* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; padding: 45px 16px; background: #edf3fa; color: #263448; font-family: Arial, Helvetica, sans-serif; }
.container { max-width: 560px; margin: 0 auto; padding: 34px; background: #ffffff; border: 2px solid #b5cce5; border-radius: 16px; box-shadow: 0 8px 24px rgba(30, 70, 110, 0.12); }
h1 { margin-top: 0; color: #175a90; font-size: 1.9rem; }
p { line-height: 1.6; }
form { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
label { font-weight: bold; }
input, select { width: 100%; padding: 12px; border: 1px solid #9fb6cd; border-radius: 8px; font: inherit; background: white; }
input:focus, select:focus { outline: 2px solid #5b9dd6; }
button { margin-top: 10px; padding: 13px; background: #176aa6; color: white; border: 0; border-radius: 8px; font: inherit; font-weight: bold; cursor: pointer; }
button:hover { background: #104e7a; }
.result { margin-top: 24px; padding: 16px; background: #e2f3e8; border: 1px solid #83bd95; border-radius: 8px; }
.note { margin-bottom: 0; margin-top: 24px; color: #5d6b7b; font-size: 0.9rem; }