:root{
  --steel:#2E5A87;
  --steel-bright:#4A82B8;
  --orange:#FF5722;
  --ivory:#F2F4F6;
  --charcoal:#1A1D21;
  --bg:#14171C;
  --card:#1F242B;
  --card-line:#2C333C;
  --muted:#AEB8C2;
  --font:"Noto Sans Thai","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font);
  background:radial-gradient(1200px 600px at 50% -10%,rgba(46,90,135,.25),transparent 60%),var(--bg);
  color:var(--ivory);
  display:flex;flex-direction:column;min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:960px;width:100%;margin:0 auto;padding:0 24px;flex:1;display:flex;flex-direction:column}
header.bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 0;border-bottom:1px solid var(--card-line);
}

.brand{align-items:center}
.brand .logo{height:34px;width:auto;margin-right:12px;display:block}
.brand{display:flex;align-items:baseline;gap:6px;font-weight:900;font-size:22px;letter-spacing:.3px}
.brand .th{color:var(--steel-bright);font-size:24px}
.brand .en{color:var(--ivory)}
.brand .en .colon{color:var(--orange)}
.brand .sub{color:var(--muted);font-weight:700;font-size:14px;margin-left:8px;letter-spacing:1.5px;text-transform:uppercase}
.partner{font-size:11px;color:var(--muted);letter-spacing:1.2px;text-transform:uppercase}
main{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:48px 0}
.eyebrow{color:var(--orange);font-weight:800;letter-spacing:3px;text-transform:uppercase;font-size:12px;margin-bottom:16px}
h1{font-size:clamp(30px,5vw,48px);font-weight:900;line-height:1.1;margin-bottom:14px}
h1 .accent{color:var(--steel-bright)}
.tagline-en{font-size:18px;color:var(--ivory);font-weight:600;margin-bottom:6px}
.tagline-th{font-size:15px;color:var(--muted);margin-bottom:36px}
.options{display:flex;gap:20px;flex-wrap:wrap;justify-content:center;width:100%;max-width:680px}
.opt{
  flex:1;min-width:260px;background:var(--card);border:1px solid var(--card-line);
  border-radius:16px;padding:32px 28px;text-align:left;text-decoration:none;color:var(--ivory);
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;display:block;
}
.opt:hover{transform:translateY(-4px);border-color:var(--steel-bright);box-shadow:0 12px 40px rgba(0,0,0,.35)}
.opt .ic{font-size:30px;margin-bottom:14px;display:block}
.opt h2{font-size:20px;font-weight:800;margin-bottom:8px}
.opt p{font-size:14px;color:var(--muted);line-height:1.5}
.opt.primary{border-color:var(--orange)}
.opt.primary .ic{color:var(--orange)}
.opt.primary:hover{border-color:var(--orange);box-shadow:0 12px 44px rgba(255,87,34,.25)}
.opt.secondary .ic{color:var(--steel-bright)}
.note{margin-top:28px;font-size:13px;color:var(--muted);max-width:560px;line-height:1.6}
/* portal */
.panel{width:100%;max-width:620px;background:var(--card);border:1px solid var(--card-line);border-radius:18px;padding:40px;text-align:left}
.panel h2{font-size:24px;font-weight:800;margin-bottom:8px}
.panel .sub{color:var(--muted);font-size:14px;margin-bottom:24px;line-height:1.6}
.drop{
  border:2px dashed var(--card-line);border-radius:14px;padding:40px 20px;text-align:center;
  background:rgba(46,90,135,.06);transition:border-color .15s,background .15s;cursor:pointer;
}
.drop.hover{border-color:var(--steel-bright);background:rgba(46,90,135,.14)}
.drop .big{font-size:34px;margin-bottom:10px}
.drop .fmt{color:var(--muted);font-size:13px;margin-top:8px}
.drop input{display:none}
.filechip{display:none;margin-top:18px;padding:12px 16px;background:rgba(255,87,34,.1);border:1px solid rgba(255,87,34,.4);border-radius:10px;font-size:14px;color:var(--ivory)}
.filechip.show{display:block}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  margin-top:26px;width:100%;padding:15px 20px;border-radius:12px;border:none;cursor:pointer;
  font-family:var(--font);font-weight:800;font-size:15px;text-decoration:none;
  background:var(--orange);color:#fff;transition:filter .15s,transform .1s;
}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:scale(.99)}
.btn.ghost{background:transparent;border:1px solid var(--card-line);color:var(--ivory)}
.btn.ghost:hover{border-color:var(--steel-bright)}
.btn:disabled{opacity:.45;cursor:not-allowed}
/* received */
.check{width:72px;height:72px;border-radius:50%;background:rgba(255,87,34,.12);border:2px solid var(--orange);
  display:flex;align-items:center;justify-content:center;font-size:34px;color:var(--orange);margin:0 auto 22px}
.received .sub{text-align:center}
.status{margin-top:18px;font-size:13px;color:var(--muted);text-align:center}
footer.bar{padding:18px 0;border-top:1px solid var(--card-line);display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}
footer a{color:var(--steel-bright);text-decoration:none}
@media(max-width:560px){.options{flex-direction:column}.panel{padding:28px 22px}}