:root {
  --primary-color: #8BC34A;
  --primary-light: #DCEDC8;
  --primary-dark: #689F38;
  --text-dark: #212121;
  --text-light: #f5f5f5;
  --background: #f9f9f9;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--background);
  color: var(--text-dark);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  padding-bottom: 80px;
}

/* Header */
.site-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--text-dark);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  box-shadow: var(--shadow);
  position: relative;
}

.logo-placeholder img {
  width: 150px;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-nav a, 
.main-nav button {
  text-decoration: none;
  background: var(--primary-light);
  color: var(--text-dark);
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
}

.main-nav a:hover, 
.main-nav button:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-dark);
  transform: translateY(-2px);
}

.main-nav a:focus, 
.main-nav button:focus {
  outline: 2px solid var(--primary-dark);
  outline-offset: 2px;
}

/* Mobile Menu Button */
.hamburger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 100;
}

.hamburger-menu span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  margin: 5px 0;
  transition: var(--transition);
}

/* Main Content */
main {
  padding: 2rem;
  min-height: calc(100vh - 160px);
}

.home {
  background: url('../images/home-background.jpg') no-repeat center center/cover;
  min-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero {
  text-align: center;
  background: rgba(0, 0, 0, 0.7);
  padding: 2rem;
  border-radius: 15px;
  max-width: 800px;
  width: 90%;
  backdrop-filter: blur(5px);
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  color: white;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: #eee;
}

#about-section {
  margin-top: 2rem;
}

#about-button {
  background-color: var(--primary-light);
  color: var(--text-dark);
  padding: 1rem 2rem;
  border: none;
  border-radius: 2rem;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
  font-weight: 600;
}

#about-button:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px) scale(1.05);
}

/* About Page Specific Styles */
.about-page {
  min-height: calc(100vh - 80px);
  padding-bottom: 80px;
}

.about-hero {
  height: 50vh;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  position: relative;
  overflow: hidden;
}

.about-image {
  width: 100%;
  height: 100%;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.glass-container {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 2rem;
  max-width: 800px;
  margin: -100px auto 2rem;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow);
}

.about-section {
  margin-top: 1.5rem;
}

.about-section p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--text-dark);
  text-align: center;
  padding: 1.5rem;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  font-weight: 500;
}

/* Language Toggle */
.language-toggle {
  background: var(--primary-light);
  color: var(--text-dark);
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-weight: 600;
  border: 2px solid transparent;
}

.language-toggle:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-dark);
}

/* Responsive Styles */
@media (max-width: 768px) {
  .main-nav {
      position: fixed;
      top: 0;
      right: -100%;
      width: 70%;
      height: 100vh;
      background: white;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      transition: var(--transition);
      z-index: 99;
      box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  }

  .main-nav.active {
      right: 0;
  }

  .hamburger-menu {
      display: block;
  }

  .hamburger-menu.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
  }

  .hamburger-menu.active span:nth-child(2) {
      opacity: 0;
  }

  .hamburger-menu.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero h1 {
      font-size: 2rem;
  }

  .hero p {
      font-size: 1.1rem;
  }

  .glass-container {
      margin: -50px 1rem 2rem;
      padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
      font-size: 1.8rem;
  }

  .hero p {
      font-size: 1rem;
  }

  #about-button {
      padding: 0.75rem 1.5rem;
      font-size: 1rem;
  }

  .glass-container {
      margin: -30px 1rem 2rem;
      padding: 1rem;
  }
}

/* Registration Page Styles */
.register-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 160px);
  padding: 2rem;
  background-color: var(--background);
}

.register-container {
  width: 100%;
  max-width: 800px;
  background: white;
  border-radius: 15px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.register-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  padding: 2rem;
  text-align: center;
}

.register-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.register-header p {
  opacity: 0.9;
}

.register-form {
  padding: 2rem;
}

.form-section {
  border: none;
  margin-bottom: 2rem;
  padding: 0;
}

.form-section legend {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 1rem;
  padding: 0 0.5rem;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 2px rgba(139, 195, 74, 0.2);
}

.error-message {
  color: #e74c3c;
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}

.form-group.invalid input {
  border-color: #e74c3c;
}

.form-group.invalid .error-message {
  display: block;
}

.age-group-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

.age-option input {
  position: absolute;
  opacity: 0;
}

.age-bubble {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border: 2px solid #ddd;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  height: 100%;
  text-align: center;
}

.age-option input:checked + .age-bubble {
  border-color: var(--primary-color);
  background-color: rgba(139, 195, 74, 0.1);
}

.age-range {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 0.25rem;
}

.age-label {
  font-size: 0.9rem;
  color: var(--text-dark);
}

.form-actions {
  text-align: center;
  margin-top: 2rem;
}

.register-button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  max-width: 300px;
}

.register-button:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.login-link {
  margin-top: 1rem;
  color: var(--text-dark);
}

.login-link a {
  color: var(--primary-dark);
  font-weight: 500;
  text-decoration: none;
}

.login-link a:hover {
  text-decoration: underline;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .register-container {
      margin: 1rem;
  }
  
  .age-group-options {
      grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .register-header {
      padding: 1.5rem;
  }
  
  .register-form {
      padding: 1.5rem;
  }
}

/* Login Page Styles */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 160px);
  padding: 2rem;
  background-color: var(--background);
}

.login-container {
  width: 100%;
  max-width: 500px;
  background: white;
  border-radius: 15px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.login-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  padding: 2rem;
  text-align: center;
}

.login-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.login-header p {
  opacity: 0.9;
}

.login-form {
  padding: 2rem;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 2px rgba(139, 195, 74, 0.2);
}

.error-message {
  color: #e74c3c;
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: none;
}

.form-group.invalid input {
  border-color: #e74c3c;
}

.form-group.invalid .error-message {
  display: block;
}

.form-actions {
  text-align: center;
  margin-top: 2rem;
}

.login-button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  max-width: 300px;
}

.login-button:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.register-link {
  margin-top: 1rem;
  color: var(--text-dark);
}

.register-link a {
  color: var(--primary-dark);
  font-weight: 500;
  text-decoration: none;
}

.register-link a:hover {
  text-decoration: underline;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .login-container {
      margin: 1rem;
  }
}

@media (max-width: 480px) {
  .login-header {
      padding: 1.5rem;
  }
  
  .login-form {
      padding: 1.5rem;
  }
}

/* Password toggle styles */
.password-wrapper {
  position: relative;
  width: 100%;
}

.password-toggle {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  user-select: none;
  font-size: 1.2em;
}

input[type="password"], 
input[type="text"] {
  padding-right: 40px !important;
  width: 100%;
}

/* Notification styles */
.notification {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: 4px;
  color: white;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.notification.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-10px);
}

.notification-info {
  background-color: var(--primary-color);
}

.notification-success {
  background-color: #2ecc71;
}

.notification-warning {
  background-color: #f39c12;
}

.notification-error {
  background-color: #e74c3c;
}

.login-link a,
.register-link a {
  color: var(--primary-dark);
  font-weight: 500;
  text-decoration: none;
}

.login-link a:hover,
.register-link a:hover {
  text-decoration: underline;
}

a {
  text-decoration: none; /* Removes underline */
  color: inherit; /* Keeps the text color same as the surrounding elements */
}

a:hover {
  text-decoration: none; /* Ensures no underline on hover */
}