@property --border-angle{syntax:"<angle>";inherits:false;initial-value:0deg}@keyframes rotate-border{to{--border-angle:360deg}}.gradient-border-spin{--border-angle:0deg;background:conic-gradient(from var(--border-angle),#3b82f6,#ef4444,#2dd4bf,#3b82f6);animation:2s linear infinite rotate-border}