.hero-section {
    position: relative;
    overflow: hidden;
}

.lava-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    background: linear-gradient(180deg, #000000, #0a0a0a, #0f0f0f);
    pointer-events: none;
}

.lava-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    background: linear-gradient(to bottom, transparent, #000000);
    pointer-events: none;
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.lava-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
    animation: float 20s infinite ease-in-out;
}

.blob-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.8), rgba(139, 92, 246, 0.2));
    animation: float 25s infinite ease-in-out, drift-1 30s infinite ease-in-out;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.7), rgba(167, 139, 250, 0.1));
    animation: float 30s infinite ease-in-out reverse, drift-2 35s infinite ease-in-out;
}

.blob-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.6), rgba(79, 70, 229, 0.1));
    animation: float 22s infinite ease-in-out, drift-3 28s infinite ease-in-out;
}

.blob-4 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(109, 40, 217, 0.7), rgba(109, 40, 217, 0.2));
    animation: float 28s infinite ease-in-out reverse, drift-4 32s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-50px) scale(1.1);
    }
}

@keyframes drift-1 {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(100px, 50px);
    }
    66% {
        transform: translate(-50px, 100px);
    }
}

@keyframes drift-2 {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(-80px, -60px);
    }
    66% {
        transform: translate(60px, -100px);
    }
}

@keyframes drift-3 {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(-100px, -50px);
    }
    66% {
        transform: translate(80px, 50px);
    }
}

@keyframes drift-4 {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(50px, 100px);
    }
    66% {
        transform: translate(-70px, -80px);
    }
}

@media (max-width: 1200px) {
    .blob-1 { width: 250px; height: 250px; }
    .blob-2 { width: 320px; height: 320px; }
    .blob-3 { width: 280px; height: 280px; }
    .blob-4 { width: 200px; height: 200px; }
}

@media (max-width: 768px) {
    .lava-blob {
        filter: blur(40px);
    }
    .blob-1 { width: 200px; height: 200px; }
    .blob-2 { width: 250px; height: 250px; }
    .blob-3 { width: 220px; height: 220px; }
    .blob-4 { width: 180px; height: 180px; }
}

@media (max-width: 480px) {
    .lava-blob {
        filter: blur(30px);
        opacity: 0.5;
    }
    .blob-1 { width: 150px; height: 150px; }
    .blob-2 { width: 180px; height: 180px; }
    .blob-3 { width: 160px; height: 160px; }
    .blob-4 { width: 130px; height: 130px; }
}

#startBtn {
    position: relative;
    transition: color 0.2s ease;
    white-space: nowrap;
}

#startBtn:hover {
    color: transparent;
}

#startBtn:hover::after {
    content: attr(data-hover);
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: white;
    white-space: nowrap;
}

#startBtn img {
    transition: opacity 0.2s ease;
}

#startBtn:hover img {
    opacity: 0;
}