.admin-body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(161,58,40,.20), transparent 32%),
    radial-gradient(circle at bottom right, rgba(201,165,92,.24), transparent 34%),
    linear-gradient(135deg, #f8f3ea, #e9dfd0);
  color: #172233;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.admin-sidebar {
  padding: 28px 22px;
  background: rgba(255,255,255,.42);
  border-right: 1px solid rgba(255,255,255,.55);
  backdrop-filter: blur(22px);
  box-shadow: 20px 0 60px rgba(23,34,51,.08);
}

.admin-brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 28px;
}

.admin-nav {
  display: grid;
  gap: 10px;
}

.admin-nav a {
  color: #172233;
  text-decoration: none;
  font-weight: 750;
  padding: 11px 13px;
  border-radius: 14px;
  background: rgba(255,255,255,.35);
  border: 1px solid rgba(255,255,255,.45);
}

.admin-nav a:hover {
  background: rgba(255,255,255,.72);
}

.admin-main {
  padding: 34px;
}

.admin-card {
  background: rgba(255,255,255,.62);
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 28px;
  padding: 26px;
  box-shadow: 0 24px 70px rgba(23,34,51,.12);
  backdrop-filter: blur(20px);
}

.admin-main h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 42px;
  margin: 0 0 18px;
}

.admin-main table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255,255,255,.48);
  border-radius: 18px;
  overflow: hidden;
}

.admin-main th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #667085;
  background: rgba(255,255,255,.65);
}

.admin-main th,
.admin-main td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(23,34,51,.08);
}

.admin-main tr:last-child td {
  border-bottom: 0;
}

.admin-main input,
.admin-main textarea,
.admin-main select {
  width: 100%;
  border: 1px solid rgba(23,34,51,.16);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  background: rgba(255,255,255,.72);
}

.admin-main input[type="checkbox"] {
  width: auto;
}

.admin-main input[type="submit"],
.admin-main button,
.admin-button,
.admin-main a.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  border: 0;
  border-radius: 999px;
  padding: 10px 15px;
  background: #a13a28;
  color: white;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.admin-main a {
  color: #a13a28;
  font-weight: 700;
}

.admin-flash {
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,.68);
  border: 1px solid rgba(255,255,255,.8);
}

.admin-flash.notice {
  color: #1d5c2c;
}

.admin-flash.alert {
  color: #8b1e1e;
}

@media (max-width: 850px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
  }
}