/* OT: the site's paper surfaces and ruled layouts, with an industrial drawing. */
.ot-page{--ot-muted:#5a686d;--ot-line:#c8cfce}
.ot-page .ot-paper{position:relative;isolation:isolate;background:#f1f2ef}
.ot-paper::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:url('paper-grain.svg') repeat;opacity:.16;mix-blend-mode:multiply}
.ot-page .ot-hero{padding-top:2.35rem;padding-bottom:0}
.ot-hero .crumb{margin-bottom:clamp(2.5rem,5vw,4rem)}
.ot-hero-layout{display:grid;grid-template-columns:1fr 1.08fr;gap:1.5rem;align-items:center;padding-bottom:3.5rem}
.ot-hero h1{font-size:clamp(2.65rem,4.35vw,4.1rem);max-width:16ch;margin-bottom:1.4rem}
.ot-hero .lede{max-width:31rem;font-size:1.04rem}
.ot-hero .acts{gap:1rem 1.5rem}
.ot-hero .more{font-size:.86rem}
.ot-plant{margin:0;min-width:0}
.ot-plant img{width:100%;height:auto}
.ot-plant figcaption{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--ot-line);padding-top:.7rem;margin:0 1rem;color:var(--ot-muted);font-size:.7rem}
.ot-jump{display:flex;gap:0;border-top:1px solid var(--ot-line);padding:1.1rem 0;flex-wrap:wrap}
.ot-jump a{font-size:.78rem;text-decoration:none;color:var(--slate);padding:.4rem 2rem .4rem 0;transition:color .2s}
.ot-jump a:hover{color:var(--signal)}
.ot-jump span{color:var(--signal);margin-right:.6rem;font-size:.7rem}
.ot-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2.5rem,7vw,7rem);align-items:start}
.ot-intro h2{max-width:18ch}
.ot-intro>p{margin-top:1.4rem;color:var(--slate);font-size:1rem;line-height:1.7}
.ot-constraints{margin:0}
.ot-constraints>div{display:grid;grid-template-columns:10rem 1fr;gap:1.2rem;padding:1.35rem 0;border-top:1px solid var(--rule-soft)}
.ot-constraints>div:first-child{padding-top:0;border:0}
.ot-constraints dt{font-size:.94rem;font-weight:650}
.ot-constraints dd{font-size:.94rem;color:var(--slate);margin:0;line-height:1.7}
.ot-sticky{position:sticky;top:112px}
.ot-phase{scroll-margin-top:112px;padding:0 0 2.75rem;margin-bottom:2.75rem;border-bottom:1px solid var(--ot-line)}
.ot-phase:last-child{padding-bottom:0;margin-bottom:0;border:0}
.ot-phase .lbl{color:var(--ot-muted);margin-bottom:.8rem}
.ot-phase h3{font-size:1.6rem;letter-spacing:-.025em;margin-bottom:1rem}
.ot-phase p{font-size:1rem;color:var(--slate);line-height:1.75}
.ot-phase ul{margin:1.1rem 0 1.4rem;padding-left:1.1rem;color:var(--slate);font-size:.92rem}
.ot-phase li{padding:.2rem 0}
.ot-phase .ot-deliverable{border-left:2px solid var(--signal);padding-left:1rem;font-size:.9rem}
.ot-deliverable strong{display:block;color:var(--ink);font-size:.76rem;margin-bottom:.25rem}
/* A single plan detail, with labels kept as text so they remain legible on mobile. */
.ot-page .ot-architecture{background:var(--machine);color:#F4F6F7;border:0;overflow:hidden;padding-bottom:clamp(3rem,5vw,5rem)}
.ot-architecture-head{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}
.ot-architecture-head h2{max-width:19ch}
.ot-architecture-head p{color:#b9c7d0;font-size:1rem;max-width:32rem;padding-top:.3rem}
.ot-plan{position:relative;margin:3.5rem 0 0;padding-top:2rem}
.ot-plan img{display:block;width:100%;height:auto}
.ot-plan-label{position:absolute;font-size:.75rem;line-height:1.5;color:#c5d0d7}
.ot-plan-remote{left:0;top:0;color:#fc9a18}
.ot-plan-dmz{left:36.9%;top:0}
.ot-plan-zone{left:64.6%;top:0}
.ot-page .ot-close{background:var(--paper);text-align:center;padding-block:clamp(4.5rem,9vw,8rem)}
.ot-close h2,.ot-close p{margin-inline:auto}
.ot-close h2{max-width:23ch}
.ot-close .lede{margin-top:1.4rem;max-width:37rem;font-size:1rem}
.ot-close .acts{justify-content:center}
.ot-related{display:flex;justify-content:center;gap:1rem 2rem;flex-wrap:wrap;margin-top:2.5rem}
.ot-related a{font-size:.83rem;color:var(--slate);text-underline-offset:5px}
.ot-hero-copy{animation:ot-enter .65s ease-out both}
.ot-plant{animation:ot-enter .85s .12s ease-out both}
@keyframes ot-enter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:no-preference){.ot-phase.ot-arrived{animation:ot-enter .6s ease-out both}}
[data-theme="dark"] .ot-page .ot-paper{background:#141d23;--ot-muted:#b3c0c4;--ot-line:#435059}
[data-theme="dark"] .ot-paper::before{mix-blend-mode:screen;opacity:.06}
[data-theme="dark"] .ot-plant img{background:#f1f2ef}
@media(max-width:1000px){.ot-hero-layout{grid-template-columns:1.1fr 1fr}.ot-constraints>div{grid-template-columns:1fr;gap:.4rem}}
@media(max-width:820px){.ot-hero-layout{grid-template-columns:1fr;gap:2rem}.ot-hero h1{max-width:22ch}.ot-hero .lede{max-width:36rem}.ot-plant{max-width:35rem;width:100%;margin:auto}.ot-layout{grid-template-columns:1fr;gap:2.5rem}.ot-sticky{position:static}.ot-intro h2{max-width:25ch}.ot-constraints>div{grid-template-columns:10rem 1fr}.ot-jump{display:grid;grid-template-columns:1fr 1fr}.ot-jump a{padding-right:.5rem}}
@media(max-width:560px){.ot-hero .crumb{margin-bottom:2.25rem}.ot-hero h1{font-size:2.7rem;max-width:17ch}.ot-hero-layout{padding-bottom:2rem}.ot-hero .acts{align-items:flex-start;flex-direction:column}.ot-plant figcaption{margin-inline:0;font-size:.65rem}.ot-constraints>div{grid-template-columns:1fr;gap:.4rem}.ot-jump a{font-size:.73rem}.ot-jump span{margin-right:.3rem}.ot-related{flex-direction:column;gap:1rem}}
@media(prefers-reduced-motion:reduce){.ot-hero-copy,.ot-plant,.ot-phase.ot-arrived{animation:none}.ot-jump a{transition:none}}

/* Keep the opening composition together on a phone. */
@media(max-width:560px){
 .ot-page .ot-hero{padding-top:1.3rem}
 .ot-hero .crumb{margin-bottom:1.2rem}
 .ot-hero h1{font-size:2.4rem;margin-bottom:1rem}
 .ot-hero .acts{margin-top:1.25rem}
 .ot-hero-layout{gap:1rem;padding-bottom:1.25rem}
 .ot-plant{max-width:15rem}
 .ot-plant figcaption{font-size:.6rem;gap:.7rem;line-height:1.5}
 .ot-jump{padding-block:.5rem}
 .ot-jump a{min-height:44px;display:flex;align-items:center}
}

@media(max-width:820px){
 .ot-architecture-head{grid-template-columns:1fr;gap:1.25rem}
 .ot-architecture-head p{padding-top:0;max-width:36rem}
}
@media(max-width:560px){
 .ot-plan{margin-top:2.25rem;padding-top:1.75rem}
 .ot-plan-label{font-size:.65rem}
 .ot-architecture-head h2{max-width:17ch}
}