/* Mengatur font dan margin dasar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f0faff; /* Biru sangat muda */
    color: #333;
}

/* Navigasi */
header {
    background: rgba(255, 255, 255, 0.9);
    padding: 20px 10%;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #0077be; /* Biru laut */
}

.logo span {
    color: #f4a460; /* Warna pasir/oranye muda */
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #005f8d;
    font-weight: 500;
    transition: 0.3s;
}

nav ul li a:hover {
    color: #f4a460;
}

/* Hero Section dengan Background Gradasi Pantai */
.hero {
    height: 80vh;
    background: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), 
                url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 25px;
}

.btn {
    padding: 12px 30px;
    background-color: #f4a460;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    transition: 0.3s;
}

.btn:hover {
    background-color: #e6934b;
    transform: scale(1.05);
}

/* Kartu Informasi */
.features {
    display: flex;
    justify-content: center;
    padding: 50px 10%;
    gap: 20px;
    flex-wrap: wrap;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    flex: 1;
    min-width: 250px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border-bottom: 5px solid #00a8e8;
}

.card h3 {
    margin-bottom: 15px;
    color: #0077be;
}