/* Status strip + spinner come from shared css/tool.css (.tool-*) */

/* ----- Workspace Grid ----- */
.ir-workspace {
  display: grid; grid-template-columns: 1fr;
  gap: 1.25rem; margin-bottom: 1.5rem; align-items: start;
  transition: grid-template-columns 0.4s cubic-bezier(0.16,1,0.3,1);
}
.ir-workspace.split-mode { grid-template-columns: 1fr 1fr; }
@media (max-width: 768px) { .ir-workspace { grid-template-columns: 1fr; gap: 1rem; } }

/* ----- Upload Column ----- */
.ir-upload-col { display: flex; flex-direction: column; gap: 0.75rem; min-height: 100%; }

/* Dropzone */
.ir-dropzone {
  position: relative; border: 2px dashed var(--t-border);
  border-radius: var(--t-radius); padding: 3rem 2rem; text-align: center;
  cursor: pointer; transition: all 0.35s cubic-bezier(0.16,1,0.3,1);
  background: var(--t-bg);
  outline: none; overflow: hidden; flex: 1;
  display: flex; align-items: center; justify-content: center; min-height: 260px;
}
.ir-dropzone::before {
  content: ''; position: absolute; inset: -50%;
  background: none;
  opacity: 0; transition: opacity 0.5s; pointer-events: none;
}
.ir-dropzone:hover, .ir-dropzone:focus-visible {
  border-color: var(--t-accent); background: var(--t-accent-light);
  box-shadow:  0 0 0 3px var(--primary-soft);
}
.ir-dropzone:hover::before, .ir-dropzone:focus-visible::before { opacity: 1; }
.ir-dropzone.dragover {
  border-color: var(--t-accent); background: var(--t-accent-light);
  box-shadow:  0 0 0 4px var(--primary-soft);
  transform: scale(1.015);
}
.ir-dropzone.dragover .ir-drop-ring { animation: irRingPulse 0.8s ease-out infinite; }
.ir-dropzone.has-file {
  border-style: solid; border-color: var(--t-green);
  background: var(--t-green-light); box-shadow:  0 0 0 3px var(--success-soft);
  padding: 1.5rem; min-height: auto;
}
.ir-dropzone-inner { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; position: relative; z-index: 1; }
.ir-drop-icon-wrap { position: relative; width: 80px; height: 80px; display: flex; align-items: center; justify-content: center; margin-bottom: 0.25rem; }
.ir-drop-icon { font-size: 2.8rem; position: relative; z-index: 2; transition: transform 0.3s; line-height: 1; }
.ir-dropzone:hover .ir-drop-icon { transform: scale(1.1); }
.ir-drop-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--t-border); transition: all 0.3s; opacity: 0;
}
.ir-dropzone.dragover .ir-drop-ring { opacity: 1; border-color: var(--t-accent); }
@keyframes irRingPulse { 0%,100% { transform: scale(0.9); opacity: 0.6; } 50% { transform: scale(1.15); opacity: 1; } }
.ir-drop-title { font-size: 1.1rem; font-weight: 600; color: var(--text, #1a1a2e); }
.ir-drop-sub { font-size: 0.85rem; color: var(--text-secondary, #6b7280); }
.ir-drop-formats { font-size: 0.7rem; color: var(--text-tertiary, #9ca3af); margin-top: 0.25rem; }
.ir-file-hidden { display: none; }

/* File badge comes from shared css/tool.css (.tool-file-badge) */

/* ----- Config Column ----- */
.ir-config-col {
  display: flex; flex-direction: column; gap: 1rem;
  padding: 1.5rem; border-radius: var(--t-radius);
  background: var(--t-bg);
  border: 1px solid var(--border);
}

.ir-config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

/* Input Groups */
.ir-input-group { display: flex; flex-direction: column; gap: 0.35rem; }
.ir-input-label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-secondary, #6b7280); }
.ir-input-row { display: flex; align-items: center; gap: 0.4rem; }
.ir-input {
  width: 100%; padding: 0.65rem 0.85rem; border-radius: var(--t-radius-sm);
  background: var(--t-bg); border: 1px solid var(--border);
  font-size: 0.9rem; font-family: var(--t-mono); outline: none;
  transition: all 0.25s; color: var(--text, #1a1a2e);

}
.ir-input:focus { border-color: var(--t-accent); box-shadow:  0 0 0 4px var(--primary-soft); }
.ir-input-sm { width: auto; min-width: 80px; flex: 1; }
.ir-input-suffix { font-size: 0.82rem; color: var(--text-tertiary, #9ca3af); font-weight: 600; flex-shrink: 0; }

/* Controls Row */
.ir-controls-row { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }

/* Lock Button */
.ir-lock-btn {
  width: 36px; height: 36px; border-radius: 50%; border: 1.5px solid var(--t-border);
  background: var(--t-bg); color: var(--text-secondary, #6b7280);
  cursor: pointer; transition: all 0.2s; font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; padding: 0;
}
.ir-lock-btn:hover { border-color: var(--t-accent); color: var(--t-accent); }
.ir-lock-btn.active { background: var(--t-accent); color: #fff; border-color: var(--t-accent); }

/* Toggle Label */
.ir-toggle-label {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.78rem; color: var(--text-secondary, #6b7280); cursor: pointer;
  padding: 0.35rem 0.75rem; border: 1px solid var(--t-border);
  border-radius: 100px; background: var(--t-bg); transition: all 0.2s; user-select: none;
}
.ir-toggle-label:hover { border-color: var(--t-accent); color: var(--t-accent); }
.ir-toggle-label.active { background: var(--t-accent); color: #fff; border-color: var(--t-accent); }
.ir-toggle-label input { display: none; }
.ir-toggle-text { font-weight: 500; }

/* Select */
.ir-select {
  width: 100%; padding: 0.65rem 0.85rem; border-radius: var(--t-radius-sm);
  background: var(--t-bg); border: 1px solid var(--border);
  font-size: 0.9rem; font-family: var(--t-font); outline: none;
  transition: all 0.25s; color: var(--text, #1a1a2e);

  cursor: pointer;
}
.ir-select:focus { border-color: var(--t-accent); box-shadow:  0 0 0 4px var(--primary-soft); }

/* Quality */
.ir-quality-header { display: flex; align-items: center; justify-content: flex-end; margin-bottom: 0.15rem; }
.ir-quality-value { font-family: var(--t-mono); font-size: 0.8rem; font-weight: 700; color: var(--t-accent); }
.ir-slider {
  width: 100%; height: 6px; -webkit-appearance: none; appearance: none;
  background: var(--t-border); border-radius: 3px; outline: none; cursor: pointer;
}
.ir-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%;
  background: var(--t-accent); cursor: pointer; border: 2px solid #fff;
  box-shadow: 0 1px 6px rgba(0,0,0,0.15);
}
.ir-slider::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--t-accent); cursor: pointer; border: 2px solid #fff;
}

/* Action Buttons */
.ir-action-btn {
  width: 100%; padding: 0.875rem 1.5rem; border: none; border-radius: var(--t-radius-sm);
  font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.3s;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--t-font); position: relative; overflow: hidden;
}
.ir-action-btn.primary {
  background: var(--primary);
  color: #fff; box-shadow: var(--shadow-md);
}
.ir-action-btn.primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.ir-action-btn.primary:active { transform: translateY(0); }
.ir-action-btn.primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.ir-action-btn.download {
  background: var(--success);
  color: #fff; box-shadow: var(--shadow-md);
}
.ir-action-btn.download:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.ir-second-btn {
  padding: 0.45rem 0.85rem; border: 1px solid var(--t-border);
  border-radius: var(--t-radius-sm); background: var(--t-bg);
  color: var(--text-secondary, #6b7280); font-size: 0.78rem; font-weight: 500;
  cursor: pointer; transition: all 0.2s; font-family: var(--t-font);

}
.ir-second-btn:hover { border-color: var(--t-accent); color: var(--t-accent); background: var(--t-accent-light); }

/* ----- Results / Preview ----- */
.ir-results { margin-top: 2rem; }
.ir-preview-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
@media (max-width: 600px) { .ir-preview-grid { grid-template-columns: 1fr; } }
.ir-preview-card {
  background: var(--t-bg-card);
  border: 1px solid var(--border); border-radius: var(--t-radius-sm); overflow: hidden;
}
.ir-preview-card-header {
  padding: 0.5rem 0.75rem; background: var(--bg-soft);
  border-bottom: 1px solid var(--t-border); font-size: 0.72rem; font-weight: 700;
  color: var(--text-tertiary, #9ca3af); text-transform: uppercase; letter-spacing: 0.04em;
}
.ir-preview-img-wrap {
  display: flex; align-items: center; justify-content: center;
  padding: 0.75rem; min-height: 180px;
  background: repeating-conic-gradient(rgba(0,0,0,0.04) 0% 25%, transparent 0% 50%) 50% / 16px 16px;
}
.ir-preview-img-wrap img { max-width: 100%; max-height: 300px; object-fit: contain; border-radius: 3px; }
.ir-preview-info {
  padding: 0.45rem 0.75rem; font-size: 0.7rem; color: var(--text-secondary, #6b7280);
  font-family: var(--t-mono); border-top: 1px solid var(--t-border);
  display: flex; gap: 0.75rem; flex-wrap: wrap;
}
.ir-preview-info .ir-dim { color: var(--t-accent); font-weight: 600; }
.ir-preview-info .ir-size { color: var(--t-green); font-weight: 600; }

/* Download Row */
.ir-download-row { text-align: center; margin-top: 1.5rem; }
.ir-download-row .ir-action-btn.download { width: auto; display: inline-flex; padding: 0.75rem 2rem; }

/* Shake Animation */
.ir-shake { animation: irShake 0.5s ease; }
@keyframes irShake { 0%,100% { transform: translateX(0); } 10%,30%,50%,70%,90% { transform: translateX(-4px); } 20%,40%,60%,80% { transform: translateX(4px); } }

/* ----- Toast ----- */
.ir-toast-container {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%);
  z-index: 9999; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; pointer-events: none;
}
.ir-toast {
  padding: 0.75rem 1.5rem; border-radius: 100px;
  background: var(--t-bg-card);
  border: 1px solid var(--border); font-size: 0.85rem; font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12); color: var(--text, #1a1a2e);
  pointer-events: auto; opacity: 0; transform: translateY(10px);
  transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
  display: flex; align-items: center; gap: 0.5rem; white-space: nowrap;
}
.ir-toast.show { opacity: 1; transform: translateY(0); }
.ir-toast.error { border-color: var(--danger-soft); color: var(--t-red); }
.ir-toast.success { border-color: var(--success-soft); color: var(--t-green); }

/* ----- Responsive ----- */
@media (max-width: 900px) {
  .ir-workspace.split-mode { grid-template-columns: 1fr; }
  .ir-config-grid { grid-template-columns: 1fr; }
  .ir-preview-grid { gap: 0.75rem; }
}
@media (max-width: 768px) {
  .ir-workspace { gap: 1rem; }
  .ir-dropzone { padding: 2rem 1.25rem; min-height: 200px; }
  .ir-config-col { padding: 1.25rem; gap: 0.875rem; }
}
@media (max-width: 480px) {
  .ir-drop-title { font-size: 0.95rem; }
  .ir-drop-icon { font-size: 2.2rem; }
  .ir-drop-icon-wrap { width: 60px; height: 60px; }
  .ir-input { font-size: 16px; }
  .ir-action-btn { font-size: 0.9rem; padding: 0.75rem 1rem; }
  .ir-toast-container { bottom: 1rem; left: 1rem; right: 1rem; transform: none; }
  .ir-toast { white-space: normal; text-align: center; border-radius: var(--t-radius-sm); }
  .ir-controls-row { gap: 0.4rem; }
}