* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f6f8;
    color: #222;
}

.container {
    width: min(950px, 92%);
    margin: 30px auto;
    background: #fff;
    padding: 24px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

h1,
h2 {
    margin-top: 0;
}

form {
    display: grid;
    gap: 12px;
    margin-bottom: 24px;
}

label {
    font-weight: bold;
}

input,
select,
button {
    padding: 10px;
    font-size: 1rem;
}

button {
    cursor: pointer;
}

.resultado,
.aviso {
    padding: 14px;
    background: #eef4ff;
    border-radius: 8px;
    margin: 14px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 18px;
}

th,
td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

th {
    background: #f0f0f0;
}

a {
    color: #0b57d0;
}