/* Layout básico - TechPonto Informática */
* { box-sizing: border-box; }

body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    color: #222;
    background: #f4f6f8;
    line-height: 1.5;
}

header {
    background: #0d47a1;
    color: #fff;
    padding: 20px 30px 0;
}
header p { margin: 4px 0 14px; }

nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
nav a {
    display: block;
    padding: 10px 20px;
    color: #fff;
    text-decoration: none;
    border-radius: 6px 6px 0 0;
}
nav a:hover, nav a.ativo { background: #f4f6f8; color: #0d47a1; }

main { max-width: 1000px; margin: 0 auto; padding: 20px; }

section {
    background: #fff;
    padding: 20px 25px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(0,0,0,.1);
}
h2 { color: #0d47a1; margin-top: 0; }

.grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.cartao {
    border: 1px solid #d5dae0;
    border-radius: 8px;
    padding: 14px;
    background: #fafbfc;
}
.cartao h3 { margin: 0 0 6px; font-size: 1.05em; }
.cartao .preco { font-size: 1.2em; font-weight: bold; color: #2e7d32; }
.cartao .img-produto {
    height: 110px;
    background: #dfe6ee;
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    color: #70808f; font-size: .85em; margin-bottom: 10px;
}

table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid #d5dae0; padding: 8px 10px; text-align: left; }
th { background: #e3ecf7; }

form label { font-weight: bold; }
input[type=text], input[type=email], input[type=tel], select, textarea {
    width: 100%; max-width: 480px; padding: 8px; margin: 4px 0 12px;
    border: 1px solid #b8c0c8; border-radius: 4px; font: inherit;
}
input[type=submit], button {
    background: #0d47a1; color: #fff; border: 0;
    padding: 10px 22px; border-radius: 4px; cursor: pointer; font: inherit;
}
input[type=submit]:hover, button:hover { background: #1565c0; }
fieldset { border: 1px solid #d5dae0; border-radius: 6px; margin-bottom: 14px; }

footer {
    background: #0d47a1; color: #fff;
    text-align: center; padding: 14px; margin-top: 30px;
}