* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #f4f4f4;
  color: #222;
}

/* Navbar */
.navbar {
  background: #1b3a5c;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
}

.navbar .logo {
  font-size: 22px;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
}

.navbar a {
  color: #fff;
  text-decoration: none;
  margin-left: 20px;
}

.navbar .btn {
  background: #e63946;
  padding: 8px 16px;
  border-radius: 5px;
}

/* Hero section */
.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 32px;
  margin-bottom: 15px;
}

.hero p {
  color: #555;
  margin-bottom: 25px;
}

.btn {
  display: inline-block;
  background: #e63946;
  color: #fff;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.btn-outline {
  background: #fff;
  color: #1b3a5c;
  border: 1px solid #1b3a5c;
}

/* Modules section */
.modules {
  display: flex;
  gap: 20px;
  padding: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.module-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  width: 280px;
}

.module-card h3 {
  color: #1b3a5c;
  margin-bottom: 10px;
}

.module-card ul {
  list-style: none;
  margin-top: 10px;
}

.module-card ul li {
  padding: 4px 0;
  font-size: 14px;
  color: #444;
}

/* Forms (login/register) */
.form-container {
  max-width: 400px;
  margin: 60px auto;
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  border: 1px solid #ddd;
}

.form-container h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #1b3a5c;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
  font-weight: bold;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.role-select {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.role-select button {
  flex: 1;
  padding: 8px;
  border: 1px solid #1b3a5c;
  background: #fff;
  color: #1b3a5c;
  border-radius: 5px;
  cursor: pointer;
}

.role-select button.active {
  background: #1b3a5c;
  color: #fff;
}

.form-footer {
  text-align: center;
  margin-top: 15px;
  font-size: 14px;
}

/* Dashboard */
.dashboard {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: #fff;
  border-right: 1px solid #ddd;
  padding: 20px;
}

.sidebar button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px;
  margin-bottom: 5px;
  background: none;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 14px;
}

.sidebar button.active {
  background: #1b3a5c;
  color: #fff;
}

.main-content {
  flex: 1;
  padding: 30px;
}

.card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

table th, table td {
  padding: 10px;
  border-bottom: 1px solid #ddd;
  text-align: left;
  font-size: 14px;
}

.status {
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
}

.status.accepted { background: #d4edda; color: #155724; }
.status.pending { background: #fff3cd; color: #856404; }
.status.declined { background: #f8d7da; color: #721c24; }

.panel { display: none; }
.panel.active { display: block; }