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

body {
  font-family: Arial, Helvetica, sans-serif;
  color: #222;
  background: #ffffff;
  line-height: 1.6;
}

.header {
  background: #111827;
  color: white;
  padding: 18px 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.logo {
  font-size: 26px;
  font-weight: bold;
  letter-spacing: 1px;
}

.menu a {
  color: white;
  text-decoration: none;
  margin-left: 22px;
  font-weight: bold;
  font-size: 14px;
}

.menu a:hover {
  color: #facc15;
}

.hero {
  min-height: 520px;
  padding: 70px 8%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 45px;
  align-items: center;
  background: linear-gradient(135deg, #fef3c7, #ffffff);
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
  color: #111827;
}

.hero p {
  font-size: 20px;
  margin-bottom: 28px;
}

.btn {
  display: inline-block;
  background: #111827;
  color: white;
  padding: 14px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
}

.btn:hover {
  background: #374151;
}

.section {
  padding: 70px 8%;
}

.section h2 {
  font-size: 34px;
  margin-bottom: 30px;
  color: #111827;
  text-align: center;
}

.bg-light {
  background: #f3f4f6;
}

.two-columns {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 35px;
  align-items: center;
  max-width: 950px;
  margin: auto;
  font-size: 18px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}

.card {
  background: white;
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.card h3 {
  margin: 18px 0 10px;
  color: #111827;
}

.placeholder {
  background: #d1d5db;
  border: 2px dashed #6b7280;
  color: #374151;
  height: 300px;
  border-radius: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
}

.placeholder.small {
  height: 180px;
}

.footer {
  background: #111827;
  color: white;
  text-align: center;
  padding: 25px;
  font-size: 15px;
}

@media (max-width: 768px) {
  .header {
    text-align: center;
    justify-content: center;
  }

  .menu {
    margin-top: 15px;
  }

  .menu a {
    display: inline-block;
    margin: 8px;
  }

  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .two-columns {
    grid-template-columns: 1fr;
    text-align: center;
  }
}