.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: 0.5s;
}

.btn-shimmer:hover::before {
    left: 100%;
}

.btn-glow {
    transition: all 0.3s ease;
}

.btn-glow:hover {
    box-shadow: 0 0 20px var(--accent-color);
    transform: translateY(-2px);
}

.cta-primary {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    z-index: 1;
}

.cta-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    z-index: -1;
    transition: opacity 0.3s ease;
    opacity: 0;
}

.cta-primary:hover::after {
    opacity: 1;
}