/* =========================================================================
   Trailer Equipment US — styles.css
   Mobile-first. System fonts. CSS variables. Industrial-automotive theme.
   ========================================================================= */

:root{
  --bg:#0e1419;          /* charcoal base            */
  --surface:#151e28;     /* cards / sections         */
  --surface-2:#1b2735;   /* raised surface           */
  --line:#263443;        /* hairline borders         */
  --navy:#0c1a2b;        /* deep navy accents        */
  --accent:#ff6a00;      /* safety orange            */
  --accent-2:#ff8530;    /* orange hover             */
  --text:#eef3f7;        /* primary text             */
  --muted:#9fb1c0;       /* secondary text           */
  --ok:#2ec16b;          /* in stock                 */
  --warn:#f2b63c;        /* low / used               */
  --white:#ffffff;
  --radius:14px;
  --radius-sm:10px;
  --gut:16px;            /* page side gutter (mobile)*/
  --maxw:1240px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --font: system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,"Apple Color Emoji",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3{line-height:1.12;margin:0 0 .5em;letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(1.9rem,6vw,3.4rem)}
h2{font-size:clamp(1.5rem,4.2vw,2.3rem)}
h3{font-size:1.15rem}
p{margin:0 0 1rem}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.muted{color:var(--muted)}
.center{text-align:center}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  min-height:48px;padding:12px 22px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:1rem;cursor:pointer;transition:transform .08s ease,background .15s ease,border-color .15s;
  min-width:44px;
}
.btn:active{transform:translateY(1px)}
.btn svg{width:1.15em;height:1.15em;flex:0 0 auto}
.btn-primary{background:var(--accent);color:#1a0e00;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-steel{background:var(--surface-2);color:var(--text);border-color:var(--line)}
.btn-steel:hover{border-color:var(--accent)}
.btn-block{width:100%}
.btn-lg{min-height:54px;font-size:1.05rem;padding:14px 26px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(12,18,24,.92);
  backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:14px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:-.03em;font-size:1.15rem;color:var(--white)}
.brand .mark{width:34px;height:34px;flex:0 0 auto}
.brand span b{color:var(--accent)}
.nav-toggle{margin-left:auto;background:transparent;border:1px solid var(--line);border-radius:10px;width:46px;height:46px;display:grid;place-items:center;cursor:pointer}
.nav-toggle svg{width:22px;height:22px;stroke:var(--text)}
.main-nav{display:none}
.main-nav a{padding:10px 12px;border-radius:8px;color:var(--muted);font-weight:600}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--text)}
.header-cta{display:none;margin-left:auto;align-items:center;gap:10px}
.cart-link{position:relative;display:inline-flex;align-items:center;gap:8px}
.cart-count{position:absolute;top:-8px;right:-10px;background:var(--accent);color:#1a0e00;font-size:.72rem;font-weight:800;min-width:20px;height:20px;border-radius:999px;display:grid;place-items:center;padding:0 5px}
/* mobile drawer */
.mobile-nav{display:none;flex-direction:column;gap:4px;padding:10px var(--gut) 18px;border-bottom:1px solid var(--line);background:var(--surface)}
.mobile-nav.open{display:flex}
.mobile-nav a{padding:14px 10px;border-radius:10px;font-weight:600;border:1px solid transparent}
.mobile-nav a:hover{background:var(--surface-2)}

@media(min-width:900px){
  .nav-toggle{display:none}
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:18px}
  .header-cta{display:flex}
  .mobile-nav{display:none !important}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--navy)}
.hero::after{content:"";position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(10,16,22,.55),rgba(10,16,22,.88)),
  radial-gradient(120% 80% at 70% 0%,rgba(255,106,0,.18),transparent 60%);
  z-index:1}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;filter:saturate(1.05)}
.hero-inner{position:relative;z-index:2;padding:56px 0 48px}
.hero h1{max-width:16ch}
.hero .lede{font-size:1.12rem;max-width:52ch;color:#dce7f0}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.hero-stats{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px}
.hero-stats .stat b{display:block;font-size:1.6rem;color:var(--accent);font-weight:900;line-height:1}
.hero-stats .stat span{font-size:.85rem;color:var(--muted)}

/* ---------- trust bar ---------- */
.trust{background:var(--surface);border-block:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:1fr;gap:4px;padding:14px 0}
.trust-item{display:flex;align-items:center;gap:12px;padding:10px var(--gut)}
.trust-item svg{width:26px;height:26px;stroke:var(--accent);flex:0 0 auto}
.trust-item b{display:block;font-size:.98rem}
.trust-item span{font-size:.82rem;color:var(--muted)}
@media(min-width:680px){.trust-grid{grid-template-columns:repeat(3,1fr)}}

/* ---------- sections ---------- */
section{padding:46px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:12px;margin-bottom:24px}
.section-head p{margin:0;color:var(--muted);max-width:60ch}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}

/* ---------- product grid ---------- */
.grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:560px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.grid{grid-template-columns:repeat(3,1fr)}}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s,transform .15s;
}
.card:hover{border-color:var(--accent);transform:translateY(-3px)}
.card-media{position:relative;aspect-ratio:16/10;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:10px;left:10px;font-size:.72rem;font-weight:800;letter-spacing:.03em;
  padding:5px 10px;border-radius:999px;background:rgba(14,20,25,.85);border:1px solid var(--line)}
.badge.instock{color:var(--ok);border-color:rgba(46,193,107,.4)}
.badge.cond{right:10px;left:auto;color:var(--muted)}
.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-type{font-size:.76rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.card h3{font-size:1.02rem;margin:0;min-height:2.3em}
.card h3 a:hover{color:var(--accent)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-size:.74rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);padding:3px 8px;border-radius:7px}
.price{font-size:1.5rem;font-weight:900;color:var(--white);letter-spacing:-.02em;margin-top:auto}
.price small{font-size:.72rem;font-weight:600;color:var(--muted);letter-spacing:0}
.card-actions{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:4px}

/* ---------- categories ---------- */
.cats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:720px){.cats{grid-template-columns:repeat(4,1fr)}}
.cat{display:flex;flex-direction:column;gap:4px;padding:18px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);transition:border-color .15s}
.cat:hover{border-color:var(--accent)}
.cat b{font-size:1rem}
.cat span{font-size:.8rem;color:var(--muted)}

/* ---------- why choose ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:720px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.feature-grid{grid-template-columns:repeat(4,1fr)}}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.feature svg{width:34px;height:34px;stroke:var(--accent);margin-bottom:12px}
.feature h3{margin-bottom:6px}
.feature p{margin:0;color:var(--muted);font-size:.92rem}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-inline:auto}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 18px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px;min-height:44px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-weight:900;font-size:1.3rem}
.faq details[open] summary::after{content:"\2212"}
.faq details > p{padding:0 18px 16px;margin:0;color:var(--muted)}

/* ---------- inventory toolbar ---------- */
.toolbar{position:sticky;top:64px;z-index:20;background:var(--bg);border-bottom:1px solid var(--line);padding:14px 0}
.toolbar-inner{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.field{display:flex;flex-direction:column;gap:4px}
.input,.select{min-height:46px;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:10px 12px;font-size:.95rem;width:100%}
.input:focus,.select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.search-wrap{flex:1 1 220px}
.result-count{color:var(--muted);font-size:.9rem;margin-left:auto}

/* ---------- product detail ---------- */
.pdp{display:grid;grid-template-columns:1fr;gap:28px;padding-top:26px}
@media(min-width:900px){.pdp{grid-template-columns:1.15fr .85fr;align-items:start}}
.gallery{display:flex;flex-direction:column;gap:10px}
.gallery-main{aspect-ratio:4/3;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.gallery-main img{width:100%;height:100%;object-fit:cover}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.thumbs button{padding:0;border:2px solid var(--line);border-radius:10px;overflow:hidden;background:none;cursor:pointer;aspect-ratio:1/1}
.thumbs button.active{border-color:var(--accent)}
.thumbs img{width:100%;height:100%;object-fit:cover}
.pdp-info .price{font-size:2.1rem;margin:6px 0 2px}
.pdp-buy{display:flex;flex-direction:column;gap:10px;margin:18px 0;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.pdp-buy .btn{width:100%}
.buy-total{display:flex;justify-content:space-between;font-size:.95rem;color:var(--muted)}
.buy-total.total{color:var(--text);font-weight:800;font-size:1.15rem;border-top:1px solid var(--line);padding-top:10px;margin-top:2px}
.invoice-box{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--ok);border-radius:var(--radius);padding:22px}
.invoice-box h2{margin:0 0 4px}
.invoice-box .inv-no{font-weight:800;color:var(--accent)}
.invoice-box table{width:100%;border-collapse:collapse;margin:14px 0}
.invoice-box td{padding:8px 0;border-bottom:1px solid var(--line);font-size:.95rem}
.invoice-box tr.t td{font-weight:800;font-size:1.1rem;border:0}
.spec-table{width:100%;border-collapse:collapse;margin:10px 0 0}
.spec-table th,.spec-table td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);font-size:.94rem}
.spec-table th{color:var(--muted);font-weight:600;width:45%}
.secure-note{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.82rem;margin-top:4px}
.secure-note svg{width:16px;height:16px;stroke:var(--ok)}
.pay-icons{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.pay-icons img{height:26px;width:auto;border-radius:4px}
.prose h2{margin-top:1.4em;font-size:1.35rem}
.prose h3{margin-top:1.2em}
.prose p,.prose li{color:#d6e1ea}
.prose ul{padding-left:1.2em}
.breadcrumb{font-size:.85rem;color:var(--muted);padding:16px 0 0;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--accent)}

/* ---------- cart ---------- */
.cart-item{display:grid;grid-template-columns:90px 1fr auto;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px;margin-bottom:12px}
.cart-item img{width:90px;height:68px;object-fit:cover;border-radius:8px}
.cart-item .t{font-weight:700;font-size:.98rem}
.cart-item .p{color:var(--accent);font-weight:800}
.cart-remove{background:none;border:1px solid var(--line);color:var(--muted);border-radius:8px;min-height:40px;padding:6px 12px;cursor:pointer}
.cart-remove:hover{border-color:var(--accent);color:var(--accent)}
.cart-grid{display:grid;grid-template-columns:1fr;gap:26px}
@media(min-width:900px){.cart-grid{grid-template-columns:1.4fr .9fr;align-items:start}}
.quote-form{display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.quote-form label{font-size:.85rem;color:var(--muted);font-weight:600}
.summary-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.summary-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line)}
.summary-row.total{border:0;font-size:1.3rem;font-weight:900;padding-top:14px}

/* ---------- forms/policy ---------- */
.policy{max-width:820px;margin-inline:auto}
.policy h2{margin-top:1.6em}
.policy p,.policy li{color:#d2dde6}
.contact-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:720px){.contact-grid{grid-template-columns:repeat(3,1fr)}}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-align:center}
.contact-card svg{width:30px;height:30px;stroke:var(--accent);margin-bottom:8px}
.contact-card a{color:var(--accent);font-weight:700;word-break:break-word}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);border-top:1px solid var(--line);padding:44px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:720px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}
.footer-grid h4{font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.footer-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.footer-grid a{color:#cdd9e3}
.footer-grid a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;color:var(--muted);font-size:.84rem}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%) translateY(120%);background:var(--accent);color:#1a0e00;font-weight:700;padding:12px 20px;border-radius:999px;box-shadow:var(--shadow);z-index:100;transition:transform .3s ease;max-width:92vw}
.toast.show{transform:translateX(-50%) translateY(0)}
.empty{text-align:center;padding:60px 20px;color:var(--muted)}

@media(prefers-reduced-motion:reduce){*{transition:none !important;scroll-behavior:auto}}