.result,h1{color:#333}.calendar,.container,.day{text-align:center}.container{display:flex;justify-content:center;align-items:center;flex-direction:column;padding:20px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.1);width:90%;max-width:600px;margin:30px auto}input[type=number],select{padding:10px;margin:5px;width:calc(33% - 12px);border:1px solid #ccc;border-radius:5px}button{background-color:#007bff;color:#fff;border:none;padding:10px 15px;cursor:pointer;border-radius:5px}button:hover{background-color:#0056b3}.result{margin-top:20px;font-size:16px}.calendar{margin-top:20px}.days,.weekdays{display:grid;grid-template-columns:repeat(7,1fr);gap:15px;margin-bottom:8px}.day{padding:12px;background-color:#ddd;border-radius:5px;font-size:14px}.highlight-day{background-color:#ff5722;color:#fff;font-weight:700}.highlight-weekday{background-color:#007bff;color:#fff;font-weight:700}@media (max-width:480px){.container{padding:15px}input[type=number],select{width:calc(100% - 12px)}.days,.weekdays{grid-template-columns:repeat(7,1fr);gap:10px}.day{padding:5px;font-size:12px}.weekdays .day{font-size:9px;margin-bottom:8px}}