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

body {
  font-family: 'Roboto', Arial, sans-serif;
  background: #f5f5f5;
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 250px;
  background: #1976d2;
  color: white;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
  padding: 20px;
  background: #1565c0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
  font-size: 20px;
  font-weight: 500;
}

.sidebar-user {
  padding: 15px 20px;
  background: rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-user-email {
  font-size: 13px;
  opacity: 0.9;
  margin-bottom: 5px;
}

.sidebar-user-role {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.sidebar-menu {
  padding: 10px 0;
}

.sidebar-menu a {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  color: white;
  text-decoration: none;
  transition: background 0.2s;
}

.sidebar-menu a:hover {
  background: rgba(255, 255, 255, 0.1);
}

.sidebar-menu a.active {
  background: rgba(255, 255, 255, 0.2);
}

.sidebar-menu a .material-icons {
  margin-right: 12px;
  font-size: 20px;
}

/* Main Content */
.main-content {
  margin-left: 250px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background: white;
  padding: 15px 30px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar h1 {
  font-size: 24px;
  font-weight: 400;
  color: #333;
}

.navbar-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Container */
.container {
  flex: 1;
  padding: 30px;
  max-width: 1400px;
  width: 100%;
}

/* Footer */
.footer {
  background: white;
  padding: 20px 30px;
  text-align: center;
  color: #666;
  font-size: 14px;
  box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.05);
}

/* Material Design Components */
h1 {
  color: #333;
  margin-bottom: 20px;
  font-weight: 400;
}

h2 {
  color: #555;
  margin: 20px 0 10px;
  font-weight: 400;
}

h3 {
  color: #ffffff;
  margin: 15px 0 10px;
  font-weight: 400;
}

.card {
  background: white;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 20px;
  margin-bottom: 20px;
}

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

label {
  display: block;
  margin-bottom: 8px;
  color: #666;
  font-weight: 500;
  font-size: 14px;
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
  font-family: 'Roboto', Arial, sans-serif;
  transition: border-color 0.2s;
}

input:focus,
select:focus {
  outline: none;
  border-color: #1976d2;
}

button {
  background: #1976d2;
  color: white;
  padding: 10px 24px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: background 0.2s, box-shadow 0.2s;
}

button:hover {
  background: #1565c0;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Tables, badges, cards, links kept consistent */
a {
  color: #1976d2;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}