:root{--bg:#020617;--bg-elevated:#02081f;--accent:#22c55e;--accent-soft:rgba(34,197,94,.12);--accent-strong:#16a34a;--text:#e5e7eb;--text-muted:#9ca3af;--border-subtle:rgba(148,163,184,.25)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,sans-serif;background:radial-gradient(circle at top,#0b1120 0,#020617 55%,#000);color:var(--text);min-height:100vh}a{color:inherit;text-decoration:none}.container{width:min(1100px,100% - 32px);margin:0 auto}header{position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:linear-gradient(to bottom,#0f172ae6,#0f172a99);border-bottom:1px solid rgba(148,163,184,.3)}nav{display:flex;align-items:center;justify-content:space-between;padding:10px 0}.logo{font-weight:700;letter-spacing:.02em;display:flex;align-items:center;gap:6px}.nav-links{list-style:none;display:flex;gap:16px;padding:0;margin:0;font-size:.9rem}.nav-links a{padding:4px 10px;border-radius:999px;color:var(--text-muted);transition:background .2s ease,color .2s ease}.nav-links a:hover{background:#0f172ae6;color:var(--text)}.nav-links a.active{background:var(--accent-soft);color:var(--accent)}main{padding:32px 0 40px}.page-title{font-size:clamp(1.8rem,3vw,2.3rem);margin:4px 0}.page-subtitle{margin-top:0;color:var(--text-muted);max-width:640px}.hero{margin-bottom:24px}.disclaimer{margin-top:18px;padding:14px 16px;border-radius:12px;border:1px solid rgba(248,250,252,.12);background:radial-gradient(circle at top left,rgba(248,250,252,.08),transparent 55%),#0f172ae6;font-size:.9rem}.disclaimer-title{font-weight:600;margin-bottom:6px}.disclaimer-text{color:var(--text-muted);line-height:1.6}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:24px;margin-bottom:24px}.card{background:radial-gradient(circle at top left,rgba(34,197,94,.08),transparent 60%),#0f172af2;border-radius:16px;padding:16px 18px;border:1px solid var(--border-subtle);box-shadow:0 18px 40px #0f172ae6}.card-title{margin:0 0 6px;font-size:1.05rem}.card-content{margin:0 0 12px;font-size:.94rem;color:var(--text-muted);line-height:1.6}.btn{display:inline-block;padding:8px 16px;border-radius:999px;border:1px solid rgba(34,197,94,.5);background:linear-gradient(120deg,var(--accent),var(--accent-strong));color:#0b1120;font-size:.9rem;font-weight:600;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease}.btn:hover{transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 12px 30px #22c55e59}.feature-list{list-style:none;padding-left:0;margin:0;color:var(--text-muted);font-size:.93rem}.feature-list li{margin-bottom:6px}.glossary-controls{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}.glossary-controls input,.glossary-controls select,input,select{background:#020617;border-radius:10px;border:1px solid rgba(148,163,184,.6);color:var(--text);padding:8px 10px;font-size:.9rem}.glossary-controls input{flex:1 1 200px}.glossary-controls select{flex:0 0 190px}.glossary-list{margin-top:4px}.glossary-item{padding:10px 0;border-bottom:1px solid rgba(30,41,59,.8)}.glossary-term{font-weight:600}.glossary-meta{font-size:.78rem;color:var(--text-muted)}.glossary-definition{margin-top:4px;font-size:.9rem;color:var(--text-muted)}.calc-result{margin-top:8px;font-size:.9rem;color:var(--accent)}canvas{margin-top:14px;background:#020617;border-radius:12px;border:1px solid rgba(30,64,175,.6)}footer{border-top:1px solid rgba(30,41,59,.9);background:radial-gradient(circle at top,#0f172af2,#020617 52%);padding:14px 0 16px;font-size:.82rem;color:var(--text-muted)}.footer-content{display:flex;justify-content:space-between;gap:16px}.footer-section h3{margin:0 0 4px;font-size:.9rem}.footer-section a{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:2px}.footer-section a:hover{color:var(--text)}.footer-bottom{margin-top:10px;text-align:left}@media(max-width:720px){.nav-links{display:none}header{position:static}.card{padding:14px}}