/* Smile Machinery — B2B aftermarket parts static site */
:root{
  --blue:#0059a0; --blue-dark:#003f73; --accent:#f2a900; --accent-dark:#d49400;
  --dark:#1c2b36; --gray:#5b6b78; --light:#f4f7f9; --border:#e2e8ed;
  --whatsapp:#25d366;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--dark);line-height:1.65;font-size:16px}
img{max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--accent-dark)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
/* header */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo img{height:44px;width:auto;display:block}
.main-nav ul{list-style:none;display:flex;gap:4px}
.main-nav a{display:block;padding:10px 13px;font-weight:600;font-size:15px;color:var(--dark);border-radius:6px}
.main-nav a:hover,.main-nav a.active{background:var(--light);color:var(--blue)}
.header-actions{display:flex;align-items:center;gap:10px}
.lang-switch{display:flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}
.lang-switch a{padding:6px 10px;font-size:13px;font-weight:700;color:var(--gray)}
.lang-switch a.active{background:var(--blue);color:#fff}
.btn{display:inline-block;padding:11px 20px;border-radius:6px;font-weight:700;font-size:15px;cursor:pointer;border:none;text-align:center}
.btn-wa{background:var(--whatsapp);color:#fff}
.btn-wa:hover{background:#1eb85a;color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark);color:#fff}
.btn-accent{background:var(--accent);color:#1c2b36}
.btn-accent:hover{background:var(--accent-dark);color:#fff}
/* hero */
.hero{background:linear-gradient(120deg,var(--blue-dark),var(--blue));color:#fff;padding:70px 0 60px}
.hero h1{font-size:38px;line-height:1.25;max-width:820px}
.hero .sub{font-size:18px;opacity:.92;max-width:680px;margin-top:14px}
.hero .cta{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.trustbar{background:rgba(0,0,0,.16);display:flex;gap:28px;flex-wrap:wrap;margin-top:34px;padding:14px 18px;border-radius:8px;font-size:14px;max-width:860px}
.trustbar b{color:var(--accent)}
/* lead strip */
.leadstrip{background:var(--accent);color:#1c2b36;padding:16px 0;font-weight:700;font-size:16px;text-align:center}
/* sections */
section.block{padding:56px 0}
.block h2{font-size:27px;margin-bottom:8px}
.block .sec-sub{color:var(--gray);margin-bottom:30px;max-width:760px}
.bg-light{background:var(--light)}
/* system cards */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:22px;transition:box-shadow .2s}
.card:hover{box-shadow:0 6px 22px rgba(28,43,54,.1)}
.card h3{font-size:17px;margin:10px 0 6px}
.card p{color:var(--gray);font-size:14px}
.card .num{font-size:32px;font-weight:800;color:var(--blue)}
/* stats / why choose */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.stat{text-align:center;padding:24px 12px}
.stat .v{font-size:34px;font-weight:800;color:var(--blue)}
.stat .l{color:var(--gray);font-size:14px;margin-top:4px}
/* brands */
.brands{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.brand-chip{border:1px solid var(--border);border-radius:20px;padding:8px 18px;font-weight:700;background:#fff;font-size:14px}
/* testimonials */
.tst{background:#fff;border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:8px;padding:18px}
.tst p{font-style:italic;color:var(--gray);font-size:14.5px}
.tst .who{margin-top:10px;font-weight:700;font-size:13.5px}
/* faq */
.faq details{border:1px solid var(--border);border-radius:8px;margin-bottom:10px;background:#fff}
.faq summary{padding:15px 18px;font-weight:700;cursor:pointer}
.faq details p{padding:0 18px 15px;color:var(--gray)}
/* footer */
.site-footer{background:var(--dark);color:#c7d2da;padding:44px 0 20px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:26px}
.site-footer h4{color:#fff;margin-bottom:12px;font-size:16px}
.site-footer a{color:#c7d2da}
.site-footer a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:16px;font-size:13px;color:#93a3ae}
.disclaimer{background:#fff6e0;border:1px solid #f0d98c;color:#6b5300;padding:10px 14px;border-radius:6px;font-size:13.5px;margin-top:16px}
/* product page */
.breadcrumb{font-size:13.5px;color:var(--gray);padding:16px 0}
.breadcrumb a{color:var(--blue)}
.p-detail{display:grid;grid-template-columns:1fr 1.2fr;gap:34px;padding-bottom:44px}
.p-imgs img{border:1px solid var(--border);border-radius:10px}
.p-info h1{font-size:26px;line-height:1.3}
.p-info .subtitle{color:var(--gray);margin:8px 0 16px}
.spec-table{width:100%;border-collapse:collapse;margin:14px 0}
.spec-table td{border:1px solid var(--border);padding:9px 12px;font-size:14px}
.spec-table td:first-child{background:var(--light);font-weight:700;width:38%}
.tag-oem{display:inline-block;background:#eef4fa;border:1px solid #cfe0ef;border-radius:5px;padding:4px 10px;margin:3px;font-family:Consolas,monospace;font-size:13.5px}
.feature-list{list-style:none;margin:12px 0}
.feature-list li{padding:6px 0 6px 26px;position:relative}
.feature-list li:before{content:'✓';position:absolute;left:0;color:var(--blue);font-weight:800}
.note-box{background:#f0f7f0;border:1px solid #cfe3cf;border-radius:6px;padding:12px;font-size:14px;color:#2c5c2c;margin:14px 0}
/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
label{font-size:14px;font-weight:700;display:block;margin-bottom:5px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:6px;font-size:15px;font-family:inherit}
input:focus,textarea:focus{outline:2px solid var(--blue)}
/* wa float */
.wa-float{position:fixed;right:22px;bottom:22px;background:var(--whatsapp);color:#fff;width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.25);z-index:200;font-size:26px}
.wa-float:hover{transform:scale(1.06);color:#fff}
/* list pages */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.filter-bar button{border:1px solid var(--border);background:#fff;border-radius:20px;padding:7px 15px;cursor:pointer;font-weight:600;font-size:14px}
.filter-bar button.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.p-card{border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff;transition:box-shadow .2s}
.p-card:hover{box-shadow:0 6px 18px rgba(28,43,54,.12)}
.p-card img{width:100%;height:190px;object-fit:cover;display:block}
.p-card .pc-body{padding:15px}
.p-card h3{font-size:15.5px;line-height:1.4;margin-bottom:6px}
.p-card .pc-oem{color:var(--blue);font-family:Consolas,monospace;font-size:13px}
/* misc */
.placeholder-img{background:var(--light);border:1px dashed var(--border);display:flex;align-items:center;justify-content:center;color:#aab;font-weight:700;min-height:200px}
.contact-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:34px}
.hr-list{list-style:none}
.hr-list li{padding:8px 0;border-bottom:1px solid var(--border)}
.map-ph{background:#e8eef3;border:1px solid var(--border);border-radius:10px;height:220px;display:flex;align-items:center;justify-content:center;color:var(--gray)}
@media(max-width:960px){
  .grid4,.grid3,.stat-grid{grid-template-columns:repeat(2,1fr)}
  .p-detail,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .header-in{flex-wrap:wrap;height:auto;padding:10px 0;gap:8px}
  .main-nav{order:3;width:100%;overflow-x:auto}
  .hero h1{font-size:28px}
}
@media(max-width:560px){
  .grid4,.grid3,.grid2,.stat-grid,.form-grid{grid-template-columns:1fr}
}