*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Prompt','Sarabun',system-ui,sans-serif;color:#1f2937;background:#fff;line-height:1.7}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
:root{--primary:#1e40af;--accent:#f97316;--dark:#0f172a;--muted:#64748b;--soft:#f8fafc}

/* Header */
header.site{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #e5e7eb;backdrop-filter:blur(10px)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo img{height:42px;width:auto}
.nav ul{display:flex;gap:26px;list-style:none;align-items:center;flex-wrap:wrap}
.nav a{font-weight:500;color:#334155;font-size:15px;transition:color .2s}
.nav a:hover,.nav a.active{color:var(--accent)}
.btn{display:inline-block;background:var(--accent);color:#fff !important;padding:11px 22px;border-radius:8px;font-weight:600;transition:transform .15s,box-shadow .2s;border:none;cursor:pointer}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(249,115,22,.35)}
.btn.outline{background:transparent;color:var(--primary) !important;border:2px solid var(--primary)}
.menu-toggle{display:none;background:none;border:none;font-size:28px;cursor:pointer;color:var(--dark)}

/* Hero */
.hero{position:relative;background:linear-gradient(135deg,#0f172a 0%,#1e40af 100%);color:#fff;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center;padding:90px 0}
.hero h1{font-size:clamp(32px,4vw,52px);line-height:1.2;margin-bottom:20px;font-weight:700}
.hero h1 span{color:var(--accent)}
.hero p{font-size:18px;color:#cbd5e1;margin-bottom:30px;max-width:560px}
.hero-img{border-radius:16px;overflow:hidden;box-shadow:0 25px 60px rgba(0,0,0,.4)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* Page header */
.page-head{background:linear-gradient(135deg,#1e40af,#0f172a);color:#fff;padding:70px 0;text-align:center}
.page-head h1{font-size:clamp(28px,4vw,44px);margin-bottom:10px}
.page-head p{color:#cbd5e1;font-size:17px;max-width:700px;margin:0 auto}

/* Sections */
section{padding:70px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title .eyebrow{color:var(--accent);font-weight:600;letter-spacing:2px;text-transform:uppercase;font-size:13px}
.section-title h2{font-size:clamp(26px,3.2vw,38px);color:var(--dark);margin-top:8px}
.section-title p{color:var(--muted);max-width:680px;margin:14px auto 0;font-size:16px}

/* Cards grid */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:28px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(15,23,42,.08)}
.card .icon{width:54px;height:54px;border-radius:12px;background:linear-gradient(135deg,#fed7aa,#f97316);display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px;color:var(--dark)}
.card p{color:var(--muted);font-size:15px}
.card.image{padding:0;overflow:hidden}
.card.image .body{padding:22px}
.card .price{font-size:28px;color:var(--primary);font-weight:700;margin:10px 0}

.soft{background:var(--soft)}

/* List */
.feature-list{list-style:none;display:grid;gap:14px}
.feature-list li{padding-left:32px;position:relative;color:#334155}
.feature-list li::before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}

/* Two col */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--accent),#ea580c);color:#fff;padding:60px 0;text-align:center}
.cta-band h2{font-size:30px;margin-bottom:14px}
.cta-band p{margin-bottom:24px;opacity:.95}
.cta-band .btn{background:#fff;color:var(--accent) !important}

/* Footer */
footer.site{background:#0f172a;color:#cbd5e1;padding:60px 0 20px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
footer h4{color:#fff;margin-bottom:18px;font-size:16px}
footer ul{list-style:none;display:grid;gap:10px}
footer a:hover{color:var(--accent)}
footer .logo img{height:38px;background:#fff;padding:6px 10px;border-radius:8px}
.copyright{border-top:1px solid #1e293b;padding-top:20px;text-align:center;color:#64748b}

/* Form */
.form{display:grid;gap:18px;max-width:640px;margin:0 auto;background:#fff;padding:36px;border-radius:14px;border:1px solid #e5e7eb}
.form input,.form textarea,.form select{width:100%;padding:13px 15px;border:1px solid #cbd5e1;border-radius:8px;font-size:15px;font-family:inherit;transition:border .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form label{font-weight:500;color:#334155;font-size:14px;margin-bottom:6px;display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* Article */
.article{max-width:820px;margin:0 auto}
.article h2{font-size:28px;margin:30px 0 14px;color:var(--dark)}
.article h3{font-size:22px;margin:24px 0 12px;color:var(--dark)}
.article p{margin-bottom:16px;color:#374151}
.article ul,.article ol{margin:0 0 16px 24px;color:#374151}
.article ul li,.article ol li{margin-bottom:8px}

.contact-info{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.contact-info .card{text-align:center}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stats .num{font-size:42px;color:var(--accent);font-weight:700}
.stats .lbl{color:var(--muted);margin-top:6px;font-size:14px}

@media(max-width:900px){
 .hero-inner,.two-col,.foot-grid,.contact-info,.stats{grid-template-columns:1fr}
 .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
 .form-row{grid-template-columns:1fr}
 .nav ul{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;border-bottom:1px solid #e5e7eb;gap:18px}
 .nav ul.open{display:flex}
 .menu-toggle{display:block}
}
@media(max-width:560px){
 .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
 .stats{grid-template-columns:repeat(2,1fr)}
}