:root{
  --bg:#eef1f4; --paper:#fff; --ink:#18232f; --muted:#5b6876; --line:#d5dce3;
  --accent:#1f5f8b; --accent-soft:#e2eef7; --ok:#1d7a4c; --ok-soft:#e1f3e9;
  --warn:#a35c00; --warn-soft:#fbefdc; --bad:#b3261e; --bad-soft:#fbe3e1;
  --display:"Anuphan","IBM Plex Sans Thai",system-ui,sans-serif;
  --body:"IBM Plex Sans Thai",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#11161c; --paper:#19212a; --ink:#e4e9ef; --muted:#93a0ad; --line:#2c3743;
  --accent:#6fb2e0; --accent-soft:#1c3243; --ok:#5ccb92; --ok-soft:#173528;
  --warn:#f0a94a; --warn-soft:#3a2a12; --bad:#f08a82; --bad-soft:#3d1c1a; color-scheme:dark}}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.7 var(--body)}
.wrap{max-width:900px;margin:0 auto;padding-inline:16px;padding-block:20px 80px}
header.top{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;padding-bottom:14px;border-bottom:2px solid var(--ink);margin-bottom:18px}
h1{font:700 1.65rem/1.25 var(--display);margin:0;text-wrap:balance}
h2{font:600 1.2rem/1.35 var(--display);margin:0 0 4px;text-wrap:balance}
h3{font:600 1.02rem/1.4 var(--display);margin:0}
a{color:var(--accent)}
.sub,.note{color:var(--muted);font-size:.88rem}
.code{font:500 .8rem var(--mono);color:var(--accent);letter-spacing:.04em}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px}
.stack{display:flex;flex-direction:column;gap:14px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.grow{flex:1 1 220px;min-width:0}
label.f{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--muted);flex:1 1 200px;min-width:0}
.stack>label.f{flex:none}
input[type=text],input[type=password],input[type=number],textarea,select{font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px 10px;width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn{font:600 .92rem var(--body);border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:var(--paper);padding:8px 16px;cursor:pointer}
.btn.ghost{background:transparent;color:var(--accent)}
.btn.danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed}
.rule{background:var(--warn-soft);border:1px solid var(--warn);border-radius:8px;padding:12px 14px;font-size:.9rem}
.rule b{color:var(--warn)}
.list{display:grid;gap:10px}
.card{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
.pill{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;font-weight:600;padding:2px 10px;border-radius:999px;white-space:nowrap}
.pill.ok{background:var(--ok-soft);color:var(--ok)} .pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.bad{background:var(--bad-soft);color:var(--bad)} .pill.info{background:var(--accent-soft);color:var(--accent)}
.dot{width:8px;height:8px;border-radius:50%;background:currentColor;display:inline-block}
.q{border-top:1px dashed var(--line);padding-top:16px;display:flex;flex-direction:column;gap:8px}
.q:first-of-type{border-top:0;padding-top:0}
.qtext{user-select:none;-webkit-user-select:none;font-weight:500;white-space:pre-wrap}
.qnum{font:500 .8rem var(--mono);color:var(--muted)}
textarea.ans{min-height:150px;resize:vertical;line-height:1.75}
.meta{display:flex;justify-content:space-between;font:500 .78rem var(--mono);color:var(--muted)}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--bad);color:#fff;padding:10px 18px;border-radius:8px;font-weight:600;font-size:.9rem;max-width:calc(100% - 32px);text-align:center;z-index:50}
.toast.ok{background:var(--ok)}
.tablewrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.88rem;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--muted);font-size:.8rem;white-space:nowrap}
tr.clk{cursor:pointer} tr.clk:hover td{background:var(--accent-soft)}
.answerbox{white-space:pre-wrap;background:var(--bg);border-radius:8px;padding:10px 12px;font-size:.92rem}
.empty{color:var(--muted);text-align:center;padding:28px 10px}
.mono{font-family:var(--mono)}
/* camera */
.camcheck{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:640px){.camcheck{grid-template-columns:1fr}}
.camframe{position:relative;background:#000;border-radius:10px;overflow:hidden;aspect-ratio:4/3;max-width:100%}
.camframe video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1);display:block}
.camstatus{position:absolute;left:8px;bottom:8px}
.dock{position:fixed;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));width:180px;z-index:40;box-shadow:0 6px 24px rgba(0,0,0,.25);border-radius:10px}
.dock .camframe{border:2px solid var(--ok)}
.dock.alert .camframe{border-color:var(--bad)}
@media (max-width:640px){.dock{width:120px}}
.block{position:fixed;inset:0;background:rgba(10,14,20,.88);z-index:45;display:flex;align-items:center;justify-content:center;padding:16px}
.block .panel{max-width:440px}
.timeline{display:flex;flex-direction:column;gap:8px}
.ev{display:grid;grid-template-columns:70px 1fr;gap:10px;align-items:start;font-size:.86rem}
.ev img{width:180px;max-width:100%;border-radius:6px;display:block;margin-top:4px;cursor:zoom-in}
.ev time{font:500 .78rem var(--mono);color:var(--muted)}
.shots{display:flex;flex-wrap:wrap;gap:8px}
.big{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:60;display:flex;align-items:center;justify-content:center;padding:16px;cursor:zoom-out}
.big img{max-width:100%;max-height:100%;border-radius:8px}
footer{margin-top:40px;color:var(--muted);font-size:.8rem;text-align:center}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}