:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --line: #e2e7ee;
  --line-strong: #cfd7e3;
  --ink: #1a2230;
  --ink-2: #5a6779;
  --ink-3: #8a95a5;
  --brand: #1c6bd8;
  --brand-dark: #14509f;
  --brand-soft: #e8f0fd;
  --ok: #17794a;
  --ok-soft: #e3f5ec;
  --warn: #9a6100;
  --warn-soft: #fdf1dc;
  --bad: #c02d2d;
  --bad-soft: #fdeaea;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20,32,54,.06), 0 4px 16px rgba(20,32,54,.06);
}

* { box-sizing: border-box; }

/* ต้องมี !important เพราะ .login-wrap ตั้ง display:grid ไว้ ซึ่งชนะ [hidden] ปกติ */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans Thai", "Sarabun",
               "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.35; margin: 0; font-weight: 700; }
a { color: var(--brand); }
code, .mono { font-family: "SF Mono", "Menlo", "Consolas", monospace; }

/* ── โครงหน้า ─────────────────────────────────────────── */
header.top {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
}
.top-inner {
  max-width: 1280px; margin: 0 auto; padding: 10px 20px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.logo { font-weight: 800; font-size: 17px; letter-spacing: -.2px; white-space: nowrap; }
.logo small { display: block; font-weight: 500; font-size: 11.5px; color: var(--ink-3); letter-spacing: 0; }
.top-spacer { flex: 1; }
.whoami { text-align: right; font-size: 13px; line-height: 1.4; }
.whoami b { display: block; }
.whoami span { color: var(--ink-3); font-size: 12px; }

nav.tabs {
  max-width: 1280px; margin: 0 auto; padding: 0 12px;
  display: flex; gap: 2px; overflow-x: auto;
}
nav.tabs button {
  background: none; border: 0; border-bottom: 2.5px solid transparent;
  padding: 9px 13px; font: inherit; font-size: 14px; color: var(--ink-2);
  cursor: pointer; white-space: nowrap; border-radius: 6px 6px 0 0;
}
nav.tabs button:hover { background: var(--bg); color: var(--ink); }
nav.tabs button.on { color: var(--brand); border-bottom-color: var(--brand); font-weight: 700; }

main { max-width: 1280px; margin: 0 auto; padding: 20px; }
.page { display: none; }
.page.on { display: block; animation: fade .18s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

/* ── กล่อง ─────────────────────────────────────────────── */
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; margin-bottom: 16px;
}
.card > h2 { font-size: 16px; margin-bottom: 4px; }
.card > .sub { color: var(--ink-2); font-size: 13.5px; margin-bottom: 14px; }
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ── ตัวเลขสรุป ────────────────────────────────────────── */
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow); cursor: default;
}
.stat.click { cursor: pointer; transition: transform .12s, box-shadow .12s; }
.stat.click:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(20,32,54,.10); }
.stat .n { font-size: 30px; font-weight: 800; letter-spacing: -.6px; line-height: 1.15; }
.stat .l { font-size: 13px; color: var(--ink-2); }
.stat .h { font-size: 11.5px; color: var(--ink-3); margin-top: 2px; }
.stat.good .n { color: var(--ok); }
.stat.warn .n { color: var(--warn); }
.stat.bad  .n { color: var(--bad); }
.stat.blue .n { color: var(--brand); }

.bar-track { height: 10px; border-radius: 6px; background: var(--line); overflow: hidden; display: flex; }
.bar-track i { display: block; height: 100%; }

/* ── ปุ่ม ──────────────────────────────────────────────── */
button, .btn {
  font: inherit; font-size: 14px; cursor: pointer;
  border: 1px solid var(--line-strong); background: #fff; color: var(--ink);
  padding: 7px 14px; border-radius: 8px; transition: background .12s, border-color .12s;
}
button:hover:not(:disabled), .btn:hover { background: var(--bg); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
button.primary:hover:not(:disabled) { background: var(--brand-dark); border-color: var(--brand-dark); }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; font-weight: 600; }
button.danger:hover:not(:disabled) { background: #a02222; }
button.sm { padding: 4px 10px; font-size: 13px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ── ฟอร์ม ─────────────────────────────────────────────── */
label.field { display: block; margin-bottom: 12px; }
label.field > span { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 4px; font-weight: 600; }
input, select, textarea {
  font: inherit; font-size: 14px; width: 100%;
  padding: 8px 11px; border: 1px solid var(--line-strong); border-radius: 8px;
  background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft);
}
textarea { min-height: 64px; resize: vertical; }
.hint { font-size: 12.5px; color: var(--ink-3); margin-top: 3px; }

/* ── ตาราง ─────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th {
  background: #f8fafc; font-size: 12.5px; color: var(--ink-2); font-weight: 700;
  position: sticky; top: 0; z-index: 2; white-space: nowrap;
}
tbody tr:hover { background: #f8fbff; }
tbody tr.sel { background: var(--brand-soft); }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.tbl-scroll { max-height: 62vh; overflow-y: auto; }

/* ── ป้ายสถานะ ─────────────────────────────────────────── */
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 99px;
  font-size: 12px; font-weight: 700; white-space: nowrap; border: 1px solid transparent;
}
.tag.used { background: var(--brand-soft); color: var(--brand-dark); }
.tag.free { background: var(--ok-soft); color: var(--ok); }
.tag.erp  { background: #ede9fd; color: #5b34c4; }
.tag.no   { background: #f1f3f7; color: var(--ink-3); }
.tag.warn { background: var(--warn-soft); color: var(--warn); }
.tag.bad  { background: var(--bad-soft); color: var(--bad); }

/* ── แผงรายละเอียดด้านข้าง ─────────────────────────────── */
.drawer-bg {
  position: fixed; inset: 0; background: rgba(16,24,40,.35);
  z-index: 60; opacity: 0; pointer-events: none; transition: opacity .18s;
}
.drawer-bg.on { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(460px, 100%);
  background: #fff; z-index: 61; box-shadow: -8px 0 30px rgba(16,24,40,.16);
  transform: translateX(100%); transition: transform .22s cubic-bezier(.4,0,.2,1);
  display: flex; flex-direction: column;
}
.drawer.on { transform: none; }
.drawer header {
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px;
}
.drawer header h3 { flex: 1; font-size: 16px; }
.drawer .body { flex: 1; overflow-y: auto; padding: 18px; }

.bc-preview {
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 14px; text-align: center;
}
.bc-preview svg { max-width: 100%; height: auto; }

dl.kv { display: grid; grid-template-columns: 108px 1fr; gap: 6px 12px; margin: 0; font-size: 14px; }
dl.kv dt { color: var(--ink-2); font-size: 13px; }
dl.kv dd { margin: 0; word-break: break-word; }

/* ── ข้อความแจ้งเตือน ──────────────────────────────────── */
.note { padding: 11px 14px; border-radius: 8px; font-size: 13.5px; border: 1px solid transparent; }
.note.info { background: var(--brand-soft); border-color: #c6dcfa; color: var(--brand-dark); }
.note.good { background: var(--ok-soft); border-color: #bfe6d2; color: var(--ok); }
.note.warn { background: var(--warn-soft); border-color: #f2ddb4; color: var(--warn); }
.note.bad  { background: var(--bad-soft); border-color: #f6c9c9; color: var(--bad); }

.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 16px);
  background: #1a2230; color: #fff; padding: 10px 18px; border-radius: 8px;
  font-size: 14px; z-index: 100; opacity: 0; pointer-events: none;
  transition: opacity .18s, transform .18s; max-width: 90vw; box-shadow: var(--shadow);
}
.toast.on { opacity: 1; transform: translate(-50%, 0); }
.toast.bad { background: var(--bad); }
.toast.good { background: var(--ok); }

/* ── หน้าเข้าสู่ระบบ ───────────────────────────────────── */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 30px; width: min(400px, 100%); box-shadow: 0 10px 40px rgba(20,32,54,.10);
}
.login h1 { font-size: 21px; margin-bottom: 4px; }
.login p.sub { color: var(--ink-2); font-size: 13.5px; margin: 0 0 22px; }

/* ── ตารางสิทธิ์ ───────────────────────────────────────── */
.perm td, .perm th { text-align: center; }
.perm td:first-child, .perm th:first-child { text-align: left; }
.perm .yes { color: var(--ok); font-weight: 800; }
.perm .no  { color: var(--ink-3); }

.chip {
  display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12.5px;
  background: var(--bg); border: 1px solid var(--line); margin: 0 4px 4px 0; cursor: pointer;
}
.chip.on { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }

.empty { padding: 34px; text-align: center; color: var(--ink-3); font-size: 14px; }
.spinner { display: inline-block; width: 15px; height: 15px; border: 2px solid var(--line-strong);
  border-top-color: var(--brand); border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 640px) {
  main { padding: 14px; }
  .card { padding: 14px; }
  .stat .n { font-size: 25px; }
  dl.kv { grid-template-columns: 90px 1fr; }
}

@media print {
  header.top, nav.tabs, .drawer-bg, button { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none; border: 1px solid #ccc; }
}

/* ── ตัวเลือกหมวดที่มองเห็นได้ (หน้าผู้ใช้) ─────────────── */
.cat-picker { display: flex; flex-wrap: wrap; gap: 5px; }
.cat-picker label {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border: 1px solid var(--line-strong); border-radius: 99px;
  font-size: 12.5px; cursor: pointer; user-select: none; background: #fff;
  transition: background .12s, border-color .12s, color .12s;
}
.cat-picker label:hover { border-color: var(--brand); }
.cat-picker input { width: auto; margin: 0; }
.cat-picker label.on { background: var(--brand-soft); border-color: var(--brand); color: var(--brand-dark); font-weight: 600; }
.cat-picker.inherited label { opacity: .62; border-style: dashed; }
.cat-picker.locked { opacity: .5; pointer-events: none; }