textarea {
  width: 100%;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font: inherit;
  font-size: 0.9375rem;
  padding: 14px 16px;
  resize: vertical;
  min-height: 220px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea:focus {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 22%, transparent);
}

.file-input {
  width: 100%;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font: inherit;
  font-size: 0.9375rem;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.file-input:focus {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 22%, transparent);
}

.file-input--hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  border: 0;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.drop-zone {
  margin-top: 8px;
  padding: 24px 16px;
  border: 2px dashed var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.drop-zone:hover,
.drop-zone:focus {
  border-color: var(--md-sys-color-primary);
  background: color-mix(in srgb, var(--md-sys-color-primary-container) 50%, white);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-sys-color-primary) 14%, transparent);
  outline: none;
}

.drop-zone.is-dragover {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary-container);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--md-sys-color-primary) 18%, transparent);
}

.drop-zone__icon {
  display: block;
  margin-bottom: 8px;
  font-size: 36px;
  color: var(--md-sys-color-primary);
}

.drop-zone__title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
}

.drop-zone__desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
}

.selected-file-name {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-size: 0.875rem;
  line-height: 1.4;
  word-break: break-all;
}

.image-preview {
  margin-top: 16px;
  padding: 14px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface);
}

.image-preview img {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 8px;
}

.btn:disabled {
  opacity: 0.65;
}

.tool-status {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: var(--md-sys-shape-corner-medium);
  background: color-mix(in srgb, var(--success) 8%, var(--md-sys-color-surface));
  border: 1px solid color-mix(in srgb, var(--success) 25%, var(--md-sys-color-outline-variant));
  color: var(--success);
  font-size: 0.875rem;
}