/* =========================================================================
   CHIPORA design system (spec revision 7)
   A dark mine-site look: full-bleed video hero, a 12-col grid on a 1240px
   measure, sections divided by hairline seams. Inter carries everything,
   semibold and tightly tracked for headlines, light for ledes. Mono appears
   only where the content is data.
   ========================================================================= */
:root{
  color-scheme: dark;
  --basalt:#0B0E0F;      /* page ground */
  --shale:#131819;       /* raised panels */
  --slate:#1B2224;       /* hover, active nav, inputs */
  --seam:#273133;        /* hairlines */
  --quartz:#EDF0EF;      /* primary text */
  --grit:#C2CAC8;        /* secondary text, kept close to white */
  --lede:#D4DAD8;        /* ledes and section intros */
  --hero-text:#DDE2E0;   /* lede and labels over the video */
  --verdigris:#8FCBB6;   /* the one accent: oxidised copper */
  --verdigris-ink:#0B1714;
  --warn:#E2B56A;
  --rec:#E0634F;
  /* mineral-group tints, element tiles only */
  --g-precious:#D9C59A;
  --g-base:#D49A74;
  --g-battery:#9DB8E0;
  --g-industrial:#B4B9BC;

  --f-sans:"Inter","Helvetica Neue",Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;

  --step--1:clamp(.76rem,.74rem + .1vw,.82rem);
  --step-0:clamp(1rem,.97rem + .15vw,1.08rem);
  --step-1:clamp(1.15rem,1.06rem + .4vw,1.36rem);
  --step-2:clamp(1.45rem,1.25rem + .85vw,1.95rem);
  --step-3:clamp(1.9rem,1.45rem + 1.9vw,3rem);
  --step-4:clamp(2.1rem,1.5rem + 3.1vw,4.6rem);

  --measure:1240px;
  --gutter:clamp(16px,4vw,40px);
  --radius:4px;
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--basalt);color:var(--quartz);font-family:var(--f-sans);font-optical-sizing:auto;font-size:var(--step-0);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img,video{display:block;max-width:100%}
h1,h2,h3,h4{font-weight:600;letter-spacing:-.022em;line-height:1.08;text-wrap:balance;margin:0}
p{margin:0}
.nw{white-space:nowrap}
/* the no-break wrapper must never pick up "x span" styles from its parent */
html body span.nw{display:inline;color:inherit;font:inherit;letter-spacing:inherit;margin:0;padding:0;border:0;background:none;max-width:none;user-select:auto}
.wrap{max-width:var(--measure);margin-inline:auto;padding-inline:var(--gutter)}
.lede{color:var(--lede);font-weight:300;font-size:var(--step-1);line-height:1.55;max-width:56ch}
:focus-visible{outline:2px solid var(--verdigris);outline-offset:3px}
.skip{position:absolute;left:-9999px;top:0;z-index:50;background:var(--verdigris);color:var(--verdigris-ink);padding:.6rem 1rem;font-weight:600}
.skip:focus{left:var(--gutter);top:.6rem}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- labels: every small uppercase caption ---------- */
.eyebrow,.link,.problem .who,.door .tag,.routes .col h3,.field > label,.roles legend,.foot h4,.panel-head,.direct small,.plan .tier,.step .lbl,.group-label b,.min-entry .meta dt,.faq summary .q-lbl,.principle .lbl{
  font-family:var(--f-sans);font-weight:600;font-size:var(--step--1);
  letter-spacing:.12em;text-transform:uppercase;line-height:1.3}
.eyebrow{color:var(--verdigris)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.65rem;padding:.85rem 1.2rem;border-radius:var(--radius);font:600 .95rem/1 var(--f-sans);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.arr{width:15px;height:15px;flex:none;transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}
.btn-primary{background:var(--verdigris);color:var(--verdigris-ink)}
.btn-primary:hover{background:var(--quartz)}
.btn-ghost{border-color:rgba(237,240,239,.35);color:var(--quartz);background:rgba(11,14,15,.25);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:var(--quartz)}
.btn[disabled]{opacity:.6;cursor:progress}
.link{text-decoration:none;border-bottom:1px solid rgba(237,240,239,.3);padding-bottom:3px}
.link:hover{border-color:var(--verdigris);color:var(--verdigris)}
.ctas{display:flex;flex-wrap:wrap;gap:.8rem 1.1rem;align-items:center}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:20;padding-top:env(safe-area-inset-top,0px);transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled,.nav.open,.nav.solid{background:rgba(11,14,15,.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-color:var(--seam)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem}
.logo{font:700 1.2rem/1 var(--f-sans);letter-spacing:.12em;text-decoration:none;color:var(--quartz)}
.logo span{color:var(--verdigris)}
.nav ul{display:flex;gap:1.8rem;list-style:none;margin:0;padding:0}
.nav ul a{text-decoration:none;font-size:.93rem;font-weight:500;color:var(--quartz);opacity:.85}
.nav ul a:hover,.nav ul a[aria-current=page]{opacity:1;color:var(--verdigris)}
.nav-cta{display:flex;gap:.6rem;align-items:center}
.nav-cta .btn{padding:.6rem .95rem;font-size:.88rem}
.menu-btn{display:none;background:none;border:1px solid var(--seam);color:var(--quartz);border-radius:var(--radius);padding:.5rem .75rem;font:600 .85rem var(--f-sans);cursor:pointer}
@media (max-width:1100px){.nav ul{gap:1.2rem}}
@media (max-width:920px){
  .nav ul,.nav-cta .btn-ghost{display:none}
  .menu-btn{display:inline-block}
  .nav.open ul{display:flex;flex-direction:column;position:absolute;top:calc(68px + env(safe-area-inset-top,0px));left:0;right:0;background:var(--basalt);padding:1.2rem var(--gutter) 1.6rem;border-bottom:1px solid var(--seam);gap:1.1rem}
  .nav.open ul a{font-size:1.05rem}
}
@media (max-width:420px){.nav-cta .btn-primary{display:none}}

/* ---------- hero (video) ---------- */
.hero{position:relative;min-height:clamp(600px,88vh,900px);display:flex;align-items:flex-end;overflow:hidden;isolation:isolate;background:#1d1a17}
.hero-media{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:
  linear-gradient(180deg,rgba(11,14,15,.65) 0%,rgba(11,14,15,0) 22%,rgba(11,14,15,0) 42%,rgba(11,14,15,.92) 86%,var(--basalt) 100%),
  radial-gradient(120% 90% at 30% 60%,transparent 40%,rgba(11,14,15,.55) 100%)}
@media (max-width:700px){.hero::after{background:linear-gradient(180deg,rgba(11,14,15,.7) 0%,rgba(11,14,15,.45) 30%,rgba(11,14,15,.86) 58%,var(--basalt) 100%)}}
.hero .wrap{width:100%;padding-block:9rem 3.5rem;display:grid;gap:2rem}
.hero .eyebrow{color:var(--hero-text)}
.hero h1{font-size:var(--step-4);max-width:22ch;line-height:1.02;letter-spacing:-.038em}
.hero h1 .hl{color:var(--verdigris)}
.hero .lede{color:var(--hero-text);max-width:58ch}
.hero-meta{display:flex;flex-wrap:wrap;gap:.5rem 2.4rem;font-size:.9rem;color:var(--grit);border-top:1px solid rgba(237,240,239,.14);padding-top:1.2rem}
.hero-meta b{color:var(--quartz);font-weight:600}
/* inner-page hero: shorter, same overlay */
.hero.sub{min-height:clamp(460px,60vh,620px)}
.hero.sub h1{max-width:20ch}
.hero.plain{background:radial-gradient(90% 120% at 80% 0%,#18201f 0%,var(--basalt) 70%)}
.hero.plain::after{display:none}

/* ---------- sections ---------- */
section{padding-block:clamp(4.5rem,9vw,8rem);border-top:1px solid var(--seam)}
section.first{border-top:0}
.sec-head{display:grid;grid-template-columns:repeat(12,1fr);gap:1.5rem 2rem;margin-bottom:clamp(2.5rem,5vw,4rem);align-items:end}
.sec-head > div{grid-column:span 7;display:grid;gap:1.1rem;min-width:0}
.sec-head > p{grid-column:span 5;color:var(--lede);min-width:0}
.sec-head h2,.split h2{font-size:var(--step-3);letter-spacing:-.03em}
@media (max-width:820px){.sec-head{grid-template-columns:1fr}.sec-head > div,.sec-head > p{grid-column:1/-1}}
.more{margin-top:clamp(2rem,4vw,3rem)}

/* ---------- problem ---------- */
.problem{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.problem article{display:grid;gap:.9rem;align-content:start;padding-top:1.4rem;border-top:1px solid var(--seam)}
.problem .who{color:var(--verdigris)}
.problem h3{font-size:var(--step-2)}
.problem p{color:var(--grit)}
.problem.four{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.problem.four{grid-template-columns:1fr 1fr}}
@media (max-width:820px){.problem{grid-template-columns:1fr}}
@media (max-width:520px){.problem.four{grid-template-columns:1fr}}

/* ---------- three doors ---------- */
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--seam);border:1px solid var(--seam)}
.door{background:var(--basalt);padding:2rem 1.8rem 1.8rem;display:grid;grid-template-rows:auto auto 1fr auto;gap:1.1rem;min-height:440px;transition:background .25s}
.door:hover{background:var(--shale)}
.door .tag{color:var(--grit)}
.door h3{font-size:var(--step-2)}
.door .btn{justify-self:start}
@media (max-width:900px){.doors{grid-template-columns:1fr}.door{min-height:0}}
/* diamond bullets */
.dia{list-style:none;margin:0;padding:0;display:grid;gap:.6rem;align-content:start;color:var(--grit);font-size:.96rem}
.dia li{display:grid;grid-template-columns:14px 1fr;gap:.6rem}
.dia li::before{content:"";width:6px;height:6px;margin-top:.62em;background:var(--verdigris);transform:rotate(45deg)}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.step{display:grid;gap:.8rem;align-content:start}
.step .lbl{color:var(--verdigris)}
.step h3{font-size:var(--step-2)}
.step p{color:var(--grit);font-size:.96rem;max-width:30ch}
@media (max-width:900px){.process{grid-template-columns:1fr 1fr;row-gap:2.6rem}}
@media (max-width:520px){.process{grid-template-columns:1fr}}

/* ---------- element tiles ---------- */
.groups{display:grid;gap:2.2rem}
.group{display:grid;grid-template-columns:200px 1fr;gap:1.5rem;align-items:start}
.group-label{display:grid;gap:.35rem;padding-top:.3rem}
.group-label b{color:var(--quartz)}
.group-label span{font-size:.86rem;line-height:1.4;color:var(--grit)}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:10px}
.el{--c:var(--g-industrial);position:relative;aspect-ratio:1/1.05;max-width:100%;border:1px solid color-mix(in srgb,var(--c) 38%,transparent);background:linear-gradient(160deg,color-mix(in srgb,var(--c) 12%,var(--shale)) 0%,var(--shale) 70%);border-radius:2px;padding:.7rem .75rem;display:grid;grid-template-rows:auto 1fr auto auto;transition:transform .2s,border-color .2s;text-decoration:none;color:var(--quartz)}
a.el:hover,.el:hover{transform:translateY(-3px);border-color:var(--c)}
.el .z{display:flex;justify-content:space-between;font:400 .7rem var(--f-mono);color:var(--grit);font-variant-numeric:tabular-nums}
.el .sym{font:600 2.3rem/1 var(--f-sans);color:var(--c);align-self:center;letter-spacing:-.03em}
.el .nm{font-size:.88rem;font-weight:600}
.el .fm{font:400 .66rem/1.35 var(--f-mono);color:var(--grit);margin-top:.2rem;min-height:2.7em}
.el.precious{--c:var(--g-precious)}.el.base{--c:var(--g-base)}.el.battery{--c:var(--g-battery)}
.el.any{--c:var(--verdigris);border-style:dashed;background:transparent}
.el.any .sym{font-size:2rem}
.tiles.compact{grid-template-columns:repeat(auto-fill,minmax(104px,1fr))}
.tiles.compact .el{aspect-ratio:auto;min-height:118px}
.tiles.compact .el .sym{font-size:1.9rem;padding-block:.35rem}
@media (max-width:820px){.group{grid-template-columns:1fr;gap:.8rem}}
@media (max-width:420px){.tiles,.tiles.compact{grid-template-columns:repeat(2,1fr)}}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:5fr 6fr;gap:clamp(2rem,5vw,5rem);align-items:start}
.split.rev{grid-template-columns:6fr 5fr}
.split.even{grid-template-columns:1fr 1fr}
.split > *{min-width:0}
.split .copy{display:grid;gap:1.5rem;align-content:start}
.benefits{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem 2rem;margin-top:.6rem}
.benefits div{display:grid;gap:.35rem;border-top:1px solid var(--seam);padding-top:1rem;align-content:start}
.benefits b{font-weight:600}
.benefits span{color:var(--grit);font-size:.94rem}
.benefits.four{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.split,.split.rev,.split.even{grid-template-columns:1fr}.split.rev > .panel{order:2}.benefits.four{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.benefits,.benefits.four{grid-template-columns:1fr}}

/* ---------- panel and pill ---------- */
.panel{background:var(--shale);border:1px solid var(--seam);border-radius:var(--radius);overflow:hidden}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 1.1rem;border-bottom:1px solid var(--seam);color:var(--grit)}
.panel-body{padding:1.3rem 1.2rem;display:grid;gap:1rem}
.pill{font:500 .68rem var(--f-mono);letter-spacing:.04em;padding:.25rem .5rem;border-radius:20px;border:1px solid var(--seam);color:var(--grit);white-space:nowrap;text-transform:none}
.pill.ok{color:var(--verdigris);border-color:color-mix(in srgb,var(--verdigris) 45%,transparent)}
.pill.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 45%,transparent)}

/* ---------- onboarding path ---------- */
.timeline{list-style:none;margin:0;padding:1.4rem 1.2rem;display:grid}
.timeline li{display:grid;grid-template-columns:34px 1fr;gap:1rem;padding-bottom:1.4rem;position:relative}
.timeline li:last-child{padding-bottom:.2rem}
.timeline li::before{content:"";position:absolute;left:16.5px;top:1.55rem;bottom:-.35rem;width:1px;background:var(--seam)}
.timeline li:last-child::before{display:none}
.timeline .dot{width:11px;height:11px;margin-top:.62rem;justify-self:center;border-radius:50%;background:var(--verdigris);box-shadow:0 0 0 4px var(--shale)}
.timeline b{display:block;font-weight:600;margin-bottom:.2rem;padding-top:.3rem}
.timeline span{color:var(--grit);font-size:.94rem}

/* ---------- listing card ---------- */
.listing{padding:1.2rem 1.1rem;display:grid;gap:1rem}
.listing h4{font-size:1.25rem}
.kv{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--seam);border:1px solid var(--seam);margin:0}
.kv div{background:var(--shale);padding:.75rem .8rem;display:grid;gap:.25rem;min-width:0}
.kv dt{font:400 .68rem var(--f-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--grit)}
.kv dd{margin:0;font-variant-numeric:tabular-nums;font-weight:600}
.assay{width:100%;border-collapse:collapse;font:400 .82rem var(--f-mono);font-variant-numeric:tabular-nums}
.assay th{font-weight:400;color:var(--grit);text-align:left;padding:.5rem .4rem;border-bottom:1px solid var(--seam);font-size:.7rem;letter-spacing:.04em;text-transform:uppercase}
.assay td{padding:.55rem .4rem;border-bottom:1px solid var(--seam)}
.assay tr:last-child td{border-bottom:0}
.bar{height:5px;background:var(--seam);border-radius:3px;overflow:hidden;min-width:60px}
.bar i{display:block;height:100%;background:var(--verdigris)}
.bar.warn i{background:var(--warn)}
.example{font:400 .68rem var(--f-mono);color:var(--grit);letter-spacing:.04em;text-transform:uppercase;padding:.7rem 1.1rem;border-top:1px solid var(--seam)}
.scroll-x{overflow-x:auto}
@media (max-width:480px){.kv{grid-template-columns:1fr 1fr}}

/* ---------- trade desk preview ---------- */
.desk{background:linear-gradient(180deg,var(--basalt),var(--shale) 60%,var(--basalt))}
.app{display:grid;grid-template-columns:200px 1fr 300px;min-height:440px}
.app aside{border-right:1px solid var(--seam);padding:1rem;display:grid;gap:.3rem;align-content:start;font-size:.9rem}
.app aside span{color:var(--grit);padding:.5rem .6rem;border-radius:3px}
.app aside span.on{background:var(--slate);color:var(--quartz)}
.app .main{padding:1rem 1.1rem;min-width:0;display:grid;gap:1rem;align-content:start}
.app .filters{display:flex;flex-wrap:wrap;gap:.4rem}
.app .filters span{font:400 .72rem var(--f-mono);border:1px solid var(--seam);padding:.3rem .55rem;border-radius:3px;color:var(--grit)}
.app .filters span.on{border-color:var(--verdigris);color:var(--verdigris)}
.book{width:100%;border-collapse:collapse;font-size:.86rem;min-width:560px}
.book th{font:400 .68rem var(--f-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--grit);text-align:left;padding:.5rem;border-bottom:1px solid var(--seam)}
.book td{padding:.65rem .5rem;border-bottom:1px solid var(--seam);font-variant-numeric:tabular-nums;white-space:nowrap}
.book td.m{font-family:var(--f-mono);font-size:.8rem}
.score{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--f-mono);font-size:.8rem}
.score i{width:8px;height:8px;border-radius:50%;background:var(--verdigris)}
.score.mid i{background:var(--warn)}
.ai{border-left:1px solid var(--seam);padding:1rem;display:grid;gap:.8rem;align-content:start;background:var(--basalt)}
.ai .eyebrow{font-size:.7rem}
.ai .msg{font-size:.88rem;padding:.7rem .8rem;border-radius:3px;line-height:1.5}
.ai .q{background:var(--slate);justify-self:end;max-width:92%}
.ai .a{border:1px solid var(--seam);color:var(--hero-text)}
.ai .a b{color:var(--verdigris);font-weight:600}
.ai .input{border:1px solid var(--seam);border-radius:3px;padding:.6rem .7rem;font-size:.84rem;color:var(--grit)}
@media (max-width:1060px){.app{grid-template-columns:1fr}.app aside{display:none}.ai{border-left:0;border-top:1px solid var(--seam)}}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-top:3rem}
.features div{display:grid;gap:.4rem;align-content:start}
.features b{font-weight:600}
.features span{color:var(--grit);font-size:.94rem}
@media (max-width:900px){.features{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.features{grid-template-columns:1fr}}

/* feature rows (trade desk page): alternate visual and copy */
.frows{display:grid;gap:clamp(3rem,7vw,6rem)}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.frow > *{min-width:0}
.frow:nth-child(even) .fvis{order:2}
.frow .copy{display:grid;gap:1rem;align-content:start}
.frow h3{font-size:var(--step-2)}
.frow .copy p{color:var(--grit)}
.fvis .panel-body{font-size:.9rem}
.mini{display:grid;gap:.5rem}
.mini div{display:flex;justify-content:space-between;gap:1rem;padding:.55rem .1rem;border-bottom:1px solid var(--seam);font-size:.88rem}
.mini div:last-child{border-bottom:0}
.mini .m{font-family:var(--f-mono);font-size:.8rem;color:var(--grit)}
@media (max-width:900px){.frow{grid-template-columns:1fr}.frow:nth-child(even) .fvis{order:0}}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:3.5rem}
.plan{border:1px solid var(--seam);border-radius:var(--radius);padding:1.6rem;display:grid;gap:1rem;grid-template-rows:auto auto auto 1fr auto;background:var(--basalt)}
.plan.feat{border-color:var(--verdigris);background:var(--shale)}
.plan .tier{color:var(--verdigris)}
.plan h3{font-size:1.35rem}
.plan .price{font:600 var(--step-2)/1 var(--f-sans);letter-spacing:-.025em}
.plan ul{list-style:none;margin:0;padding:0;display:grid;gap:.5rem;font-size:.93rem;align-content:start}
.plan li{padding-left:1.2rem;position:relative}
.plan li::before{content:"";position:absolute;left:0;top:.58em;width:7px;height:7px;border:1px solid var(--verdigris);transform:rotate(45deg)}
.plan .btn{justify-content:center}
.plan .btn-ghost{background:transparent}
@media (max-width:900px){.plans{grid-template-columns:1fr}}

/* ---------- routes ---------- */
.routes{display:grid;grid-template-columns:1fr auto 1fr;gap:2rem;align-items:center}
.routes .col{display:grid;gap:.2rem}
.routes .col h3{color:var(--grit);margin-bottom:.8rem}
.routes .col div{display:flex;justify-content:space-between;gap:1rem;padding:.8rem 0;border-bottom:1px solid var(--seam);font-size:var(--step-1);font-weight:500}
.routes .col div small{font-size:.82rem;font-weight:400;color:var(--grit);align-self:center;text-align:right}
.hub{width:170px;height:170px;border-radius:50%;border:1px solid var(--verdigris);display:grid;place-items:center;text-align:center;position:relative}
.hub::before,.hub::after{content:"";position:absolute;inset:-14px;border-radius:50%;border:1px dashed var(--seam)}
.hub::after{inset:-30px;opacity:.6}
.hub b{font:700 1rem var(--f-sans);letter-spacing:.12em}
.hub span{display:block;font-size:.76rem;color:var(--grit);margin-top:.35rem;line-height:1.4;max-width:12ch;margin-inline:auto}
@media (max-width:900px){.routes{grid-template-columns:1fr}.hub{margin:1.5rem auto}}

/* ---------- trust grid ---------- */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--seam);border:1px solid var(--seam)}
.trust div{background:var(--basalt);padding:1.6rem 1.4rem;display:grid;gap:.6rem;align-content:start}
.trust b{font-weight:600;font-size:1.08rem}
.trust span{color:var(--grit);font-size:.94rem}
.trust code{font:500 .72rem var(--f-mono);color:var(--verdigris);letter-spacing:.06em}
@media (max-width:900px){.trust{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.trust{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--seam)}
.faq details{border-bottom:1px solid var(--seam)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.2rem 0;font-weight:600;font-size:var(--step-1);letter-spacing:-.015em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:9px;height:9px;flex:none;border-right:1.6px solid var(--verdigris);border-bottom:1.6px solid var(--verdigris);transform:rotate(45deg) translate(-2px,-2px);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(225deg) translate(-2px,-2px)}
.faq .ans{padding:0 0 1.4rem;color:var(--grit);max-width:70ch}

/* ---------- mineral detail entries ---------- */
.min-list{display:grid;gap:0;border-top:1px solid var(--seam)}
.min-entry{display:grid;grid-template-columns:150px 1fr 1fr;gap:clamp(1.5rem,4vw,3rem);padding-block:2rem;border-bottom:1px solid var(--seam);align-items:start}
.min-entry > *{min-width:0}
.min-entry .el{aspect-ratio:auto;min-height:150px}
.min-entry .body{display:grid;gap:.7rem;align-content:start}
.min-entry h3{font-size:var(--step-2)}
.min-entry .body p{color:var(--grit)}
.min-entry .meta{display:grid;gap:1rem;margin:0}
.min-entry .meta div{display:grid;gap:.3rem;border-top:1px solid var(--seam);padding-top:.8rem}
.min-entry .meta dt{color:var(--grit)}
.min-entry .meta dd{margin:0}
.min-group-h{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin:clamp(3rem,6vw,4.5rem) 0 1.2rem}
.min-group-h:first-child{margin-top:0}
.min-group-h h2{font-size:var(--step-2);letter-spacing:-.022em}
.min-group-h span{color:var(--grit);font-size:.92rem}
@media (max-width:900px){.min-entry{grid-template-columns:120px 1fr}.min-entry .meta{grid-column:1/-1}}
@media (max-width:520px){.min-entry{grid-template-columns:1fr}.min-entry .el{max-width:150px}}

/* ---------- about ---------- */
.principles{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--seam);border:1px solid var(--seam)}
.principle{background:var(--basalt);padding:1.6rem 1.4rem;display:grid;gap:.7rem;align-content:start}
.principle .lbl{color:var(--verdigris)}
.principle b{font-size:1.15rem;font-weight:600;letter-spacing:-.015em}
.principle span{color:var(--grit);font-size:.94rem}
@media (max-width:900px){.principles{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.principles{grid-template-columns:1fr}}

/* ---------- contact and forms ---------- */
.contact{display:grid;grid-template-columns:5fr 6fr;gap:clamp(2rem,5vw,5rem)}
.contact > *{min-width:0}
.contact h2,.contact h1{font-size:var(--step-4);letter-spacing:-.038em;line-height:1.02}
.contact .intro{display:grid;gap:1.4rem;align-content:start}
form{display:grid;gap:1rem}
.form-body{display:grid;gap:1rem}
.form-body.hidden{display:none}
.roles{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem;border:0;padding:0;margin:0;min-width:0}
.roles legend{color:var(--grit);margin-bottom:.6rem;padding:0}
.roles input{position:absolute;opacity:0;pointer-events:none}
.roles label{border:1px solid var(--seam);border-radius:3px;padding:.75rem .6rem;text-align:center;font-size:.92rem;font-weight:500;cursor:pointer;transition:border-color .2s,background .2s}
.roles input:checked + label{border-color:var(--verdigris);background:color-mix(in srgb,var(--verdigris) 10%,transparent);color:var(--verdigris)}
.roles input:focus-visible + label{outline:2px solid var(--verdigris);outline-offset:2px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.row[hidden],.field[hidden]{display:none}
.field{display:grid;gap:.4rem;min-width:0;align-content:start}
.field > label{color:var(--grit)}
.field > label .opt{text-transform:none;letter-spacing:0;font-weight:400}
.field input,.field select,.field textarea{background:var(--shale);border:1px solid var(--seam);border-radius:3px;color:var(--quartz);font:400 1rem var(--f-sans);padding:.8rem .85rem;width:100%}
.field input[type=file]{padding:.6rem .7rem;font-size:.9rem;color:var(--grit)}
.field input::placeholder,.field textarea::placeholder{color:#8E9896}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--verdigris)}
.field .err{display:none;font-size:.82rem;color:var(--warn)}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--warn)}
.field.invalid .err{display:block}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.note{font-size:.88rem;color:var(--grit)}
.form-status{display:none;border:1px solid var(--verdigris);color:var(--quartz);padding:1rem 1.1rem;border-radius:3px;font-size:.95rem;gap:.3rem}
.form-status.show{display:grid}
.form-status b{color:var(--verdigris);font-weight:600}
.form-status.fail{border-color:var(--warn)}
.form-status.fail b{color:var(--warn)}
.direct{display:grid;gap:1rem;margin-top:.6rem}
.direct div{border-top:1px solid var(--seam);padding-top:1rem;display:grid;gap:.25rem}
.direct small{color:var(--grit)}
.direct span{user-select:all}
@media (max-width:900px){.contact{grid-template-columns:1fr}}
@media (max-width:560px){.roles{grid-template-columns:1fr 1fr}.row{grid-template-columns:1fr}}

/* ---------- semiconductors cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--seam);border:1px solid var(--seam)}
.cards > div{background:var(--basalt);padding:1.6rem 1.4rem;display:grid;gap:.6rem;align-content:start}
.cards b{font-weight:600;font-size:1.12rem;letter-spacing:-.015em}
.cards span{color:var(--grit);font-size:.94rem}
.cards.two{grid-template-columns:1fr 1fr}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.cards,.cards.two{grid-template-columns:1fr}}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--seam);padding-block:3.5rem 2.5rem;color:var(--grit);font-size:.92rem}
.foot{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:2rem}
.foot h4{color:var(--quartz);margin-bottom:.9rem}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.foot a{text-decoration:none}
.foot a:hover{color:var(--verdigris)}
.foot .blurb{margin-top:1rem;max-width:34ch}
.legal{margin-top:3rem;padding-top:1.4rem;border-top:1px solid var(--seam);display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;font-size:.82rem}
.legal p{max-width:80ch}
@media (max-width:900px){.foot{grid-template-columns:1fr 1fr}.foot > div:first-child{grid-column:1/-1}}

/* ---------- motion: hero copy rises on load, nothing else on scroll ---------- */
@media (prefers-reduced-motion:no-preference){
  .rise{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
  .rise.d1{animation-delay:.12s}.rise.d2{animation-delay:.24s}.rise.d3{animation-delay:.36s}.rise.d4{animation-delay:.48s}
  @keyframes rise{from{transform:translateY(14px);opacity:.001}to{transform:none;opacity:1}}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  a.el:hover,.el:hover{transform:none}
  .btn:hover .arr{transform:none}
}