* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.hidden {
    display: none;
}

.guestbook-container {
    border: 1px solid black;
    padding: 20px;
    max-width: 800px;
    margin: 20px auto;
    background-color: white;
}

body{
    font-family: lucida grande,verdana,arial,helvetica;
    display: flex;
    flex-direction: column;
    padding-top: 50px;
    width: 600px;
    margin: 0 auto;
    border: 10px;
}

.content-align {
    margin-bottom:14px;
}

a{
    text-decoration: none;
}

a:hover{
    text-decoration: underline;
}



.messages ul{
    list-style-type: none;
    text-align: left;
    font-style: italic;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 30px;
}

#user_avatar {
    width: 25px;
    height: 25px;
    object-fit: cover;
    margin-left: 0;
    margin-right: 0;
    display: inline;
}

input{
    width: 400px;
    margin-left: 35px;
    margin-right: auto;
    display: block;
}

.hidden{
    display: none;
}


.nav_signed_in{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 15px;
}

.nav_signed_out {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav_signed_in > *, .nav_signed_out > * {
    font-size: 15px;
    font-family: arial;
    line-height: 1.5;
}

.nav_signed_in button, .nav_signed_out button {
    padding: 0;
    line-height: normal;
    display: inline-block;
    height: auto;
    min-width: 0;
    vertical-align: middle;
    border-radius: 3px;
    padding: 3px;
}

.flex-spacer {
    flex-grow: 1;
}

.home {
    display: flex;
    flex-direction: column;
    gap: 0px;
}

.homepage-doodle {
    width: 120px;
    max-width: 90vw;
    display: block;
    margin: 0 auto;
}

.home > *:not(:last-child) {
    margin-bottom: 32px;
}

.new_page {
    font-size: 15px;
    font-family: lucida grande,verdana,arial,helvetica;
    line-height: 1.5;
    display: block;
    padding: 0;
    margin: 0;
}

#message_form {
    margin-bottom: 32px;
    margin-top: 32px;
}

@media (max-width: 600px) {
  body {
    width: 100%;
    padding-top: 20px;
    margin: 0;
  }
  .content-align {
    margin-left: 10px;
  }
  .nav_signed_in {
    gap: 8px;
    flex-wrap: wrap;
  }
  .nav_signed_out {
    gap: 8px;
    flex-wrap: wrap;
  }
  .messages ul {
    font-size: 15px;
    gap: 4px;
    margin-left: 10px;
  }
  .new_page {
    margin-top: 20px;
    margin-left: 10px;
    font-size: 15px;
  }
  img {
    max-width: 80px;
    width: 100%;
  }
  #user_avatar {
    width: 20px;
    height: 20px;
  }
  input, textarea {
    width: 90vw;
    min-width: 0;
    margin-left: 10px;

  }
  textarea {
    margin-bottom: 20px;
  }
  #message_form {
    margin-bottom: 32px;
  }
  .messages {
    padding-top: 32px;
  }

  nav {
    margin-left: 10px;
  }
  .homepage-doodle {
    width: 70px;
    max-width: 90vw;
    margin-top: 16px;
  }
  .home {
    gap: 18px;
  }
  .home > *:not(:last-child) {
    margin-bottom: 18px;
  }
}

textarea::placeholder {
    font-family: lucida grande,verdana,arial,helvetica;
} 

.border{
  border: 10px;
}