.upload-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background-color:#f5f5f5}.upload-card,.upload-success,.upload-error{background:#fff;border-radius:8px;padding:40px;max-width:600px;box-shadow:0 2px 8px #0000001a}.upload-card h1{margin-bottom:10px;color:#333;font-size:28px}.subtitle{color:#666;margin-bottom:30px}.upload-area{position:relative;margin:30px 0}.file-input{display:none}.upload-label{display:block;border:2px dashed #007bff;border-radius:8px;padding:40px;text-align:center;cursor:pointer;transition:all .3s ease;background-color:#f8f9ff}.upload-label:hover{border-color:#0056b3;background-color:#f0f7ff}.upload-icon{font-size:48px;margin-bottom:15px}.upload-text{font-size:16px;color:#333;margin:10px 0}.upload-hint{font-size:13px;color:#999;margin-top:10px}.file-info{background:#f0f7ff;border-left:4px solid #007bff;padding:15px;border-radius:4px;margin:15px 0;font-size:14px}.upload-btn{width:100%;background-color:#007bff;color:#fff;padding:12px;border:none;border-radius:4px;font-size:16px;cursor:pointer;margin-top:20px;font-weight:500}.upload-btn:hover:not(:disabled){background-color:#0056b3}.upload-btn:disabled{opacity:.6;cursor:not-allowed}.security-features{margin-top:30px;padding:20px;background:#f9f9f9;border-radius:4px}.security-features p{margin:0 0 15px;font-weight:600;color:#333}.security-features ul{list-style:none;padding:0;margin:0}.security-features li{padding:8px 0;color:#666;font-size:14px}.security-features li:before{content:"✓ ";color:#28a745;font-weight:700;margin-right:8px}.upload-success h2{color:#28a745;margin-bottom:20px}.file-name{font-size:18px;font-weight:600;margin:15px 0 5px;color:#333;word-break:break-all}.file-size,.expiration{color:#666;font-size:14px;margin:5px 0}.url-box{display:flex;gap:10px;margin:20px 0;background:#f0f7ff;padding:15px;border-radius:4px}.url-input{flex:1;border:1px solid #ddd;padding:10px;border-radius:4px;font-size:13px;font-family:monospace;background:#fff}.copy-btn{background-color:#28a745;color:#fff;padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500}.security-note{margin-top:20px;padding:15px;background:#d4edda;border-left:4px solid #28a745;border-radius:4px;font-size:14px;color:#155724;line-height:1.5}.info{margin-top:15px;color:#666;font-size:14px;line-height:1.5;text-align:center}.upload-error{text-align:center}.upload-error h2{color:#dc3545;margin-bottom:15px}.upload-error p{color:#666;margin:10px 0}.viewer-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background-color:#f5f5f5}.viewer-card{background:#fff;border-radius:8px;padding:40px;max-width:800px;box-shadow:0 2px 8px #0000001a}.viewer-card h1{margin-bottom:10px;color:#333}.viewer-card p{color:#666;margin-bottom:20px}.viewer-content{margin:30px 0;border:1px solid #ddd;border-radius:4px;overflow:hidden;background:#fafafa}.viewer-canvas{width:100%;height:auto;display:block}.viewer-loading{display:flex;align-items:center;justify-content:center;min-height:400px;color:#999;font-size:14px}.download-btn{background-color:#007bff;color:#fff;padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:14px;width:100%}.download-btn:hover:not(:disabled){background-color:#0056b3}.download-btn:disabled{opacity:.6;cursor:not-allowed}.viewer-info{margin-top:20px;padding:15px;background:#f0f7ff;border-left:4px solid #007bff;border-radius:4px;font-size:14px;color:#333}.viewer-info p{margin:5px 0;color:#555}.viewer-error{padding:30px;text-align:center}.viewer-error h2{color:#dc3545;margin-bottom:15px}.viewer-error a{color:#007bff;text-decoration:none}.viewer-error a:hover{text-decoration:underline}.dashboard-container{min-height:100vh;padding:20px;background-color:#f5f5f5}.dashboard-card{background:#fff;border-radius:8px;padding:30px;max-width:1000px;margin:0 auto;box-shadow:0 2px 8px #0000001a}.dashboard-card h1{margin-bottom:30px;color:#333;font-size:28px}.loading{text-align:center;padding:40px;color:#999;font-size:14px}.no-files{text-align:center;padding:60px 20px;color:#999}.no-files p{margin:10px 0;font-size:16px}.no-files p:first-child{font-weight:600;color:#666}.files-list{display:grid;gap:20px}.file-item{border:1px solid #ddd;border-radius:8px;padding:20px;background:#fafafa;transition:box-shadow .2s ease}.file-item:hover{box-shadow:0 2px 8px #0000001a}.file-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:15px}.file-header h3{margin:0;color:#333;word-break:break-word;flex:1}.file-size{background:#007bff;color:#fff;padding:4px 12px;border-radius:4px;font-size:12px;font-weight:600;white-space:nowrap;margin-left:15px}.file-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-bottom:15px}.file-info p{margin:0;font-size:13px;color:#666}.file-stats{background:#f0f7ff;padding:12px;border-radius:4px;margin:15px 0;font-size:13px;color:#333}.file-stats p{margin:5px 0}.file-url{display:flex;gap:10px;margin:15px 0;background:#f0f7ff;padding:12px;border-radius:4px}.url-input{flex:1;border:1px solid #ddd;padding:8px;border-radius:4px;font-size:13px;font-family:monospace;background:#fff}.copy-btn{background-color:#28a745;color:#fff;padding:8px 16px;border:none;border-radius:4px;cursor:pointer;font-size:13px;font-weight:500;white-space:nowrap}.copy-btn:hover{background-color:#218838}.file-actions{display:flex;gap:10px;flex-wrap:wrap}.extend-btn,.delete-btn{padding:8px 16px;border:none;border-radius:4px;cursor:pointer;font-size:13px;font-weight:500;flex:1;min-width:150px}.extend-btn{background-color:#ffc107;color:#333}.extend-btn:hover{background-color:#e0a800}.delete-btn{background-color:#dc3545;color:#fff}.delete-btn:hover{background-color:#c82333}.auth-error{text-align:center;padding:60px 20px}.auth-error h2{color:#dc3545;margin-bottom:15px}.auth-error p{color:#666;font-size:14px}@media(max-width:768px){.dashboard-card{padding:20px}.file-header{flex-direction:column}.file-size{margin-left:0;margin-top:10px;align-self:flex-start}.file-info{grid-template-columns:1fr}.file-actions{flex-direction:column}.extend-btn,.delete-btn{min-width:unset}}:root{--primary: #007bff;--success: #28a745;--danger: #dc3545;--warning: #ffc107;--dark: #343a40;--light: #f8f9fa;--border: #dee2e6}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f5f5f5;color:#333}.app-container{min-height:100vh;display:flex;flex-direction:column}button{cursor:pointer;border:none;border-radius:4px;font-size:14px;padding:10px 16px;transition:all .3s ease}button:disabled{opacity:.5;cursor:not-allowed}input[type=text],textarea{border:1px solid var(--border);border-radius:4px;padding:8px 12px;font-family:inherit;font-size:14px}input[type=text]:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #007bff40}.error-message{background-color:#f8d7da;color:#721c24;padding:12px 16px;border-radius:4px;margin:10px 0;border:1px solid #f5c6cb}.success-message{background-color:#d4edda;color:#155724;padding:12px 16px;border-radius:4px;margin:10px 0;border:1px solid #c3e6cb}@media(max-width:768px){body{font-size:14px}button{padding:8px 12px;font-size:13px}}