body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #2c003e, #000000);
    color: #e0e0e0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(255, 20, 147, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    z-index: 1;
}

.sparkle-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

.sparkle {
    position: absolute;
    color: #ff69b4;
    font-size: 15px;
    animation: sparkle-fall 8s linear infinite;
    opacity: 0.7;
}

@keyframes sparkle-fall {
    0% { transform: translateY(-100vh) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

.container {
    text-align: center;
    padding: 20px;
    z-index: 3;
    position: relative;
}

.fade-in {
    animation: fadeIn 2s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    font-size: 2.5em;
    color: #b19cd9;
    margin-bottom: 30px;
}

.package-box {
    background: rgba(75, 0, 130, 0.8); /* Ungu transparan */
    border: 2px solid rgba(255, 20, 147, 0.3); /* Glow pink tipis */
    border-radius: 15px;
    padding: 30px;
    max-width: 400px;
    margin: 0 auto;
    transition: all 0.5s ease;
    box-shadow: 0 0 15px rgba(255, 20, 147, 0.2);
}

.package-box:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 20, 147, 0.6), 0 0 50px rgba(255, 20, 147, 0.4);
    animation: pulse 1s infinite alternate;
}

@keyframes pulse {
    0% { box-shadow: 0 0 30px rgba(255, 20, 147, 0.6); }
    100% { box-shadow: 0 0 50px rgba(255, 20, 147, 1); }
}

h2 {
    font-size: 2em;
    color: #ff69b4;
    margin-bottom: 10px;
}

.price {
    font-size: 1.8em;
    color: #ffffff;
    font-weight: bold;
    margin-bottom: 20px;
}

.features {
    list-style-type: none;
    padding: 0;
    margin-bottom: 30px;
}

.features li {
    background: rgba(255, 255, 255, 0.1);
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
    color: #d3d3d3;
    transition: background 0.3s ease;
}

.features li:hover {
    background: rgba(255, 20, 147, 0.2);
    color: #ffffff;
}

.checkout-btn {
    background: #4b0082;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(255, 20, 147, 0.5);
    position: relative;
    overflow: hidden;
}

.checkout-btn:hover {
    background: #6a0dad;
    box-shadow: 0 0 30px rgba(255, 20, 147, 1), 0 0 50px rgba(255, 20, 147, 0.8);
    transform: scale(1.1);
    animation: blink 0.5s infinite alternate, snow-effect 1s ease-in-out infinite;
}

.checkout-btn:hover::before {
    content: '❄';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2em;
    color: #ffffff;
    animation: snow-effect 1s ease-in-out infinite;
}

@keyframes blink {
    0% { opacity: 1; }
    100% { opacity: 0.7; }
}

@keyframes snow-effect {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(0); }
}