body, html {
    height: 100%;
    margin: 0;
    overflow: hidden;
}
.container-fluid {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.mobile-content {
    width: 375px; 
    height: 667px; 
    background: white;
    overflow: hidden;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}
.full-size-background {
    height: 100vh;
    background-image: url('../foto.webp');
    background-size: cover;
    background-position: center;
    position: relative;
}
.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1), rgba(10, 17, 59, 1));
    z-index: 1;
}
.bg-size {
    width: 77px;
    height: 81px;
}
.tombak-size {
    width: 77px;
    height: 81px;
}
.conten-cover, .content-front-overlay {
    z-index: 2 !important;
}
.background-left, .background-right {
    position: absolute;
    top: 0;
    bottom: 0;
    width: calc((100% - 375px) / 2);
    background-size: cover;
    z-index: 1;
}
.background-left {
    left: 0;
    background-image: url('../eren_bg.webp');
}
.background-right {
    right: 0;
    background-image:  url('../mikasa_bg.webp');
}
@media (max-width: 767px) {
    .mobile-content {
        width: 100%;
        height: 100%;
        box-shadow: none;
    }
    .background-left, .background-right {
        display: none;
    }
}
.conten-cover h2{
    font-size: 35px;
}
.star-btn {
    position: relative;
    overflow: hidden;
    padding: 11px 35px;
    border: none;
    background: linear-gradient(45deg,#0E1C5F, #0F1956);
    color: white;
    border-radius: 50px;
    transition: all 0.3s;
}

.star-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.star {
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.8);
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    animation: rotateStars 4s linear infinite;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.star:nth-child(1) { top: -5px; left: 20%; animation-delay: 0s; }
.star:nth-child(2) { top: -5px; right: 20%; animation-delay: 1s; }
.star:nth-child(3) { bottom: -5px; left: 30%; animation-delay: 2s; }
.star:nth-child(4) { bottom: -5px; right: 30%; animation-delay: 3s; }

@keyframes rotateStars {
    0% {
        transform: rotate(0deg) translateX(0px) rotate(0deg);
    }
    100% {
        transform: rotate(360deg) translateX(40px) rotate(-360deg);
    }
}

.star-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(13, 202, 240, 0.5);
}
.page-exit {
    animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slideUp {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(-100%);
        opacity: 0;
    }
}