:root{--bg:#140a30;--bg2:#1d1042;--ink:#efeaff;--mute:#a79fcb;--pink:#ff2e9a;--cyan:#22e4f0;--amber:#ffb020;--line:#3a2a73}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Hind",system-ui,sans-serif}
h1,h2,h3{font-family:"Rajdhani",system-ui,sans-serif;line-height:1.1;margin:0 0 .5em;letter-spacing:.01em}
h1{font-size:clamp(3rem,10vw,6.5rem);font-weight:700}h2{font-size:clamp(2rem,5vw,3rem)}h3{font-size:1.4rem;color:var(--cyan)}
a{color:var(--cyan)}:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
nav{position:sticky;top:0;z-index:5;background:#140a30ee;backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;gap:1rem;overflow-x:auto;padding:.7rem 1rem;white-space:nowrap}
nav b{font-family:Rajdhani,sans-serif;font-size:1.3rem;color:var(--pink);margin-right:auto}nav a{text-decoration:none;color:var(--ink)}
.hero{position:relative;min-height:88vh;display:flex;flex-direction:column;justify-content:center;padding:4rem 1.2rem 14rem;overflow:hidden}
.hero img{position:absolute;inset:auto 0 0 0;width:100%;height:50%;object-fit:cover;object-position:bottom}
.hero>*{position:relative}.hero h1 span{color:var(--pink);text-shadow:0 0 28px var(--pink)}
.hero p{max-width:34rem;color:var(--mute);font-size:1.15rem}
.btn{display:inline-block;background:var(--pink);color:#fff;padding:.8rem 1.5rem;border-radius:4px;text-decoration:none;font-weight:600;margin:.4rem .5rem .4rem 0}.btn.o{background:none;border:2px solid var(--cyan);color:var(--cyan)}
section{max-width:1040px;margin:auto;padding:4.5rem 1.2rem}section:nth-of-type(even){background:var(--bg2);max-width:none}section:nth-of-type(even)>div{max-width:1040px;margin:auto}
.lead{color:var(--mute);max-width:42rem}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{border:1px solid var(--line);border-left:4px solid var(--pink);padding:1.1rem 1.2rem;background:#1a0e3a}
.card:nth-child(2n){border-left-color:var(--cyan)}.card:nth-child(3n){border-left-color:var(--amber)}
.card p,.card li{color:var(--mute);margin:.3em 0}.card ul{padding-left:1.1rem;margin:0}
.tw{overflow-x:auto;margin:1rem 0}table{border-collapse:collapse;width:100%;min-width:480px}
th,td{text-align:left;padding:.6rem .8rem;border-bottom:1px solid var(--line)}th{color:var(--amber);font-family:Rajdhani,sans-serif;font-size:1.1rem}
.tot td{font-weight:700;color:var(--cyan)}
svg.arch{width:100%;height:auto;background:#10082a;border:1px solid var(--line)}
.calc{border:1px solid var(--cyan);padding:1.2rem;margin-top:1rem}.calc input{width:100%;accent-color:var(--pink)}.calc output{display:block;font:700 1.6rem Rajdhani,sans-serif;color:var(--amber)}
.tl{border-left:3px solid var(--pink);padding-left:1.2rem}.tl h3{margin-top:1.2rem}
.note{color:var(--amber);font-size:.95rem}
footer{text-align:center;padding:3rem 1rem;color:var(--mute);border-top:1px solid var(--line)}
@media (prefers-reduced-motion:no-preference){.hero h1 span{animation:glow 2.4s ease-in-out infinite alternate}@keyframes glow{to{text-shadow:0 0 6px var(--pink)}}}