* {
    box-sizing: border-box;
}

:root {
    --navy-main: #0f2850;
    --navy-dark: #0c1f3d;
    --text-dark: #1f2937;
}

img {
    max-width: 100%;
    height: auto;
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden; /* Mencegah scroll ke samping */
    font-family: Arial, sans-serif;
    font-size: 15px;
    color: var(--text-dark);
    background: #ffffff !important; 
}

/* Utility */
.hidden {
    display: none;
}

/* Button Primary (dipakai banyak halaman) */
.btn-primary {
    display: inline-block;
    padding: 10px 22px;
    font-size: 14px;
    background: var(--navy-main);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    transition: 0.3s;
}

.btn-primary:hover {
    background: var(--navy-dark);
}

/* Button WA (dipakai di hero & bisa dipakai ulang) */
.btn-wa {
    display: inline-block;
    padding: 10px 22px;
    font-size: 14px;
    background: #1f7a5a;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
}

.btn-wa:hover {
    background: #41886f;
}

/* Animation global */
@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(-10px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}