body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #f9f9fb;
  color: #003366;
}

/* HEADER */
.main-header {
  background-color: #fff;
  padding: 15px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.container.header-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.header-logo img {
  height: 50px;
}

.main-nav {
  position: relative;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
}

.nav-links li a {
  text-decoration: none;
  color: #003366;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links li a:hover {
  color: #0077cc;
}

.hamburger {
  display: none;
  font-size: 24px;
  background: none;
  border: none;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    right: 0;
    flex-direction: column;
    background-color: #fff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: 10px;
    width: 200px;
  }

  .nav-links.show {
    display: flex;
  }

  .hamburger {
    display: block;
  }
}

/* TABUNGAN SECTION */
.tabungan-section {
  padding: 60px 20px;
  max-width: 1100px;
  margin: auto;
}

.tabungan-section h2 {
  font-size: 2.4rem;
  text-align: center;
  color: #003399;
  margin-bottom: 40px;
}

.tabungan-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
}

.buku-img {
  flex: 1;
  max-width: 400px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.tabungan-text {
  flex: 2;
}

.tabungan-text ul {
  padding-left: 20px;
  margin-top: 10px;
}

.tabungan-text li {
  margin-bottom: 10px;
}

/* INFO BUNGA */
.bunga-info {
  margin-top: 15px;
  font-size: 1.05rem;
  background-color: #e8f1ff;
  padding: 10px 15px;
  border-left: 4px solid #003399;
  border-radius: 6px;
  color: #003366;
}

.bunga-info .rate {
  color: #0055cc;
  font-weight: bold;
}

/* PENJELASAN */
.penjelasan-tabungan {
  background: #f2f6fc;
  padding: 50px 20px;
}

.penjelasan-tabungan .container {
  max-width: 900px;
  margin: auto;
}

.penjelasan-tabungan h3 {
  color: #003399;
  font-size: 1.6rem;
  margin-top: 30px;
}

.penjelasan-tabungan p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin: 10px 0;
  color: #333;
}

/* FOOTER */
.footer-bottom {
  background-color: #003366;
  color: white;
  text-align: center;
  padding: 20px 10px;
  font-size: 0.95rem;
}


.btn-buka-tabungan {
  display: inline-block;
  margin-top: 20px;
  background-color: #003399;
  color: white;
  padding: 12px 25px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-buka-tabungan:hover {
  background-color: #001f70;
  transform: translateY(-2px);
}