.card,.interval-btn{background-color:#fff}body{font-family:Inter,sans-serif;background-color:#f0f2f5}.card{border-radius:.75rem;box-shadow:0 4px 6px -1px rgb(0 0 0 / .1),0 2px 4px -2px rgb(0 0 0 / .1);transition:transform .3s,box-shadow .3s}.card:hover{transform:translateY(-5px);box-shadow:0 10px 15px -3px rgb(0 0 0 / .1),0 4px 6px -2px rgb(0 0 0 / .1)}.interval-btn{padding:.5rem 1rem;border-radius:.5rem;border:1px solid #d1d5db;color:#374151;font-weight:500;transition:.2s ease-in-out}.interval-btn:hover{background-color:#f3f4f6}.interval-btn.active{background-color:#3b82f6;color:#fff;border-color:#3b82f6}@keyframes pulse{50%{opacity:.5}}.animate-pulse-fast{animation:1.5s cubic-bezier(.4,0,.6,1) infinite pulse}