/* --- DASAR --- */
* { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
}

body { 
    background-color: #f0f0f0; 
    font-family: 'Montserrat', sans-serif;
    color: #333;
    line-height: 1.2; /* Menjaga teks tetap rapat sesuai grid */
}

.main-wrapper {
    max-width: 450px;
    margin: 0 auto;
    background: #fff;
    min-height: 100vh;
    position: relative;
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
}

.vintage-font {
    font-family: 'Vintage Good', cursive; 
    font-weight: normal;
}

.hidden { display: none; }

/* --- HALAMAN 1: OPENING DENGAN GRID STRUKTUR (Sesuai Gambar 1) --- */
.page-dpn {
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 40%, transparent 70%), 
                url('img/dpn.webp') no-repeat center center;
    background-size: cover;
    height: 100vh;
    display: grid;
    /* Membagi layar menjadi 10 baris yang sama besar */
    grid-template-rows: repeat(10, 1fr);
    text-align: center;
    color: #FFFFFF;
}

.opening-content {
    /* Menempatkan konten hanya dari baris ke-6 sampai baris ke-10 (area bawah) */
    grid-row: 6 / 11;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 20px 40px 20px;
}

.bismillah-arab {
    font-size: 26px;
    margin-bottom: 2px;
    font-family: serif;
}

.undangan-text {
    font-weight: 700;
    font-size: 40px;
    margin-bottom: 0;
    text-transform: none;
}

.tasyakuran-text {
    font-size: 16px;
    font-weight: 400;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.baby-name {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 0.9;
}

.dear-text {
    font-size: 14px;
    margin-bottom: 2px;
}

.guest-name-text {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 25px;
}

.btn-buka {
    align-self: center;
    background-color: #1a1a1a;
    color: white;
    padding: 12px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.3);
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

/* --- BAGIAN LAIN TETAP --- */
.page {
    padding: 60px 25px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.page-atas { background: url('img/atas.webp') no-repeat center/cover; }
.page-bwh { background: url('img/bwh.webp') no-repeat center/cover; }

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.img-item {
    aspect-ratio: 267 / 313;
    background-color: #eee;
    background-size: cover;
    background-position: center;
    border-radius: 8px;
    cursor: pointer;
}