body { background: #f0f2f5; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
.container { max-width: 500px; margin: 50px auto; background: white; padding: 30px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
h1 { color: #1a73e8; text-align: center; }
label { display: block; margin-top: 15px; font-weight: bold; }
input, select { width: 100%; padding: 12px; margin-top: 5px; border: 1px solid #ddd; border-radius: 6px; box-sizing: border-box; }
button { width: 100%; margin-top: 20px; padding: 12px; background: #1a73e8; color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 16px; }
button:hover { background: #1557b0; }
.result { margin-top: 25px; padding: 15px; background: #e8f0fe; border-left: 5px solid #1a73e8; }