/* 1. Global Setup & Variables */
:root {
    --primary-color: #0056b3; /* Biru yang sedikit lebih gelap dan profesional */
    --primary-light: #e6f0ff; /* Warna hover/latar belakang terang */
    --text-dark: #333333;
    --text-light: #f8f9fa;
    --background-color: #f4f7fc; /* Latar belakang body yang sangat terang */
    --card-bg: #ffffff;
    --shadow-light: 0 4px 15px rgba(0, 0, 0, 0.06); /* Bayangan yang lebih halus */
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
}

body {
    font-family: 'Poppins', sans-serif; /* Menggunakan Google Font */
    margin: 0;
    padding: 0 0 80px 0; /* Padding bawah untuk memberi ruang dari bottom-nav */
    background-color: var(--background-color);
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    padding: 20px;
}

/* 2. Header */
header {
    background: linear-gradient(135deg, #0061ff, var(--primary-color)); /* Gradient untuk tampilan modern */
    padding: 25px 20px;
    color: var(--text-light);
    text-align: left;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
}

header p {
    margin: 4px 0 0;
    font-size: 14px;
    opacity: 0.9;
}

.aktifkan-btn {
    background-color: var(--card-bg);
    color: var(--primary-color);
    padding: 10px 20px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, background-color 0.2s ease;
    white-space: nowrap; /* Agar teks tidak terpotong */
}

.aktifkan-btn:hover {
    transform: scale(1.05);
}

/* 3. Menu Grid System */
.menu-group {
    margin-top: 30px;
}

.menu-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-left: 5px;
    border-left: 4px solid var(--primary-color);
}

.grid-container {
    display: grid;
    /* Kunci Responsif: Otomatis menyesuaikan jumlah kolom */
    grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
    gap: 15px;
}

.grid-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px 5px;
    text-align: center;
    text-decoration: none;
    color: var(--text-dark);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    aspect-ratio: 1 / 1; /* Membuat item selalu kotak */
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 86, 179, 0.15);
    color: var(--primary-color);
}

.grid-item i {
    font-size: 28px;
    margin-bottom: 8px;
    color: var(--primary-color);
    transition: color 0.2s ease;
}

.grid-item p {
    margin: 0;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.3;
}

/* 5. Pop-up & Footer */
.popup-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
.popup {
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    text-align: center;
    max-width: 320px;
    position: relative;
}
.popup .close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #f1f1f1;
    color: #555;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    font-size: 20px;
    cursor: pointer;
    line-height: 30px;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    font-size: 12px;
    color: #888;
}