/* RRR Registration Check: same look as /rrr-decklist (efin sky ground, rainbow hairline, Prompt) */
:root{
  --sky:#dbe8f7; --sky2:#a9c6ea; --paper:#ffffff; --panel:#f2f2f4;
  --navy:#22205f; --ink:#262626; --muted:#5f5e7f; --line:#c9c8dc;
  --violet:#5439bc; --pink:#e5409a; --ok:#1a8a5a; --okbg:#e3f5ec; --warn:#b4560b; --warnbg:#fff1e0; --bad:#c2185b; --badbg:#fde8f1;
  --grad:linear-gradient(90deg,#29277d,#2e64c0 22%,#41b0e3 40%,#a57fc0 55%,#e5409a 70%,#ef5040 85%,#f8ad2a);
  --cta:linear-gradient(90deg,#5439bc,#c23fb0);
  --f:"Prompt","Noto Sans Thai","Leelawadee UI",Tahoma,system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0;background:linear-gradient(180deg,var(--sky2),var(--sky) 340px,var(--sky));color:var(--ink);font-family:var(--f);font-size:15px;line-height:1.55;min-height:100vh}
.wrap{max-width:760px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:20px 48px}
.rain{height:6px;background:var(--grad)}
header.top{display:flex;flex-direction:column;gap:10px;margin:8px 0 20px}
header.top img{height:46px;width:auto;align-self:flex-start}
header.top h1{margin:0;font-weight:900;font-size:clamp(28px,6vw,42px);line-height:1.05;color:var(--navy);text-wrap:balance}
header.top h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
header.top p{margin:0;font-weight:500;color:var(--navy)}
.meta{font-size:13px;font-weight:500;color:var(--navy)}
.meta b{font-weight:800}
.stack{display:flex;flex-direction:column;gap:18px;min-width:0}
.card{background:var(--paper);border-radius:22px;padding:20px;box-shadow:0 10px 30px rgba(34,32,95,.10)}
.why{background:linear-gradient(135deg,#fff,#f6f1ff);border:2px solid #e4dcff}
.why h2{margin:0 0 6px;font-size:17px;font-weight:800;color:var(--navy)}
.why p{margin:0 0 6px;font-size:14px}
.why .due{display:inline-block;margin-top:6px;padding:4px 12px;border-radius:999px;background:var(--cta);color:#fff;font-weight:800;font-size:13px}
.step{display:flex;align-items:baseline;gap:10px;margin:0 0 4px}
.step i{font-style:normal;flex:none;width:28px;height:28px;border-radius:50%;background:var(--cta);color:#fff;font-weight:800;font-size:14px;display:grid;place-items:center}
.step h2{margin:0;font-size:19px;font-weight:800;color:var(--navy)}
.hint{margin:0 0 12px;color:var(--muted);font-size:13.5px}
.hint a{color:var(--violet);font-weight:700}
label{display:block;font-size:12.5px;font-weight:700;color:var(--violet);margin-bottom:4px}
input{width:100%;border:2px solid var(--line);border-radius:12px;padding:11px 14px;font:500 16px var(--f);color:var(--navy);background:#fbfbfd;min-width:0}
input:focus{outline:3px solid #a57fc0;outline-offset:1px;border-color:var(--violet)}
.inrow{display:flex;gap:10px;flex-wrap:wrap}
.inrow input{flex:1 1 220px}
button{font:inherit;cursor:pointer;border:0;border-radius:999px;padding:11px 22px;font-weight:700;white-space:nowrap}
button:focus-visible{outline:3px solid #f8ad2a;outline-offset:2px}
button:disabled{opacity:.55;cursor:progress}
.primary{background:var(--cta);color:#fff;box-shadow:0 6px 16px rgba(84,57,188,.3)}
.ghost{background:var(--panel);color:var(--navy)}
.small{padding:6px 14px;font-size:13px}
.result{margin-top:14px;padding:12px 14px;border-radius:14px;font-size:14px;font-weight:600}
.result b{font-weight:800}
.result.ok{background:var(--okbg);color:var(--ok)}
.result.bad{background:var(--badbg);color:var(--bad)}
.result.warn{background:var(--warnbg);color:var(--warn)}
.result .big{display:block;font-size:17px;font-weight:800;margin-bottom:2px}
.result a{color:inherit;font-weight:800}
.saved{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;padding:12px 14px;border-radius:14px;background:var(--panel);margin-bottom:12px}
.saved .rid{font-weight:800;font-size:18px;color:var(--navy);word-break:break-all}
.saved .lbl{display:block;font-size:12px;font-weight:700;color:var(--muted)}
.hide{display:none!important}
.info{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;font-size:14px}
.info li{display:grid;grid-template-columns:18px minmax(0,1fr);gap:8px}
.info li::before{content:"►";color:var(--violet);font-size:11px;line-height:2}
.info a{color:var(--violet);font-weight:700}
.cta-link{display:inline-flex;align-items:center;gap:8px;margin-top:4px;color:var(--violet);font-weight:800;text-decoration:none}
.cta-link:hover{text-decoration:underline}
.ids{list-style:none;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px}
.ids li{padding:9px 12px;border-radius:12px;background:var(--panel);font-weight:700;color:var(--navy);word-break:break-all;font-size:14px}
.ids li mark{background:#fde58a;color:inherit;border-radius:3px}
.ids li.me{background:var(--okbg);color:var(--ok)}
.empty{margin-top:14px;color:var(--muted);font-weight:600}
footer{margin-top:28px;font-size:12.5px;color:var(--muted);text-align:center}
@media (max-width:480px){.card{padding:16px;border-radius:18px}.inrow button{width:100%}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}