@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@300;400;600;700&family=Lora:ital,wght@0,400;0,600;1,400&family=JetBrains+Mono:wght@400;500&display=swap');
:root{--void:#080a04;--dark:#100e04;--panel:#181408;--ore:#2a2208;--gold:#c89020;--amber:#e8a820;--orange:#e07020;--cream:#f4eed8;--text:#c0b080;--muted:#706040;--green:#48a820;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;}
body{font-family:'Lora',Georgia,serif;background:var(--void);color:var(--text);min-height:100vh;}
#prog{position:fixed;top:0;left:0;height:3px;background:linear-gradient(to right,var(--ore),var(--gold),var(--amber));z-index:1000;width:0%;}
#bt{position:fixed;bottom:28px;right:28px;width:44px;height:44px;background:var(--panel);border:1px solid var(--gold);color:var(--amber);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(--gold);padding:10px 28px;display:flex;align-items:center;justify-content:space-between;}
.nav .bc{font-family:'JetBrains Mono',monospace;font-size:.6rem;color:rgba(200,144,32,.6);letter-spacing:.12em;}
.nav .bc .s{color:rgba(200,144,32,.2);margin:0 8px;}
.nav .dept{font-family:'Oswald',sans-serif;font-size:.78rem;font-weight:600;color:var(--amber);letter-spacing:.15em;}
.hero{position:relative;min-height:520px;display:flex;align-items:flex-end;overflow:hidden;}
.chem-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 40%,rgba(200,144,32,.1) 0%,transparent 55%),linear-gradient(165deg,#040302 0%,#080602 30%,#100e04 60%,#060402 100%);}
.mol-grid{position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent,transparent 39px,rgba(200,144,32,.04) 39px,rgba(200,144,32,.04) 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,rgba(200,144,32,.03) 39px,rgba(200,144,32,.03) 40px);}
.mol-svg{position:absolute;right:5%;top:8%;width:min(380px,44vw);}
.ground{position:absolute;bottom:0;left:0;right:0;height:85px;background:linear-gradient(to top,rgba(8,10,4,.98) 0%,rgba(8,10,4,.7) 60%,transparent);}
.hero-txt{position:relative;z-index:2;width:100%;padding:40px 44px 52px;background:linear-gradient(to top,rgba(6,8,2,.98) 0%,rgba(6,8,2,.65) 55%,transparent);}
.hero-eyebrow{font-family:'JetBrains Mono',monospace;font-size:.62rem;color:var(--amber);letter-spacing:.22em;margin-bottom:10px;}
.hero h1{font-family:'Oswald',sans-serif;font-size:clamp(3.5rem,8vw,6.5rem);font-weight:700;color:var(--cream);line-height:.88;letter-spacing:.03em;}
.hero h1 em{display:block;font-size:.27em;font-style:normal;color:var(--gold);letter-spacing:.2em;margin-bottom:6px;font-family:'JetBrains Mono',monospace;}
.hero-sub{margin-top:12px;font-size:1.04rem;color:rgba(244,238,216,.75);max-width:520px;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:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.1em;border-radius:2px;}
.ch-g{border-color:rgba(200,144,32,.55);color:var(--amber);}
.ch-gr{border-color:rgba(72,168,32,.4);color:var(--green);}
.main{max-width:1100px;margin:0 auto;padding:0 24px 80px;}
.intro{background:var(--panel);border-left:5px solid var(--gold);padding:24px 40px;margin-bottom:36px;}
.intro p{font-size:1.04rem;color:var(--cream);line-height:1.85;}
.intro strong{color:var(--amber);}
.grid{display:grid;grid-template-columns:1fr 310px;gap:28px;}
.sh{font-family:'Oswald',sans-serif;font-size:1.55rem;font-weight:700;color:var(--amber);margin:36px 0 12px;padding-bottom:7px;border-bottom:2px solid rgba(200,144,32,.2);letter-spacing:.04em;}
.sh:first-child{margin-top:0;}
.mc p{font-size:1rem;color:var(--text);line-height:1.88;margin-bottom:13px;}
.mc strong{color:var(--cream);}
.effects{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin:12px 0;}
.ef{background:var(--panel);border:1px solid rgba(200,144,32,.18);border-top:3px solid var(--gold);padding:12px;opacity:0;transform:translateY(10px);transition:opacity .5s,transform .5s;}
.ef.on{opacity:1;transform:translateY(0);}
.ef h4{font-family:'Oswald',sans-serif;font-size:.93rem;font-weight:600;color:var(--amber);margin-bottom:3px;letter-spacing:.04em;}
.ef p{font-size:.81rem!important;color:var(--muted)!important;margin:0!important;line-height:1.48!important;}
.dt{width:100%;border-collapse:collapse;margin:14px 0;font-size:.86rem;}
.dt thead th{background:var(--ore);color:var(--amber);padding:8px 12px;text-align:left;font-family:'JetBrains Mono',monospace;font-size:.62rem;letter-spacing:.08em;border-bottom:2px solid var(--gold);}
.dt td{padding:7px 12px;border-bottom:1px solid rgba(200,144,32,.1);color:var(--text);}
.dt tr:hover td{background:rgba(200,144,32,.04);}
.dt td:first-child{font-family:'JetBrains Mono',monospace;color:var(--amber);font-size:.77rem;}
.tl{position:relative;padding-left:24px;margin:12px 0;}
.tl::before{content:'';position:absolute;left:7px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--gold),var(--amber),transparent);}
.tl-item{position:relative;margin-bottom:15px;opacity:0;transform:translateX(-8px);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:.5rem;color:var(--gold);}
.tl-yr{font-family:'JetBrains Mono',monospace;font-size:.64rem;color:var(--amber);letter-spacing:.12em;margin-bottom:1px;}
.tl-item p{font-size:.96rem!important;margin:0!important;line-height:1.58!important;}
.vocab{list-style:none;}
.vocab li{display:flex;gap:12px;padding:7px 0;border-bottom:1px solid rgba(200,144,32,.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:'JetBrains Mono',monospace;font-size:.69rem;color:var(--gold);min-width:140px;flex-shrink:0;}
.vd{font-size:.91rem;color:var(--text);}
.scard{background:var(--panel);border:1px solid rgba(200,144,32,.18);border-radius:3px;padding:16px;margin-bottom:14px;position:relative;}
.scard::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(to right,var(--ore),var(--amber));}
.scard h3{font-family:'Oswald',sans-serif;font-size:.93rem;font-weight:600;color:var(--amber);margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid rgba(200,144,32,.15);}
.kl{list-style:none;}
.kl li{display:flex;justify-content:space-between;align-items:center;padding:5px 0;border-bottom:1px solid rgba(200,144,32,.08);}
.kl li:last-child{border-bottom:none;}
.kk{font-size:.79rem;color:var(--muted);}
.kv{font-family:'JetBrains Mono',monospace;font-size:.81rem;color:var(--gold);}
footer{background:var(--dark);border-top:2px solid rgba(200,144,32,.25);padding:18px 44px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.fb{font-family:'Lora',serif;font-style:italic;font-size:.9rem;color:var(--amber);}
.fm{font-family:'JetBrains Mono',monospace;font-size:.59rem;color:var(--muted);text-align:right;line-height:1.8;}
@media(max-width:820px){.grid{grid-template-columns:1fr;}.effects{grid-template-columns:1fr;}.mol-svg{display:none;}.hero-txt{padding:28px 20px 34px;}}