/* ===== Design tokens ===== */
:root{
  --steel-900:#15181b;
  --steel-800:#1f2327;
  --steel-700:#2b2f33;
  --steel-600:#3c4147;
  --steel-500:#565c63;
  --steel-200:#c7cbd1;
  --steel-100:#eceef0;
  --white:#ffffff;
  --yellow-300:#ffdd66;
  --yellow-400:#ffd23f;
  --yellow-500:#ffc107;
  --yellow-600:#e0a500;
  --yellow-700:#b98500;
  --yellow-ink:#8a6400;
  --ink:#121212;
  --error:#c8102e;
  /* alias giữ tương thích ngược */
  --red-600:var(--yellow-500);
  --red-700:var(--yellow-600);
  --red-400:var(--yellow-400);
  --font-head:'Oswald',Arial,sans-serif;
  --font-body:'Inter',Arial,sans-serif;
  --radius:4px;
  --shadow-card:0 10px 30px rgba(0,0,0,.18);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--steel-800);
  background:var(--white);
  line-height:1.6;
  font-size:16px;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.02em;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,4vw,3.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.3rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-head);text-transform:uppercase;letter-spacing:.04em;font-weight:600;font-size:.9rem;
  padding:14px 28px;border-radius:var(--radius);border:2px solid transparent;cursor:pointer;
  transition:all .25s ease;
}
.btn{position:relative;overflow:hidden}
.btn::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform .6s ease}
.btn:hover::before{transform:translateX(120%)}
.btn-primary{background:var(--yellow-500);color:var(--ink);box-shadow:0 0 0 0 rgba(255,193,7,.5)}
.btn-primary:hover{background:var(--yellow-400);transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,193,7,.35)}
.btn-outline{border-color:#fff;color:#fff}
.btn-outline:hover{background:#fff;color:var(--steel-900)}
.btn-dark{background:var(--steel-900);color:#fff}
.btn-dark:hover{background:var(--steel-700)}
.section{padding:72px 0}
.section-dark{background:var(--steel-900);color:#fff}
.section-alt{background:var(--steel-100)}
.eyebrow{color:var(--yellow-ink);font-family:var(--font-head);text-transform:uppercase;letter-spacing:.1em;font-size:.85rem;font-weight:600;margin-bottom:10px;display:block;position:relative;padding-left:26px}
.eyebrow::before{content:'';position:absolute;left:0;top:50%;width:18px;height:3px;background:var(--yellow-500);transform:translateY(-50%)}
.section-dark .eyebrow,.hero .eyebrow,.page-hero .eyebrow{color:var(--yellow-400)}
.section-head{max-width:720px;margin:0 0 40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow{padding-left:0}
.section-head.center .eyebrow::before{display:none}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.22,.88,.3,1),transform .7s cubic-bezier(.22,.88,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.92);transition:opacity .6s ease,transform .6s cubic-bezier(.22,.88,.3,1)}
.reveal-scale.in{opacity:1;transform:scale(1)}

/* ===== Scroll progress bar ===== */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0%;background:linear-gradient(90deg,var(--yellow-600),var(--yellow-400));z-index:200;transition:width .1s linear;box-shadow:0 0 8px rgba(255,193,7,.6)}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(21,24,27,.97);backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,.08);transition:box-shadow .3s ease}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(0,0,0,.35)}
.site-header.is-scrolled .nav-wrap{padding:8px 0}
.topbar{background:var(--steel-900);color:var(--steel-200);font-size:.82rem;overflow:hidden}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;gap:6px}
.topbar a{color:var(--steel-200)}
.topbar a:hover{color:#fff}
.topbar-right{display:flex;gap:18px}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0;transition:padding .3s ease}
.logo{font-family:var(--font-head);display:flex;flex-direction:column;line-height:1.3;white-space:nowrap}
.logo-line{font-weight:600;font-size:1.15rem;color:#fff;letter-spacing:.03em;text-transform:uppercase;display:block}
.logo-accent{font-weight:700;font-size:1.4rem;color:var(--yellow-500);display:block;margin-top:2px}
.main-nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.main-nav a{color:#fff;font-family:var(--font-head);font-size:.92rem;text-transform:uppercase;letter-spacing:.03em;padding:8px 0;position:relative;transition:color .2s}
.main-nav a:hover{color:var(--yellow-400)}
.main-nav a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--yellow-500);transition:width .3s cubic-bezier(.22,.88,.3,1);box-shadow:0 0 8px rgba(255,193,7,.6)}
.main-nav a:hover::after,.main-nav li.current-menu-item a::after{width:100%}
.main-nav li{position:relative}
.main-nav ul ul{display:none;position:absolute;top:100%;left:0;background:var(--steel-800);min-width:240px;padding:10px 0;box-shadow:var(--shadow-card);flex-direction:column;gap:0;z-index:60}
.main-nav li:hover > ul{display:flex}
.main-nav ul ul a{padding:10px 18px;display:block;font-size:.85rem;text-transform:none;letter-spacing:0}
.main-nav ul ul a::after{display:none}
.header-cta{display:flex;align-items:center;gap:16px}
.hamburger{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}

/* ===== Hero ===== */
@keyframes stripePan{0%{background-position:0 0}100%{background-position:120px 120px}}
@keyframes glowPulse{0%,100%{opacity:.55;transform:scale(1)}50%{opacity:.9;transform:scale(1.08)}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero{position:relative;min-height:88vh;display:flex;align-items:center;color:#fff;overflow:hidden;background:
  radial-gradient(circle at 85% 50%, rgba(255,193,7,.14), transparent 55%),
  linear-gradient(100deg, rgba(10,11,13,.94) 0%, rgba(10,11,13,.88) 38%, rgba(10,11,13,.55) 100%),
  url('../img/hero-factory.jpg') center 35%/cover no-repeat;
}
.hero::after{content:'';position:absolute;inset:0;background:repeating-linear-gradient(135deg, rgba(255,193,7,.04) 0 2px, transparent 2px 26px);animation:stripePan 12s linear infinite;pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;width:100%}
.hero-inner{max-width:620px}
.hero p.lead{font-size:1.1rem;color:var(--steel-200);max-width:540px}
.hero-actions{display:flex;gap:16px;margin-top:28px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:56px;flex-wrap:wrap}
.hero-stats div strong{display:block;font-family:var(--font-head);font-size:2rem;color:var(--yellow-400)}
.hero-stats div span{font-size:.82rem;color:var(--steel-200);text-transform:uppercase;letter-spacing:.05em}
.hero-media{position:relative;height:460px;display:flex;align-items:center;justify-content:center}
.hero-media::before{content:'';position:absolute;inset:6%;background:radial-gradient(circle,rgba(255,193,7,.3),transparent 70%);border-radius:50%;filter:blur(10px);animation:glowPulse 4s ease-in-out infinite}
.hero-slides{position:relative;width:100%;height:100%}
.hero-slide{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity 1.2s ease}
.hero-slide.is-active{opacity:1}
.hero-slide.is-active img{animation:floatY 5s ease-in-out infinite}
.hero-slide img{max-height:420px;width:auto;max-width:100%;object-fit:contain;border-radius:20px;filter:drop-shadow(0 30px 40px rgba(0,0,0,.5))}
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .hero-media{height:280px;order:-1}
  .hero-slide img{max-height:240px}
}

/* ===== Category grid ===== */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:280px;display:flex;align-items:flex-end;background-color:var(--steel-700);background-position:center 30%;background-repeat:no-repeat;background-size:62%;isolation:isolate;transition:transform .4s cubic-bezier(.22,.88,.3,1),box-shadow .4s ease;will-change:transform}
.cat-card::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,10,10,.95) 35%,rgba(10,10,10,.25));z-index:-1}
.cat-card::after{content:'';position:absolute;inset:0;border:1px solid rgba(255,193,7,0);transition:border-color .3s ease;pointer-events:none;border-radius:var(--radius)}
.cat-card .cat-body{padding:24px;color:#fff;width:100%}
.cat-card h3{margin-bottom:6px;color:#fff;transition:color .25s}
.cat-card p{color:var(--steel-200);font-size:.88rem;margin-bottom:10px}
.cat-card .tag{display:inline-block;background:var(--yellow-500);color:var(--ink);font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:2px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}
.cat-card:hover{box-shadow:0 20px 45px rgba(0,0,0,.45);transform:translateY(-8px) scale(1.015)}
.cat-card:hover::after{border-color:rgba(255,193,7,.6)}
.cat-card:hover h3{color:var(--yellow-400)}

/* ===== Product grid/cards ===== */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.product-card{background:#fff;border:1px solid var(--steel-100);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s ease,transform .3s cubic-bezier(.22,.88,.3,1),border-color .3s ease;display:flex;flex-direction:column;transform-style:preserve-3d;will-change:transform}
.product-card:hover{box-shadow:0 18px 40px rgba(0,0,0,.14);transform:translateY(-6px);border-color:var(--yellow-500)}
.product-thumb{aspect-ratio:1/1;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.product-thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(120deg,transparent 40%,rgba(255,193,7,.25) 50%,transparent 60%);transform:translateX(-120%);transition:transform .7s ease}
.product-card:hover .product-thumb::after{transform:translateX(120%)}
.product-thumb img{width:100%;height:100%;object-fit:contain;padding:14px;border-radius:12px;transition:transform .4s cubic-bezier(.22,.88,.3,1)}
.product-card:hover .product-thumb img{transform:scale(1.08) rotate(-1deg)}
.product-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-brand{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--yellow-ink);font-weight:700}
.product-card h3{font-size:1rem;margin:0;text-transform:none;letter-spacing:0;font-family:var(--font-body);font-weight:600;color:var(--steel-900)}
.product-specs-mini{font-size:.8rem;color:var(--steel-500);display:flex;flex-direction:column;gap:2px}
.product-card .btn{margin-top:auto;align-self:flex-start;padding:10px 18px;font-size:.78rem}

/* ===== Filter bar ===== */
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:36px;align-items:center}
.filter-bar input[type=search]{flex:1;min-width:220px;padding:12px 16px;border:1px solid var(--steel-200);border-radius:var(--radius);font-family:var(--font-body)}
.filter-chip{padding:10px 18px;border:1px solid var(--steel-200);border-radius:30px;font-size:.85rem;cursor:pointer;background:#fff;transition:all .2s}
.filter-chip.active,.filter-chip:hover{background:var(--yellow-500);color:var(--ink);border-color:var(--yellow-500)}

/* ===== Why us ===== */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:30px}
.why-item{display:flex;gap:16px;transition:transform .3s ease}
.why-item:hover{transform:translateX(4px)}
.why-item .ico{flex:0 0 52px;height:52px;border-radius:50%;background:var(--yellow-500);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-head);font-size:1.3rem;transition:transform .3s cubic-bezier(.22,.88,.3,1),box-shadow .3s ease}
.why-item:hover .ico{transform:scale(1.12) rotate(-6deg);box-shadow:0 8px 20px rgba(255,193,7,.4)}
.why-item h3{font-size:1.05rem;margin-bottom:4px}
.why-item p{color:var(--steel-500);font-size:.92rem;margin:0}

/* ===== Marquee ticker ===== */
@keyframes marqueeScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.marquee{overflow:hidden;background:var(--ink);border-top:2px solid var(--yellow-500);border-bottom:2px solid var(--yellow-500);padding:14px 0}
.marquee-track{display:flex;width:max-content;animation:marqueeScroll 26s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:flex;align-items:center;gap:12px;padding:0 32px;font-family:var(--font-head);text-transform:uppercase;letter-spacing:.06em;font-size:.95rem;color:#fff;white-space:nowrap}
.marquee-item .dot{width:6px;height:6px;border-radius:50%;background:var(--yellow-500)}

/* ===== Industries strip ===== */
.industry-strip{display:flex;overflow-x:auto;gap:16px;padding-bottom:8px;scrollbar-width:none}
.industry-strip::-webkit-scrollbar{display:none}
.industry-card{flex:0 0 220px;height:160px;border-radius:var(--radius);background-position:center;background-repeat:no-repeat;background-size:70%;position:relative;display:flex;align-items:flex-end;padding:16px;color:#fff;font-family:var(--font-head);text-transform:uppercase;font-size:.95rem;letter-spacing:.03em;overflow:hidden;transition:transform .35s cubic-bezier(.22,.88,.3,1)}
.industry-card::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.88) 30%,rgba(0,0,0,.2));border-radius:var(--radius);transition:background .3s ease}
.industry-card::after{content:'';position:absolute;inset:0;border:2px solid transparent;border-radius:var(--radius);transition:border-color .3s ease}
.industry-card span{position:relative;z-index:1;transition:color .3s ease}
.industry-card:hover{transform:translateY(-6px)}
.industry-card:hover::after{border-color:var(--yellow-500)}
.industry-card:hover span{color:var(--yellow-400)}

/* ===== Articles ===== */
.article-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}
.article-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.06);display:flex;flex-direction:column;transition:transform .35s cubic-bezier(.22,.88,.3,1),box-shadow .35s ease}
.article-card:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(0,0,0,.14)}
.article-thumb{aspect-ratio:16/10;background:var(--steel-200);overflow:hidden;transition:filter .3s ease}
.article-thumb img{width:100%;height:100%;object-fit:cover}
.article-card:hover .article-thumb{filter:brightness(1.05) saturate(1.1)}
.article-body{padding:20px}
.article-date{font-size:.76rem;color:var(--yellow-ink);text-transform:uppercase;letter-spacing:.06em;font-weight:700}
.article-card h3{font-size:1.05rem;margin:8px 0;text-transform:none;letter-spacing:0;font-family:var(--font-body);font-weight:600;transition:color .2s}
.article-card:hover h3{color:var(--yellow-700)}
.article-card p{font-size:.88rem;color:var(--steel-500)}

/* ===== CTA band ===== */
@keyframes ctaShine{0%{background-position:-200% 0}100%{background-position:200% 0}}
.cta-band{background:linear-gradient(100deg,var(--yellow-600),var(--yellow-400) 45%,var(--yellow-600) 55%,var(--yellow-400) 100%);background-size:260% 100%;animation:ctaShine 6s linear infinite;color:var(--ink);padding:56px 0;text-align:center}
.cta-band h2{color:var(--ink)}
.cta-band p{color:rgba(0,0,0,.72);max-width:560px;margin:0 auto 24px}
.cta-band .btn-primary{background:var(--ink);color:#fff}
.cta-band .btn-primary:hover{background:#000}

/* ===== Form ===== */
.quote-form{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-card);padding:32px;color:var(--steel-900)}
.quote-form h3{margin-bottom:6px}
.quote-form .sub{color:var(--steel-500);font-size:.9rem;margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form-row.full{grid-template-columns:1fr}
.quote-form label{display:block;font-size:.82rem;font-weight:600;margin-bottom:6px;color:var(--steel-700)}
.quote-form input,.quote-form textarea,.quote-form select{width:100%;padding:12px 14px;border:1px solid var(--steel-200);border-radius:var(--radius);font-family:var(--font-body);font-size:.95rem;transition:border-color .2s,box-shadow .2s}
.quote-form input:focus,.quote-form textarea:focus,.quote-form select:focus{outline:none;border-color:var(--yellow-600);box-shadow:0 0 0 3px rgba(255,193,7,.25)}
.quote-form button[type=submit]{position:relative}
.form-msg{margin-top:14px;font-size:.88rem;padding:10px 14px;border-radius:var(--radius);display:none}
.form-msg.ok{display:block;background:#e9f9ee;color:#1a7a3c}
.form-msg.err{display:block;background:#fdeaea;color:var(--error)}

/* ===== Footer ===== */
.site-footer{background:var(--steel-900);color:var(--steel-200);padding:64px 0 24px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;margin-bottom:40px}
.footer-grid h4{color:#fff;font-size:.95rem;margin-bottom:16px}
.footer-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-grid a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.8rem;color:var(--steel-500)}
.social-row{display:flex;gap:10px}
.social-row a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;transition:transform .25s cubic-bezier(.22,.88,.3,1),background .25s}
.social-row a:hover{background:var(--yellow-500);color:var(--ink);transform:translateY(-3px) rotate(-6deg)}

/* ===== Product detail ===== */
.mcng-breadcrumb ol{list-style:none;display:flex;gap:8px;padding:0;margin:0;font-size:.82rem;color:var(--steel-500)}
.mcng-breadcrumb li:not(:last-child)::after{content:'/';margin-left:8px}
.mcng-breadcrumb a:hover{color:var(--yellow-ink)}
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.product-gallery{background:#fff;border:1px solid var(--steel-100);border-radius:var(--radius);padding:30px;display:flex;align-items:center;justify-content:center;min-height:380px;position:relative;overflow:hidden}
.product-gallery img{border-radius:16px;transition:transform .5s cubic-bezier(.22,.88,.3,1)}
.product-gallery:hover img{transform:scale(1.06)}
.product-info .product-brand{font-size:.85rem;margin-bottom:8px}
.product-info h1{font-size:1.9rem;margin-bottom:14px}
.price-tag{font-family:var(--font-head);color:var(--yellow-ink);font-size:1.1rem;margin-bottom:20px;display:inline-flex;align-items:center;gap:8px}
.price-tag::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--yellow-500);box-shadow:0 0 0 0 rgba(255,193,7,.6);animation:tagPulse 2s infinite}
@keyframes tagPulse{0%{box-shadow:0 0 0 0 rgba(255,193,7,.5)}70%{box-shadow:0 0 0 8px rgba(255,193,7,0)}100%{box-shadow:0 0 0 0 rgba(255,193,7,0)}}
.spec-table{width:100%;border-collapse:collapse;margin:24px 0}
.spec-table tr{border-bottom:1px solid var(--steel-100)}
.spec-table td{padding:10px 0;font-size:.92rem}
.spec-table td:first-child{color:var(--steel-500);width:45%}
.spec-table td:last-child{font-weight:600}
.related-products{margin-top:72px}

/* ===== Blog article ===== */
.article-content{max-width:760px;margin:0 auto}
.article-content h1{font-size:2rem;margin-bottom:10px}
.article-meta{color:var(--steel-500);font-size:.85rem;margin-bottom:30px}
.article-content .article-cover{aspect-ratio:16/9;background:var(--steel-200);border-radius:var(--radius);margin-bottom:32px;overflow:hidden}
.article-content .article-cover img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius)}
.article-content h2{font-size:1.4rem;text-transform:none;letter-spacing:0;margin-top:2em}
.article-content h3{text-transform:none;letter-spacing:0}
.article-content p,.article-content li{color:var(--steel-700);font-size:1rem}
.article-content ul,.article-content ol{padding-left:22px}
.faq-item{border-bottom:1px solid var(--steel-100);padding:18px 0}
.faq-item summary{cursor:pointer;font-weight:600;font-family:var(--font-head);text-transform:uppercase;font-size:.95rem;letter-spacing:.02em;transition:color .2s}
.faq-item summary:hover{color:var(--yellow-ink)}
.faq-item[open] summary{color:var(--yellow-700)}

/* ===== Page header (for archive/contact) ===== */
.page-hero{position:relative;color:#fff;padding:90px 0 56px;text-align:center;overflow:hidden;background:
  linear-gradient(180deg, rgba(20,22,26,.55) 0%, rgba(20,22,26,.68) 100%),
  url('../img/page-hero-sanding.jpg') center 30%/cover no-repeat;
}
.page-hero::after{content:'';position:absolute;inset:0;background:repeating-linear-gradient(135deg, rgba(255,193,7,.04) 0 2px, transparent 2px 26px);pointer-events:none}
.page-hero .container{position:relative;z-index:1}
.page-hero p{color:var(--steel-200);max-width:600px;margin:10px auto 0}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-cards{display:flex;flex-direction:column;gap:18px}
.contact-card{display:flex;gap:16px;background:var(--steel-100);padding:20px;border-radius:var(--radius);transition:transform .25s ease,box-shadow .25s ease}
.contact-card:hover{transform:translateX(6px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.contact-card .ico{flex:0 0 44px;height:44px;border-radius:50%;background:var(--yellow-500);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:700}
.map-embed{margin-top:24px;border-radius:var(--radius);overflow:hidden;height:320px}
.map-embed iframe{width:100%;height:100%;border:0}

/* ===== Responsive ===== */
@media (max-width:960px){
  .main-nav{position:fixed;inset:64px 0 0 0;background:var(--steel-900);flex-direction:column;padding:20px;display:none;overflow-y:auto}
  .main-nav.open{display:flex}
  .main-nav ul{flex-direction:column;gap:4px}
  .main-nav ul ul{position:static;background:none;box-shadow:none;padding-left:14px}
  .hamburger{display:block}
  .header-cta .btn span{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .product-detail,.contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .hero{min-height:auto;padding:120px 0 60px}
  .hero-stats{gap:24px}
}