/* ============================================================
   TUOJING — page-level components: hero, bento, catalog hub,
   category & product detail, standards hubs, FAQ, route, CTA.
   Depends on tokens.css + site.css. Logical props for RTL.
   ============================================================ */

/* ---- Skip link ---- */
.skip { position:absolute; inset-inline-start:-9999px; top:0; z-index:100;
  background:var(--sky-400); color:var(--navy-900); padding:10px 16px; border-radius:var(--r-sm);
  font-weight:700; }
.skip:focus { inset-inline-start:12px; top:12px; }

/* ---- Hero ---- */
.hero { position: relative; color:#fff; overflow:hidden;
  background:
    radial-gradient(120% 90% at 78% -10%, rgba(51,167,255,.22), transparent 55%),
    linear-gradient(140deg, var(--navy-900), var(--navy-800)); }
.hero::after { content:""; position:absolute; inset:0; z-index:1;
  background-image: url("/assets/graphics/bg-grid.svg"); background-size:48px 48px;
  -webkit-mask-image: radial-gradient(90% 70% at 70% 0%, #000, transparent 75%);
          mask-image: radial-gradient(90% 70% at 70% 0%, #000, transparent 75%); }
.hero .wrap { position:relative; z-index:2; display:grid; grid-template-columns:1.15fr .85fr;
  gap:var(--s-8); align-items:center; padding-block:var(--s-10) var(--s-9); }
.hero h1 { font-size:clamp(2.6rem, 6vw, var(--t-3xl)); font-weight:800; text-transform:uppercase;
  letter-spacing:-.015em; }
.hero h1 .em { color:var(--sky-400); }
.hero .lede { font-size:var(--t-md); color:rgba(255,255,255,.85); max-width:48ch; margin-top:var(--s-5); }
.hero-cta { display:flex; gap:var(--s-4); margin-top:var(--s-7); flex-wrap:wrap; }
.hero-glyph { display:grid; place-items:center; color:var(--sky-400); }
.hero-glyph svg { width:min(320px,80%); opacity:.5; filter:drop-shadow(0 24px 48px rgba(0,0,0,.4)); }
.metrics { position:relative; z-index:2; border-top:1px solid rgba(255,255,255,.12);
  display:grid; grid-template-columns:repeat(4,1fr); gap:var(--s-6); padding-block:var(--s-5); }
.metrics .stat .n { font-family:var(--font-display); font-weight:800; font-size:var(--t-lg); color:#fff; line-height:1; }
.metrics .stat .l { font-size:var(--t-xs); color:rgba(255,255,255,.62); text-transform:uppercase;
  letter-spacing:.1em; margin-top:8px; }
html.lang-ar .metrics .stat .l, html.lang-fa .metrics .stat .l { text-transform:none; letter-spacing:0; }
@media (max-width:880px){ .hero .wrap { grid-template-columns:1fr; } .hero-glyph { display:none; }
  .metrics { grid-template-columns:1fr 1fr; gap:var(--s-5); } }

/* ---- Bento (how we work) ---- */
.bento { display:grid; grid-template-columns:repeat(3,1fr); grid-auto-rows:1fr; gap:var(--s-4); }
.bento .b { padding:var(--s-6); display:flex; flex-direction:column; gap:var(--s-3); }
.bento .b .ico { width:44px; height:44px; border-radius:var(--r-sm); display:grid; place-items:center;
  background:var(--ice-100); color:var(--blue-600); margin-bottom:var(--s-2); font-weight:800;
  font-family:var(--font-display); }
.bento .b h3 { font-size:var(--t-md); font-weight:700; }
.bento .b p { color:var(--ink-soft); font-size:var(--t-sm); }
.bento .feature { grid-column:span 2; grid-row:span 2; background:var(--navy-700); color:#fff;
  background-image:radial-gradient(100% 80% at 100% 0%, rgba(51,167,255,.28), transparent 60%); }
.bento .feature h3 { font-size:var(--t-lg); } .bento .feature p { color:rgba(255,255,255,.82); font-size:var(--t-base); }
.bento .feature .ico { background:rgba(255,255,255,.12); color:var(--sky-300); }
@media (max-width:820px){ .bento { grid-template-columns:1fr 1fr; } .bento .feature { grid-column:span 2; grid-row:auto; } }
@media (max-width:520px){ .bento { grid-template-columns:1fr; } .bento .feature { grid-column:auto; } }

/* ---- Category bento (what we supply / catalog hub) ---- */
.cat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--s-4); }
.cat { padding:var(--s-5); display:flex; flex-direction:column; gap:var(--s-3); min-height:200px; }
.cat .glyph { width:48px; height:48px; color:var(--sky-400); }
.cat .glyph svg { width:100%; height:100%; }
.cat .k { font-family:var(--font-display); font-weight:800; font-size:var(--t-xs); letter-spacing:.12em;
  color:var(--muted); text-transform:uppercase; }
.cat h3 { font-size:var(--t-md); font-weight:700; }
.cat p { font-size:var(--t-sm); color:var(--muted); }
.cat .go { margin-top:auto; font-family:var(--font-display); font-weight:700; font-size:var(--t-sm);
  color:var(--blue-600); display:inline-flex; gap:6px; }
.cat .count { color:var(--muted); font-variant-numeric:tabular-nums; font-size:var(--t-xs); }
@media (max-width:880px){ .cat-grid { grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .cat-grid { grid-template-columns:1fr; } }

/* ---- Certs / standards strip ---- */
.cert-row { display:flex; flex-wrap:wrap; gap:var(--s-6); align-items:center; }
.std-strip { display:flex; flex-wrap:wrap; gap:var(--s-3); }

/* ---- Logistics route ---- */
.logi { display:grid; grid-template-columns:1fr 1fr; gap:var(--s-8); align-items:center; }
.route { background:var(--navy-800); border:1px solid rgba(255,255,255,.12); border-radius:var(--r-md); padding:var(--s-6); }
.route ol { list-style:none; margin:0; padding:0; display:grid; gap:var(--s-4); }
.route li { display:grid; grid-template-columns:34px 1fr; gap:var(--s-4); align-items:start; }
.route .step { width:34px; height:34px; border-radius:50%; display:grid; place-items:center;
  background:var(--sky-400); color:var(--navy-900); font-family:var(--font-display); font-weight:800; }
.route h4 { color:#fff; font-size:var(--t-base); } .route p { color:rgba(255,255,255,.72); font-size:var(--t-sm); }
.route-map { width:100%; height:auto; border-radius:var(--r-md); border:1px solid rgba(255,255,255,.12);
  background:var(--navy-800); padding:var(--s-4); }
@media (max-width:820px){ .logi { grid-template-columns:1fr; } }

/* ---- CTA band ---- */
.cta-band { background:linear-gradient(110deg, var(--blue-600), var(--sky-400)); color:var(--navy-900);
  border-radius:var(--r-lg); padding:var(--s-9); text-align:center; }
.cta-band h2 { font-size:var(--t-xl); font-weight:800; text-transform:uppercase; }
html.lang-ar .cta-band h2, html.lang-fa .cta-band h2 { text-transform:none; }
.cta-band p { font-size:var(--t-md); margin:var(--s-3) auto var(--s-6); max-width:52ch; color:rgba(6,34,63,.82); }

/* ---- Standards hub ---- */
.std-hub-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:var(--s-3); }
.std-chip { display:flex; flex-direction:column; gap:6px; padding:var(--s-4) var(--s-5); }
.std-chip .name { font-family:var(--font-display); font-weight:800; color:var(--navy-700); font-size:var(--t-base); }
.std-chip .cnt { font-size:var(--t-xs); color:var(--muted); text-transform:uppercase; letter-spacing:.08em; }

/* ---- Product detail ---- */
.pd { display:grid; grid-template-columns:1fr 1.1fr; gap:var(--s-8); align-items:start; padding-block:var(--s-8); }
.pd-media { aspect-ratio:3/2; border-radius:var(--r-md); border:1px solid var(--border); overflow:hidden;
  display:grid; place-items:center; position:relative; color:var(--sky-300);
  background:var(--navy-800); background-image:url("/assets/graphics/bg-grid.svg"); background-size:48px; }
.pd-media svg { width:42%; height:42%; opacity:.9; color:#fff; }
.pd-media.has-photo { background:var(--ice-100); background-image:none; }
.pd-media .photo { width:100%; height:100%; object-fit:cover; display:block; }
.pd-media .ph-note { position:absolute; inset-block-end:10px; inset-inline-start:0; inset-inline-end:0;
  text-align:center; font-size:var(--t-xs); color:rgba(255,255,255,.5); letter-spacing:.04em; }
.pd-info h1 { font-size:var(--t-xl); font-weight:800; letter-spacing:-.01em; }
.pd-info .sub { color:var(--muted); font-size:var(--t-sm); margin-top:6px; }
.pd-info .stds { display:flex; gap:6px; flex-wrap:wrap; margin-top:var(--s-4); }
.pd-info .lede { color:var(--ink-soft); font-size:var(--t-base); margin-top:var(--s-5); max-width:60ch; }
.pd-info .pd-cta { display:flex; gap:var(--s-4); margin-top:var(--s-6); flex-wrap:wrap; }
.pd-spec { margin-top:var(--s-7); }
.related { display:flex; gap:var(--s-3); flex-wrap:wrap; }
.related a { font-size:var(--t-sm); }
@media (max-width:820px){ .pd { grid-template-columns:1fr; } }

/* sibling product list on category/product pages */
.prod-list { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--s-4); }
@media (max-width:980px){ .prod-list { grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .prod-list { grid-template-columns:1fr; } }

/* ---- FAQ ---- */
.faq-list { display:grid; gap:var(--s-3); max-width:820px; }
.faq-item { background:var(--surface); border:1px solid var(--border); border-radius:var(--r-md); padding:var(--s-5) var(--s-6); }
.faq-item summary { cursor:pointer; font-family:var(--font-display); font-weight:700; font-size:var(--t-base);
  color:var(--ink); list-style:none; display:flex; justify-content:space-between; gap:var(--s-4); align-items:center; }
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary::after { content:"+"; color:var(--blue-600); font-size:var(--t-md); }
.faq-item[open] summary::after { content:"\2212"; }
.faq-item p { color:var(--ink-soft); font-size:var(--t-sm); margin-top:var(--s-4); max-width:68ch; }

/* ---- Language switch as links ---- */
.lang a { color:rgba(255,255,255,.6); font-size:var(--t-xs); font-weight:700; letter-spacing:.08em;
  padding:4px 7px; border-radius:4px; line-height:1; }
.lang a:hover { color:#fff; text-decoration:none; }
.lang a[aria-current="true"] { color:var(--navy-900); background:var(--sky-400); }

/* ---- Reveal animations (transform/opacity only) ---- */
/* Gated behind html.js so content stays visible without JavaScript. */
.reveal { transition:opacity .5s cubic-bezier(.16,1,.3,1), transform .5s cubic-bezier(.16,1,.3,1); }
html.js .reveal { opacity:0; transform:translateY(16px); }
html.js .reveal.is-in { opacity:1; transform:none; }
.pcard, .cat, .bento .b, .faq-item, .kpi, .port, .std-chip { transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.pcard .media .photo, .pd-media svg { transition:transform .25s ease; }
.pcard:hover .media .photo { transform:scale(1.04); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity:1; transform:none; transition:none; }
  *, *::before, *::after { animation-duration:.001ms !important; transition-duration:.001ms !important; }
  .route-line { stroke-dasharray:none; }
}

/* visually-hidden helper */
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip:rect(0,0,0,0); white-space:nowrap; border:0; }