset:6px; border-radius:10px; }

/* file input is visually hidden, but remains usable via JS click() */
.fileInput{
  position:absolute;
  width:1px;
  height:1px;
  opacity:0;
  pointer-events:auto;
}
.dropzoneLeft{
  position:absolute;
  inset:0;
  z-index:3;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:6px;
  text-align:center;
  padding:18px;
  border:1px dashed rgba(169,177,214,.45);
  border-radius:14px;
  background:rgba(15,18,32,.65);
}
.dropzoneLeft.hidden{ display:none; }
.viewer .dropzoneLeft:hover{ filter:brightness(1.06); }