/* Estilos generales */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0.9375rem;
    background-color: #f9f9f9;
    color: #333;
    font-size: 1.125rem;
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3 {
    margin: 0 0 1.25rem;
    padding: 0;
    text-align: center;
    font-size: 1.75rem;
}

button {
    display: block;
    width: 100%;
    padding: 1.125rem;
    margin: 0.9375rem 0;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.125rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    box-sizing: border-box;
    min-height: 3.75rem;
}

button:hover {
    background-color: #0056b3;
}

button:active {
    background-color: #004494;
    transform: translateY(0.0625rem);
}

input[type="text"] {
    display: block;
    width: 100%;
    margin: 0.9375rem 0;
    padding: 1.125rem;
    font-size: 1.125rem;
    border: 0.125rem solid #ccc;
    border-radius: 0.5rem;
    box-sizing: border-box;
    min-height: 3.75rem;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 0.1875rem rgba(0, 123, 255, 0.25);
}

.container {
    max-width: 37.5rem;
    margin: 0 auto;
    padding: 1.25rem;
    background-color: #fff;
    box-shadow: 0 0.25rem 0.375rem rgba(0, 0, 0, 0.1);
    border-radius: 0.75rem;
}

nav {
    background-color: #007bff;
    color: white;
    padding: 0;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: space-around;
    padding: 0;
    margin: 0;
    background-color: #007bff;
}

nav ul li {
    flex: 1;
}

nav ul li a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 1.125rem 0.9375rem;
    font-size: 1.125rem;
    transition: background-color 0.3s ease;
    text-align: center;
}

nav ul li a:hover {
    background-color: #0056b3;
    text-decoration: none;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.25rem 0;
    font-size: 1rem;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 0.75rem 0.5rem;
    text-align: center;
}

table th {
    background-color: #007bff;
    color: white;
    font-size: 1rem;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul {
    list-style-type: none;
    padding: 0;
}

ul li {
    margin: 0.625rem 0;
}

form {
    margin: 1.25rem 0;
}

@media (min-width: 768px) and (max-width: 1024px) {
    body {
        font-size: 1.25rem;
        padding: 1.25rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    button, input[type="text"] {
        font-size: 1.25rem;
        padding: 1.25rem;
    }
    
    nav ul li a {
        font-size: 1.25rem;
        padding: 1.25rem 0.9375rem;
    }
}

@media (min-width: 1025px) {
    body {
        font-size: 1rem;
        padding: 1.25rem;
    }
    
    h1 {
        font-size: 2.25rem;
    }
    
    button, input[type="text"] {
        font-size: 1rem;
        padding: 0.9375rem;
        min-height: 3.125rem;
    }
    
    nav ul li a {
        font-size: 1.125rem;
        padding: 0.9375rem;
    }
    
    .container {
        max-width: 50rem;
    }
}

@media (max-width: 767px) {
    body {
        font-size: 1.25rem;
        padding: 0.625rem;
    }
    
    h1 {
        font-size: 2rem;
        margin-bottom: 1.875rem;
    }
    
    button {
        font-size: 1.25rem;
        padding: 1.375rem;
        margin: 1.25rem 0;
        min-height: 4.0625rem;
        font-weight: 500;
    }
    
    input[type="text"] {
        font-size: 1.25rem;
        padding: 1.375rem;
        margin: 1.25rem 0;
        min-height: 4.0625rem;
    }
    
    nav ul li a {
        font-size: 1.25rem;
        padding: 1.375rem 0.625rem;
        font-weight: 500;
    }
    
    .container {
        margin: 0.625rem;
        padding: 1.5625rem;
        border-radius: 0.9375rem;
    }
    
    table {
        font-size: 1.125rem;
    }
    
    table th, table td {
        padding: 0.9375rem 0.5rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 1.375rem;
        padding: 0.5rem;
    }
    
    h1 {
        font-size: 2.25rem;
        margin-bottom: 1.875rem;
    }
    
    button {
        font-size: 1.375rem;
        padding: 1.5625rem;
        margin: 1.5625rem 0;
        min-height: 4.375rem;
        font-weight: 600;
        border-radius: 0.75rem;
    }
    
    input[type="text"] {
        font-size: 1.375rem;
        padding: 1.5625rem;
        margin: 1.5625rem 0;
        min-height: 4.375rem;
        border-radius: 0.75rem;
    }
    
    nav ul li a {
        font-size: 1.375rem;
        padding: 1.5625rem 0.5rem;
        font-weight: 600;
    }
    
    .container {
        margin: 0.3125rem;
        padding: 1.25rem;
        border-radius: 0.9375rem;
    }
    
    table {
        font-size: 1.25rem;
    }
    
    table th, table td {
        padding: 1.125rem 0.375rem;
        font-size: 1.125rem;
    }
}

@media (max-width: 320px) {
    nav ul li a {
        font-size: 1.25rem;
        padding: 1.25rem 0.3125rem;
    }
    
    table th, table td {
        padding: 0.9375rem 0.25rem;
        font-size: 1rem;
    }
}

*:focus {
    outline: 0.125rem solid #007bff;
    outline-offset: 0.125rem;
}

* {
    transition: all 0.3s ease;
}

@media screen and (-webkit-min-device-pixel-ratio: 0) {
    select:focus,
    textarea:focus,
    input:focus {
        font-size: 1rem;
    }
}