/* ===== BOTONES ===== */
.btn {
    padding: 16px 40px;
    border-radius: var(--border-radius-button);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid transparent;
    background: linear-gradient(var(--bg-dark), var(--bg-dark)) padding-box,
                var(--gradient) border-box;
    color: var(--text-primary);
    font-size: 1rem;
    letter-spacing: 1px;
    line-height: 1.2;
    white-space: nowrap;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-primary);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--white-02), transparent);
    transition: left 0.5s ease;
    z-index: 1;
}

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

.btn:hover {
    border-color: transparent;
    transform: none;
    box-shadow: 0 15px 35px var(--shadow-secondary);
}

.btn-primary {
    background: var(--gradient);
    color: var(--text-primary);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}