:root{
  --green:#0F5132;
  --green-soft:#e6efe9;
  --cream:#FBF8F1;
  --orange:#F2994A;
  --ink:#1c231f;
  --ink-soft:#565f57;
  --line:#e3ddcd;
  --white:#ffffff;
  --radius:14px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:"IBM Plex Sans Thai","Inter",ui-sans-serif,system-ui,sans-serif;
  line-height:1.65;
}
a{color:var(--green);}
img{max-width:100%;}
.wrap{max-width:1080px;margin-inline:auto;padding-inline:20px;}

header.site{
  background:var(--white);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-block:16px;
  flex-wrap:wrap;
}
.logo{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:"Poppins","Inter",sans-serif;
  font-weight:700;
  font-size:22px;
  color:var(--green);
  text-decoration:none;
}
.logo svg{height:28px;width:28px;}
nav.links{display:flex;gap:22px;flex-wrap:wrap;}
nav.links a{
  color:var(--ink);
  text-decoration:none;
  font-size:15px;
  font-weight:600;
}
nav.links a:hover{color:var(--green);}

.hero{
  padding-block:56px 44px;
  text-align:center;
}
.hero .eyebrow{
  display:inline-block;
  background:var(--green-soft);
  color:var(--green);
  font-size:13px;
  font-weight:700;
  padding:5px 14px;
  border-radius:999px;
  margin-bottom:18px;
}
h1{
  font-family:"Poppins","Inter",sans-serif;
  font-size:clamp(28px,4.5vw,42px);
  font-weight:700;
  margin:0 0 16px;
  color:var(--ink);
}
h1 .accent{color:var(--orange);}
.hero p.lead{
  max-width:60ch;
  margin:0 auto 28px;
  font-size:18px;
  color:var(--ink-soft);
}
.btn{
  display:inline-block;
  background:var(--green);
  color:var(--white);
  padding:13px 26px;
  border-radius:999px;
  text-decoration:none;
  font-weight:700;
  font-size:15px;
  border:none;
  cursor:pointer;
}
.btn:hover{background:#0c3f27;}
.btn.secondary{
  background:var(--white);
  color:var(--green);
  border:2px solid var(--green);
  padding:11px 24px;
}
.btn.orange{background:var(--orange);}
.btn.orange:hover{background:#d97f34;}
.btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

section{padding-block:44px;}
section.alt{background:var(--white);border-block:1px solid var(--line);}
h2{
  font-family:"Poppins","Inter",sans-serif;
  font-size:clamp(22px,3vw,30px);
  margin:0 0 8px;
  color:var(--ink);
}
p.section-sub{color:var(--ink-soft);margin:0 0 30px;max-width:65ch;}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
@media (max-width:760px){.grid-3,.grid-2{grid-template-columns:1fr;}}

.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
}
.card h3{margin:0 0 10px;font-size:18px;font-family:"Poppins","Inter",sans-serif;}
.card p{margin:0 0 14px;color:var(--ink-soft);font-size:14.5px;}
.card .price{font-weight:700;color:var(--orange);font-size:15px;}
.card a.card-link{
  text-decoration:none;
  color:var(--green);
  font-weight:700;
  font-size:14px;
}

.tool-box{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  max-width:640px;
  margin-inline:auto;
}
.tool-box label{
  display:block;
  font-weight:600;
  font-size:14px;
  margin:16px 0 6px;
}
.tool-box input,.tool-box select{
  width:100%;
  padding:11px 12px;
  border:1px solid var(--line);
  border-radius:8px;
  font-size:15px;
  font-family:inherit;
  background:var(--cream);
}
.tool-result{
  margin-top:24px;
  padding:20px;
  background:var(--green-soft);
  border-radius:10px;
  text-align:center;
}
.tool-result .big{
  font-size:32px;
  font-weight:700;
  color:var(--green);
  font-family:"Poppins","Inter",sans-serif;
}
.tool-result .sub{color:var(--ink-soft);font-size:13.5px;margin-top:6px;}
.disclaimer{
  font-size:12.5px;
  color:var(--ink-soft);
  background:var(--white);
  border:1px dashed var(--line);
  border-radius:8px;
  padding:12px 14px;
  margin-top:18px;
}

.blog-list{display:flex;flex-direction:column;gap:16px;}
.blog-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
  text-decoration:none;
  color:inherit;
  display:block;
}
.blog-item .tag{
  font-size:12px;
  font-weight:700;
  color:var(--orange);
  text-transform:uppercase;
  letter-spacing:.04em;
}
.blog-item h3{margin:8px 0 6px;font-family:"Poppins","Inter",sans-serif;font-size:19px;color:var(--ink);}
.blog-item p{margin:0;color:var(--ink-soft);font-size:14.5px;}

article.post{max-width:720px;margin-inline:auto;}
article.post h1{font-size:clamp(26px,4vw,34px);}
article.post .meta{color:var(--ink-soft);font-size:13.5px;margin-bottom:28px;}
article.post h2{margin-top:36px;font-size:22px;}
article.post h3{margin-top:24px;font-size:17px;}
article.post p{margin:14px 0;font-size:16px;}
article.post ul,article.post ol{font-size:16px;line-height:1.75;}
article.post table,table.data-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;}
article.post th,article.post td,table.data-table th,table.data-table td{border:1px solid var(--line);padding:8px 10px;text-align:left;}
article.post th,table.data-table th{background:var(--green-soft);}
.cta-box{
  background:var(--green-soft);
  border-radius:var(--radius);
  padding:24px;
  margin:32px 0;
  text-align:center;
}
.cta-box p{margin:0 0 14px;font-weight:600;}

footer.site{
  background:var(--ink);
  color:#cfd6cf;
  padding-block:36px;
  margin-top:60px;
  font-size:13.5px;
}
footer.site a{color:#e6efe9;}
footer.site .cols{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;}
footer.site .col h4{color:#fff;font-size:13px;margin:0 0 10px;}
footer.site .col a{display:block;margin-bottom:6px;text-decoration:none;}
footer.site .bottom{margin-top:24px;padding-top:18px;border-top:1px solid #33392f;color:#8b9186;}