/* Common styles used across all pages */

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f7fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Universal Page Header */
.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 5px 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.page-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-logo {
  font-size: 1.5rem;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.page-header-right {
  display: flex;
  align-items: center;
  gap: 15px;
}

.welcome-message {
  font-size: 14px;
  opacity: 0.9;
}

/* Hamburger Menu for All Pages */
.page-hamburger {
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: all 0.3s ease;
  background: rgba(255,255,255,0.1);
}

.page-hamburger:hover {
  background: rgba(255,255,255,0.2);
}

.page-hamburger .line {
  width: 25px;
  height: 3px;
  background-color: white;
  margin: 3px 0;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.page-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 5px;
  background: white;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  min-width: 180px;
  overflow: hidden;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: all 0.3s ease;
}

.page-dropdown.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
}

.page-dropdown a {
  display: block;
  padding: 12px 16px;
  color: #333;
  text-decoration: none;
  transition: background-color 0.3s ease;
  border-bottom: 1px solid #f0f0f0;
}

.page-dropdown a:last-child {
  border-bottom: none;
}

.page-dropdown a:hover {
  background-color: #f8f9fa;
  color: #4CAF50;
}

/* Page content spacing to account for fixed header */
.page-content {
  margin-top: 50px;
  min-height: calc(100vh - 50px);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5em;
}

p {
  margin-bottom: 1em;
}

a {
  color: #4CAF50;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #45a049;
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1.5;
}

.btn-primary {
  background-color: #4CAF50;
  color: white;
}

.btn-primary:hover {
  background-color: #45a049;
  text-decoration: none;
  color: white;
}

.btn-secondary {
  background-color: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background-color: #5a6268;
  text-decoration: none;
  color: white;
}

.btn-outline {
  background-color: transparent;
  color: #4CAF50;
  border: 2px solid #4CAF50;
}

.btn-outline:hover {
  background-color: #4CAF50;
  color: white;
  text-decoration: none;
}

/* Utility classes */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.mb-20 {
  margin-bottom: 20px;
}

.mt-20 {
  margin-top: 20px;
}

/* Loading states */
.loading {
  text-align: center;
  padding: 20px;
  color: #666;
  font-style: italic;
}

.loading-spinner {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #4CAF50;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 15px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Messages */
.error-message {
  background-color: #f8d7da;
  color: #721c24;
  padding: 12px;
  border: 1px solid #f5c6cb;
  border-radius: 4px;
  margin: 10px 0;
}

.success-message {
  background-color: #d4edda;
  color: #155724;
  padding: 12px;
  border: 1px solid #c3e6cb;
  border-radius: 4px;
  margin: 10px 0;
}

.loading-message {
  background-color: #d1ecf1;
  color: #0c5460;
  padding: 12px;
  border: 1px solid #bee5eb;
  border-radius: 4px;
  margin: 10px 0;
  text-align: center;
}

/* Toast messages */
.error-toast,
.success-toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 15px 20px;
  border-radius: 6px;
  color: white;
  font-weight: 500;
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

.error-toast {
  background-color: #dc3545;
}

.success-toast {
  background-color: #28a745;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Form elements */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
  color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #4CAF50;
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Responsive design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}