.image-tool-main{
  padding:0;
}

.img-tool{
  display:grid;
  grid-template-columns:minmax(300px, 380px) 1fr;
  gap:16px;
  align-items:start;
  grid-template-areas:"controls preview";
}

.img-tool__controls,
.img-tool__preview{
  border-radius:16px;
  border:1px solid #e2e8f0;
  background:#fff;
  box-shadow:0 8px 28px rgba(15, 23, 42, 0.06);
}

.img-tool__controls{
  padding:18px;
  grid-area:controls;
  max-height:calc(100vh - 120px);
  overflow:auto;
}

.img-tool__controls h2{
  margin:0 0 4px;
  font-size:1.05rem;
  font-weight:800;
  color:var(--site-primary, #1e3c72);
  letter-spacing:-0.01em;
}

.img-tool__subtitle{
  margin:0 0 14px;
  color:var(--site-muted, #64748b);
  font-size:13px;
  line-height:1.45;
}

.img-tool__dropzone{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  text-align:center;
  border:2px dashed #cbd5e1;
  background:linear-gradient(180deg, #f8fafc, #fff);
  border-radius:14px;
  padding:18px 14px;
  cursor:pointer;
  transition:border-color .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.img-tool__dropzone strong{
  font-size:14px;
  color:var(--site-primary, #1e3c72);
}

.img-tool__dropzone span{
  font-size:12px;
  color:var(--site-muted, #64748b);
}

.img-tool__dropzone:hover,
.img-tool__dropzone.is-active{
  border-color:#3b82f6;
  background:#eff6ff;
  box-shadow:0 0 0 3px rgba(59, 130, 246, 0.12);
}

.img-tool__meta{
  margin-top:10px;
  padding:8px 10px;
  border-radius:10px;
  background:#f1f5f9;
  font-size:12px;
  font-weight:600;
  color:#334155;
  line-height:1.4;
}

.img-tool__group{
  margin-top:14px;
  padding:14px;
  border-radius:12px;
  border:1px solid #e8edf4;
  background:#fafbfc;
}

.img-tool__group-title{
  font-weight:800;
  font-size:12px;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--site-primary, #1e3c72);
  margin-bottom:10px;
}

.img-tool__presets{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom:8px;
}

.img-tool__preset-btn{
  flex:1 1 calc(50% - 6px);
  min-width:0;
  padding:8px 10px !important;
  font-size:11px !important;
  font-weight:700 !important;
  background:#fff !important;
  color:#1e3a8a !important;
  border-color:#bfdbfe !important;
}

.img-tool__preset-btn:hover{
  background:#eff6ff !important;
}

.img-tool__row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:8px;
}

.img-tool__row label{
  flex:1 1 120px;
  font-size:12px;
  font-weight:600;
  color:#334155;
}

.img-tool input,
.img-tool select,
.img-tool button{
  width:100%;
  margin-top:6px;
  border-radius:10px;
  border:1px solid #cbd5e1;
  padding:10px 12px;
  font-size:13px;
  font-family:inherit;
  transition:background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.img-tool input:focus,
.img-tool select:focus{
  outline:none;
  border-color:#3b82f6;
  box-shadow:0 0 0 3px rgba(59, 130, 246, 0.15);
}

.img-tool button{
  background:#1e3c72;
  color:#fff;
  border-color:#1e3c72;
  font-weight:700;
  cursor:pointer;
}

.img-tool button:hover{
  background:#2a5298;
  border-color:#2a5298;
}

.img-tool button.is-active,
.img-tool__pct-btn.is-active{
  background:#2563eb !important;
  border-color:#2563eb !important;
}

.img-tool__checkbox{
  display:flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}

.img-tool__checkbox input{
  width:auto;
  margin-top:0;
  padding:0;
}

.img-tool__grow{
  flex:1 1 100%;
}

.img-tool__preview{
  padding:16px;
  grid-area:preview;
  position:sticky;
  top:12px;
}

.img-tool__canvas-wrap{
  position:relative;
  height:min(72vh, 600px);
  border-radius:14px;
  border:1px solid #1e293b;
  background:
    linear-gradient(45deg, #1e293b 25%, #0f172a 25%, #0f172a 50%, #1e293b 50%, #1e293b 75%, #0f172a 75%, #0f172a);
  background-size:16px 16px;
  overflow:hidden;
  cursor:grab;
  touch-action:none;
}

.img-tool__canvas-wrap.is-dragging{
  cursor:grabbing;
}

.img-tool__loading{
  position:absolute;
  inset:0;
  z-index:2;
  display:grid;
  place-items:center;
  background:rgba(15, 23, 42, 0.55);
  color:#fff;
  font-size:14px;
  font-weight:600;
  opacity:1;
  pointer-events:all;
  transition:opacity .2s ease;
}

.img-tool__loading.hidden{
  opacity:0;
  pointer-events:none;
}

#previewCanvas{
  display:block;
  width:100%;
  height:100%;
}

.img-tool__viewport-grid{
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px) 0 0/100% 33.33%,
    linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px) 0 0/33.33% 100%;
  box-shadow:inset 0 0 0 9999px rgba(2, 6, 23, 0.22);
}

.img-tool__pct-btn{
  background:#334155 !important;
  flex:1;
}

#downloadBtn{
  margin-top:12px;
  padding:13px 16px;
  font-size:14px;
  background:linear-gradient(135deg, #059669, #10b981) !important;
  border-color:#059669 !important;
  box-shadow:0 4px 14px rgba(16, 185, 129, 0.28);
}

#downloadBtn:hover{
  background:linear-gradient(135deg, #047857, #059669) !important;
}

@media (max-width: 1024px){
  .img-tool{
    grid-template-columns:1fr;
    grid-template-areas:"preview" "controls";
  }

  .img-tool__preview{
    position:static;
  }

  .img-tool__controls{
    max-height:none;
  }

  .img-tool__canvas-wrap{
    height:min(52vh, 400px);
  }
}