/* Basic page styling */
body {
  font-family: Arial, sans-serif;
  background-color: #0d1b2a;
  margin: 0;
  padding: 0;
  color: #e0e1dd;
}

/* Header and navigation */
.site_header {
  background-color: #1b263b;
  color: white;
  text-align: center;
  padding: 20px;
}

.site_header h1 {
  margin: 0;
}

.main_nav {
  margin-top: 12px;
}

.main_nav a {
  color: #778da9;
  text-decoration: none;
  margin: 0 12px;
  font-weight: bold;
}

.main_nav a:hover {
  text-decoration: underline;
  color: #e0e1dd;
}

/* Main layout */
.main_content {
  width: 85%;
  margin: 30px auto;
}

.content_section {
  background-color: #1b263b;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.guestbook_table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.guestbook_table,
.guestbook_table th,
.guestbook_table td {
  border: 1px solid #415a77;
}

.guestbook_table th {
  background-color: #415a77;
  padding: 12px;
  color: #e0e1dd;
}

.guestbook_table td {
  padding: 12px;
  vertical-align: top;
  background-color: #1b263b;
}

.guestbook_form {
  display: flex;
  flex-direction: column;
}

.guestbook_form label {
  margin-top: 12px;
  margin-bottom: 5px;
  font-weight: bold;
}

.guestbook_form input[type="text"],
.guestbook_form textarea {
  padding: 10px;
  font-size: 16px;
  border: 1px solid #415a77;
  border-radius: 6px;
  background-color: #0d1b2a;
  color: #e0e1dd;
}

.guestbook_form textarea {
  min-height: 120px;
  resize: vertical;
}

.guestbook_form input[type="submit"] {
  margin-top: 18px;
  padding: 12px;
  background-color: #415a77;
  color: #e0e1dd;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
}

.guestbook_form input[type="submit"]:hover {
  background-color: #778da9;
}

.site_footer {
  text-align: center;
  padding: 18px;
  background-color: #1b263b;
  color: white;
  margin-top: 30px;
}

.error_message {
  color: #ff6b6b;
  font-weight: bold;
}

.finished_message {
  color: #4caf50;
  font-weight: bold;
}

.pagination {
  margin-top: 20px;
  text-align: center;
}

.pagination a,
.pagination span {
  display: inline-block;
  margin: 0 5px;
  padding: 8px 12px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
}

.pagination a {
  background-color: #415a77;
  color: #e0e1dd;
}

.pagination a:hover {
  background-color: #778da9;
}

.current_page {
  background-color: #778da9;
  color: #0d1b2a;
}

/* sorting links */
.sorting a {
  color: #90caf9; /* light blue */
  text-decoration: none;
  font-weight: bold;
}

.sorting a:visited {
  color: #90caf9; /* keep same color after click */
}

.sorting a:hover {
  color: #ffffff; /* white on hover */
  text-decoration: underline;
}