/* ============================================
   GLOBAL CSS VARIABLES & BASE STYLES
   ============================================ */

:root {
  /* Colors */
  --color-bg-primary: #0a0e27;
  --color-bg-secondary: #1a1f3a;
  --color-bg-tertiary: #252d47;
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0aec0;
  --color-text-tertiary: #718096;
  --color-border: #2d3748;
  --color-border-light: #4a5568;
  
  /* Neon Colors */
  --color-neon-blue: #00d4ff;
  --color-neon-purple: #a855f7;
  --color-neon-pink: #ec4899;
  --color-neon-cyan: #06b6d4;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
  --gradient-secondary: linear-gradient(135deg, #00d4ff 0%, #0891b2 100%);
  --gradient-dark: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(168, 85, 247, 0.4);
  --shadow-glow-blue: 0 0 20px rgba(0, 212, 255, 0.3);
  
  /* Blur */
  --blur-sm: 8px;
  --blur-md: 16px;
  --blur-lg: 24px;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.6s ease-in-out;
  
  /* 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: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Font Sizes */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  --font-4xl: 2.25rem;
  --font-5xl: 3rem;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neon-blue);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--font-5xl);
}

h2 {
  font-size: var(--font-4xl);
}

h3 {
  font-size: var(--font-3xl);
}

h4 {
  font-size: var(--font-2xl);
}

h5 {
  font-size: var(--font-xl);
}

h6 {
  font-size: var(--font-lg);
}

p {
  font-size: var(--font-base);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-neon-cyan);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left var(--transition-normal);
  z-index: -1;
}

.btn:hover::before {
  left: 100%;
}

/* Button Variants */

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-glow);
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(168, 85, 247, 0.6);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-neon-blue);
  border: 1.5px solid var(--color-neon-blue);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-light);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-neon-blue);
  color: var(--color-neon-blue);
}

.btn-danger {
  background: transparent;
  color: #ff6b6b;
  border: 1.5px solid #ff6b6b;
}

.btn-danger:hover {
  background: rgba(255, 107, 107, 0.1);
  box-shadow: 0 0 20px rgba(255, 107, 107, 0.4);
  transform: translateY(-2px);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-sm);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-lg);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   GLASS MORPHISM CARDS
   ============================================ */

.glass-card {
  background: rgba(26, 31, 58, 0.6);
  backdrop-filter: blur(var(--blur-md));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.glass-card:hover {
  border-color: rgba(168, 85, 247, 0.3);
  box-shadow: 0 8px 32px rgba(168, 85, 247, 0.2);
  transform: translateY(-4px);
}

.glass-card:hover::before {
  opacity: 1;
}

/* ============================================
   INPUTS & FORMS
   ============================================ */

.input-group {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input[type='text'],
input[type='email'],
input[type='password'],
input[type='number'],
textarea,
select {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-base);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
  font-family: inherit;
}

input[type='text']::placeholder,
input[type='email']::placeholder,
input[type='password']::placeholder,
input[type='number']::placeholder,
textarea::placeholder {
  color: var(--color-text-tertiary);
}

input[type='text']:focus,
input[type='email']:focus,
input[type='password']:focus,
input[type='number']:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-neon-blue);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.2);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.container-sm {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.container-md {
  max-width: 896px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

/* ============================================
   FLEXBOX & GRID UTILITIES
   ============================================ */

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

.flex-between {
  align-items: center;
  justify-content: space-between;
}

.flex-start {
  align-items: flex-start;
  justify-content: flex-start;
}

.flex-end {
  align-items: flex-end;
  justify-content: flex-end;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.gap-xl {
  gap: var(--spacing-xl);
}

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-down {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-left {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-right {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes glow-pulse {
  0%,
  100% {
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
  }
  50% {
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.6);
  }
}

@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes waveform {
  0%,
  100% {
    height: 20px;
  }
  25% {
    height: 40px;
  }
  50% {
    height: 60px;
  }
  75% {
    height: 40px;
  }
}

/* Animation Classes */

.animate-fade-in {
  animation: fade-in var(--transition-normal) ease-in-out forwards;
}

.animate-slide-up {
  animation: slide-up var(--transition-normal) ease-in-out forwards;
}

.animate-slide-down {
  animation: slide-down var(--transition-normal) ease-in-out forwards;
}

.animate-float {
  animation: float var(--transition-slow) ease-in-out infinite;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.animate-glow-pulse {
  animation: glow-pulse 2s ease-in-out infinite;
}

.animate-rotate {
  animation: rotate 2s linear infinite;
}

.animate-bounce {
  animation: bounce 0.6s ease-in-out infinite;
}

/* ============================================
   LOADING SPINNER
   ============================================ */

.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 212, 255, 0.2);
  border-top-color: var(--color-neon-blue);
  border-radius: 50%;
  animation: rotate 0.8s linear infinite;
}

.spinner-sm {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 4px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

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

.text-uppercase {
  text-transform: uppercase;
}

.text-capitalize {
  text-transform: capitalize;
}

.text-sm {
  font-size: var(--font-sm);
}

.text-lg {
  font-size: var(--font-lg);
}

.text-bold {
  font-weight: 700;
}

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

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

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-blue {
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mt-xs {
  margin-top: var(--spacing-xs);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mt-2xl {
  margin-top: var(--spacing-2xl);
}

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

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.mb-2xl {
  margin-bottom: var(--spacing-2xl);
}

.my-md {
  margin: var(--spacing-md) 0;
}

.my-lg {
  margin: var(--spacing-lg) 0;
}

.my-xl {
  margin: var(--spacing-xl) 0;
}

.px-md {
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.px-lg {
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.py-md {
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.py-lg {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
}

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

.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);
}

.shadow-xl {
  box-shadow: var(--shadow-xl);
}

.overflow-hidden {
  overflow: hidden;
}

.cursor-pointer {
  cursor: pointer;
}

/* ============================================
   RESPONSIVE GRID ADJUSTMENTS
   ============================================ */

@media (max-width: 768px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: var(--font-4xl);
  }

  h2 {
    font-size: var(--font-3xl);
  }

  h3 {
    font-size: var(--font-2xl);
  }
}

@media (max-width: 480px) {
  .grid-3,
  .grid-4,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: var(--font-3xl);
  }

  h2 {
    font-size: var(--font-2xl);
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}

/* footer */
footer {
  text-align: center;
  padding: 20px;
  color: #333;
  font-size: 14px;
}
.stavan-labs {
  /* color: #333; */
  text-decoration: none;
}