/* ============================================================
   AJRT Seating — design system
   Brand: graphite #121F25 + signature red #D5353D
   Multilingual (LTR + RTL), zero-framework, performance-first
   ============================================================ */
:root{
  --ink:#121F25;        /* graphite (header/footer/headlines) */
  --ink-2:#1b2c34;
  --red:#D5353D;        /* signature red */
  --red-dark:#B81C23;
  --paper:#ffffff;
  --mist:#f5f6f7;       /* section tint */
  --line:#e6e8ea;
  --muted:#5b6670;
  --text:#26323a;
  --gold:#e7b66b;       /* subtle accent for trust marks */
  --maxw:1200px;
  --gut:clamp(16px,4vw,40px);
  --radius:14px;
  --shadow:0 6px 24px rgba(18,31,37,.10);
  --shadow-lg:0 18px 50px rgba(18,31,37,.16);
  --t:.28s cubic-bezier(.4,0,.2,1);
  --font:"Inter","Helvetica Neue",-apple-system,BlinkMacSystemFont,"Segoe UI",
        "Noto Sans","Noto Sans SC","Noto Sans TC","Noto Sans JP","Noto Sans KR",
        "Noto Sans Arabic","Noto Sans Devanagari","Noto Sans Bengali",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--paper);line-height:1.7;
  font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
/* every inline icon has a sane default size; specific contexts override below */
svg{width:1.15em;height:1.15em;flex:none}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;font-weight:800;letter-spacing:-.01em}
[dir="rtl"] body{letter-spacing:0}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:700;font-size:.98rem;
  padding:.85em 1.6em;border-radius:999px;transition:var(--t);cursor:pointer;border:2px solid transparent;white-space:nowrap}
.btn svg{width:1.1em;height:1.1em;flex:none}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(213,53,61,.34)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn-lg{padding:1.05em 2.1em;font-size:1.05rem}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--ink);color:#fff;
  transition:var(--t)}
.site-header .wrap{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;height:40px}
.brand img,.brand svg{height:40px;width:auto}
.nav{display:flex;gap:26px;margin-inline-start:auto;align-items:center}
.nav a{font-weight:600;font-size:.96rem;color:rgba(255,255,255,.86);position:relative;padding:6px 0}
.nav a:hover,.nav a[aria-current="page"]{color:#fff}
.nav a::after{content:"";position:absolute;inset-inline:0;bottom:-2px;height:2px;background:var(--red);
  transform:scaleX(0);transition:transform var(--t);transform-origin:inline-start}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.header-cta{display:flex;align-items:center;gap:14px}
.lang-switch{position:relative}
.lang-switch{flex:none}
.lang-switch>button{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.1);
  color:#fff;border:0;border-radius:999px;padding:8px 14px;font:inherit;font-size:.9rem;cursor:pointer;white-space:nowrap;line-height:1}
.lang-switch>button svg{width:16px;height:16px}
.lang-switch>button:hover{background:rgba(255,255,255,.2)}
.lang-menu{position:absolute;inset-inline-end:0;top:calc(100% + 8px);background:#fff;color:var(--ink);
  border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;display:none;grid-template-columns:1fr 1fr;
  gap:2px;min-width:300px;max-height:60vh;overflow:auto}
.lang-menu.open{display:grid}
.lang-menu a{padding:8px 12px;border-radius:8px;font-size:.9rem;white-space:nowrap}
.lang-menu a:hover{background:var(--mist)}
.lang-menu a[aria-current="true"]{color:var(--red);font-weight:700}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px}
.menu-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:var(--t)}

/* ---------- breadcrumbs ---------- */
.crumbs{background:var(--mist);border-bottom:1px solid var(--line);font-size:.85rem}
.crumbs .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-block:11px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--red)}
.crumbs .sep{color:#bcc3c8}
.crumbs [aria-current=page]{color:var(--ink);font-weight:600}
[dir=rtl] .crumbs .sep{transform:scaleX(-1)}

/* ---------- blog ---------- */
.wrap-narrow{max-width:768px;margin:0 auto;padding:0 24px}
.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:900px){.posts-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.posts-grid{grid-template-columns:1fr}}
.card-post{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:var(--t)}
.card-post:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(18,31,37,.12)}
.card-post img{aspect-ratio:3/2;object-fit:cover;width:100%}
.cp-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.cp-tag{font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:var(--red);font-weight:700}
.card-post h3,.card-post h4{font-size:1.05rem;line-height:1.35;color:var(--ink)}
.cp-body p{color:var(--muted);font-size:.9rem;flex:1}
.cp-date{color:#9aa3a8;font-size:.82rem}
.post-head{padding:44px 0 6px}
.post-tag{display:inline-block;font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;color:var(--red);font-weight:700;margin-bottom:12px}
.post-head h1{font-size:2.15rem;line-height:1.18}
.post-meta{color:var(--muted);font-size:.9rem;margin-top:14px}
.post-hero{margin:26px 0 6px;border-radius:16px;overflow:hidden}
.post-hero img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-body{font-size:1.06rem;line-height:1.8;color:#2c3a42}
.post-body h2{font-size:1.5rem;margin:36px 0 12px;color:var(--ink)}
.post-body h3{font-size:1.2rem;margin:26px 0 10px;color:var(--ink)}
.post-body p{margin:0 0 18px}
.post-body ul,.post-body ol{margin:0 0 18px;padding-left:22px}
.post-body li{margin:0 0 9px}
.post-body a{color:var(--red);text-decoration:underline}
.post-body strong{color:var(--ink)}
.post-body blockquote{margin:22px 0;padding:14px 22px;border-left:4px solid var(--red);background:var(--mist);border-radius:0 10px 10px 0;color:var(--ink);font-style:italic}
.post-fig{margin:26px 0}
.post-fig img{width:100%;border-radius:12px}
.post-fig figcaption{font-size:.85rem;color:var(--muted);margin-top:8px;text-align:center}
.post-cta{margin:40px 0 8px;padding:30px 32px;background:var(--ink);color:#fff;border-radius:16px}
.post-cta h3{color:#fff;font-size:1.35rem;margin-bottom:8px}
.post-cta p{color:rgba(255,255,255,.82);margin-bottom:20px}
.post-cta-row{display:flex;gap:14px;flex-wrap:wrap}
[dir=rtl] .post-body blockquote{border-left:0;border-right:4px solid var(--red);border-radius:10px 0 0 10px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(900px 500px at 85% -10%,rgba(213,53,61,.28),transparent 60%);}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;
  align-items:center;padding-block:clamp(48px,7vw,96px)}
.hero h1{font-size:clamp(2rem,4.4vw,3.4rem);color:#fff}
.hero .lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:rgba(255,255,255,.82);margin:22px 0 30px;max-width:42ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:34px;font-size:.86rem;color:rgba(255,255,255,.7)}
.hero-trust span{display:inline-flex;align-items:center;gap:7px}
.hero-trust svg{width:16px;height:16px;color:var(--red)}
.hero-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* ---------- sections ---------- */
.section{padding-block:clamp(56px,8vw,104px)}
.section.tint{background:var(--mist)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--red);font-weight:700;
  font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--red)}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem)}
.section-head p{color:var(--muted);margin-top:14px;font-size:1.05rem}

/* ---------- value cards ---------- */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  transition:var(--t)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.card .ico{width:52px;height:52px;display:grid;place-items:center;border-radius:12px;
  background:rgba(213,53,61,.1);color:var(--red);margin-bottom:18px}
.card .ico svg{width:26px;height:26px}
.card h3{font-size:1.18rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.97rem}

/* ---------- stat strip ---------- */
.stats{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;text-align:center}
.stat .num{font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:800;color:var(--ink)}
.stat .lbl{font-size:.84rem;color:var(--muted);margin-top:6px}

/* ---------- category cards ---------- */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:5/4;display:block;background:var(--ink)}
.cat img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.86}
.cat:hover img{transform:scale(1.06)}
.cat::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(18,31,37,.86),transparent 62%)}
.cat .meta{position:absolute;inset-inline:0;bottom:0;padding:22px;color:#fff;z-index:1}
.cat .meta h3{color:#fff;font-size:1.25rem}
.cat .meta p{color:rgba(255,255,255,.8);font-size:.9rem;margin-top:4px}
.cat .meta .cnt{display:inline-block;margin-top:10px;font-size:.8rem;background:var(--red);
  padding:3px 10px;border-radius:999px}

/* ---------- product gallery ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.filters button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:999px;
  padding:8px 18px;font:inherit;font-size:.92rem;cursor:pointer;transition:var(--t)}
.filters button:hover{border-color:var(--ink)}
.filters button.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.products{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.product{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;transition:var(--t)}
.product:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.product .ph{aspect-ratio:1;background:var(--mist);overflow:hidden}
.product .ph img{width:100%;height:100%;object-fit:cover}
.product .pinfo{padding:12px 14px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.product .pinfo b{font-size:.96rem;color:var(--ink)}
.product .pinfo .tag{font-size:.74rem;color:var(--muted)}
.product .ask{font-size:.8rem;color:var(--red);font-weight:700}
.load-more{display:block;margin:34px auto 0}

/* ---------- timeline (ODM) ---------- */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.tl-step{position:relative;padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.tl-step::before{counter-increment:step;content:counter(step);position:absolute;top:-18px;inset-inline-start:24px;
  width:38px;height:38px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:800}
.tl-step h4{margin:6px 0 8px;font-size:1.08rem}
.tl-step p{color:var(--muted);font-size:.94rem}

/* ---------- trust / certs strip ---------- */
.trust-strip{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;align-items:center}
.trust-strip .chip{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:11px 20px;font-weight:600;font-size:.92rem;color:var(--ink)}
.trust-strip .chip svg{width:20px;height:20px;color:var(--red)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-inline:auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:22px 0;font-weight:700;color:var(--ink);
  font-size:1.06rem;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pm{flex:none;width:24px;height:24px;position:relative;transition:var(--t)}
.faq summary .pm::before,.faq summary .pm::after{content:"";position:absolute;background:var(--red);inset-inline:0;
  top:50%;height:2px;transform:translateY(-50%)}
.faq summary .pm::after{transform:rotate(90deg);transition:var(--t)}
.faq details[open] summary .pm::after{transform:rotate(0)}
.faq details p{padding:0 0 22px;color:var(--muted)}

/* ---------- contact / form ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cinfo li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.cinfo .ico{flex:none;width:44px;height:44px;border-radius:10px;background:rgba(213,53,61,.1);color:var(--red);display:grid;place-items:center}
.cinfo .ico svg{width:22px;height:22px}
.cinfo li>svg{width:1.2em;height:1.2em;color:var(--red);margin-top:.15em}
.cinfo b{display:block;color:var(--ink)}
.cinfo span{color:var(--muted);font-size:.94rem}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.88rem;font-weight:600;color:var(--ink);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font:inherit;font-size:.96rem;background:#fff;transition:var(--t)}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--red);
  box-shadow:0 0 0 3px rgba(213,53,61,.14)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:.82rem;color:var(--muted);margin-top:8px}
.form-msg{margin-top:14px;padding:12px 14px;border-radius:10px;font-size:.92rem;display:none}
.form-msg.ok{display:block;background:#e8f6ec;color:#1c7a3d}
.form-msg.err{display:block;background:#fdecec;color:#b3261e}
.cap-row{display:flex;align-items:center;gap:12px}
.cap-q{font-weight:800;color:var(--ink);background:var(--mist);padding:11px 16px;border-radius:10px;font-size:1.05rem;letter-spacing:.04em;white-space:nowrap;user-select:none}
.cap-row input{flex:1}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0;pointer-events:none}

/* ---------- floating inquiry ---------- */
.float-cta{position:fixed;inset-inline-end:20px;bottom:20px;z-index:40;display:flex;align-items:center;gap:10px;
  background:var(--red);color:#fff;border:0;border-radius:999px;padding:14px 22px;font:inherit;font-weight:700;
  cursor:pointer;box-shadow:0 12px 30px rgba(213,53,61,.4);transition:var(--t)}
.float-cta:hover{background:var(--red-dark);transform:translateY(-2px)}
.float-cta svg{width:20px;height:20px}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(18,31,37,.92);display:none;
  align-items:center;justify-content:center;padding:5vw}
.lightbox.open{display:flex}
.lightbox img{max-width:90vw;max-height:86vh;border-radius:10px;box-shadow:var(--shadow-lg)}
.lightbox .close{position:absolute;top:20px;inset-inline-end:24px;background:none;border:0;color:#fff;cursor:pointer}
.lightbox .close svg{width:34px;height:34px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding-block:60px 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.foot-grid h4{color:#fff;font-size:.92rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px}
.foot-grid a{display:block;color:rgba(255,255,255,.7);padding:5px 0;font-size:.94rem}
.foot-grid a:hover{color:#fff}
.site-footer .brand img,.site-footer .brand svg{height:38px;margin-bottom:16px}
.foot-tag{font-size:.94rem;max-width:34ch}
.foot-mail{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;margin-top:14px}
.foot-mail svg{width:18px;height:18px;color:var(--red)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;font-size:.84rem;flex-wrap:wrap}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .hero .wrap{grid-template-columns:1fr;gap:32px}
  .grid-4,.products{grid-template-columns:repeat(2,1fr)}
  .grid-3,.cats,.timeline{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(3,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .nav,.header-cta .btn{display:none}
  .menu-toggle{display:block}
  .nav.mobile{display:flex;position:fixed;inset:74px 0 0;background:var(--ink);flex-direction:column;
    padding:28px var(--gut);gap:6px;font-size:1.2rem}
  .nav.mobile a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .grid-3,.cats,.timeline,.grid-4,.products{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
  .products{grid-template-columns:1fr 1fr}
  .grid-3,.cats,.timeline{grid-template-columns:1fr}
}