*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans Thai","Tahoma",Arial,sans-serif;
  background:#d9d9d9;
  color:#111;
  line-height:1.7;
}
a{color:inherit}
.site-header{
  background:#111;
  color:#fff;
  position:sticky;
  top:0;
  z-index:20;
  box-shadow:0 2px 12px rgba(0,0,0,.18);
}
.nav{
  max-width:1120px;
  margin:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:12px 20px;
}
.brand{
  text-decoration:none;
  font-weight:800;
  letter-spacing:.3px;
}
.menu{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  list-style:none;
  padding:0;
  margin:0;
}
.menu a{
  display:block;
  padding:7px 14px;
  border-radius:5px;
  text-decoration:none;
  color:#fff;
  font-weight:700;
}
.menu a:hover,.menu a.active{background:#075c3a}
.hero{
  max-width:1120px;
  margin:28px auto 0;
  padding:0 20px;
}
.hero-card{
  background:#075c3a;
  color:#fff;
  border-radius:18px;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  min-height:300px;
}
.hero-text{padding:48px}
.hero h1{margin:0 0 12px;font-size:clamp(30px,5vw,54px);line-height:1.2}
.hero p{font-size:18px;margin:0 0 20px}
.hero-img{
  width:100%;height:100%;object-fit:cover;
  object-position:center;
  background:#eee;
}
.container{
  max-width:1120px;
  margin:28px auto;
  padding:0 20px;
}
.page-title{
  background:#111;
  color:#fff;
  padding:14px 22px;
  border-radius:8px;
  font-size:28px;
  margin:0 0 24px;
}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  background:#fff;
  border-radius:12px;
  padding:24px;
  box-shadow:0 2px 10px rgba(0,0,0,.08);
}
.card h2,.card h3{margin-top:0;color:#075c3a}
.timeline{position:relative;margin:10px 0}
.timeline-item{
  border-left:5px solid #075c3a;
  padding:5px 0 18px 20px;
  margin-left:8px;
}
.year{font-weight:900;color:#075c3a;font-size:20px}
.tag{
  display:inline-block;
  background:#075c3a;
  color:#fff;
  padding:4px 11px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
}
ul{padding-left:22px}
.portfolio-card{
  overflow:hidden;
  padding:0;
}
.portfolio-card .content{padding:20px}
.portfolio-icon{
  min-height:150px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#075c3a;
  color:#fff;
  font-size:58px;
  font-weight:900;
}
.btn{
  display:inline-block;
  background:#111;
  color:#fff;
  text-decoration:none;
  padding:9px 16px;
  border-radius:6px;
  font-weight:700;
  margin-top:8px;
}
.btn:hover{background:#075c3a}
.note{
  background:#eef5f1;
  border-left:5px solid #075c3a;
  padding:15px 18px;
  border-radius:7px;
}
.contact-list{list-style:none;padding:0}
.contact-list li{padding:10px 0;border-bottom:1px solid #ddd}
.contact-list strong{display:block;color:#075c3a}
form{display:grid;gap:14px}
label{font-weight:700}
input,textarea{
  width:100%;
  border:1px solid #bbb;
  border-radius:6px;
  padding:11px 12px;
  font:inherit;
  background:#fff;
}
textarea{min-height:150px;resize:vertical}
button{
  border:0;
  cursor:pointer;
  background:#075c3a;
  color:#fff;
  padding:11px 18px;
  border-radius:6px;
  font:inherit;
  font-weight:800;
}
.footer{
  margin-top:45px;
  background:#111;
  color:#fff;
  text-align:center;
  padding:24px 20px;
}
.small{font-size:14px;color:#555}
@media(max-width:760px){
  .nav{align-items:flex-start;flex-direction:column}
  .hero-card{grid-template-columns:1fr}
  .hero-text{padding:32px 24px}
  .hero-img{height:280px}
  .grid-2,.grid-3{grid-template-columns:1fr}
}