/* Top Bentonite — design system */
@font-face{font-family:"Heebo";font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fonts/heebo-hebrew-wght-normal.woff2) format("woff2");unicode-range:U+0307-0308,U+0590-05FF,U+200C-2010,U+20AA,U+25CC,U+FB1D-FB4F}
@font-face{font-family:"Heebo";font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fonts/heebo-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --ink:#0C1419;--ink-2:#13212A;--ink-3:#1C2E3A;
  --clay:#F4F0E8;--sand:#E7DFD1;--paper:#FFFFFF;
  --signal:#FF5B14;--signal-dk:#C2410C;--teal:#1FB5A0;--teal-dk:#0F766E;
  --text:#0C1419;--muted:#46525C;--on-dark:#F4F0E8;--on-dark-muted:#B9C3CA;
  --line:rgba(12,20,25,.12);--line-dk:rgba(244,240,232,.14);
  --radius:18px;--radius-lg:28px;
  --shadow:0 18px 50px -20px rgba(12,20,25,.35);
  --wrap:min(1240px,100% - 40px);
  --ease:cubic-bezier(.2,.7,.2,1);
  --fs-hero:clamp(2.6rem,6.4vw,6rem);
  --fs-h2:clamp(2rem,4.2vw,3.6rem);
  --fs-h3:clamp(1.25rem,1.7vw,1.55rem);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:"Heebo",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:1.0625rem;line-height:1.75;color:var(--text);background:var(--clay);overflow-x:hidden;text-rendering:optimizeLegibility}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit}
button,input,select{font:inherit;color:inherit}
h1,h2,h3,h4{line-height:1.12;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);font-weight:700}
p{margin:0 0 1.1em}
ul,ol{padding-inline-start:1.2em}
.wrap{width:var(--wrap);margin-inline:auto}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;inset-inline-start:12px;top:-60px;z-index:2000;background:var(--signal);color:var(--ink);padding:10px 16px;border-radius:10px;font-weight:700;text-decoration:none}
.skip:focus{top:12px}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:6px}

/* ---------- Header ---------- */
.site-header{position:fixed;inset-inline:0;top:0;z-index:900;transition:background .35s var(--ease),box-shadow .35s var(--ease),transform .35s var(--ease)}
.site-header .bar{display:flex;align-items:center;gap:24px;height:78px}
.site-header.solid,.site-header.on-light{background:rgba(12,20,25,.92);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);box-shadow:0 10px 30px -18px rgba(0,0,0,.6)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--on-dark);flex-shrink:0}
.brand svg,.brand img{width:44px;height:44px}
.brand-txt{display:flex;flex-direction:column;line-height:1}
.brand-name{font-size:1.45rem;letter-spacing:-.01em;white-space:nowrap}
.brand-name b{font-weight:900}
.brand-name span{font-weight:300}
.brand-tag{font-size:.6rem;letter-spacing:.32em;font-weight:600;color:var(--teal);margin-top:6px;direction:ltr;text-align:right}
.nav{margin-inline-start:auto}
.nav>ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav li{position:relative}
.nav a,.nav .dd-btn{white-space:nowrap;display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:999px;color:var(--on-dark);text-decoration:none;font-weight:500;font-size:.98rem;background:none;border:0;cursor:pointer;transition:background .25s}
.nav a:hover,.nav .dd-btn:hover,.nav a[aria-current="page"]{background:rgba(244,240,232,.1)}
.nav .dd-btn svg{width:12px;transition:transform .25s}
.nav .sub{position:absolute;top:calc(100% + 8px);inset-inline-start:0;min-width:270px;list-style:none;margin:0;padding:10px;background:var(--ink-2);border:1px solid var(--line-dk);border-radius:16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s var(--ease)}
.nav li:hover>.sub,.nav li:focus-within>.sub,.nav li.open>.sub{opacity:1;visibility:visible;transform:none}
.nav .sub a{border-radius:10px;padding:10px 12px;font-size:.95rem}
.nav .sub a.parent{color:var(--teal);font-weight:700}
.header-cta{display:flex;gap:10px;align-items:center}
.menu-toggle{display:none}

/* ---------- Buttons ---------- */
.btn{--b:var(--signal);display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:1rem;text-decoration:none;border:2px solid var(--b);background:var(--b);color:var(--ink);cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px -12px var(--b)}
.btn svg{width:20px;height:20px;flex-shrink:0}
.btn-ghost{background:transparent;color:var(--on-dark);--b:rgba(244,240,232,.5)}
.btn-ghost:hover{background:rgba(244,240,232,.08)}
.btn-wa{--b:#25D366;color:#06260F}
.btn-dark{--b:var(--ink);color:var(--on-dark)}
.btn-sm{padding:10px 18px;font-size:.95rem}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;display:grid;align-items:end;color:var(--on-dark);background:var(--ink);overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);animation:heroZoom 18s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(12,20,25,.55) 0%,rgba(12,20,25,.35) 35%,rgba(12,20,25,.92) 88%),linear-gradient(90deg,rgba(12,20,25,.0),rgba(12,20,25,.55))}
.hero-inner{padding:150px 0 72px;display:grid;gap:28px}
.hero h1{font-size:var(--fs-hero);font-weight:900;max-width:15ch;margin:0;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--signal)}
.hero .lead{font-size:clamp(1.1rem,1.6vw,1.35rem);max-width:56ch;color:var(--on-dark);opacity:.92;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:10px;padding-top:24px;border-top:1px solid var(--line-dk);font-size:.95rem;color:var(--on-dark-muted)}
.hero-meta strong{color:var(--on-dark);font-size:1.6rem;font-weight:800;display:block;line-height:1.1}
.page-hero{min-height:72svh}
.page-hero h1{font-size:clamp(2.3rem,5.2vw,4.6rem);max-width:18ch}
.crumbs{font-size:.9rem;color:var(--on-dark-muted)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumbs li+li::before{content:"‹";margin-inline-end:6px;opacity:.6}
.crumbs a{text-decoration:none;color:var(--on-dark)}
.crumbs a:hover{color:var(--signal)}

/* Strata motif — signature brand element */
.strata{position:absolute;inset-inline:0;bottom:0;height:10px;display:grid;grid-template-rows:repeat(3,1fr);z-index:1}
.strata i{display:block;background:var(--teal)}
.strata i:nth-child(2){opacity:.6}.strata i:nth-child(3){opacity:.3}
.depth-gauge{position:fixed;inset-inline-end:22px;top:50%;transform:translateY(-50%);z-index:50;display:flex;flex-direction:column;align-items:center;gap:10px;font-size:.7rem;font-weight:700;letter-spacing:.12em;color:var(--muted);pointer-events:none;mix-blend-mode:normal}
.depth-gauge .track{width:3px;height:180px;background:var(--line);border-radius:3px;position:relative;overflow:hidden}
.depth-gauge .fill{position:absolute;top:0;inset-inline:0;height:0;background:var(--signal);border-radius:3px}
.depth-gauge .val{direction:ltr;font-variant-numeric:tabular-nums;background:var(--paper);padding:3px 8px;border-radius:99px;box-shadow:0 4px 14px -6px rgba(0,0,0,.3);color:var(--ink)}

/* ---------- Panels (full-width storytelling screens) ---------- */
.panel{position:relative;padding:clamp(80px,12vw,150px) 0;overflow:hidden}
.panel.screen{min-height:100svh;display:grid;grid-template-columns:minmax(0,1fr);align-items:center}
.split>*,.content-grid>*,.calc>*,.compare>*,.foot-grid>*{min-width:0}
.panel.dark{background:var(--ink);color:var(--on-dark)}
.panel.dark p,.panel.dark li{color:var(--on-dark-muted)}
.panel.sand{background:var(--sand)}
.panel.paper{background:var(--paper)}
.panel.signal{background:var(--signal);color:var(--ink)}
.panel h2{max-width:20ch}
.panel .intro{font-size:clamp(1.08rem,1.4vw,1.28rem);max-width:62ch;color:var(--muted)}
.panel.dark .intro{color:var(--on-dark-muted)}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,90px);align-items:center}
.split.rev>:first-child{order:2}
.media-frame{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/5;background:var(--ink-3);box-shadow:var(--shadow)}
.media-frame.wide{aspect-ratio:16/10}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.media-frame:hover img{transform:scale(1.04)}
.media-frame figcaption{position:absolute;inset-inline:16px;bottom:16px;background:rgba(12,20,25,.78);color:var(--on-dark);padding:10px 14px;border-radius:12px;font-size:.88rem;backdrop-filter:blur(6px)}
.bg-word{position:absolute;inset-inline-end:-2vw;bottom:-4vw;font-size:clamp(7rem,20vw,22rem);font-weight:900;line-height:.8;color:transparent;-webkit-text-stroke:1px rgba(244,240,232,.08);pointer-events:none;user-select:none;white-space:nowrap}
.panel:not(.dark) .bg-word{-webkit-text-stroke:1px rgba(12,20,25,.07)}

/* Catalog — horizontal service rail */
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,360px);gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:8px 2px 26px;scrollbar-width:thin;scrollbar-color:var(--signal) transparent;overscroll-behavior-x:contain}
.rail>*{scroll-snap-align:start}
.rail-nav{display:flex;gap:10px}
.rail-nav button{width:52px;height:52px;border-radius:50%;border:1.5px solid rgba(244,240,232,.45);background:rgba(244,240,232,.06);color:var(--on-dark);cursor:pointer;display:grid;place-items:center;transition:.25s}
.rail-nav button:hover{background:var(--signal);color:var(--ink);border-color:var(--signal)}
.panel:not(.dark) .rail-nav button{border-color:var(--line);color:var(--ink)}
.card{position:relative;display:flex;flex-direction:column;border-radius:var(--radius-lg);overflow:hidden;background:var(--ink-2);color:var(--on-dark);text-decoration:none;min-height:440px;isolation:isolate;transition:transform .45s var(--ease)}
.card:hover{transform:translateY(-6px)}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 1s var(--ease);opacity:.75}
.card:hover img{transform:scale(1.07)}
.card::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(12,20,25,0) 25%,rgba(12,20,25,.94) 85%)}
.card-body{margin-top:auto;padding:26px}
.card-body h3{margin-bottom:.35em}
.card-body p{color:var(--on-dark-muted);font-size:.97rem;margin:0}
.card .go{position:absolute;top:20px;inset-inline-end:20px;width:46px;height:46px;border-radius:50%;background:var(--signal);color:var(--ink);display:grid;place-items:center;transform:rotate(45deg);transition:transform .35s var(--ease)}
.card:hover .go{transform:rotate(0)}
.card .go svg{width:20px}
.tile-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.tile{display:block;padding:26px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);text-decoration:none;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.panel.dark .tile{background:var(--ink-2);border-color:var(--line-dk)}
a.tile:hover{transform:translateY(-4px);border-color:var(--signal);box-shadow:var(--shadow)}
.tile .ico{width:52px;height:52px;border-radius:14px;background:var(--ink);color:var(--signal);display:grid;place-items:center;margin-bottom:16px}
.panel.dark .tile .ico{background:var(--signal);color:var(--ink)}
.tile .ico svg{width:26px;height:26px}
.tile h3{margin-bottom:.4em}
.tile p{margin:0;color:var(--muted);font-size:.98rem}
.panel.dark .tile p{color:var(--on-dark-muted)}

/* Stats / counters */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:2px;background:var(--line);border-radius:var(--radius);overflow:hidden;margin:34px 0}
.panel.dark .stats{background:var(--line-dk)}
.stat{background:var(--clay);padding:28px 24px}
.panel.paper .stat{background:var(--paper)}.panel.sand .stat{background:var(--sand)}
.panel.dark .stat{background:var(--ink)}
.stat b{display:block;font-size:clamp(2.2rem,4vw,3.4rem);font-weight:900;line-height:1;color:var(--signal-dk);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.panel.dark .stat b{color:var(--signal)}
.stat span{display:block;margin-top:10px;color:var(--muted);font-size:.95rem;line-height:1.5}
.panel.dark .stat span{color:var(--on-dark-muted)}

/* Steps / process */
.steps{list-style:none;padding:0;margin:36px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;counter-reset:s}
.steps li{position:relative;padding:28px 24px 24px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);counter-increment:s}
.panel.dark .steps li{background:var(--ink-2);border-color:var(--line-dk)}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-size:2.4rem;font-weight:900;color:var(--signal-dk);line-height:1;margin-bottom:14px}
.panel.dark .steps li::before{color:var(--signal)}
.steps li strong{display:block;font-size:1.12rem;margin-bottom:6px;color:inherit}
.steps li p{margin:0;font-size:.97rem;color:var(--muted)}
.panel.dark .steps li p{color:var(--on-dark-muted)}

/* Bars infographic */
.bars{display:grid;gap:16px;margin:30px 0}
.bar-row{display:grid;grid-template-columns:minmax(120px,190px) 1fr auto;gap:14px;align-items:center;font-size:.97rem}
.bar-row .track{height:14px;background:var(--line);border-radius:99px;overflow:hidden}
.panel.dark .bar-row .track{background:var(--line-dk)}
.bar-row .track i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--signal));border-radius:99px;transition:width 1.4s var(--ease)}
.bar-row.in .track i,.in .bar-row .track i{width:var(--w)}
.bar-row b{font-variant-numeric:tabular-nums;min-width:5ch;text-align:end}

/* Soil profile infographic */
.soil{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--paper);margin:30px 0}
.soil-layer{display:grid;grid-template-columns:90px 1fr;align-items:stretch;min-height:74px;border-top:1px dashed rgba(12,20,25,.15)}
.soil-layer:first-child{border-top:0}
.soil-layer .d{display:grid;place-items:center;font-weight:800;font-size:.9rem;background:var(--ink);color:var(--on-dark);direction:ltr}
.soil-layer .t{padding:14px 18px;font-size:.96rem;line-height:1.55}
.soil-layer .t strong{display:block}
.soil-layer.l1 .t{background:#EADFC9}.soil-layer.l2 .t{background:#D9C7A5}.soil-layer.l3 .t{background:#BFD9D2}.soil-layer.l4 .t{background:#A9C9C2}.soil-layer.l5 .t{background:#C9C9C2}

/* Prose (article content) */
.prose{max-width:780px}
.prose h2{font-size:clamp(1.7rem,3vw,2.5rem);margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose a,.panel p a,.panel li a{color:var(--teal-dk);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px;font-weight:600}
.panel.dark p a,.panel.dark li a{color:var(--teal)}
.prose ul li,.prose ol li{margin-bottom:.45em}
.lede{font-size:clamp(1.15rem,1.6vw,1.35rem);line-height:1.7;color:var(--ink);font-weight:500}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:clamp(30px,5vw,70px);align-items:start}
.aside{position:sticky;top:104px;display:grid;gap:18px}
.aside-card{border-radius:var(--radius);padding:24px;background:var(--ink);color:var(--on-dark)}
.aside-card p{color:var(--on-dark-muted);font-size:.95rem}
.aside-card .btn{width:100%;margin-top:8px}
.aside-card .label{font-weight:800;font-size:1.15rem;display:block;margin-bottom:6px}
.toc{border-radius:var(--radius);padding:22px;background:var(--paper);border:1px solid var(--line);font-size:.95rem}
.toc .label{font-weight:800;display:block;margin-bottom:8px}
.toc ol{margin:0;padding-inline-start:1.1em}
.toc a{text-decoration:none;color:var(--muted)}
.toc a:hover{color:var(--signal-dk)}

/* Tables */
.table-wrap{overflow-x:auto;margin:26px 0;border-radius:var(--radius);border:1px solid var(--line);background:var(--paper);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;min-width:560px;font-size:.97rem}
caption{caption-side:top;text-align:start;padding:16px 18px 6px;font-weight:700;color:var(--muted);font-size:.92rem}
th,td{padding:14px 18px;text-align:start;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--ink);color:var(--on-dark);font-weight:700;white-space:nowrap}
tbody tr:hover{background:rgba(31,181,160,.07)}
tbody tr:last-child td{border-bottom:0}
td.num{font-variant-numeric:tabular-nums;white-space:nowrap}

/* Compare + callouts */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}
.compare>div{padding:26px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line)}
.compare>div:first-child{border-top:5px solid var(--signal)}
.compare>div:last-child{border-top:5px solid var(--teal)}
.compare h3{margin-bottom:.6em}
.compare ul{margin:0;padding-inline-start:1.1em}
.callout{position:relative;margin:30px 0;padding:24px 26px;border-radius:var(--radius);background:var(--ink);color:var(--on-dark);border-inline-start:6px solid var(--signal)}
.callout p:last-child{margin:0}
.callout p{color:var(--on-dark-muted)}
.callout strong{color:var(--on-dark)}
.checks{list-style:none;padding:0;margin:20px 0;display:grid;gap:12px}
.checks li{position:relative;padding-inline-start:36px}
.checks li::before{content:"";position:absolute;inset-inline-start:0;top:4px;width:24px;height:24px;border-radius:50%;background:var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230C1419' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/14px no-repeat}

/* FAQ */
.faq{display:grid;gap:12px;margin:28px 0}
.faq details{border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);transition:border-color .25s}
.panel.dark .faq details{background:var(--ink-2);border-color:var(--line-dk)}
.faq details[open]{border-color:var(--signal)}
.faq summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;font-size:1.08rem;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex-shrink:0;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--signal);font-size:1.3rem;transition:transform .3s}
.panel.dark .faq summary::after{background:var(--signal);color:var(--ink)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 24px 20px;color:var(--muted)}
.panel.dark .faq .a{color:var(--on-dark-muted)}
.faq .a p:last-child{margin:0}

/* Calculator */
.calc{display:grid;grid-template-columns:1.1fr .9fr;gap:0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);margin:30px 0;background:var(--paper)}
.calc form{padding:clamp(22px,3.5vw,40px);display:grid;gap:18px}
.calc label{display:grid;gap:8px;font-weight:600;font-size:.97rem}
.calc input[type=number],.calc select{width:100%;padding:13px 14px;border-radius:12px;border:1.5px solid rgba(12,20,25,.25);background:var(--clay);font-size:1rem}
.calc input[type=range]{width:100%;accent-color:var(--signal)}
.calc .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc output{font-variant-numeric:tabular-nums}
.calc .result{background:var(--ink);color:var(--on-dark);padding:clamp(22px,3.5vw,40px);display:flex;flex-direction:column;justify-content:center;gap:14px}
.calc .result .big{direction:ltr;text-align:right;font-size:clamp(1.7rem,3vw,2.6rem);font-weight:900;color:var(--signal);line-height:1.05;font-variant-numeric:tabular-nums}
.calc .result dl{display:grid;grid-template-columns:1fr auto;gap:8px 16px;margin:0;font-size:.95rem;color:var(--on-dark-muted)}
.calc .result dd{margin:0;color:var(--on-dark);font-weight:700;font-variant-numeric:tabular-nums}
.calc .note{font-size:.85rem;color:var(--on-dark-muted);margin:0}

/* Contact form */
.form{display:grid;gap:14px}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:grid;gap:6px;font-weight:600;font-size:.95rem}
.form input,.form select,.form textarea{width:100%;padding:14px;border-radius:12px;border:1.5px solid rgba(12,20,25,.25);background:var(--paper);font-size:1rem;font-family:inherit}
.panel.dark .form input,.panel.dark .form select,.panel.dark .form textarea{background:var(--ink-2);border-color:var(--line-dk);color:var(--on-dark)}

/* Related links */
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:30px}
.related a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:20px 22px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);text-decoration:none;font-weight:700;transition:.3s var(--ease)}
.related a:hover{border-color:var(--signal);transform:translateY(-3px)}
.related a span{display:block;font-weight:400;font-size:.9rem;color:var(--muted)}
.related a svg{width:20px;flex-shrink:0;color:var(--signal-dk)}

/* CTA band */
.cta-band{position:relative;background:var(--signal);color:var(--ink);padding:clamp(70px,10vw,120px) 0;overflow:hidden}
.cta-band h2{font-size:clamp(2.2rem,5vw,4.4rem);max-width:16ch;font-weight:900}
.cta-band p{font-size:1.15rem;max-width:52ch;font-weight:500}
.cta-band .btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.cta-band .btn{--b:var(--ink);color:var(--on-dark)}
.cta-band .btn-wa{--b:#0C1419;color:#fff}
.cta-band .btn-line{background:transparent;color:var(--ink);--b:var(--ink)}
.cta-band .pile{position:absolute;inset-inline-end:6%;top:0;bottom:0;width:clamp(60px,9vw,120px);display:grid;grid-template-rows:auto 1fr;opacity:.95}
.cta-band .pile::before{content:"";height:28px;background:var(--ink);border-radius:4px;margin-inline:-40%}
.cta-band .pile::after{content:"";background:repeating-linear-gradient(180deg,var(--ink) 0 22px,transparent 22px 30px);clip-path:polygon(0 0,100% 0,100% 92%,50% 100%,0 92%)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--on-dark-muted);padding:80px 0 0;position:relative}
.site-footer a{text-decoration:none;color:var(--on-dark-muted);transition:color .2s}
.site-footer a:hover{color:var(--signal)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-grid .h{display:block;color:var(--on-dark);font-weight:800;margin-bottom:14px;font-size:1.05rem}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:.96rem}
.foot-about p{font-size:.96rem;max-width:40ch;margin-top:18px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-dk);color:var(--on-dark)}
.socials a:hover{background:var(--signal);color:var(--ink);border-color:var(--signal)}
.socials svg{width:20px;height:20px}
.foot-bottom{margin-top:60px;border-top:1px solid var(--line-dk);padding:26px 0 34px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;font-size:.9rem}
.foot-bottom ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px 20px;margin:0;padding:0}
.built{display:inline-flex;align-items:center;gap:10px;color:var(--on-dark-muted)}
.built img{height:30px;width:auto;border-radius:8px;background:#fff;padding:4px 8px;box-sizing:content-box}

/* ---------- Floating UI ---------- */
.fab{position:fixed;z-index:800;bottom:22px;display:flex;flex-direction:column;gap:12px}
.fab-start{inset-inline-start:22px}
.fab-end{inset-inline-end:22px}
.fab a,.fab button{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;border:0;cursor:pointer;box-shadow:0 12px 30px -10px rgba(0,0,0,.45);transition:transform .25s var(--ease),opacity .3s}
.fab a:hover,.fab button:hover{transform:scale(1.08)}
.fab svg{width:26px;height:26px}
.fab .wa{background:#25D366;color:#fff}
.fab .ph{background:var(--signal);color:var(--ink)}
.fab .up{background:var(--ink);color:var(--on-dark);border:1px solid var(--line-dk)!important;opacity:0;pointer-events:none}
.fab .up.show{opacity:1;pointer-events:auto}
.fab .a11y-btn{background:#1D4ED8;color:#fff}
.a11y-panel{position:fixed;z-index:1100;bottom:92px;inset-inline-start:22px;width:min(320px,calc(100vw - 44px));background:var(--paper);color:var(--ink);border-radius:20px;box-shadow:0 30px 60px -20px rgba(0,0,0,.5);padding:20px;display:none}
.a11y-panel.open{display:block}
.a11y-panel .h{font-weight:800;font-size:1.1rem;display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.a11y-panel .h button{background:none;border:0;font-size:1.6rem;cursor:pointer;line-height:1}
.a11y-panel .opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.a11y-panel .opts button{padding:12px 10px;border-radius:12px;border:1.5px solid var(--line);background:var(--clay);cursor:pointer;font-size:.9rem;font-weight:600;text-align:center}
.a11y-panel .opts button[aria-pressed="true"]{background:var(--ink);color:var(--on-dark);border-color:var(--ink)}
.a11y-panel a{display:block;margin-top:12px;font-size:.9rem;text-align:center;color:var(--teal-dk)}
.mobile-bar{display:none}

/* a11y modes */
html.a11y-contrast{--clay:#fff;--sand:#fff;--paper:#fff;--muted:#000;--text:#000;--on-dark-muted:#fff;--line:#000;--teal-dk:#003D99;--signal-dk:#8A2A00}
html.a11y-contrast .hero::before{background:rgba(0,0,0,.85)}
html.a11y-links a{text-decoration:underline!important;outline:1px dashed currentColor}
html.a11y-gray body{filter:grayscale(1)}
html.a11y-still *,html.a11y-still *::before,html.a11y-still *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
html.a11y-spacing body{letter-spacing:.06em;word-spacing:.12em;line-height:2}
html.a11y-still .reveal{opacity:1!important;transform:none!important}

/* Reveal animations */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}

/* 404 */
.nf{min-height:100svh;display:grid;place-items:center;text-align:center;background:var(--ink);color:var(--on-dark);padding:120px 20px}
.nf .code{font-size:clamp(7rem,22vw,16rem);font-weight:900;line-height:.9;color:var(--signal)}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav,.header-cta .btn-ghost{display:none}
  .menu-toggle{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;border:1px solid var(--line-dk);background:transparent;color:var(--on-dark);cursor:pointer;margin-inline-start:auto}
  .menu-toggle svg{width:24px}
  .nav.open{display:block;position:fixed;inset:0;z-index:1000;background:var(--ink);padding:96px 24px 120px;overflow-y:auto;margin:0}
  .nav.open>ul{flex-direction:column;gap:4px}
  .nav.open a,.nav.open .dd-btn{font-size:1.25rem;padding:14px 12px;width:100%;justify-content:space-between}
  .nav.open .sub{position:static;opacity:1;visibility:visible;transform:none;display:none;background:transparent;border:0;box-shadow:none;padding:0 14px 8px}
  .nav.open li.open>.sub{display:block}
  .nav.open li.open>.dd-btn svg{transform:rotate(180deg)}
  .nav.open .sub a{font-size:1.05rem}
  body.menu-open{overflow:hidden}
  body.menu-open .site-header{backdrop-filter:none;-webkit-backdrop-filter:none}
  .brand,.menu-toggle{position:relative;z-index:1001}
  body.menu-open .site-header{z-index:1001;background:var(--ink)}
  .content-grid{grid-template-columns:1fr}
  .aside{position:static}
  .foot-grid{grid-template-columns:1fr 1fr}
  .depth-gauge{display:none}
}
@media (max-width:820px){
  .split,.calc,.compare{grid-template-columns:1fr}
  .split.rev>:first-child{order:0}
  .media-frame{aspect-ratio:4/3}
  .header-cta .btn{display:none}
  .site-header .bar{height:68px}
  .brand svg,.brand img{width:38px;height:38px}
  .brand-name{font-size:1.2rem}
  .hero-inner{padding:120px 0 56px}
  .mobile-bar{display:grid;grid-template-columns:1fr 1fr;position:fixed;inset-inline:0;bottom:0;z-index:850;background:var(--ink);border-top:1px solid var(--line-dk);padding:8px;gap:8px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}
  .mobile-bar .btn{padding:12px}
  .fab-end .wa,.fab-end .ph{display:none}
  .fab{bottom:86px}
  .a11y-panel{bottom:156px}
  .site-footer{padding-bottom:72px}
  .bar-row{grid-template-columns:1fr auto}
  .bar-row .track{grid-column:1/-1;grid-row:2}
  .form .row2,.calc .row2{grid-template-columns:1fr}
  .cta-band .pile{display:none}
}
@media (max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .hero-actions .btn{flex:1 1 100%}
  .rail{grid-auto-columns:82%}
  .soil-layer{grid-template-columns:70px 1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media print{.site-header,.fab,.mobile-bar,.cta-band,.a11y-panel,.depth-gauge{display:none!important}.hero{min-height:auto;color:#000;background:none}.hero::before,.hero-media{display:none}}