/* ====== Root Variables ====== */
:root {
  --primary-color: #4361ee;
  --primary-dark: #3a56d4;
  --accent-color: #4895ef;
  --light-color: #f8f9fa;
  --dark-color: #212529;
  --gray-color: #6c757d;
  --light-gray: #e9ecef;
  --success-color: #4bb543;
  --error-color: #ff3333;
  --border-radius: 8px;
  --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --box-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  --transition: all 0.2s ease;
}

/* ====== Main Container ====== */
.mainsec {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
}

.maincont h1 {
  font-size: 1.5rem;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 0.5rem;
}

.headsupport {
  text-align: center;
  color: var(--gray-color);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* ====== Upload Section ====== */
.upload-section {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
  margin-bottom: 1rem;
}

.upload-container {
  padding: 1rem;
  cursor: pointer;
}

.upload-box {
  border: 2px dashed var(--primary-color);
  border-radius: var(--border-radius);
  padding: 1.5rem 1rem;
  text-align: center;
  background-color: rgba(67, 97, 238, 0.03);
  transition: var(--transition);
}

.upload-box:hover {
  background-color: rgba(67, 97, 238, 0.06);
}

.svgUpload {
  width: 80px;
  height: 80px;
  margin-bottom: 0.5rem;
}

.btnsel {
  color: var(--primary-color);
  font-weight: 600;
}

.supported-formats {
  font-size: 0.75rem;
  color: var(--gray-color);
  text-align: center;
  margin-top: 0.5rem;
}

/* ====== Compression Options ====== */
.compression-options {
  padding: 1rem;
  background: white;
  border-top: 1px solid var(--light-gray);
}

.compression-options label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  color: var(--dark-color);
}

.option-row {
  display: flex;
  gap: 0.5rem;
}

#targetSize {
  flex: 1;
  max-width: 80px;
  padding: 0.5rem;
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius);
}

.kbinput {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  color: var(--gray-color);
}

#compressBtn {
  padding: 0.5rem 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  flex: 1;
  max-width: 120px;
}

#compressBtn:hover:not(:disabled) {
  background-color: var(--primary-dark);
}

#compressBtn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ====== Loading Indicator ====== */
#loadingIndicator {
  padding: 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--primary-color);
  display: none;
}

/* ====== Preview Container ====== */
#previewContainer {
  padding: 0 1rem 1rem;
}

.preview-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 0.75rem;
}

.preview-image {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 4px;
}

.preview-info {
  flex: 1;
  min-width: 0;
}

.preview-name {
  font-weight: 500;
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preview-stats {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--gray-color);
  margin-top: 0.25rem;
}

.preview-actions {
  display: flex;
  gap: 0.5rem;
}

.download-btn,
.remove-btn {
  padding: 0.4rem 0.8rem;
  border: none;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.download-btn {
  background: var(--success-color);
  color: white;
}

.remove-btn {
  background: var(--error-color);
  color: white;
}

/* ====== Ad Container ====== */
.ads-container {
  padding: 1rem;
  background: white;
  border-top: 1px solid var(--light-gray);
  position: relative;
}

.ads-container::before {
  content: "Advertisement";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  color: var(--gray-color);
}

/* ====== Responsive Adjustments ====== */
@media (max-width: 600px) {
  .mainsec {
    padding: 0.5rem;
  }
  
  .maincont h1 {
    font-size: 1.3rem;
  }
  
  .upload-box {
    padding: 1rem;
  }
  
  .svgUpload {
    width: 60px;
    height: 60px;
  }
  
  .option-row {
    flex-wrap: wrap;
  }
  
  #targetSize {
    max-width: 60px;
  }
  
  #compressBtn {
    max-width: 100%;
  }
  
  .preview-item {
    flex-direction: column;
    text-align: center;
  }
  
  .preview-info {
    width: 100%;
  }
  
  .preview-stats {
    justify-content: center;
  }
  
  .preview-actions {
    width: 100%;
    justify-content: center;
  }
}

/* ====== Viewport Height Optimization ====== */
@media (max-height: 700px) {
  .upload-section {
    margin-bottom: 0.5rem;
  }
  
  .upload-box {
    padding: 1rem;
  }
  
  .compression-options {
    padding: 0.75rem 1rem;
  }
  
  #previewContainer {
    max-height: 200px;
    overflow-y: auto;
  }
  
  .preview-item {
    padding: 0.5rem;
  }
}  text-align: center;
  margin-top: 0.75rem;
}

/* Compression Options - Compact */
.compression-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1.5rem;
}

.option-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.option-row label {
  font-size: 0.85rem;
  white-space: nowrap;
}

#formatSelect {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  flex: 1;
}

.target-size-group {
  display: flex;
  gap: 0.5rem;
  flex: 1;
}

#targetSize {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  width: 80px;
}

#compressBtn {
  padding: 0.4rem 0.8rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

#compressBtn:hover:not(:disabled) {
  background-color: var(--primary-dark);
}

#compressBtn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Larger Ad Space */
.ads-container {
  background: white;
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-color);
  border-bottom: 1px solid var(--light-gray);
  position: relative;
}

.ads-container::before {
  content: "Advertisement";
  font-size: 0.8rem;
  color: var(--gray-color);
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
}

/* Preview Section - Wider */
.preview-section {
  scroll-margin-top: 20px;
}

#previewContainer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.preview-container {
  background-color: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition);
}

.preview-container:hover {
  box-shadow: var(--box-shadow-hover);
}

.preview-container img {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: calc(var(--border-radius) / 2);
  flex-shrink: 0;
}

/* Preview Details */
.preview-details {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
}

.preview-filename {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.preview-stats {
  display: flex;
  gap: 0.75rem;
  color: var(--gray-color);
  font-size: 0.8rem;
}

.preview-stats span {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

/* Preview Actions */
.preview-actions {
  display: flex;
  gap: 0.5rem;
}

.download-btn,
.remove-btn {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: calc(var(--border-radius) / 2);
  border: none;
  font-weight: 400;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.download-btn {
  background-color: var(--success-color);
  color: white;
}

.download-btn:hover {
  background-color: #3fa039;
}

.download-btn:disabled {
  background-color: var(--gray-color);
  cursor: not-allowed;
}

.remove-btn {
  background-color: var(--error-color);
  color: white;
}

.remove-btn:hover {
  background-color: #e60000;
}

/* Loading Indicator */
#loadingIndicator {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  display: none;
}

/* Modern Loading Indicator */
.preview-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 4px solid rgba(67, 97, 238, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  font-size: 0.85rem;
  color: var(--primary-color);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 600px) {
  .compression-options {
    grid-template-columns: 1fr;
  }
  
  .compress-image {
    padding: 1rem;
  }
  
  .upload-box {
    padding: 1.5rem 1rem;
  }
  
  .target-size-group {
    width: 100%;
  }

   #targetSize {
    flex: 1;
  }

  .preview-container {
    padding: 0.6rem;
    gap: 0.6rem;
  }

  .preview-container img {
    width: 40px;
    height: 40px;
  }

  .preview-details {
    font-size: 0.8rem;
  }

  .preview-stats {
    flex-direction: column;
    gap: 0.1rem;
    font-size: 0.75rem;
  }

  .preview-actions {
    flex-direction: column;
    gap: 0.3rem;
  }

  .download-btn, .remove-btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
  }

  .compression-stats {
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
  }
}  flex: 1;
}

.target-size-group {
  display: flex;
  gap: 0.5rem;
  flex: 1;
}

#targetSize {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  width: 80px;
}

#compressBtn {
  padding: 0.4rem 0.8rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

#compressBtn:hover:not(:disabled) {
  background-color: var(--primary-dark);
}

#compressBtn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Minimal Ad Space */
.ads-container {
  height: 50px;
  margin: 1rem 0;
}

/* Preview Section */
.preview-section {
  scroll-margin-top: 20px;
}

#previewContainer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.preview-container {
  background-color: #fff;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition);
}

.preview-container:hover {
  box-shadow: var(--box-shadow-hover);
}

.preview-container img {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: calc(var(--border-radius) / 2);
  flex-shrink: 0;
}

/* Preview Details */
.preview-details {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
}

.preview-filename {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.preview-stats {
  display: flex;
  gap: 0.75rem;
  color: var(--gray-color);
  font-size: 0.8rem;
}

.preview-stats span {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

/* Preview Actions */
.preview-actions {
  display: flex;
  gap: 0.5rem;
}

.download-btn,
.remove-btn {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  border-radius: calc(var(--border-radius) / 2);
  border: none;
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* Download Button */
.download-btn {
  background-color: var(--success-color);
  color: white;
}

.download-btn:hover {
  background-color: #3fa039;
}

.download-btn:disabled {
  background-color: var(--gray-color);
  cursor: not-allowed;
}

/* Remove Button */
.remove-btn {
  background-color: var(--error-color);
  color: white;
}

.remove-btn:hover {
  background-color: #e60000;
}

/* Loading Indicator */
#loadingIndicator {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  display: none;
}

/* Responsive */
@media (max-width: 600px) {
  .compression-options {
    grid-template-columns: 1fr;
  }
  
  .compress-image {
    padding: 1rem;
  }
  
  .upload-box {
    padding: 1.5rem 1rem;
  }
  
  .target-size-group {
    width: 100%;
  }

   #targetSize {
    flex: 1;
  }

  .preview-container {
    padding: 0.6rem;
    gap: 0.6rem;
  }

  .preview-container img {
    width: 40px;
    height: 40px;
  }

  .preview-details {
    font-size: 0.8rem;
  }

  .preview-stats {
    flex-direction: column;
    gap: 0.1rem;
    font-size: 0.75rem;
  }

  .preview-actions {
    flex-direction: column;
    gap: 0.3rem;
  }

  .download-btn, .remove-btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
  }

  .compression-stats {
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
  }
}