/* ============================================================
   Southern Trading Solutions — shared stylesheet
   Build Chat 1 · tokens carried forward from STS_v33_div-fixed
   Font: Josefin Sans 300/400/600/700 · Brand blue: #003087
   ============================================================ */

:root{
  --blue:#003087;
  --blue-dark:#00215e;
  --blue-deep:#001540;
  --blue-light:#e8eef8;
  --blue-tint:#f2f5fb;
  --white:#ffffff;
  --offwhite:#f7f8fc;
  --text:#0d1b35;
  --muted:#3d4f66;
  --border:#dde3ef;
  --font:'Josefin Sans',sans-serif;
  --radius:8px;
  --wrap:1160px;
  --shadow:0 10px 30px rgba(0,21,64,.10);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--white);
  line-height:1.65;
  font-size:17px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4.2vw,3rem);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,3vw,2.15rem);font-weight:700}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 5%}
.section{padding:88px 0}
.section-tint{background:var(--offwhite)}
.eyebrow{
  display:block;font-size:.8rem;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:var(--blue);margin-bottom:14px;
}
.section-sub{color:var(--muted);max-width:640px;margin:0 auto 44px}
.center{text-align:center}

/* ---------- accessibility ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;
  padding:10px 18px;z-index:200;border-radius:0 0 6px 0;
}
.skip-link:focus{left:0}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-family:var(--font);font-weight:600;font-size:1rem;
  padding:14px 28px 12px;border-radius:6px;text-decoration:none;
  border:2px solid var(--blue);cursor:pointer;line-height:1.2;
  transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark)}
.btn-secondary{background:transparent;color:var(--blue)}
.btn-secondary:hover{background:var(--blue-light)}
.btn-inverse{background:#fff;color:var(--blue);border-color:#fff}
.btn-inverse:hover{background:var(--blue-light);border-color:var(--blue-light)}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--white);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:76px;
}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{height:42px;width:auto}
.site-nav{display:flex;align-items:center;gap:26px}
.site-nav ul{
  display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0;
}
.site-nav a:not(.btn){
  color:var(--text);text-decoration:none;font-weight:400;font-size:.98rem;
  padding:6px 0;border-bottom:2px solid transparent;
}
.site-nav a:not(.btn):hover{color:var(--blue)}
.site-nav a[aria-current="page"]{color:var(--blue);font-weight:600;border-bottom-color:var(--blue)}
.nav-cta{padding:11px 20px 9px;font-size:.95rem}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-toggle-label{display:none}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,var(--white) 0%,var(--blue-tint) 100%);padding:76px 0 84px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero-callout{
  color:var(--blue);font-weight:600;font-size:1.15rem;
  border-left:4px solid var(--blue);padding-left:16px;margin:22px 0 14px;
}
.hero-sub{color:var(--muted);font-size:1.08rem;font-weight:300;max-width:520px}
.hero-media{margin:0;position:relative}
.hero-media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.hero-media::after{
  content:"";position:absolute;inset:18px -18px -18px 18px;
  border:2px solid var(--blue-light);border-radius:var(--radius);z-index:-1;
}

/* ---------- proof tile band (house pattern) ---------- */
.tile-band{background:var(--white);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:54px 0}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.band-tile{
  text-align:center;padding:10px 18px;
  border-left:1px solid var(--border);
}
.band-tile:first-child{border-left:none}
.band-value{
  display:block;color:var(--blue);font-weight:700;
  font-size:clamp(2rem,3.6vw,2.9rem);line-height:1.05;letter-spacing:-.01em;
}
.band-label{
  display:block;color:var(--muted);font-size:.92rem;font-weight:400;
  margin-top:8px;letter-spacing:.02em;
}

/* ---------- service tiles ---------- */
.tiles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:10px}
.tile{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:34px 30px 30px;display:flex;flex-direction:column;
  transition:transform .18s,box-shadow .18s;
}
.tile:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tile h3{color:var(--blue);margin-bottom:.6em}
.tile p{color:var(--text);font-size:.99rem;flex:1}
.tile-link{
  font-weight:600;text-decoration:none;color:var(--blue);margin-top:18px;
  display:inline-flex;align-items:center;gap:8px;
}
.tile-link:hover{color:var(--blue-dark)}
.tile-link .arrow{transition:transform .18s;display:inline-block}
.tile-link:hover .arrow{transform:translateX(4px)}
.tile-highlight{
  border:2px solid var(--blue);position:relative;
  box-shadow:0 14px 34px rgba(0,48,135,.14);
}
.tile-highlight::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;
  background:var(--blue);border-radius:var(--radius) var(--radius) 0 0;
}

/* ---------- dark emphasis band (house pattern) ---------- */
.dark-band{background:var(--blue-deep);color:#fff;padding:96px 0}
.dark-band h2{color:#fff;max-width:760px}
.dark-band p{color:var(--blue-light);max-width:760px;font-size:1.04rem}
.dark-band p:last-child{margin-bottom:0}

/* ---------- integrations strip (logo-ready slots) ---------- */
.integrations{padding:64px 0;background:var(--white)}
.logo-slots{
  display:flex;flex-wrap:wrap;justify-content:center;gap:18px;
  list-style:none;margin:0;padding:0;
}
.logo-slot{
  min-width:170px;height:60px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:6px;background:var(--offwhite);
  color:var(--muted);font-weight:600;font-size:1.02rem;letter-spacing:.02em;
  padding:0 22px;
}
.logo-slot img{max-height:34px;width:auto}

/* ---------- horizontal process bar (house pattern — used from Build Chat 2 on) ---------- */
.process-bar{
  display:grid;grid-template-columns:repeat(5,1fr);gap:22px;
  list-style:none;margin:34px 0 0;padding:0;counter-reset:step;
}
.process-bar.steps-4{grid-template-columns:repeat(4,1fr)}
.process-step{position:relative;padding-top:18px}
.process-step::before{
  counter-increment:step;content:counter(step);
  display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;
  background:var(--blue);color:#fff;font-weight:700;font-size:1.15rem;
  margin-bottom:16px;position:relative;z-index:2;
}
.process-step::after{
  content:"";position:absolute;top:41px;left:56px;right:-22px;height:2px;
  background:var(--border);z-index:1;
}
.process-step:last-child::after{display:none}
.process-step h4{font-size:1.05rem;font-weight:600;color:var(--blue);margin-bottom:.4em}
.process-step p{font-size:.93rem;color:var(--muted);margin:0}

/* ---------- footer ---------- */
.site-footer{background:var(--blue-deep);color:var(--blue-light);padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:44px;align-items:start;
}
.footer-brand img{height:38px;width:auto;margin-bottom:16px}
.footer-tagline{
  font-size:.82rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--blue-light);
}
.footer-heading{
  font-size:.8rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:#fff;margin:0 0 14px;
}
.footer-nap{font-style:normal;line-height:1.7}
.footer-nap strong{color:#fff}
.footer-nav ul{list-style:none;margin:0;padding:0}
.footer-nav li{margin-bottom:9px}
.footer-nav a{color:var(--blue-light);text-decoration:none;font-size:.97rem}
.footer-nav a:hover{color:#fff;text-decoration:underline}
.footer-cta p{font-size:.97rem}
.footer-legal{
  border-top:1px solid rgba(232,238,248,.18);margin-top:52px;padding:22px 5%;
  font-size:.88rem;color:var(--blue-light);
}
.footer-legal .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:0}

/* ---------- stub pages ---------- */
.stub{padding:120px 0 140px;background:var(--offwhite);min-height:52vh}
.stub-card{
  max-width:640px;margin:0 auto;background:var(--white);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:56px 48px;text-align:center;box-shadow:var(--shadow);
}
.stub-card h1{font-size:clamp(1.7rem,3.4vw,2.3rem)}
.stub-note{color:var(--muted);margin:14px 0 30px}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media::after{display:none}
  .band-grid{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .band-tile:nth-child(3){border-left:none}
  .tiles-grid{grid-template-columns:1fr;max-width:560px;margin-left:auto;margin-right:auto}
  .process-bar,.process-bar.steps-4{grid-template-columns:1fr;gap:30px}
  .process-step::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}

  /* mobile nav (checkbox toggle, no JS) */
  .nav-toggle-label{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;padding:10px;cursor:pointer;border-radius:6px;
  }
  .nav-toggle-label span,
  .nav-toggle-label::before,
  .nav-toggle-label::after{
    content:"";display:block;height:2px;background:var(--blue);border-radius:2px;
  }
  .site-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--white);border-bottom:1px solid var(--border);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 5% 22px;
    box-shadow:var(--shadow);
  }
  .nav-toggle:checked ~ .site-nav{display:flex}
  .nav-toggle:focus-visible + .nav-toggle-label{outline:3px solid var(--blue);outline-offset:2px}
  .site-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .site-nav ul a:not(.btn){display:block;padding:13px 4px;border-bottom:1px solid var(--border)}
  .site-nav a[aria-current="page"]{border-bottom-color:var(--border)}
  .nav-cta{margin-top:16px;text-align:center}
}
@media (max-width:640px){
  .section{padding:64px 0}
  .hero{padding:52px 0 60px}
  .band-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-row .btn{width:100%;text-align:center}
}

/* ============================================================
   Build Chat 2 additions — kitting-assembly + warehousing
   New house patterns: solo hero, prose column, checklists,
   vignettes, testimonials, portal features, FAQ expandables,
   spec strip, photo grid, quote intake form
   ============================================================ */

/* ---------- solo hero (service pages, text-led) ---------- */
.hero-solo{max-width:900px}
.hero-lede{color:var(--muted);font-size:1.13rem;font-weight:300;max-width:780px;margin-top:18px}

/* ---------- prose column ---------- */
.prose{max-width:820px}
.prose p{font-size:1.02rem}
.prose p:last-child{margin-bottom:0}

/* ---------- two-column checklist (house pattern) ---------- */
.checklist-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px 48px;margin-top:26px;max-width:980px}
.checklist h3{color:var(--blue);margin-bottom:.7em}
.checklist ul{list-style:none;margin:0;padding:0}
.checklist li{position:relative;padding:10px 0 10px 32px;border-bottom:1px solid var(--border);font-size:.99rem}
.checklist li:last-child{border-bottom:none}
.checklist li::before{content:"\2713";position:absolute;left:2px;top:10px;color:var(--blue);font-weight:700}
.checklist em{color:var(--muted)}

/* ---------- proof sections: intro, vignettes, throughput ---------- */
.proof-intro{font-style:italic;color:var(--muted);margin:-8px 0 36px}
.vignette{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 30px 26px;box-shadow:0 6px 18px rgba(0,21,64,.06);
}
.vignette p{font-size:.99rem}
.vignette p:last-child{margin-bottom:0}
.vignette-flagship{border-left:6px solid var(--blue);padding:38px 42px 34px;margin-bottom:26px}
.vignette-eyebrow{
  display:block;font-size:.75rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--blue);margin-bottom:12px;
}
.vignette-stat{
  font-weight:700;color:var(--blue);letter-spacing:-.01em;
  font-size:clamp(1.35rem,2.6vw,1.9rem);line-height:1.25;margin:0 0 .55em;
}
.vignette-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.throughput-line{
  border-left:4px solid var(--blue);padding:6px 0 6px 20px;margin:40px 0 0;
  font-weight:600;color:var(--blue-dark);font-size:1.08rem;max-width:780px;
}

/* ---------- testimonial cards (house pattern) ---------- */
.testimonial-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:44px}
.testimonial-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.testimonial{
  margin:0;background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);padding:30px 30px 26px;box-shadow:0 6px 18px rgba(0,21,64,.06);
  display:flex;flex-direction:column;
}
.testimonial::before{
  content:"\201C";font-size:3.4rem;font-weight:700;line-height:.5;
  color:var(--blue);opacity:.28;display:block;margin:8px 0 14px;
}
.testimonial blockquote{margin:0;flex:1}
.testimonial blockquote p{font-size:.98rem;margin-bottom:0}
.testimonial figcaption{margin-top:18px;font-weight:600;color:var(--blue);font-size:.92rem}

/* ---------- proof / gallery imagery ---------- */
.proof-photo{margin:34px auto 0;max-width:900px}
.proof-photo img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow)}
.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:38px}
.photo-grid figure{margin:0}
.photo-grid img{
  width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;
  border-radius:var(--radius);box-shadow:0 8px 22px rgba(0,21,64,.08);
}

/* ---------- spec strip (compact facility data row) ---------- */
.spec-strip{
  background:var(--white);border:1px solid var(--border);border-radius:6px;
  padding:16px 24px;margin:10px 0 0;max-width:980px;
  color:var(--muted);font-size:.95rem;line-height:1.9;
}

/* ---------- portal feature list ---------- */
.portal-features{list-style:none;margin:0 0 1.2em;padding:0}
.portal-features li{position:relative;padding:14px 0 14px 34px;border-bottom:1px solid var(--border);font-size:1rem}
.portal-features li:last-child{border-bottom:none}
.portal-features li::before{
  content:"";position:absolute;left:2px;top:23px;width:11px;height:11px;
  background:var(--blue);border-radius:3px;
}
.portal-features strong{color:var(--blue-dark)}

/* ---------- inline CTA line ---------- */
.inline-cta{margin-top:26px;font-size:1.04rem}
.inline-cta a{font-weight:600}

/* ---------- FAQ expandables (full Q&A in the DOM for FAQPage schema) ---------- */
.faq-list{max-width:880px;margin-top:6px;border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item summary{
  cursor:pointer;list-style:none;position:relative;
  padding:20px 46px 20px 0;font-weight:600;font-size:1.06rem;line-height:1.4;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--blue)}
.faq-item summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:1.6rem;font-weight:300;color:var(--blue);line-height:1;
}
.faq-item[open] summary{color:var(--blue)}
.faq-item[open] summary::after{content:"\2212"}
.faq-answer{padding:0 0 24px;max-width:800px}
.faq-answer p{margin:0 0 .8em}
.faq-answer p:last-child{margin-bottom:0}

/* ---------- quote intake (house pattern) ---------- */
.quote-section{background:var(--blue-light);padding:92px 0}
.quote-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);max-width:880px;margin:0 auto;padding:54px 54px 46px;
}
.quote-card h2{text-align:center}
.quote-sub{text-align:center;color:var(--muted);max-width:600px;margin:0 auto 38px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px}
.field{display:flex;flex-direction:column}
.field-full{grid-column:1/-1}
.field label{font-weight:600;font-size:.92rem;margin-bottom:7px;color:var(--text)}
.field .optional{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{
  font-family:var(--font);font-size:1rem;color:var(--text);
  padding:12px 14px;border:1px solid var(--border);border-radius:6px;
  background:var(--white);width:100%;
}
.field textarea{resize:vertical;min-height:120px}
.form-submit{display:block;width:100%;margin-top:28px}
.form-note{text-align:center;color:var(--muted);font-size:.92rem;margin:16px 0 0}

/* ---------- Build Chat 2 responsive ---------- */
@media (max-width:980px){
  .checklist-cols{grid-template-columns:1fr;gap:30px}
  .vignette-grid{grid-template-columns:1fr}
  .testimonial-grid,.testimonial-grid.cols-3{grid-template-columns:1fr}
  .vignette-flagship{padding:30px 26px 26px}
}
@media (max-width:640px){
  .photo-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .quote-card{padding:38px 24px 34px}
  .quote-section{padding:64px 0}
}

/* ============================================================
   Build Chat 3 additions — fulfillment + fba-prep
   New patterns only where no Build Chat 2 pattern existed:
   channel grid (four titled channel blocks, fulfillment §3),
   proof pair (single vignette beside a single testimonial, FBA §9)
   ============================================================ */

/* ---------- channel grid (titled service-channel blocks) ---------- */
.channel-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px;max-width:980px}
.channel{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 30px 24px;box-shadow:0 6px 18px rgba(0,21,64,.06);
}
.channel h3{color:var(--blue);margin-bottom:.55em}
.channel p{font-size:.99rem;margin:0}

/* ---------- proof pair (vignette beside a testimonial card) ---------- */
.proof-pair{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:stretch}
.proof-pair .testimonial{margin-top:0}

/* ---------- Build Chat 3 responsive ---------- */
@media (max-width:980px){
  .channel-grid,.proof-pair{grid-template-columns:1fr}
}