* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f2f5fa;
    color: #172033;
}

.auth-contenedor {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-tarjeta {
    width: 100%;
    max-width: 520px;
    background: white;
    padding: 34px;
    border-radius: 18px;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.1);
}

.auth-logo {
    display: inline-block;
    color: #1460d8;
    font-size: 28px;
    font-weight: 800;
    text-decoration: none;
    margin-bottom: 14px;
}

.auth-tarjeta h1 {
    margin: 0 0 8px;
}

.auth-subtitulo {
    color: #667085;
    margin-bottom: 24px;
}

.auth-formulario {
    display: grid;
    gap: 10px;
}

.auth-formulario label {
    font-weight: 700;
    margin-top: 6px;
}

.auth-formulario input {
    width: 100%;
    padding: 13px;
    border: 1px solid #cfd6e4;
    border-radius: 9px;
    font-size: 16px;
}

.auth-formulario input:focus {
    outline: 2px solid #8bb7ff;
    border-color: #1460d8;
}

.auth-formulario button {
    margin-top: 14px;
    padding: 14px;
    border: 0;
    border-radius: 9px;
    background: #1460d8;
    color: white;
    font-weight: 800;
    font-size: 16px;
    cursor: pointer;
}

.auth-pie {
    text-align: center;
    margin-top: 22px;
}

.auth-pie a {
    color: #1460d8;
    font-weight: 700;
}

.mensaje-error,
.mensaje-info {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 18px;
}

.mensaje-error {
    background: #ffe7e7;
    color: #9d1c1c;
}

.mensaje-info {
    background: #e8f1ff;
    color: #174c94;
}

.fila-doble {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.fila-doble > div {
    display: grid;
    gap: 10px;
}

@media (max-width: 600px) {
    .auth-tarjeta {
        padding: 24px 18px;
    }

    .fila-doble {
        grid-template-columns: 1fr;
    }
}