/* style.css */
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f0f4f8; text-align: center; margin: 0; color: #333; }
header { background-color: #0056b3; color: white; padding: 20px 0; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
header h2 { margin: 0; font-size: 24px; letter-spacing: 1px; }
.container { padding: 20px; max-width: 650px; margin: auto; }

/* UI Baru: Navigasi Antar Halaman (Pill Menu) */
.nav-menu { 
    display: flex; gap: 10px; overflow-x: auto; padding-bottom: 15px; 
    margin-bottom: 20px; justify-content: start; white-space: nowrap;
}
/* Menyembunyikan scrollbar tapi tetap bisa di-scroll di HP */
.nav-menu::-webkit-scrollbar { height: 0px; background: transparent; }
.nav-btn { 
    flex: 0 0 auto; padding: 10px 18px; background: white; border: 2px solid #0056b3; 
    border-radius: 25px; color: #0056b3; text-decoration: none; font-weight: bold; transition: 0.3s; 
}
.nav-btn.active, .nav-btn:hover { background: #0056b3; color: white; }

/* Desain Area Ilustrasi & 3D */
.ilustrasi-container { margin-bottom: 20px; position: relative; }
#gambarKuman { 
    width: 100%; height: 250px; object-fit: cover; border-radius: 12px; 
    box-shadow: 0 6px 12px rgba(0,0,0,0.15); cursor: zoom-in; transition: transform 0.3s ease; 
}
#gambarKuman:hover { transform: scale(1.03); }
.teks-petunjuk { font-size: 13px; color: #555; margin-top: 8px; margin-bottom: 25px; font-style: italic; }

model-viewer { width: 100%; height: 400px; background-color: #ffffff; border-radius: 12px; box-shadow: 0 6px 12px rgba(0,0,0,0.1); margin-bottom: 25px; }
.ar-button { 
    background-color: #0056b3; color: white; border: none; padding: 12px 24px; 
    border-radius: 8px; font-weight: bold; cursor: pointer; position: absolute; bottom: 16px; right: 16px; box-shadow: 0 4px 6px rgba(0,0,0,0.2); 
}

/* Typography Deskripsi */
.info-box { background: white; padding: 25px; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); text-align: left; line-height: 1.6; }
h3 { margin-top: 0; color: #0056b3; border-bottom: 2px solid #e1e8ed; padding-bottom: 12px; font-size: 22px;}
p { font-size: 15px; color: #444; }

/* Modal Pop-up UI */
.modal { display: none; position: fixed; z-index: 9999; padding-top: 40px; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.85); backdrop-filter: blur(5px); }
.modal-content { margin: auto; display: block; width: 90%; max-width: 800px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.5); }
.close { position: absolute; top: 15px; right: 30px; color: #fff; font-size: 40px; font-weight: bold; cursor: pointer; transition: 0.2s; }
.close:hover { color: #ff4d4d; }

/* Desain Footer Copyright */
.footer-copyright {
    text-align: center;
    font-size: 12px;
    color: #777;
    padding: 20px 10px;
    margin-top: 10px;
    border-top: 1px solid #e1e8ed; /* Garis tipis pemisah */
}

/* Desain Tombol BGM Melayang */
.bgm-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: white;
    border: 2px solid #0056b3;
    color: #0056b3;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.3s;
}
.bgm-toggle:hover {
    background-color: #f0f4f8;
    transform: scale(1.1);
}

/* Update Desain Header */
header { 
    background-color: #0056b3; 
    color: white; 
    padding: 20px 15px; 
    box-shadow: 0 2px 8px rgba(0,0,0,0.15); 
    text-align: center; 
}
header h2 { 
    margin: 0; 
    font-size: 26px; 
    letter-spacing: 1px; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    gap: 8px; /* Memberikan jarak yang pas antara emoji dan teks */
}
.subtitle-header {
    margin: 8px 0 0 0;
    font-size: 14px;
    font-weight: 400;
    color: #ffffff !important; /* Tambahkan baris ini agar tulisan mutlak putih */
    opacity: 0.9; 
    font-style: italic; 
}