/* --- Drop Zone --- */
.drop-zone {
  position: relative;
  border: 2px dashed var(--dropzone-border);
  border-radius: 20px;
  background: var(--dropzone-bg);
  transition: all 0.3s ease;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 220px;
  max-height: 300px;
}
.drop-zone:hover {
  border-color: var(--accent);
  background: var(--dropzone-active-bg);
}
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--dropzone-active-bg);
  border-style: solid;
}
.file-input {
  display: none;
}
.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem;
  text-align: center;
  pointer-events: none;
}
.upload-icon {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.drop-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-title);
  margin: 0;
}
.drop-or {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.drop-zone-content .btn {
  pointer-events: auto;
  margin-top: 0.5rem;
}
.drop-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}
/* --- Preview Section --- */
.preview-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}
.canvas-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
/* --- Poster Canvas --- */
.poster-canvas {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid var(--glass-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  max-height: calc(100vh - 200px);
  overflow: hidden;
}
/* --- Card Canvas (live preview) --- */
.card-canvas {
  position: relative;
  width: 100%;
  max-width: min(100%, 460px);
  max-height: calc(100vh - 280px);
  aspect-ratio: 4 / 5;
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
  background: var(--surface-card);
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.card-canvas img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: center center;
}
/* --- Canvas Action Buttons --- */
.canvas-controls {
  display: flex;
  gap: 1rem;
  width: 100%;
  max-width: min(100%, 460px);
}
.canvas-controls .btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
}
.canvas-controls .btn-primary,
.drop-zone-content .btn-primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
}
.canvas-controls .btn-primary:hover,
.drop-zone-content .btn-primary:hover {
  background: var(--accent-hover);
}
.canvas-controls .btn-secondary {
  background: var(--surface-card);
  color: var(--text-title);
  border: 1px solid var(--glass-border);
}
.canvas-controls .btn-secondary:hover {
  background: var(--surface-overlay);
  border-color: var(--text-muted);
}
/* --- Mobile --- */
@media (max-width: 480px) {
  .tool-card { padding: 1.25rem; }
  .drop-zone { min-height: 220px; }
  .card-canvas { max-width: 240px; }
  .canvas-controls { flex-direction: column; }
  .controls-panel { gap: 1rem; }
  .control-group { padding: 0.875rem; }
  .control-group-title { font-size: 0.7rem; margin-bottom: 0.5rem; }
  .control-label { font-size: 0.8rem; }
  .pill { font-size: 0.7rem; padding: 3px 8px; }
}