/* ============================================================
   KILL HOUSE — ported from ficspanel.com, SIFCON colours
   (original page: https://ficspanel.com/kill-house/)
   ============================================================ */
:root{
  --kx-base:#0B0D11; --kx-elev:#12161C; --kx-surf:#1A2029;
  --kx-line:#2A313B; --kx-line-2:#3B4450;
  --kx-accent:#E3A02A; --kx-accent-dim:rgba(227,160,42,.14);
  --kx-ink:#ECEDEA; --kx-muted:#9EA4AB; --kx-faint:#6B727B;
  --kx-font:'Inter',system-ui,sans-serif;
  --kx-sec:110px; --kx-hdr-h:74px; --kx-ease:cubic-bezier(.22,.61,.36,1);
}
.mat-cap{display:flex;justify-content:space-between;gap:1rem;padding:.85rem 1rem;border-top:1px solid var(--kx-line);background:var(--kx-elev)}
.meta{font-size:.66rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--kx-faint)}
@keyframes loc-pulse{0%{r:6;opacity:.7}100%{r:22;opacity:0}}
/* ═══════════════════════════════════════════════════════════════
   KILL HOUSE — shared by homepage section + /kill-house/ page
   ═══════════════════════════════════════════════════════════════ */

.kh-home{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.9fr);gap:clamp(2rem,4.5vw,4.5rem);align-items:start}
.kh-fig{border:1px solid var(--kx-line);background:var(--kx-base)}
.ks-scroll{overflow:hidden}
.ks{padding:clamp(.8rem,2vw,1.6rem) clamp(.8rem,2vw,1.6rem) .4rem}
.ks-svg{width:100%;height:auto;display:block;overflow:visible}

/* drawing */
.ks-struct rect{stroke:rgba(255,255,255,.14);stroke-width:1}
.ks-ann text{fill:var(--kx-faint);font-family:var(--kx-font);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase}
.ks-ann line{stroke:var(--kx-faint);stroke-width:1}
.ks-c{transition:opacity .35s var(--kx-ease);cursor:pointer}
.ks-c .part{stroke:rgba(255,255,255,.22);stroke-width:1;transition:stroke .3s var(--kx-ease)}
.ks-c .bolt{stroke:#8c979c;stroke-width:1.6}
.ks-c .joint{stroke:rgba(0,0,0,.55);stroke-width:1}
.ks-c .mk line{stroke:var(--kx-accent);stroke-width:1;opacity:.7}
.ks-c .mk circle{fill:var(--kx-base);stroke:var(--kx-accent);stroke-width:1.4;transition:fill .3s var(--kx-ease)}
.ks-c .mk text{fill:var(--kx-ink);font-family:var(--kx-font);font-size:12px;font-weight:600;letter-spacing:.04em;transition:fill .3s var(--kx-ease)}
.ks-fig circle,.ks-fig path{fill:#1d2429;stroke:rgba(255,255,255,.12)}
.ks-shot line{stroke:var(--kx-accent);stroke-width:1.4;stroke-dasharray:3 5;opacity:.85}
.ks-hit{fill:var(--kx-accent)}
.ks-hit-ring{fill:none;stroke:var(--kx-accent);stroke-width:1;opacity:0;animation:loc-pulse 2.8s ease-out infinite}

.ks.has-active .ks-c{opacity:.2}
.ks.has-active .ks-c.is-on{opacity:1}
.ks.has-active .ks-shot{opacity:.25}
.ks-c.is-on .part{stroke:var(--kx-accent);stroke-width:1.6}
.ks-c.is-on .mk circle{fill:var(--kx-accent)}
.ks-c.is-on .mk text{fill:#04120A}

/* system list next to the drawing */
.ks-list{list-style:none;border-top:1px solid var(--kx-line)}
.ks-list a{display:grid;grid-template-columns:2.4rem 1fr;gap:.15rem 1rem;padding:1.05rem 0;border-bottom:1px solid var(--kx-line);position:relative;transition:padding-left .4s var(--kx-ease)}
.ks-list a::before{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;background:var(--kx-accent);transition:width .5s var(--kx-ease)}
.ks-list a:hover,.ks-list a:focus-visible,.ks-list a.on{padding-left:.8rem}
.ks-list a.on::before{width:100%}
.ks-n{grid-row:span 2;font-size:.66rem;font-weight:600;letter-spacing:.12em;color:var(--kx-faint);padding-top:.3rem;transition:color .3s var(--kx-ease)}
.ks-list a.on .ks-n{color:var(--kx-accent)}
.ks-t{font-size:clamp(1rem,1.5vw,1.2rem);font-weight:700;text-transform:uppercase;letter-spacing:-.015em;line-height:1.15}
.ks-v{font-size:.86rem;font-weight:300;color:var(--kx-muted)}
.kh-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:2rem}

/* ── /kill-house/ page ──────────────────────────────────────── */
.kh-hero{padding-top:calc(var(--kx-hdr-h) + clamp(1.5rem,4vw,3rem));padding-bottom:var(--kx-sec);position:relative;z-index:2}
.crumbs{display:flex;gap:.6rem;font-size:.62rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--kx-faint);margin-bottom:clamp(2rem,4vw,3rem)}
.crumbs a{color:var(--kx-muted);transition:color .3s var(--kx-ease)}
.crumbs a:hover{color:var(--kx-accent)}
.kh-hero-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:clamp(1.5rem,5vw,5rem);align-items:end;padding-bottom:clamp(2.4rem,4vw,3.2rem);margin-bottom:clamp(2.4rem,4vw,3.6rem);border-bottom:1px solid var(--kx-line)}
.kh-hero h1{font-weight:700;text-transform:uppercase;letter-spacing:-.035em;font-size:clamp(2.8rem,7.4vw,6.4rem);line-height:.9;margin-top:1.3rem}
.kh-hero .lede{margin-bottom:2rem}

/* hazards */
.haz{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--kx-line);border:1px solid var(--kx-line)}
.haz div{background:var(--kx-elev);padding:clamp(1.5rem,2.6vw,2.2rem)}
.haz h3{font-size:clamp(1.15rem,1.8vw,1.45rem);font-weight:700;text-transform:uppercase;letter-spacing:-.02em;line-height:1.05;margin-bottom:.9rem}
.haz p{font-size:.9rem;font-weight:300;color:var(--kx-muted);line-height:1.7}
.haz .refs{display:block;margin-top:1.2rem;font-size:.62rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--kx-accent)}

/* specification blocks */
.scale-note{display:flex;align-items:center;gap:.8rem;font-size:.86rem;font-weight:300;color:var(--kx-muted);margin-top:-1.6rem;margin-bottom:clamp(2.4rem,4vw,3.4rem)}
.scale-note i{flex:none;width:34px;height:8px;border:1px solid var(--kx-line-2);border-top:0}
.sys{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(1.8rem,5vw,5rem);padding-block:clamp(2.6rem,5vw,4rem);border-top:1px solid var(--kx-line);scroll-margin-top:calc(var(--kx-hdr-h) - 8px)}
.sys:first-of-type{border-top:0;padding-top:0}
.sys-head{align-self:start;position:sticky;top:calc(var(--kx-hdr-h) + 1.5rem)}
.sys-no{font-size:.66rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--kx-accent)}
.sys-head h3{font-size:clamp(1.6rem,3vw,2.5rem);font-weight:700;text-transform:uppercase;letter-spacing:-.03em;line-height:.98;margin:.8rem 0 1rem}
.sys-size{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.08em;padding:.5rem .8rem;border:1px solid var(--kx-line-2);margin-bottom:1.2rem}
.sys-head p{color:var(--kx-muted);font-weight:300;max-width:42ch}
.sys-body > * + *{margin-top:1.8rem}
.sys-sub{font-size:.95rem;font-weight:700;text-transform:uppercase;letter-spacing:.02em;display:flex;justify-content:space-between;gap:1rem;align-items:baseline;padding-bottom:.8rem;border-bottom:1px solid var(--kx-line)}
.sys-sub span{font-size:.72rem;font-weight:500;letter-spacing:.06em;color:var(--kx-muted);text-transform:none}
.sys-body .sys-sub:not(:first-child){margin-top:3rem}

/* to-scale section strip — every strip shares one 260 mm scale */
.strip{position:relative}
.strip-ends{display:flex;justify-content:space-between;width:calc(var(--total) / 260 * 100%);min-width:9rem;font-size:.6rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--kx-faint);margin-bottom:.45rem}
.strip-ends b{color:var(--kx-ink);font-weight:600;letter-spacing:.06em}
.strip-bar{display:flex;height:64px;width:calc(var(--total) / 260 * 100%);border:1px solid var(--kx-line-2);background:var(--kx-base)}
.strip-bar i{flex:var(--mm) 1 0;min-width:4px;border-right:1px solid rgba(0,0,0,.5)}
.strip-bar i:last-child{border-right:0}
.strip-rule{position:relative;height:26px;margin-top:6px;border-top:1px solid var(--kx-line-2)}
.strip-rule span{position:absolute;top:0;transform:translateX(-50%);font-size:.58rem;font-weight:500;letter-spacing:.08em;color:var(--kx-faint);padding-top:8px}
.strip-rule span::before{content:"";position:absolute;top:-1px;left:50%;width:1px;height:6px;background:var(--kx-line-2)}
.strip-rule span:first-child{transform:none}
.strip-rule span:first-child::before{left:0}

/* material swatches */
.m-rubber{background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.18) 0 1px,transparent 1.5px) 0 0/6px 6px,radial-gradient(circle,rgba(0,0,0,.45) 0 .8px,transparent 1.2px) 3px 3px/6px 6px,#2c3338}
.m-wood{background:repeating-linear-gradient(90deg,#7a6448 0 3px,#67533a 3px 5px)}
.m-air{background:repeating-linear-gradient(45deg,rgba(154,165,170,.5) 0 1px,transparent 1px 7px),#14191d}
.m-steel{background:linear-gradient(90deg,#b3bdc1,#88949a)}
.m-ms{background:linear-gradient(90deg,#8e999e,#6c777d)}
.m-coat{background:var(--kx-accent)}
.m-acou{background:radial-gradient(circle,rgba(0,0,0,.4) 0 1.1px,transparent 1.5px) 0 0/8px 8px,radial-gradient(circle,rgba(255,255,255,.14) 0 .9px,transparent 1.3px) 4px 4px/8px 8px,#363c34}
.m-crumb{background:radial-gradient(circle,rgba(255,255,255,.2) 0 1px,transparent 1.4px) 0 0/5px 5px,radial-gradient(circle,rgba(0,0,0,.5) 0 .9px,transparent 1.3px) 2.5px 2.5px/5px 5px,#262c30}
.m-glass{background:repeating-linear-gradient(90deg,rgba(180,220,230,.45) 0 2px,rgba(120,170,185,.16) 2px 7px)}
.m-void{background:#101417}

/* layer table */
.lays{border-top:1px solid var(--kx-line)}
.lays div{display:grid;grid-template-columns:22px minmax(110px,.5fr) 1fr;gap:.4rem 1.1rem;align-items:start;padding:.9rem 0;border-bottom:1px solid var(--kx-line)}
.lays .sw{width:22px;height:22px;border:1px solid var(--kx-line-2);margin-top:.05rem}
.lays .sw-none{visibility:hidden}
.lays dt{font-size:.62rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--kx-faint);padding-top:.35rem}
.lays dd{font-weight:500;font-size:.95rem}
.lays dd small{display:block;font-size:.84rem;font-weight:300;color:var(--kx-muted);margin-top:.15rem}

.inst h4{font-size:.62rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--kx-ink);margin-bottom:.9rem}
.inst ul{list-style:none;display:grid;gap:.65rem}
.inst li{position:relative;padding-left:1.4rem;font-size:.93rem;font-weight:300;color:var(--kx-muted);line-height:1.65;max-width:62ch}
.inst li::before{content:"";position:absolute;left:0;top:.72em;width:.7rem;height:1px;background:var(--kx-accent)}
.inst li strong{color:var(--kx-ink);font-weight:500}
.perf{display:flex;gap:.9rem;align-items:flex-start;padding:1rem 1.1rem;border:1px solid var(--kx-line-2);background:rgba(227,160,42,.06);font-size:.9rem;font-weight:300;color:var(--kx-muted);line-height:1.65}
.perf b{flex:none;font-size:.6rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--kx-accent);padding-top:.25rem}

/* process */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--kx-line);border:1px solid var(--kx-line);counter-reset:step}
.steps li{background:var(--kx-surf);padding:clamp(1.5rem,2.6vw,2.2rem);counter-increment:step;position:relative}
.steps li::before{content:counter(step);display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--kx-accent);border-radius:50%;font-size:.8rem;font-weight:600;color:var(--kx-accent);margin-bottom:1.3rem}
.steps li::after{content:"";position:absolute;top:calc(clamp(1.5rem,2.6vw,2.2rem) + 17px);left:calc(clamp(1.5rem,2.6vw,2.2rem) + 44px);right:0;height:1px;background:var(--kx-line-2)}
.steps li:last-child::after{display:none}
.steps h3{font-size:1.1rem;font-weight:700;text-transform:uppercase;letter-spacing:-.01em;margin-bottom:.6rem}
.steps p{font-size:.9rem;font-weight:300;color:var(--kx-muted);line-height:1.7}
.steps-note{margin-top:1.6rem;font-size:.9rem;font-weight:300;color:var(--kx-muted);max-width:70ch}

@media (max-width:1100px){
  .kh-home,.kh-hero-head{grid-template-columns:1fr}
  .haz{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .steps li::after{display:none}
  .sys{grid-template-columns:1fr}
  .sys-head{position:static}
}
@media (max-width:720px){
  .ks-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .ks-svg{min-width:620px}
  .kh-fig .mat-cap{flex-direction:column;gap:.3rem}
  .kh-fig .mat-cap::after{content:"Swipe sideways to see the full section";font-size:.6rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--kx-accent)}
  .haz,.steps{grid-template-columns:1fr}
  .lays div{grid-template-columns:22px 1fr}
  .lays dd{grid-column:2}
  .strip-bar{height:52px}
}

/* ── SIFCON typography: Oswald headings, IBM Plex Mono labels ── */
.ks-t,.haz h3,.steps h3,.sys-head h3,.sys-sub,.kh-hero h1 .h1-main{font-family:var(--font-display);letter-spacing:.01em}
.ks-t{font-weight:600}
.sys-head h3,.haz h3,.steps h3{font-weight:600}
.ks-n,.ks-v,.crumbs,.sys-no,.sys-size,.haz .refs,.lays dt,.strip-ends,.strip-rule span,.inst h4,.perf b,.meta,.scale-note{font-family:var(--font-mono)}
.ks-c .mk text,.ks-ann text{font-family:'IBM Plex Mono',monospace}
.ks-list a.on .ks-t{color:var(--signal)}
.kh-hero{background:radial-gradient(circle at 85% 10%,rgba(227,160,42,.07),transparent 45%),linear-gradient(180deg,#0B0D11 0%,#10141A 100%);padding-bottom:90px}
.kh-hero h1{font-size:clamp(2.8rem,7vw,5.6rem);line-height:.95}
.kh-actions .btn,.kh-hero .hero-actions .btn{margin-top:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.kh-section-note{margin-top:16px}

/* keyword line inside H1, looks like the normal eyebrow */
h1.h1-kw{margin-top:0}
h1.h1-kw .eyebrow{display:flex;flex-wrap:wrap;font-weight:500;line-height:1.5;text-transform:uppercase}
h1.h1-kw .h1-main{display:block}

/* select field for the enquiry form */
.field select{width:100%;background:var(--ink);border:1px solid var(--line);color:var(--paper);padding:13px 14px;font-family:var(--font-body);font-size:.92rem;border-radius:0;appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--concrete) 50%),linear-gradient(135deg,var(--concrete) 50%,transparent 50%);
  background-position:calc(100% - 18px) 55%,calc(100% - 13px) 55%;background-size:5px 5px;background-repeat:no-repeat}
.field select:focus{outline:none;border-color:var(--signal)}
.form-note{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--concrete);margin-top:12px;text-align:center}
.nav-menu a[aria-current="page"]{color:var(--signal)}
.kh-hero .lede{font-size:1.02rem;color:var(--concrete);max-width:54ch;margin-bottom:28px}
.section.alt .haz div{background:var(--kx-surf)}
.scale-note{margin-top:0}
.kh-home .ks-list{margin-top:0}
.steps-note{color:var(--concrete)}
#killhouse .section-head{max-width:820px}

@media (max-width:1100px){.kh-home,.kh-hero-head{grid-template-columns:minmax(0,1fr)}}