/* CSS Variables */
:root {
  --color-primary: #3DEC02;
  --color-primary-dark: #2db802;
  --color-neutral: #333333;
  --color-neutral-light: #888888;
  --color-white: #FFFFFF;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

/* Base Styles */
body {
  font-family: var(--font-body);
  color: var(--color-neutral);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
}

/* Button Styles */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-neutral);
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Form Styles */
.form-input {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid #ddd;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(61, 236, 2, 0.2);
}

/* Card Styles */
.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* Utility Classes */
.text-primary {
  color: var(--color-primary);
}

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

.text-neutral {
  color: var(--color-neutral);
}

.text-neutral-light {
  color: var(--color-neutral-light);
}

/* Responsive Utilities */
@media (max-width: 768px) {
  .mobile-hidden {
    display: none;
  }
  
  .mobile-only {
    display: block;
  }
}

@media (min-width: 769px) {
  .mobile-only {
    display: none;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

/* Toast Notification */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-primary);
  color: var(--color-neutral);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transform: translateX(200%);
  transition: transform 0.3s ease;
}

.toast.show {
  transform: translateX(0);
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
a:focus, button:focus, input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}