:root{
  --ink:#0F1B2D;--ink-2:#142640;--ink-line:#23395A;--ink-soft:#3A5068;
  --paper:#F5F6F2;--white:#FFFFFF;--line:#DCE2DA;--line-2:#E6EAE3;
  --text:#14202E;--text-2:#3F4D5C;--muted:#5B6876;
  --teal:#1A6B60;--teal-dk:#0F4A42;--mint:#5FC4B4;--mint-bg:#EAF4F1;
  --amber:#B7791F;--amber-dk:#6B4510;--amber-lt:#E0A458;--amber-bg:#FBF6EC;
  --on-ink:#F5F6F2;--on-ink-2:#C9D4E0;--on-ink-3:#9FB3C8;
  --font:'IBM Plex Sans Thai','IBM Plex Sans','Noto Sans SC',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--font);line-height:1.6;-webkit-text-size-adjust:100%}
img,svg{max-width:100%}
a{color:var(--teal)}a:hover{color:var(--teal-dk)}
h1,h2,h3{line-height:1.3;margin:0}
p{margin:0}
.mono{font-family:var(--mono)}
.small{font-size:13px}.muted{color:var(--muted)}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--mint);color:var(--ink);padding:8px 14px;border-radius:8px;z-index:10}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px}

/* header */
.top{background:var(--ink);color:var(--on-ink)}
.top-in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:12px;color:var(--on-ink);text-decoration:none;font-weight:700;font-size:20px}
.brand svg{color:var(--mint)}
.brand-logo{display:block;height:46px;width:auto}
.brand em{font-style:normal;font-weight:400;color:var(--on-ink-3)}
.brand:hover{color:var(--on-ink)}
.nav{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;font-size:15px}
.nav>a:not(.btn){color:#D5DEE8;text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.nav>a:not(.btn):hover{color:#fff}
.langs{display:inline-flex;border:1px solid var(--ink-soft);border-radius:8px;overflow:hidden}
.langs a{min-height:40px;min-width:48px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;color:#D5DEE8;text-decoration:none;font-size:14px}
.langs a[aria-current]{background:var(--mint);color:var(--ink);font-weight:600}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border-radius:10px;font-weight:600;text-decoration:none;font-family:inherit;font-size:15px;border:1px solid transparent;cursor:pointer;line-height:1.3}
.btn-lg{padding:14px 24px;font-size:16px}
.btn-mint{background:var(--mint);color:var(--ink)}.btn-mint:hover{background:#7ED3C6;color:var(--ink)}
.btn-ghost{border-color:var(--mint);color:var(--on-ink);font-weight:500}.btn-ghost:hover{background:var(--ink-2);color:#fff}
.btn-dark{background:var(--ink);color:var(--on-ink)}.btn-dark:hover{background:#1B2E47;color:#fff}
.btn-teal{background:var(--teal);color:#fff;border:0}.btn-teal:hover{background:var(--teal-dk);color:#fff}
.btn-teal[disabled]{opacity:.6;cursor:wait}
.btn-line{border-color:var(--teal);color:var(--teal)}.btn-line:hover{background:var(--mint-bg)}

/* hero */
.hero{background:var(--ink);color:var(--on-ink);padding:64px 0 104px}
.hero-in{display:flex;flex-wrap:wrap;gap:56px;align-items:center}
.hero-copy{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:22px}
.hero h1{font-size:clamp(32px,4.4vw,48px);line-height:1.25}
.lead{font-size:19px;color:var(--on-ink-2);max-width:600px}
.lead-dark{font-size:17px;color:var(--text-2)}
.actions{display:flex;flex-wrap:wrap;gap:14px;padding-top:6px}
.badge{display:inline-flex;align-self:flex-start;align-items:center;gap:8px;border-radius:999px;padding:5px 14px;font-size:13px}
.badge i{width:8px;height:8px;border-radius:50%;display:inline-block}
.badge-amber{border:1px solid var(--amber-lt);color:#F2C98F}.badge-amber i{background:var(--amber-lt)}
.badge-amber-light{border:1px solid var(--amber);color:var(--amber-dk);background:var(--amber-bg)}.badge-amber-light i{background:var(--amber)}

.tree{flex:1 1 400px;min-width:0;background:var(--ink-2);border:1px solid var(--ink-line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:18px;font-family:var(--mono);font-size:12px}
.tree-root{display:flex;justify-content:center}
.tree-root span{background:var(--mint);color:var(--ink);border-radius:8px;padding:10px 18px;font-weight:600}
.tree-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.tree-branch{display:flex;flex-direction:column;gap:12px;border-top:2px solid var(--ink-soft);padding-top:14px}
.tree-sec{background:#1F3B5C;border-radius:8px;padding:8px 12px;text-align:center;color:#E3EAF1}
.tree-zones{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.tree-zone{border:1px solid var(--ink-soft);border-radius:8px;padding:8px;text-align:center;color:var(--on-ink-2);display:flex;flex-direction:column;align-items:center}
.tree-zone .dots{display:flex;gap:5px;padding-top:8px}
.tree-zone .dots i{width:9px;height:9px;border-radius:50%;background:var(--amber-lt)}
.tree-zone.acting{border-style:dashed;border-color:var(--mint);color:var(--mint)}
.tree-zone small{font-size:10px;padding-top:4px}
.tree-cap{font-family:var(--font);color:var(--on-ink-3);font-size:13px;line-height:1.5}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));background:var(--white);border:1px solid var(--line);border-radius:16px;margin:-52px auto 0;position:relative;padding:0;width:calc(100% - 48px);max-width:1152px}
.stat{padding:24px 28px;border-right:1px solid var(--line-2);display:flex;flex-direction:column}
.stat:last-child{border-right:0}
.stat b{font-size:32px;color:var(--teal)}
.stat span{font-size:15px;color:var(--text-2)}

/* sections */
.sec{padding-top:88px;padding-bottom:88px;display:flex;flex-direction:column;gap:28px}
.sec-tight{padding-bottom:88px}
.sec-head{max-width:780px;display:flex;flex-direction:column;gap:14px}
.sec-head h2{font-size:clamp(26px,3vw,36px)}
.sec-head p{font-size:17px;color:var(--text-2)}
.row-between{max-width:none;flex-direction:row;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:20px}
.row-between>div{max-width:720px;display:flex;flex-direction:column;gap:14px}
.eyebrow{font-family:var(--mono);font-size:13px;color:var(--teal);letter-spacing:.08em;text-transform:uppercase}
.eyebrow-mint{color:var(--mint)}
.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-white{background:var(--white)}
.band-dark{background:var(--ink);color:var(--on-ink);border:0}
.band-dark .sec-head p{color:var(--on-ink-2)}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:26px;display:flex;flex-direction:column;gap:8px}
.card h3{font-size:20px}
.card p{font-size:15px;color:var(--text-2)}
.card-dark{background:var(--ink);color:var(--on-ink);border:0}.card-dark p{color:var(--on-ink-2)}.card-dark .tag{color:var(--on-ink-3)}
.card-teal{background:var(--teal);color:var(--on-ink);border:0}.card-teal p{color:#E0F2EE}.card-teal .tag{color:#BFE6DE}
.tag{font-size:12px;color:var(--amber-dk)}
.tag.muted{color:var(--muted)}.tag.amber{color:#8A5A12}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;gap:8px;align-items:center;border:1px solid #C9D3CC;background:#F9FAF7;border-radius:8px;padding:6px 12px;font-size:14px;color:var(--text);text-decoration:none}
.chip b{color:var(--teal)}
.chip.mono{font-size:13px}
.chip-amber{border-color:#E2CFA9;background:var(--amber-bg)}
.chip-dark{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}
.chips-dark .chip{background:transparent;border-color:var(--ink-soft);color:#E3EAF1}
.label{font-size:15px;font-weight:600;color:var(--muted);margin-top:4px}
.empty{border:1px dashed #9FB3A8;border-radius:12px;padding:22px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;color:var(--text-2)}
.empty span{flex:1 1 360px}

/* cases */
.case{background:var(--ink-2);border:1px solid var(--ink-line);border-radius:14px;padding:26px;display:flex;flex-direction:column;gap:10px}
.case h3{font-size:19px}
.case p{font-size:14px;color:var(--on-ink-2)}
.case .small{color:var(--on-ink-3)}
.case-propose{background:transparent;border:1px dashed var(--mint);justify-content:center}
.case-propose h3{color:var(--mint)}
.case-propose .btn{align-self:flex-start}
.pill{align-self:flex-start;font-size:12px;border-radius:999px;padding:3px 12px}
.pill-testing,.pill-done{background:var(--mint);color:var(--ink)}
.pill-planned{border:1px solid var(--amber-lt);color:#F2C98F}
.pill-soon{background:#F6EEDF;color:var(--amber-dk)}

/* split panels */
.split{flex-direction:row;flex-wrap:wrap;gap:32px;padding-bottom:0}
.split>*{flex:1 1 420px;min-width:0}
#docs{padding-bottom:88px}
.panel{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:32px;display:flex;flex-direction:column;gap:14px}
.panel-dark{background:var(--ink);color:var(--on-ink);border:0}
.panel-dark p{color:var(--on-ink-2);font-size:14px}
.panel-dark h3{font-size:20px}
.panel .btn{align-self:flex-start}
.row-gap{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.h2s{font-size:clamp(24px,2.6vw,30px);margin:6px 0 4px}
.kv{margin:0;border-top:1px solid var(--line-2)}
.kv div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 16px;padding:12px 0;border-bottom:1px solid var(--line-2);font-size:15px}
.kv dt{color:var(--muted)}.kv dd{margin:0;font-weight:500}
.steps{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.steps li{display:flex;gap:16px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.steps .num{font-family:var(--mono);font-weight:600;color:#fff;background:var(--teal);border-radius:8px;min-width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center}
.steps b{display:block;font-size:16px}
.steps small{display:block;font-size:14px;color:var(--text-2)}
.code{margin:0;background:var(--ink-2);border:1px solid var(--ink-line);border-radius:10px;padding:16px;font-family:var(--mono);font-size:14px;color:#E3EAF1;overflow-x:auto}
.stack{display:flex;flex-direction:column;gap:12px}
.guide{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--text)}
.guide:hover{border-color:var(--teal);color:var(--text)}
.guide b{font-size:17px}.guide>span:last-child{font-size:14px;color:var(--text-2)}

/* papers, news, road */
.papers{list-style:none;margin:0;padding:0}
.papers li{display:flex;flex-wrap:wrap;gap:6px 24px;align-items:baseline;padding:16px 0;border-bottom:1px solid var(--line)}
.papers .tag{flex:0 0 150px;font-size:13px}
.papers b{flex:1 1 380px;min-width:0;font-size:16px}
.papers a{font-size:13px;min-height:44px;display:inline-flex;align-items:center}
.news{border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:8px;background:#F9FAF7}
.news h3{font-size:17px}.news p{font-size:14px;color:var(--text-2)}
.road{list-style:none;margin:0;padding:0}
.road-item{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:6px}
.road-item .tag{color:var(--muted)}
.road-item b{font-size:17px}.road-item>span:last-child{font-size:14px;color:var(--text-2)}
.road-item.now{background:var(--teal);border-color:var(--teal);color:#fff}
.road-item.now .tag{color:#BFE6DE}.road-item.now>span:last-child{color:#E0F2EE}

.cta{background:var(--teal);color:#fff;border-radius:20px;padding:48px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta>div{flex:1 1 520px;display:flex;flex-direction:column;gap:10px}
.cta h2{font-size:clamp(24px,2.8vw,32px)}
.cta p{font-size:17px;color:#E0F2EE}

/* footer */
.foot{background:var(--ink);color:var(--on-ink-2)}
.foot-in{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;padding-top:48px;padding-bottom:48px}
.foot-main{flex:1 1 360px;display:flex;flex-direction:column;gap:8px;font-size:14px}
.foot-main strong{font-size:18px;color:var(--on-ink)}
.foot a{color:var(--mint)}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 24px;font-size:14px}
.foot-links a{color:#D5DEE8}
.foot-copy{flex:1 1 100%;font-size:13px;color:#8DA0B5;border-top:1px solid var(--ink-line);padding-top:18px}

/* register */
.reg{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-start;padding-top:64px;padding-bottom:96px}
.reg-copy{flex:1 1 360px;min-width:0;display:flex;flex-direction:column;gap:18px}
.reg-copy h1{font-size:clamp(30px,3.4vw,40px)}
.reg-panel{flex:1 1 520px;min-width:0;padding:36px}
.ticks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.ticks li{position:relative;padding-left:32px;font-size:15px;color:var(--text-2)}
.ticks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--mint-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.5l2.5 2.5L14 7.5' fill='none' stroke='%231A6B60' stroke-width='2'/%3E%3C/svg%3E") center/20px no-repeat}
form{display:flex;flex-direction:column;gap:20px}
.field{display:flex;flex-direction:column;gap:6px}
label,legend{font-size:14px;font-weight:600}
input[type=text],input[type=email],input:not([type]),textarea{min-height:46px;border:1px solid #C9D3CC;border-radius:10px;padding:10px 14px;font-size:16px;font-family:inherit;color:var(--text);background:#fff;width:100%}
textarea{resize:vertical}
input:focus,textarea:focus{border-color:var(--teal);outline:2px solid var(--mint-bg)}
fieldset{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
legend{padding:0 0 8px}
.radios{display:flex;flex-wrap:wrap;gap:8px}
.radio{position:relative;font-weight:400}
.radio input{position:absolute;opacity:0;width:1px;height:1px}
.radio span{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border-radius:999px;border:1px solid #C9D3CC;font-size:15px;cursor:pointer;background:#fff}
.radio input:checked+span{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:600}
.radio input:focus-visible+span{outline:3px solid var(--mint);outline-offset:2px}
.checks{gap:8px}
.check{display:flex;gap:10px;align-items:center;min-height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-size:15px;font-weight:400;cursor:pointer}
.check input,.check-plain input{width:18px;height:18px;accent-color:var(--teal);flex:0 0 18px}
.consent{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line-2);padding-top:18px}
.check-plain{display:flex;gap:10px;align-items:flex-start;font-size:14px;font-weight:400;color:var(--text-2);cursor:pointer}
.check-plain input{margin-top:3px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-msg{min-height:1.4em;color:#9B2C2C;font-size:15px}
form .btn{align-self:flex-start}
.thanks{display:flex;flex-direction:column;gap:14px;align-items:flex-start;padding:24px 0}
.thanks[hidden]{display:none}
.thanks h2{font-size:28px}.thanks p{color:var(--text-2)}

@media (max-width:640px){
  .hero{padding:40px 0 88px}
  .stat{border-right:0;border-bottom:1px solid var(--line-2)}
  .cta{padding:32px 24px}
  .panel,.reg-panel{padding:24px}
  .papers .tag{flex-basis:100%}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* live content from admin */
.announce{background:var(--amber-bg);border-bottom:1px solid #EBD9B5;color:var(--amber-dk);font-size:15px;font-weight:600}
.announce .wrap{padding-top:12px;padding-bottom:12px}
.announce a{color:var(--amber-dk);text-decoration:underline}
.news-pinned{border-color:var(--teal);background:var(--mint-bg)}
.news h3 a{color:inherit}
.closed-note{padding:28px;border-radius:12px;background:var(--amber-bg);color:var(--amber-dk);font-weight:600;font-size:17px}