body {
font-family: ‘Inter’, sans-serif;
background: linear-gradient(135deg, #1e3a8a 0%, #000000 100%);
min-height: 100vh;
}

.glass-card {
background: rgba(255, 255, 255, 0.08);
backdrop-filter: blur(20px);
border: 1px solid rgba(255, 255, 255, 0.15);
transition: all 0.4s ease;
}

.glass-card:hover {
transform: translateY(-5px);
box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
background: rgba(255, 255, 255, 0.12);
}

.nav-button {
background: rgba(255, 255, 255, 0.1);
backdrop-filter: blur(10px);
border: 1px solid rgba(255, 255, 255, 0.2);
transition: all 0.3s ease;
}

.nav-button:hover {
background: rgba(255, 255, 255, 0.15);
transform: translateY(-2px);
}

.fade-in {
opacity: 0;
transform: translateY(30px);
animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
to {
opacity: 1;
transform: translateY(0);
}
}

@keyframes breathe {
0%, 100% {
transform: scale(1);
opacity: 0.8;
}
50% {
transform: scale(1.1);
opacity: 0.4;
}
}

.breathe-ring {
animation: breathe 4s infinite ease-in-out;
}

.cta-button {
background: linear-gradient(135deg, #fbbf24, #f59e0b);
transition: all 0.4s ease;
}

.cta-button:hover {
background: linear-gradient(135deg, #1e3a8a, #0f172a);
transform: translateY(-3px);
box-shadow: 0 15px 30px rgba(251, 191, 36, 0.4);
}

.exercise-box {
background: rgba(251, 191, 36, 0.1);
border-left: 4px solid #fbbf24;
}

// Intersection Observer for staggered animations
document.addEventListener(‘DOMContentLoaded’, function() {
const fadeElements = document.querySelectorAll(‘.fade-in’);

const observer = new IntersectionObserver((entries) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
entry.target.style.animationPlayState = ‘running’;
}
});
}, {
threshold: 0.1,
rootMargin: ‘0px 0px -50px 0px’
});

fadeElements.forEach(el => {
observer.observe(el);
});
});

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