/* Global CSS Variables */
:root {
  /* Colors */
  --primary-color: #22c55e;
  --primary-hover: #16a34a;
  --secondary-color: #9ca3af;
  --accent-color: #fbbf24;
  
  --text-primary: #ffffff;
  --text-secondary: #e5e7eb;
  --text-light: #d1d5db;
  
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-accent: #262626;
  
  --border-color: #404040;
  --border-light: #525252;
  
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}


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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* Lists */
ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-xs);
}

/* Code */
code {
  font-family: var(--font-family-mono);
  font-size: 0.875em;
  background-color: var(--bg-accent);
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-sm);
}

pre {
  font-family: var(--font-family-mono);
  background-color: var(--bg-accent);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Buttons */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all var(--transition-fast);
}

/* Form elements */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: border-color var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

/* Layout utilities */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

/* Container variants for different content types */
.container-narrow {
  width: 100%;
  max-width: min(800px, 90vw);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

.container-wide {
  width: 100%;
  max-width: min(1600px, 98vw);
  margin: 0 auto;
  padding: 0 clamp(0.5rem, 2vw, 1rem);
}

.container-full {
  width: 100%;
  padding: 0 clamp(0.5rem, 2vw, 1rem);
}
.main {
  min-height: calc(100vh - 200px); /* Adjust based on header/footer height */
  padding: 0;
}

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

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

.font-bold { font-weight: var(--font-weight-bold); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-medium { font-weight: var(--font-weight-medium); }

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

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

.border { border: 1px solid var(--border-color); }
.border-light { border: 1px solid var(--border-light); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.transition { transition: all var(--transition-normal); }

/* Error Popup Styles */
.error-popup {
  position: fixed;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, 
    rgba(239, 68, 68, 0.95),
    rgba(220, 38, 38, 0.95)
  );
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow:
    var(--shadow-xl),
    0 0 20px rgba(239, 68, 68, 0.4);
  z-index: var(--z-modal);
  max-width: 90vw;
  width: auto;
  min-width: 300px;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.6);
  animation: errorSlideIn 0.4s ease-out forwards, errorSlideOut 0.4s ease-in 5.6s forwards;
  z-index: var(--z-modal);
}

.error-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  position: relative;
}

.error-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

.error-text {
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  flex: 1;
}

/* Error popup animations */
@keyframes errorSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes errorSlideOut {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
  }
}

/* Responsive utilities */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .error-popup {
    bottom: var(--spacing-lg);
    left: var(--spacing-md);
    right: var(--spacing-md);
    transform: none;
    max-width: none;
    min-width: auto;
  }
  
  @keyframes errorSlideIn {
    0% {
      opacity: 0;
      transform: translateY(100px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  @keyframes errorSlideOut {
    0% {
      opacity: 1;
      transform: translateY(0);
    }
    100% {
      opacity: 0;
      transform: translateY(100px);
    }
  }
  
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }

}


/* Success Popup Styles */
.success-popup {
  position: fixed;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, 
    rgba(34, 197, 94, 0.95),
    rgba(16, 185, 129, 0.95)
  );
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow:
    var(--shadow-xl),
    0 0 20px rgba(34, 197, 94, 0.4);
  z-index: var(--z-modal);
  max-width: 90vw;
  width: auto;
  min-width: 300px;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.6);
  animation: successSlideIn 0.4s ease-out forwards, successSlideOut 0.4s ease-in 5.6s forwards;
}

.success-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  position: relative;
}

.success-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

.success-text {
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  flex: 1;
}

/* Error popup animations */
@keyframes errorSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes errorSlideOut {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
  }
}

/* Success popup animations */
@keyframes successSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes successSlideOut {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
  }
}

/* Responsive utilities */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .error-popup,
  .success-popup {
    bottom: var(--spacing-lg);
    left: var(--spacing-md);
    right: var(--spacing-md);
    transform: none;
    max-width: none;
    min-width: auto;
  }
  
  @keyframes errorSlideIn {
    0% {
      opacity: 0;
      transform: translateY(100px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  @keyframes errorSlideOut {
    0% {
      opacity: 1;
      transform: translateY(0);
    }
    100% {
      opacity: 0;
      transform: translateY(100px);
    }
  }
  
  @keyframes successSlideIn {
    0% {
      opacity: 0;
      transform: translateY(100px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  @keyframes successSlideOut {
    0% {
      opacity: 1;
      transform: translateY(0);
    }
    100% {
      opacity: 0;
      transform: translateY(100px);
    }
  }
  
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
}