:root {
  --bg: #f6f7f9; --panel: #ffffff; --ink: #16181d; --muted: #6b7280;
  --line: #e2e5ea; --accent: #2563eb; --ok: #047857; --err: #b91c1c;
  --ok-bg: #e7f6ef; --err-bg: #fdeaea; --row-hover: #f3f5f8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a; --panel: #1c1f25; --ink: #e8eaed; --muted: #9aa1ab;
    --line: #2c313a; --accent: #6ea8fe; --ok: #6ee7b7; --err: #fca5a5;
    --ok-bg: #14322a; --err-bg: #3a1c1c; --row-hover: #232830;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", "Noto Sans Thai", "Sarabun", sans-serif;
}
a { color: var(--accent); }
header.top {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--line);
}
header.top .brand { font-weight: 650; letter-spacing: .2px; }
header.top nav { display: flex; gap: 14px; }
header.top .spacer { margin-left: auto; }
main { max-width: 1280px; margin: 0 auto; padding: 20px; }
.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 16px; margin-bottom: 18px;
}
h1 { font-size: 20px; margin: 0 0 14px; }
h2 { font-size: 15px; margin: 0 0 12px; color: var(--muted); font-weight: 600;
     text-transform: uppercase; letter-spacing: .06em; }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 3px; }
input, select, textarea, button {
  font: inherit; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; max-width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
button { cursor: pointer; background: var(--accent); color: #fff; border-color: transparent; font-weight: 550; }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); font-weight: 500; }
button.danger { background: transparent; color: var(--err); border: 1px solid var(--line); font-weight: 500; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.row-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted); border-bottom: 1px solid var(--line); padding: 8px 10px; white-space: nowrap;
}
td { padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:hover td { background: var(--row-hover); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.tight form { display: inline; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.pill {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  border: 1px solid var(--line); font-size: 12px; color: var(--muted);
}
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.error { background: var(--err-bg); color: var(--err); }
.jars { display: flex; gap: 10px; flex-wrap: wrap; }
.jar {
  flex: 1 1 150px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
}
.jar .k { font-size: 12px; color: var(--muted); }
.jar .v { font-size: 19px; font-variant-numeric: tabular-nums; margin-top: 2px; }
.jar.total { border-color: var(--accent); }
.login-wrap { max-width: 340px; margin: 12vh auto; }
.stack > * + * { margin-top: 12px; }