:root{
  --green-light:#88C597; --green-dark:#357045; --green-deep:#1F4A2C;
  --ink:#0B0B0B; --muted:#55605A; --line:#E3E8E4; --tint:#F3F8F4; --bg:#fff;
  --radius:14px; --max:1160px;
  --font:"IBM Plex Sans Thai","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Inter","IBM Plex Sans Thai",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:17px}
img,svg,iframe{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{line-height:1.25;margin:0 0 .5em}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--green-light);outline-offset:3px;border-radius:4px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:7px;color:var(--ink);text-decoration:none}
.brand .mark{height:30px;width:auto}
.brand .word{height:30px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a{text-decoration:none;font-weight:500;font-size:.97rem;color:var(--muted);transition:color .15s}
.nav a:hover{color:var(--ink)}
.nav .lang{border:1.5px solid var(--ink);color:var(--ink);padding:4px 12px;border-radius:999px;font-weight:600;font-size:.85rem;letter-spacing:.05em}
.nav .lang:hover{background:var(--ink);color:#fff}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;padding:0}
.bars,.bars::before,.bars::after{display:block;width:24px;height:2px;background:var(--ink);margin:auto;position:relative;transition:transform .2s}
.bars::before,.bars::after{content:"";position:absolute;left:0}
.bars::before{top:-7px}.bars::after{top:7px}
.menu-btn[aria-expanded="true"] .bars{background:transparent}
.menu-btn[aria-expanded="true"] .bars::before{transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .bars::after{transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{padding:clamp(56px,9vw,120px) 0 clamp(64px,9vw,110px);overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.eyebrow,.kicker{font-family:var(--display);font-weight:800;letter-spacing:.32em;font-size:.78rem;color:var(--green-dark);margin-bottom:18px;text-transform:uppercase}
h1{font-size:clamp(2.5rem,6.2vw,4.6rem);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin-bottom:24px}
h1 .hl{color:var(--green-dark);background:linear-gradient(transparent 68%,rgba(136,197,151,.45) 68%)}
.lead{font-size:clamp(1.05rem,1.6vw,1.22rem);color:var(--muted);max-width:34em;margin-bottom:34px}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;text-decoration:none;font-size:1rem;transition:transform .15s,background .15s,color .15s;border:2px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn .ic{width:20px;height:20px;fill:currentColor}
.btn-primary{background:var(--green-dark);color:#fff}
.btn-primary:hover{background:var(--green-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:var(--green-light);color:var(--ink);margin-top:8px}
.hero-art{position:relative}
.hero-art .mark{width:100%;height:auto;max-width:420px;margin-left:auto;filter:drop-shadow(0 30px 50px rgba(53,112,69,.18));animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(24px)}}

.stats{list-style:none;margin:44px 0 0;padding:28px 0 0;border-top:1px solid var(--line);display:flex;gap:40px;flex-wrap:wrap}
.stats strong{display:block;font-family:var(--display);font-weight:900;font-size:2.2rem;line-height:1;color:var(--green-dark)}
.stats span{font-size:.92rem;color:var(--muted)}

/* sections */
.section{padding:clamp(64px,9vw,112px) 0}
.section-tint{background:var(--tint)}
.section-dark{background:var(--green-deep);color:#fff}
.section-dark .kicker{color:var(--green-light)}
.body{color:var(--muted);max-width:38em}
.section-dark .body{color:rgba(255,255,255,.78)}

.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.pillars{display:grid;gap:14px}
.pillar{border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px 10px 72px;position:relative}
.quote{font-size:1.08rem;color:var(--ink)}
.ticks{list-style:none;margin:0 0 1em;padding:0;color:var(--muted)}
.ticks li{position:relative;padding-left:26px;margin-bottom:8px}
.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:12px;height:11px;background:linear-gradient(135deg,var(--green-dark) 50%,var(--green-light) 50%)}
.pillar .num{position:absolute;left:24px;top:22px;font-family:var(--display);font-weight:900;color:var(--green-light);font-size:1.2rem}
.pillars p{color:var(--muted)}

.cards{list-style:none;margin:36px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border-radius:var(--radius);padding:30px 28px 18px;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(31,74,44,.1)}
.svc-ic{width:64px;height:64px;padding:12px;margin-bottom:20px;border-radius:16px;background:rgba(136,197,151,.28);fill:none;stroke:var(--green-dark);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.card p{color:var(--muted)}

.updates{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.updates-copy{position:sticky;top:110px}
.fb-frame{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;max-width:500px;width:100%;justify-self:end}
.fb-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:44px 28px}
.fb-card .mark{width:96px;height:auto;margin-bottom:18px}
.fb-name{font-weight:700;font-size:1.25rem;margin:0}
.fb-sub{display:flex;align-items:center;gap:4px;color:#1877F2;font-weight:600;font-size:.9rem;margin:2px 0 14px}
.fb-sub .ic{width:18px;height:18px;fill:currentColor}
.fb-text{color:var(--muted);max-width:26em}
.fb-page{display:block;width:100%}
.fb-page,.fb-page span,.fb-page iframe{width:100%!important;max-width:500px}
.fb-frame:not(.fb-ok) .fb-page{height:0;overflow:hidden}
.fb-frame.fb-ok .fb-card{display:none}

.table-wrap{margin-top:32px;overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.projects{width:100%;border-collapse:collapse;min-width:620px;font-size:.98rem}
.projects th,.projects td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line)}
.projects thead th{background:var(--green-deep);color:#fff;font-weight:600;font-size:.88rem;letter-spacing:.03em}
.projects tbody th{font-weight:600}
.projects tbody tr:last-child>*{border-bottom:0}
.projects tbody tr:nth-child(even){background:var(--tint)}
.projects .num{text-align:right;font-variant-numeric:tabular-nums}
.projects .idx{color:var(--muted);width:56px}
.tag{display:inline-block;padding:2px 12px;border-radius:999px;font-size:.84rem;font-weight:600}
.tag-inst{background:var(--green-dark);color:#fff}
.tag-mod{background:rgba(136,197,151,.35);color:var(--green-deep)}
.note{margin-top:12px;font-size:.85rem;color:var(--muted)}
.multi a{white-space:nowrap}.sep{opacity:.5}
.updates.has-posts{grid-template-columns:1fr;gap:0}
.updates.has-posts .updates-copy{position:static;display:grid;grid-template-columns:1fr auto;align-items:end;column-gap:32px}
.updates.has-posts .updates-copy>*:not(.btn){grid-column:1}
.updates.has-posts .updates-copy .btn{grid-column:2;grid-row:1/span 3;align-self:end;margin-bottom:1em}
.fb-posts{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-link{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;transition:transform .2s,box-shadow .2s}
.post-link:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(31,74,44,.1)}
.post-img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--tint)}
.post-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px;flex:1}
.post-date{font-size:.82rem;color:var(--green-dark);font-weight:600}
.post-text{margin:0;color:var(--ink);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-line}
.post-more{margin-top:auto;font-size:.9rem;font-weight:600;color:var(--green-dark)}
.fb-all{margin-top:28px;justify-self:center}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
address{font-style:normal}
.contact-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.contact-row{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.contact-row .ic{width:24px;height:24px;fill:var(--green-light);flex:none;margin-top:4px}
.contact-row .label{display:block;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.6)}
.contact-row a,.contact-row span:not(.label){font-size:1.08rem;text-decoration:none;word-break:break-word}
.contact-row a:hover{color:var(--green-light)}
.contact-row.is-placeholder span:not(.label){opacity:.5;font-style:italic}
.map{width:100%;height:340px;border:0;border-radius:var(--radius);margin-top:48px}

.site-footer{padding:36px 0;border-top:1px solid var(--line)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.footer-inner img{height:52px;width:auto}
.footer-inner p{margin:0;color:var(--muted);font-size:.9rem;text-align:right}
@media (max-width:560px){.footer-inner p{text-align:left}}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}

@media (max-width:900px){
  .hero-inner,.about,.updates,.contact{grid-template-columns:1fr;gap:36px}
  .hero-art{display:none}
  .cards{grid-template-columns:1fr 1fr}
  .updates-copy{position:static}
  .fb-frame{justify-self:center}
  .menu-btn{display:block}
  .nav{position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:1.05rem}
  .nav .lang{align-self:flex-start;margin-top:16px;border-bottom:1.5px solid var(--ink)}
}
@media (max-width:900px){.fb-posts{grid-template-columns:1fr 1fr}.updates.has-posts .updates-copy{display:block}}
@media (max-width:560px){.fb-posts{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.stats{gap:24px}.stats strong{font-size:1.8rem}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}.reveal{opacity:1;transform:none}}