:root{
	--primary:#2b8aee;
	--accent:#f5a623;
	--bg:#fff;
	--muted:#6b7280;
	--max-width:1100px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
	font-family: "Segoe UI", Roboto, "Noto Sans Thai", Tahoma, sans-serif;
	margin:0;background:var(--bg);color:#111;line-height:1.5;
}
.container{max-width:var(--max-width);margin:0 auto;padding:1rem}
.site-header{background:linear-gradient(90deg,var(--primary),#46b3ff);color:#fff;position:sticky;top:0;z-index:50}
.site-header.small{padding:.6rem 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:inherit}
.brand .logo{width:44px;height:44px;object-fit:cover;border-radius:6px;background:#fff}
.brand-title{font-weight:700}
.main-nav{display:flex;gap:1rem}
.main-nav a{color:inherit;text-decoration:none;font-weight:600}
.nav-toggle{display:none;background:transparent;border:0;color:inherit;font-size:1.25rem}
.hero{padding:2.2rem 0;background:linear-gradient(180deg,#f7fbff,white)}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:1.5rem;align-items:center}
.hero-text h1{margin:0 0 .6rem;font-size:1.75rem}
.lead{color:var(--muted)}
.hero-media img{width:100%;border-radius:10px;box-shadow:0 10px 30px rgba(16,24,40,0.08)}
.cta-row{margin-top:1rem;display:flex;gap:.8rem}
.btn{display:inline-block;padding:.6rem .9rem;border-radius:8px;text-decoration:none;border:1px solid transparent;cursor:pointer}
.btn.primary{background:var(--primary);color:#fff}
.btn.ghost{background:transparent;color:var(--primary);border-color:rgba(43,138,238,.15)}
.product-cards{display:flex;gap:1rem;flex-wrap:wrap}
.card{background:#fff;border-radius:10px;padding:1rem;box-shadow:0 6px 18px rgba(16,24,40,.06);flex:1;min-width:220px}
.card img{width:100%;height:140px;object-fit:cover;border-radius:8px}
.news-list{list-style:none;padding:0;margin:0}
.news-list li{padding:.3rem 0}
.site-footer{background:#0f1724;color:#fff;padding:1.2rem 0;margin-top:2rem}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem}
.muted{color:var(--muted)}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1rem}
.filters{display:flex;gap:1rem;flex-wrap:wrap;align-items:center;margin:1rem 0}
.filters label{font-weight:600;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:1fr 320px;gap:1.2rem}
.contact-form{display:flex;flex-direction:column;gap:.6rem}
.contact-form input,.contact-form textarea{padding:.6rem;border-radius:8px;border:1px solid #e6e9ee}
.team-grid{display:flex;gap:1rem;flex-wrap:wrap}
.team-member img{width:160px;height:160px;object-fit:cover;border-radius:10px}
.team-member{text-align:center}
.copyright{text-align:center;padding-top:.8rem;color:rgba(255,255,255,.8)}

/* small screens */
@media (max-width:850px){
	.hero-grid{grid-template-columns:1fr}
	.header-inner{padding:.6rem 0}
	.main-nav{display:none}
	.nav-toggle{display:block}
	.footer-grid{grid-template-columns:1fr}
	.contact-grid{grid-template-columns:1fr}
}

/* animations */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal{opacity:1;transform:none}

/* accessibility helpers */
button.nav-toggle{font-size:1.1rem}