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

body {
    font-family: 'Inter', sans-serif;
    color: #333;
    line-height: 1.6;
    scroll-behavior: smooth;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 60px 0;
}

/* Navigasi */
header {
    background: #ffffff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
}

.logo span {
    color: #3498db;
}

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

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

nav ul li a {
    text-decoration: none;
    color: #555;
    font-weight: 600;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #3498db;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: #fff;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    padding-top: 80px;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background: #e74c3c;
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}

.btn:hover {
    background: #c0392b;
}

/* Bagian Umum */
h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 20px;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: #3498db;
    margin: 10px auto 0;
}

.about {
    background: #f9f9f9;
    text-align: center;
}

.about p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 18px;
}

/* Layanan (Grid) */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 15fr));
    gap: 20px;
    margin-top: 40px;
}

.card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    border-top: 4px solid #3498db;
}

.card h3 {
    margin-bottom: 15px;
}

/* Kontak Form */
.contact {
    background: #f9f9f9;
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 40px auto 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input, 
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: inherit;
}

/* Footer */
footer {
    background: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
}

/* Responsif untuk Layar HP */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }
    nav ul li {
        margin: 0 10px;
    }
    .hero-content h1 {
        font-size: 32px;
    }
}