:root {
  --ink: #182426;
  --muted: #667174;
  --line: #d8d4ca;
  --paper: #f6f3ec;
  --accent: #9b2f2f;
  --green: #2f695d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

.admin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.admin-sidebar {
  background: var(--ink);
  color: #fff;
  padding: 24px;
}

.admin-brand {
  display: block;
  color: #fff;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 800;
  font-size: 22px;
  margin-bottom: 32px;
}

.admin-sidebar nav {
  display: grid;
  gap: 8px;
}

.admin-sidebar a {
  color: #fff;
  text-decoration: none;
  padding: 10px 0;
}

.admin-main {
  padding: clamp(20px, 4vw, 44px);
}

h1 { margin: 0 0 22px; font-size: clamp(30px, 4vw, 48px); }
h2 { margin: 0 0 16px; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 18px;
}

.panel.narrow {
  max-width: 520px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.stats span {
  color: var(--muted);
  display: block;
}

.stats strong {
  font-size: 42px;
}

.stack,
.grid-form {
  display: grid;
  gap: 14px;
}

.grid-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wide { grid-column: 1 / -1; }

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 700;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check input { width: auto; }

input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 11px;
  font: inherit;
  color: var(--ink);
}

.button {
  border: 0;
  border-radius: 6px;
  min-height: 44px;
  padding: 10px 16px;
  font-weight: 800;
  cursor: pointer;
}

.button.primary {
  background: var(--accent);
  color: #fff;
}

.alert {
  padding: 12px 14px;
  border-radius: 6px;
  font-weight: 700;
}

.alert.success { background: #dfefe9; color: var(--green); }
.alert.error { background: #f7dddd; color: var(--accent); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

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

@media (max-width: 800px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; }
  .grid-form { grid-template-columns: 1fr; }
}