:root {
   --primary-color: #2196f3;
   --secondary-color: #1976d2;
   --background-color: #f5f5f5;
   --border-color: #e0e0e0;
}

* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
}

body {
   font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
   background-color: var(--background-color);
   color: #333;
}

.container {
   max-width: 1400px;
   margin: 0 auto;
   padding: 2rem;
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
   gap: 3rem;
}

h1 {
   text-align: center;
   margin-bottom: 2rem;
}

.upload-section,
.controls-section {
   background: #ffffff;
   border-radius: 16px;
   padding: 2.5rem;
   box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
   margin-bottom: 2rem;
}

h2 {
   font-size: 1.8rem;
   font-weight: 600;
   color: #2c3e50;
   margin-bottom: 1.5rem;
   position: relative;
   padding-bottom: 0.5rem;
}

h2::after {
   content: "";
   position: absolute;
   bottom: 0;
   left: 0;
   width: 60px;
   height: 3px;
   background: #4caf50;
   border-radius: 2px;
}

#upload-zone {
   border: 2px dashed #4caf50;
   border-radius: 12px;
   padding: 3rem 2rem;
   text-align: center;
   transition: all 0.3s ease;
   cursor: pointer;
   background: #f8fdf8;
   margin-bottom: 2rem;
}

#upload-zone:hover {
   background: #f0f9f0;
   border-color: #45a049;
}

#upload-zone i {
   font-size: 3.5rem;
   color: #4caf50;
   margin-bottom: 1rem;
}

#upload-zone p {
   color: #666;
   font-size: 1.1rem;
   margin: 0;
}

.preview-image {
   margin: 0.5rem;
   border-radius: 8px;
   overflow: hidden;
   box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
   position: relative;
}

.preview-image img {
   max-width: 100%;
   height: auto;
   display: block;
}

#wallpaper-preview {
   background: #f8f9fa;
   border-radius: 12px;
   padding: 1.5rem;
   margin-top: 2rem;
}

#wallpaper-preview img {
   width: 100%;
   height: auto;
   border-radius: 4px;
}

.drag-over {
   border-color: #4caf50 !important;
   background-color: rgba(76, 175, 80, 0.1) !important;
}

.control-group {
   margin-bottom: 2rem;
}

.control-group:last-child {
   margin-bottom: 0;
}

.control-group label {
   display: block;
   font-size: 1rem;
   font-weight: 500;
   color: #4a5568;
   margin-bottom: 0.75rem;
}

.control-group select,
.control-group input {
   width: 100%;
   padding: 0.5rem;
   border: 1px solid #ddd;
   border-radius: 4px;
   transition: all 0.3s ease;
}

.control-group select:focus,
.control-group input:focus {
   border-color: #4caf50;
   box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
   outline: none;
}

.button-group {
   display: flex;
   gap: 1rem;
   margin-top: 2.5rem;
}

.btn {
   padding: 0.75rem 1.5rem;
   font-size: 1rem;
   font-weight: 500;
   border-radius: 8px;
   border: none;
   cursor: pointer;
   transition: all 0.3s ease;
   text-transform: uppercase;
   letter-spacing: 0.5px;
}

.btn-primary {
   background: #4caf50;
   color: white;
   box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

.btn-primary:hover {
   background: #45a049;
   transform: translateY(-1px);
   box-shadow: 0 4px 12px rgba(76, 175, 80, 0.4);
}

.btn-secondary {
   background: #f0f0f0;
   color: #2c3e50;
}

.btn-secondary:hover {
   background: #e0e0e0;
   transform: translateY(-1px);
}

.btn:hover {
   transform: translateY(-2px);
   box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

@keyframes fadeIn {
   from {
      opacity: 0;
      transform: translateY(10px);
   }
   to {
      opacity: 1;
      transform: translateY(0);
   }
}

.fade-in {
   animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
   from {
      opacity: 0;
      transform: translateY(10px);
   }
   to {
      opacity: 1;
      transform: translateY(0);
   }
}

.btn:disabled {
   opacity: 0.6;
   cursor: not-allowed;
   transform: none;
   box-shadow: none;
}

.btn:disabled:hover {
   transform: none;
   box-shadow: none;
}

.preview-container {
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
   gap: 1rem;
   margin-top: 1rem;
}

.preview-image {
   position: relative;
   aspect-ratio: 1;
   border-radius: 8px;
   overflow: hidden;
   box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
   transition: transform 0.2s ease;
}

.preview-image:hover {
   transform: scale(1.05);
}

.preview-image img {
   width: 100%;
   height: 100%;
   object-fit: cover;
}

.remove-image {
   position: absolute;
   top: 5px;
   right: 5px;
   width: 24px;
   height: 24px;
   border-radius: 50%;
   background: rgba(255, 0, 0, 0.8);
   color: white;
   border: none;
   cursor: pointer;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 16px;
   opacity: 0;
   transition: opacity 0.3s ease;
}

.preview-image:hover .remove-image {
   opacity: 1;
}

.remove-image:hover {
   background: rgba(255, 0, 0, 1);
}

/* Add app title and container styles */
.app-title {
   text-align: center;
   font-size: 2.5rem;
   font-weight: 700;
   color: #2c3e50;
   margin: 2.5rem 0;
   padding-bottom: 1rem;
   position: relative;
}

.app-title::after {
   content: "";
   position: absolute;
   bottom: 0;
   left: 50%;
   transform: translateX(-50%);
   width: 100px;
   height: 4px;
   background: #4caf50;
   border-radius: 2px;
}

.background-image-container {
   display: flex;
   gap: 1rem;
   align-items: center;
   margin-top: 0.5rem;
}

.background-input {
   flex: 1;
   padding: 8px;
   border: 1px solid #ddd;
   border-radius: 4px;
   cursor: pointer;
}

.background-input:hover {
   border-color: #4caf50;
}

#background-color {
   width: 100%;
   height: 40px;
   padding: 4px;
   border: 1px solid #ddd;
   border-radius: 4px;
   cursor: pointer;
}

#background-color:hover {
   border-color: #4caf50;
}

.btn-small {
   padding: 8px 16px;
   font-size: 0.875rem;
   white-space: nowrap;
}

.wallpaper-preview-img {
   max-width: 100%;
   height: auto;
   border-radius: 8px;
   box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
   margin-top: 1rem;
}

/* Style file inputs */
input[type="file"] {
   width: 100%;
   padding: 0.75rem;
   border: 1px solid var(--border-color);
   border-radius: 8px;
   font-family: inherit;
   font-size: 0.95rem;
   color: #4a5568;
   background-color: #fff;
   cursor: pointer;
   transition: all 0.3s ease;
}

/* Style the file input button */
input[type="file"]::-webkit-file-upload-button {
   padding: 0.5rem 1rem;
   margin-right: 1rem;
   border: none;
   border-radius: 6px;
   background: #4caf50;
   color: white;
   font-family: inherit;
   font-size: 0.9rem;
   font-weight: 500;
   cursor: pointer;
   transition: all 0.3s ease;
}

input[type="file"]::file-selector-button {
   padding: 0.5rem 1rem;
   margin-right: 1rem;
   border: none;
   border-radius: 6px;
   background: #4caf50;
   color: white;
   font-family: inherit;
   font-size: 0.9rem;
   font-weight: 500;
   cursor: pointer;
   transition: all 0.3s ease;
}

/* Hover states */
input[type="file"]::-webkit-file-upload-button:hover {
   background: #45a049;
}

input[type="file"]::file-selector-button:hover {
   background: #45a049;
}

input[type="file"]:hover {
   border-color: #4caf50;
}

/* Focus states */
input[type="file"]:focus {
   outline: none;
   border-color: #4caf50;
   box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Footer Styles */
.footer {
   background: #ffffff;
   padding: 4rem 0 0 0;
   margin-top: 4rem;
   box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
}

.footer-content {
   max-width: 1400px;
   margin: 0 auto;
   padding: 0 2rem;
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
   gap: 3rem;
}

.footer-section h3 {
   color: #2c3e50;
   font-size: 1.3rem;
   margin-bottom: 1.5rem;
   position: relative;
   padding-bottom: 0.5rem;
}

.footer-section h3::after {
   content: "";
   position: absolute;
   bottom: 0;
   left: 0;
   width: 40px;
   height: 3px;
   background: #4caf50;
   border-radius: 2px;
}

.footer-section p {
   color: #666;
   line-height: 1.6;
   margin-bottom: 1rem;
}

.footer-section ul {
   list-style: none;
   padding: 0;
}

.footer-section ul li {
   margin-bottom: 1rem;
   color: #666;
   display: flex;
   align-items: center;
   gap: 0.8rem;
}

.footer-section ul li i {
   color: #4caf50;
   font-size: 1.2rem;
   width: 24px;
   height: 24px;
   display: flex;
   align-items: center;
   justify-content: center;
}

.footer-section ul li a {
   color: #666;
   text-decoration: none;
   transition: color 0.3s ease;
   display: flex;
   align-items: center;
   gap: 0.5rem;
}

.footer-section ul li a:hover {
   color: #4caf50;
}

.social-links {
   display: flex;
   gap: 1rem;
   margin-top: 1rem;
}

.social-link {
   width: 40px;
   height: 40px;
   border-radius: 50%;
   background: #f5f5f5;
   color: #4caf50;
   display: flex;
   align-items: center;
   justify-content: center;
   text-decoration: none;
   transition: all 0.3s ease;
}

.social-link:hover {
   background: #4caf50;
   color: white;
   transform: translateY(-3px);
   box-shadow: 0 4px 12px rgba(76, 175, 80, 0.2);
}

.footer-bottom {
   margin-top: 3rem;
   padding: 1.5rem 0;
   text-align: center;
   background: #f8f9fa;
   color: #666;
}

.footer-bottom p {
   margin: 0;
   font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
   .footer-content {
      grid-template-columns: 1fr;
      text-align: center;
   }

   .footer-section h3::after {
      left: 50%;
      transform: translateX(-50%);
   }

   .social-links {
      justify-content: center;
   }

   .footer-section ul li a {
      justify-content: center;
   }

   .footer-section ul li {
      justify-content: center;
   }

   .button-group {
      flex-direction: column;
      gap: 1rem;
   }

   .btn {
      width: 100%;
      padding: 1rem;
      font-size: 1rem;
      display: flex;
      justify-content: center;
      align-items: center;
   }

   .container {
      padding: 1rem;
      gap: 2rem;
   }

   .upload-section,
   .controls-section {
      padding: 1.5rem;
      margin-bottom: 1rem;
   }

   /* Adjust preview container for mobile */
   .preview-container {
      grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
      gap: 0.8rem;
   }

   /* Make color inputs more touch-friendly */
   input[type="color"] {
      height: 50px;
   }

   /* Make range inputs more touch-friendly */
   input[type="range"] {
      height: 30px;
   }

   /* Adjust select dropdowns for better touch */
   select {
      height: 45px;
      padding: 0.5rem;
   }

   /* Fix for background image container */
   .background-image-container {
      flex-direction: column;
      gap: 0.5rem;
   }

   .background-input {
      width: 100%;
      padding: 0.75rem;
   }

   /* Keep the clear button small */
   .btn-small {
      width: auto;
      padding: 0.5rem 1rem;
      min-width: 80px;
   }

   input[type="file"] {
      padding: 0.5rem;
      font-size: 0.9rem;
   }

   input[type="file"]::-webkit-file-upload-button,
   input[type="file"]::file-selector-button {
      padding: 0.5rem 0.75rem;
      font-size: 0.85rem;
   }
}

/* Add styles for very small screens */
@media (max-width: 480px) {
   .app-title {
      font-size: 2rem;
      margin: 1.5rem 0;
   }

   .preview-container {
      grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
      gap: 0.5rem;
   }

   .btn {
      padding: 0.875rem;
      font-size: 0.95rem;
   }

   .background-image-container {
      gap: 0.5rem;
   }

   .background-input {
      padding: 0.5rem;
   }

   .btn-small {
      padding: 0.5rem 0.75rem;
      font-size: 0.9rem;
   }
}

/* Add to your existing styles */
#resolution-select {
   width: 100%;
   padding: 0.75rem;
   border: 1px solid var(--border-color);
   border-radius: 8px;
   font-size: 0.95rem;
   color: #4a5568;
   background-color: #fff;
   cursor: pointer;
   transition: all 0.3s ease;
}

#resolution-select:hover {
   border-color: #4CAF50;
}

#resolution-select:focus {
   outline: none;
   border-color: #4CAF50;
   box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Add to your media queries */
@media (max-width: 768px) {
   #resolution-select {
      font-size: 0.9rem;
      padding: 0.5rem;
   }
}