/* style.css */

body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f6f9fc; /* latar belakang lembut */
  color: #333;
}

header {
  background: linear-gradient(135deg, #b3d5f2, #e3f2fd); /* gradasi biru pastel */
  color: #003366;
  padding: 1rem 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.container {
  display: flex;
  align-items: center;
  justify-content: start;
  gap: 1rem;
  padding: 0 2rem;
}

.logo {
  height: 60px;
}

.header-text h1 {
  margin: 0;
  font-size: 1.8rem;
}

.slogan {
  margin: 0;
  font-style: italic;
  color: #004c8c;
}

nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  background-color: #ffffff;
  padding: 0.8rem 0;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

nav a {
  text-decoration: none;
  color: #005a9c;
  font-weight: 600;
  transition: color 0.3s;
}

nav a:hover {
  color: #007acc;
}

.section {
  padding: 2.5rem 2rem;
  background-color: #ffffff;
  margin: 1rem auto;
  max-width: 900px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.section h2 {
  color: #003366;
  border-bottom: 2px solid #b3d5f2;
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

ul {
  list-style: none;
  padding: 0;
}

ul li {
  margin-bottom: 0.75rem;
  padding-left: 1.2rem;
  position: relative;
}

ul li::before {
  content: "•";
  color: #007acc;
  position: absolute;
  left: 0;
}

a {
  color: #007acc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  background-color: #eaf3fb;
  padding: 1rem;
  color: #333;
  font-size: 0.9rem;
  border-top: 1px solid #cfe5f5;
}

.fa {
  margin-right: 8px;
  color: #005a9c;
}

/* Tata letak logo dan header teks secara vertikal */
.header-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 0;
}

/* Ukuran dan jarak logo */
.logo {
  max-width: 99px;
  height: auto;
  margin-bottom: 5px;
  opacity: 0.85; /* Nilai antara 0 (transparan penuh) hingga 1 (tidak transparan) */
}

/* Tombol kembali ke atas */
#backToTop {
  display: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 99;
  font-size: 18px;
  background-color: #007acc;
  color: white;
  border: none;
  outline: none;
  padding: 12px 16px;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: background-color 0.3s ease;
}

#backToTop:hover {
  background-color: #005a9c;
}