:root{--bg-color:#f8fafc;--bg-gradient:linear-gradient(135deg,#667eea,#764ba2);--text-color:#0f172a;--text-muted:#64748b;--text-light:#94a3b8;--card-bg:#fff;--navbar-bg:linear-gradient(135deg,#667eea,#764ba2);--navbar-text:#fff;--secondary-bg:#f1f5f9;--accent-color:#6366f1;--accent-hover:#4f46e5;--accent-light:#eef2ff;--accent-gradient:linear-gradient(135deg,#667eea,#764ba2);--success-color:#10b981;--success-light:#d1fae5;--warning-color:#f59e0b;--warning-light:#fef3c7;--danger-color:#ef4444;--danger-light:#fee2e2;--border-color:#e2e8f0;--border-light:#f1f5f9;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--shadow-sm:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;--shadow-2xl:0 25px 50px -12px #00000040;--shadow-glow:0 0 20px #667eea4d;--transition-fast:150ms cubic-bezier(0.4,0,0.2,1);--transition-normal:250ms cubic-bezier(0.4,0,0.2,1);--transition-slow:350ms cubic-bezier(0.4,0,0.2,1);--container-max-width:1280px;--header-height:72px}.tool-page{animation:fadeIn .35s cubic-bezier(.4,0,.2,1);animation:fadeIn var(--transition-slow);margin:40px auto;max-width:1200px;padding:0 24px}.tool-page h1{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#667eea,#764ba2);background:var(--accent-gradient);background-clip:text;-webkit-background-clip:text;font-size:clamp(2rem,5vw,2.5rem);font-weight:800;letter-spacing:-.025em;margin:0 0 12px}.tool-page .subtitle{color:#64748b;color:var(--text-muted);font-size:1.125rem;line-height:1.75;margin-bottom:32px}.tool-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:1fr 1fr}.tool-card{background:#fff;background:var(--card-bg);border:1px solid #f1f5f9;border:1px solid var(--border-light);border-radius:24px;border-radius:var(--radius-xl);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a;box-shadow:var(--shadow-lg);overflow:hidden;padding:32px;position:relative;transition:all .25s cubic-bezier(.4,0,.2,1);transition:all var(--transition-normal)}.tool-card:before{background:linear-gradient(135deg,#667eea,#764ba2);background:var(--accent-gradient);content:"";height:4px;left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity .25s cubic-bezier(.4,0,.2,1);transition:opacity var(--transition-normal)}.tool-card:hover{border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;box-shadow:var(--shadow-xl);transform:translateY(-4px)}.tool-card:hover:before{opacity:1}@media (max-width:900px){.tool-grid{grid-template-columns:1fr}}.dropzone{border:2px dashed #e2e8f0;border:2px dashed var(--border-color);border-radius:12px;border-radius:var(--radius-md);margin-top:12px;padding:18px;transition:border-color .15s cubic-bezier(.4,0,.2,1),background .15s cubic-bezier(.4,0,.2,1);transition:border-color var(--transition-fast),background var(--transition-fast)}.password-controls{align-items:flex-start;display:flex;gap:12px}.password-row{align-items:center;display:flex;flex:1 1;gap:8px}.password-row input{margin-bottom:0}.inline-btn{align-items:center;background:#fff;background:var(--card-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);cursor:pointer;display:flex;flex-shrink:0;font-size:1.2rem;height:44px;justify-content:center;min-width:44px;padding:10px 12px;transition:all .15s cubic-bezier(.4,0,.2,1);transition:all var(--transition-fast)}.inline-btn:hover{background:#eef2ff;background:var(--accent-light);border-color:#6366f1;border-color:var(--accent-color);transform:scale(1.05)}.inline-btn.generate-btn{background:linear-gradient(135deg,#667eea,#764ba2);background:var(--accent-gradient);border-color:#0000;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md);color:#fff}.inline-btn.generate-btn:hover{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a,0 0 20px #667eea4d;box-shadow:var(--shadow-lg),var(--shadow-glow);transform:scale(1.08)}.password-generator{animation:slideInRight .25s cubic-bezier(.4,0,.2,1);animation:slideInRight var(--transition-normal);background:#f1f5f9;background:var(--secondary-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:16px;border-radius:var(--radius-lg);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md);margin-top:1rem;padding:1.5rem}.generator-header{margin-bottom:1.25rem}.generator-header label{color:#0f172a;color:var(--text-color);display:block;font-size:1rem;font-weight:600;margin-bottom:.75rem}.generator-options{grid-gap:1.25rem;background:#fff;background:var(--card-bg);border:1px solid #e2e8f0;border:1px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);display:grid;gap:1.25rem;grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:1.25rem;padding:1.25rem}.checkbox-option{align-items:center;border-radius:8px;border-radius:var(--radius-sm);cursor:pointer;display:inline-flex;flex-direction:row;gap:.75rem;justify-content:center;min-height:44px;padding:.75rem .9rem;text-align:left;transition:all .15s cubic-bezier(.4,0,.2,1);transition:all var(--transition-fast)}.checkbox-option:hover{background:#eef2ff;background:var(--accent-light)}.checkbox-option input[type=checkbox]{accent-color:#6366f1;accent-color:var(--accent-color);cursor:pointer;height:22px;margin:0;vertical-align:middle;width:22px}.checkbox-option span{color:#0f172a;color:var(--text-color);font-size:.9375rem;font-weight:500;line-height:22px}@media (max-width:520px){.generator-options{grid-template-columns:1fr}}.generator-generate-btn{font-size:1rem;font-weight:700;padding:.875rem 1.5rem;width:100%}.password-length-slider{-webkit-appearance:none;appearance:none;background:#e2e8f0;background:var(--border-color);border-radius:9999px;border-radius:var(--radius-full);cursor:pointer;height:8px;margin-bottom:1rem;outline:none;width:100%}.password-length-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:linear-gradient(135deg,#667eea,#764ba2);background:var(--accent-gradient);border-radius:50%;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md);cursor:pointer;height:24px;-webkit-transition:all .15s cubic-bezier(.4,0,.2,1);transition:all .15s cubic-bezier(.4,0,.2,1);-webkit-transition:all var(--transition-fast);transition:all var(--transition-fast);width:24px}.password-length-slider::-webkit-slider-thumb:hover{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a,0 0 20px #667eea4d;box-shadow:var(--shadow-lg),var(--shadow-glow);transform:scale(1.2)}.password-length-slider::-moz-range-thumb{background:linear-gradient(135deg,#667eea,#764ba2);background:var(--accent-gradient);border:none;border-radius:50%;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md);cursor:pointer;height:24px;-moz-transition:all .15s cubic-bezier(.4,0,.2,1);transition:all .15s cubic-bezier(.4,0,.2,1);-moz-transition:all var(--transition-fast);transition:all var(--transition-fast);width:24px}.password-length-slider::-moz-range-thumb:hover{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a,0 0 20px #667eea4d;box-shadow:var(--shadow-lg),var(--shadow-glow);transform:scale(1.2)}.pw-strength{align-items:center;background:#f1f5f9;background:var(--secondary-bg);border-radius:12px;border-radius:var(--radius-md);display:flex;gap:12px;margin-top:.75rem;padding:.5rem}.pw-strength .pw-bar{background:#f59e0b;background:var(--warning-color);border-radius:9999px;border-radius:var(--radius-full);box-shadow:inset 0 1px 2px #0000001a;flex:1 1;height:8px;transition:all .25s cubic-bezier(.4,0,.2,1);transition:all var(--transition-normal)}.pw-strength .pw-label{color:#0f172a;color:var(--text-color);font-size:.875rem;font-weight:600;white-space:nowrap}.pw-s0 .pw-bar{background:linear-gradient(90deg,#ef4444,#dc2626)}.pw-s1 .pw-bar{background:linear-gradient(90deg,#f59e0b,#d97706)}.pw-s2 .pw-bar{background:linear-gradient(90deg,#eab308,#ca8a04)}.pw-s3 .pw-bar{background:linear-gradient(90deg,#84cc16,#65a30d)}.pw-s4 .pw-bar{background:linear-gradient(90deg,#10b981,#059669)}.select-input{background:#fff;background:var(--card-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);color:#0f172a;color:var(--text-color);cursor:pointer;font-size:.9375rem;padding:12px 14px;transition:all .15s cubic-bezier(.4,0,.2,1);transition:all var(--transition-fast)}.select-input:hover{box-shadow:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;box-shadow:var(--shadow-sm)}.select-input:focus,.select-input:hover{border-color:#6366f1;border-color:var(--accent-color)}.select-input:focus{box-shadow:0 0 0 3px #eef2ff;box-shadow:0 0 0 3px var(--accent-light);outline:none}.compression-info{animation:fadeIn .15s cubic-bezier(.4,0,.2,1);animation:fadeIn var(--transition-fast);background:#eef2ff;background:var(--accent-light);border:1px solid #e2e8f0;border:1px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);margin-top:.5rem;padding:.75rem}.compression-info small{display:block;font-weight:500;line-height:1.5}.modal{inset:0;position:fixed;z-index:1000}.modal-overlay{background:#00000080;inset:0;position:absolute}.modal .modal-content{background:#fff;background:var(--card-bg);border-radius:16px 16px 0 0;bottom:0;box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;box-shadow:var(--shadow-xl);left:50%;max-height:85vh;overflow:auto;position:absolute;transform:translateX(-50%);width:min(860px,96%)}.modal .modal-header{padding:16px 20px 0}.modal .modal-body{padding:12px 20px 20px}.modal .modal-close{background:#0000;border:none;color:#666;cursor:pointer;font-size:28px;line-height:1;position:absolute;right:10px;top:10px}.modal .modal-close:hover{color:#000}.support-content{padding:1rem 0}.support-content>p{color:#0f172a;color:var(--text-color);line-height:1.6;margin-bottom:1.5rem}.support-content .method-toggle{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin:1.5rem 0}.method-panel{animation:fadeIn .25s cubic-bezier(.4,0,.2,1);animation:fadeIn var(--transition-normal);background:#f1f5f9;background:var(--secondary-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:16px;border-radius:var(--radius-lg);margin-top:1.5rem;padding:1.5rem}.method-panel h3{color:#6366f1;color:var(--accent-color);font-size:1.25rem;font-weight:700;margin:0 0 1rem}.wallet-address{margin-bottom:1.5rem}.wallet-address p{color:#0f172a;color:var(--text-color);margin-bottom:.5rem}.address-code{background:#fff;background:var(--card-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);color:#6366f1;color:var(--accent-color);display:block;font-family:Courier New,Courier,monospace;font-size:.875rem;font-weight:600;margin:.5rem 0 1rem;padding:1rem;word-break:break-all}.copy-btn{font-weight:600;padding:.75rem 1rem;transition:all .15s cubic-bezier(.4,0,.2,1);transition:all var(--transition-fast);width:100%}.copy-btn:hover{box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md);transform:translateY(-2px)}.qr-wrap{align-items:center;background:#fff;background:var(--card-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:16px;border-radius:var(--radius-lg);display:flex;justify-content:center;margin-top:1rem;padding:1.5rem}.qr{display:block;height:auto;max-width:200px;width:100%}.qr,.support-notice{border-radius:12px;border-radius:var(--radius-md)}.support-notice{background:#eef2ff;background:var(--accent-light);border:1px solid #e2e8f0;border:1px solid var(--border-color);margin-top:1.5rem;padding:1rem}.support-notice p{margin-bottom:.5rem}.support-notice p:last-child{font-size:1.125rem;margin-bottom:0;text-align:center}.muted{color:#64748b;color:var(--text-muted);font-size:.875rem}.about-content{padding:.5rem 0}.about-intro{background:#f1f5f9;background:var(--secondary-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);margin-bottom:1.5rem;padding:1rem}.about-intro p{color:#0f172a;color:var(--text-color);line-height:1.6;margin:0}.about-section{background:#f1f5f9;background:var(--secondary-bg);border:1px solid #e2e8f0;border:1px solid var(--border-color);border-radius:16px;border-radius:var(--radius-lg);margin-bottom:1.5rem;padding:1.25rem;transition:all .25s cubic-bezier(.4,0,.2,1);transition:all var(--transition-normal)}.about-section:hover{border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;box-shadow:var(--shadow-sm);transform:translateX(4px)}.about-section h3{color:#6366f1;color:var(--accent-color);font-size:1.125rem;font-weight:700;margin:0 0 1rem}.about-section ul{list-style:none;margin:0;padding-left:1.5rem}.about-section ul li{color:#0f172a;color:var(--text-color);line-height:1.6;margin-bottom:.75rem;position:relative}.about-section ul li:before{color:#6366f1;color:var(--accent-color);content:"▸";font-weight:700;left:-1.25rem;position:absolute}.about-section ul li:last-child{margin-bottom:0}.about-footer{border-top:2px solid #e2e8f0;border-top:2px solid var(--border-color);margin-top:2rem;padding:1rem;text-align:center}.about-footer p{margin:0}.compression-details{display:flex;flex-direction:column;gap:1rem;margin-top:1rem}.compression-item{background:#fff;background:var(--card-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);padding:1rem;transition:all .15s cubic-bezier(.4,0,.2,1);transition:all var(--transition-fast)}.compression-item:hover{border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;box-shadow:var(--shadow-sm);transform:translateY(-2px)}.compression-item.recommended{background:#eef2ff;background:var(--accent-light);border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md)}.compression-item h4{color:#0f172a;color:var(--text-color);font-size:1rem;font-weight:700;margin:0 0 .75rem}.compression-item.recommended h4{color:#6366f1;color:var(--accent-color)}.compression-item ul{list-style:none;margin:0;padding-left:1.5rem}.compression-item ul li{color:#0f172a;color:var(--text-color);font-size:.9375rem;line-height:1.5;margin-bottom:.5rem;position:relative}.compression-item ul li:before{color:#6366f1;color:var(--accent-color);content:"•";font-weight:700;left:-1.25rem;position:absolute}.compression-item ul li:last-child{margin-bottom:0}.compression-example{background:#f1f5f9;background:var(--secondary-bg);border:1px solid #e2e8f0;border:1px solid var(--border-color);border-radius:12px;border-radius:var(--radius-md);margin-top:1rem;padding:1rem}.compression-example p{color:#0f172a;color:var(--text-color);font-weight:600;margin:0 0 .75rem}.compression-example ul{list-style:none;margin:0;padding-left:1.5rem}.compression-example ul li{color:#64748b;color:var(--text-muted);font-family:Courier New,Courier,monospace;font-size:.9375rem;line-height:1.5;margin-bottom:.5rem;position:relative}.compression-example ul li:before{color:#6366f1;color:var(--accent-color);content:"▸";font-weight:700;left:-1.25rem;position:absolute}.compression-example ul li:last-child{margin-bottom:0}[data-theme=dark]{--bg-color:#0f172a;--bg-gradient:linear-gradient(135deg,#4c51bf,#6b46c1);--text-color:#f1f5f9;--text-muted:#94a3b8;--text-light:#64748b;--card-bg:#1e293b;--navbar-bg:linear-gradient(135deg,#4c51bf,#6b46c1);--navbar-text:#fff;--secondary-bg:#334155;--accent-color:#818cf8;--accent-hover:#6366f1;--accent-light:#312e81;--accent-gradient:linear-gradient(135deg,#818cf8,#a78bfa);--success-light:#064e3b;--warning-light:#78350f;--danger-light:#7f1d1d;--border-color:#334155;--border-light:#475569;--shadow-glow:0 0 20px #818cf84d}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-feature-settings:"rlig" 1,"calt" 1;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f8fafc;background-color:var(--bg-color);color:#0f172a;color:var(--text-color);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;transition:background-color .25s cubic-bezier(.4,0,.2,1),color .25s cubic-bezier(.4,0,.2,1);transition:background-color var(--transition-normal),color var(--transition-normal)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f5f9;background:var(--secondary-bg)}::-webkit-scrollbar-thumb{background:#e2e8f0;background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#64748b;background:var(--text-muted)}.app{display:flex;flex-direction:column;min-height:100vh}.container{margin:0 auto;max-width:1280px;max-width:var(--container-max-width);padding:0 1.5rem}@media (max-width:768px){.container{padding:0 1rem}}h1,h2,h3,h4,h5,h6{color:#0f172a;color:var(--text-color);font-weight:600;letter-spacing:-.025em;line-height:1.2;margin-bottom:1rem}h1{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#0f172a,#6366f1);background:linear-gradient(135deg,var(--text-color),var(--accent-color));background-clip:text;-webkit-background-clip:text;font-size:clamp(2rem,5vw,3.5rem);font-weight:800}h2{font-size:clamp(1.5rem,4vw,2.5rem);font-weight:700}h3{font-size:clamp(1.25rem,3vw,1.875rem)}h4{font-size:1.25rem}p{color:#64748b;color:var(--text-muted);line-height:1.7}.btn{align-items:center;border:none;border-radius:9999px;border-radius:var(--radius-full);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md);cursor:pointer;display:inline-flex;font-family:inherit;font-size:.9375rem;font-weight:600;gap:.5rem;justify-content:center;line-height:1;overflow:hidden;padding:.875rem 1.75rem;position:relative;text-decoration:none;transition:all .25s cubic-bezier(.4,0,.2,1);transition:all var(--transition-normal);white-space:nowrap}.btn:before{background:linear-gradient(90deg,#0000,#ffffff4d,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;transition:left .6s;width:100%}.btn:hover:before{left:100%}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);background:var(--accent-gradient);border:2px solid #0000;color:#fff}.btn-primary:hover{box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a,0 0 20px #667eea4d;box-shadow:var(--shadow-xl),var(--shadow-glow);transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:#fff;background:var(--card-bg);border:2px solid #e2e8f0;border:2px solid var(--border-color);color:#0f172a;color:var(--text-color)}.btn-secondary:hover{background:#f1f5f9;background:var(--secondary-bg);border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -4px 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#0000001a;box-shadow:var(--shadow-sm);color:#0f172a;color:var(--text-color);font-family:inherit;font-size:.9375rem;margin-bottom:1rem;outline:none;padding:.875rem 1.125rem;transition:all .25s cubic-bezier(.4,0,.2,1);transition:all var(--transition-normal);width:100%}input:focus,select:focus,textarea:focus{border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 0 0 4px #eef2ff,0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:0 0 0 4px var(--accent-light),var(--shadow-md);transform:translateY(-1px)}input:hover,select:hover,textarea:hover{border-color:#6366f1;border-color:var(--accent-color);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;box-shadow:var(--shadow-md)}input::placeholder,textarea::placeholder{color:#64748b;color:var(--text-muted);opacity:.7}.form-group{margin-bottom:1.5rem}.form-group 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