/* ============================================================
   TUOJING — shared site components (header, buttons, cards,
   badges, spec table, footer). Depends on tokens.css.
   ============================================================ */

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-text);
  color: var(--ink);
  background: var(--bg);
  line-height: var(--lh-text);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

h1,h2,h3,h4 { font-family: var(--font-display); margin: 0; line-height: var(--lh-tight); letter-spacing: -.01em; }
p { margin: 0; }

.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.eyebrow {
  font-family: var(--font-display); font-weight: 700; font-size: var(--t-sm);
  letter-spacing: .14em; text-transform: uppercase; color: var(--blue-600);
}
.eyebrow.on-dark { color: var(--sky-300); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-family: var(--font-display); font-weight: 700; font-size: var(--t-base);
  letter-spacing: .02em; padding: 14px 26px; border-radius: var(--r-sm);
  border: 1.5px solid transparent; cursor: pointer; transition: .18s ease;
  min-height: 48px; text-decoration: none;
}
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn-primary { background: var(--blue-500); color: #fff; }
.btn-primary:hover { background: var(--blue-600); text-decoration: none; transform: translateY(-1px); }
.btn-accent { background: var(--sky-400); color: var(--navy-900); }
.btn-accent:hover { background: var(--sky-300); text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-600); text-decoration: none; }
.btn-ghost.on-dark { color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost.on-dark:hover { border-color: var(--sky-400); color: var(--sky-300); }
.btn .arr { transition: transform .18s ease; }
.btn:hover .arr { transform: translateX(3px); }
[dir="rtl"] .btn:hover .arr { transform: translateX(-3px); }

/* ---------- Header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6,34,63,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.10);
}
.site-head .wrap { display: flex; align-items: center; gap: var(--s-6); height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 30px; }
.nav { display: flex; gap: var(--s-5); margin-inline-start: auto; }
.nav a { color: rgba(255,255,255,.82); font-size: var(--t-sm); font-weight: 600; letter-spacing: .01em; }
.nav a:hover { color: #fff; text-decoration: none; }
.head-cta { display: flex; align-items: center; gap: var(--s-4); }
.lang { display: flex; gap: 6px; align-items: center; }
.lang a { color: rgba(255,255,255,.6); font-size: var(--t-xs); font-weight: 700; letter-spacing: .08em; padding: 4px 6px; border-radius: 4px; }
.lang a[aria-current="true"] { color: var(--navy-900); background: var(--sky-400); }
@media (max-width: 900px){ .nav { display:none; } }

/* ---------- Badges (certifications / standards) ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 700; font-size: var(--t-xs);
  letter-spacing: .06em; text-transform: uppercase;
  padding: 6px 12px; border-radius: var(--r-sm);
  background: var(--ice-100); color: var(--blue-700);
  border: 1px solid var(--sky-200);
}
.badge.solid { background: var(--navy-700); color: #fff; border-color: transparent; }
.badge.outline { background: transparent; color: var(--ink-soft); border-color: var(--border-strong); }
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--sky-400); }

.cert-seal {
  display: grid; place-items: center; width: 84px; height: 84px; border-radius: 50%;
  background: var(--white); border: 2px solid var(--sky-200); box-shadow: var(--shadow-sm);
  font-family: var(--font-display); font-weight: 800; color: var(--navy-700);
  font-size: var(--t-md); letter-spacing: .02em; text-align: center; line-height: 1;
}
.cert-seal small { display:block; font-size: 9px; letter-spacing: .12em; color: var(--muted); margin-top: 4px; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  box-shadow: var(--shadow-sm); transition: .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--border-strong); transform: translateY(-2px); }

/* ---------- Spec table ---------- */
.spec {
  width: 100%; border-collapse: collapse; font-size: var(--t-sm);
}
.spec caption {
  text-align: var(--start); font-family: var(--font-display); font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em; font-size: var(--t-xs);
  color: var(--muted); padding-bottom: var(--s-3);
}
.spec th, .spec td { padding: 11px 14px; text-align: var(--start); overflow-wrap: anywhere; }
.spec thead th {
  background: var(--navy-700); color: #fff; font-family: var(--font-display);
  font-weight: 700; text-transform: uppercase; letter-spacing: .05em; font-size: var(--t-xs);
}
.spec tbody tr:nth-child(even) { background: var(--ice-50); }
.spec tbody td { border-bottom: 1px solid var(--border); color: var(--ink-soft); }
.spec tbody td:first-child { color: var(--ink); font-weight: 600; }

/* ---------- Footer ---------- */
.site-foot { background: var(--navy-900); color: rgba(255,255,255,.72); padding: var(--s-9) 0 var(--s-6); }
.site-foot a { color: rgba(255,255,255,.72); }
.site-foot a:hover { color: #fff; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: var(--s-7); }
.foot-grid h4 { color: #fff; font-size: var(--t-sm); text-transform: uppercase; letter-spacing: .1em; margin-bottom: var(--s-4); }
.foot-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: var(--t-sm); }
.foot-bottom { display: flex; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap;
  margin-top: var(--s-8); padding-top: var(--s-5); border-top: 1px solid rgba(255,255,255,.12);
  font-size: var(--t-xs); color: rgba(255,255,255,.5); }
@media (max-width: 760px){ .foot-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Section helpers ---------- */
section { padding-block: var(--s-9); }
.section-head { max-width: 720px; margin-bottom: var(--s-7); }
.section-head h2 { font-size: var(--t-xl); font-weight: 800; }
.section-head p { color: var(--ink-soft); font-size: var(--t-md); margin-top: var(--s-3); }
.dark { background: var(--navy-900); color: #fff; }
.dark .section-head p { color: rgba(255,255,255,.75); }
.dark .section-head h2 { color: #fff; }

/* ============================================================
   ADDITIONS — language switch, mobile nav, inner pages,
   data-driven catalog, forms, RTL. (Appended; base above intact.)
   ============================================================ */

/* ---------- Language switcher (buttons) ---------- */
.lang button[data-lang] {
  font-family: var(--font-text); cursor: pointer;
  background: transparent; border: 0;
  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 button[data-lang]:hover { color: #fff; }
.lang button[data-lang][aria-current="true"] { color: var(--navy-900); background: var(--sky-400); }

/* ---------- Mobile nav ---------- */
.nav-toggle {
  display: none; margin-inline-start: auto;
  width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--r-sm); background: transparent; cursor: pointer;
  color: #fff; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 20px; height: 2px; background: #fff; position: relative;
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after  { position: absolute; top: 6px; }
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .site-head .wrap { gap: var(--s-4); }
  .nav {
    position: absolute; top: 72px; inset-inline: 0; margin: 0;
    flex-direction: column; gap: 0; background: var(--navy-900);
    border-bottom: 1px solid rgba(255,255,255,.12);
    max-height: 0; overflow: hidden; transition: max-height .25s ease;
    display: flex;
  }
  .nav a { padding: 14px var(--gutter); border-top: 1px solid rgba(255,255,255,.08); }
  body.nav-open .nav { max-height: 60vh; }
  .head-cta .btn-accent { display: none; }   /* RFQ stays reachable via nav + hero */
}

/* ---------- Generic inner-page banner ---------- */
.page-banner { background: linear-gradient(180deg, var(--navy-900), var(--navy-800)); color:#fff;
  padding-block: var(--s-7) var(--s-8); }
.page-banner .crumb { display:flex; flex-wrap:wrap; gap:8px; align-items:center; font-size: var(--t-sm); color: rgba(255,255,255,.6); }
.page-banner .crumb a { color: rgba(255,255,255,.6); }
.page-banner .crumb a:hover { color:#fff; }
.page-banner .crumb a, .page-banner .crumb span[aria-current] { min-width:0; overflow-wrap:anywhere; }
.page-banner .crumb .sep { opacity:.5; }
.page-banner .crumb .sep::before { content:"\203A"; }            /* › flows with LTR reading */
[dir="rtl"] .page-banner .crumb .sep::before { content:"\2039"; } /* ‹ mirrors for RTL reading */
.page-banner h1 { font-size: var(--t-xl); font-weight:800; text-transform:uppercase; margin-top: 14px; }
.page-banner p { color: rgba(255,255,255,.8); max-width: 60ch; margin-top: 12px; }

/* FA / language note banner */
.lang-note { background: var(--warn); color: #2a1c00; text-align: center;
  font-size: var(--t-sm); font-weight: 600; padding: 10px var(--gutter); }

/* ---------- Prose / two-col content ---------- */
.prose p { color: var(--ink-soft); font-size: var(--t-base); margin-bottom: var(--s-4); max-width: 68ch; }
.prose p:last-child { margin-bottom: 0; }
.split { display:grid; grid-template-columns: 1.1fr .9fr; gap: var(--s-8); align-items:start; }
@media (max-width: 820px){ .split { grid-template-columns: 1fr; } }

.facts { list-style:none; margin:0; padding:0; display:grid; gap: var(--s-3); }
.facts li { display:grid; grid-template-columns: 22px 1fr; gap: var(--s-3); align-items:start;
  font-size: var(--t-sm); color: var(--ink-soft); }
.facts li::before { content:"✓"; color: var(--blue-600); font-weight: 800; }

.kpi-grid { display:grid; grid-template-columns: repeat(4,1fr); gap: var(--s-4); }
.kpi { background: var(--surface); border:1px solid var(--border); border-radius: var(--r-md); padding: var(--s-5); }
.kpi .n { font-family: var(--font-display); font-weight:800; font-size: var(--t-lg); color: var(--navy-700); line-height:1; }
.kpi .l { font-size: var(--t-xs); color: var(--muted); text-transform:uppercase; letter-spacing:.08em; margin-top:8px; }
@media (max-width: 720px){ .kpi-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Data-driven catalog ---------- */
.shop { display:grid; grid-template-columns: 248px 1fr; gap: var(--s-7); align-items:start; padding-block: var(--s-8); }
.rail { position: sticky; top: 88px; }
.rail h4 { font-family: var(--font-display); font-weight:700; text-transform:uppercase; letter-spacing:.08em;
  font-size: var(--t-xs); color: var(--muted); margin: 0 0 12px; }
.rail ul { list-style:none; margin:0 0 20px; padding:0; display:grid; gap:4px; }
.rail li a { display:flex; justify-content:space-between; gap:8px; padding:9px 12px; border-radius: var(--r-sm);
  color: var(--ink-soft); font-size: var(--t-sm); }
.rail li a:hover { background: var(--ice-50); text-decoration:none; color: var(--ink); }
.rail li a[aria-current="true"] { background: var(--ice-100); color: var(--blue-700); font-weight:600; }
.rail li a span:last-child { color: var(--muted); font-variant-numeric: tabular-nums; }
.rail-note { border:1px dashed var(--sky-200); border-radius: var(--r-md); padding: var(--s-4); background: var(--ice-50); }
.rail-note .badge { margin-bottom: 8px; }
.rail-note p { font-size: var(--t-xs); color: var(--ink-soft); margin:0; }

.cat-block { scroll-margin-top: 88px; margin-bottom: var(--s-8); }
.cat-block:last-child { margin-bottom: 0; }
.cat-block-head { display:flex; gap: var(--s-4); align-items:baseline; margin-bottom: var(--s-5);
  padding-bottom: var(--s-4); border-bottom: 2px solid var(--border); }
.cat-block-head .k { font-family: var(--font-display); font-weight:800; font-size: var(--t-md); color: var(--sky-400); }
.cat-block-head h3 { font-size: var(--t-lg); font-weight:800; }
.cat-block-head p { font-size: var(--t-sm); color: var(--muted); margin-top: 4px; }

.products { display:grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
@media (max-width: 980px){ .shop { grid-template-columns: 1fr; } .rail { position: static; } .products { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .products { grid-template-columns: 1fr; } }

.pcard { display:flex; flex-direction:column; overflow:hidden; }
.pcard .media { aspect-ratio: 16/10; position:relative; border-bottom:1px solid var(--border);
  display:grid; place-items:center;
  background: repeating-linear-gradient(135deg, var(--ice-50) 0 14px, var(--ice-100) 14px 28px); }
.pcard .media .silh { color: var(--sky-300); font-size: 2.6rem; font-family: var(--font-display); font-weight:800; }
.pcard .media.has-photo { background: var(--ice-100); }
.pcard .media .photo { width:100%; height:100%; object-fit:cover; display:block; }
.pcard .media .tag { position:absolute; top:12px; inset-inline-start:12px; }
.pcard .body { padding: var(--s-5); display:flex; flex-direction:column; gap: var(--s-3); flex:1; }
.pcard .cat-k { font-family: var(--font-display); font-weight:700; font-size: var(--t-xs); letter-spacing:.1em;
  text-transform:uppercase; color: var(--muted); }
.pcard h3 { font-size: var(--t-md); font-weight:700; }
.pcard .stds { display:flex; gap:6px; flex-wrap:wrap; }
.pcard .grades { font-size: var(--t-sm); color: var(--ink); }
.pcard .grades .gl { color: var(--muted); text-transform:uppercase; font-size: var(--t-xs); letter-spacing:.06em; font-weight:700; }
.pcard .pspec { border-top:1px solid var(--border); padding-top: var(--s-3); }
.pcard .pspec summary { cursor:pointer; font-family: var(--font-display); font-weight:700; font-size: var(--t-xs);
  letter-spacing:.06em; text-transform:uppercase; color: var(--blue-600); list-style:none; }
.pcard .pspec summary::-webkit-details-marker { display:none; }
.pcard .pspec summary::after { content:" +"; }
.pcard .pspec[open] summary::after { content:" −"; }
.pcard .pspec .spec { margin-top: var(--s-3); }
.pcard .foot { margin-top:auto; padding-top: var(--s-4); }
.pcard .foot .btn { width:100%; justify-content:center; padding:11px 14px; min-height:44px; font-size: var(--t-sm); }

/* ---------- Ports (logistics) ---------- */
.port-grid { display:grid; grid-template-columns: repeat(3,1fr); gap: var(--s-4); }
.port { padding: var(--s-5); }
.port .flag { font-size: var(--t-xs); font-family: var(--font-display); font-weight:800; letter-spacing:.1em;
  text-transform:uppercase; color: var(--sky-400); }
.port h3 { font-size: var(--t-md); font-weight:700; margin-top: 6px; }
.port p { font-size: var(--t-sm); color: var(--muted); margin-top: 6px; }
@media (max-width: 720px){ .port-grid { grid-template-columns: 1fr; } }

/* ---------- Shipment photo (trust) ---------- */
.ship-figure { margin:0; border-radius: var(--r-lg); overflow:hidden; border:1px solid var(--border);
  box-shadow: var(--shadow-md, 0 18px 40px -24px rgba(6,34,63,.35)); background: var(--ice-100); }
.ship-figure img { display:block; width:100%; height:clamp(220px, 42vw, 460px); object-fit:cover; }
.ship-figure figcaption { font-size: var(--t-sm); color: var(--muted); padding: var(--s-3) var(--s-5);
  background: var(--surface); }

/* ---------- Document list (quality) ---------- */
.doclist { display:grid; grid-template-columns: 1fr 1fr; gap: var(--s-4); list-style:none; margin:0; padding:0; }
.doclist li { background: var(--surface); border:1px solid var(--border); border-radius: var(--r-md);
  padding: var(--s-4) var(--s-5); display:grid; grid-template-columns: 28px 1fr; gap: var(--s-4); align-items:start; }
.doclist li .ic { color: var(--blue-600); font-weight:800; font-family: var(--font-display); }
.doclist li b { display:block; font-size: var(--t-base); color: var(--ink); }
.doclist li span { font-size: var(--t-sm); color: var(--muted); }
@media (max-width: 640px){ .doclist { grid-template-columns: 1fr; } }

/* ---------- Forms (RFQ) ---------- */
.form-wrap { display:grid; grid-template-columns: 1.2fr .8fr; gap: var(--s-8); align-items:start; }
@media (max-width: 820px){ .form-wrap { grid-template-columns: 1fr; } }
.rfq-form { display:grid; grid-template-columns: 1fr 1fr; gap: var(--s-4); }
.rfq-form .full { grid-column: 1 / -1; }
.field { display:flex; flex-direction:column; gap:6px; }
.field label { font-size: var(--t-xs); font-weight:700; text-transform:uppercase; letter-spacing:.06em; color: var(--muted); }
.field label .req { color: var(--blue-600); }
.field input, .field select, .field textarea {
  font-family: var(--font-text); font-size: var(--t-base); color: var(--ink);
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--r-sm);
  padding: 11px 13px; width: 100%;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline:none; border-color: var(--blue-500); box-shadow: var(--ring); }
.rfq-form .actions { grid-column:1/-1; display:flex; gap: var(--s-4); align-items:center; flex-wrap:wrap; }
.rfq-form .actions .btn { min-width: 200px; justify-content:center; }
.rfq-form .hint { font-size: var(--t-xs); color: var(--muted); }
.form-ok { background: var(--ice-100); border:1px solid var(--sky-200); border-radius: var(--r-md);
  padding: var(--s-6); }
.form-ok h3 { color: var(--navy-700); font-size: var(--t-md); }
.form-ok p { color: var(--ink-soft); font-size: var(--t-sm); margin-top: 8px; }

.contact-side { background: var(--navy-800); color:#fff; border-radius: var(--r-lg); padding: var(--s-6); }
.contact-side h3 { color:#fff; font-size: var(--t-md); }
.contact-side ul { list-style:none; margin: var(--s-4) 0 0; padding:0; display:grid; gap: var(--s-4); }
.contact-side li { font-size: var(--t-sm); color: rgba(255,255,255,.8); }
.contact-side li b { display:block; color:#fff; font-family: var(--font-display); letter-spacing:.04em; }
.contact-side a { color: var(--sky-300); }

/* ---------- RTL font swap for AR / FA ---------- */
html.lang-ar { --font-display: "Cairo", system-ui, sans-serif; --font-text: "Cairo", system-ui, sans-serif; }
html.lang-fa { --font-display: "Vazirmatn", system-ui, sans-serif; --font-text: "Vazirmatn", system-ui, sans-serif; }
html.lang-ar h1, html.lang-ar h2, html.lang-ar h3, html.lang-fa h1, html.lang-fa h2, html.lang-fa h3 { text-transform: none; letter-spacing: 0; }
[dir="rtl"] .crumb .arr, [dir="rtl"] .go { display:inline-block; }