@media(max-width:600px){input,textarea,select{font-size:16px !important}}
html,body{overflow-x:hidden;max-width:100vw}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#1d1d1f; --ink-2:#3a3a3c; --bg:#fff; --soft:#f5f5f7; --line:#e5e5ea; --mut:#6e6e73;
  --red:#e63946; --gold:#f5b340; --gold-ink:#7a5410;
  --stage:#101014; --ok:#0e9f6e; --amber:#d97706; --bad:#dc2626;
  --r-sm:8px; --r-md:11px; --r-lg:18px;
  --sat:env(safe-area-inset-top,0px);
}
body{font-family:'Inter','Noto Sans Thai',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--soft);color:var(--ink);min-height:100vh;-webkit-font-smoothing:antialiased;padding-bottom:48px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--red);outline-offset:2px;border-radius:5px}


.top{display:flex;align-items:center;gap:12px;padding:calc(12px + var(--sat)) 20px 12px;background:var(--ink);position:sticky;top:0;z-index:20}
.top .logo{height:24px;filter:brightness(0) invert(1)}
.top .brand{display:flex;flex-direction:column;line-height:1.15}
.top .brand b{font-size:15px;font-weight:800;color:#fff;letter-spacing:.4px}
.top .brand b::after{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--red);margin-left:7px;vertical-align:2px}
.top .brand span{font-size:11px;color:rgba(255,255,255,.72)}
.top .back{margin-left:auto;color:#fff;text-decoration:none;font-size:13px;font-weight:600;border:1px solid rgba(255,255,255,.25);border-radius:var(--r-sm);padding:8px 14px;white-space:nowrap;transition:background .16s}
.top .back:hover{background:rgba(255,255,255,.12)}
@media(max-width:480px){
  .top{gap:10px;padding-left:14px;padding-right:14px}
  .top .logo{display:none}
  .top .back{font-size:12px;padding:7px 11px}
}

.wrap{max-width:760px;margin:0 auto;padding:20px 16px}
.page-h1{font-size:22px;font-weight:800;line-height:1.3;letter-spacing:-.3px;margin:2px 2px 4px;text-wrap:balance}
.page-sub{font-size:13px;color:var(--mut);margin:0 2px 18px;line-height:1.5}


.up-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.up{display:flex;align-items:center;gap:12px;border:1px dashed #c9c9cf;border-radius:var(--r-md);padding:14px 16px;cursor:pointer;background:var(--bg);transition:border-color .16s,background .16s;min-height:64px}
.up:hover{border-color:var(--ink)}
.up .ico{flex-shrink:0;width:38px;height:38px;border-radius:var(--r-sm);background:var(--soft);display:flex;align-items:center;justify-content:center;font-size:19px}
.up .ttl{font-size:13.5px;font-weight:700;letter-spacing:-.1px}
.up .sub{font-size:11.5px;color:var(--mut);margin-top:2px}
.up.done{border:1px solid var(--ok);background:#f2fbf7}
.up.done .ico{background:#dcf5ea}
#camBtn{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:#fff;border:none;border-radius:var(--r-md);padding:14px;font-size:14px;font-weight:700;cursor:pointer;margin-bottom:16px;min-height:48px;transition:background .16s}
#camBtn:hover{background:#000}


.steps{display:flex;gap:6px;margin-bottom:16px}
.step{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:7px;background:var(--bg);border:1px solid var(--line);border-radius:9999px;padding:8px 10px;transition:border-color .16s}
.step .n{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:var(--soft);color:var(--mut);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:background .16s,color .16s}
.step .tx{font-size:12px;font-weight:600;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.step.on{border-color:var(--ink)}
.step.on .n{background:var(--ink);color:#fff}
.step.on .tx{color:var(--ink)}
.step.done .n{background:var(--ok);color:#fff}


.panel{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px}
.panel h2{font-size:12px;font-weight:700;letter-spacing:.8px;color:var(--mut);margin-bottom:14px;text-transform:uppercase}


.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.gcard{border:1px solid var(--line);border-radius:var(--r-md);padding:12px 6px;text-align:center;background:var(--bg);transition:border-color .2s}
.gcard .lab{font-size:10.5px;font-weight:700;letter-spacing:.8px;color:var(--mut)}
.gcard .val{font-size:28px;font-weight:800;margin:4px 0 2px;line-height:1;color:var(--ink);letter-spacing:-.5px}
.gcard .st{font-size:10.5px;font-weight:600;color:var(--mut)}
.g-ok{border-color:var(--ok)}.g-ok .val,.g-ok .st{color:var(--ok)}
.g-mid{border-color:var(--amber)}.g-mid .val,.g-mid .st{color:var(--amber)}
.g-bad{border-color:var(--bad)}.g-bad .val,.g-bad .st{color:var(--bad)}
.g-na .val{color:#c7c7cc}


.verdict{border-color:#d9d9df;background:linear-gradient(#fff,#fbfbfc)}
.verdict .v-head{display:flex;align-items:center;gap:10px;margin-bottom:9px}
.verdict .v-head b{font-size:15.5px;font-weight:800;letter-spacing:-.2px}
.verdict .v-dot{flex-shrink:0;width:10px;height:10px;border-radius:50%;background:var(--mut)}
.verdict .v-body{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin:0}
.verdict .v-body b{color:var(--ink)}


.stage{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:14px;margin-top:14px}
.bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px}
.seg{display:flex;background:var(--soft);border-radius:var(--r-md);padding:3px;gap:2px}
.seg button{background:none;border:none;color:var(--mut);font-size:12.5px;font-weight:700;padding:8px 14px;border-radius:var(--r-sm);cursor:pointer;letter-spacing:.2px;min-height:36px;transition:background .16s,color .16s}
.seg button.on{background:var(--ink);color:#fff}
.seg.fi button[data-frame=outer].on{background:#fff;color:var(--ink);box-shadow:0 0 0 1.5px var(--ink) inset}
.seg.fi button[data-frame=inner].on{background:var(--gold);color:#3a2700}
.tbtn{background:var(--bg);border:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:600;width:40px;height:40px;border-radius:var(--r-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:border-color .16s}
.tbtn:hover{border-color:var(--ink)}
.zlab{font-size:12px;color:var(--mut);min-width:42px;text-align:center;font-variant-numeric:tabular-nums}
.bar .rotwrap{display:flex;align-items:center;gap:7px;flex:1;min-width:120px}
.bar .rotwrap label{font-size:12px;color:var(--mut);white-space:nowrap}
@media(max-width:600px){ .bar .rotwrap{min-width:100%;order:9} }
.bar .slider{flex:1;accent-color:var(--ink)}
.adj-hint{font-size:12.5px;color:var(--red);text-align:center;margin:6px 0 -4px;font-weight:700}

.canvas-wrap{position:relative;background:var(--stage);border-radius:var(--r-md);overflow:hidden;touch-action:none;max-width:460px;margin:0 auto;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
canvas#cv{display:block;width:100%;height:auto;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:13px;text-align:center;padding:24px;pointer-events:none;line-height:1.7}
#loupe{position:absolute;width:118px;height:118px;border-radius:50%;border:2px solid #fff;box-shadow:0 4px 18px rgba(0,0,0,.5);overflow:hidden;display:none;pointer-events:none;z-index:5;background:#000}
#loupe canvas{width:100%;height:100%;display:block}
#liveReadout{display:none;width:fit-content;margin:10px auto 0;background:var(--ink);color:#fff;border:1.5px solid rgba(255,255,255,.14);border-radius:9999px;padding:8px 18px;font-size:14px;font-weight:800;white-space:nowrap;text-align:center;font-variant-numeric:tabular-nums}
@media(max-width:880px){#liveReadout.on{display:block}}

.hint{text-align:center;font-size:12px;color:var(--mut);margin-top:10px;line-height:1.7}
.hint b{color:var(--ink)}
.hint b.ow{color:var(--ink)}.hint b.iw{color:var(--gold-ink)}


.tools-row{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:12px}
.trbtn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);padding:10px 4px;cursor:pointer;min-height:56px;transition:border-color .16s,background .16s}
.trbtn b{font-size:17px;font-weight:400;color:var(--ink);line-height:1}
.trbtn span{font-size:11px;color:var(--mut);font-weight:600}
.trbtn:hover{border-color:var(--ink)}
.trbtn.auto{background:var(--red);border-color:var(--red)}
.trbtn.auto b{color:#fff}
.trbtn.auto span{color:rgba(255,255,255,.9)}
.trbtn.auto:hover{background:#c62f3b;border-color:#c62f3b}

.snapchk{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--mut);cursor:pointer;user-select:none;min-height:32px}
.snapchk input{accent-color:var(--ink);width:15px;height:15px}
.reset{background:var(--bg);border:1px solid var(--line);color:var(--mut);font-size:12px;font-weight:600;padding:8px 12px;border-radius:var(--r-sm);cursor:pointer;transition:border-color .16s,color .16s}
.reset:hover{border-color:var(--ink);color:var(--ink)}


.nudge{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap}
.nudge .grp{display:grid;grid-template-columns:repeat(3,34px);grid-template-rows:repeat(3,34px);gap:3px}
.nudge .grp button{background:var(--soft);border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;font-size:13px;color:var(--ink);display:flex;align-items:center;justify-content:center;transition:background .14s,color .14s}
.nudge .grp button:hover{background:var(--ink);color:#fff}
.nudge .grp .sp{visibility:hidden}
.nudge .lbl{font-size:12px;color:var(--mut);line-height:1.5}
.nudge .lbl b{color:var(--ink)}


.ratio{margin-bottom:14px}
.ratio .rh{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px}
.ratio .rh .name{color:var(--mut)}.ratio .rh .num{font-weight:700;font-variant-numeric:tabular-nums}
.rbar{height:10px;border-radius:5px;overflow:hidden;display:flex;background:var(--soft);position:relative}
.rbar .l{background:var(--ink)}.rbar .r{background:var(--gold)}
.rbar .mid{position:absolute;left:50%;top:-2px;bottom:-2px;width:1.5px;background:var(--red);opacity:.6}
.rpct{display:flex;justify-content:space-between;font-size:11px;margin-top:4px;color:var(--mut)}
.mtable{border-top:1px solid var(--line);margin-top:8px}
.mrow{display:flex;justify-content:space-between;padding:9px 2px;border-bottom:1px solid var(--line);font-size:13px}
.mrow .k{color:var(--mut)}.mrow .v{font-weight:600;font-variant-numeric:tabular-nums}
.tip{background:var(--soft);border-radius:var(--r-sm);padding:12px 14px;margin-top:14px;font-size:12px;color:var(--mut);line-height:1.65}
.tip b{color:var(--ink)}


.legend{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;margin-top:14px}
.legend h2{font-size:14px;font-weight:700;margin-bottom:12px;letter-spacing:-.1px}
.legend ul{list-style:none}
.legend li{display:flex;gap:10px;font-size:12.5px;color:var(--mut);margin-bottom:9px;line-height:1.55}
.legend li .dot{flex-shrink:0;width:11px;height:11px;border-radius:50%;margin-top:3px;border:1px solid var(--line)}
.legend li b{color:var(--ink);font-weight:600}
.disc{font-size:11px;color:var(--mut);margin-top:12px;line-height:1.65;border-top:1px solid var(--line);padding-top:11px}
.disc b{color:var(--ink)}


#camModal{display:none;position:fixed;inset:0;background:#000;z-index:60;flex-direction:column}
#camVideo{width:100%;height:100%;object-fit:cover;background:#000}
.cam-guide{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.cam-frame{position:absolute;top:46%;left:50%;transform:translate(-50%,-50%);width:74vw;max-width:330px;aspect-ratio:63/88;border:2px solid rgba(255,255,255,.92);border-radius:10px;box-shadow:0 0 0 9999px rgba(0,0,0,.45)}
.cam-frame::before,.cam-frame::after{content:'';position:absolute;background:rgba(255,255,255,.5)}
.cam-frame::before{left:50%;top:0;bottom:0;width:1px}
.cam-frame::after{top:50%;left:0;right:0;height:1px}
.cam-hint{position:absolute;top:13%;left:0;right:0;text-align:center;color:#fff;font-size:13px;padding:0 20px;text-shadow:0 1px 5px rgba(0,0,0,.7)}
.cam-top{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:calc(14px + var(--sat)) 14px 14px;z-index:3}
.cam-seg{display:flex;background:rgba(0,0,0,.55);border-radius:var(--r-md);padding:3px;gap:2px}
.cam-seg button{background:none;border:none;color:rgba(255,255,255,.75);font-size:13px;font-weight:600;padding:7px 16px;border-radius:var(--r-sm);cursor:pointer;min-height:40px}
.cam-seg button.on{background:#fff;color:var(--ink)}
.cam-x{background:rgba(0,0,0,.55);border:none;color:#fff;width:44px;height:44px;border-radius:50%;font-size:18px;cursor:pointer}
.cam-bar{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:center;padding:26px;background:linear-gradient(transparent,rgba(0,0,0,.6));z-index:3}
.cam-shutter{width:68px;height:68px;border-radius:50%;background:#fff;border:4px solid rgba(255,255,255,.45);cursor:pointer;transition:transform .12s}
.cam-shutter:active{transform:scale(.94)}


@media(max-width:880px){
  .up-row{grid-template-columns:1fr}
  canvas#cv{height:50vh;width:auto;max-width:100%;margin:0 auto}
  .grades{gap:6px;margin-bottom:10px}
  .gcard{padding:9px 3px}
  .gcard .lab{font-size:9.5px;letter-spacing:.4px}
  .gcard .val{font-size:21px;margin:3px 0 1px}
  .gcard .st{font-size:9.5px}
  .panel{padding:13px}
}
@media(max-width:600px){
  .seg{flex:1}
  .seg button{flex:1;min-height:42px}
  .tools-row{grid-template-columns:repeat(3,1fr)}
  .nudge .grp{grid-template-columns:repeat(3,38px);grid-template-rows:repeat(3,38px)}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
}