@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Source+Sans+3:ital,wght@0,300;0,400;0,600;1,300&family=Courier+Prime:wght@400;700&display=swap');
:root{--bloc:#080e0c;--dark:#0c1410;--panel:#101a14;--steel:#1a2820;--teal:#0a8870;--teal2:#0cc890;--chrome:#c8d8d0;--lime:#20e890;--ivory:#e8f4f0;--text:#90b8a8;--muted:#507060;--red:#c03040;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;}
body{font-family:'Source Sans 3',sans-serif;background:var(--bloc);color:var(--text);min-height:100vh;background-image:repeating-linear-gradient(0deg,transparent,transparent 39px,rgba(10,136,112,.04) 39px,rgba(10,136,112,.04) 40px);}
#prog{position:fixed;top:0;left:0;height:3px;background:linear-gradient(to right,var(--teal),var(--lime));z-index:1000;width:0%;}
#bt{position:fixed;bottom:28px;right:28px;width:44px;height:44px;background:var(--steel);border:1px solid var(--teal);color:var(--lime);font-size:.9rem;border-radius:3px;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .3s,transform .25s;z-index:999;text-decoration:none;}
#bt.on{opacity:1;pointer-events:auto;}#bt:hover{transform:translateY(-3px);}
.nav{background:var(--dark);border-bottom:3px solid var(--teal);padding:10px 28px;display:flex;align-items:center;justify-content:space-between;}
.nav .bc{font-family:'Courier Prime',monospace;font-size:.6rem;color:rgba(10,200,144,.55);letter-spacing:.12em;}
.nav .bc .s{color:rgba(10,200,144,.2);margin:0 8px;}
.nav .dept{font-family:'Rajdhani',sans-serif;font-size:.88rem;font-weight:600;color:var(--teal2);letter-spacing:.15em;}
.hero{position:relative;min-height:540px;display:flex;align-items:flex-end;overflow:hidden;}
.op-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 35%,rgba(10,136,112,.12) 0%,transparent 55%),linear-gradient(170deg,#04080a 0%,#08100c 30%,#0c1610 60%,#08100a 100%);}
.op-light{position:absolute;top:0;left:50%;transform:translateX(-50%);width:600px;height:280px;background:radial-gradient(ellipse at 50% 0%,rgba(200,240,220,.05) 0%,transparent 65%);pointer-events:none;}
.grid-lines{position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent,transparent 59px,rgba(10,136,112,.04) 59px,rgba(10,136,112,.04) 60px);}
.bis-svg{position:absolute;bottom:65px;left:50%;transform:translateX(-50%);width:min(640px,85vw);filter:drop-shadow(0 12px 40px rgba(0,0,0,.95));}
.ground{position:absolute;bottom:0;left:0;right:0;height:85px;background:linear-gradient(to top,rgba(8,14,12,.98) 0%,rgba(8,14,12,.7) 60%,transparent);}
.hero-txt{position:relative;z-index:2;width:100%;padding:40px 44px 52px;background:linear-gradient(to top,rgba(6,10,8,.98) 0%,rgba(6,10,8,.65) 55%,transparent);}
.hero-eyebrow{font-family:'Courier Prime',monospace;font-size:.62rem;color:var(--teal2);letter-spacing:.22em;margin-bottom:10px;}
.hero h1{font-family:'Rajdhani',sans-serif;font-size:clamp(4rem,9vw,7.5rem);font-weight:700;color:var(--ivory);line-height:.88;letter-spacing:.04em;}
.hero h1 em{display:block;font-size:.25em;font-style:normal;color:var(--teal2);letter-spacing:.28em;margin-bottom:6px;font-family:'Courier Prime',monospace;}
.hero-sub{margin-top:12px;font-size:1.05rem;color:rgba(232,244,240,.72);max-width:540px;line-height:1.78;font-weight:300;}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{padding:4px 14px;border:1.5px solid;font-family:'Courier Prime',monospace;font-size:.6rem;letter-spacing:.1em;border-radius:2px;}
.ch-t{border-color:rgba(10,136,112,.55);color:var(--teal2);}
.ch-r{border-color:rgba(192,48,64,.4);color:#e07080;}
.main{max-width:1100px;margin:0 auto;padding:0 24px 80px;}
.intro{background:var(--panel);border-left:5px solid var(--teal);padding:24px 40px;margin-bottom:36px;}
.intro p{font-size:1.04rem;color:var(--chrome);line-height:1.85;}
.intro strong{color:var(--teal2);}
.grid{display:grid;grid-template-columns:1fr 320px;gap:32px;}
.sh{font-family:'Rajdhani',sans-serif;font-size:1.65rem;font-weight:700;color:var(--teal2);margin:44px 0 14px;padding-bottom:8px;border-bottom:2px solid rgba(10,136,112,.25);letter-spacing:.04em;display:flex;align-items:center;gap:12px;}
.sh:first-child{margin-top:0;}
.sh-cross{color:var(--teal);font-size:1em;}
.mc p{font-size:1rem;color:var(--text);line-height:1.85;margin-bottom:14px;}
.mc strong{color:var(--chrome);}
.types{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0;}
.ty{background:var(--panel);border:1px solid rgba(10,136,112,.2);border-top:3px solid var(--teal);padding:13px;opacity:0;transform:translateY(12px);transition:opacity .5s,transform .5s;}
.ty.on{opacity:1;transform:translateY(0);}
.ty h4{font-family:'Rajdhani',sans-serif;font-size:.97rem;font-weight:700;color:var(--teal2);margin-bottom:4px;letter-spacing:.04em;}
.ty p{font-size:.82rem!important;color:var(--muted)!important;margin:0!important;line-height:1.48!important;}
.dt{width:100%;border-collapse:collapse;margin:16px 0;font-size:.86rem;}
.dt thead th{background:var(--steel);color:var(--teal2);padding:9px 13px;text-align:left;font-family:'Courier Prime',monospace;font-size:.63rem;letter-spacing:.1em;border-bottom:2px solid var(--teal);}
.dt td{padding:7px 13px;border-bottom:1px solid rgba(10,136,112,.1);color:var(--text);}
.dt tr:hover td{background:rgba(10,136,112,.04);}
.dt td:first-child{font-family:'Courier Prime',monospace;color:var(--teal2);font-size:.77rem;}
.tl{position:relative;padding-left:26px;margin:14px 0;}
.tl::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--teal),var(--lime),transparent);}
.tl-item{position:relative;margin-bottom:17px;opacity:0;transform:translateX(-10px);transition:opacity .45s,transform .45s;}
.tl-item.on{opacity:1;transform:translateX(0);}
.tl-item::before{content:'+';position:absolute;left:-21px;top:3px;font-size:.75rem;color:var(--teal);font-weight:700;}
.tl-yr{font-family:'Courier Prime',monospace;font-size:.66rem;color:var(--teal2);letter-spacing:.15em;margin-bottom:1px;}
.tl-item p{font-size:.97rem!important;margin:0!important;line-height:1.6!important;}
.vocab{list-style:none;}
.vocab li{display:flex;gap:12px;padding:8px 0;border-bottom:1px solid rgba(10,136,112,.1);opacity:0;transform:translateX(-8px);transition:opacity .4s,transform .4s;}
.vocab li.on{opacity:1;transform:translateX(0);}
.vocab li:last-child{border-bottom:none;}
.vt{font-family:'Courier Prime',monospace;font-size:.71rem;color:var(--teal2);min-width:130px;flex-shrink:0;}
.vd{font-size:.92rem;color:var(--text);}
.scard{background:var(--panel);border:1px solid rgba(10,136,112,.2);border-radius:3px;padding:18px;margin-bottom:16px;position:relative;}
.scard::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(to right,var(--teal),var(--lime));}
.scard h3{font-family:'Rajdhani',sans-serif;font-size:.96rem;font-weight:700;color:var(--teal2);margin-bottom:12px;padding-bottom:7px;border-bottom:1px solid rgba(10,136,112,.2);}
.kl{list-style:none;}
.kl li{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid rgba(10,136,112,.08);}
.kl li:last-child{border-bottom:none;}
.kk{font-size:.8rem;color:var(--muted);}
.kv{font-family:'Courier Prime',monospace;font-size:.82rem;color:var(--teal2);}
footer{background:var(--dark);border-top:2px solid rgba(10,136,112,.3);padding:20px 44px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.fb{font-family:'Rajdhani',sans-serif;font-size:.95rem;font-weight:700;color:var(--teal2);letter-spacing:.06em;}
.fm{font-family:'Courier Prime',monospace;font-size:.6rem;color:var(--muted);text-align:right;line-height:1.8;letter-spacing:.06em;}
@media(max-width:820px){.grid{grid-template-columns:1fr;}.types{grid-template-columns:1fr;}.hero-txt{padding:28px 20px 34px;}}