html,
body {
  height: 100%;
  font-size: 16px;
  line-height: 1.4;
}

.navbar {
  padding-top: 15px;
  padding-bottom: 15px;
  border: 0;
  border-radius: 0;
  margin-bottom: 30px;
  font-size: 12px;
  letter-spacing: 3px;
}

.navbar-brand a {
  font-size: 2rem;
  font-weight: bold;
  text-decoration: none;
}

#signup,
#logout {
  border: 1px solid #1abc9c;
}

.navbar-nav li a:hover {
  color: #1abc9c !important;
}

.intro {
  background: #eafaf7;
  border-radius: 10px;
  padding: 30px 20px 20px 20px;
  margin-bottom: 30px;
  box-shadow: 0 2px 8px rgba(26, 188, 156, 0.07);
  text-align: center;
}

.intro-content h2 {
  color: #1abc9c;
  margin-bottom: 10px;
  font-size: 2rem;
  font-weight: bold;
}

.intro-content p {
  color: #444;
  font-size: 1.1rem;
  margin-bottom: 18px;
}

.btn-intro {
  display: inline-block;
  background: #1abc9c;
  color: #fff;
  padding: 10px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s;
}

.btn-intro:hover {
  background: #16a085;
}

.error-message {
  color: red;
}

.delete {
  display: inline-block;
  background-color: red;
  color: white;
  border: none;
  border-radius: 4px;
  padding: 3px 7px;
}

.posts {
  margin-top: 30px;
}

.post {
  background-color: #f7f7f7;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.post h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.post-time {
  color: #666;
  font-size: 14px;
  margin-bottom: 5px;
}

.post p {
  color: #444;
}

.post a {
  color: #007bff;
  text-decoration: none;
}

.post a:hover {
  text-decoration: underline;
}

.form-signin {
  width: 100%;
  max-width: 330px;
  padding: 15px;
  margin: 6% auto auto;
}

.form h1 {
  margin-bottom: 20px;
}

.form-signin .form-control {
  position: relative;
  box-sizing: border-box;
  height: auto;
  padding: 10px;
  font-size: 16px;
}

.form-signin .form-control:focus {
  z-index: 2;
}

.form-signin input {
  margin-bottom: 10px;
  border-radius: 3px;
}

.form-signin input[type="password"] {
  margin-bottom: 15px;
}

.social-link,
.link {
  width: 300px;
  margin: auto auto 15px;
  text-align: center;
}

.compose-form-div {
  margin-bottom: 10px;
}

.compose-form-div-b {
  margin-bottom: 15px;
}

.footer-padding {
  padding-bottom: 60px;
}

.footer {
  position: fixed;
  bottom: 0;
  text-align: center;
  width: 100%;
  height: 60px;
  background-color: #1abc9c;
}

.footer p {
  margin-top: 10px;
  margin-bottom: 3px;
  font-size: 12px;
  color: #fff;
}

.footer a {
  display: inline-block;
  margin-left: 10x;
  margin-right: 10px;
  border-radius: 3px;
  text-decoration: none;
  font-size: 16px;
  color: white;
}

.footer a:hover {
  transform: scale(1.2);
}