:root{--primary-color:#0f172a;--secondary-color:#1e293b;--accent-color:#3b82f6;--accent-hover:#2563eb;--text-primary:#f8fafc;--text-secondary:#94a3b8;--bg-main:#020617;--bg-card:#0f172a;--border-color:#334155;--danger:#ef4444;--success:#10b981}body{background-color:var(--bg-main);color:var(--text-primary);margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}*{box-sizing:border-box}h1,h2,h3,h4,h5,h6{color:var(--text-primary);margin-top:0}a{color:var(--accent-color);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}.app-container{flex-direction:column;min-height:100vh;display:flex}.main-header{background-color:var(--secondary-color);border-bottom:1px solid var(--border-color);padding:1rem 0}.header-content{justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 2rem;display:flex}.logo{color:var(--text-primary);font-size:1.5rem;font-weight:700}.logo:hover{color:var(--accent-color);text-decoration:none}.main-nav{gap:1.5rem;display:flex}.main-nav a{color:var(--text-secondary);font-weight:500;transition:color .2s}.main-nav a:hover,.main-nav a.active{color:var(--accent-color);text-decoration:none}.main-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:2rem}.breadcrumb{margin-bottom:2rem}.breadcrumb a{color:var(--text-secondary);align-items:center;font-size:.9rem;display:inline-flex}.breadcrumb a:hover{color:var(--text-primary);text-decoration:none}.main-footer{text-align:center;border-top:1px solid var(--border-color);color:var(--text-secondary);background-color:var(--secondary-color);padding:2rem;font-size:.9rem}@media 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var(--border-color);border-radius:.5rem;margin-bottom:1.5rem;padding:1rem}.result-item{border-bottom:1px solid var(--border-color);justify-content:space-between;margin-bottom:.5rem;padding-bottom:.5rem;display:flex}.result-item:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.monospace{color:var(--accent-color);font-family:monospace;font-size:1.1rem}.btn-outline{border:1px solid var(--accent-color);color:var(--accent-color);background:0 0;width:100%;margin-top:1rem}.btn-outline:hover{background:var(--accent-color);color:#fff}.btn-toggle-steps{border:1px dashed var(--accent-color);width:100%;color:var(--accent-color);background-color:#0000;border-radius:.5rem;padding:.75rem}.btn-toggle-steps:hover{background-color:#3b82f61a}.step-section{border-bottom:1px solid var(--border-color);margin-bottom:1.5rem;padding-bottom:1.5rem}.step-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.step-section h4{color:var(--accent-color);margin-bottom:1rem}code{background-color:var(--bg-main);color:#e2e8f0;border-radius:.25rem;padding:.2rem .4rem;font-family:monospace}.highlight{color:var(--success);font-weight:700}.sbox-grid{grid-template-columns:1fr 1fr;gap:1rem;margin:1rem 0;display:grid}.sbox-item{background-color:var(--bg-main);border:1px solid var(--border-color);border-radius:.5rem;padding:1rem}.sbox-item h5{color:var(--text-secondary);margin-top:0}.mt-4{margin-top:1rem}.state-matrix{text-align:center;margin-bottom:1rem;margin-right:1.5rem;display:inline-block}.state-matrix h5{color:var(--text-secondary);margin-bottom:.5rem}.matrix-grid{background-color:var(--border-color);border:2px solid var(--border-color);border-radius:.25rem;grid-template-rows:1fr 1fr;grid-template-columns:1fr 1fr;gap:2px;display:grid;overflow:hidden}.matrix-grid div{background-color:var(--bg-main);color:var(--text-primary);justify-content:center;align-items:center;padding:.5rem;font-family:monospace;font-size:1.1rem;font-weight:500;display:flex}.matrix-row-scroll{flex-wrap:wrap;gap:1rem;display:flex}.home-page{flex-direction:column;gap:3rem;display:flex}.hero{text-align:center;max-width:800px;margin:0 auto}.hero h1{background:linear-gradient(90deg,#60a5fa,#3b82f6);color:#0000;-webkit-background-clip:text;margin-bottom:1rem;font-size:2.5rem}.hero p{color:var(--text-secondary);margin-bottom:1.5rem;font-size:1.1rem}.disclaimer{color:#fca5a5;background-color:#ef44441a;border:1px solid #ef444433;border-radius:.5rem;padding:1rem;font-size:.9rem}.algorithm-cards{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;display:grid}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:.75rem;flex-direction:column;padding:1.5rem;transition:transform .2s,box-shadow 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