/* RESET & GLOBAL */
* {
    box-sizing: border-box; /* Memastikan padding tidak membuat elemen melebar */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #eef2f5;
    margin: 0;
    padding: 0;
    color: #333;
}

/* NAVBAR STYLE */
.navbar {
    background: linear-gradient(135deg, #0056b3, #003d80);
    color: white;
    padding: 15px 20px; /* Padding dikurangi untuk mobile */
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    flex-wrap: wrap; /* Agar bisa turun baris jika layar sempit */
}

.navbar-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.2em;
    font-weight: bold;
    letter-spacing: 1px;
}

.navbar-menu {
    display: flex;
    align-items: center;
}

.navbar-menu a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
    padding: 8px 12px;
    border-radius: 5px;
    transition: background 0.3s;
    font-size: 0.95em;
}

.navbar-menu a:hover, .navbar-menu a.active {
    background-color: rgba(255,255,255,0.2);
}

/* CONTAINER UMUM */
.container {
    max-width: 1100px;
    margin: 20px auto;
    padding: 0 15px; /* Padding samping dikurangi agar tidak mepet di HP */
}

/* STYLE UNTUK FORM */
.form-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.form-header {
    text-align: center;
    margin-bottom: 25px;
}

.form-header h2 {
    color: #0056b3;
    margin: 0 0 5px 0;
    font-size: 1.5em;
}

/* INPUT & SELECT */
input[type="text"], 
input[type="number"], 
input[type="file"], 
textarea, 
select {
    width: 100%;
    padding: 12px; /* Padding agak besar untuk sentuhan jari di HP */
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px; /* Ukuran font 16px mencegah zoom otomatis di iPhone */
    background-color: #fff;
    box-sizing: border-box;
}

/* GRID LAYOUT KARTU PESERTA */
.peserta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

/* STYLE KARTU PESERTA */
.peserta-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}
.peserta-card:hover {
    transform: translateY(-5px);
}

.card-header {
    background: #0056b3;
    color: white;
    padding: 12px;
    text-align: center;
}
.card-header h3 {
    margin: 0;
    font-size: 1.1em;
}

.card-body {
    padding: 15px;
}

.foto-container {
    width: 100px;
    height: 100px;
    margin: 0 auto 15px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #eef2f5;
    background: #ddd;
}
.foto-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.info-item {
    margin-bottom: 10px;
    border-bottom: 1px dashed #eee;
    padding-bottom: 6px;
}
.info-label {
    font-size: 0.8em;
    color: #888;
    display: block;
    margin-bottom: 2px;
}
.info-value {
    font-weight: 600;
    color: #333;
    font-size: 0.9em;
}

.wa-badge {
    display: inline-block;
    background: #6c757d; /* Abu-abu karena nomor disembunyikan */
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75em;
}

/* BUTTON */
button {
    width: 100%;
    padding: 12px;
    background-color: #0056b3;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
}
button:hover { background-color: #004494; }

/* PESAN NOTIFIKASI */
.pesan {
    text-align: center;
    padding: 12px;
    margin-bottom: 15px;
    border-radius: 5px;
    font-size: 0.9em;
}
.sukses { background-color: #d4edda; color: #155724; }
.error { background-color: #f8d7da; color: #721c24; }

/* ========================================= */
/* RESPONSIVE MEDIA QUERIES (TAMPILAN HP)    */
/* ========================================= */

/* Untuk Tablet (lebar maksimal 768px) */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column; /* Logo dan Menu berjejer vertikal */
        text-align: center;
        padding: 15px 10px;
    }
    .navbar-brand {
        margin-bottom: 10px;
    }
    .navbar-menu {
        width: 100%;
        justify-content: center;
    }
    .navbar-menu a {
        margin: 5px; /* Jarak menu lebih rapat */
    }
    
    .container {
        padding: 0 10px;
    }
    
    .form-header h2 {
        font-size: 1.3em;
    }
}

/* Untuk Handphone (lebar maksimal 480px) */
@media (max-width: 480px) {
    /* Paksa Grid menjadi 1 Kolom Penuh */
    .peserta-grid {
        grid-template-columns: 1fr;
    }
    
    /* Sesuaikan Form */
    .form-card {
        padding: 15px; /* Padding lebih kecil */
    }
    
    /* Ukuran font lebih kecil agar muat */
    .form-header h2 {
        font-size: 1.1em;
    }
    
    .card-header h3 {
        font-size: 1em;
    }
    
    .info-value {
        font-size: 0.85em;
    }
}