.app{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.container{width:100%;max-width:900px;background:var(--surface);border-radius:24px;box-shadow:0 20px 60px var(--shadow-lg);padding:3rem;animation:fadeIn .5s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.header{text-align:center;margin-bottom:3rem}.header h1{font-size:3rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.subtitle{color:var(--text-secondary);font-size:1.1rem;font-weight:400}.drop-zone{border:3px dashed var(--border);border-radius:16px;padding:4rem 2rem;text-align:center;transition:all .3s ease;background:var(--background);cursor:pointer;position:relative}.drop-zone:hover{border-color:var(--primary);background:#0066ff0d}.drop-zone.active{border-color:var(--primary);background:#0066ff1a;transform:scale(1.02)}.drop-zone.uploading{pointer-events:none;opacity:.7}.file-input{display:none}.drop-zone-label{display:flex;flex-direction:column;align-items:center;gap:1rem;cursor:pointer}.drop-zone-label svg{color:var(--primary);margin-bottom:.5rem}.drop-zone-label h2{font-size:1.5rem;font-weight:600;color:var(--text);margin:0}.drop-zone-label p{color:var(--text-secondary);font-size:1rem;margin:0}.files-list{margin-top:3rem}.files-list h3{font-size:1.5rem;font-weight:600;margin-bottom:1.5rem;color:var(--text)}.file-item{background:var(--background);border-radius:12px;padding:1.5rem;margin-bottom:1rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;transition:all .2s ease}.file-item:hover{box-shadow:0 4px 12px var(--shadow)}.file-info{display:flex;align-items:center;gap:1rem;flex:1;min-width:0}.file-icon{color:var(--primary);flex-shrink:0}.file-details{flex:1;min-width:0}.file-name{font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:.25rem}.file-size{font-size:.875rem;color:var(--text-secondary)}.file-actions{display:flex;align-items:center;gap:1rem;flex-shrink:0}.progress-bar{position:relative;width:200px;height:32px;background:var(--border);border-radius:16px;overflow:hidden}.progress-fill{position:absolute;top:0;left:0;height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-dark));transition:width .3s ease;border-radius:16px}.progress-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:.875rem;font-weight:600;color:var(--text);z-index:1}.share-section{display:flex;flex-direction:column;gap:.5rem;align-items:flex-end}.share-link{display:flex;gap:.5rem;align-items:center}.link-input{padding:.5rem 1rem;border:2px solid var(--border);border-radius:8px;font-size:.875rem;width:300px;background:var(--surface);color:var(--text);font-family:Courier New,monospace}.link-input:focus{outline:none;border-color:var(--primary)}.btn{padding:.5rem 1.5rem;border:none;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s ease;font-family:inherit}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 8px var(--shadow)}.btn-remove{background:transparent;color:var(--danger);font-size:1.25rem;padding:.25rem .5rem;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%}.btn-remove:hover{background:#dc35451a}.expiry-info{font-size:.75rem;color:var(--text-secondary);text-align:right}.error-message{color:var(--danger);font-size:.875rem;padding:.5rem 1rem;background:#dc35451a;border-radius:8px}.footer{margin-top:3rem;text-align:center;padding-top:2rem;border-top:1px solid var(--border)}.footer p{color:var(--text-secondary);font-size:.875rem;margin:.25rem 0}.footer-sub{font-weight:600;color:var(--text)}@media (max-width: 768px){.container{padding:2rem 1.5rem}.header h1{font-size:2rem}.drop-zone{padding:3rem 1.5rem}.file-item{flex-direction:column;align-items:flex-start}.file-actions{width:100%;justify-content:space-between}.share-link{flex-direction:column;width:100%}.link-input,.progress-bar{width:100%}}.download-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.download-container{width:100%;max-width:600px;background:var(--surface);border-radius:24px;box-shadow:0 20px 60px var(--shadow-lg);padding:3rem;text-align:center;animation:fadeIn .5s ease-in}.file-icon-large{color:var(--primary);margin:0 auto 2rem;display:flex;justify-content:center}.download-container h1{font-size:1.75rem;font-weight:600;color:var(--text);margin-bottom:2rem;word-break:break-word}.file-details-grid{display:grid;gap:1rem;margin-bottom:2rem;text-align:left;background:var(--background);padding:1.5rem;border-radius:12px}.detail-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--border)}.detail-item:last-child{border-bottom:none}.detail-label{font-weight:500;color:var(--text-secondary)}.detail-value{font-weight:600;color:var(--text)}.btn-download{background:var(--primary);color:#fff;padding:1rem 2rem;font-size:1.1rem;font-weight:600;border:none;border-radius:12px;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:.5rem;margin-bottom:1.5rem}.btn-download:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 16px var(--shadow)}.back-link{color:var(--text-secondary);text-decoration:none;font-size:.875rem;transition:color .2s ease}.back-link:hover{color:var(--primary)}.loading-spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{to{transform:rotate(360deg)}}.error-icon{font-size:4rem;margin-bottom:1rem}.download-container h2{font-size:1.5rem;font-weight:600;color:var(--text);margin-bottom:1rem}.download-container p{color:var(--text-secondary);margin-bottom:1.5rem}*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #0066ff;--primary-dark: #0052cc;--secondary: #6c757d;--success: #28a745;--danger: #dc3545;--background: #f8f9fa;--surface: #ffffff;--text: #212529;--text-secondary: #6c757d;--border: #dee2e6;--shadow: rgba(0, 0, 0, .1);--shadow-lg: rgba(0, 0, 0, .15)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--text)}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}