body {
  font-family: Inter, system-ui, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  margin: 0;
  min-height: 100vh;
}

.container {
  width: min(1024px, 100% - 32px);
  margin: 0 auto;
  padding: 24px 0;
}

header {
  background: #111827;
  border-bottom: 1px solid #334155;
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: #f8fafc;
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

nav a {
  color: #cbd5e1;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background 0.2s ease;
}

nav a:hover {
  background: rgba(148, 163, 184, 0.15);
}

main {
  padding-top: 24px;
}

footer {
  border-top: 1px solid #334155;
  padding: 16px 0;
  text-align: center;
  color: #94a3b8;
}

h1 {
  margin-top: 0;
}

.form-card {
  display: grid;
  gap: 12px;
  max-width: 520px;
  background: #111827;
  border: 1px solid #334155;
  padding: 24px;
  border-radius: 16px;
}

.form-card label {
  font-weight: 600;
}

input, textarea, button {
  width: 100%;
  font: inherit;
}

input, textarea {
  background: #0f172a;
  border: 1px solid #334155;
  color: #e2e8f0;
  border-radius: 10px;
  padding: 12px;
}

button {
  background: #2563eb;
  border: none;
  color: white;
  padding: 14px;
  border-radius: 12px;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.flash {
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 18px;
}

.flash.success {
  background: #14532d;
  color: #d1fae5;
}

.flash.error {
  background: #7f1d1d;
  color: #fee2e2;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  background: #111827;
  border: 1px solid #334155;
}

table th,
 table td {
  padding: 12px;
  border-bottom: 1px solid #334155;
  text-align: left;
}

.admin-section {
  margin-bottom: 32px;
}

.content {
  background: #111827;
  border: 1px solid #334155;
  border-radius: 16px;
  padding: 24px;
}

@media (max-width: 720px) {
  nav {
    flex-direction: column;
  }
}