:root {
  /* Color variables */
  --primary-color: #0d71d4;
  --secondary-color: #353e47;
  --dark-color: #2c3e50;
  --light-color: #f5f5f5;
  --success-color: #27ae60;
  --danger-color: #e74c3c;
  --warning-color: #f39c12;
  --white: #ffffff;
  --text-color: #333333;
  --border-color: #dddddd;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--light-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header styles */
header {
  background: var(--primary-color);
  color: var(--white);
  padding: 1.5rem;
  text-align: center;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.header-content {
  flex: 1;
  min-width: 300px;
  padding: 0 15px;
  color: var(--white);
}


/* Navigation */
nav {
  background: var(--secondary-color);
  padding: 0.8rem 0;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

nav ul li {
  margin: 0.3rem 1.5rem;
}

nav ul li a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

nav ul li a:hover {
  background-color: var(--dark-color);
  transform: translateY(-2px);
}

/* Main content */
main {
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  flex: 1;
  width: 100%;
}

/* Footer */
footer {
  background: var(--dark-color);
  color: var(--white);
  text-align: center;
  padding: 1.5rem;
  margin-top: auto;
}

/* Form styles */
.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-control:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 113, 212, 0.1);
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--primary-color);
  color: var(--white);
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.btn:hover {
  background: #0b5cad;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-success {
  background: var(--success-color);
}

.btn-danger {
  background: var(--danger-color);
}

.btn-warning {
  background: var(--warning-color);
}

/* School cards */
.school-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.school-card {
  background: var(--white);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.school-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.school-logo {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.school-card h3 {
  margin: 0 0 0.5rem 0;
  color: var(--dark-color);
}

/* Tables */
.table-responsive {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.table th, .table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  background-color: var(--dark-color);
  color: var(--white);
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-3 {
  margin-top: 1rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    text-align: center;
  }
  
  .header-image, .header-image2 {
    margin: 10px auto;
  }
  
  nav ul {
    flex-direction: column;
    align-items: center;
  }
  
  nav ul li {
    margin: 0.5rem 0;
    width: 100%;
    text-align: center;
  }
  
  nav ul li a {
    display: block;
    width: 100%;
  }
  
  .form-container {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  main {
    padding: 1rem;
  }
  
  .school-card {
    padding: 1rem;
  }
}