/* Plumber 24h: site styles. Palette from the logo: ink navy #091728, signal orange #E24C12. */
:root{
  --ink:#091728; --ink-2:#0f2236; --ink-3:#18304a; --steel:#5d7186;
  --signal:#e24c12; --signal-deep:#b8390a; --signal-soft:#f6d9cb;
  --paper:#f3efe8; --paper-2:#e8e2d7; --line:#cfc6b8; --text:#14202c; --muted:#4c5a68;
  --on-dark:#f4efe6; --on-dark-2:#b9c4cf;
  --display:"Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --body:"Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
  --head-h:76px; --gutter:clamp(16px, 4.5vw, 64px); --max:1320px;
  --mk-accent:var(--signal); --mk-arrival-bg:var(--ink); --mk-toggle-ink:var(--ink);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:calc(var(--head-h) + 16px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font:400 1.0625rem/1.65 var(--body);overflow-x:clip}
img,svg,video,picture{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--signal-deep)}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:.95;letter-spacing:.005em;text-transform:uppercase;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(2.9rem, 7.4vw, 7rem)}
h2{font-size:clamp(2.2rem, 4.8vw, 4.4rem)}
h3{font-size:clamp(1.45rem, 2.2vw, 1.9rem);line-height:1.05}
p{margin:0 0 1em;text-wrap:pretty}
.skip{position:absolute;left:-999px;top:8px;z-index:200;background:var(--signal);color:#fff;padding:.6em 1em}
.skip:focus{left:8px}
.wrap{width:min(var(--max), 100% - 2*var(--gutter));margin-inline:auto}
.eyebrow{font:500 .78rem/1.3 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--signal-deep);display:flex;align-items:center;gap:.75em;margin:0 0 1.1rem}
.eyebrow::before{content:"";width:2.2rem;height:2px;background:currentColor}
.on-dark .eyebrow,.eyebrow--light{color:#ff8a5c}
.lede{font-size:clamp(1.1rem, 1.5vw, 1.3rem);line-height:1.55;color:var(--muted);max-width:60ch}
.on-dark{background:var(--ink);color:var(--on-dark)}
.on-dark .lede,.on-dark p{color:var(--on-dark-2)}
.on-dark a:hover{color:#ff8a5c}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.6em;font:700 .95rem/1 var(--body);letter-spacing:.02em;padding:1.05em 1.5em;border-radius:3px;border:2px solid currentColor;text-decoration:none;color:var(--ink);background:transparent;cursor:pointer;transition:background .25s,color .25s,translate .25s}
.btn:hover{translate:0 -2px;color:var(--ink)}
.btn--signal{background:#c9420e;border-color:#c9420e;color:#fff}
.btn--signal:hover{background:var(--signal-deep);border-color:var(--signal-deep);color:#fff}
.btn--ghost-light{color:var(--on-dark);border-color:rgba(244,239,230,.55)}
.btn--ghost-light:hover{background:var(--on-dark);color:var(--ink)}
.btn .arrow{width:1.1em;height:1.1em}

/* Header */
.site-head{position:sticky;top:0;z-index:60;background:rgba(9,23,40,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--on-dark);view-transition-name:site-head;border-bottom:1px solid rgba(255,255,255,.08)}
.site-head__bar{display:flex;align-items:center;gap:clamp(12px,2.4vw,40px);height:var(--head-h);width:min(1440px, 100% - 2*var(--gutter));margin-inline:auto}
.brand img{height:40px;width:auto}
.nav{margin-left:auto}
.nav__list{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav__item{position:relative}
.nav__trigger,.nav__link{display:flex;align-items:center;gap:.45em;height:var(--head-h);padding:0 1rem;background:none;border:0;color:var(--on-dark);font:600 .95rem/1 var(--body);text-decoration:none;cursor:pointer}
.nav__trigger:hover,.nav__link:hover,.nav__link[aria-current]{color:#ff8a5c}
.nav__caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;rotate:45deg;translate:0 -2px;transition:rotate .25s}
.nav__trigger[aria-expanded="true"] .nav__caret{rotate:225deg;translate:0 2px}
.mega{position:absolute;top:100%;left:50%;translate:-50% 0;width:min(820px, 92vw);padding-top:0;opacity:0;visibility:hidden;transition:opacity .2s, visibility 0s .2s;z-index:70}
.mega::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
.mega.is-open{opacity:1;visibility:visible;transition:opacity .2s}
.mega--small{width:min(460px, 92vw)}
.mega__inner{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);gap:0;background:var(--paper);color:var(--text);border-top:3px solid var(--signal);box-shadow:0 30px 60px -20px rgba(0,0,0,.5)}
.mega--small .mega__inner{grid-template-columns:1fr}
.mega__lead{background:var(--ink-2);color:var(--on-dark);padding:28px}
.mega__eyebrow{font:500 .72rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:#ff8a5c;margin-bottom:.9rem}
.mega__title{font:800 1.9rem/1 var(--display);text-transform:uppercase;margin-bottom:.6rem;color:var(--on-dark)}
.mega__text{font-size:.92rem;color:var(--on-dark-2)}
.mega__cta{display:inline-block;font-weight:700;color:#ff8a5c;text-decoration:underline;text-underline-offset:4px}
.mega__links{list-style:none;margin:0;padding:12px}
.mega__links a{display:flex;gap:14px;padding:12px 14px;text-decoration:none;border-radius:2px;transition:background .2s}
.mega__links a:hover,.mega__links a:focus-visible,.mega__links a[aria-current]{background:var(--paper-2);color:var(--text)}
.mega__num{font:500 .8rem/1.6 var(--mono);color:var(--signal-deep)}
.mega__links strong{display:block;font-weight:700}
.mega__links small{display:block;color:var(--muted);font-size:.85rem;line-height:1.4}
.site-head__tools{display:flex;align-items:center;gap:10px}
.site-head__cta{padding:.85em 1.15em}
.lang{position:relative}
.lang__btn{display:flex;align-items:center;gap:.45em;background:none;border:1px solid rgba(244,239,230,.3);color:var(--on-dark);border-radius:3px;padding:.62em .8em;font:600 .85rem/1 var(--body);cursor:pointer}
.lang__btn:hover{border-color:#ff8a5c;color:#ff8a5c}
.lang__panel{position:absolute;right:0;top:calc(100% + 12px);background:var(--paper);color:var(--text);padding:16px;border-top:3px solid var(--signal);box-shadow:0 20px 50px -20px rgba(0,0,0,.5);min-width:240px;z-index:80}
.lang__label{font:500 .72rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:.7rem}
.lang__panel .goog-te-gadget{font-family:var(--body)!important;color:var(--muted)!important;font-size:0!important}
.lang__panel .goog-te-gadget .goog-te-combo{font:500 .95rem var(--body)!important;color:var(--text)!important;background:#fff!important;border:1px solid var(--line)!important;border-radius:3px!important;padding:.55em .6em!important;width:100%!important;margin:0!important}
.lang__panel .goog-te-gadget>span,.lang__panel .goog-logo-link{display:none!important}
.goog-te-banner-frame,.skiptranslate>iframe{display:none!important}
body{top:0!important}
#goog-gt-tt,.goog-te-balloon-frame{display:none!important}
.burger{display:none;width:44px;height:44px;background:none;border:1px solid rgba(244,239,230,.3);border-radius:3px;cursor:pointer;position:relative}
.burger span{position:absolute;left:11px;right:11px;height:2px;background:var(--on-dark);transition:translate .25s, rotate .25s}
.burger span:first-child{top:16px}.burger span:last-child{top:25px}
.burger[aria-expanded="true"] span:first-child{translate:0 4.5px;rotate:45deg}
.burger[aria-expanded="true"] span:last-child{translate:0 -4.5px;rotate:-45deg}
.drawer{background:var(--ink);border-top:1px solid rgba(255,255,255,.08);max-height:calc(100svh - var(--head-h));overflow:auto}
.drawer ul{list-style:none;margin:0;padding:8px var(--gutter) 24px}
.drawer a{display:block;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1);color:var(--on-dark);text-decoration:none;font:700 1.35rem/1.1 var(--display);text-transform:uppercase;letter-spacing:.02em}
.drawer a[aria-current]{color:#ff8a5c}

/* Disclaimer strip under header */
.notice{background:var(--signal-soft);border-bottom:1px solid #e9b9a3;color:#4a1d08}
.notice p{width:min(1440px, 100% - 2*var(--gutter));margin:0 auto;padding:.7rem 0;font-size:.84rem;line-height:1.5;display:flex;gap:.9rem;align-items:baseline}
.notice__tag{flex:none;font:500 .7rem/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;background:var(--ink);color:var(--on-dark);padding:.25em .6em;border-radius:2px}

/* Generic section rhythm */
.sec{padding-block:clamp(72px, 10vw, 140px)}
.sec--tight{padding-block:clamp(56px, 7vw, 96px)}
.sec-head{text-align:center;max-width:62rem;margin:0 auto clamp(40px,5vw,72px)}
.sec-head .eyebrow{justify-content:center}
.sec-head .lede{margin-inline:auto}

/* HOME HERO: full-bleed video backdrop, symmetric padding */
.hero{position:relative;overflow:hidden;background:var(--ink);color:var(--on-dark);isolation:isolate}
.hero__media{position:absolute;inset:0;z-index:-2}
.hero__layer{position:absolute;inset:0}
.hero__layer video,.hero__layer img,.hero__layer picture{width:100%;height:100%;object-fit:cover}
.hero__layer picture img{width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg, rgba(9,23,40,.94) 0%, rgba(9,23,40,.78) 42%, rgba(9,23,40,.25) 75%, rgba(9,23,40,.15) 100%), linear-gradient(0deg, rgba(9,23,40,.6), transparent 40%)}
.hero__copy{width:min(var(--max), 100% - 2*var(--gutter));margin-inline:auto;padding-block:clamp(72px, 10vw, 150px)}
.hero__copy>*{max-width:46rem}
.hero h1{font-size:clamp(3.1rem, 8.2vw, 7.6rem);line-height:.88;margin-bottom:.35em;color:var(--on-dark)}
.hero h1 em{font-style:normal;color:#ff7a45}
.hero .lede{color:var(--on-dark-2)}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:2rem}
.hero__meta{display:flex;flex-wrap:wrap;gap:8px 28px;margin:2.2rem 0 0;padding:1.1rem 0 0;border-top:1px solid rgba(244,239,230,.18);font:500 .78rem/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--on-dark-2);list-style:none}
.hero__meta li::before{content:"// ";color:#ff7a45}

/* Page head for guides */
.phead{position:relative;overflow:hidden;background:var(--ink);color:var(--on-dark);isolation:isolate}
.phead__photo{position:absolute;inset:0;z-index:-2;overflow:hidden}
.phead__photo .layer{position:absolute;inset:0}
.phead__photo picture,.phead__photo img{width:100%;height:100%;object-fit:cover}
.phead::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg, rgba(9,23,40,.95) 0%, rgba(9,23,40,.82) 48%, rgba(9,23,40,.35) 100%)}
.phead__copy{width:min(var(--max), 100% - 2*var(--gutter));margin-inline:auto;padding-block:clamp(64px, 8vw, 120px)}
.phead__copy>*{max-width:50rem}
.phead h1{color:var(--on-dark);font-size:clamp(2.8rem, 6.6vw, 6.2rem);line-height:.9}
.phead .lede{color:var(--on-dark-2)}
.crumbs{font:500 .76rem/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark-2);margin-bottom:1.4rem}
.crumbs a{color:var(--on-dark);text-decoration:none}
.crumbs a:hover{color:#ff8a5c}
.crumbs span[aria-hidden]{margin:0 .5em;color:#ff7a45}

/* Scroll-filled giant words */
.fill{background:var(--paper);overflow:hidden}
.fill__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(32px,6vw,96px);align-items:center}
.fill__words{container-type:inline-size;margin:0}
.fill__word{display:block;font:900 22cqi/0.84 var(--display);text-transform:uppercase;letter-spacing:-.005em;color:transparent;-webkit-text-stroke:2px var(--ink);
  background:linear-gradient(90deg, var(--signal) 0 calc(var(--fp, 1) * 100%), transparent 0) no-repeat;-webkit-background-clip:text;background-clip:text}
.fill__word:nth-child(1){--fp:clamp(0, calc(var(--p, 1) * 3 - .45), 1)}
.fill__word:nth-child(2){--fp:clamp(0, calc(var(--p, 1) * 3 - .8), 1)}
.fill__word:nth-child(3){--fp:clamp(0, calc(var(--p, 1) * 3 - 1.15), 1)}
.fill__copy h2{font-size:clamp(2rem,3.6vw,3.2rem)}
.fill__copy p{color:var(--muted)}

/* Triage tool */
.triage{background:var(--ink-2);color:var(--on-dark)}
.triage .sec-head h2{color:var(--on-dark)}
.tri{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);border:1px solid rgba(244,239,230,.16);background:var(--ink)}
.tri__pick{border-right:1px solid rgba(244,239,230,.16);padding:clamp(20px,2.6vw,36px)}
.tri__q{font:500 .76rem/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:#ff8a5c;margin:0 0 1rem}
.tri__opts{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.tri__opt{width:100%;display:flex;align-items:center;gap:14px;text-align:left;background:transparent;border:1px solid rgba(244,239,230,.14);color:var(--on-dark);padding:14px 16px;font:600 1rem/1.3 var(--body);cursor:pointer;border-radius:2px;transition:background .2s,border-color .2s}
.tri__opt:hover{border-color:#ff8a5c}
.tri__opt[aria-pressed="true"]{background:var(--signal);border-color:var(--signal);color:#fff}
.tri__opt .k{font:500 .75rem/1 var(--mono);opacity:.75;min-width:1.6em}
.tri__out{padding:clamp(24px,3.2vw,48px);min-height:100%}
.tri__panel[hidden]{display:none}
.tri__level{display:inline-block;font:500 .74rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:.5em .75em;border-radius:2px;margin-bottom:1rem}
.lvl-now{background:var(--signal);color:#fff}
.lvl-leave{background:#f6d34a;color:#1d1600}
.lvl-soon{background:#d9e3ec;color:var(--ink)}
.tri__panel h3{color:var(--on-dark);font-size:clamp(1.8rem,3vw,2.6rem)}
.tri__steps{counter-reset:s;list-style:none;margin:1.2rem 0 1.4rem;padding:0;display:grid;gap:12px}
.tri__steps li{counter-increment:s;display:grid;grid-template-columns:2.4rem 1fr;gap:12px;color:var(--on-dark-2);line-height:1.5}
.tri__steps li::before{content:counter(s, decimal-leading-zero);font:500 .85rem/1.6 var(--mono);color:#ff8a5c}
.tri__steps strong{color:var(--on-dark)}
.tri__more{font-weight:700;color:#ff8a5c}
.tri__intro p{color:var(--on-dark-2)}

/* Expanding accordion gallery */
.accord{display:flex;gap:6px;height:clamp(460px, 62vh, 620px)}
.accord__panel{position:relative;flex:1 1 0;min-width:0;overflow:hidden;background:var(--ink);color:var(--on-dark);transition:flex-grow .7s cubic-bezier(.2,.7,.1,1);cursor:pointer;border-radius:2px}
.accord__panel.is-active{flex-grow:5.2;cursor:default}
.accord__panel picture,.accord__panel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.accord__panel::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg, rgba(9,23,40,.95) 8%, rgba(9,23,40,.35) 60%, rgba(9,23,40,.55));transition:background .5s}
.accord__tab{position:absolute;z-index:2;inset:0;display:flex;flex-direction:column;justify-content:space-between;align-items:center;padding:22px 0;background:none;border:0;color:var(--on-dark);cursor:pointer;font:inherit;width:100%}
.accord__tab .n{font:500 .8rem/1 var(--mono);color:#ff8a5c}
.accord__tab .t{writing-mode:vertical-rl;rotate:180deg;font:800 1.5rem/1 var(--display);text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
.accord__panel.is-active .accord__tab{opacity:0;pointer-events:none}
.accord__body{position:absolute;z-index:3;left:0;right:0;bottom:0;padding:clamp(22px,3vw,40px);opacity:0;translate:0 16px;transition:opacity .4s .25s, translate .5s .25s;max-width:40rem}
.accord__panel.is-active .accord__body{opacity:1;translate:0 0}
.accord__panel:not(.is-active) .accord__body{visibility:hidden}
.accord__body h3{color:var(--on-dark);font-size:clamp(1.9rem,3.2vw,2.9rem)}
.accord__body p{color:var(--on-dark-2)}
.accord__body a{color:#ff8a5c;font-weight:700}
.accord__body .num{font:500 .8rem/1 var(--mono);color:#ff8a5c;letter-spacing:.14em;display:block;margin-bottom:.8rem}

/* Sticky stacking process cards */
.stack-sec{background:var(--paper-2)}
.stack-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(32px,5vw,80px);align-items:start}
.stack-intro{position:sticky;top:calc(var(--head-h) + 40px)}
.stack{list-style:none;margin:0;padding:0 0 4vh;display:grid;gap:1.1rem}
.stack__card{position:sticky;top:calc(var(--head-h) + 1.4rem + var(--i, 0) * 14px);min-height:250px;background:#fff;border-radius:4px;padding:clamp(1.4rem,3vw,2.3rem);box-shadow:inset 0 0 0 1.5px var(--line), 0 22px 48px -30px rgba(9,23,40,.55);display:grid;grid-template-columns:auto 1fr;gap:1.2rem 1.4rem;align-content:start;z-index:2}
.stack__badge{width:62px;height:62px;display:grid;place-items:center;background:var(--ink);color:#fff;font:800 1.6rem/1 var(--display);border-radius:3px;font-variant-numeric:tabular-nums}
.stack__card h3{margin:.2em 0 .45em}
.stack__card p{color:var(--muted);margin:0}
.stack__card:nth-child(odd) .stack__badge{background:var(--signal-deep)}

/* Technical drawing sheet */
.sheet{background:#0c1d30;color:var(--on-dark);background-image:linear-gradient(rgba(244,239,230,.05) 1px, transparent 1px),linear-gradient(90deg, rgba(244,239,230,.05) 1px, transparent 1px);background-size:32px 32px}
.sheet .sec-head h2{color:var(--on-dark)}
.plates{display:grid;grid-template-columns:repeat(4, minmax(0,1fr));border:1px solid rgba(244,239,230,.25)}
.plate{padding:24px;border-right:1px solid rgba(244,239,230,.25);display:flex;flex-direction:column}
.plate:last-child{border-right:0}
.plate svg{width:100%;height:auto;aspect-ratio:1;color:#e6edf3}
.plate svg .acc{color:#ff7a45}
.plate__id{font:500 .74rem/1 var(--mono);letter-spacing:.14em;color:#ff8a5c;margin:0 0 .6rem}
.plate h3{font-size:1.5rem;color:var(--on-dark);margin:.9rem 0 .4rem}
.plate p{font-size:.93rem;color:var(--on-dark-2);margin:0}
.sheet__foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border:1px solid rgba(244,239,230,.25);border-top:0;padding:12px 24px;font:500 .74rem/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--on-dark-2)}

/* Decision split */
.split{display:grid;grid-template-columns:1fr 1fr;border-top:2px solid var(--ink)}
.split__col{padding:clamp(24px,3vw,44px) clamp(18px,3vw,40px) 0}
.split__col+.split__col{border-left:1px solid var(--line)}
.split__col h3{display:flex;align-items:center;gap:.5em}
.split__col h3 .dot{width:.55em;height:.55em;border-radius:50%;background:var(--signal);flex:none}
.split__col--wait h3 .dot{background:var(--steel)}
.split__col ul{list-style:none;margin:0;padding:0}
.split__col li{padding:.85rem 0;border-bottom:1px solid var(--line)}
.split__col li strong{display:block}
.split__col li span{color:var(--muted);font-size:.95rem}

/* Gas band */
.gas{background:#1b1608;color:#f7efd6;position:relative;overflow:hidden}
.gas__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,80px);align-items:center}
.gas h2{color:#f6d34a}
.gas p{color:#e7dcbc}
.gas ol{margin:0;padding:0;list-style:none;counter-reset:g;display:grid;gap:14px}
.gas li{counter-increment:g;display:grid;grid-template-columns:3rem 1fr;gap:12px;border-top:1px solid rgba(246,211,74,.3);padding-top:14px;color:#f7efd6}
.gas li::before{content:counter(g);font:800 2rem/1 var(--display);color:#f6d34a}
.gas__stripe{position:absolute;left:0;right:0;top:0;height:10px;background:repeating-linear-gradient(-45deg,#f6d34a 0 14px,#1b1608 14px 28px);transform-origin:left;scale:calc(.2 + var(--p, 1) * 1.6) 1}

/* Numbered questions with outlined numerals */
.qs{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,5vw,90px);align-items:start}
.qs__list{list-style:none;margin:0;padding:0;counter-reset:q}
.qs__list li{counter-increment:q;display:grid;grid-template-columns:clamp(4rem,7vw,6.2rem) 1fr;gap:18px;padding:1.2rem 0;border-bottom:1px solid var(--line);align-items:baseline}
.qs__list li::before{content:counter(q, decimal-leading-zero);font:900 clamp(3rem,5.4vw,4.6rem)/.8 var(--display);color:transparent;-webkit-text-stroke:1.5px var(--signal-deep)}
.qs__list strong{display:block;font-size:1.08rem}
.qs__list span{color:var(--muted)}
.qs__aside{position:sticky;top:calc(var(--head-h) + 40px)}
.qs__photo{overflow:hidden;border-radius:2px;margin-top:1.6rem;aspect-ratio:4/3;position:relative}
.qs__photo .layer{position:absolute;inset:0}
.qs__photo picture,.qs__photo img{width:100%;height:100%;object-fit:cover}

/* Request band */
.reqband{background:var(--signal);color:#fff}
.reqband__grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(24px,4vw,64px);align-items:center}
.reqband h2{color:#fff;margin:0}
.reqband p{color:#fff3ec;margin:0 0 1.4rem}
.reqband .btn{background:var(--ink);border-color:var(--ink);color:#fff}
.reqband .btn:hover{background:#000;border-color:#000}

/* FAQ */
.faq{max-width:58rem;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;padding:1.3rem 0;font:700 1.12rem/1.35 var(--body)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:400 1.6rem/1 var(--mono);color:var(--signal-deep);transition:rotate .25s}
.faq details[open] summary::after{rotate:45deg}
.faq details p{color:var(--muted);padding-bottom:1.2rem;margin:0}

/* Guide article layout */
.guide{display:grid;grid-template-columns:minmax(0,15rem) minmax(0,46rem) minmax(0,1fr);gap:clamp(28px,4vw,64px);padding-block:clamp(56px,7vw,100px)}
.toc{position:sticky;top:calc(var(--head-h) + 32px);align-self:start;font-size:.9rem}
.toc p{font:500 .72rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.toc a{display:block;padding:.45rem 0 .45rem 1rem;margin-left:-2px;border-left:2px solid transparent;text-decoration:none;color:var(--muted);line-height:1.35}
.toc a:hover,.toc a.is-on{color:var(--ink);border-left-color:var(--signal)}
.toc__bar{height:3px;background:var(--line);margin-top:1.2rem;overflow:hidden}
.toc__bar span{display:block;height:100%;background:var(--signal);transform-origin:left;scale:var(--p, 0) 1}
.prose h2{font-size:clamp(2rem,3.6vw,3rem);margin-top:2.2em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.6em}
.prose ul,.prose ol{padding-left:1.2em}
.prose li{margin-bottom:.5em}
.prose li::marker{color:var(--signal-deep)}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.95rem}
.prose th,.prose td{text-align:left;padding:.8em .9em;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{font:500 .74rem/1.3 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border-bottom:2px solid var(--ink)}
.tablewrap{overflow-x:auto}
.callout{margin:2em 0;padding:1.4em 1.6em;background:var(--ink);color:var(--on-dark);border-left:6px solid var(--signal)}
.callout p{color:var(--on-dark-2);margin:0}
.callout strong{color:var(--on-dark)}
.callout--warn{background:#1b1608;border-left-color:#f6d34a}
.callout--warn p{color:#e7dcbc}
.messy{margin:2em 0;padding:1.4em 1.6em;border:1.5px dashed var(--steel);background:#fbf9f5}
.messy__k{font:500 .72rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--signal-deep);margin:0 0 .8em}
.matrix{margin:2em 0;display:grid;gap:0;border-top:2px solid var(--ink)}
.matrix div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:20px;padding:.9em 0;border-bottom:1px solid var(--line)}
.matrix b{font-weight:700}
.matrix span{color:var(--muted)}
.figure{margin:2.2em 0;overflow:hidden;position:relative;aspect-ratio:3/2;border-radius:2px}
.figure .layer{position:absolute;inset:0}
.figure picture,.figure img{width:100%;height:100%;object-fit:cover}
.aside-rail{align-self:start;position:sticky;top:calc(var(--head-h) + 32px)}
.rail-card{background:var(--ink);color:var(--on-dark);padding:24px;border-top:4px solid var(--signal)}
.rail-card p{color:var(--on-dark-2);font-size:.93rem}
.rail-card .k{font:500 .72rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:#ff8a5c}
.rail-card .btn{width:100%;justify-content:center;margin-top:.4rem}

/* Guide inner pattern: sticky step stack reused, giant fill word reused */
.related{background:var(--paper-2)}
.related__list{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.related__list a{display:grid;grid-template-columns:4rem minmax(0,1fr) minmax(0,1.2fr) 2rem;gap:20px;align-items:center;padding:1.3rem 0;border-bottom:1px solid var(--line);text-decoration:none;transition:padding .3s, background .3s}
.related__list a:hover{padding-left:12px;background:rgba(255,255,255,.5);color:var(--text)}
.related__list .n{font:500 .8rem/1 var(--mono);color:var(--signal-deep)}
.related__list .t{font:800 1.6rem/1 var(--display);text-transform:uppercase}
.related__list .d{color:var(--muted);font-size:.95rem}
.related__list .a{font:400 1.4rem/1 var(--mono);color:var(--signal-deep)}

/* Contact form */
.req{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(28px,5vw,80px);padding-block:clamp(56px,7vw,100px)}
.form{display:grid;gap:18px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label,.field legend{display:block;font:600 .92rem/1.3 var(--body);margin-bottom:.45rem}
.field small{display:block;color:var(--muted);font-size:.84rem;margin-top:.35rem}
.field input,.field select,.field textarea{width:100%;font:400 1rem/1.4 var(--body);color:var(--text);background:#fff;border:1.5px solid var(--line);border-radius:3px;padding:.8em .9em}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ink);outline:3px solid rgba(226,76,18,.35);outline-offset:0}
.field textarea{min-height:150px;resize:vertical}
.field fieldset{border:0;margin:0;padding:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{display:inline-flex;align-items:center;gap:.5em;border:1.5px solid var(--line);border-radius:3px;padding:.55em .8em;font-weight:500;background:#fff;cursor:pointer;margin:0}
.chips input{width:auto;accent-color:var(--signal-deep)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.submit-row{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center;padding-top:6px;border-top:1px solid var(--line)}
.submit-row p{font-size:.84rem;color:var(--muted);margin:0}
.alert{padding:1em 1.2em;border-radius:3px;margin-bottom:1.4rem}
.alert--ok{background:#e3efe6;border-left:5px solid #2f6b45}
.alert--err{background:#fbe5dc;border-left:5px solid var(--signal-deep)}
.req__aside .rail-card{margin-bottom:20px}
.req__aside h2{font-size:1.9rem}

/* Legal pages */
.legal{max-width:48rem;margin:0 auto;padding-block:clamp(56px,7vw,100px)}
.legal h2{font-size:clamp(1.7rem,3vw,2.3rem);margin-top:1.8em}

/* Footer */
.site-foot{background:var(--ink);color:var(--on-dark-2);padding:0 0 calc(90px + env(safe-area-inset-bottom));position:relative;font-size:.95rem}
.site-foot__rule{height:4px;background:var(--signal);transform-origin:left}
.site-foot__grid{width:min(var(--max), 100% - 2*var(--gutter));margin:0 auto;padding-top:clamp(48px,6vw,80px);display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,.7fr);gap:clamp(28px,4vw,64px)}
.site-foot__brand img{height:44px;width:auto;margin-bottom:1.2rem}
.site-foot__head{font:500 .74rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:#ff8a5c}
.site-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.site-foot a{color:var(--on-dark);text-decoration:none}
.site-foot a:hover{color:#ff8a5c;text-decoration:underline}
.site-foot__legal{width:min(var(--max), 100% - 2*var(--gutter));margin:clamp(36px,4vw,56px) auto 0;padding-top:24px;border-top:1px solid rgba(244,239,230,.14)}
.site-foot__disclaimer{font-size:.86rem;max-width:72rem}
.site-foot__disclaimer strong{color:var(--on-dark)}
.site-foot__row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:.85rem}
.site-foot__row p{margin:0}
.site-foot .mk-toggle{color:var(--on-dark)}
.credit-72{color:var(--on-dark-2)!important}

/* Mobile app bar */
.appbar{display:none}

/* Responsive */
@media (max-width: 1100px){
  .guide{grid-template-columns:minmax(0,1fr) minmax(0,16rem)}
  .toc{display:none}
  .plates{grid-template-columns:repeat(2, minmax(0,1fr))}
  .plate:nth-child(2){border-right:0}
  .plate:nth-child(-n+2){border-bottom:1px solid rgba(244,239,230,.25)}
}
@media (max-width: 960px){
  :root{--head-h:64px}
  .nav,.lang__btn span,.site-head__cta{display:none}
  .burger{display:block}
  .brand img{height:32px}
  .site-head__tools{margin-left:auto}
  .fill__grid,.stack-grid,.gas__grid,.qs,.reqband__grid,.req,.tri{grid-template-columns:1fr}
  .stack-intro,.qs__aside{position:static}
  .tri__pick{border-right:0;border-bottom:1px solid rgba(244,239,230,.16)}
  .guide{grid-template-columns:1fr}
  .aside-rail{position:static}
  .accord{flex-direction:column;height:auto}
  .accord__panel{flex:none;height:76px;transition:height .6s cubic-bezier(.2,.7,.1,1)}
  .accord__panel.is-active{height:440px}
  .accord__tab{flex-direction:row;justify-content:flex-start;gap:16px;padding:0 20px}
  .accord__tab .t{writing-mode:horizontal-tb;rotate:none;font-size:1.35rem}
  .related__list a{grid-template-columns:3rem minmax(0,1fr) 2rem}
  .related__list .d{display:none}
  .appbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:55;background:rgba(9,23,40,.97);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid rgba(255,255,255,.1);padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
  .appbar a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 2px;color:var(--on-dark-2);text-decoration:none;font:600 .7rem/1.1 var(--body);border-radius:6px;min-height:52px;justify-content:center}
  .appbar svg{width:22px;height:22px}
  .appbar__main{background:#c9420e;color:#fff!important}
}
@media (max-width: 640px){
  .plates{grid-template-columns:1fr}
  .plate{border-right:0!important;border-bottom:1px solid rgba(244,239,230,.25)}
  .plate:last-child{border-bottom:0}
  .split{grid-template-columns:1fr}
  .split__col+.split__col{border-left:0;border-top:2px solid var(--ink);margin-top:24px}
  .form .row{grid-template-columns:1fr}
  .submit-row{grid-template-columns:1fr}
  .notice p{flex-direction:column;gap:.4rem}
  .hero::after{background:linear-gradient(0deg, rgba(9,23,40,.95) 30%, rgba(9,23,40,.6) 100%)}
  .matrix div{grid-template-columns:1fr;gap:4px}
  .stack__card{grid-template-columns:1fr;min-height:0}
}
@media (prefers-reduced-motion: reduce){
  .accord__panel,.accord__body,.btn{transition:none}
}
html[data-motion-tier="essential"] .accord__panel,html[data-motion-tier="essential"] .accord__body{transition:none}
@media print{.site-head,.appbar,.notice,.site-foot{display:none}}

/* Additions */
.phead--plain::after{display:none}
.phead--plain{background:var(--ink) linear-gradient(120deg, var(--ink) 55%, var(--ink-3))}
html:not(.mk-js) .tri__panel[hidden]{display:block;margin-bottom:2.4rem}
.notice a{color:inherit}
.triage .lede,.sheet .lede{color:var(--on-dark-2)}
.notice__short{display:none}
@media (max-width: 640px){.notice__full{display:none}.notice__short{display:inline}.notice p{font-size:.8rem}}
@media (max-width: 960px){.site-foot__grid{grid-template-columns:1fr 1fr}.site-foot__brand{grid-column:1/-1}}
@media (max-width: 520px){.site-foot__grid{grid-template-columns:1fr}}
@media (max-width: 960px){.fill__word{font-size:31cqi}}
.phead__copy>:last-child,.hero__copy>:last-child{margin-bottom:0}