.sidebar{-webkit-backdrop-filter:blur(12px)saturate(150%);backdrop-filter:blur(12px)saturate(150%);background:#ffffff26;border:1px solid #ffffff2e;border-radius:1rem;box-shadow:0 4px 30px #0000001a}.btn-gradient{color:#fff;background:linear-gradient(135deg,#4f46e5,#06b6d4);transition:transform .2s}.btn-gradient:hover{transform:translateY(-2px)}.widget-card{background:#fff;border-radius:.75rem;padding:1.5rem;box-shadow:0 2px 8px #00000012}