body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

h1 {
    margin-bottom: 5px;
}

.subtitle {
    color: #666;
    margin-bottom: 25px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    margin-top: 25px;
    padding: 14px;
    width: 100%;
    background: #0073e6;
    color: #fff;
    border: none;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #005bb5;
}

.results {
    margin-top: 30px;
    background: #f0f8ff;
    padding: 20px;
    border-radius: 6px;
}

.hidden {
    display: none;
}