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

html,
body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #f0f2f5;
  font-family: Arial, sans-serif;
}

header {
  background-color: #2c3e50;
  color: white;
  text-align: center;
  padding: 20px;
  height: 100px;
  font-size: 22px;
  display: flex;
  justify-content: center;
  align-items: center;
  letter-spacing: 1px;
}

.menu {
  background-color: #34495e;
  color: white;
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  list-style-type: none;
}

.menu a {
  text-decoration: none;
  color: #ecf0f1;
  font-weight: bold;
  transition: color 0.3s;
}

.menu a:hover {
  color: #1abc9c;
}

.body-section {
  flex: 1;
  display: flex;
  padding: 25px;
  gap: 20px;
}

.sidebar {
  background-color: #ecf0f1;
  width: 20%;
  padding: 20px;
  text-align: center;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

.content {
  background-color: #fff;
  width: 80%;
  padding: 25px;
  text-align: center;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 15px;
  align-items: start;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.content img {
  width: 200px;
  height: 200px;
  border-radius: 8px;
}

.main-footer {
  background-color: #2c3e50;
  color: white;
  padding: 15px;
  text-align: center;
  margin-top: auto;
  font-size: 14px;
}

/* login page  */
.login {
  margin: 0 auto;
  padding-top: 30px;
  max-width: 400px;
}

.login h2 {
  text-align: center;
  margin-bottom: 25px;
  color: #2c3e50;
}

.login form input {
  width: 100%;
  padding: 12px;
  margin: 12px 0;
  border: 1px solid #bdc3c7;
  border-radius: 6px;
  font-size: 14px;
}

.login form button {
  width: 100%;
  padding: 12px;
  background: #1abc9c;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  transition: background 0.3s;
}

.login form button:hover {
  background: #16a085;
}