* {
    box-sizing: border-box;
}

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

header {
    background: #28a745;
    color: white;
    padding: 22px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 30px;
}

header p {
    margin: 8px 0 0;
    font-size: 15px;
}

nav {
    background: #222;
    padding: 12px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

nav a {
    color: white;
    text-decoration: none;
    background: #333;
    padding: 10px 14px;
    border-radius: 6px;
    font-weight: bold;
}

nav a:hover,
nav a.activo {
    background: #28a745;
}

.hero {
    background: white;
    padding: 50px 20px;
    text-align: center;
}

.hero h2 {
    font-size: 28px;
    margin-bottom: 12px;
}

.hero p {
    max-width: 720px;
    margin: 0 auto 24px;
    line-height: 1.5;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 30px 20px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 18px;
    box-shadow: 0 1px 8px rgba(0,0,0,0.08);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 18px;
}

.btn,
button {
    display: inline-block;
    background: #28a745;
    color: white;
    padding: 11px 15px;
    border-radius: 7px;
    border: none;
    text-decoration: none;
    font-weight: bold;
    cursor: pointer;
}

.btn:hover,
button:hover {
    background: #218838;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #c8d0d8;
    border-radius: 6px;
    margin-bottom: 12px;
}

label {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

.precio {
    font-weight: bold;
    color: #111;
}

.destacado {
    background: #eaf7ee;
    border-radius: 12px;
    padding: 22px;
    margin-bottom: 25px;
}

footer {
    background: #222;
    color: white;
    text-align: center;
    padding: 18px;
    margin-top: 30px;
}