/* Instrument sheets (sheet-editorial.php), 2026-10-04: the sub-pages of an instrument as sheets of a drawing set.
   One shell, a cover for each kind (design, electronics, software, specs, gallery), the instrument colour in --sh. */
.sh{--night:#0e171c;--paper:#edf1ec;--paper-2:#e3e9e6;--ink:#132830;--muted:#4f6672;--muted-d:#9fb8c4;--line-d:rgba(205,230,240,.15);--line-p:rgba(19,40,48,.14);--serif:'Cormorant Garamond',Georgia,serif;--monof:'IBM Plex Mono',ui-monospace,monospace;--acc:var(--sh,#0885B2);--acc-ink:color-mix(in oklab,var(--acc) 70%,#0b1a20);--acc-light:color-mix(in oklab,var(--acc) 55%,#ffffff)}
.sh .line-link{color:inherit}
.sh h1,.sh h2,.sh h3{font-weight:400}
.sh em{font-family:var(--serif);font-style:italic}

/* ── Cover ─────────────────────────────────────── */
.sh-cover{position:relative;isolation:isolate;background:var(--night);color:#eef6fa;padding:0 4.6% 46px;overflow:hidden}
.sh-cover .header{padding-left:0;padding-right:0}
.sh-cover::before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none}
.sh-cover--design{background:#0c2034}
.sh-cover--design::before{background-image:linear-gradient(rgba(156,201,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(156,201,255,.07) 1px,transparent 1px),linear-gradient(rgba(156,201,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(156,201,255,.035) 1px,transparent 1px);background-size:120px 120px,120px 120px,24px 24px,24px 24px}
.sh-cover--electronics{background:#0a1814}
.sh-cover--electronics::before{opacity:.5;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cg fill='none' stroke='%23d8b265' stroke-opacity='.18' stroke-width='2'%3E%3Cpath d='M0 40h70l20 20h60l20-20h70M0 120h40l30 30h100M240 200h-80l-20-20H60M40 0v30l20 20v40M200 240v-40l-20-20v-60'/%3E%3C/g%3E%3Cg fill='%23d8b265' fill-opacity='.22'%3E%3Ccircle cx='70' cy='40' r='4'/%3E%3Ccircle cx='170' cy='150' r='4'/%3E%3Ccircle cx='60' cy='180' r='4'/%3E%3Ccircle cx='60' cy='90' r='4'/%3E%3Ccircle cx='180' cy='120' r='4'/%3E%3C/g%3E%3C/svg%3E")}
.sh-cover--software{background:#0a0f12}
.sh-cover--software::before{background:radial-gradient(60% 80% at 80% 30%,color-mix(in srgb,var(--acc) 18%,transparent),transparent)}
.sh-cover--specs{background:#101a1f}
.sh-cover--gallery{background:#080b0c}
.sh-folio{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-top:1px solid var(--line-d);border-bottom:1px solid var(--line-d);color:var(--muted-d);font-size:.66rem}
.sh-folio a{color:var(--acc-light)}
.sh-cover-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:5%;align-items:center;padding:54px 0 0}
.sh-kicker{display:inline-flex;align-items:center;gap:10px;color:var(--acc-light);font-size:.7rem}
.sh-kicker::before{content:'';width:22px;height:2px;background:var(--acc)}
.sh-cover h1{margin:18px 0 22px;font-size:clamp(2.7rem,5.2vw,5.6rem);line-height:.98;letter-spacing:-.055em}
.sh-h1-name{display:block;margin-bottom:14px;font:500 .8rem/1.4 var(--monof);letter-spacing:.14em;text-transform:uppercase;color:var(--muted-d)}
.sh-cover h1 em{font-size:1.1em;letter-spacing:-.03em;color:var(--acc-light)}
.sh-lead{margin:0;max-width:56ch;font-size:1.05rem;line-height:1.7;color:#b9ccd5}
.sh-links{display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px;margin-top:30px}
.sh-btn{display:inline-flex;align-items:center;gap:12px;padding:13px 20px;background:var(--acc);color:#0b151a;border:0;font:600 .82rem Manrope,Arial,sans-serif;cursor:pointer;transition:filter .2s,transform .2s}
.sh-btn:hover{filter:brightness(1.12);transform:translateY(-2px)}
.sh-text .sh-links{gap:12px;margin:26px 0 0}
.sh-text .sh-btn{color:#0b151a}
.sh-btn--ghost,.sh-text .sh-btn--ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line-p)}
.sh-row[id]{scroll-margin-top:150px}
.sh-figure{margin:0;position:relative;min-width:0}
/* drawing frame with registration marks (design, electronics) */
.sh-frame{position:relative;padding:22px;border:1px solid rgba(220,236,250,.32);background:rgba(255,255,255,.02)}
.sh-cover--design .sh-frame{background:rgba(220,236,250,.92)}
.sh-cover--electronics .sh-frame{background:#0f2a24;border-color:rgba(216,178,101,.35)}
.sh-frame img{display:block;width:100%;height:auto;max-height:440px;object-fit:contain}
.sh-cover--design .sh-frame img{mix-blend-mode:multiply}
.sh-reg{position:absolute;width:18px;height:18px}
.sh-reg::before,.sh-reg::after{content:'';position:absolute;background:var(--acc-light)}
.sh-reg::before{left:8px;top:0;width:2px;height:18px}.sh-reg::after{top:8px;left:0;height:2px;width:18px}
.sh-reg--tl{left:-9px;top:-9px}.sh-reg--tr{right:-9px;top:-9px}.sh-reg--bl{left:-9px;bottom:-9px}
/* cartouche */
.sh-cart{display:grid;grid-template-columns:1.4fr .7fr 1fr 1.2fr;margin:-1px 0 0 auto;width:min(100%,560px);border:1px solid rgba(220,236,250,.32);background:rgba(10,18,22,.85);font-size:.62rem}
.sh-cart div{padding:7px 10px;border-left:1px solid rgba(220,236,250,.18)}
.sh-cart div:first-child{border-left:0}
.sh-cart dt{color:var(--muted-d);font-size:.56rem}
.sh-cart dd{margin:3px 0 0;color:#fff;text-transform:none;letter-spacing:.02em;font-size:.72rem}
/* software window */
.sh-window{border:1px solid rgba(220,236,250,.22);background:#0d1418;box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
.sh-window-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid rgba(220,236,250,.12)}
.sh-window-bar i{width:11px;height:11px;border-radius:50%;background:#3a4a52}
.sh-window-bar i:first-child{background:var(--acc)}
.sh-window-bar span{margin-left:10px;font-size:.6rem;color:var(--muted-d)}
.sh-window img{display:block;width:100%;height:auto}
/* data sheet */
.sh-datasheet{background:#f6f8f6;color:var(--ink);padding:18px 20px 22px;box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
.sh-ds-head{display:flex;justify-content:space-between;padding-bottom:10px;margin-bottom:14px;border-bottom:2px solid var(--ink);font-size:.62rem}
.sh-datasheet img{display:block;width:100%;height:auto;max-height:300px;object-fit:contain;mix-blend-mode:multiply}
.sh-ds-lines{display:grid;gap:8px;margin-top:16px}
.sh-ds-lines i{display:block;height:6px;background:linear-gradient(90deg,var(--line-p) 0 38%,transparent 38% 42%,rgba(19,40,48,.22) 42% 100%)}
/* contact sheet */
.sh-contact{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:14px;background:#111;border-top:10px dashed #222;border-bottom:10px dashed #222}
.sh-contact span{position:relative;aspect-ratio:4/3;background:#1a1a1a;overflow:hidden}
.sh-contact img{width:100%;height:100%;object-fit:cover;filter:saturate(.9)}
.sh-contact b{position:absolute;left:6px;bottom:4px;color:#ffd166;font-size:.6rem}

/* ── Body ──────────────────────────────────────── */
.sh-body{background:var(--paper);color:var(--ink);padding:40px 4.6% 20px}
.sh-row{padding:64px 0;border-top:1px solid var(--line-p)}
.sh-row:first-child{border-top:0}
.sh-row--split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:6%;align-items:center}
.sh-row--flip > .sh-text{order:2}
.sh-text{max-width:64ch}
.sh-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.66rem;color:var(--muted)}
.sh-eyebrow::before{content:'';width:22px;height:2px;background:var(--acc)}
.sh-text h2{margin:14px 0 18px;font-size:clamp(2rem,3.3vw,3.2rem);line-height:1.04;letter-spacing:-.045em}
.sh-text p{margin:0 0 14px;font-size:1rem;line-height:1.75;color:var(--muted)}
.sh-note{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:baseline;margin:26px 0 0;padding:14px 18px;border-left:3px solid var(--acc);background:#fff}
.sh-note .mono{font-size:.62rem;color:var(--acc-ink)}
.sh-note p{margin:0;font-size:.92rem;line-height:1.6;color:var(--muted)}
.sh-plate{margin:0}
.sh-plate-img{position:relative;padding:18px;background:#fff;border:1px solid var(--line-p)}
.sh-plate-img::after{content:'';position:absolute;right:-1px;bottom:-1px;width:56px;height:18px;border-left:1px solid var(--line-p);border-top:1px solid var(--line-p);background:repeating-linear-gradient(90deg,transparent 0 6px,var(--line-p) 6px 7px)}
.sh-plate-img img{display:block;width:100%;height:auto;max-height:520px;object-fit:contain}
.sh-plate--wide .sh-plate-img img{max-height:620px}
.sh-plate figcaption{margin-top:10px;font-size:.64rem;color:var(--muted)}
.sh-legend{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.88rem;color:var(--muted)}
.sh-legend li:not(.mono)::before{content:'·';margin-right:8px;color:var(--acc-ink)}
.sh-legend .mono{width:100%;font-size:.6rem;color:var(--acc-ink)}
.sh-list{list-style:none;margin:30px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.sh-list li{display:grid;grid-template-columns:40px 1fr;padding:14px 0;border-top:1px solid var(--line-p);font-size:.98rem;line-height:1.5}
.sh-list .mono{color:var(--acc-ink);font-size:.66rem;padding-top:3px}
.sh-steps{list-style:none;counter-reset:st;margin:34px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.sh-steps li{counter-increment:st;position:relative;padding:44px 16px 18px;background:#fff;border:1px solid var(--line-p)}
.sh-steps li::before{content:counter(st,decimal-leading-zero);position:absolute;left:16px;top:14px;font:500 .7rem var(--monof);color:var(--acc-ink)}
.sh-steps b{display:block;font-size:1.05rem;margin-bottom:6px}
.sh-steps span{font-size:.9rem;line-height:1.55;color:var(--muted)}
.sh-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:30px}
.sh-cards article{padding:20px;background:#fff;border:1px solid var(--line-p);border-top:3px solid var(--acc)}
.sh-cards .mono{font-size:.62rem;color:var(--acc-ink)}
.sh-cards h3{margin:8px 0 8px;font-size:1.2rem;letter-spacing:-.02em}
.sh-cards p{margin:0;font-size:.9rem;line-height:1.6;color:var(--muted)}
/* block diagram */
.sh-chain{margin-top:34px;padding:28px;background:#0d1a1f;color:#e6f1f5;border:1px solid var(--line-p)}
.sh-chain ol{list-style:none;margin:0;padding:0;display:flex;align-items:stretch;gap:0}
.sh-chain li{position:relative;flex:1 1 0;display:grid;align-content:start;gap:4px;padding:16px 14px;margin-right:34px;border:1px solid rgba(220,236,250,.25);background:#11232a}
.sh-chain li:last-child{margin-right:0}
.sh-chain li::after{content:'';position:absolute;right:-35px;top:50%;width:34px;height:2px;background:rgba(220,236,250,.25)}
.sh-chain li:last-child::after{display:none}
.sh-chain li::before{content:'';position:absolute;right:-35px;top:calc(50% - 3px);width:8px;height:8px;border-radius:50%;background:var(--acc-light);box-shadow:0 0 10px var(--acc-light);opacity:0;animation:sh-pulse 3.2s linear infinite;animation-delay:calc(var(--k,0) * .55s)}
.sh-chain li:last-child::before{display:none}
.sh-chain li .mono{font-size:.6rem;color:var(--acc-light)}
.sh-chain li b{font-size:1rem;font-weight:600}
.sh-chain li small{font-size:.82rem;line-height:1.45;color:var(--muted-d)}
.sh-chain li.is-on{border-color:var(--acc-light);box-shadow:inset 0 0 0 1px var(--acc-light)}
@keyframes sh-pulse{0%{opacity:0;transform:translateX(-30px)}10%{opacity:1}35%{opacity:1;transform:translateX(26px)}40%,100%{opacity:0;transform:translateX(26px)}}
.sh-loop{display:flex;align-items:baseline;gap:14px;margin-top:18px;padding:12px 14px;border:1px dashed rgba(220,236,250,.3)}
.sh-loop .mono{font-size:.6rem;color:#ffd166}
.sh-loop small{color:var(--muted-d)}
/* facts */
.sh-facts{margin:30px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}
.sh-facts div{display:grid;grid-template-columns:170px 1fr;gap:14px;padding:13px 0;border-top:1px solid var(--line-p)}
.sh-facts dt{font-size:.88rem;color:var(--muted)}
.sh-facts dd{margin:0;font-size:.95rem;line-height:1.5;font-variant-numeric:tabular-nums}
/* terminal */
.sh-term{margin-top:30px;background:#0b1114;color:#cfe6dd;border:1px solid #1f2d33}
.sh-term-tabs{display:flex;flex-wrap:wrap;border-bottom:1px solid #1f2d33}
.sh-term-tabs button{padding:12px 18px;background:none;border:0;border-right:1px solid #1f2d33;color:#8fb0ba;font:500 .8rem Manrope,Arial,sans-serif;cursor:pointer}
.sh-term-tabs button[aria-selected=true]{color:#fff;background:#111b20;box-shadow:inset 0 -2px 0 var(--acc)}
.sh-term-pane{position:relative;padding:20px 22px}
.sh-term pre{margin:0;font:400 .88rem/1.85 var(--monof);white-space:pre-wrap;overflow-wrap:anywhere}
.sh-term code{display:block}
.sh-term code.is-cmd::before{content:'$ ';color:var(--acc-light)}
.sh-term code.is-comment{color:#6f8e98}
.sh-copybtn{position:absolute;right:14px;top:14px;padding:6px 10px;background:#16242a;border:1px solid #2a3c44;color:#cfe6dd;font-size:.62rem;cursor:pointer}
.sh-copybtn.is-done{color:#7cf0b0;border-color:#7cf0b0}
/* files */
.sh-files{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px 28px;margin-top:30px}
.sh-file-group > .mono{display:block;padding-bottom:8px;margin-bottom:8px;border-bottom:2px solid var(--ink);font-size:.64rem}
.sh-file{display:grid;gap:4px;padding:12px 14px;margin-bottom:8px;background:#fff;border:1px solid var(--line-p);color:var(--ink);text-decoration:none;transition:border-color .2s,transform .2s}
.sh-file:hover{border-color:var(--acc);transform:translateY(-2px)}
.sh-file b{font-size:.95rem;font-weight:600}
.sh-file .mono{display:flex;gap:10px;align-items:center;font-size:.6rem;color:var(--muted);text-transform:none;letter-spacing:.02em}
.sh-file .mono i{font-style:normal;padding:2px 6px;background:var(--acc);color:#0b151a;font-weight:600;letter-spacing:.08em}
.sh-fine{margin:14px 0 0;font-size:.82rem;color:var(--muted)}
/* specs */
.sh-specs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 48px}
.sh-spec-group h3{margin:0 0 10px;padding-bottom:8px;border-bottom:2px solid var(--ink);font-size:.66rem;color:var(--acc-ink)}
.sh-spec-group dl{margin:0}
.sh-spec-group div{display:grid;grid-template-columns:190px 1fr;gap:14px;padding:11px 0;border-bottom:1px solid var(--line-p)}
.sh-spec-group dt{font-size:.9rem;color:var(--muted)}
.sh-spec-group dd{margin:0;font-size:.95rem;line-height:1.5;font-variant-numeric:tabular-nums}
.sh-table-wrap{overflow-x:auto;margin-top:26px}
.sh-ovt{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.sh-ovt th,.sh-ovt td{padding:12px 14px;border-bottom:1px solid var(--line-p);text-align:right}
.sh-ovt thead th{font:500 .66rem var(--monof);letter-spacing:.1em;color:var(--muted);border-bottom:2px solid var(--ink)}
.sh-ovt tbody th{text-align:left;font-weight:500}
.sh-ovt tbody th small{color:var(--muted);font-weight:400;margin-left:6px}
.sh-ovt td{font-size:1.05rem}
/* plates */
.sh-row--plates{border-top:0;padding-top:30px}
/* gallery: chapters in justified rows; each plate sits on its own edge colour (--bg, from GD) */
.sh-row--gallery{padding-top:28px}
.sh-gal-toc{display:flex;flex-wrap:wrap;align-items:center;gap:6px 22px;margin:0 0 8px;padding:12px 0;background:var(--paper);border-bottom:1px solid var(--line-p);font-size:.7rem}
.sh-gal-toc a{color:var(--ink);text-decoration:none;display:inline-flex;gap:8px}
.sh-gal-toc a span{color:var(--acc-ink)}
.sh-gal-toc a:hover{color:var(--acc-ink)}
.sh-gal-count{margin-left:auto;color:var(--muted)}
.sh-chapter{padding:46px 0 10px;scroll-margin-top:170px}
.sh-chapter-head{display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:4px 18px;margin:0 0 22px}
.sh-chapter-head .mono{grid-row:span 2;font-size:.7rem;color:var(--acc-ink);padding-top:.5em}
.sh-chapter-head h2{margin:0;font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.1}
.sh-chapter-head p{margin:0;color:var(--muted);font-size:1rem}
.sh-gal{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:14px}
.sh-gal::after{content:"";flex:1.6 1 0}
.sh-gal li{flex:var(--ar) 1 calc(var(--ar) * 250px);min-width:0;display:grid;grid-template-rows:auto 1fr;max-width:min(100%,calc(var(--ar) * 420px))}
.sh-gal button{display:block;width:100%;padding:0;border:0;background:var(--bg);cursor:zoom-in;overflow:hidden;aspect-ratio:var(--ar);box-shadow:inset 0 0 0 1px rgba(10,20,30,.07)}
.sh-gal li.is-dark button{box-shadow:none}
.sh-gal img{display:block;width:100%;height:100%;object-fit:contain;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.sh-gal button:hover img{transform:scale(1.035)}
.sh-gal button:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
.sh-gal p{margin:0;padding:9px 2px 0;font-size:.86rem;line-height:1.45;color:var(--muted);display:flex;gap:10px}
.sh-gal p .mono{flex:none;font-size:.7rem;color:var(--acc-ink);padding-top:.15em}
.sh-viewer{width:min(1280px,96vw);max-width:none;max-height:96vh;padding:0;border:0;background:#0b1114;color:#e6f1f5;overflow:hidden}
.sh-viewer::backdrop{background:rgba(5,9,11,.9)}
.sh-viewer-stage{position:relative;display:flex;align-items:center;justify-content:center;background:var(--vbg,#fff);height:min(80vh,820px);padding:2.5vh 2.5vw;overflow:hidden;transition:background .35s}
.sh-viewer img{display:block;width:100%;height:100%;object-fit:contain}
.sh-viewer-bar{position:relative;z-index:1;background:#0b1114;display:flex;align-items:center;gap:20px;padding:14px 18px}
.sh-viewer-bar p{margin:0;flex:1;display:flex;gap:14px;align-items:baseline;font-size:.95rem}
.sh-viewer-bar .mono{font-size:.7rem;color:#9fb6c2;white-space:nowrap}
.sh-viewer-nav{display:flex;gap:6px}
.sh-viewer-nav button{background:none;border:1px solid #2a3a42;color:#e6f1f5;min-width:40px;height:36px;padding:0 12px;cursor:pointer;font-size:.9rem}
.sh-viewer-nav button:hover{border-color:var(--acc)}
.sh-viewer-nav [data-close]{font-size:.7rem}
/* The bench: the gallery as one scroll. Each plate fills the stage and the stage takes the plate's own edge colour,
   so the image has no frame at all; the next plate opens from the centre as a disc, like a quartz crystal; the bar
   at the bottom is a resonance sweep, one line per plate, the peak riding the scroll. */
.sh-imm{position:relative;margin:-28px 0 70px}
.sh-imm-stage{position:sticky;top:var(--imm-top,104px);height:calc(100vh - var(--imm-top,104px));overflow:hidden;color:var(--imm-ink,#0d1a20);transition:color .5s}
.sh-imm-stage.is-dark{--imm-ink:#eef5f8;--imm-dim:rgba(238,245,248,.66)}
.sh-imm-stage.is-light{--imm-ink:#0d1a20;--imm-dim:rgba(13,26,32,.66)}
.sh-imm-layer{position:absolute;inset:0;background:var(--bg);clip-path:circle(0% at var(--ox,50%) var(--oy,46%));transition:clip-path 1.05s cubic-bezier(.65,0,.2,1)}
.sh-imm-layer.is-in{clip-path:circle(150% at var(--ox,50%) var(--oy,46%))}
.sh-imm-layer img{position:absolute;left:5vw;right:5vw;top:3vh;bottom:200px;width:calc(100% - 10vw);height:calc(100% - 3vh - 200px);object-fit:scale-down;transform:scale(var(--z,1));transition:opacity .4s;cursor:zoom-in}
.sh-imm-ring{position:absolute;left:var(--ox,50%);top:var(--oy,46%);width:0;height:0;pointer-events:none}
.sh-imm-ring i{position:absolute;left:0;top:0;border:1px solid var(--imm-ink);border-radius:50%;opacity:0;transform:translate(-50%,-50%)}
.sh-imm-ring.go i{animation:sh-ring 1.4s cubic-bezier(.2,.6,.2,1) forwards}
.sh-imm-ring.go i:nth-child(2){animation-delay:.12s}.sh-imm-ring.go i:nth-child(3){animation-delay:.24s}
@keyframes sh-ring{0%{width:0;height:0;opacity:.5}100%{width:140vmax;height:140vmax;opacity:0}}
.sh-imm-hud{position:absolute;left:4.6%;right:4.6%;bottom:16px;display:grid;grid-template-columns:minmax(0,30ch) minmax(0,1fr);gap:10px 40px;align-items:end;pointer-events:none}
.sh-imm-cap{display:grid;gap:6px;padding-bottom:4px}
.sh-imm-cap .mono{font-size:.7rem;color:var(--imm-dim)}
.sh-imm-n{font:300 clamp(2.4rem,4.4vw,3.6rem)/.9 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.sh-imm-n small{font-size:.32em;letter-spacing:.06em;color:var(--imm-dim);margin-left:.3em}
.sh-imm-cap p{margin:0;font-size:.98rem;line-height:1.4;min-height:2.8em}
.sh-imm-spec{position:relative;height:150px;pointer-events:auto}
.sh-imm-bars{position:absolute;left:0;right:0;bottom:22px;height:124px;display:flex;align-items:flex-end;gap:3px}
.sh-imm-bars button{flex:1;min-width:0;height:100%;padding:0;border:0;background:none;cursor:pointer;display:flex;flex-direction:column;justify-content:flex-end;gap:5px}
.sh-imm-bars button img{display:block;width:100%;aspect-ratio:1;object-fit:cover;opacity:.55;filter:saturate(.6);transition:opacity .25s,filter .25s;box-shadow:0 0 0 1px color-mix(in srgb,var(--imm-ink) 18%,transparent)}
.sh-imm-bars button:hover img,.sh-imm-bars button[aria-current] img{opacity:1;filter:none}
.sh-imm-bars button[aria-current] img{box-shadow:0 0 0 1.5px var(--imm-ink)}
.sh-imm-bars button i{display:block;width:100%;flex:none;height:calc(4px + 62px * var(--h,0));background:var(--c);box-shadow:0 0 0 1px color-mix(in srgb,var(--imm-ink) 22%,transparent);transition:height .12s linear}
.sh-imm-bars button[aria-current] i{box-shadow:0 0 0 1.5px var(--imm-ink)}
.sh-imm-axis{position:absolute;left:0;right:0;bottom:0;height:18px;border-top:1px solid color-mix(in srgb,var(--imm-ink) 35%,transparent);display:flex}
.sh-imm-axis span{font:500 10.5px/18px 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--imm-dim);border-left:1px solid color-mix(in srgb,var(--imm-ink) 35%,transparent);padding-left:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sh-imm-axis span.is-on{color:var(--imm-ink)}
.sh-imm-hint{position:absolute;right:4.6%;top:18px;font:500 11px/1 'IBM Plex Mono',ui-monospace,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--imm-dim);display:flex;gap:16px}
.sh-imm-hint a{color:inherit;pointer-events:auto}
.has-bench .sh-gal-title,.has-bench .sh-gal-toc,.has-bench .sh-chapter{display:none}
.has-bench .sh-imm{margin-bottom:0}
.sh-gal-title{display:grid;gap:6px;margin:0 0 10px;font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.1}
.sh-gal-title .mono{font-size:.7rem;color:var(--acc-ink);font-weight:400}
@media (max-width:760px){
  .sh-imm-layer img{left:4vw;right:4vw;top:2vh;bottom:230px;width:92vw;height:calc(100% - 2vh - 230px)}
  .sh-imm-hud{grid-template-columns:1fr;gap:8px;bottom:10px}
  .sh-imm-spec{height:96px}.sh-imm-bars{height:74px;gap:2px}.sh-imm-bars button{gap:3px}.sh-imm-bars button i{height:calc(3px + 36px * var(--h,0))}
  .sh-imm-axis span{font-size:0;padding:0}
  .sh-imm-hint{display:none}
}
@media (prefers-reduced-motion:reduce){.sh-imm-layer{transition:none}.sh-imm-ring{display:none}}
/* pager */
.sh-pager{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;padding:40px 4.6% 60px;background:var(--paper);color:var(--ink);border-top:1px solid var(--line-p)}
.sh-pager a{color:inherit;text-decoration:none}
.sh-pager-prev,.sh-pager-next{display:grid;gap:4px;padding:16px 18px;border:1px solid var(--line-p);background:#fff;transition:border-color .2s}
.sh-pager-next{text-align:right}
.sh-pager-prev:hover,.sh-pager-next:hover{border-color:var(--acc)}
.sh-pager .mono{font-size:.62rem;color:var(--acc-ink)}
.sh-pager b{font-size:1.25rem;font-weight:500;letter-spacing:-.02em}
.sh-pager-set{display:flex;gap:6px}
.sh-pager-set a{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line-p);font-size:.66rem}
.sh-pager-set a[aria-current]{background:var(--acc);border-color:var(--acc);color:#0b151a}

/* ── Responsive ────────────────────────────────── */
@media (max-width:1100px){
  .sh-cover-grid,.sh-row--split{grid-template-columns:1fr}
  .sh-cover-grid{gap:40px}
  .sh-row--flip > .sh-text{order:0}
  .sh-specs,.sh-facts{grid-template-columns:1fr}
  .sh-steps{grid-template-columns:1fr 1fr}
  .sh-chain ol{flex-direction:column}
  .sh-chain li{margin:0 0 30px}
  .sh-chain li::after{right:auto;left:50%;top:auto;bottom:-31px;width:2px;height:30px}
  .sh-chain li::before{display:none}
}
@media (max-width:760px){
  .sh-cover{padding:0 6% 36px}
  .sh-folio span:last-child{display:none}
  .sh-cover h1{font-size:clamp(2.3rem,10vw,3.2rem)}
  .sh-cart{grid-template-columns:1fr 1fr;width:100%}
  .sh-cart div:nth-child(3){border-left:0}
  .sh-cart div:nth-child(n+3){border-top:1px solid rgba(220,236,250,.18)}
  .sh-body{padding:20px 6% 10px}
  .sh-row{padding:46px 0}
  .sh-list,.sh-steps{grid-template-columns:1fr}
  .sh-gal li{flex-basis:100%;max-width:100%}
  .sh-gal-count{display:none}
  .sh-chapter-head{grid-template-columns:1fr}.sh-chapter-head .mono{grid-row:auto;padding:0}
  .sh-viewer-bar{flex-wrap:wrap}
  .sh-facts div,.sh-spec-group div{grid-template-columns:1fr;gap:2px}
  .sh-pager{grid-template-columns:1fr 1fr;padding:30px 6% 40px}
  .sh-pager-set{grid-column:1/-1;order:3;justify-content:center}
}
@media (prefers-reduced-motion:reduce){.sh-chain li::before{animation:none;opacity:0}}
@media print{.sh-cover{padding:0}.sh-links,.sh-pager,.sh-copybtn,.sh-term-tabs,.sh-viewer,.sh-gal-toc,.sh-imm{display:none!important}.sh-gal li{break-inside:avoid}.sh-term-pane[hidden]{display:block!important}.sh-cart{display:none}}