* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f1f5f9;
    color: #1e293b;
}

header {
    background: #14213d;
    color: white;
    text-align: center;
    padding: 30px;
}

header h1 {
    margin-bottom: 8px;
}

nav {
    background: #243b60;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
}

main {
    max-width: 1000px;
    margin: auto;
    padding: 25px;
}

section {
    margin-bottom: 40px;
}

.catalogo {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 20px;
}

.producto {
    background: white;
    padding: 22px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 3px 10px #00000012;
}

.emoji {
    font-size: 55px;
}

.producto strong {
    color: #087e8b;
}

footer {
    background: #14213d;
    color: white;
    text-align: center;
    padding: 20px;
}