:root{
    --bg:#FBF4EA;
    --surface:#FFFFFF;
    --surface-2:#F7EADC;
    --surface-3:#F0DDC8;
    --border:#E9D7C2;
    --text:#3A2128;
    --text-muted:#8A6A72;
    --accent:#B51F45;
    --accent-strong:#8E1636;
    --accent-soft:#FBE7EC;
    --on-accent:#FFFFFF;
    --gold:#D9B37C;
    --good:#3F8F5F;
    --good-soft:#E3F2E8;
    --warn:#B8791A;
    --warn-soft:#FAEFDC;
    --critical:#C0392B;
    --critical-soft:#FBE7E3;
    --focus:#B51F45;
    --shadow:0 1px 2px rgba(58,33,40,.06),0 8px 24px -12px rgba(58,33,40,.20);
    --radius-s:10px;
    --radius-m:16px;
    --radius-l:22px;
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --bg:#1E1418;
      --surface:#2A1C22;
      --surface-2:#34232A;
      --surface-3:#3F2B33;
      --border:#47323A;
      --text:#F8EDE9;
      --text-muted:#C4A6AD;
      --accent:#F08AA5;
      --accent-strong:#F7B3C4;
      --accent-soft:#3E222C;
      --on-accent:#2A0E18;
      --gold:#D9B37C;
      --good:#7ED0A0;
      --good-soft:#1F3327;
      --warn:#EAC069;
      --warn-soft:#3A2C13;
      --critical:#EE9184;
      --critical-soft:#3C1E1B;
      --focus:#F08AA5;
      --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.5);
    }
  }
  :root[data-theme="dark"]{
    --bg:#1E1418;
    --surface:#2A1C22;
    --surface-2:#34232A;
    --surface-3:#3F2B33;
    --border:#47323A;
    --text:#F8EDE9;
    --text-muted:#C4A6AD;
    --accent:#F08AA5;
    --accent-strong:#F7B3C4;
    --accent-soft:#3E222C;
    --on-accent:#2A0E18;
    --gold:#D9B37C;
    --good:#7ED0A0;
    --good-soft:#1F3327;
    --warn:#EAC069;
    --warn-soft:#3A2C13;
    --critical:#EE9184;
    --critical-soft:#3C1E1B;
    --focus:#F08AA5;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.5);
  }

  *{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'Sarabun',-apple-system,'Noto Sans Thai',sans-serif;
    font-size:15px;
    line-height:1.55;
    padding-inline:16px;
    padding-block:0 40px;
  }
  h1,h2,h3,.display{
    font-family:'Chonburi','Sarabun',sans-serif;
    font-weight:400;
    text-wrap:balance;
    letter-spacing:.2px;
  }
  .mono{font-family:'JetBrains Mono',ui-monospace,monospace; font-variant-numeric:tabular-nums;}
  a{color:var(--accent);}
  button{font-family:inherit;}
  ::selection{background:var(--accent-soft);}
  :focus-visible{outline:2px solid var(--focus); outline-offset:2px; border-radius:6px;}

  .wrap{max-width:980px;margin:0 auto;}

  /* ---------- Top bar ---------- */
  .topbar{
    position:sticky; top:0; z-index:30;
    border-top:3px solid var(--gold);
    background:color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
    padding-block:14px 10px;
    margin-inline:-16px; padding-inline:16px;
  }
  .brand-row{display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;}
  .brand{display:flex; align-items:center; gap:11px;}
  .brand .logo{height:38px; width:auto; flex:none;}
  .brand h1{font-size:21px; margin:0; color:var(--accent-strong);}
  .brand .tag{font-size:12px; color:var(--text-muted); font-family:'Sarabun';}

  .userchip{
    display:flex; align-items:center; gap:8px;
    background:var(--surface); border:1px solid var(--border);
    border-radius:999px; padding:6px 8px 6px 14px;
    box-shadow:var(--shadow); font-size:13.5px;
  }
  .userchip .dot{width:8px;height:8px;border-radius:50%;background:var(--good);flex:none;}
  .userchip .dot.off{background:var(--text-muted);}
  .userchip button{
    border:none; background:var(--accent-soft); color:var(--accent-strong);
    padding:5px 11px; border-radius:999px; font-size:12.5px; font-weight:600; cursor:pointer;
  }
  .userchip button:hover{filter:brightness(0.97);}

  .tabs{
    display:flex; gap:6px; margin-top:12px; overflow-x:auto; padding-bottom:2px;
    scrollbar-width:thin;
  }
  .tabs::-webkit-scrollbar{height:5px;}
  .tabs::-webkit-scrollbar-thumb{background:var(--border); border-radius:3px;}
  .tab{
    flex:none; border:1px solid var(--border); background:var(--surface);
    color:var(--text-muted); padding:8px 14px; border-radius:999px;
    font-size:13.5px; font-weight:600; cursor:pointer; white-space:nowrap;
  }
  .tab[aria-selected="true"]{background:var(--accent); border-color:var(--accent); color:var(--on-accent);}
  .tab.admin{border-style:dashed;}

  main{padding-top:20px;}
  section.view{display:none;}
  section.view.active{display:block;}

  .lede{color:var(--text-muted); font-size:14px; max-width:62ch;}
  .banner{
    display:flex; gap:10px; align-items:flex-start;
    background:var(--warn-soft); color:var(--text); border:1px solid var(--border);
    border-left:4px solid var(--warn); border-radius:var(--radius-s);
    padding:12px 14px; font-size:13.5px; margin-block:14px;
  }
  .banner.info{background:var(--accent-soft); border-left-color:var(--accent);}
  .banner b{color:inherit;}

  /* ---------- Cards ---------- */
  .card{
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-m); padding:18px; box-shadow:var(--shadow);
  }
  .stack{display:flex; flex-direction:column; gap:14px;}
  .grid-cards{display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:10px;}

  /* role picker grid */
  .role-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:12px; margin-top:14px;}
  .role-card{
    text-align:left; cursor:pointer; border:1px solid var(--border); background:var(--surface);
    border-radius:var(--radius-m); padding:16px; display:flex; flex-direction:column; gap:6px;
    box-shadow:var(--shadow);
  }
  .role-card:hover{border-color:var(--accent);}
  .role-card .rn{font-family:'Chonburi'; font-size:17px; color:var(--accent-strong);}
  .role-card .rc{font-size:12.5px; color:var(--text-muted);}
  .role-card .rk{font-size:12px; color:var(--text-muted); background:var(--surface-2); align-self:flex-start; padding:2px 9px; border-radius:999px; margin-top:4px;}

  /* sop detail */
  .sop-head{display:flex; justify-content:space-between; align-items:flex-start; gap:12px; flex-wrap:wrap;}
  .backlink{border:none;background:none;color:var(--accent);font-weight:600;font-size:13.5px;cursor:pointer;padding:0;margin-bottom:8px;}
  .printbtn{border:1px solid var(--border); background:var(--surface); border-radius:999px; padding:8px 16px; font-size:13px; font-weight:600; color:var(--text); cursor:pointer;}
  .printbtn:hover{border-color:var(--accent); color:var(--accent-strong);}

  .duty-list{margin:10px 0 0; padding-left:1.2em; display:flex; flex-direction:column; gap:6px;}
  .duty-list li{font-size:14px;}

  .phase{border:1px solid var(--border); border-radius:var(--radius-m); overflow:hidden; background:var(--surface);}
  .phase > summary{
    list-style:none; cursor:pointer; padding:13px 16px; display:flex; align-items:center; justify-content:space-between;
    background:var(--surface-2); font-weight:600; font-size:14.5px;
  }
  .phase > summary::-webkit-details-marker{display:none;}
  .phase > summary .badge{
    font-family:'JetBrains Mono'; font-size:12px; color:var(--text-muted); background:var(--surface);
    border:1px solid var(--border); border-radius:999px; padding:2px 9px;
  }
  .phase > summary .chev{transition:transform .15s;}
  .phase[open] > summary .chev{transform:rotate(90deg);}
  .phase-body{padding:6px 4px;}

  .task-row{display:flex; align-items:flex-start; gap:11px; padding:11px 14px; border-top:1px solid var(--border);}
  .task-row:first-child{border-top:none;}
  .task-row input[type=checkbox]{
    width:20px; height:20px; accent-color:var(--accent); margin-top:1px; flex:none; cursor:pointer;
  }
  .task-row label{font-size:14px; cursor:pointer;}
  .task-row.checked label{color:var(--text-muted); text-decoration:line-through;}

  .std-block{background:var(--accent-soft); border-radius:var(--radius-m); padding:14px 16px;}
  .rule-banner{
    background:var(--accent); color:var(--on-accent); border-radius:var(--radius-m);
    padding:13px 18px; font-family:'Chonburi'; font-size:16px; text-align:center;
    margin-block:14px; letter-spacing:.3px;
  }
  .std-block h3{margin:0 0 8px; font-size:14.5px; color:var(--accent-strong); font-family:'Sarabun'; font-weight:700;}

  /* stat tiles */
  .stat-row{display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:10px;}
  .stat{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-m); padding:14px 16px;}
  .stat .k{font-size:12px; color:var(--text-muted); text-transform:uppercase; letter-spacing:.05em;}
  .stat .v{font-family:'JetBrains Mono'; font-size:26px; font-weight:700; margin-top:2px;}
  .stat .v.good{color:var(--good);} .stat .v.warn{color:var(--warn);} .stat .v.critical{color:var(--critical);}

  table{border-collapse:collapse; width:100%; font-size:13.5px;}
  .tbl-wrap{overflow-x:auto; border:1px solid var(--border); border-radius:var(--radius-m); background:var(--surface);}
  th,td{padding:10px 12px; text-align:left; border-bottom:1px solid var(--border); white-space:nowrap;}
  th{font-size:11.5px; text-transform:uppercase; letter-spacing:.04em; color:var(--text-muted); background:var(--surface-2);}
  tr:last-child td{border-bottom:none;}
  td.num{font-family:'JetBrains Mono'; text-align:right;}

  .pill{display:inline-flex; align-items:center; gap:5px; padding:3px 10px; border-radius:999px; font-size:12px; font-weight:600;}
  .pill.good{background:var(--good-soft); color:var(--good);}
  .pill.warn{background:var(--warn-soft); color:var(--warn);}
  .pill.critical{background:var(--critical-soft); color:var(--critical);}
  .pill.neutral{background:var(--surface-2); color:var(--text-muted);}

  .bar{height:8px; border-radius:999px; background:var(--surface-3); overflow:hidden;}
  .bar > i{display:block; height:100%; background:var(--good); border-radius:999px;}

  /* forms */
  label.field{display:flex; flex-direction:column; gap:5px; font-size:13px; font-weight:600; color:var(--text-muted);}
  input[type=text],input[type=number],input[type=date],input[type=password],select,textarea{
    font-family:inherit; font-size:14px; padding:9px 11px; border-radius:var(--radius-s);
    border:1px solid var(--border); background:var(--surface); color:var(--text); width:100%;
  }
  textarea{resize:vertical; min-height:64px;}
  .btn{
    border:1px solid var(--accent); background:var(--accent); color:var(--on-accent);
    padding:9px 18px; border-radius:999px; font-size:13.5px; font-weight:700; cursor:pointer;
  }
  .btn:hover{filter:brightness(1.05);}
  .btn.ghost{background:transparent; color:var(--accent-strong);}
  .btn.danger{background:var(--critical); border-color:var(--critical);}
  .btn.sm{padding:6px 13px; font-size:12.5px;}
  .btn[disabled]{opacity:.5; cursor:not-allowed;}
  .form-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:10px;}
  .inline-form{display:flex; gap:8px; flex-wrap:wrap; align-items:flex-end;}

  .row-between{display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap;}

  .pin-gate{max-width:340px; margin:60px auto; text-align:center;}
  .pin-gate input{text-align:center; letter-spacing:.4em; font-size:20px; font-family:'JetBrains Mono';}

  .list-edit-row{display:flex; gap:8px; align-items:center; margin-bottom:8px;}
  .list-edit-row input{flex:1;}
  .list-edit-row input.pts{max-width:90px; flex:none;}
  .iconbtn{border:1px solid var(--border); background:var(--surface); border-radius:8px; width:34px; height:34px; flex:none; cursor:pointer; color:var(--critical); font-weight:700;}

  .footer-note{color:var(--text-muted); font-size:12px; text-align:center; margin-top:34px;}

  @media (max-width:560px){
    th,td{padding:8px 8px; font-size:12.5px;}
    .brand h1{font-size:18px;}
  }

  @media print{
    body *{visibility:hidden;}
    .topbar,.no-print{display:none !important;}
    #print-area, #print-area *{visibility:visible;}
    #print-area{position:absolute; inset:0; padding:0;}
  }
/* ---------- Login ---------- */
#login{ min-height:100dvh; display:grid; place-items:center; padding:24px 16px; }
.login-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-l);
  padding:32px 28px; box-shadow:var(--shadow); width:100%; max-width:390px; text-align:center;
}
.login-card .logo{ height:54px; width:auto; margin-bottom:10px; }
.login-card h1{ font-size:24px; margin:0 0 4px; color:var(--accent-strong); }
.login-card .field{ text-align:left; }
.login-card .err{ color:var(--critical); font-size:13px; min-height:18px; margin:10px 0 0; }

/* ---------- Toast ---------- */
.toast{
  position:fixed; left:50%; bottom:-80px; transform:translateX(-50%);
  background:var(--accent); color:var(--on-accent); padding:11px 22px;
  border-radius:999px; font-size:13.5px; font-weight:600; box-shadow:var(--shadow);
  transition:bottom .25s ease; z-index:90; max-width:90vw;
}
.toast.show{ bottom:24px; }
.toast.bad{ background:var(--critical); color:#fff; }

.loading{ padding:40px 0; text-align:center; color:var(--text-muted); }
code, .mono{ font-family:'JetBrains Mono',ui-monospace,monospace; }