:root {
  --bg: #f6f6f2;
  --ink: #1f2937;
  --accent: #0f766e;
  --muted: #6b7280;
  --card: #ffffff;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  margin: 0;
  padding: 0;
}

.container {
  width: min(1100px, 92%);
  margin: 24px auto;
}

.nav {
  background: #111827;
  color: #fff;
  padding: 12px 0;
}

.nav a {
  color: #fff;
  margin-right: 16px;
  text-decoration: none;
}

.card {
  background: var(--card);
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
  margin-bottom: 16px;
}

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-block;
}

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

.table th, .table td {
  text-align: left;
  padding: 8px;
  border-bottom: 1px solid #e5e7eb;
}

.form-control {
  width: 100%;
  padding: 8px;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
}

.form-row {
  margin-bottom: 12px;
}