/* RESET BÁSICO */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color: #222;
    background-color: #fafafa;
    line-height: 1.6;
}

/* LINKS */
a {
    color: #1a73e8;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* CONTENEDOR */
main {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px;
}

/* HEADER / BREADCRUMB */
header {
    background: #ffffff;
    border-bottom: 1px solid #e0e0e0;
}

nav {
    max-width: 960px;
    margin: 0 auto;
    padding: 12px 16px;
    font-size: 0.9rem;
    color: #555;
}

nav a {
    color: #555;
}

/* TITULOS */
h1 {
    font-size: 2rem;
    margin-bottom: 16px;
}

h2 {
    font-size: 1.4rem;
    margin-top: 40px;
    margin-bottom: 12px;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 4px;
}

h3 {
    font-size: 1.1rem;
    margin-bottom: 6px;
}

/* TEXTO */
p {
    margin-bottom: 12px;
    color: #333;
}

/* BUSCADOR */
form {
    margin: 16px 0 32px;
    display: flex;
    gap: 8px;
}

input[type="text"] {
    flex: 1;
    padding: 10px 12px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    padding: 10px 16px;
    font-size: 1rem;
    border: none;
    background-color: #1a73e8;
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #1558b0;
}

/* LISTADO DE FERRETERÍAS */
section article {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 16px;
}

section article p {
    margin: 6px 0;
}

section article a {
    font-weight: 600;
}

/* PRODUCTOS POPULARES */
ul {
    padding-left: 18px;
}

ul li {
    margin-bottom: 8px;
}

/* BLOQUES INFORMATIVOS */
section {
    margin-bottom: 40px;
}

/* FOOTER */
footer {
    background: #ffffff;
    border-top: 1px solid #e0e0e0;
    margin-top: 48px;
}

footer p {
    max-width: 960px;
    margin: 0 auto;
    padding: 16px;
    font-size: 0.85rem;
    color: #666;
    text-align: center;
}

/* MOBILE */
@media (max-width: 600px) {

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    form {
        flex-direction: column;
    }

    button {
        width: 100%;
    }
}