@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@300;400;600;700&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,300&family=Courier+Prime:wght@400;700&display=swap');
:root{--crude:#0a0806;--deep:#120e08;--earth:#1c1408;--layer:#2a1e10;--rust:#5a2e0a;--amber:#c07020;--oil:#d4900a;--flame:#e8a820;--chrome:#d0c0a0;--text:#c8b898;--muted:#7a6848;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;}
body{font-family:'Source Serif 4',Georgia,serif;background:var(--crude);color:var(--text);min-height:100vh;background-image:repeating-linear-gradient(0deg,transparent,transparent 59px,rgba(192,112,32,.03) 59px,rgba(192,112,32,.03) 60px);}
#prog{position:fixed;top:0;left:0;height:4px;background:linear-gradient(to right,var(--rust),var(--oil),var(--flame));z-index:1000;width:0%;}
#bt{position:fixed;bottom:28px;right:28px;width:44px;height:44px;background:var(--layer);border:2px solid var(--amber);color:var(--flame);font-size:.95rem;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;border-radius:3px;}
#bt.on{opacity:1;pointer-events:auto;}#bt:hover{transform:translateY(-3px);}
.nav{background:var(--deep);border-bottom:4px solid var(--amber);padding:10px 28px;display:flex;align-items:center;justify-content:space-between;}
.nav .bc{font-family:'Courier Prime',monospace;font-size:.62rem;color:rgba(192,112,32,.65);letter-spacing:.12em;}
.nav .bc .s{color:rgba(192,112,32,.22);margin:0 8px;}
.nav .lab{font-family:'Oswald',sans-serif;font-size:.85rem;font-weight:600;color:var(--flame);letter-spacing:.12em;}
.hero{position:relative;min-height:560px;display:flex;align-items:flex-end;overflow:hidden;}
.geo-bg{position:absolute;inset:0;background:linear-gradient(170deg,#050402 0%,#0c0a06 25%,#14100a 55%,#100c08 100%);}
.strata{position:absolute;inset:0;pointer-events:none;}
.derrick-svg{position:absolute;bottom:65px;left:50%;transform:translateX(-50%);width:min(700px,88vw);filter:drop-shadow(0 14px 40px rgba(0,0,0,.98));}
.flare{position:absolute;top:20%;right:15%;width:40px;height:80px;background:radial-gradient(ellipse at 50% 80%,rgba(232,168,32,.5),rgba(200,100,20,.2) 40%,transparent 70%);border-radius:50% 50% 0 0;animation:flr 1.5s ease-in-out infinite;}
@keyframes flr{0%,100%{transform:scaleX(1) scaleY(1);}50%{transform:scaleX(1.2) scaleY(1.15);}}
.ground{position:absolute;bottom:0;left:0;right:0;height:90px;background:linear-gradient(to top,rgba(10,8,6,.98) 0%,rgba(10,8,6,.7) 60%,transparent 100%);}
.hero-txt{position:relative;z-index:2;width:100%;padding:40px 44px 52px;background:linear-gradient(to top,rgba(8,6,4,.98) 0%,rgba(8,6,4,.65) 55%,transparent 100%);}
.hero-eyebrow{font-family:'Courier Prime',monospace;font-size:.62rem;color:var(--flame);letter-spacing:.22em;margin-bottom:10px;}
.hero h1{font-family:'Oswald',sans-serif;font-size:clamp(3.5rem,8.5vw,7rem);font-weight:700;color:var(--chrome);line-height:.88;letter-spacing:.03em;}
.hero h1 em{display:block;font-size:.28em;font-weight:300;font-style:normal;color:var(--amber);letter-spacing:.2em;margin-bottom:6px;font-family:'Courier Prime',monospace;}
.hero-sub{margin-top:12px;font-size:1.04rem;color:rgba(208,192,160,.78);max-width:540px;line-height:1.78;font-weight:300;font-style:italic;}
.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:.12em;text-transform:uppercase;border-radius:2px;}
.ch-a{border-color:rgba(192,112,32,.5);color:var(--flame);}
.ch-r{border-color:rgba(90,46,10,.6);color:#d08060;}
.main{max-width:1100px;margin:0 auto;padding:0 24px 80px;}
.intro{background:var(--layer);border-left:6px solid var(--amber);padding:26px 42px;margin-bottom:36px;}
.intro p{font-size:1.05rem;color:var(--chrome);line-height:1.85;font-style:italic;}
.intro strong{color:var(--flame);font-style:normal;}
.grid{display:grid;grid-template-columns:1fr 320px;gap:32px;}
.sh{font-family:'Oswald',sans-serif;font-size:1.6rem;font-weight:700;color:var(--flame);margin:44px 0 14px;padding-bottom:8px;border-bottom:2px solid rgba(192,112,32,.25);letter-spacing:.04em;display:flex;align-items:center;gap:12px;}
.sh:first-child{margin-top:0;}
.sh-d{width:12px;height:1.1em;background:var(--amber);flex-shrink:0;border-radius:1px;}
.mc p{font-size:1.01rem;color:var(--text);line-height:1.88;margin-bottom:14px;}
.mc strong{color:var(--chrome);}
.fam-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:11px;margin:14px 0;}
.fam{background:var(--layer);border:1px solid rgba(192,112,32,.18);border-top:3px solid var(--amber);padding:13px;opacity:0;transform:translateY(12px);transition:opacity .5s,transform .5s;}
.fam.on{opacity:1;transform:translateY(0);}
.fam h4{font-family:'Oswald',sans-serif;font-size:.95rem;color:var(--flame);margin-bottom:4px;font-weight:600;}
.fam p{font-size:.8rem!important;color:var(--muted)!important;margin:0!important;line-height:1.46!important;}
.dt{width:100%;border-collapse:collapse;margin:16px 0;font-size:.87rem;}
.dt thead th{background:var(--rust);color:var(--chrome);padding:9px 13px;text-align:left;font-family:'Courier Prime',monospace;font-size:.64rem;letter-spacing:.1em;}
.dt td{padding:7px 13px;border-bottom:1px solid rgba(192,112,32,.1);color:var(--text);}
.dt tr:hover td{background:rgba(192,112,32,.05);}
.dt td:first-child{font-family:'Courier Prime',monospace;color:var(--amber);font-size:.78rem;}
.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(--amber),var(--flame) 60%,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:-20px;top:4px;font-size:.5rem;color:var(--amber);}
.tl-yr{font-family:'Courier Prime',monospace;font-size:.66rem;color:var(--flame);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(192,112,32,.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:'Courier Prime',monospace;font-size:.71rem;color:var(--amber);min-width:130px;flex-shrink:0;}
.vd{font-size:.92rem;color:var(--text);}
.scard{background:var(--layer);border:1px solid rgba(192,112,32,.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(--rust),var(--flame));}
.scard h3{font-family:'Oswald',sans-serif;font-size:.95rem;color:var(--flame);margin-bottom:12px;padding-bottom:7px;border-bottom:1px solid rgba(192,112,32,.2);}
.kl{list-style:none;}
.kl li{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid rgba(192,112,32,.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(--amber);}
footer{background:var(--deep);border-top:3px solid var(--rust);padding:20px 44px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.fb{font-family:'Oswald',sans-serif;font-size:.95rem;font-weight:600;color:var(--flame);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;}.fam-grid{grid-template-columns:1fr 1fr;}.hero-txt{padding:30px 22px 34px;}}