* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 32px 16px;
    background: #faf7f2;
    color: #292420;
    font-family: Arial, sans-serif;
}

.tarjeta {
    max-width: 480px;
    margin: auto;
    padding: 32px;
    background: white;
    border: 1px solid #e6ddd3;
    border-radius: 16px;
}

h1, .volver {
    color: #7c2525;
}

.volver {
    text-decoration: none;
}

p, small {
    color: #625951;
    line-height: 1.5;
}

label {
    display: block;
    margin: 18px 0 7px;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #aaa;
    border-radius: 8px;
    font: inherit;
}

input:focus {
    outline: 2px solid #7c2525;
    outline-offset: 2px;
}

small {
    display: block;
    margin-top: 6px;
}

button {
    width: 100%;
    margin-top: 24px;
    padding: 14px;
    border: 0;
    border-radius: 8px;
    background: #7c2525;
    color: white;
    font: inherit;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #602020;
}

.exito, .errores {
    padding: 14px;
    margin: 16px 0;
    border-radius: 8px;
}

.exito {
    background: #e8f3e8;
    color: #285b2a;
}

.errores {
    background: #fce7e7;
    color: #8a2424;
}

.errores ul {
    margin: 0;
    padding-left: 20px;
}