body {
    background: #0d1117;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 60px;
    margin: 0;
}

.glass-btn-container {
    position: relative;
    padding: 3px;
    border-radius: 18px;
    overflow: hidden;
    display: inline-block;
    cursor: pointer;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    transition: 0.3s;
}

.glass-btn-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(#00e6ff, #ff0099, #bd00ff, #00e6ff);
    animation: rotate-border 4s linear infinite;
}

.glass-btn {
    position: relative;
    z-index: 1;
    padding: 18px 50px;
    font-size: 20px;
    color: white;
    font-weight: bold;
    border-radius: 16px;
    border: none;
    background: rgba(20, 20, 30, 0.7);
    backdrop-filter: blur(20px);
    cursor: pointer;
    min-width: 180px;
}

.heart-box {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

    mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z"/></svg>') no-repeat center;
    -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z"/></svg>') no-repeat center;
    mask-size: 100%;
    -webkit-mask-size: 100%;
}

.rotating-bg {
    position: absolute;
    width: 160%;
    height: 160%;
    background: conic-gradient(#ff0055 0deg 25deg, transparent 50deg, #00e6ff 120deg 145deg, transparent 170deg, #bd00ff 240deg 265deg, transparent 290deg);
    animation: spin 3s linear infinite;
}

.heart-inner {
    position: absolute;
    inset: 8px;
    background: rgba(20, 20, 35, 0.8);
    backdrop-filter: blur(20px);
    z-index: 2;
    mask: inherit;
    -webkit-mask: inherit;
    background-image:
        radial-gradient(circle at 30% 30%, rgba(255, 0, 85, 0.6) 0%, transparent 25%),
        radial-gradient(circle at 75% 25%, rgba(0, 180, 255, 0.5) 0%, transparent 25%),
        radial-gradient(circle at 50% 75%, rgba(150, 50, 255, 0.5) 0%, transparent 35%);
}

@keyframes rotate-border {
    to {
        transform: rotate(360deg);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes heartPulse {
    0% {
        transform: scale(1);
    }

    15% {
        transform: scale(1.2);
    }

    30% {
        transform: scale(1.1);
    }

    45% {
        transform: scale(1.3);
    }

    100% {
        transform: scale(1);
    }
}

.beating {
    animation: heartPulse 1.2s infinite cubic-bezier(0.215, 0.61, 0.355, 1) !important;
    filter: drop-shadow(0 0 15px rgba(255, 0, 85, 0.5));
}

.paused {
    animation-play-state: paused !important;
}