:root{
  --bg:#ffffff; --panel:#f7f7f7; --panel2:#efefef; --ink:#141414; --muted:#666; --line:#e8e8e8; --faint:#9e9e9e;
  --red:#E00000; --mid:#CC0000; --deep:#990000; --ok:#1f9e54; --red-soft:rgba(224,0,0,.07);
  --r:10px; --r-sm:8px;
  --font:'IBM Plex Sans Thai','Sarabun',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --nav-w:232px; --top-h:60px;
}
:root[data-theme="dark"]{
  --bg:#0a0a0a; --panel:#161616; --panel2:#1f1f1f; --ink:#f5f5f5; --muted:#9e9e9e; --line:#2a2a2a; --faint:#6f6f6f;
  --red:#FF2A2A; --mid:#E00000; --ok:#46d17e; --red-soft:rgba(255,42,42,.1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}
[hidden]{display:none !important}
.mono{font-family:var(--mono)}
.muted{color:var(--muted)}
.ic{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ic.big{width:44px;height:44px;stroke-width:1.6}
.logo-dk{display:none}
:root[data-theme="dark"] .logo-lt{display:none}
:root[data-theme="dark"] .logo-dk{display:inline-block}

/* header */
.top{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}
.top-in{max-width:1180px;margin:0 auto;height:var(--top-h);padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.brand-mark{border-radius:9px;display:block}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt strong{font-size:18px;font-weight:700;letter-spacing:.2px}
.brand-txt small{font-size:12px;color:var(--muted)}
.top-actions{display:flex;align-items:center;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);font-size:13px;color:var(--muted);background:var(--panel);white-space:nowrap}
button.chip{cursor:pointer;font-family:inherit;line-height:1.4}
button.chip:hover{border-color:var(--faint)}
.chip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--faint)}
.chip.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 35%,var(--line))}
.chip.ok::before{background:var(--ok)}
.chip.demo{color:var(--red);border-color:color-mix(in srgb,var(--red) 35%,var(--line));background:var(--red-soft)}
.chip.demo::before{background:var(--red)}
.icon-btn{display:inline-flex;align-items:center;gap:6px;height:38px;min-width:38px;justify-content:center;padding:0 10px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);cursor:pointer;color:var(--ink)}
.icon-btn:hover{background:var(--panel)}
.icon-btn[aria-pressed="true"]{border-color:var(--red);color:var(--red);background:var(--red-soft)}
.icon-btn .lbl{font-size:14px}

/* banners */
.banner,.demo-bar{max-width:1180px;margin:14px auto 0;padding:12px 16px;border:1px solid var(--line);border-left:3px solid var(--red);border-radius:var(--r);background:var(--panel);display:flex;gap:12px;align-items:flex-start;font-size:14.5px;width:calc(100% - 40px)}
.banner .ic,.demo-bar .ic{color:var(--red);margin-top:2px}
.banner strong{display:block;margin-bottom:2px}
.banner .btn{margin-top:8px}
.demo-bar{align-items:center;flex-wrap:wrap}
.demo-bar .grow{flex:1;min-width:200px}
.demo-bar .btn{height:34px;padding:0 12px;font-size:14px}

/* shell */
.shell{max-width:1180px;margin:0 auto;padding:24px 20px 56px;display:grid;grid-template-columns:var(--nav-w) minmax(0,1fr);gap:32px;align-items:start}
.nav{position:sticky;top:calc(var(--top-h) + 24px);display:flex;flex-direction:column;gap:4px}
.nav-i{display:flex;align-items:center;gap:12px;height:46px;padding:0 14px;border:0;border-radius:var(--r-sm);background:transparent;color:var(--muted);cursor:pointer;text-align:left;font-weight:500}
.nav-i:hover{background:var(--panel);color:var(--ink)}
.nav-i[aria-selected="true"]{background:var(--red-soft);color:var(--red);font-weight:600}
.main{min-width:0}
.panel{display:flex;flex-direction:column;gap:20px}
.panel-head .kicker{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--red);display:flex;align-items:center;gap:8px;margin-bottom:6px}
.panel-head .kicker::before{content:"";width:16px;height:2px;background:var(--red)}
.panel-head h1{font-size:30px;font-weight:700;line-height:1.25}
.panel-head p{color:var(--muted);margin-top:4px;max-width:60ch}
.h-sm{font-size:17px;font-weight:600}

.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 18px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--bg);color:var(--ink);font-weight:500;cursor:pointer;transition:background .15s,border-color .15s}
.btn:hover{background:var(--panel);border-color:var(--faint)}
.btn.primary{background:var(--red);border-color:var(--red);color:#fff}
.btn.primary:hover{background:var(--mid);border-color:var(--mid)}
.btn.danger{color:var(--red);border-color:color-mix(in srgb,var(--red) 40%,var(--line))}
.btn.danger:hover{background:var(--red-soft);border-color:var(--red)}
.btn.ghost{border-color:transparent;color:var(--muted)}
.btn.lg{height:52px;padding:0 28px;font-size:17px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.btn-row.center{justify-content:center}

/* scan card */
.scan-card{display:flex;flex-direction:column;align-items:center;gap:16px;padding:36px 20px;text-align:center}
.scan-state{color:var(--muted);min-height:1.5em}
.scan-state.live{color:var(--red);font-weight:600}
.rings{position:relative;width:132px;height:132px;display:grid;place-items:center;color:var(--red)}
.rings .ic.big{position:relative;z-index:2}
.rings i{position:absolute;inset:0;border-radius:50%;border:2px solid var(--red);opacity:0;transform:scale(.5)}
.rings::before{content:"";position:absolute;inset:26px;border-radius:50%;background:var(--red-soft)}
.rings.on i,.scanning .rings i{animation:ring 2.4s ease-out infinite}
.rings i:nth-child(2){animation-delay:.8s !important}
.rings i:nth-child(3){animation-delay:1.6s !important}
@keyframes ring{0%{opacity:.55;transform:scale(.45)}100%{opacity:0;transform:scale(1.15)}}
@media (prefers-reduced-motion:reduce){.rings.on i,.scanning .rings i{animation:none;opacity:.25;transform:scale(.8)}}

/* read result */
.res{display:flex;flex-direction:column;gap:14px}
.res-sum{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.stat{background:var(--panel);border-radius:var(--r-sm);padding:12px 14px}
.stat small{display:block;color:var(--muted);font-size:12.5px}
.stat strong{font-family:var(--mono);font-size:15px;font-weight:500;word-break:break-all}
.rec{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg)}
.rec-h{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--panel);border-bottom:1px solid var(--line)}
.rec-h .ti{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;background:var(--red-soft);color:var(--red);flex:none}
.rec-h .tt{flex:1;min-width:0}
.rec-h .tt strong{display:block;font-weight:600;line-height:1.3}
.rec-h .tt small{color:var(--muted);font-family:var(--mono);font-size:12px;word-break:break-all}
.rec-b{padding:14px}
.val{font-family:var(--mono);font-size:14px;background:var(--panel);border-radius:var(--r-sm);padding:10px 12px;word-break:break-all;white-space:pre-wrap;max-height:240px;overflow:auto}
.meta{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:10px;font-size:13px;color:var(--muted)}
.meta b{color:var(--ink);font-weight:500}
.rec-b details{margin-top:10px;font-size:13.5px}
.rec-b summary{cursor:pointer;color:var(--muted)}
.hex{margin-top:8px;font-family:var(--mono);font-size:12.5px;word-break:break-all;color:var(--muted)}
.rec-act{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.rec-act .btn,.res-act .btn{height:36px;padding:0 12px;font-size:14px}
.res-act{display:flex;flex-wrap:wrap;gap:8px}
.empty{padding:28px 16px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--r)}

/* composer */
#composer{display:flex;flex-direction:column;gap:14px}
.crec .rec-h .act{display:flex;gap:4px}
.crec .rec-h .act .icon-btn{height:34px;min-width:34px;padding:0 6px}
.crec .rec-b{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.crec .rec-b .full{grid-column:1/-1}
.crec .err{grid-column:1/-1;color:var(--red);font-size:13.5px}
.hint{grid-column:1/-1;color:var(--muted);font-size:13.5px}
.field{display:flex;flex-direction:column;gap:5px;font-size:14px}
.field>span{color:var(--muted);font-weight:500}
.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);min-height:44px}
.field textarea{min-height:92px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--red);outline-offset:-1px;border-color:var(--red)}
.field.inline{flex-direction:row;align-items:center;gap:10px;margin-top:14px}
.field.inline select{width:auto;flex:1;max-width:260px}
.check{display:flex;align-items:flex-start;gap:10px;margin-top:12px;cursor:pointer;font-size:15px}
.check input{width:20px;height:20px;margin-top:2px;accent-color:var(--red);flex:none}
.add-card .h-sm{margin-bottom:12px}
.kind-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.kind{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);cursor:pointer;text-align:left;font-size:14.5px}
.kind:hover{border-color:var(--red);background:var(--red-soft)}
.kind .ic{color:var(--red)}
.cap-top{display:flex;justify-content:space-between;gap:10px;font-size:14px;margin-bottom:8px;flex-wrap:wrap}
.bar{height:8px;border-radius:99px;background:var(--panel2);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--red);border-radius:99px;transition:width .2s}
.bar i.over{background:var(--deep)}

/* tools */
.tool{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.tool p{color:var(--muted);font-size:14.5px}
.tool .btn{margin-top:auto}
.tool-ic{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;background:var(--red-soft);color:var(--red)}
.tool.wide{width:100%}
.steps{width:100%;display:flex;flex-direction:column;gap:10px}
.step{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);flex-wrap:wrap}
.step .n{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--panel2);font-family:var(--mono);font-size:13px;flex:none}
.step.done .n{background:var(--ok);color:#fff}
.step.cur{border-color:var(--red)}
.step.cur .n{background:var(--red);color:#fff}
.step .t{flex:1;min-width:140px}
.step .t small{display:block;color:var(--muted)}
.step .btn{height:38px;padding:0 14px;font-size:14px}
.unsup{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.unsup li{padding:12px 14px;background:var(--panel);border-radius:var(--r-sm);display:flex;flex-direction:column;font-size:14.5px}
.unsup li span{color:var(--muted);font-size:13px}

/* my data */
.seg{display:inline-flex;padding:3px;background:var(--panel);border-radius:var(--r-sm);border:1px solid var(--line);align-self:flex-start}
.seg-i{border:0;background:transparent;padding:8px 18px;border-radius:6px;cursor:pointer;color:var(--muted);font-weight:500}
.seg-i[aria-selected="true"]{background:var(--bg);color:var(--ink);box-shadow:0 0 0 1px var(--line)}
.list{display:flex;flex-direction:column;gap:10px}
.item{display:flex;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:var(--r);flex-wrap:wrap}
.item .tx{flex:1;min-width:180px}
.item .tx strong{display:block;font-weight:600;word-break:break-word}
.item .tx small{color:var(--muted);font-size:13px;word-break:break-word}
.item .act{display:flex;gap:6px;flex-wrap:wrap}
.item .act .btn{height:36px;padding:0 12px;font-size:14px}
.tag{font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;padding:3px 8px;border-radius:5px;background:var(--panel2);color:var(--muted)}

/* overlay / modal */
.overlay{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.5);display:grid;place-items:center;padding:20px}
.overlay-in{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:32px 28px;max-width:380px;width:100%;display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px}
.overlay-in p{color:var(--muted);font-size:15px}
.modal-in{background:var(--bg);border:1px solid var(--line);border-radius:14px;width:100%;max-width:460px;max-height:calc(100dvh - 40px);display:flex;flex-direction:column}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}
.modal-head h2{font-size:18px;font-weight:600}
.modal-body{padding:18px;overflow:auto;display:flex;flex-direction:column;gap:12px}
.modal-body p{color:var(--muted);font-size:15px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 18px;border-top:1px solid var(--line);flex-wrap:wrap}
.qr-box{display:flex;flex-direction:column;align-items:center;gap:12px}
.qr-box canvas{width:min(100%,320px);height:auto;image-rendering:pixelated;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff}
.qr-box .val{width:100%;max-height:120px}

/* first-visit NFC gate */
.gate{position:fixed;inset:0;z-index:70;background:var(--bg);overflow:auto;display:grid;place-items:center;padding:24px 16px calc(24px + env(safe-area-inset-bottom))}
.gate-in{width:100%;max-width:520px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;margin:auto}
.gate h2{font-size:26px;font-weight:700;line-height:1.3}
.g-mark{border-radius:14px}
.g-p{color:var(--muted);max-width:46ch}
.g-p b{color:var(--ink)}
.gsteps{list-style:none;margin:4px 0 0;padding:0;display:flex;gap:0;width:100%;max-width:420px;justify-content:space-between;position:relative}
.gsteps::before{content:"";position:absolute;left:16%;right:16%;top:15px;height:2px;background:var(--line)}
.gsteps li{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;position:relative;color:var(--faint)}
.gsteps li span{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--bg);border:2px solid var(--line);font-family:var(--mono);font-size:13px}
.gsteps li small{font-size:13px}
.gsteps li.cur{color:var(--ink)}
.gsteps li.cur span{border-color:var(--red);background:var(--red);color:#fff}
.gsteps li.done span{border-color:var(--ok);background:var(--ok);color:#fff}
.gsteps li .ic{width:16px;height:16px;stroke-width:2.6}
.g-rows{list-style:none;margin:0;padding:0;width:100%;display:flex;flex-direction:column;gap:8px}
.g-rows li{display:flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--r-sm);text-align:left;font-size:15px}
.g-rows li span{color:var(--muted);flex:1}
.g-rows li strong{font-weight:600}
.g-rows li.ok .ic{color:var(--ok)}
.g-rows li.bad .ic{color:var(--red)}
.g-how{width:100%;text-align:left;background:var(--panel);border-radius:var(--r);padding:14px 16px;font-size:14.5px}
.g-how ol{margin:8px 0 0;padding-left:20px;color:var(--muted);display:flex;flex-direction:column;gap:4px}
.g-how b{color:var(--ink);font-weight:600}
.g-err{width:100%;display:flex;gap:10px;align-items:flex-start;text-align:left;padding:12px 14px;border:1px solid color-mix(in srgb,var(--red) 40%,var(--line));border-radius:var(--r-sm);background:var(--red-soft);color:var(--red);font-size:14.5px}
.g-state{font-size:14.5px;color:var(--muted)}
.g-state b{color:var(--ink)}
.g-check{margin-top:0;justify-content:center}
.g-act{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;width:100%}
.g-ok{width:72px;height:72px;border-radius:50%;display:grid;place-items:center;background:var(--ok);color:#fff}
.g-ok .ic{width:36px;height:36px;stroke-width:2.6}
a.btn{text-decoration:none}
@media (max-width:620px){.g-act .btn{flex:1 1 100%}.gate h2{font-size:23px}}
@media (orientation:landscape) and (max-height:520px){.gate{place-items:start center}}

/* toast */
.toasts{position:fixed;right:20px;bottom:20px;z-index:80;display:flex;flex-direction:column;gap:8px;align-items:flex-end;pointer-events:none}
.toast{pointer-events:auto;display:flex;gap:10px;align-items:flex-start;max-width:min(420px,calc(100vw - 40px));padding:12px 14px;border-radius:var(--r-sm);background:var(--ink);color:var(--bg);font-size:14.5px;animation:tin .2s ease-out}
.toast.ok .ic{color:#46d17e}
.toast.err .ic{color:#ff6b6b}
@keyframes tin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.foot{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}

/* tablet / mobile */
@media (max-width:860px){
  .shell{grid-template-columns:minmax(0,1fr);gap:0;padding:20px 16px calc(96px + env(safe-area-inset-bottom))}
  .top-in{padding:0 16px}
  .banner,.demo-bar{width:calc(100% - 32px)}
  .nav{position:fixed;left:0;right:0;bottom:0;top:auto;z-index:40;flex-direction:row;gap:0;padding:6px 8px calc(6px + env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--line)}
  .nav-i{flex:1;flex-direction:column;justify-content:center;gap:2px;height:56px;padding:0 4px;font-size:12.5px;text-align:center}
  .panel-head{text-align:center}
  .panel-head .kicker{justify-content:center}
  .panel-head p{margin-left:auto;margin-right:auto}
  .panel-head h1{font-size:26px}
  .seg{align-self:center}
  .foot{justify-content:center;text-align:center}
  .toasts{left:16px;right:16px;bottom:calc(84px + env(safe-area-inset-bottom));align-items:center}
}
@media (max-width:620px){
  .demo-bar,.banner{flex-direction:column;align-items:center;text-align:center}
  .demo-bar .btn,.banner .btn{width:100%}
  .grid2,.unsup{grid-template-columns:minmax(0,1fr)}
  .crec .rec-b{grid-template-columns:minmax(0,1fr)}
  .brand-txt small{display:none}
  .icon-btn .lbl{display:none}
  .chip{font-size:12px;padding:3px 8px}
  .btn-row .btn{flex:1 1 100%}
  .tool{align-items:center;text-align:center}
  .card{padding:16px}
  .item{justify-content:center;text-align:center}
  .item .act{justify-content:center}
  .rec-act,.res-act{justify-content:center}
  .field.inline{flex-direction:column;align-items:stretch}
  .field.inline select{max-width:none}
}
@media (max-width:380px){.top-actions{gap:6px}.brand-txt strong{font-size:16px}.chip{font-size:11.5px;padding:3px 7px}}
@media (orientation:landscape) and (max-height:520px){
  .scan-card{padding:18px}
  .rings{width:96px;height:96px}
  .nav-i{height:46px}
  .overlay-in{padding:18px}
  .overlay-in .rings{width:90px;height:90px}
}