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

/* Pengaturan warna dasar */
:root {
    --primary-color: #0056b3;
    --text-color: #333;
    --bg-light: #f4f7f6;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

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

/* --- Bagian Header & Navigasi --- */
header {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    color: var(--primary-color);
    font-size: 24px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* --- Bagian Hero Banner --- */
.hero {
    background-color: var(--bg-light);
    text-align: center;
    padding: 100px 0;
}

.hero h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #666;
}

.btn {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 12px 25px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn:hover {
    background-color: #004494;
}

/* --- Bagian Layanan (Cards) --- */
.services {
    padding: 60px 0;
    text-align: center;
}

.section-title {
    margin-bottom: 40px;
    font-size: 28px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid #eaeaea;
}

.card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* --- Footer --- */
footer {
    background-color: #222;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}