:root {
  --bg: #f4f6f8;
  --card: #fff;
  --ink: #1a2332;
  --muted: #5c6b7a;
  --line: #d8dee6;
  --accent: #0b5f8a;
  --accent-2: #094a6b;
  --ok: #1b7a4e;
  --warn: #9a6b00;
  --danger: #b42318;
  --radius: 10px;
  font-family: "Anuphan", "Sarabun", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: linear-gradient(180deg, #e8eef3 0%, var(--bg) 40%);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: #f7fafc;
  color: var(--ink);
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--line);
}
.topbar__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
}
.brand:hover { text-decoration: none; }
.brand__logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 0;
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
}
.brand img { height: 36px; width: auto; display: block; }
.nav a {
  color: var(--muted);
  margin-left: 0.85rem;
  font-size: 0.95rem;
  font-weight: 500;
}
.nav a:hover { color: var(--accent); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem;
  flex: 1 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.page-head h1 { margin: 0 0 0.35rem; font-size: 1.55rem; }
.page-head p { margin: 0; color: var(--muted); }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-top: 1rem;
  overflow: hidden;
}
.panel__head {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  background: #fafbfc;
}
.panel__head h2 { margin: 0; font-size: 1.05rem; }
.panel__body { padding: 1rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 0;
  border-radius: 8px;
  padding: 0.55rem 0.95rem;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-2); text-decoration: none; color: #fff; }
.btn--ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn--ghost:hover { background: #f3f6f9; color: var(--ink); }
.btn--danger { background: var(--danger); }
.btn--sm { padding: 0.35rem 0.65rem; font-size: 0.85rem; }

.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}
.alert--error { background: #fdecea; color: #7a1d16; }
.alert--ok { background: #e8f6ef; color: #145c38; }

.table-wrap { overflow-x: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
table.data th, table.data td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
table.data th { background: #f7f9fb; color: var(--muted); font-weight: 600; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}
.badge--ok { background: #e5f6ec; color: var(--ok); }
.badge--warn { background: #fff4d6; color: var(--warn); }
.badge--danger { background: #fde8e6; color: var(--danger); }
.badge--muted { background: #eef1f4; color: var(--muted); }

.dl { display: grid; grid-template-columns: 180px 1fr; gap: 0.45rem 1rem; margin: 0; }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; }

.form-row { margin-bottom: 0.85rem; }
.form-row label { display: block; margin-bottom: 0.3rem; font-weight: 600; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  max-width: 420px;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.filters input, .filters select {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.empty { padding: 1.25rem; color: var(--muted); }

.login-card {
  max-width: 400px;
  margin: 3rem auto;
}

.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 1rem 1.25rem;
  margin-top: auto;
}
.site-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}
.site-footer__sep {
  margin: 0 0.35rem;
  opacity: 0.6;
}

@media (max-width: 640px) {
  .dl { grid-template-columns: 1fr; }
}