.guide-body{background:#111b1f}.guide-header{height:74px;padding:0 var(--pad);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;border-bottom:1px solid var(--line);text-transform:uppercase;font:400 .6rem/1 var(--mono);letter-spacing:.1em}.guide-header>a:last-child{justify-self:end;text-decoration:none;color:var(--cyan);min-height:44px;display:flex;align-items:center}.guide-main{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:110px 1fr;border-left:1px solid var(--line);border-right:1px solid var(--line)}.guide-rail{border-right:1px solid var(--line);display:flex;align-items:center;flex-direction:column;padding:3rem 0;color:var(--ice);font:400 .55rem/1 var(--mono);letter-spacing:.15em}.guide-rail span{writing-mode:vertical-rl}.guide-rail i{height:180px;width:1px;background:var(--cyan);margin:2rem 0}.guide-rail b{writing-mode:vertical-rl;color:var(--cyan)}.guide-main article{min-width:0}.guide-hero{min-height:650px;padding:clamp(6rem,10vw,10rem) clamp(1.5rem,8vw,8rem);position:relative;overflow:hidden;background:linear-gradient(135deg,#18262b,#314248)}.guide-hero:after{content:"";position:absolute;width:36vw;height:75%;right:-5%;bottom:-18%;background:#6d7275;clip-path:polygon(15% 0,100% 10%,86% 100%,0 100%);box-shadow:inset 0 0 0 1px rgba(255,255,255,.15)}.guide-hero .eyebrow{color:var(--cyan)}.guide-hero h1{position:relative;z-index:2;margin:2rem 0;font:900 clamp(5rem,12vw,11rem)/.75 var(--archivo);letter-spacing:-.09em}.guide-hero h1 span{color:transparent;-webkit-text-stroke:1px var(--ice)}.guide-deck{position:relative;z-index:2;max-width:590px;font-size:clamp(1.05rem,2vw,1.35rem);font-weight:600}.guide-main article>section{display:grid;grid-template-columns:110px minmax(0,800px);gap:clamp(1.5rem,5vw,5rem);padding:clamp(4rem,7vw,7rem) clamp(1.5rem,8vw,8rem);border-top:1px solid var(--line)}.guide-main article>section:nth-child(odd){background:#172428}.guide-num{font:700 .7rem/1 var(--mono);color:var(--cyan);padding-top:.8rem}.guide-main h2{font:800 clamp(2.2rem,4vw,4rem)/1 var(--archivo);letter-spacing:-.055em;text-transform:uppercase;margin:0 0 2rem}.guide-main section p{color:#c0cdcf;margin:0 0 1.2rem;max-width:760px}.guide-main code{font-family:var(--mono);font-size:.82em;color:var(--cyan);background:#091114;padding:.12em .35em}.token-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:0 0 2rem}.token-grid span{background:#111b1f;min-height:130px;padding:4.5rem .8rem .8rem;position:relative;text-transform:uppercase;font:400 .55rem/1.5 var(--mono)}.token-grid span:before{content:"";position:absolute;left:.8rem;top:.8rem;right:.8rem;height:2.8rem;background:var(--swatch)}
@media(max-width:700px){.guide-header{height:66px;grid-template-columns:1fr auto}.guide-header>span{display:none}.guide-header>a:last-child{font-size:.52rem}.guide-main{display:block;border:0}.guide-rail{display:none}.guide-hero{min-height:580px;padding:7rem var(--pad) 4rem}.guide-hero:after{width:60vw;height:52%}.guide-hero h1{font-size:22vw}.guide-main article>section{grid-template-columns:1fr;padding:4rem var(--pad);gap:1.5rem}.token-grid{grid-template-columns:1fr 1fr}.site-footer{margin-top:0}}
@media(prefers-reduced-motion:reduce){.grain{display:none}}

/* Pass 1 visual refinements */
.guide-hero{background:radial-gradient(circle at 82% 30%,rgba(159,180,189,.13),transparent 23%),linear-gradient(135deg,#18262b,#314248)}
.guide-hero:after{background:repeating-linear-gradient(90deg,rgba(255,255,255,.025) 0 1px,transparent 1px 52px),linear-gradient(115deg,#777e80,#555e61);box-shadow:inset 0 0 0 1px rgba(255,255,255,.15),-20px 20px 40px rgba(0,0,0,.24)}
.guide-hero:before{content:"";position:absolute;z-index:1;width:7vw;min-width:58px;height:43%;right:9%;bottom:0;background:linear-gradient(90deg,#071014,#104148 50%,#071014);border:4px solid #6d797c;box-shadow:0 0 30px rgba(0,229,238,.7),inset 0 0 20px var(--cyan)}
.guide-main article>section{background-image:linear-gradient(90deg,transparent calc(100% - 1px),rgba(159,180,189,.04) 1px),linear-gradient(transparent calc(100% - 1px),rgba(159,180,189,.035) 1px);background-size:96px 96px}
.guide-main article>section:nth-child(odd){background-color:#172428}

/* Pass 2 — turn documentation into an arctic field manual */
.guide-body{background:#061014}.guide-header{background:rgba(6,16,20,.94);position:sticky;top:0;z-index:90;backdrop-filter:blur(12px)}
.guide-main{grid-template-columns:84px 1fr;background:#091519}.guide-rail{position:sticky;top:74px;height:calc(100vh - 74px);padding:3rem 0;background:#071216}
.guide-hero{min-height:760px;padding:clamp(6rem,9vw,9rem) clamp(2rem,8vw,8rem);background:radial-gradient(circle at 72% 30%,rgba(159,180,189,.18),transparent 23%),linear-gradient(126deg,#13262c,#24383e 61%,#101d21)}
.guide-hero:after{width:38vw;height:67%;right:-2%;bottom:-8%;clip-path:polygon(12% 0,100% 11%,92% 100%,0 100%);background:repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 48px),linear-gradient(115deg,#747d7f,#4b5659)}
.guide-hero:before{right:8%;width:6.5vw;height:38%;border-width:5px;box-shadow:0 0 22px rgba(0,229,238,.52),inset 0 0 18px var(--cyan)}
.guide-hero h1{max-width:900px;font-size:clamp(5.2rem,11vw,11rem);line-height:.72;text-shadow:0 16px 35px rgba(0,0,0,.18)}.guide-hero h1 span{-webkit-text-stroke-color:#9fb4bd}
.guide-deck{max-width:630px;line-height:1.45}
.guide-instrument{position:absolute;z-index:3;left:clamp(2rem,8vw,8rem);right:clamp(2rem,8vw,8rem);bottom:2rem;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:1rem;text-transform:uppercase;font:400 .52rem/1 var(--mono);letter-spacing:.09em;color:var(--ice)}.guide-instrument span:last-of-type{text-align:right}.guide-instrument b{color:var(--cyan);font-size:.8rem}.guide-instrument i{height:1px;background:linear-gradient(90deg,var(--ice),var(--cyan));position:relative}.guide-instrument i:after{content:"";position:absolute;left:72%;top:-4px;width:7px;height:7px;background:var(--cyan);transform:rotate(45deg);box-shadow:0 0 10px var(--cyan)}.guide-instrument small{grid-row:2;font:inherit}.guide-instrument small:last-child{grid-column:3;text-align:right;color:var(--cyan)}
.guide-main article>section{grid-template-columns:80px minmax(0,790px);justify-content:center;padding:clamp(5rem,8vw,8rem) clamp(1.5rem,7vw,7rem);background-color:#0b171b;background-image:linear-gradient(90deg,transparent calc(100% - 1px),rgba(159,180,189,.045) 1px),linear-gradient(transparent calc(100% - 1px),rgba(159,180,189,.04) 1px);background-size:84px 84px}
.guide-main article>section:nth-child(odd){background-color:#111f23}.guide-main article>section:nth-child(even)>div{transform:translateX(4vw)}
.guide-num{color:#071216;background:var(--cyan);width:40px;height:40px;display:grid;place-items:center;padding:0;box-shadow:8px 8px 0 rgba(0,229,238,.12)}
.guide-main h2{font-size:clamp(2.6rem,4.6vw,4.8rem);max-width:740px;line-height:.9;margin-bottom:2.4rem}.guide-main section p{font-size:1.03rem;line-height:1.75;color:#c6d3d5}.guide-main code{border-bottom:1px solid rgba(0,229,238,.4)}
.rib-diagram{height:190px;margin:0 0 2.5rem;position:relative;overflow:hidden;background:radial-gradient(circle at 50% 54%,#0e4148,#071115 56%);border:1px solid var(--line);perspective:500px}.rib-diagram i{position:absolute;left:50%;top:48%;width:78%;height:78%;border:9px solid #697477;transform:translate(-50%,-50%) scale(var(--d));clip-path:polygon(0 0,100% 0,100% 100%,84% 100%,84% 22%,16% 22%,16% 100%,0 100%);opacity:var(--o)}.rib-diagram i:nth-child(1){--d:.2;--o:.35}.rib-diagram i:nth-child(2){--d:.4;--o:.5}.rib-diagram i:nth-child(3){--d:.67;--o:.7}.rib-diagram i:nth-child(4){--d:1;--o:1}.rib-diagram span{position:absolute;left:1rem;bottom:.7rem;color:var(--cyan);font:400 .5rem/1 var(--mono);letter-spacing:.1em}
.token-grid{gap:0;background:transparent;border-color:rgba(159,180,189,.45)}.token-grid span{background:#071216;border-right:1px solid var(--line);padding-top:5rem}.token-grid span:last-child{border-right:0}.token-grid span:before{height:3.5rem;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.guide-body .site-footer{margin-top:0}
@media(max-width:900px){.guide-main article>section:nth-child(even)>div{transform:none}}
@media(max-width:700px){.guide-header{top:0}.guide-hero{min-height:650px;padding:7rem var(--pad) 5rem}.guide-hero h1{font-size:21vw;line-height:.74}.guide-hero:after{width:58vw;height:43%;bottom:-3%}.guide-hero:before{right:8%;height:31%;width:14vw}.guide-deck{font-size:1rem;max-width:82%;margin-top:2rem}.guide-instrument{left:var(--pad);right:var(--pad);bottom:1.5rem;gap:.5rem;font-size:.44rem}.guide-main article>section{grid-template-columns:1fr;justify-content:stretch;padding:4.5rem var(--pad);gap:1.5rem}.guide-num{width:34px;height:34px}.guide-main h2{font-size:2.35rem;line-height:.94}.guide-main section p{font-size:.98rem;line-height:1.7}.rib-diagram{height:150px}.token-grid span{min-height:115px;padding-top:4.4rem}}

/* Pass 3 — field-manual finish */
.guide-header a{transition:color .25s,text-shadow .25s}.guide-header a:hover,.guide-header a:focus-visible{color:#fff;text-shadow:0 0 12px var(--cyan)}.guide-main article>section{position:relative;overflow:hidden}.guide-main article>section:after{content:attr(data-field);position:absolute;right:1.5rem;top:2rem;writing-mode:vertical-rl;color:rgba(159,180,189,.38);font:400 .47rem/1 var(--mono);letter-spacing:.2em}.guide-main article>section:before{content:"";position:absolute;right:0;bottom:0;width:18%;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}.guide-main h2{letter-spacing:-.064em;text-wrap:balance}.guide-main section p{text-wrap:pretty;max-inline-size:68ch}.guide-num{font-variant-numeric:tabular-nums}.token-grid span{transition:transform .45s cubic-bezier(.16,1,.3,1),background .3s}.token-grid span:hover{transform:translateY(-5px);background:#0b1b20}.rib-diagram:after{content:"−18.0°C / SEALED";position:absolute;right:1rem;top:.75rem;color:var(--ice);font:400 .45rem/1 var(--mono);letter-spacing:.1em}.guide-hero h1{letter-spacing:-.102em}.guide-instrument{font-variant-numeric:tabular-nums}
@media(max-width:700px){.guide-main article>section:after{right:.45rem;top:1.5rem;opacity:.5}.guide-main article>section:before{width:42%}.guide-hero h1{letter-spacing:-.09em}}