/* ===== Global ===== */
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f9fafb;
  color: #1f2937;
}

a {
  text-decoration: none;
}

/* ===== Layout ===== */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 20px;
}

/* ===== Header ===== */
.site-header {
  background: #0f172a;
  color: #ffffff;
}

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

.logo {
  font-size: 22px;
  font-weight: bold;
}

.logo span {
  color: #60a5fa;
}

nav a {
  color: #e5e7eb;
  margin-left: 20px;
  font-size: 14px;
}

nav a:hover {
  color: #60a5fa;
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, #1e3a8a, #0f172a);
  color: #ffffff;
  padding: 80px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 36px;
  margin-bottom: 10px;
}

.hero p {
  font-size: 16px;
  opacity: 0.9;
}

.btn-primary {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 24px;
  background: #60a5fa;
  color: #0f172a;
  font-weight: bold;
  border-radius: 4px;
}

/* ===== Sections ===== */
.section {
  padding: 60px 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: #ffffff;
  padding: 25px;
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.card h3 {
  margin-top: 0;
  color: #1e3a8a;
}

/* ===== Footer ===== */
.site-footer {
  background: #0f172a;
  color: #9ca3af;
  text-align: center;
  padding: 20px;
  font-size: 13px;
}