/* Work Study Agent — Document Intelligence Studio (light) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Sarabun:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --primary:#007aff; --primary-hover:#0a6ae6; --primary-light:#e8f2ff;
  --bg:#f7f8fa; --surface:#ffffff; --surface-2:#fbfcfd; --surface-3:#f1f3f6;
  --text:#11181f; --text-2:#4a5560; --text-3:#78838e;
  --border:#e3e7ec; --border-strong:#cdd4dc;
  --ok:#0f9d58; --ok-light:#e7f6ee; --warn:#d98300; --warn-light:#fdf3e2;
  --danger:#e0352b; --danger-light:#fdecea; --info:#007aff;
  --r-sm:4px; --r-md:6px; --r-lg:8px; --r-xl:10px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sh:0 1px 2px rgba(16,24,40,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body[data-lang="th"]{
  font-family:'Inter','Sarabun','Noto Sans Thai',system-ui,sans-serif;
  font-size:14px;
}
body[data-lang="th"] th{letter-spacing:0;text-transform:none;font-size:11px}
body[data-lang="th"] .kpi .l,body[data-lang="th"] .nav .grp{letter-spacing:0;text-transform:none;font-size:11px}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,system-ui,'Segoe UI','Roboto',sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;
  -webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums;
}
.num,td.num,input[type=number],.mono{font-variant-numeric:tabular-nums}
.mono{font-family:var(--mono)}
a{color:var(--primary);text-decoration:none}

/* ---------- layout ---------- */
.app{display:grid;grid-template-columns:232px 1fr;min-height:100vh}
.side{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{padding:16px;border-bottom:1px solid var(--border);display:flex;gap:10px;align-items:center}
.brand .mark{width:28px;height:28px;border-radius:var(--r-md);background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;font-size:13px;flex:0 0 auto}
.brand b{font-size:13.5px;font-weight:600;letter-spacing:-.01em;display:block}
.brand span{font-size:11px;color:var(--text-3)}
.nav{padding:8px;overflow:auto;flex:1}
.nav .grp{font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-3);padding:12px 8px 6px;font-weight:600}
.nav button{width:100%;display:flex;align-items:center;gap:9px;padding:7px 9px;border:0;background:none;border-radius:var(--r-md);
  font:inherit;font-size:13px;color:var(--text-2);cursor:pointer;text-align:left}
.nav button:hover{background:var(--surface-3);color:var(--text)}
.nav button.on{background:var(--primary-light);color:var(--primary);font-weight:600}
.nav button i{font-style:normal;width:16px;text-align:center;font-size:13px;opacity:.9}
.side .foot{padding:10px;border-top:1px solid var(--border);font-size:11px;color:var(--text-3)}

.main{min-width:0;display:flex;flex-direction:column}
.top{background:var(--surface);border-bottom:1px solid var(--border);padding:12px 20px;display:flex;gap:12px;align-items:center;position:sticky;top:0;z-index:20}
.top h1{font-size:16px;font-weight:600;letter-spacing:-.01em}
.top .sub{font-size:11.5px;color:var(--text-3)}
.top .sp{flex:1}
.wrap{padding:20px;max-width:1320px;width:100%}

/* ---------- primitives ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);box-shadow:var(--sh)}
.card>h3{font-size:13px;font-weight:600;padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
.card>h3 .sp{flex:1}
.card .body{padding:14px}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:1000px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.app{grid-template-columns:64px 1fr}.brand b,.brand span,.nav button span,.nav .grp,.side .foot{display:none}.nav button{justify-content:center}}
@media(max-width:700px){.g2,.g3,.g4{grid-template-columns:1fr}}

.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--border-strong);background:var(--surface);
  color:var(--text);border-radius:var(--r-md);font:inherit;font-size:13px;font-weight:500;cursor:pointer;transition:background .12s,border-color .12s}
.btn:hover{background:var(--surface-3)}
.btn.pri{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.pri:hover{background:var(--primary-hover);border-color:var(--primary-hover)}
.btn.dgr{color:var(--danger);border-color:#f3c9c6}
.btn.dgr:hover{background:var(--danger-light)}
.btn.sm{padding:4px 8px;font-size:12px}
.btn.lg{padding:10px 18px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.icon{padding:5px 7px}

label.f{display:block;font-size:11.5px;font-weight:600;color:var(--text-2);margin-bottom:4px}
input,select,textarea{width:100%;padding:7px 9px;border:1px solid var(--border-strong);border-radius:var(--r-md);
  font:inherit;font-size:13px;background:var(--surface);color:var(--text)}
input:focus,select,textarea:focus{outline:none}
input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,122,255,.12)}
textarea{resize:vertical;min-height:62px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.hint{font-size:11px;color:var(--text-3);margin-top:3px}

.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 7px;border-radius:5px;font-size:11px;font-weight:600;
  background:var(--surface-3);color:var(--text-2);border:1px solid var(--border)}
.badge.ok{background:var(--ok-light);color:var(--ok);border-color:#bfe6d1}
.badge.warn{background:var(--warn-light);color:var(--warn);border-color:#f0dcb6}
.badge.dgr{background:var(--danger-light);color:var(--danger);border-color:#f3c9c6}
.badge.pri{background:var(--primary-light);color:var(--primary);border-color:#c9e0ff}

.tabs{display:flex;gap:2px;border-bottom:1px solid var(--border);margin-bottom:16px;overflow:auto}
.tabs button{padding:9px 13px;border:0;background:none;font:inherit;font-size:13px;font-weight:500;color:var(--text-2);
  cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}
.tabs button:hover{color:var(--text)}
.tabs button.on{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}

table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-3);font-weight:600;
  padding:8px 10px;border-bottom:1px solid var(--border);background:var(--surface-2);white-space:nowrap}
td{padding:7px 10px;border-bottom:1px solid var(--border);vertical-align:middle}
tbody tr:hover{background:var(--surface-2)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tfoot td{font-weight:600;background:var(--surface-2);border-top:1px solid var(--border-strong)}
.tbl-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--r-lg);background:var(--surface)}
.tbl-wrap table{font-size:12.5px}
table input,table select{padding:4px 6px;font-size:12.5px;min-width:60px}

.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:12px 14px}
.kpi .l{font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-3);font-weight:600}
.kpi .v{font-size:23px;font-weight:600;letter-spacing:-.02em;margin-top:3px;font-variant-numeric:tabular-nums}
.kpi .v small{font-size:12px;font-weight:500;color:var(--text-3);margin-left:3px}
.kpi .d{font-size:11.5px;color:var(--text-3);margin-top:2px}
.kpi.accent{border-color:#c9e0ff;background:var(--primary-light)}
.kpi.accent .v{color:var(--primary)}

.bar{height:6px;background:var(--surface-3);border-radius:3px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--primary);border-radius:3px;transition:width .3s}
.empty{text-align:center;padding:44px 20px;color:var(--text-3)}
.empty b{display:block;color:var(--text-2);font-size:14px;margin-bottom:5px}
.sep{height:1px;background:var(--border);margin:14px 0}

/* ASME symbols */
.sym{display:inline-grid;place-items:center;width:22px;height:22px;font-size:11px;font-weight:700;flex:0 0 auto}
.sym.OP{border-radius:50%;background:#e8f2ff;color:#0a6ae6;border:1.5px solid #0a6ae6}
.sym.TR{background:#eaf6ee;color:#0f9d58;border:1.5px solid #0f9d58;clip-path:polygon(0 20%,62% 20%,62% 0,100% 50%,62% 100%,62% 80%,0 80%)}
.sym.IN{background:#fdf3e2;color:#b5700a;border:1.5px solid #b5700a;border-radius:2px}
.sym.DE{background:#fdecea;color:#c22b22;border:1.5px solid #c22b22;border-radius:11px 0 0 11px;border-left-width:3px}
.sym.ST{background:#f1f3f6;color:#4a5560;border:1.5px solid #4a5560;clip-path:polygon(0 0,100% 0,50% 100%)}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--text-2);align-items:center}
.legend>span{display:flex;gap:6px;align-items:center}
.va{background:var(--ok-light)!important}
.nva{background:var(--danger-light)!important}

/* stopwatch */
.sw{font-family:var(--mono);font-size:46px;font-weight:500;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.sw.run{color:var(--primary)}
.chip{display:inline-flex;gap:5px;align-items:center;padding:3px 8px;border:1px solid var(--border);border-radius:5px;font-size:11.5px;background:var(--surface-2)}
.el-active{box-shadow:inset 3px 0 0 var(--primary)}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--text);color:#fff;padding:9px 16px;
  border-radius:var(--r-md);font-size:13px;z-index:200;box-shadow:0 4px 12px rgba(0,0,0,.18);animation:up .2s}
@keyframes up{from{opacity:0;transform:translate(-50%,8px)}}
dialog{border:1px solid var(--border);border-radius:var(--r-xl);padding:0;max-width:560px;width:92%;box-shadow:0 12px 32px rgba(16,24,40,.16)}
dialog::backdrop{background:rgba(16,24,40,.35)}
dialog h3{font-size:14px;font-weight:600;padding:13px 16px;border-bottom:1px solid var(--border)}
dialog .body{padding:16px}
dialog .act{padding:12px 16px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end;background:var(--surface-2)}
.list-item{display:flex;gap:12px;align-items:center;padding:11px 14px;border-bottom:1px solid var(--border);cursor:pointer}
.list-item:last-child{border-bottom:0}
.list-item:hover{background:var(--surface-2)}
.list-item b{font-size:13.5px;font-weight:600;display:block}
.list-item .m{font-size:11.5px;color:var(--text-3)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media print{
  .side,.top,.tabs,.no-print,.btn{display:none!important}
  .app{grid-template-columns:1fr}.wrap{padding:0;max-width:none}
  .card{break-inside:avoid;box-shadow:none;border-color:#bbb}
  body{background:#fff;font-size:11px}
}