.decode-upload {
  border: 2px dashed var(--light-gray);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}
.decode-upload:hover {
  border-color: var(--primary);
}
.decode-upload.dragover {
  border-color: var(--primary);
  background: var(--primary-bg);
}
.decode-upload .icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: .5;
}
.decode-upload .title {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
}
.decode-upload .tip {
  font-size: 13px;
  color: var(--gray);
}
.decode-upload .paste-tip {
  margin-top: 8px;
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-bg);
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
}
.decode-upload .loading {
  font-size: 14px;
  color: var(--primary);
  margin-top: 10px;
}

.result-box {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-radius: 12px;
  padding: 20px;
  border: 1.5px solid #bbf7d0;
}
.result-box.error {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border-color: #fecaca;
}
.result-label {
  font-size: 12px;
  color: var(--gray);
  margin-bottom: 8px;
  font-weight: 500;
}
.result-text {
  font-size: 14px;
  color: var(--dark);
  word-break: break-all;
  line-height: 1.6;
  background: #fff;
  padding: 12px;
  border-radius: 8px;
  max-height: 200px;
  overflow-y: auto;
}
.result-empty {
  color: var(--gray);
  text-align: center;
  padding: 20px 0;
  font-size: 13px;
}

.camera-container {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  min-height: 300px;
}
.camera-switch-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,0,0,.6);
  color: #fff;
  border: none;
  font-size: 18px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}
.camera-switch-btn:hover {
  background: rgba(0,0,0,.8);
}
#qr-reader {
  width: 100% !important;
  border: none !important;
}
#qr-reader video {
  width: 100% !important;
  border-radius: 12px;
}
#qr-reader__dashboard {
  display: none !important;
}
#qr-reader__status_span {
  display: none !important;
}
#qr-reader__header_message {
  display: none !important;
}
#qr-reader img[alt="Info icon"] {
  display: none !important;
}

.tab-group {
  display: flex;
  gap: 4px;
  background: var(--bg);
  padding: 4px;
  border-radius: 10px;
  margin-bottom: 16px;
}
.tab-btn {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray);
  transition: all .2s;
}
.tab-btn.active {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}

.decode-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.decode-actions .btn {
  flex: 1;
  justify-content: center;
  min-width: 100px;
}

.history-item .h-text {
  color: var(--dark);
}
.history-item {
  position: relative;
}
.history-item .h-del {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--danger);
  color: #fff;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  cursor: pointer;
  display: none;
  z-index: 2;
}
.history-item:hover .h-del {
  display: block;
}

.scan-success {
  animation: successPulse .3s ease-out;
}
@keyframes successPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@media (max-width: 600px) {
  .decode-upload { padding: 24px 16px; }
  .decode-upload .icon { font-size: 36px; }
  .tab-btn { padding: 8px; font-size: 12px; }
}