:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{width:100%;margin:0 auto;text-align:center}.how-it-works{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.how-it-works-header{text-align:center;margin-bottom:40px;color:#fff}.how-it-works-header h1{font-size:2.5rem;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.how-it-works-header p{font-size:1.2rem;opacity:.9;font-weight:300}.how-it-works-container{max-width:1200px;margin:0 auto;background:#fff;border-radius:20px;box-shadow:0 20px 40px #0000001a;overflow:hidden}.how-it-works-container section{padding:40px;border-bottom:1px solid #f0f0f0}.how-it-works-container section:last-child{border-bottom:none}.how-it-works-container h2{font-size:2rem;color:#333;margin-bottom:20px;display:flex;align-items:center;gap:10px}.how-it-works-container h3{font-size:1.4rem;color:#444;margin-bottom:15px;display:flex;align-items:center;gap:8px}.how-it-works-container p{line-height:1.6;color:#666;margin-bottom:15px}.overview-section{background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.overview-section p{font-size:1.1rem;text-align:center;max-width:800px;margin:0 auto}.process-steps{display:grid;gap:30px;margin-top:30px}.step{display:flex;gap:20px;align-items:flex-start;padding:25px;background:#f8f9fa;border-radius:15px;border-left:5px solid #667eea;transition:all .3s ease}.step:hover{transform:translateY(-2px);box-shadow:0 10px 25px #0000001a}.step-number{min-width:50px;height:50px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;box-shadow:0 5px 15px #667eea4d}.step-content{flex:1}.technical-detail{background:#2d3748;color:#68d391;padding:15px;border-radius:8px;margin-top:15px;font-family:Courier New,monospace;font-size:.9rem;overflow-x:auto}.security-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:30px}.security-feature{background:#fff;padding:25px;border-radius:15px;border:2px solid #e2e8f0;transition:all .3s ease}.security-feature:hover{border-color:#667eea;box-shadow:0 10px 25px #667eea1a}.security-feature ul{list-style:none;padding:0}.security-feature li{color:#555;position:relative;padding:8px 0 8px 25px}.security-feature li:before{content:"✓";position:absolute;left:0;color:#48bb78;font-weight:700}.use-cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px;margin-top:30px}.use-case{background:linear-gradient(135deg,#ffecd2,#fcb69f);padding:25px;border-radius:15px;transition:all .3s ease}.use-case:hover{transform:translateY(-3px);box-shadow:0 15px 30px #0000001a}.use-case h3{color:#2d3748;margin-bottom:15px}.use-case p{color:#4a5568}.tech-stack{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:30px}.tech-item{background:#f7fafc;padding:25px;border-radius:15px;border-left:5px solid #38b2ac}.tech-item ul{list-style:none;padding:0}.tech-item li{color:#555;position:relative;padding:5px 0 5px 20px}.tech-item li:before{content:"▶";position:absolute;left:0;color:#38b2ac;font-size:.8rem}.repo-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:30px}.repo-link{background:#fff;padding:30px;border-radius:15px;border:2px solid #e2e8f0;text-align:center;transition:all .3s ease}.repo-link:hover{border-color:#667eea;box-shadow:0 15px 30px #667eea1a}.repo-button{display:inline-block;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:12px 24px;border-radius:25px;text-decoration:none;font-weight:600;margin-top:15px;transition:all .3s ease}.repo-button:hover{transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}.repo-button.npm{background:linear-gradient(135deg,#cb3837,#e55353)}.repo-button.npm:hover{box-shadow:0 10px 20px #cb38374d}.installation-guide{background:#f7fafc;padding:30px;border-radius:15px;margin-top:30px;border-left:5px solid #48bb78}.code-block{background:#2d3748;color:#68d391;padding:20px;border-radius:10px;margin:15px 0;font-family:Courier New,monospace;overflow-x:auto}.code-block code{display:block;white-space:pre;font-size:.9rem}.footer-section{background:linear-gradient(135deg,#2d3748,#4a5568);color:#fff}.footer-content{text-align:center}.footer-content p{color:#e2e8f0;margin-bottom:20px;padding:20px;background:#ffffff1a;border-radius:10px;border-left:4px solid #f56565}.footer-links{display:flex;justify-content:center;gap:30px;flex-wrap:wrap}.footer-links a{color:#90cdf4;text-decoration:none;font-weight:500;transition:color .3s ease}.footer-links a:hover{color:#63b3ed}@media (max-width: 768px){.how-it-works{padding:10px}.how-it-works-header h1{font-size:2rem}.how-it-works-container section{padding:20px}.step{flex-direction:column;text-align:center}.step-number{align-self:center}.footer-links{flex-direction:column;gap:15px}}@media (max-width: 480px){.how-it-works-header h1{font-size:1.8rem}.how-it-works-header p{font-size:1rem}.how-it-works-container h2{font-size:1.5rem}.how-it-works-container h3{font-size:1.2rem}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-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:#333}.app{min-height:100vh;padding:20px}.app-header{text-align:center;margin-bottom:40px;color:#fff}.app-header h1{font-size:3rem;margin-bottom:10px;text-shadow:0 2px 4px rgba(0,0,0,.3)}.app-header p{font-size:1.2rem;opacity:.9;max-width:600px;margin:0 auto 20px}.app-nav{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-top:20px}.nav-button,.nav-link{background:#fff3;color:#fff;padding:10px 20px;border:2px solid rgba(255,255,255,.3);border-radius:25px;text-decoration:none;font-weight:600;font-size:.9rem;transition:all .3s ease;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav-button:hover,.nav-link:hover{background:#ffffff4d;border-color:#ffffff80;transform:translateY(-2px);box-shadow:0 5px 15px #0003}.nav-button{font-family:inherit}@media (max-width: 768px){.app-nav{flex-direction:column;align-items:center;gap:15px}.nav-button,.nav-link{min-width:200px;text-align:center}}@keyframes pulse{0%{box-shadow:0 0 #48bb78b3}70%{box-shadow:0 0 0 10px #48bb7800}to{box-shadow:0 0 #48bb7800}}.install-button{position:relative}.install-button:hover{background:linear-gradient(135deg,#38a169,#2f855a)!important}.app-container{max-width:1200px;margin:0 auto;background:#fff;border-radius:20px;box-shadow:0 20px 40px #0000001a;overflow:hidden}.mode-toggle{display:flex;background:#f8f9fa;border-bottom:1px solid #e9ecef}.mode-toggle button{flex:1;padding:20px;border:none;background:transparent;font-size:1.1rem;font-weight:600;color:#6c757d;cursor:pointer;transition:all .3s ease}.mode-toggle button.active{background:#fff;color:#667eea;border-bottom:3px solid #667eea}.mode-toggle button:hover:not(.active){background:#e9ecef;color:#495057}.error-message{background:#f8d7da;color:#721c24;padding:15px 20px;margin:20px;border-radius:10px;border:1px solid #f5c6cb;text-align:center}.generate-section{padding:40px}.generate-section h2{text-align:center;margin-bottom:30px;color:#495057;font-size:2rem}.input-group{margin-bottom:25px}.input-group label{display:block;margin-bottom:8px;font-weight:600;color:#495057}.input-group input,.input-group textarea{width:100%;padding:15px;border:2px solid #e9ecef;border-radius:10px;font-size:1rem;transition:border-color .3s ease;font-family:inherit}.input-group input:focus,.input-group textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.input-group textarea{resize:vertical;min-height:80px}.shares-config{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:30px}.generate-btn{width:100%;padding:18px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:10px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;margin-bottom:30px}.generate-btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}.generate-btn:active{transform:translateY(0)}.shares-section{border-top:1px solid #e9ecef;padding-top:30px}.shares-section h3{text-align:center;margin-bottom:15px;color:#495057}.shares-section p{text-align:center;color:#6c757d;margin-bottom:30px}.qr-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.qr-item{text-align:center;padding:25px;background:#f8f9fa;border-radius:15px;border:1px solid #e9ecef}.qr-item h4{margin-bottom:20px;color:#495057}.qr-item img{max-width:100%;height:auto;border-radius:10px;margin-bottom:20px;box-shadow:0 5px 15px #0000001a}.qr-item button{background:#28a745;color:#fff;border:none;padding:12px 20px;border-radius:8px;cursor:pointer;font-weight:600;transition:background-color .3s ease;margin-bottom:15px}.qr-item button:hover{background:#218838}.share-text{text-align:left}.share-text small{display:block;color:#6c757d;margin-bottom:5px}.share-text code{background:#e9ecef;padding:5px 8px;border-radius:4px;font-size:.9rem;word-break:break-all}.reconstruct-section{padding:40px}.reconstruct-section h2{text-align:center;margin-bottom:30px;color:#495057;font-size:2rem}.reconstruction-controls{text-align:center;margin-bottom:30px}.reconstruction-controls button{background:#17a2b8;color:#fff;border:none;padding:15px 30px;border-radius:10px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background-color .3s ease;margin-bottom:15px}.reconstruction-controls button:hover{background:#138496}.reconstruction-controls p{color:#6c757d}.share-input-group{background:#f8f9fa;padding:25px;border-radius:15px;margin-bottom:25px;border:1px solid #e9ecef}.share-input-group h4{margin-bottom:20px;color:#495057}.share-inputs{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.remove-btn{background:#dc3545;color:#fff;border:none;padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600;transition:background-color .3s ease}.remove-btn:hover{background:#c82333}.reconstruct-btn{width:100%;padding:18px;background:linear-gradient(135deg,#28a745,#20c997);color:#fff;border:none;border-radius:10px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;margin-bottom:30px}.reconstruct-btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px #28a7454d}.result-section{border-top:1px solid #e9ecef;background:linear-gradient(135deg,#f8fff9,#e8f5e8);border-radius:15px;padding:30px;margin-top:20px;border:2px solid #28a745}.result-section h3{text-align:center;margin-bottom:20px;color:#28a745;font-size:1.8rem;text-shadow:0 1px 2px rgba(40,167,69,.2)}.mnemonic-display{text-align:center}.mnemonic-display textarea{width:100%;padding:20px;border:2px solid #28a745;border-radius:10px;font-size:1.1rem;font-family:Courier New,monospace;background:#f8fff9;margin-bottom:20px;resize:none;box-shadow:0 4px 8px #28a7451a;transition:all .3s ease}.mnemonic-display textarea:focus{outline:none;box-shadow:0 6px 12px #28a74533;transform:translateY(-2px)}.copy-btn{background:#6f42c1;color:#fff;border:none;padding:15px 30px;border-radius:10px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 8px #6f42c133}.copy-btn:hover{background:#5a32a3;transform:translateY(-2px);box-shadow:0 6px 12px #6f42c14d}.copy-btn:active{transform:translateY(0)}@media (max-width: 768px){.app{padding:10px}.app-header h1{font-size:2rem}.generate-section,.reconstruct-section{padding:20px}.shares-config,.share-inputs,.qr-grid{grid-template-columns:1fr}}.encrypted-shares-strings{margin-bottom:40px;border-top:1px solid #e9ecef;padding-top:30px}.encrypted-shares-strings h4{text-align:center;margin-bottom:20px;color:#495057}.share-string-item{transition:all .3s ease}.share-string-item:hover{background:#e9ecef!important;transform:translateY(-2px);box-shadow:0 5px 15px #0000001a}.qr-section{border-top:1px solid #e9ecef;padding-top:30px}.qr-section h4{text-align:center;margin-bottom:20px;color:#495057}.qr-section h5{margin-bottom:15px;color:#495057;font-size:1rem}button[onclick*=generatePDF]:hover{background:#c82333!important;transform:translateY(-2px);box-shadow:0 5px 15px #dc35454d}button[onclick*=clipboard]:hover{background:#5a6268!important}.password-mode-selector{display:flex;flex-direction:row;gap:0;margin-bottom:15px;padding:15px;background:linear-gradient(135deg,#667eea0d,#764ba20d);border:1px solid rgba(102,126,234,.2);border-radius:12px;align-items:stretch;justify-content:space-between}.password-mode-selector label{display:flex;align-items:center;justify-content:center;cursor:pointer;margin:0 10px 0 0;padding:8px 12px;border-radius:8px;transition:all .2s ease;color:#495057;font-weight:500;background:#fff9;border:1px solid rgba(102,126,234,.1);min-height:40px;flex:1;text-align:center}.password-mode-selector label:last-child{margin-right:0}.password-mode-selector label:hover{background:#667eea1a;border-color:#667eea4d;transform:translateY(-1px)}.password-mode-selector input[type=radio]{margin-right:8px;margin-top:0;accent-color:#667eea;width:18px;height:18px}.password-mode-selector label:has(input[type=radio]:checked){background:linear-gradient(135deg,#667eea26,#764ba226);border-color:#667eea;color:#495057;font-weight:600;box-shadow:0 2px 8px #667eea33}.password-mode-selector input[type=radio]:checked+span,.password-mode-selector input[type=radio]:checked~*{color:#495057;font-weight:600}@media (max-width: 768px){.password-mode-selector{flex-direction:column;gap:8px;justify-content:stretch}.password-mode-selector label{min-height:44px;padding:10px 14px;margin-right:0;margin-bottom:8px}.password-mode-selector label:last-child{margin-bottom:0}}