/* CPN Wälzlager: main stylesheet (no build step) */
:root{
  --red:#CF2E2E; --red-dark:#A82323; --red-soft:#FBECEC;
  --ink:#1B1B1F; --text:#3A3A40; --muted:#6B6B73;
  --grey:#F5F5F5; --line:#E5E5E8; --white:#fff;
  --radius:14px; --shadow:0 1px 2px rgba(0,0,0,.05),0 8px 24px rgba(20,20,30,.06);
  --max:1180px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Noto Sans Thai","Leelawadee UI",Tahoma,sans-serif;
}
html[lang="th"]{--font:"Noto Sans Thai",system-ui,-apple-system,"Segoe UI",Roboto,"Leelawadee UI",Tahoma,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;font-family:var(--font);font-size:1.0625rem;line-height:1.65;color:var(--text);background:var(--white)}
html[lang="th"] body{line-height:1.8}
img{max-width:100%;height:auto;display:block}
a{color:var(--red);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--red-dark)}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:4px}
h1,h2,h3{color:var(--ink);line-height:1.25;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em}
html[lang="th"] h1,html[lang="th"] h2,html[lang="th"] h3{line-height:1.45;letter-spacing:0}
h1{font-size:clamp(2rem,1.3rem + 2.6vw,3.2rem)}
h2{font-size:clamp(1.6rem,1.2rem + 1.4vw,2.3rem)}
h3{font-size:1.125rem}
h1,h2{text-wrap:balance}
p{margin:0 0 1em}
.container{width:min(100% - 2.5rem,var(--max));margin-inline:auto}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:100}
.skip-link:focus{left:1rem;top:1rem}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* top bar */
.topbar{background:var(--red);color:#fff;font-size:.875rem}
.topbar .container{display:flex;gap:1.5rem;justify-content:flex-end;align-items:center;min-height:36px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none}
.topbar a:hover{text-decoration:underline;color:#fff}
.topbar span,.topbar a{display:inline-flex;align-items:center;gap:.4rem}
.topbar svg{width:15px;height:15px;flex:none}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;gap:1.5rem;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.35rem;color:var(--red);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.logo:hover{color:var(--red-dark)}
.logo svg{width:34px;height:34px;flex:none}
.main-nav{margin-left:auto}
.main-nav ul{list-style:none;display:flex;gap:.25rem;margin:0;padding:0}
.main-nav a{display:block;padding:.5rem .8rem;border-radius:8px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.98rem}
.main-nav a:hover{background:var(--grey);color:var(--red)}
.main-nav a[aria-current="page"]{color:var(--red)}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;gap:2px;flex:none}
.lang-switch a{display:block;padding:.3rem .75rem;border-radius:999px;font-size:.875rem;font-weight:700;color:var(--muted);text-decoration:none;line-height:1.4}
.lang-switch a:hover{color:var(--red)}
.lang-switch a[aria-current="true"]{background:var(--red);color:#fff}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.4rem;border-radius:10px;font-weight:700;font-size:1rem;text-decoration:none;border:2px solid transparent;transition:background .2s,color .2s,border-color .2s,transform .2s;line-height:1.3}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);color:#fff;transform:translateY(-1px)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--red);color:var(--red)}
.btn-light{background:#fff;color:var(--red)}
.btn-light:hover{background:var(--red-soft);color:var(--red-dark)}

/* hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,var(--grey) 100%);border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;right:-12%;top:-30%;width:62%;height:160%;background:radial-gradient(closest-side,rgba(207,46,46,.10),rgba(207,46,46,0));pointer-events:none}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center;padding-block:clamp(3rem,6vw,5.5rem)}
.eyebrow{display:inline-block;font-size:.85rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--red);margin-bottom:1rem}
html[lang="th"] .eyebrow{letter-spacing:.02em;text-transform:none;font-size:.95rem}
.hero .lead{font-size:clamp(1.05rem,1rem + .35vw,1.25rem);color:var(--text);max-width:36em}
.hero-cta{display:flex;flex-wrap:wrap;gap:.75rem;margin:1.75rem 0 2rem}
.facts{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem;margin:0;padding:0}
.facts li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.8rem .9rem;font-size:.85rem;color:var(--muted);line-height:1.4}
.facts strong{display:block;color:var(--ink);font-size:1.15rem;margin-bottom:.15rem}
.hero-visual{position:relative;width:100%;max-width:500px;aspect-ratio:1/1;justify-self:center}
.hero-visual .fallback{position:absolute;inset:0;width:100%;height:100%;transition:opacity .6s}
/* canvas bleeds past the box so the contact shadow and exploded view never clip */
.hero-visual canvas{position:absolute;inset:-14%;width:128%!important;height:128%!important;pointer-events:none;opacity:0;transition:opacity .8s}
.hero-visual.is-3d canvas{opacity:1}
.hero-visual.is-3d .fallback{opacity:0}

/* sections */
.section{padding-block:clamp(3.5rem,7vw,6rem)}
.section-grey{background:var(--grey)}
.section-head{max-width:760px;margin-bottom:2.5rem}
.section-head p{color:var(--muted);font-size:1.075rem}
.kicker{display:block;color:var(--red);font-weight:700;font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.5rem}
html[lang="th"] .kicker{letter-spacing:.02em;text-transform:none;font-size:.95rem}

/* product grid */
.product-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.25rem}
.card{height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .25s,transform .25s,border-color .25s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#d9d9de}
.card a{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}
.card-media{aspect-ratio:4/3;background:var(--grey);position:relative;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media.ph{background:radial-gradient(circle at 50% 50%,#fff 0 17%,transparent 17.5%),radial-gradient(circle at 50% 50%,#D6D6DB 0 23%,transparent 23.5%),radial-gradient(circle at 50% 50%,transparent 0 31%,#E9E9EC 31.5% 37%,transparent 37.5%),linear-gradient(135deg,#F7F7F8,#ECECEF)}
.card-media.ph::before{content:"";position:absolute;left:50%;top:50%;width:46%;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;background:repeating-conic-gradient(var(--red) 0 4deg,transparent 4deg 30deg);-webkit-mask:radial-gradient(circle,transparent 0 52%,#000 53% 66%,transparent 67%);mask:radial-gradient(circle,transparent 0 52%,#000 53% 66%,transparent 67%);opacity:.85}
.card-media.ph::after{content:"";position:absolute;left:50%;top:50%;width:62%;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;border:10px solid #CFCFD5}
.card-body{padding:1.1rem 1.2rem 1.3rem;display:flex;flex-direction:column;flex:1}
.card h3{margin-bottom:.35rem}
.card p{font-size:.95rem;color:var(--muted);margin-bottom:.9rem}
.card .more{margin-top:auto;font-weight:700;color:var(--red);font-size:.92rem}
.card .more::after{content:" →"}
.products-foot{margin-top:2rem;text-align:center}

/* about + quality */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.services{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;grid-template-columns:1fr 1fr;gap:.6rem 1.25rem}
.services li{position:relative;padding-left:1.6rem;font-weight:600;color:var(--ink);font-size:.98rem}
.services li::before{content:"";position:absolute;left:0;top:.55em;width:.7rem;height:.7rem;border-radius:50%;border:3px solid var(--red)}
.q-points{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;gap:1rem}
.q-points li{display:flex;gap:1rem;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:1rem 1.1rem}
.q-points .ico{flex:none;width:42px;height:42px;border-radius:10px;background:var(--red-soft);color:var(--red);display:grid;place-items:center;font-weight:800;font-size:.85rem}
.q-points h3{margin:0 0 .15rem;font-size:1.02rem}
.q-points p{margin:0;font-size:.95rem;color:var(--muted)}

/* CTA */
.cta{background:linear-gradient(120deg,var(--red) 0%,#B92626 100%);color:#fff;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-120px;top:50%;width:420px;height:420px;transform:translateY(-50%);border-radius:50%;border:56px solid rgba(255,255,255,.08);box-shadow:0 0 0 70px rgba(255,255,255,.04)}
.cta .container{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:2rem;align-items:center}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.92)}
.cta-actions{display:flex;flex-direction:column;gap:.75rem;align-items:flex-start}
.cta-actions .mail{color:#fff;font-weight:700;font-size:1.1rem;word-break:break-all}
.cta-actions .mail:hover{color:#fff}

/* footer */
.site-footer{background:#151518;color:#C9C9CF;font-size:.95rem}
.site-footer .container{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2rem;padding-block:3rem 2rem}
.site-footer h2{color:#fff;font-size:1rem;margin-bottom:.8rem}
.site-footer a{color:#E8E8EC;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.35rem}
.footer-logo{color:#fff!important;font-weight:800;font-size:1.25rem}
.footer-bottom{border-top:1px solid #2A2A30;padding-block:1.2rem;font-size:.85rem;color:#8E8E96}
.footer-bottom .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;padding:0}

/* responsive */
@media (max-width:1024px){
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .site-header .container{flex-wrap:wrap;gap:.5rem 1rem;padding-block:.6rem;min-height:0}
  .main-nav{order:3;width:100%;margin-left:0;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .main-nav ul{gap:0;justify-content:space-between}
  .main-nav a{padding:.45rem .5rem;font-size:.93rem;white-space:nowrap}
  .lang-switch{margin-left:auto}
  .hero .container{grid-template-columns:1fr}
  .hero-visual{max-width:340px;order:-1}
  .split,.cta .container,.site-footer .container{grid-template-columns:1fr}
  .split .split-media{order:-1}
}
@media (max-width:768px){
  .hero-visual{max-width:220px}
  .topbar{font-size:.78rem}
  .topbar .container{justify-content:center;gap:.9rem;flex-wrap:nowrap;white-space:nowrap}
}
@media (max-width:560px){
  .product-grid{grid-template-columns:1fr 1fr;gap:.75rem}
  .card-body{padding:.8rem .85rem 1rem}
  .card h3{font-size:.98rem}
  .card p{font-size:.86rem;line-height:1.5}
  .card .more{font-size:.85rem}
}
@media (max-width:480px){
  .main-nav a{padding:.45rem .35rem;font-size:.9rem}
  .services{grid-template-columns:1fr}
  .btn{width:100%}
  .logo{font-size:1.2rem}
  .logo svg{width:30px;height:30px}
}

/* ---------- inner pages ---------- */
.more-link{margin:1.25rem 0 0}
.more-link a{font-weight:700;text-decoration:none}
.more-link a::after{content:" →"}
.cta-link{color:#fff;font-weight:600;font-size:.95rem}
.cta-link:hover{color:#fff}
.breadcrumb{font-size:.9rem;margin-bottom:1.1rem}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.35rem;margin:0;padding:0;color:var(--muted)}
.breadcrumb li+li::before{content:"/";margin-right:.35rem;color:#B5B5BC}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--red);text-decoration:underline}
.breadcrumb [aria-current]{color:var(--ink);font-weight:600}
.page-hero{background:linear-gradient(180deg,#fff 0%,var(--grey) 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-10%;top:-40%;width:55%;height:170%;background:radial-gradient(closest-side,rgba(207,46,46,.08),rgba(207,46,46,0));pointer-events:none}
.page-hero .container{position:relative;padding-block:clamp(2rem,4.5vw,3.5rem)}
.page-hero .lead{font-size:clamp(1.05rem,1rem + .3vw,1.2rem);max-width:46em;color:var(--text)}
.page-hero.has-media .container>.ph-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center}
.page-hero .ph-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;background:#fff}
.page-hero .hero-cta{margin:1.4rem 0 0}
.prose{max-width:72ch}
.prose h2{margin-top:1.6em}
.prose h2:first-child{margin-top:0}
.layout-aside{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(2rem,5vw,4rem);align-items:start}
.aside-card{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow)}
.aside-card h2{font-size:1.15rem}
.aside-card p{font-size:.95rem;color:var(--muted)}
.aside-card .btn{width:100%;margin-top:.5rem}
.aside-card ul{margin:.5rem 0 1rem;padding-left:1.1rem;font-size:.95rem}
.check-list{list-style:none;padding:0;margin:1rem 0 1.5rem;display:grid;gap:.55rem}
.check-list li{position:relative;padding-left:1.9rem}
.check-list li::before{content:"";position:absolute;left:0;top:.35em;width:1.15rem;height:1.15rem;border-radius:50%;background:var(--red-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23CF2E2E' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round' d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/70% no-repeat}
.dot-list{list-style:none;padding:0;margin:1rem 0 1.5rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.6rem 1.25rem}
.dot-list li{position:relative;padding-left:1.6rem;font-weight:600;color:var(--ink);font-size:.98rem}
.dot-list li::before{content:"";position:absolute;left:0;top:.55em;width:.7rem;height:.7rem;border-radius:50%;border:3px solid var(--red)}
.callout{border-left:4px solid var(--red);background:var(--red-soft);border-radius:0 12px 12px 0;padding:1rem 1.2rem;margin:1.5rem 0}
.callout h2,.callout h3{font-size:1.05rem;margin-bottom:.35rem}
.callout p:last-child{margin-bottom:0}
.ph-note{display:inline;background:#FFF4CC;color:#6B5200;border:1px dashed #E0B800;border-radius:4px;padding:0 .3em;font-size:.92em;font-weight:600}
.steps{list-style:none;counter-reset:s;padding:0;margin:1rem 0 1.5rem;display:grid;gap:.8rem}
.steps li{counter-increment:s;position:relative;padding:.9rem 1rem .9rem 3.4rem;background:#fff;border:1px solid var(--line);border-radius:12px}
.steps li::before{content:counter(s);position:absolute;left:1rem;top:.85rem;width:1.7rem;height:1.7rem;border-radius:50%;background:var(--red);color:#fff;font-weight:800;display:grid;place-items:center;font-size:.85rem}
.related{margin-top:3rem}
.product-grid.compact{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.feature-grid{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}
.feature-grid li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.1rem 1.2rem}
.feature-grid h3{font-size:1.02rem;margin-bottom:.3rem}
.feature-grid p{margin:0;font-size:.95rem;color:var(--muted)}
.faq{display:grid;gap:.7rem;margin-top:1rem}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.9rem 1.1rem}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink)}
.faq details[open] summary{margin-bottom:.5rem;color:var(--red)}
.faq details p{margin:0}
/* contact */
.hint{font-size:.85rem;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:clamp(2rem,5vw,4rem);align-items:start}
.info-list{list-style:none;padding:0;margin:0;display:grid;gap:1rem}
.info-list li{display:flex;gap:.9rem;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:1rem 1.1rem}
.info-list .ico{flex:none;width:40px;height:40px;border-radius:10px;background:var(--red-soft);color:var(--red);display:grid;place-items:center}
.info-list .ico svg{width:20px;height:20px}
.info-list h3{margin:0 0 .15rem;font-size:1rem}
.info-list p{margin:0;font-size:.97rem}
@media (max-width:900px){
  .page-hero.has-media .container>.ph-grid,.layout-aside,.contact-grid{grid-template-columns:1fr}
  .aside-card{position:static}
}
@media print{.topbar,.site-header,.hero-visual,.cta::after{display:none}}

/* stats + horizontal steps (about / quality / contact) */
.stat-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}
.stat-grid li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem 1.2rem;text-align:center}
.stat-grid strong{display:block;font-size:clamp(1.8rem,1.4rem + 1.4vw,2.6rem);line-height:1.1;color:var(--red);font-variant-numeric:tabular-nums;margin-bottom:.35rem}
.stat-grid span{color:var(--muted);font-size:.95rem}
.steps-row{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.steps-row li strong{display:block;color:var(--ink);margin-bottom:.2rem}
@media (max-width:760px){.stat-grid{grid-template-columns:1fr 1fr}}

/* ---------- site effects (progressive: only when site.js adds .fx) ---------- */
.scroll-progress{position:fixed;left:0;top:0;height:3px;width:100%;background:var(--red);transform-origin:0 50%;transform:scaleX(0);z-index:60;pointer-events:none}
.site-header{transition:box-shadow .3s,background .3s}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(20,20,30,.08);background:rgba(255,255,255,.9)}
.main-nav a{position:relative}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--red);transform:scaleX(0);transform-origin:50% 50%;transition:transform .25s}
.main-nav a:hover::after,.main-nav a[aria-current="page"]::after{transform:scaleX(1)}
.card-media img{transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-media img{transform:scale(1.06)}
.btn-primary{position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);transform:skewX(-20deg);transition:left .6s}
.btn-primary:hover::after{left:120%}
.feature-grid li,.q-points li,.info-list li,.stat-grid li,.steps li{transition:transform .25s,box-shadow .25s,border-color .25s}
.feature-grid li:hover,.q-points li:hover,.info-list li:hover,.stat-grid li:hover,.steps li:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d9d9de}
.fx .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.fx .reveal.is-in{opacity:1;transform:none}
.fx .page-hero h1,.fx .page-hero .lead,.fx .hero-copy>*{animation:fx-rise .8s cubic-bezier(.2,.7,.2,1) both}
.fx .page-hero .lead,.fx .hero-copy>:nth-child(2){animation-delay:.08s}
.fx .hero-copy>:nth-child(3){animation-delay:.16s}
.fx .hero-copy>:nth-child(4){animation-delay:.24s}
.fx .hero-copy>:nth-child(5){animation-delay:.32s}
@keyframes fx-rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.fx .reveal{opacity:1;transform:none}.scroll-progress{display:none}}