:root{--bg:#061008;--ink:#0a1510;--text:#edf5ec;--muted:#93a396;--line:rgba(190,255,190,.13);--green:#73f5a5;--lime:#d5ff68;--gold:#d7ae55;--max:1240px}*{box-sizing:border-box}body{margin:0;color:var(--text);background:radial-gradient(900px 500px at 80% 0%,rgba(87,165,88,.12),transparent 60%),linear-gradient(#061008,#08110b 55%,#050907);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.17;background-image:repeating-radial-gradient(ellipse at 66% 30%,transparent 0 24px,rgba(154,224,143,.08) 25px 26px,transparent 27px 48px)}a{color:inherit;text-decoration:none}.survey-nav{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:50;width:min(var(--max),calc(100% - 38px));min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 15px;border:1px solid var(--line);background:rgba(6,15,9,.88);backdrop-filter:blur(18px);box-shadow:0 18px 50px rgba(0,0,0,.3)}.brand{display:flex;align-items:center;gap:11px;letter-spacing:.25em;font-size:12px;font-weight:800}.core{color:var(--lime);width:30px;height:30px;border:1px solid rgba(213,255,104,.35);display:grid;place-items:center;transform:rotate(45deg)}nav{display:flex;gap:3px;flex-wrap:wrap}nav a{padding:9px 11px;color:#a9b5aa;font-size:11px;letter-spacing:.08em}nav a:hover,nav a.active{color:#fff;background:rgba(115,245,165,.08)}main{width:min(var(--max),calc(100% - 48px));margin:auto}.hero{min-height:100svh;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:50px;padding:130px 0 70px;position:relative}.contours{position:absolute;inset:10% 0 0;pointer-events:none;background:repeating-radial-gradient(ellipse at 82% 52%,transparent 0 34px,rgba(109,215,120,.12) 35px 36px,transparent 37px 72px);mask-image:linear-gradient(90deg,transparent 10%,#000 50%,#000 100%)}.hero-copy{position:relative;z-index:2}.eyebrow{font-size:10px;letter-spacing:.32em;color:#7a997e}.hero h1{font-size:clamp(4.5rem,9vw,8.4rem);line-height:.82;letter-spacing:-.065em;margin:18px 0 0}.subhead{font-family:Georgia,serif;color:var(--lime);font-size:clamp(1.4rem,2.6vw,2.2rem);margin:26px 0 0}.lede{max-width:610px;color:var(--muted);line-height:1.72;font-size:1.08rem}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.hero-actions a{border:1px solid var(--line);padding:13px 17px;background:rgba(255,255,255,.025);font-size:13px}.core-sample{justify-self:center;width:190px;height:520px;border:1px solid rgba(213,255,104,.4);border-radius:92px;background:#09120a;overflow:hidden;display:flex;flex-direction:column;position:relative;box-shadow:0 0 70px rgba(96,207,112,.08)}.core-sample .cap,.core-sample b{padding:18px;text-align:center;font-size:10px;letter-spacing:.2em;color:#b9c5b4}.core-sample i{flex:1;border-top:1px solid rgba(255,255,255,.08)}.core-sample i:nth-of-type(1){background:repeating-linear-gradient(8deg,#132418 0 10px,#1a2d1e 11px 17px)}.core-sample i:nth-of-type(2){background:repeating-linear-gradient(-9deg,#1c2f1e 0 8px,#243a23 9px 16px)}.core-sample i:nth-of-type(3){background:linear-gradient(90deg,#263e22,#557b35 48%,#283d22)}.core-sample i:nth-of-type(4){background:repeating-linear-gradient(12deg,#17251b 0 7px,#2c3f29 8px 15px)}.core-sample i:nth-of-type(5){background:linear-gradient(90deg,#6d5a24,#d1b65a,#6d5a24)}.field-note,.principles{margin:40px 0 90px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px;display:grid;grid-template-columns:.65fr 1.2fr 1.3fr;gap:28px;align-items:start}.field-note>span{color:var(--green);font-size:10px;letter-spacing:.24em}.field-note strong{font-size:1.4rem}.field-note p{color:var(--muted);line-height:1.65;margin:0}.instrument{min-height:650px;margin:0 0 90px;padding:26px;border:1px solid var(--line);display:grid;grid-template-columns:170px minmax(0,.85fr) minmax(420px,1.15fr);gap:30px;align-items:stretch;background:linear-gradient(145deg,rgba(16,31,18,.75),rgba(6,11,8,.95));opacity:.45;transform:translateY(24px);transition:.55s}.instrument.in,.field-note.in,.principles.in{opacity:1;transform:none}.meta{border-right:1px solid var(--line);display:flex;flex-direction:column;gap:9px;color:#8ba28d}.meta span{font-size:3rem;color:#304934;font-weight:700}.meta b{font-size:11px;letter-spacing:.2em;color:var(--green)}.meta em{font-style:normal;font-size:9px;letter-spacing:.18em}.copy{padding:20px 0}.copy h2{font-size:3.6rem;letter-spacing:-.05em;margin:0}.thesis{font-family:Georgia,serif;color:var(--lime);font-size:1.45rem}.copy>p:not(.thesis){color:var(--muted);line-height:1.68}.copy ul{padding-left:18px;color:#c7d2c5;line-height:1.8}.copy a{display:inline-block;margin-top:20px;color:var(--green);font-weight:700}.visual{min-height:480px;border:1px solid rgba(183,255,184,.16);background:#071009;position:relative;overflow:hidden}.fault-map{background:repeating-linear-gradient(0deg,transparent 0 31px,rgba(112,230,139,.05) 32px),repeating-linear-gradient(90deg,transparent 0 31px,rgba(112,230,139,.05) 32px),#061008}.fault-map:before{content:"";position:absolute;left:48%;top:-10%;width:3px;height:120%;background:linear-gradient(transparent,var(--lime),transparent);transform:rotate(18deg);box-shadow:0 0 20px rgba(213,255,104,.5)}.fault-map .left,.fault-map .right{position:absolute;top:18px;font-size:10px;letter-spacing:.2em;color:#7d9a82}.fault-map .left{left:18px}.fault-map .right{right:18px}.fault{position:absolute;width:50%;height:1px;background:#66ef9c;opacity:.5}.f1{left:4%;top:38%;transform:rotate(8deg)}.f2{right:5%;top:55%;transform:rotate(-10deg)}.f3{left:15%;top:72%;transform:rotate(4deg)}.tag{position:absolute;background:#0b1c0f;border:1px solid #4bbf72;color:#9cffbb;padding:8px 10px;font-size:11px}.t1{left:18%;top:26%}.t2{right:18%;top:48%}.t3{left:28%;bottom:18%}.sample-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding:28px}.sample-grid div{border:1px solid rgba(213,255,104,.22);background:linear-gradient(145deg,#0c1a10,#081009);display:flex;align-items:center;justify-content:space-between;padding:18px;font-size:1.5rem;color:#d7ead7}.sample-grid span{font-size:9px;letter-spacing:.18em;color:var(--lime)}.bore{display:grid;place-items:center}.meter{width:76%;height:300px;display:flex;align-items:end;gap:8px}.meter i{flex:1;height:var(--h);background:linear-gradient(#d5ff68,#4cc77d);box-shadow:0 0 24px rgba(115,245,165,.12)}.bore p{position:absolute;bottom:24px;left:28px}.bore b{font-size:2.3rem;display:block}.bore span{color:var(--muted);font-size:12px;letter-spacing:.18em}.principles{grid-template-columns:1fr}.principles>div{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.principles span{padding:18px;border:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.6}.principles b{display:block;color:#dff4df;margin-bottom:7px;font-size:10px;letter-spacing:.12em}footer{width:min(var(--max),calc(100% - 48px));margin:auto;padding:28px 0 42px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#78907d;font-size:11px;letter-spacing:.12em}@media(max-width:950px){nav a:not(.active):not(:last-child){display:none}.hero{grid-template-columns:1fr}.core-sample{height:360px}.instrument{grid-template-columns:1fr}.meta{border-right:0;border-bottom:1px solid var(--line);padding-bottom:20px}.visual{min-height:360px}.field-note{grid-template-columns:1fr}.principles>div{grid-template-columns:1fr 1fr}}@media(max-width:560px){main,footer{width:calc(100% - 28px)}.survey-nav{width:calc(100% - 20px)}.brand{letter-spacing:.14em}.hero h1{font-size:4rem}.instrument{padding:18px}.sample-grid{padding:16px}.principles>div{grid-template-columns:1fr}footer{gap:20px;flex-wrap:wrap}}