* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  color: #1a1a1a;
}

/* ---------- HEADER + NAV ---------- */
.site-header {
  background: #0d3b66;
  color: #fff;
  padding: 1rem 1.5rem;
}

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

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---------- GRID LAYOUT (Header / Sidebar / Main / Footer) ---------- */
.layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1rem;
  padding: 1rem;
}

.sidebar {
  background: #f0f4f8;
  border-radius: 8px;
  padding: 1rem;
}

.sidebar ul { list-style: none; margin-top: 0.5rem; }
.sidebar li { margin-bottom: 0.5rem; }
.sidebar a { text-decoration: none; color: #0d3b66; }

/* Main body: auto-fit grid of cards */
.main-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

/* ---------- FLEXBOX CARD COMPONENT ---------- */
.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  border: 2px solid #ee964b;
  border-radius: 8px;
  padding: 1rem;
  background: #fff;
}

.card-image {
  width: 100%;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed #ee964b;
  color: #ee964b;
  font-weight: bold;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  background: #ee964b;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.2s ease;
}

.btn:hover { background: #d97b30; }

/* ---------- FOOTER ---------- */
.site-footer {
  text-align: center;
  padding: 1rem;
  background: #0d3b66;
  color: #fff8f8;
  margin-top: 1rem;
}

/* ---------- MEDIA QUERIES ---------- */
@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr; /* stack sidebar above main */
  }
  .sidebar { order: 2; }
  .main-body { order: 1; }
}

@media (max-width: 600px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    text-align: center;
    gap: 1rem;
    margin-top: 1rem;
  }
  .nav-links.active { display: flex; }
}