/* ============================================
   HIGH-TECH CASINO HOTEL - BASE CSS
   Futuristic | Neon | Premium | Immersive
   ============================================ */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
  /* Color Palette - Cyber Futuristic Theme */
  --color-midnight-black: #0a0a0f;
  --color-deep-space: #13131a;
  --color-dark-slate: #1a1a24;
  --color-steel-gray: #2d2d3d;
  --color-silver-gray: #4a4a5e;
  
  /* Neon Accents */
  --color-neon-purple: #b24bf3;
  --color-neon-purple-glow: #9333ea;
  --color-electric-blue: #0ea5e9;
  --color-electric-blue-glow: #0284c7;
  --color-vibrant-cyan: #06b6d4;
  --color-vibrant-cyan-glow: #0891b2;
  --color-neon-pink: #ec4899;
  --color-neon-pink-glow: #db2777;
  
  /* Semantic Colors */
  --color-primary: var(--color-neon-purple);
  --color-primary-hover: var(--color-neon-purple-glow);
  --color-secondary: var(--color-electric-blue);
  --color-accent: var(--color-vibrant-cyan);
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  
  /* Background Colors */
  --color-bg-primary: var(--color-midnight-black);
  --color-bg-secondary: var(--color-deep-space);
  --color-bg-tertiary: var(--color-dark-slate);
  --color-bg-elevated: var(--color-steel-gray);
  
  /* Text Colors */
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-tertiary: #94a3b8;
  --color-text-muted: #64748b;
  
  /* Border Colors */
  --color-border-primary: rgba(178, 75, 243, 0.2);
  --color-border-secondary: rgba(14, 165, 233, 0.2);
  --color-border-subtle: rgba(255, 255, 255, 0.1);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-display: 'Orbitron', 'Exo 2', 'Rajdhani', monospace, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
  
  /* Font Sizes */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  --font-size-7xl: 4.5rem;      /* 72px */
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 1.75;
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Spacing Scale */
  --space-0: 0;
  --space-1: 0.25rem;    /* 4px */
  --space-2: 0.5rem;     /* 8px */
  --space-3: 0.75rem;    /* 12px */
  --space-4: 1rem;       /* 16px */
  --space-5: 1.25rem;    /* 20px */
  --space-6: 1.5rem;     /* 24px */
  --space-8: 2rem;       /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.25rem;   /* 4px */
  --radius-base: 0.5rem;  /* 8px */
  --radius-md: 0.75rem;   /* 12px */
  --radius-lg: 1rem;      /* 16px */
  --radius-xl: 1.5rem;    /* 24px */
  --radius-2xl: 2rem;     /* 32px */
  --radius-full: 9999px;
  
  /* Shadows - Enhanced with neon glows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-base: 0 2px 4px 0 rgba(0, 0, 0, 0.6);
  --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.8);
  --shadow-xl: 0 16px 32px 0 rgba(0, 0, 0, 0.9);
  --shadow-2xl: 0 24px 48px 0 rgba(0, 0, 0, 0.95);
  
  /* Neon Glow Shadows */
  --glow-purple: 0 0 20px rgba(178, 75, 243, 0.4), 0 0 40px rgba(178, 75, 243, 0.2);
  --glow-purple-intense: 0 0 30px rgba(178, 75, 243, 0.6), 0 0 60px rgba(178, 75, 243, 0.3), 0 0 90px rgba(178, 75, 243, 0.1);
  --glow-blue: 0 0 20px rgba(14, 165, 233, 0.4), 0 0 40px rgba(14, 165, 233, 0.2);
  --glow-blue-intense: 0 0 30px rgba(14, 165, 233, 0.6), 0 0 60px rgba(14, 165, 233, 0.3), 0 0 90px rgba(14, 165, 233, 0.1);
  --glow-cyan: 0 0 20px rgba(6, 182, 212, 0.4), 0 0 40px rgba(6, 182, 212, 0.2);
  --glow-cyan-intense: 0 0 30px rgba(6, 182, 212, 0.6), 0 0 60px rgba(6, 182, 212, 0.3), 0 0 90px rgba(6, 182, 212, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index Scale */
  --z-base: 1;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* ============================================
   RESET & NORMALIZE
   ============================================ */

/* Box Sizing */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Document */
html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

/* Respect motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Remove default margins */
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
li,
figure,
figcaption,
blockquote,
dl,
dd {
  margin: 0;
}

/* Remove list styles */
ul,
ol {
  list-style: none;
  padding: 0;
}

/* Responsive images and media */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Form elements inherit font */
input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* Remove button styles */
button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

/* Better table defaults */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ============================================
   BASE STYLES
   ============================================ */

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(178, 75, 243, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(14, 165, 233, 0.05) 0%, transparent 50%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Headings */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
  background: linear-gradient(135deg, var(--color-neon-purple) 0%, var(--color-electric-blue) 50%, var(--color-vibrant-cyan) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: var(--glow-purple);
}

h2 {
  font-size: var(--font-size-4xl);
  background: linear-gradient(135deg, var(--color-electric-blue) 0%, var(--color-vibrant-cyan) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

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

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

/* Responsive heading sizes */
@media (max-width: 768px) {
  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);
  }
}

/* Paragraphs */
p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base), text-shadow var(--transition-base);
  position: relative;
}

a:hover,
a:focus {
  color: var(--color-primary-hover);
  text-shadow: var(--glow-purple);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Strong and emphasis */
strong,
b {
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

em,
i {
  font-style: italic;
}

/* Code */
code,
pre {
  font-family: var(--font-mono);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
}

code {
  padding: 0.125rem 0.375rem;
  font-size: 0.875em;
  color: var(--color-accent);
}

pre {
  padding: var(--space-4);
  overflow-x: auto;
  line-height: var(--line-height-normal);
}

pre code {
  padding: 0;
  background: none;
  border: none;
}

/* Blockquote */
blockquote {
  margin: var(--space-6) 0;
  padding-left: var(--space-6);
  border-left: 4px solid var(--color-primary);
  font-style: italic;
  color: var(--color-text-tertiary);
  box-shadow: var(--glow-purple);
}

/* Horizontal rule */
hr {
  border: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-primary) 50%, transparent 100%);
  margin: var(--space-8) 0;
  box-shadow: var(--glow-purple);
}

/* ============================================
   UTILITIES
   ============================================ */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: var(--container-2xl);
  }
}

.container-fluid {
  width: 100%;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

/* Flexbox utilities */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-row {
  flex-direction: row;
}

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

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

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

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

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

.items-stretch {
  align-items: stretch;
}

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

.justify-center {
  justify-content: center;
}

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

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

/* Grid utilities */
.grid {
  display: grid;
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Text utilities */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

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

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

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

/* Display utilities */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

/* Position utilities */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Spacing utilities */
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

/* Width utilities */
.w-full { width: 100%; }
.w-auto { width: auto; }
.max-w-full { max-width: 100%; }

/* Screen reader only */
.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;
}

/* Skip to content */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-bg-primary);
  padding: var(--space-3) var(--space-4);
  text-decoration: none;
  z-index: 100;
  border-radius: var(--radius-base);
}

.skip-to-content:focus {
  top: var(--space-4);
  left: var(--space-4);
}

/* Neon glow utilities */
.glow-purple {
  box-shadow: var(--glow-purple);
}

.glow-blue {
  box-shadow: var(--glow-blue);
}

.glow-cyan {
  box-shadow: var(--glow-cyan);
}

.text-glow-purple {
  text-shadow: var(--glow-purple);
}

.text-glow-blue {
  text-shadow: var(--glow-blue);
}

/* ============================================
   COMPONENTS
   ============================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1;
  border-radius: var(--radius-base);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Primary */
.btn-primary {
  background: linear-gradient(135deg, var(--color-neon-purple) 0%, var(--color-neon-purple-glow) 100%);
  color: var(--color-text-primary)!important;
  border-color: var(--color-neon-purple);
  box-shadow: var(--glow-purple), var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus {
  background: linear-gradient(135deg, var(--color-neon-purple-glow) 0%, var(--color-neon-purple) 100%);
  box-shadow: var(--glow-purple-intense), var(--shadow-lg);
  transform: translateY(-2px);
}

/* Button Secondary */
.btn-secondary {
  background: linear-gradient(135deg, var(--color-electric-blue) 0%, var(--color-electric-blue-glow) 100%);
  color: var(--color-text-primary);
  border-color: var(--color-electric-blue);
  box-shadow: var(--glow-blue), var(--shadow-md);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: linear-gradient(135deg, var(--color-electric-blue-glow) 0%, var(--color-electric-blue) 100%);
  box-shadow: var(--glow-blue-intense), var(--shadow-lg);
  transform: translateY(-2px);
}

/* Button Outline */
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: var(--glow-purple);
}

.btn-outline:hover,
.btn-outline:focus {
  background: var(--color-primary);
  color: var(--color-bg-primary);
  box-shadow: var(--glow-purple-intense), var(--shadow-lg);
}

/* Button Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: rgba(178, 75, 243, 0.1);
  color: var(--color-primary);
  border-color: var(--color-border-primary);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* Input fields */
.input,
.textarea,
.select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-tertiary);
  border: 2px solid var(--color-border-subtle);
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
  outline: none;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-muted);
}

.input:hover,
.textarea:hover,
.select:hover {
  border-color: var(--color-border-primary);
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--color-primary);
  box-shadow: var(--glow-purple), 0 0 0 3px rgba(178, 75, 243, 0.1);
  background-color: var(--color-bg-secondary);
}

.input:disabled,
.textarea:disabled,
.select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--color-bg-elevated);
}

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

.select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%23b24bf3' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right var(--space-3) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: var(--space-10);
}

/* Form group */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-helper {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

/* Card */
.card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-neon-purple) 0%, var(--color-electric-blue) 50%, var(--color-vibrant-cyan) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  border-color: var(--color-border-primary);
  box-shadow: var(--glow-purple), var(--shadow-xl);
  transform: translateY(-4px);
}

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

.card-header {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

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

.card-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
}

/* Card variants */
.card-featured {
  background: linear-gradient(135deg, rgba(178, 75, 243, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
  border-color: var(--color-border-primary);
  box-shadow: var(--glow-purple), var(--shadow-xl);
}

.card-featured::before {
  opacity: 1;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-subtle);
}

.badge-primary {
  background-color: rgba(178, 75, 243, 0.2);
  color: var(--color-neon-purple);
  border-color: var(--color-neon-purple);
  box-shadow: var(--glow-purple);
}

.badge-secondary {
  background-color: rgba(14, 165, 233, 0.2);
  color: var(--color-electric-blue);
  border-color: var(--color-electric-blue);
  box-shadow: var(--glow-blue);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--color-success);
  border-color: var(--color-success);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.2);
  color: var(--color-danger);
  border-color: var(--color-danger);
}

/* Alert */
.alert {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-base);
  border: 1px solid;
  margin-bottom: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert-info {
  background-color: rgba(14, 165, 233, 0.1);
  border-color: var(--color-electric-blue);
  color: var(--color-text-secondary);
  box-shadow: var(--glow-blue);
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border-color: var(--color-success);
  color: var(--color-text-secondary);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border-color: var(--color-warning);
  color: var(--color-text-secondary);
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--color-danger);
  color: var(--color-text-secondary);
}

/* Divider */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-border-primary) 50%, transparent 100%);
  margin: var(--space-8) 0;
  border: none;
}

.divider-neon {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-neon-purple) 25%, var(--color-electric-blue) 50%, var(--color-vibrant-cyan) 75%, transparent 100%);
  box-shadow: var(--glow-purple);
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

/* Focus visible styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Ensure focus is visible on interactive elements */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-text-primary: #ffffff;
    --color-bg-primary: #000000;
  }
  
  .card {
    border-width: 2px;
  }
  
  .btn {
    border-width: 3px;
  }
}

/* Dark mode enhancements (already dark by default) */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
  }
}

/* Print styles */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .card {
    border: 1px solid black;
    box-shadow: none;
  }
  
  .btn {
    border: 2px solid black;
  }
  
  a {
    text-decoration: underline;
  }
}