:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --border: #d9e2ef;
  --accent: #2563eb;
  --danger: #dc2626;
  --ok: #16a34a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

.topbar,
.shell,
.auth-card {
  width: min(1080px, calc(100vw - 28px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0 18px;
}

.topbar span,
label span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 4px;
  font-size: 34px;
}

h2 {
  font-size: 18px;
}

a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.card,
.auth-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.07);
  padding: 20px;
}

.card {
  margin-bottom: 16px;
}

.auth-card {
  max-width: 420px;
  margin-top: 12vh;
}

.auth-card p {
  margin: 8px 0 18px;
  color: var(--muted);
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}

label {
  display: grid;
  gap: 7px;
}

.wide {
  grid-column: span 2;
}

.check {
  align-content: end;
  grid-template-columns: auto 1fr;
  align-items: center;
}

input,
button {
  min-height: 40px;
  border-radius: 9px;
  font: inherit;
}

input {
  width: 100%;
  border: 1px solid var(--border);
  padding: 9px 11px;
}

button {
  border: 0;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-weight: 800;
  padding: 0 14px;
}

.danger {
  background: var(--danger);
}

.alert {
  margin: 12px 0;
  border-radius: 9px;
  background: #fee2e2;
  color: #991b1b;
  padding: 10px 12px;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 12px 10px;
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

code {
  user-select: all;
}

.badge {
  display: inline-flex;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 800;
}

.badge.ok {
  background: #dcfce7;
  color: #166534;
}

.badge.off {
  background: #fee2e2;
  color: #991b1b;
}

.actions {
  display: flex;
  gap: 8px;
}

.actions form {
  margin: 0;
}

@media (max-width: 780px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .grid-form {
    grid-template-columns: 1fr;
  }

  .wide {
    grid-column: auto;
  }
}