/* Reset Basic */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', Arial, sans-serif;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Background Gambar Full Layar Style */
#bg-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: cover; /* Memastikan gambar menutupi seluruh layar tanpa gepeng */
    z-index: -2;
}

/* Overlay Gelap */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65); /* Mengatur tingkat gelap background */
    z-index: -1;
}

/* Container Layout */
.main-container {
    width: 100%;
    max-width: 480px;
    padding: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* Brand Title Glow */
.brand-title {
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: 3px;
    color: #fff;
    text-shadow: 0 0 10px #ffbb00, 0 0 20px #ffbb00, 0 0 30px #ff8800;
}

/* Promo Banner Style */
.promo-banner img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(255, 187, 0, 0.4);
    border: 2px solid #ffbb00;
}

/* Buttons Container */
.action-buttons {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Base Button Style */
.btn {
    display: block;
    width: 100%;
    padding: 16px 0;
    font-size: 1.2rem;
    font-weight: 800;
    text-decoration: none;
    text-transform: uppercase;
    color: #000;
    border-radius: 8px;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
    animation: glowShake 2s infinite ease-in-out;
}

/* Button Color Theme */
.btn-login {
    background: linear-gradient(45deg, #ffd700, #ff8c00);
}

.btn-register {
    background: linear-gradient(45deg, #00ff87, #60efff);
}

.btn-rtp {
    background: linear-gradient(45deg, #ff007f, #7928ca);
    color: #fff;
}

.btn-contact {
    background: linear-gradient(45deg, #00c6ff, #0072ff);
    color: #fff;
}

/* Hover State */
.btn:hover {
    transform: scale(1.03);
    cursor: pointer;
}

/* Keyframes Animation: Glowing & Shaking */
@keyframes glowShake {
    0% {
        transform: translate(0, 0) rotate(0deg);
        box-shadow: 0 0 10px #ffbb00, 0 0 20px #ffbb00;
    }
    10% {
        transform: translate(-2px, -1px) rotate(-1deg);
    }
    20% {
        transform: translate(2px, 1px) rotate(1deg);
    }
    30% {
        transform: translate(-2px, 1px) rotate(0deg);
    }
    40% {
        transform: translate(2px, -1px) rotate(1deg);
    }
    50% {
        transform: translate(0, 0) rotate(0deg);
        box-shadow: 0 0 20px #ffffff, 0 0 35px #ffbb00;
    }
    100% {
        transform: translate(0, 0) rotate(0deg);
        box-shadow: 0 0 10px #ffbb00, 0 0 20px #ffbb00;
    }
}

/* Footer Style */
footer {
    margin-top: 10px;
    font-size: 0.85rem;
    color: #ccc;
}