/* ============================================================
   Sinofo — Frozen Food Export · US foodservice edition
   Roboto throughout · generous whitespace · left-aligned body,
   centered headings · 16px min body · 48px min touch targets
   ============================================================ */
:root{
  --red:#C8322B;         /* appetite / fry-red accent */
  --red-dk:#A5241E;
  --ink:#1A1A1A;
  --ink-2:#454545;
  --muted:#6E6E6E;
  --line:#E6E6E6;
  --line-2:#F0F0F0;
  --paper:#FFFFFF;
  --snow:#FAFAFA;
  --chip:#F4F4F4;
  --blue:#12558C;        /* cold-chain / trust blue */
  --gold:#E8A33D;        /* best-seller marker */
  --ok:#1F7A3D;
  --shadow:0 20px 50px -28px rgba(0,0,0,.32);
  --shadow-sm:0 8px 22px -14px rgba(0,0,0,.28);
  --r:14px;
  --r-sm:10px;
  --maxw:1240px;
  --sans:"Roboto","Helvetica Neue",Arial,system-ui,sans-serif;
  --cond:"Roboto Condensed","Roboto",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  font-size:16px;
  color:var(--ink);
  background:var(--paper);
  line-height:1.7;
  text-align:left;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:min(var(--maxw),90vw);margin:0 auto}

/* Headings centered, body left-aligned */
h1,h2{text-align:center}
h3,h4{text-align:left}

/* ---- Buttons (48px min touch target) ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:var(--sans);font-weight:700;font-size:1rem;letter-spacing:.01em;
  min-height:48px;padding:.7em 1.6em;border-radius:8px;border:2px solid transparent;
  cursor:pointer;transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dk);transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(200,50,43,.6)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:#fff;color:var(--ink)}
.btn-block{width:100%}
.btn-lg{font-size:1.05rem;padding:.85em 2em;min-height:54px}

/* ---- Topbar ---- */
.topbar{background:var(--ink);color:#EDEDED;font-size:.85rem}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:42px;gap:1rem}
.topbar-inner span{color:#CFCFCF}
.topbar-link{color:#fff;font-weight:700}
.topbar-link:hover{color:var(--gold)}

/* ---- Nav ---- */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:.25s}
.nav.scrolled{background:#fff;border-color:var(--line);box-shadow:0 4px 20px -16px rgba(0,0,0,.5)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px}
.brand img{height:40px;width:auto}
.nav-links{display:flex;align-items:center;gap:1.9rem}
.nav-links a{font-weight:500;font-size:1rem;color:var(--ink-2);position:relative;transition:.2s}
.nav-links a:not(.nav-cta):hover{color:var(--red)}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--red);transition:.22s}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{min-height:44px;padding:.5em 1.3em}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:10px;min-height:48px;min-width:48px;align-items:center;justify-content:center}
.nav-burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* ---- Hero ---- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:#241211;z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background-image:url("assets/products/fries_hero.jpg");background-size:cover;background-position:center;opacity:.9}
.hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(100deg,rgba(15,10,9,.9) 0%,rgba(15,10,9,.62) 40%,rgba(15,10,9,.2) 78%,rgba(15,10,9,.05) 100%)}
.hero-inner{position:relative;z-index:2;padding:6rem 0}
.hero-copy{max-width:680px;text-align:left}
.eyebrow{display:inline-block;font-weight:700;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:1.1rem}
.eyebrow.light{color:#F2C98A}
.hero h1{text-align:left;font-weight:900;font-size:clamp(2.4rem,5.4vw,4rem);line-height:1.06;letter-spacing:-.01em;margin-bottom:1.4rem}
.hero-sub{font-size:clamp(1.05rem,1.5vw,1.25rem);color:rgba(255,255,255,.9);max-width:560px;margin-bottom:2.2rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1.4rem}
.hero-trust{font-size:.85rem;color:rgba(255,255,255,.72);margin-bottom:2.4rem;letter-spacing:.01em}
.hero-stats{display:flex;gap:2.6rem;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-family:var(--cond);font-size:2.3rem;font-weight:700;color:var(--gold);line-height:1}
.hero-stats span{font-size:.9rem;color:rgba(255,255,255,.78);margin-top:.2rem}

/* ---- Brand strip ---- */
.brands-strip{padding:3rem 0;border-bottom:1px solid var(--line)}
.brands-label{text-align:center;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:1.6rem;font-weight:700}
.brands-row{display:flex;justify-content:center;align-items:center;gap:clamp(1.5rem,4vw,3.5rem);flex-wrap:wrap}
.brands-row span{font-family:var(--cond);font-size:clamp(1.1rem,2vw,1.5rem);font-weight:700;color:var(--ink-2);opacity:.55;letter-spacing:.02em}

/* ---- Sections: generous whitespace (40%+) ---- */
.section{padding:7rem 0}
.section-alt{background:var(--snow)}
.section-head{max-width:760px;margin:0 auto 3.5rem;text-align:center}
.section-head h2{font-weight:900;font-size:clamp(1.9rem,3.6vw,2.7rem);line-height:1.15;letter-spacing:-.01em}
.section-head .eyebrow{margin-bottom:.8rem;color:var(--red)}
.section-lead{margin-top:1rem;color:var(--muted);font-size:1.05rem}

/* ---- Feature grid ---- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem}
.feature{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:2.2rem}
.section-alt .feature{background:#fff}
.feature-ic{font-size:2rem;margin-bottom:1rem;line-height:1}
.feature h3{font-size:1.25rem;font-weight:700;margin-bottom:.6rem;line-height:1.2}
.feature p{color:var(--ink-2);font-size:1rem}

/* ---- Category cards ---- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.6rem}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;cursor:pointer;transition:transform .22s ease, box-shadow .22s ease}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.cat-card .cat-imgwrap{aspect-ratio:4/3;background:#fff;overflow:hidden}
.cat-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.cat-card:hover img{transform:scale(1.05)}
.cat-body{padding:1.4rem}
.cat-body h3{font-size:1.3rem;font-weight:700;line-height:1.15;margin-bottom:.3rem}
.cat-body .cat-tagline{color:var(--muted);font-size:.92rem;margin-bottom:.9rem}
.cat-count{display:inline-flex;align-items:center;gap:.4em;font-size:.85rem;font-weight:700;color:var(--red);background:var(--chip);padding:.35em .8em;border-radius:999px}

/* ---- Best sellers ---- */
.best-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.5rem}

/* ---- Product card (shared by best + catalog) ---- */
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;cursor:pointer;display:flex;flex-direction:column;transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#DADADA}
.pcard-img{position:relative;aspect-ratio:1/1;background:#fff;overflow:hidden}
.pcard-img img{width:100%;height:100%;object-fit:cover}
.pcard-badges{position:absolute;top:.6rem;left:.6rem;display:flex;flex-direction:column;gap:.35rem;align-items:flex-start}
.badge{font-size:.68rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;padding:.28em .6em;border-radius:5px;color:#fff}
.badge-best{background:var(--gold)}
.badge-oem{background:var(--blue)}
.badge-coat{background:#fff;color:var(--ink-2);border:1px solid var(--line)}
.pcard-brand{position:absolute;top:.6rem;right:.6rem;font-size:.68rem;font-weight:700;background:rgba(26,26,26,.82);color:#fff;padding:.28em .6em;border-radius:5px}
.pcard-body{padding:1.1rem 1.1rem 1.2rem;display:flex;flex-direction:column;flex:1}
.pcard-code{font-size:.72rem;font-weight:700;letter-spacing:.05em;color:var(--muted);text-transform:uppercase;margin-bottom:.3rem}
.pcard-name{font-size:1.02rem;font-weight:700;line-height:1.25;color:var(--ink)}
.pcard-spec{font-size:.85rem;color:var(--muted);margin-top:.45rem}
.pcard-cta{margin-top:auto;padding-top:1rem;display:flex;gap:.6rem}
.pcard-btn{flex:1;min-height:48px;font-size:.85rem;font-weight:700;border-radius:7px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:.18s;display:inline-flex;align-items:center;justify-content:center}
.pcard-btn:hover{border-color:var(--red);color:var(--red)}
.pcard-btn.primary{background:var(--red);color:#fff;border-color:var(--red)}
.pcard-btn.primary:hover{background:var(--red-dk);color:#fff}

/* ---- Catalog layout: sidebar + grid ---- */
.catalog-layout{display:grid;grid-template-columns:250px 1fr;gap:2.4rem;align-items:start}
.filter-rail{position:sticky;top:96px}
.filter-toggle{display:none;width:100%;min-height:48px;font-weight:700;border:1.5px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-family:var(--sans);font-size:1rem}
.filter-panel{display:flex;flex-direction:column;gap:1.6rem}
.filter-group h4{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:.7rem}
.filter-opt{display:flex;align-items:center;gap:.6rem;min-height:40px;cursor:pointer;font-size:.95rem;color:var(--ink-2);user-select:none}
.filter-opt input{width:18px;height:18px;accent-color:var(--red);cursor:pointer}
.filter-opt .fo-count{margin-left:auto;font-size:.8rem;color:var(--muted)}
.filter-opt:hover{color:var(--ink)}

.catalog-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.4rem;gap:1rem}
.product-count{font-size:.92rem;color:var(--muted)}
.clear-filters,.linklike{background:none;border:0;color:var(--red);font-weight:700;font-size:.9rem;cursor:pointer;font-family:var(--sans);text-decoration:underline}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.5rem}
.catalog-empty{text-align:center;padding:3rem 0;color:var(--muted)}

/* ---- Quality / compliance band ---- */
.quality{background:var(--blue);color:#fff;padding:6rem 0}
.quality-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:4rem;align-items:center}
.quality-copy{text-align:left}
.quality-copy h2{text-align:left;font-weight:900;font-size:clamp(1.8rem,3.4vw,2.5rem);line-height:1.15;margin-bottom:1.6rem}
.quality-list{list-style:none;display:flex;flex-direction:column;gap:.9rem}
.quality-list li{position:relative;padding-left:2rem;color:rgba(255,255,255,.92);font-size:1.05rem}
.quality-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--gold);font-weight:900}
.quality-note{margin-top:1.6rem;font-size:.85rem;color:rgba(255,255,255,.62);font-style:italic}
.quality-stats{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
.qstat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);padding:1.6rem;text-align:center}
.qstat strong{display:block;font-family:var(--cond);font-size:2.2rem;font-weight:700;color:var(--gold);line-height:1;margin-bottom:.4rem}
.qstat span{font-size:.85rem;color:rgba(255,255,255,.82)}

/* ---- OEM ---- */
.oem-inner{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.oem-copy{text-align:left}
.oem-copy h2{text-align:left;font-weight:900;font-size:clamp(1.8rem,3.4vw,2.4rem);margin-bottom:1.2rem;line-height:1.15}
.oem-copy p{color:var(--ink-2);margin-bottom:1.4rem}
.oem-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:.7rem;margin-bottom:2rem}
.oem-list li{position:relative;padding-left:1.6rem;color:var(--ink-2);font-size:.98rem}
.oem-list li::before{content:"→";position:absolute;left:0;color:var(--red);font-weight:700}
.oem-media{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.oem-media .ph{aspect-ratio:1/1;border-radius:var(--r);overflow:hidden;background:var(--chip)}
.oem-media .ph img{width:100%;height:100%;object-fit:cover}

/* ---- Catalog download band ---- */
.catalog-dl{background:var(--ink);color:#fff;padding:5rem 0}
.catalog-dl-inner{display:flex;align-items:center;justify-content:space-between;gap:3rem;flex-wrap:wrap}
.catalog-dl h2{text-align:left;font-weight:900;font-size:clamp(1.7rem,3vw,2.2rem);margin:.4rem 0 .8rem}
.catalog-dl p{color:rgba(255,255,255,.78);max-width:520px}
.catalog-dl-actions{display:flex;gap:1rem;flex-wrap:wrap}

/* ---- Contact ---- */
.contact{background:var(--snow);padding:7rem 0}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.contact-copy{text-align:left}
.contact-copy h2{text-align:left;font-weight:900;font-size:clamp(1.8rem,3.4vw,2.4rem);margin-bottom:1.1rem;line-height:1.15}
.contact-copy p{color:var(--ink-2);margin-bottom:1.8rem}
.contact-steps{list-style:none;display:flex;flex-direction:column;gap:.7rem;margin-bottom:1.8rem;padding:1.2rem 1.4rem;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.contact-steps li{display:flex;align-items:center;gap:.8rem;font-size:.95rem;color:var(--ink-2)}
.cs-n{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--red);color:#fff;font-weight:700;font-size:.85rem;display:inline-flex;align-items:center;justify-content:center}
.contact-info{list-style:none;display:flex;flex-direction:column;gap:1rem}
.contact-info li{display:flex;align-items:center;gap:.8rem;font-size:1.02rem}
.ci-ic{font-size:1.2rem}
.contact-info a:hover{color:var(--red)}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:2rem}
.field{margin-bottom:1.2rem}
.field label{display:block;font-size:.88rem;font-weight:700;color:var(--ink-2);margin-bottom:.4rem}
.field input,.field textarea{width:100%;padding:.75em .9em;min-height:48px;border:1.5px solid var(--line);border-radius:8px;font-family:var(--sans);font-size:1rem;color:var(--ink);background:#fff;transition:.18s;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--red)}
.form-note{margin-top:1rem;font-size:.9rem;color:var(--ok);background:#EAF6EE;padding:.8em 1em;border-radius:8px}

/* ---- Footer ---- */
.footer{background:var(--ink);color:#CFCFCF;padding:4rem 0 2rem}
.footer-inner{display:flex;justify-content:space-between;gap:3rem;flex-wrap:wrap;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand img{height:34px;margin-bottom:1rem}
.footer-brand p{max-width:280px;font-size:.92rem;color:#9E9E9E}
.footer-cols{display:flex;gap:4rem;flex-wrap:wrap}
.footer-cols h4{color:#fff;font-size:.95rem;margin-bottom:1rem}
.footer-cols a{display:block;font-size:.92rem;color:#9E9E9E;padding:.3em 0;transition:.18s}
.footer-cols a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1.6rem;font-size:.82rem;color:#7A7A7A}

/* ---- SKU modal ---- */
.sku-modal{position:fixed;inset:0;z-index:200;background:rgba(20,15,12,.72);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:1.2rem}
.sku-modal[hidden]{display:none}
.sku-close{position:absolute;top:1.2rem;right:1.4rem;width:48px;height:48px;border-radius:50%;background:#fff;border:0;font-size:1.8rem;line-height:1;cursor:pointer;color:var(--ink);z-index:2}
.sku-card{background:#fff;border-radius:var(--r);max-width:860px;width:100%;max-height:90vh;overflow:auto;display:grid;grid-template-columns:1fr 1fr}
.sku-media{background:#fff;position:relative;min-height:320px}
.sku-media img{width:100%;height:100%;object-fit:cover}
.sku-info{padding:2rem}
.sku-info .chip{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;background:var(--chip);color:var(--ink-2);padding:.3em .7em;border-radius:6px;margin-bottom:.8rem}
.sku-info h3{font-size:1.5rem;font-weight:900;line-height:1.2;margin-bottom:.3rem}
.sku-code{font-size:.85rem;color:var(--muted);font-weight:700;letter-spacing:.04em;margin-bottom:1rem}
.sku-point{color:var(--ink-2);font-size:.98rem;margin-bottom:1.4rem}
.sku-table{width:100%;border-collapse:collapse;font-size:.9rem;margin-bottom:1.4rem}
.sku-table th,.sku-table td{text-align:left;padding:.55em .2em;border-bottom:1px solid var(--line-2);vertical-align:top}
.sku-table th{color:var(--muted);font-weight:500;width:42%;white-space:nowrap}
.sku-table td{color:var(--ink);font-weight:500}
.sku-actions{display:flex;gap:.8rem}

/* ---- Floating action buttons ---- */
.fab-stack{position:fixed;right:1.2rem;bottom:1.2rem;z-index:120;display:flex;flex-direction:column;gap:.8rem;align-items:center}
.fab{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px -8px rgba(0,0,0,.4);transition:transform .18s ease}
.fab:hover{transform:translateY(-3px)}
.fab-wa{background:#25D366;color:#fff}
.fab-quote{background:var(--red);color:#fff;font-family:var(--cond);font-size:.72rem;font-weight:700;line-height:1.05;text-align:center;letter-spacing:.02em}
.fab-top{background:var(--ink);color:#fff;border:0;cursor:pointer;width:48px;height:48px}
.fab-top[hidden]{display:none}
.nav-links a.active:not(.nav-cta){color:var(--red)}
.nav-links a.active:not(.nav-cta)::after{width:100%}

/* ---- Reveal on scroll ---- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---- Responsive ---- */
@media(max-width:960px){
  .feature-grid{grid-template-columns:1fr 1fr}
  .quality-inner,.oem-inner,.contact-inner{grid-template-columns:1fr;gap:2.5rem}
  .catalog-layout{grid-template-columns:1fr;gap:1.4rem}
  .filter-rail{position:static}
  .filter-toggle{display:block}
  .filter-panel{display:none;margin-top:1rem;padding:1.4rem;border:1px solid var(--line);border-radius:var(--r);background:#fff}
  .filter-panel.open{display:flex}
  .sku-card{grid-template-columns:1fr;max-height:92vh}
  .sku-media{min-height:240px}
}
@media(max-width:720px){
  .section{padding:4.5rem 0}
  .nav-links{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:.5rem 0;border-bottom:1px solid var(--line);transform:translateY(-140%);transition:transform .3s ease;box-shadow:var(--shadow)}
  .nav-links.open{transform:none}
  .nav-links a{padding:1rem 6vw;min-height:52px;display:flex;align-items:center}
  .nav-links a:not(.nav-cta)::after{display:none}
  .nav-cta{margin:.6rem 6vw}
  .nav-burger{display:flex}
  .feature-grid{grid-template-columns:1fr}
  .oem-list{grid-template-columns:1fr}
  .hero-stats{gap:1.6rem}
  .footer-inner{flex-direction:column;gap:2rem}
  .catalog-dl-inner{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}