:root{--ink:#103e48;--green:#258372;--mint:#dff5eb;--coral:#f57863;--paper:#fffefa;--muted:#526d72;--line:#d6e4de;font-family:"Trebuchet MS","Segoe UI",Tahoma,"Noto Sans Thai","Sarabun",sans-serif;color:var(--ink);background:var(--paper);font-size:16px}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}a{color:inherit}.skip{position:absolute;top:-90px;background:var(--ink);color:white;padding:16px;z-index:10}.skip:focus{top:0}.review{text-align:center;background:var(--mint);font-size:10px;font-weight:700;letter-spacing:1.3px;padding:9px 16px}header{max-width:1240px;margin:auto;padding:34px 48px;display:flex;justify-content:space-between;align-items:center}.brand{text-decoration:none;font-size:24px;font-weight:800;letter-spacing:-1px}.brand span{color:var(--green)}#language{background:none;color:var(--ink);border:1px solid var(--line);border-radius:24px;padding:10px 17px;font-size:14px;font-weight:700}main{max-width:1240px;margin:20px auto 90px;padding:0 48px;display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:start}.intro{position:sticky;top:45px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:800;color:var(--green);margin:24px 0}h1{font-size:clamp(62px,6.8vw,88px);letter-spacing:-4px;line-height:1.02;margin:0 0 28px}h1 span{color:var(--green)}.lead{max-width:370px;font-size:19px;line-height:1.7;margin:0 0 28px}.event-meta{display:flex;gap:12px;flex-wrap:wrap;max-width:380px}.event-meta span{border-top:1px solid var(--line);padding-top:13px;font-size:11px;font-weight:800;letter-spacing:1px}.ocean{margin:24px 0 14px}.ocean svg{width:100%;height:auto}.aside-note{color:var(--muted);font-size:13px;line-height:1.8;max-width:350px}.registration{background:white;padding:32px;border:1px solid var(--line);border-radius:24px;box-shadow:0 18px 60px #103e4805}h2{font-size:31px;letter-spacing:-1px;line-height:1.25;margin:4px 0 12px}.sub{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:25px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}.field.full{grid-column:1/-1}label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}label small{font-weight:400;color:var(--muted)}input:not([type=checkbox]){width:100%;border:1px solid #b8ccc4;background:#fff;border-radius:10px;padding:13px 12px;color:var(--ink);min-width:0;min-height:47px}input::placeholder{color:#7b8d90;font-size:14px}input:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #258372;outline-offset:3px}input[aria-invalid=true]{border-color:#ae3d2d;box-shadow:0 0 0 1px #ae3d2d}.help{color:var(--muted);font-size:12px;line-height:1.6;margin:7px 0 0}.field-error{color:#a93627;font-size:12px;margin:6px 0 0}.error-summary{background:#fff0eb;border-left:3px solid var(--coral);padding:13px 15px;margin:20px 0;font-size:14px;line-height:1.65}.error-summary:empty{display:none}details{margin-top:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0}summary{font-size:14px;font-weight:700;cursor:pointer;line-height:1.7}details .fields{margin-top:20px}.check{display:flex;gap:10px;align-items:flex-start;margin:20px 0 0;font-size:12px;font-weight:400;line-height:1.8}.check input{width:18px;height:18px;flex-shrink:0;margin-top:3px;accent-color:var(--green)}.privacy{font-size:12px;line-height:1.8;color:var(--muted);background:#f4f9f6;padding:15px;border-radius:10px;margin-top:23px}.privacy strong{color:var(--ink)}.submit{width:100%;margin-top:24px;background:var(--coral);border:0;border-radius:12px;padding:16px 20px;font-weight:800;font-size:16px;color:var(--ink);min-height:54px}.submit:hover{background:#f48a76}.submit:disabled{cursor:wait;opacity:.65}.small-note{font-size:12px;line-height:1.7;color:var(--muted);margin:16px 0 0}.trap{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}.confirmation{padding:20px 0;min-height:440px}.checkmark{background:var(--mint);color:var(--green);width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-size:20px;font-weight:700;margin-bottom:27px}.confirmation .sub{font-size:16px}.receipt{border-top:1px solid var(--line);padding-top:20px;margin-top:28px;font-size:14px;line-height:1.9}.receipt strong{display:block}.reference-note{padding:15px;background:var(--mint);border-radius:12px;font-size:13px;line-height:1.8;margin-top:25px}footer{max-width:1144px;margin:0 auto;padding:24px 0;border-top:1px solid var(--line);font-size:10px;letter-spacing:1.5px;color:var(--muted)}footer span{color:var(--coral);margin:0 10px}@media(max-width:900px){header{padding:25px 25px}main{padding:0 25px;gap:35px;grid-template-columns:.85fr 1fr}.registration{padding:25px}h1{font-size:65px}.fields{grid-template-columns:1fr}.field.full{grid-column:auto}footer{margin:0 25px}}@media(max-width:650px){header{padding:18px 21px}.brand{font-size:21px}main{display:block;margin:5px auto 45px;padding:0 20px}.intro{position:static}.eyebrow{font-size:10px;margin:18px 0}h1{font-size:62px;letter-spacing:-3px;margin-bottom:20px}.lead{font-size:16px;line-height:1.7;max-width:100%;margin-bottom:20px}.ocean{display:none}.aside-note{font-size:12px;max-width:none;margin:18px 0 28px}.registration{padding:25px 21px;border-radius:20px}h2{font-size:28px}.fields{grid-template-columns:1fr;gap:19px}.review{font-size:9px;letter-spacing:.6px}footer{font-size:9px;margin:0 21px}.confirmation{min-height:370px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}

.brand,h1,h2,.eyebrow,.event-meta,.review,footer{font-family:"Montserrat","Noto Sans Thai","Sarabun",sans-serif;font-weight:700}.brand,h1,.eyebrow,.event-meta{font-weight:800}

.venue-link{color:var(--green);text-decoration:underline;text-underline-offset:3px}.venue-link:hover{color:var(--ink)}
