@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #4CAF50; /* Green */
    --secondary-color: #2196F3; /* Blue */
    --text-color: #333;
    --bg-color: #f4f7f6;
    --card-bg: #fff;
    --border-color: #eee;
    --shadow-light: 0 4px 8px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
}

.app-description {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

/* Gaya untuk Logo Sekolah */
.school-logo {
    display: block; /* Pastikan gambar berperilaku sebagai block-level element */
    margin: 0 auto 20px auto; /* Pusatkan secara horizontal, 20px margin-bottom */
    max-width: 120px; /* **PERUBAHAN: Batasi ukuran maksimal logo di layar besar menjadi 120px** */
    width: 100%;      /* Pastikan logo menyusut agar sesuai dengan lebar kontainer induk */
    height: auto;     /* Pertahankan rasio aspek gambar */
    box-sizing: border-box;
    object-fit: contain; /* Memastikan seluruh gambar terlihat dalam batasnya */
}

.app-description h1 {
    color: var(--primary-color);
    font-size: 2.5em;
    margin-bottom: 10px;
}

.app-description p {
    font-size: 1.1em;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
}

.category-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-button {
    background-color: #f0f0f0;
    border: 1px solid var(--border-color);
    padding: 12px 25px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    color: #555;
    transition: all 0.3s ease;
}

.tab-button:hover {
    background-color: #e0e0e0;
    color: var(--primary-color);
}

.tab-button.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-light);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.download-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow-light);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.file-icon {
    font-size: 2.5em;
    color: var(--secondary-color);
    margin-right: 15px;
    width: 40px;
    text-align: center;
}

.file-info h3 {
    margin: 0;
    font-size: 1.3em;
    color: var(--primary-color);
    word-break: break-word;
}

.file-info p {
    margin: 5px 0 0;
    font-size: 0.9em;
    color: #777;
}

.card-body {
    margin-bottom: 15px;
}

.card-body p {
    font-size: 0.95em;
    color: #666;
    margin: 0 0 10px;
}

.card-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.download-button {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.download-button:hover {
    background-color: #43A047;
}

.copy-link-button {
    background-color: #6c757d;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.copy-link-button:hover {
    background-color: #5a6268;
}

.download-progress-bar {
    width: 0%;
    height: 5px;
    background-color: var(--secondary-color);
    border-radius: 5px;
    margin-top: 5px;
    transition: width 0.2s ease-out;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        margin: 20px auto;
        padding: 15px;
    }

    .app-description h1 {
        font-size: 2em;
    }

    /* Override max-width untuk layar yang lebih kecil */
    .school-logo {
        max-width: 80px; /* **PERUBAHAN: Batasi lebih kecil di perangkat mobile menjadi 80px** */
        /* Jika masih terlalu besar, coba nilai yang lebih kecil seperti 60px atau 50px */
    }

    .category-tabs {
        flex-direction: column;
        align-items: center;
    }

    .tab-button {
        width: 100%;
        max-width: 300px;
    }

    .download-grid {
        grid-template-columns: 1fr;
    }
}
/* Sembunyikan versi lama secara default */
.download-card.hidden-older-version {
    display: none;
}

/* Gaya untuk tombol "Muat Versi Lebih Lama" */
.load-more-button {
    display: block; /* Pastikan tombol di baris baru */
    margin: 20px auto; /* Tengahkan dan beri margin */
    padding: 10px 20px;
    background-color: #007bff; /* Warna biru */
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s ease;
    text-align: center;
}

.load-more-button:hover {
    background-color: #0056b3; /* Warna biru lebih gelap saat hover */
}

/* Gaya untuk grup unduhan (opsional) */
.download-group {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
    background-color: #f9f9f9;
}

.download-group h4 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
    margin-bottom: 15px;
}