/* =========================================================
   Vitra Industries — site stylesheet
   Layout concept: dark steel hero with a live 3D tube bundle,
   then alternating light/dark bands. Red is the single accent,
   derived from the logo (#CC2127); everything else is cool steel.
   ========================================================= */
:root{
  --red:#CC2127;
  --red-deep:#A3181D;
  --red-soft:#FBE9EA;
  --ink:#15171B;          /* near-black, cool */
  --steel:#2A2E35;        /* dark surfaces */
  --steel-2:#3A3F48;
  --graphite:#6B717C;     /* muted text */
  --line:#E1E4E9;
  --line-dark:#3C424B;
  --paper:#FFFFFF;
  --paper-2:#F3F4F6;      /* cool off-white */
  --fg:var(--ink);
  --fg-on-dark:#F4F5F7;
  --muted-on-dark:#A8AEB8;

  --font-display:"Barlow Condensed","Arial Narrow",Impact,sans-serif;
  --font-body:"Barlow","Helvetica Neue",Arial,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --max:1240px;
  --gutter:clamp(16px,4vw,48px);
  --radius:4px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;background:var(--paper);color:var(--fg);font-family:var(--font-body);font-size:17px;line-height:1.55;overflow-x:clip}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-weight:600;line-height:1.02;letter-spacing:-.005em;text-wrap:balance}
p{margin:0}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
::selection{background:var(--red);color:#fff}

/* cross-document page transitions (progressive) */
@view-transition{navigation:auto}
@media (prefers-reduced-motion:no-preference){
  ::view-transition-old(root){animation:vt-out .28s var(--ease) both}
  ::view-transition-new(root){animation:vt-in .42s var(--ease) both}
}
@keyframes vt-out{to{opacity:0;transform:translateY(-8px)}}
@keyframes vt-in{from{opacity:0;transform:translateY(12px)}}

/* ---------- utilities ---------- */
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.eyebrow{font-family:var(--font-display);font-weight:600;font-size:.82rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red);display:inline-flex;align-items:center;gap:.6em}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
.dark .eyebrow{color:#FF6B6F}
.h-xl{font-size:clamp(2.6rem,6.2vw,5.4rem)}
.h-l{font-size:clamp(2.1rem,4.4vw,3.6rem)}
.h-m{font-size:clamp(1.5rem,2.6vw,2.1rem)}
.lede{font-size:clamp(1.05rem,1.4vw,1.25rem);line-height:1.5;color:var(--graphite);max-width:60ch}
.dark .lede{color:var(--muted-on-dark)}
.mono{font-family:var(--font-mono);font-size:.86rem;letter-spacing:.01em}
.num{font-variant-numeric:tabular-nums}
.section{padding-block:clamp(64px,9vw,120px)}
.section-tight{padding-block:clamp(40px,6vw,72px)}
.dark{background:var(--ink);color:var(--fg-on-dark)}
.band{background:var(--paper-2)}
.grid{display:grid;gap:clamp(20px,3vw,40px)}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:900px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.stack{display:grid;gap:14px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.6em;padding:.85em 1.4em;font-family:var(--font-display);font-weight:600;font-size:1.02rem;letter-spacing:.06em;text-transform:uppercase;border:1.5px solid transparent;border-radius:var(--radius);cursor:pointer;transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s;position:relative;overflow:hidden}
.btn svg{width:1em;height:1em;transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--red);color:#fff;border-color:var(--red)}
.btn-primary:hover{background:var(--red-deep);border-color:var(--red-deep);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.dark .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.dark .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:.6em 1em;font-size:.9rem}
.link-arrow{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-display);font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:.95rem;color:var(--red)}
.link-arrow svg{width:1.1em;height:1.1em;transition:transform .3s var(--ease)}
.link-arrow:hover svg{transform:translateX(5px)}

/* ---------- header ---------- */
.topbar{background:var(--ink);color:var(--muted-on-dark);font-size:.82rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;min-height:34px;align-items:center}
.topbar a:hover{color:#fff}
.topbar .mono{font-size:.78rem}
@media (max-width:700px){.topbar .hide-s{display:none}}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
.header.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 30px -18px rgba(21,23,27,.35)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.brand img{height:30px;width:auto}
.nav{display:flex;align-items:center;gap:clamp(14px,2vw,30px)}
.nav a{font-family:var(--font-display);font-weight:600;font-size:1.02rem;letter-spacing:.07em;text-transform:uppercase;position:relative;padding-block:6px}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav .btn{margin-left:8px}
.nav-toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px auto;transition:transform .3s var(--ease),opacity .2s}
@media (max-width:900px){
  .header{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--paper)}
  .nav-toggle{display:block}
  .nav{position:fixed;inset:110px 0 0 0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:28px var(--gutter);gap:18px;transform:translateX(100%);visibility:hidden;transition:transform .4s var(--ease),visibility 0s .4s;overflow:auto;z-index:49}
  .nav.open{transform:none;visibility:visible;transition:transform .4s var(--ease),visibility 0s}
  .nav a{font-size:1.5rem}
  .nav .btn{margin:12px 0 0}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ---------- hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,#ffffff 0%,#eef0f3 100%);color:var(--ink);overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background:url("../img/hero-tubesheet-pins.jpg") center/cover no-repeat;opacity:.1;z-index:-2;filter:grayscale(1) contrast(1.1)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,255,255,.97) 30%,rgba(255,255,255,.6) 70%,rgba(255,255,255,.25));z-index:-1}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;min-height:min(78vh,760px);padding-block:clamp(56px,8vw,96px);gap:32px}
.hero-copy{display:grid;gap:26px;max-width:600px}
.hero h1{font-size:clamp(2.4rem,5.4vw,4.9rem);font-weight:700;line-height:.96;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--red);position:relative}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-3d{position:relative;aspect-ratio:1/1;min-height:300px;max-height:620px}
.hero-3d canvas{position:absolute;inset:0 0 30px 0;width:100%!important;height:calc(100% - 30px)!important;display:block}
.hero-3d .fallback{position:absolute;inset:0 0 30px 0;background:url("../img/tubesheet.jpg") center/cover;border-radius:var(--radius);opacity:.9}
.hero-3d.has-webgl .fallback{display:none}
.hero-caption{position:absolute;left:0;right:0;bottom:0;font-family:var(--font-mono);font-size:.74rem;color:var(--graphite);letter-spacing:.04em;display:flex;flex-wrap:wrap;gap:4px 14px}
.hero-caption b{color:var(--ink);font-weight:500}
@media (max-width:900px){
  .hero .wrap{grid-template-columns:minmax(0,1fr);min-height:0}
  .hero-copy{min-width:0}
  .hero-3d{aspect-ratio:16/10;min-height:0;max-height:380px;width:100%;max-width:100%;order:-1}
}

/* intro load sequence */
@media (prefers-reduced-motion:no-preference){
  .hero-copy > *{opacity:0;transform:translateY(18px);animation:rise .8s var(--ease) forwards}
  .hero-copy > *:nth-child(1){animation-delay:.05s}
  .hero-copy > *:nth-child(2){animation-delay:.15s}
  .hero-copy > *:nth-child(3){animation-delay:.28s}
  .hero-copy > *:nth-child(4){animation-delay:.4s}
  .hero-3d{opacity:0;animation:fade 1.2s var(--ease) .3s forwards}
}
@keyframes rise{to{opacity:1;transform:none}}
@keyframes fade{to{opacity:1}}

/* ---------- stats strip ---------- */
.stats{background:var(--paper);color:var(--ink);border-top:3px solid var(--red);border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0}
.stat{padding:26px 20px 26px 0;border-left:1px solid var(--line);padding-left:20px}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-family:var(--font-display);font-weight:700;font-size:clamp(1.9rem,3vw,2.6rem);line-height:1;letter-spacing:-.01em;color:var(--red)}
.stat small{display:block;margin-top:6px;font-size:.86rem;color:var(--graphite);letter-spacing:.02em}
@media (max-width:700px){.stat{border-left:0;padding-left:0;border-top:1px solid var(--line)}.stat:first-child{border-top:0}}

/* ---------- section heads ---------- */
.sec-head{display:grid;gap:14px;margin-bottom:clamp(32px,5vw,56px);max-width:820px}
.sec-head.split{max-width:none;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:24px}
@media (max-width:700px){.sec-head.split{grid-template-columns:1fr}}

/* ---------- division cards (3D tilt) ---------- */
.div-card{position:relative;display:grid;grid-template-rows:auto 1fr;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transform-style:preserve-3d;transition:transform .5s var(--ease),box-shadow .5s var(--ease);will-change:transform}
.div-card:hover{box-shadow:0 30px 60px -30px rgba(21,23,27,.45)}
.div-card .media{aspect-ratio:16/10;overflow:hidden;background:var(--steel)}
.div-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease);filter:saturate(.85) contrast(1.05)}
.div-card:hover .media img{transform:scale(1.06)}
.div-card .body{padding:26px 26px 28px;display:grid;gap:14px;align-content:start}
.div-card .body h3{font-size:1.7rem}
.div-card .body p{color:var(--graphite)}
.div-card .tag{position:absolute;top:16px;left:16px;background:var(--red);color:#fff;font-family:var(--font-display);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.74rem;padding:6px 10px;border-radius:2px;transform:translateZ(30px)}
.div-card ul{margin:0;padding:0;list-style:none;display:grid;gap:6px;font-size:.95rem;color:var(--steel-2)}
.div-card li{display:flex;gap:10px;align-items:baseline}
.div-card li::before{content:"";flex:none;width:8px;height:8px;border:1.5px solid var(--red);transform:translateY(-1px)}

/* ---------- spec table ---------- */
.spec{width:100%;border-collapse:collapse;font-size:.95rem}
.spec th,.spec td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.spec th{font-family:var(--font-display);font-weight:600;letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;color:var(--graphite);background:var(--paper-2)}
.spec td:first-child{font-family:var(--font-display);font-weight:600;font-size:1.05rem;letter-spacing:.02em;white-space:nowrap}
.spec td .mono{display:block}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
.dark .table-wrap{border-color:var(--line-dark);background:transparent}
.dark .spec th{background:var(--steel);color:var(--muted-on-dark)}
.dark .spec th,.dark .spec td{border-color:var(--line-dark)}
.grade-list{display:flex;flex-wrap:wrap;gap:8px}
.grade-list span{font-family:var(--font-mono);font-size:.82rem;padding:6px 10px;border:1px solid var(--line);border-radius:2px;background:var(--paper)}
.dark .grade-list span{border-color:var(--line-dark);background:rgba(255,255,255,.04)}
.grade-list span.hi{border-color:var(--red);color:var(--red)}
.dark .grade-list span.hi{color:#FF8A8D}

/* ---------- machine register ---------- */
.machines{display:grid;gap:0;border-top:1px solid var(--line);background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding-inline:clamp(12px,2vw,24px)}
.machine{display:grid;grid-template-columns:56px minmax(0,1.3fr) minmax(0,1fr) minmax(0,1.3fr);gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:start;transition:background .3s}
.machine:last-child{border-bottom:0}
.machine:hover{background:var(--paper-2)}
.machine .idx{font-family:var(--font-mono);color:var(--red);font-size:.8rem;padding-top:6px}
.machine h4{font-size:1.3rem;font-weight:600}
.machine h4 small{display:block;font-family:var(--font-body);font-weight:400;font-size:.9rem;color:var(--graphite);margin-top:4px;letter-spacing:0}
.machine .cap{font-family:var(--font-mono);font-size:.82rem;color:var(--ink);line-height:1.6}
.machine .use{font-size:.95rem;color:var(--graphite)}
.machine .lbl{display:none;font-family:var(--font-display);text-transform:uppercase;letter-spacing:.12em;font-size:.7rem;color:var(--graphite);margin-bottom:4px}
@media (max-width:860px){
  .machine{grid-template-columns:40px 1fr;gap:10px 14px}
  .machine > div,.machine h4{grid-column:2}
  .machine .idx{grid-row:1}
  .machine .lbl{display:block}
}

/* ---------- gallery / capability tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px}
.tiles-5{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
@media (max-width:420px){.tiles,.tiles-5{grid-template-columns:1fr}}
.tile{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);background:var(--paper-2);isolation:isolate;border:1px solid var(--line)}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease),filter .6s;filter:saturate(.8)}
.tile:hover img{transform:scale(1.07);filter:saturate(1)}
.tile figcaption{position:absolute;inset:auto 0 0 0;padding:14px 16px;background:linear-gradient(to top,rgba(21,23,27,.9),rgba(21,23,27,0));color:#fff;font-family:var(--font-display);font-weight:600;letter-spacing:.06em;font-size:1.05rem;text-transform:uppercase}
.tile figcaption small{display:block;font-family:var(--font-mono);font-weight:400;text-transform:none;letter-spacing:0;font-size:.74rem;color:var(--muted-on-dark);margin-top:2px}

/* ---------- industries marquee ---------- */
.marquee{overflow:hidden;border-block:1px solid var(--line);padding-block:18px;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:48px;width:max-content;animation:marquee 40s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{font-family:var(--font-display);font-weight:600;font-size:1.5rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-2);display:flex;align-items:center;gap:48px;white-space:nowrap}
.marquee-track span::after{content:"";width:8px;height:8px;background:var(--red);transform:rotate(45deg)}
@keyframes marquee{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none;flex-wrap:wrap;width:auto}}

/* industry grid */
.ind{display:grid;gap:10px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);transition:transform .4s var(--ease),border-color .3s,box-shadow .4s}
.ind:hover{transform:translateY(-4px);border-color:var(--red);box-shadow:0 20px 40px -28px rgba(204,33,39,.5)}
.ind h3{font-size:1.35rem}
.ind p{font-size:.93rem;color:var(--graphite)}
.ind .chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-family:var(--font-mono);font-size:.7rem;padding:3px 8px;border-radius:2px;background:var(--paper-2);color:var(--steel-2);letter-spacing:.02em}
.chip.ss{background:var(--red-soft);color:var(--red-deep)}

/* ---------- why / value points ---------- */
.points{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}
.point{padding:28px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;gap:12px;align-content:start;transition:background .3s}
.point:hover{background:var(--paper-2)}
.point .ico{width:40px;height:40px;color:var(--red)}
.point .ico svg{width:100%;height:100%}
.point h3{font-size:1.3rem}
.point p{font-size:.95rem;color:var(--graphite)}

/* ---------- process (real sequence) ---------- */
.process{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;counter-reset:step}
.step{position:relative;padding-top:18px;border-top:2px solid var(--line);display:grid;gap:8px}
.dark .step{border-top-color:var(--line-dark)}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--font-mono);color:var(--red);font-size:.8rem}
.step h3{font-size:1.3rem}
.step p{font-size:.93rem;color:var(--graphite)}
.dark .step p{color:var(--muted-on-dark)}

/* plain facts (no sequence numbering) */
.fact{padding-top:18px;border-top:2px solid var(--red);display:grid;gap:8px}
.fact h3{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:700}
.fact p{font-size:.93rem;color:var(--graphite)}
.dark .fact p{color:var(--muted-on-dark)}

/* ---------- CTA band ---------- */
.cta{position:relative;overflow:hidden;background:var(--red);color:#fff}
.cta::before{content:"";position:absolute;inset:-40% -10%;background:radial-gradient(60% 60% at 80% 50%,rgba(255,255,255,.18),transparent 60%);pointer-events:none}
.cta .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:28px;padding-block:clamp(44px,6vw,72px)}
.cta h2{font-size:clamp(2rem,4vw,3.2rem)}
.cta p{opacity:.92;max-width:52ch;margin-top:10px}
.cta .btn-ghost{color:#fff;border-color:#fff}
.cta .btn-ghost:hover{background:#fff;color:var(--red)}
@media (max-width:760px){.cta .wrap{grid-template-columns:1fr}}

/* ---------- page header (inner pages) ---------- */
.page-head{position:relative;background:var(--paper-2);color:var(--ink);overflow:hidden;border-bottom:1px solid var(--line)}
.page-head .wrap{padding-block:clamp(56px,8vw,110px);display:grid;gap:18px;max-width:var(--max)}
.page-head h1{font-size:clamp(2.4rem,4.6vw,4rem);font-weight:700;line-height:.98;max-width:16ch}
.page-head .bg{position:absolute;inset:0;z-index:0;opacity:.16;filter:grayscale(1)}
.page-head .bg img{width:100%;height:100%;object-fit:cover}
.page-head .wrap{position:relative;z-index:1}
.page-head::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(243,244,246,.98) 40%,rgba(243,244,246,.55));z-index:0}
.crumbs{display:flex;gap:10px;font-family:var(--font-mono);font-size:.76rem;color:var(--graphite)}
.crumbs a:hover{color:var(--red)}

/* ---------- two-col feature ---------- */
.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,72px);align-items:center}
.feature .media{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--steel);aspect-ratio:4/3}
.feature .media img{width:100%;height:100%;object-fit:cover}
.feature .media .badge{position:absolute;left:18px;bottom:18px;background:var(--ink);color:#fff;padding:10px 14px;font-family:var(--font-mono);font-size:.76rem;border-left:3px solid var(--red)}
.feature .copy{display:grid;gap:18px}
.feature .copy p{color:var(--graphite)}
.dark .feature .copy p{color:var(--muted-on-dark)}
@media (max-width:860px){.feature{grid-template-columns:1fr}}

/* values */
.values{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.value{padding:26px;border-left:3px solid var(--red);background:var(--paper-2);display:grid;gap:10px}
.value h3{font-size:1.3rem}
.value p{font-size:.95rem;color:var(--graphite)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(28px,5vw,72px)}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.form{display:grid;gap:16px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:560px){.form .row{grid-template-columns:1fr}}
.field{display:grid;gap:6px}
.field label{font-family:var(--font-display);font-weight:600;letter-spacing:.1em;text-transform:uppercase;font-size:.78rem;color:var(--graphite)}
.field input,.field select,.field textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);color:var(--ink);transition:border-color .2s,box-shadow .2s;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px var(--red-soft)}
.field textarea{min-height:140px;resize:vertical}
.form .note{font-size:.86rem;color:var(--graphite)}
.info{display:grid;gap:22px;align-content:start}
.info-item{display:grid;grid-template-columns:40px 1fr;gap:14px;align-items:start}
.info-item .ico{width:40px;height:40px;color:var(--red);border:1px solid var(--line);border-radius:var(--radius);display:grid;place-items:center}
.info-item .ico svg{width:20px;height:20px}
.info-item h3{font-size:1.15rem;margin-bottom:4px}
.info-item p,.info-item a{color:var(--steel-2)}
.info-item a{text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.info-item a:hover{color:var(--red);text-decoration-color:var(--red)}
.copy-btn{font-family:var(--font-mono);font-size:.72rem;border:1px solid var(--line);background:var(--paper);padding:3px 8px;border-radius:2px;cursor:pointer;margin-left:8px;color:var(--graphite)}
.copy-btn:hover{border-color:var(--red);color:var(--red)}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:var(--radius);font-size:.9rem;opacity:0;transition:opacity .3s,transform .3s var(--ease);pointer-events:none;z-index:100;border-left:3px solid var(--red)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:var(--muted-on-dark);font-size:.93rem}
.footer .top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-block:clamp(48px,6vw,72px);border-bottom:1px solid var(--line-dark)}
@media (max-width:900px){.footer .top{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer .top{grid-template-columns:1fr}}
.footer h4{font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin-bottom:16px;font-weight:600}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer a:hover{color:#fff}
.footer .brand img{height:26px;margin-bottom:16px}
.footer .bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-block:22px;font-size:.8rem;font-family:var(--font-mono)}
.footer .bottom a{color:#fff;text-decoration:underline;text-decoration-color:var(--line-dark);text-underline-offset:3px}
.footer .bottom a:hover{color:#FF6B6F;text-decoration-color:#FF6B6F}

/* ---------- reveal on scroll ---------- */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
.js .reveal[data-delay="1"]{transition-delay:.1s}
.js .reveal[data-delay="2"]{transition-delay:.2s}
.js .reveal[data-delay="3"]{transition-delay:.3s}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .hero-copy > *,.hero-3d{animation:none!important;opacity:1!important;transform:none!important}
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
}