* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
 }
 
 body {
   font-family: 'Inter', sans-serif;
   background: linear-gradient(135deg, #FAFBFC 0%, #FBFBFB 50%, #F5F7FA 100%);
   min-height: 100vh;
   color: #1A1A1A;
   ""
   display: flex;
   flex-direction: column;
 }
 
 body::-webkit-scrollbar {
   display: none;
 }
 
 /* Header Styles */
 header {
   text-align: center;
   padding: 3rem 1rem 1rem;
   backdrop-filter: blur(10px);
   animation: fadeInDown 0.6s ease-out;
 }
 
 .badge {
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 0.5rem;
   margin-bottom: 1rem;
   font-size: 0.75rem;
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: #3B82F6;
 }
 
 .badge-dot {
   width: 10px;
   height: 10px;
   background: linear-gradient(135deg, #3B82F6, #2563EB);
   border-radius: 50%;
 }
 
 h1 {
   font-size: 3rem;
   font-weight: 800;
   margin-bottom: 1rem;
   background: linear-gradient(135deg, #1A1A1A, #404040);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
 }
 
 .subtitle {
   color: #666666;
   font-size: 1rem;
   max-width: 600px;
   margin: 0 auto;
   line-height: 1.6;
 }
 
 /* Main Content */
 main {
   flex: 1;
   max-width: 800px;
   width: 100%;
   margin: 0 auto;
   padding: 3rem 1rem;
 }
 
 .card {
   background: white;
   border-radius: 24px;
   padding: 3rem;
   box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
   border: 1px solid #E8EAED;
   transition: all 0.5s ease;
   animation: fadeInUp 0.6s ease-out 0.3s backwards;
 }
 
 .card:hover {
   box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
 }
 
 /* Upload Zone */
 .upload-zone {
   border: 2px dashed #D1D5DB;
   border-radius: 16px;
   padding: 3rem;
   text-align: center;
   cursor: pointer;
   background: #FAFBFC;
   transition: all 0.3s ease;
   user-select: none;
 }
 
 .upload-zone:hover {
   border-color: #3B82F6;
   background: #F0F7FF;
 }
 
 .upload-icon {
   width: 64px;
   height: 64px;
   background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
   border-radius: 16px;
   border: 1px solid #93C5FD;
   display: flex;
   align-items: center;
   justify-content: center;
   margin: 0 auto 1.5rem;
   transition: all 0.3s ease;
 }
 
 .upload-zone:hover .upload-icon {
   transform: scale(1.01);
   box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
 }
 
 .upload-title {
   font-size: 1.25rem;
   font-weight: 600;
   color: #1F2937;
   margin-bottom: 0.5rem;
 }
 
 .upload-subtitle {
   font-size: 0.875rem;
   color: #6B7280;
   margin-bottom: 2rem;
 }
 
 .select-btn {
   background: linear-gradient(135deg, #3B82F6, #2563EB);
   color: white;
   border: none;
   padding: 0.75rem 2rem;
   border-radius: 50px;
   font-weight: 600;
   font-size: 0.875rem;
   cursor: pointer;
   transition: all 0.3s ease;
 }
 
 .select-btn:hover {
   transform: scale(1.05);
   box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
 }
 
 /* File Info Card */
 .file-card {
   display: flex;
   align-items: center;
   justify-content: space-between;
   background: linear-gradient(135deg, #F8FAFC, #F0F7FF);
   border: 1px solid #E0E7FF;
   border-radius: 16px;
   padding: 1.25rem;
   margin-bottom: 2rem;
   transition: all 0.3s ease;
 }
 
 .file-card:hover {
   box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
   border-color: #93C5FD;
 }
 
 .file-info {
   display: flex;
   align-items: center;
   gap: 1rem;
   overflow: hidden;
 }
 
 .file-icon {
   width: 48px;
   height: 48px;
   background: white;
   border: 1px solid #E8EAED;
   border-radius: 12px;
   display: flex;
   align-items: center;
   justify-content: center;
   flex-shrink: 0;
   box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
   font-size: 1.5rem;
 }
 
 .file-details h3 {
   font-size: 0.875rem;
   font-weight: 600;
   color: #1F2937;
   margin-bottom: 0.25rem;
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
   max-width: 300px;
 }
 
 .file-details p {
   font-size: 0.75rem;
   color: #6B7280;
   text-transform: uppercase;
   font-weight: 500;
 }
 
 .clear-btn {
   background: transparent;
   border: none;
   cursor: pointer;
   display: grid;
   place-content: center;
   height: 30px;
   width: 30px;
   padding: 0.5rem;
   border-radius: 100%;
   transition: all 0.3s ease;
 }
 
 .clear-btn:hover {
   background: #FEE2E2;
   transform: rotate(90deg);
 }
 
 /* Compression Controls */
 .compression-panel {
   background: linear-gradient(135deg, #F9FAFB, #F3F4F6);
   border: 1px solid #E5E7EB;
   border-radius: 16px;
   padding: 1.5rem;
   margin-bottom: 2rem;
 }
 
 .compression-header {
   display: flex;
   justify-content: space-between;
   align-items: flex-end;
   margin-bottom: 1.5rem;
 }
 
 .compression-label h3 {
   font-size: 0.875rem;
   font-weight: 600;
   text-transform: uppercase;
   letter-spacing: 0.05em;
   color: #1F2937;
   margin-bottom: 0.25rem;
 }
 
 .compression-label p {
   font-size: 0.75rem;
   color: #6B7280;
   font-weight: 500;
 }
 
 .compression-value {
   font-size: 2rem;
   font-weight: 700;
   background: linear-gradient(135deg, #3B82F6, #2563EB);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
 }
 
 /* Slider */
 .slider-container {
   padding-top: 1rem;
 }
 
 input[type="range"] {
   width: 100%;
   height: 12px;
   background: linear-gradient(90deg, #DBEAFE, #BFDBFE, #93C5FD);
   border-radius: 10px;
   outline: none;
   -webkit-appearance: none;
   cursor: pointer;
 }
 
 input[type="range"]::-webkit-slider-thumb {
   -webkit-appearance: none;
   appearance: none;
   width: 28px;
   height: 28px;
   background: linear-gradient(135deg, #3B82F6, #2563EB);
   border: 3px solid white;
   border-radius: 50%;
   cursor: pointer;
   box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
   transition: all 0.2s ease;
 }
 
 input[type="range"]::-webkit-slider-thumb:hover {
   transform: scale(1.15);
   box-shadow: 0 8px 24px rgba(59, 130, 246, 0.5);
 }
 
 input[type="range"]::-moz-range-thumb {
   width: 28px;
   height: 28px;
   background: linear-gradient(135deg, #3B82F6, #2563EB);
   border: 3px solid white;
   border-radius: 50%;
   cursor: pointer;
   box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
   transition: all 0.2s ease;
 }
 
 .slider-labels {
   display: flex;
   justify-content: space-between;
   margin-top: 1.25rem;
   font-size: 0.75rem;
   font-weight: 600;
   text-transform: uppercase;
   color: #6B7280;
   letter-spacing: 0.05em;
 }
 
 .slider-labels span {
   transition: color 0.3s ease;
   cursor: default;
 }
 
 .slider-labels span:hover {
   color: #3B82F6;
 }
 
 /* Compress Button */
 .compress-btn {
   width: 100%;
   background: linear-gradient(135deg, #3B82F6, #2563EB);
   color: white;
   border: none;
   padding: 1.25rem;
   border-radius: 16px;
   font-weight: 700;
   font-size: 1.125rem;
   cursor: pointer;
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 0.75rem;
   transition: all 0.3s ease;
   box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
   user-select: none;
 }
 
 .compress-btn:hover:not(:disabled) {
   box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
 }
 
 .compress-btn:active:not(:disabled) {
   transform: scale(0.98);
 }
 
 .compress-btn:disabled {
   background: #93C5FD;
   cursor: not-allowed;
 }
 
 /* Results Card */
 .results-card {
   background: linear-gradient(135deg, #F0FDF4, #ECFDF5);
   border: 1px solid #86EFAC;
   border-radius: 24px;
   padding: 2rem;
   margin-top: 2rem;
   animation: slideDown 0.5s ease-out;
 }
 
 .results-header {
   display: flex;
   align-items: center;
   gap: 0.75rem;
   margin-bottom: 2rem;
 }
 
 .success-icon {
   background: linear-gradient(135deg, #22C55E, #16A34A);
   border-radius: 50%;
   padding: 0.5rem;
   display: flex;
   align-items: center;
   justify-content: center;
   animation: scaleIn 0.5s ease-out;
 }
 
 .results-title {
   font-size: 1.125rem;
   font-weight: 700;
   background: linear-gradient(135deg, #16A34A, #15803D);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
 }
 
 .results-grid {
   display: grid;
   align-items: center;
   grid-template-columns: 1fr 1fr;
   gap: 1.5rem;
   margin-bottom: 2rem;
 }
 
 .stats-column {
   display: flex;
   flex-direction: column;
   gap: 1rem;
 }
 
 .stat-card {
   background: rgba(255, 255, 255, 0.6);
   border: 1px solid #BBF7D0;
   border-radius: 16px;
   padding: 1rem;
   display: flex;
   justify-content: space-between;
   align-items: center;
   transition: all 0.3s ease;
   backdrop-filter: blur(10px);
 }
 
 .stat-card:hover {
   transform: translateY(-4px);
   box-shadow: 0 10px 25px rgba(34, 197, 94, 0.15);
   border-color: #86EFAC;
 }
 
 .stat-card.highlight {
   background: white;
   border-color: #86EFAC;
   box-shadow: 0 4px 12px rgba(34, 197, 94, 0.1);
 }
 
 .stat-label {
   font-size: 0.875rem;
   color: #15803D;
   font-weight: 500;
 }
 
 .stat-value {
   font-weight: 700;
   color: #1F2937;
 }
 
 .stat-value.large {
   font-size: 1.5rem;
   color: #16A34A;
 }
 
 .savings-card {
   background: linear-gradient(90deg, #F0FDF4, #DCFCE7);
   border: 1px solid #86EFAC;
   border-radius: 12px;
   padding: 0.75rem 0.5rem;
   display: flex;
   justify-content: space-between;
   align-items: center;
 }
 
 .savings-value {
   font-size: 1.5rem;
   font-weight: 900;
   color: #16A34A;
 }
 
 .preview-card {
   background: white;
   border: 1px solid #BBF7D0;
   border-radius: 16px;
   padding: 1rem;
   min-height: 180px;
   display: flex;
   align-items: center;
   justify-content: center;
   transition: all 0.3s ease;
 }
 
 .preview-card:hover {
   box-shadow: 0 15px 30px rgba(34, 197, 94, 0.2);
   border-color: #86EFAC;
 }
 
 .preview-img {
   max-width: 100%;
   max-height: 180px;
   object-fit: contain;
   border-radius: 12px;
 }
 
 .preview-placeholder {
   text-align: center;
   color: #16A34A;
 }
 
 .download-btn {
   width: 100%;
   background: linear-gradient(135deg, #16A34A, #15803D);
   color: white;
   border: none;
   padding: 1.25rem;
   border-radius: 16px;
   font-weight: 700;
   font-size: 1.125rem;
   cursor: pointer;
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 0.75rem;
   transition: all 0.3s ease;
   text-decoration: none;
 }
 
 .download-btn:hover {
   box-shadow: 0 20px 40px rgba(34, 197, 94, 0.4);
 }
 
 .download-btn:active {
   transform: scale(0.98);
 }
 
 /* Footer */
 footer {
   backdrop-filter: blur(10px);
   margin-top: 2rem;
   padding: 1rem 1rem;
   text-align: center;
   animation: fadeIn 0.6s ease-out 0.5s backwards;
 }
 
 footer p {
   font-size: 0.875rem;
   color: #6B7280;
   font-weight: 500;
 }
 
 
 /* Animations */
 @keyframes fadeInDown {
   from {
     opacity: 0;
     transform: translateY(-20px);
   }
   
   to {
     opacity: 1;
     transform: translateY(0);
   }
 }
 
 @keyframes fadeInUp {
   from {
     opacity: 0;
     transform: translateY(20px);
   }
   
   to {
     opacity: 1;
     transform: translateY(0);
   }
 }
 
 @keyframes fadeIn {
   from {
     opacity: 0;
   }
   
   to {
     opacity: 1;
   }
 }
 
 @keyframes slideDown {
   from {
     opacity: 0;
     max-height: 0;
     transform: translateY(-20px);
   }
   
   to {
     opacity: 1;
     max-height: 1000px;
     transform: translateY(0);
   }
 }
 
 @keyframes scaleIn {
   from {
     opacity: 0;
     transform: scale(0);
   }
   
   to {
     opacity: 1;
     transform: scale(1);
   }
 }
 
 @keyframes spin {
   from {
     transform: rotate(0deg);
   }
   
   to {
     transform: rotate(360deg);
   }
 }
 
 .spinner {
   animation: spin 1s linear infinite;
 }
 
 /* Utility Classes */
 .hidden {
   display: none !important;
 }
 
 /* Responsive */
 @media (max-width: 768px) {
   h1 {
     font-size: 2rem;
   }
   
   .card {
     padding: 2rem 1.5rem;
   }
   
   .upload-zone {
     padding: 2rem 1rem;
   }
   
   .results-grid {
     grid-template-columns: 1fr;
   }
   
   .slider-labels span:nth-child(2) {
     display: none;
   }
   
   .file-details h3 {
     max-width: 150px;
   }
 }
 
 /* Background Patterns */
 .bg-pattern {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   pointer-events: none;
   z-index: -1;
   overflow: hidden;
 }
 
 .blob {
   position: absolute;
   border-radius: 50%;
   filter: blur(60px);
   opacity: 0.6;
 }
 
 .blob-1 {
   top: -20%;
   left: -10%;
   width: 50%;
   height: 50%;
   background: #DBEAFE;
 }
 
 .blob-2 {
   bottom: -20%;
   right: -10%;
   width: 50%;
   height: 50%;
   background: #E9D5FF;
 }
 
 .blob-3 {
   top: 30%;
   right: 10%;
   width: 30%;
   height: 30%;
   background: #D1FAE5;
   opacity: 0.4;
 }