:root {
  --acme-blue: #1E1E82;
  --acme-blue-dark: #15155c;
  --bg: #eef0f7;
  --card: #ffffff;
  --text: #1a1a2e;
  --muted: #5a5a72;
  --border: #d5d8e8;
  --danger: #b42318;
  --ok: #0a7a3e;
  --warn: #9a6700;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Candara, Calibri, sans-serif;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(30, 30, 130, 0.12), transparent 50%),
    linear-gradient(180deg, #f5f6fb 0%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
}

header {
  background: var(--acme-blue);
  color: #fff;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
header h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
header .meta { font-size: 0.85rem; opacity: 0.9; }
header a {
  color: #fff;
  text-decoration: underline;
  margin-left: 1rem;
}

main {
  max-width: 1100px;
  margin: 1.25rem auto;
  padding: 0 1rem 3rem;
}

.gate {
  text-align: center;
  padding: 4rem 1rem;
}
.gate a.btn {
  display: inline-block;
  margin-top: 1rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1rem 1.15rem;
  margin-bottom: 1.15rem;
}
.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  color: var(--acme-blue);
  border-bottom: 2px solid var(--acme-blue);
  padding-bottom: 0.35rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  align-items: center;
}
input[type="search"],
input[type="text"],
input[type="email"],
select {
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.4rem 0.55rem;
  font: inherit;
  min-width: 12rem;
}
button, .btn {
  background: var(--acme-blue);
  color: #fff;
  border: none;
  border-radius: 3px;
  padding: 0.45rem 0.85rem;
  font: inherit;
  cursor: pointer;
}
button:hover, .btn:hover { background: var(--acme-blue-dark); }
button.secondary {
  background: #fff;
  color: var(--acme-blue);
  border: 1px solid var(--acme-blue);
}
button.danger { background: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th, td {
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
tr:hover td { background: #f7f8fc; }
tr.selected td { background: #e8eaf8; }
.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  background: #e8eaf8;
  color: var(--acme-blue);
  margin: 0.1rem 0.15rem 0.1rem 0;
}
.badge.warn { background: #fff4ce; color: var(--warn); }
.badge.ok { background: #e3f5e8; color: var(--ok); }
.badge.off { background: #fce8e6; color: var(--danger); }

.msg {
  padding: 0.55rem 0.75rem;
  margin-bottom: 0.75rem;
  border-radius: 3px;
  font-size: 0.9rem;
}
.msg.err { background: #fce8e6; color: var(--danger); }
.msg.ok { background: #e3f5e8; color: var(--ok); }

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
}
@media (max-width: 860px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.actions { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }
.hint { color: var(--muted); font-size: 0.85rem; margin: 0.35rem 0; }
code { font-size: 0.85em; }