/* Reset Basic - Menggunakan selektor universal hanya untuk box-sizing */
* {
    box-sizing: border-box;
}

/* Reset margin & padding dasar untuk elemen teks/layout utama */
html, body, h1, h2, p, ul, ol {
    margin: 0;
    padding: 0;
}

body {
    /* Font-family dipindahkan ke sini agar diwariskan secara alami & hemat performa */
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Nav */
header {
    background: linear-gradient(to bottom, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0) 50%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0) 100%), 
                linear-gradient(to bottom, #004488 0%, #002244 100%);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #0055aa; /* Solusi baris 32 asli */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

/* Mengatur agar logo dan h2 sejajar kesamping */
header div {
    display: flex;
    align-items: center;
}

/* Mengatur ukuran logo dan memberi jarak aman gantinya gap */
header div img {
    height: 45px;
    width: auto;
    margin-right: 15px; /* Solusi baris 40 asli (menggantikan gap) */
}

header nav a {
    color: white;
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
}

header nav a:hover {
    text-decoration: underline;
}

/* Main & Hero Section */
main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    color: #003366;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-block;
    background-color: #ff9900;
    color: white;
    padding: 0.8rem 1.8rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #e68a00;
}

/* Footer */
footer {
    background-color: #222;
    color: #aaa;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
}