@charset "UTF-8";
body {
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  margin: 0;
  padding: 0;
}

.login-container {
  max-width: 400px;
  margin: 130px auto;
  padding: 30px;
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 0 12px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
  color: #005b96;
}

form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  font-weight: bold;
}

input[type="email"],
input[type="password"] {
  padding: 10px;
  font-size: 14px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  padding: 10px;
  background-color: #005b96;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background-color: #004070;
}

.login-links {
  margin-top: 15px;
  text-align: center;
}

.login-links a {
  color: #005b96;
  text-decoration: none;
  font-size: 14px;
}

.login-links a:hover {
  text-decoration: underline;
}

.error {
  color: red;
  text-align: center;
  margin-top: 10px;
}

.session-expired-banner {
  background-color: #ffe4b2;
  border-left: 6px solid #ff9900;
  color: #333;
  padding: 12px 16px;
  margin: 0 auto 20px auto;
  max-width: 480px;
  font-weight: bold;
  font-size: 1rem;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.site-description {
  max-width: 700px;
  margin: 50px auto 100px auto;
  padding: 25px 30px;
  background-color: #f0f8ff;
  border-left: 6px solid #0077b6;
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.8;
  box-shadow: 0 2px 10px rgba(0, 119, 182, 0.1);
  color: #333;
}

.site-description strong {
  color: #0077b6;
  font-weight: bold;
}

.return-button {
  margin-top: 40px;
  text-align: left;
}

.return-button a {
  display: inline-block;
  padding: 10px 20px;
  background-color: #f0f0f0;
  color: #333;
  text-decoration: none;
  font-weight: bold;
  border-radius: 8px;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  font-size: 1rem;
}

.return-button a:hover {
  background-color: #333;
  color: #fff;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
}