/* ==========================================================================
   ROOT VARIABLES
   ========================================================================== */

:root {
  /* Colors - Casino Resort Theme */
  --color-electric-purple: #9d00ff;
  --color-neon-blue: #00d4ff;
  --color-charcoal: #1a1a1a;
  --color-soft-cyan: #7de6ff;
  --color-vibrant-magenta: #ff0080;
  
  /* Semantic Colors */
  --color-background: #0a0a0a;
  --color-background-elevated: #1a1a1a;
  --color-background-card: #252525;
  --color-text: #ffffff;
  --color-text-secondary: #b8b8b8;
  --color-text-muted: #7a7a7a;
  
  --color-primary: var(--color-electric-purple);
  --color-primary-hover: #b333ff;
  --color-primary-active: #7a00cc;
  
  --color-secondary: var(--color-neon-blue);
  --color-secondary-hover: #33ddff;
  --color-secondary-active: #00a8cc;
  
  --color-accent: var(--color-vibrant-magenta);
  --color-accent-hover: #ff3399;
  --color-accent-active: #cc0066;
  
  --color-success: #00ff88;
  --color-warning: #ffaa00;
  --color-danger: #ff0055;
  
  /* Neutral Grays */
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  
  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-display: 'Montserrat', 'Inter', sans-serif;
  --font-family-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: 2;
  
  /* 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-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 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.6), 0 1px 2px -1px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.7), 0 2px 4px -2px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.8), 0 4px 6px -4px rgba(0, 0, 0, 0.8);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.85), 0 8px 10px -6px rgba(0, 0, 0, 0.85);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.9);
  
  /* Neon Glow Effects */
  --glow-purple: 0 0 10px rgba(157, 0, 255, 0.5), 0 0 20px rgba(157, 0, 255, 0.3), 0 0 30px rgba(157, 0, 255, 0.2);
  --glow-blue: 0 0 10px rgba(0, 212, 255, 0.5), 0 0 20px rgba(0, 212, 255, 0.3), 0 0 30px rgba(0, 212, 255, 0.2);
  --glow-magenta: 0 0 10px rgba(255, 0, 128, 0.5), 0 0 20px rgba(255, 0, 128, 0.3), 0 0 30px rgba(255, 0, 128, 0.2);
  --glow-cyan: 0 0 10px rgba(125, 230, 255, 0.5), 0 0 20px rgba(125, 230, 255, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms;
  --transition-base: 250ms;
  --transition-slow: 350ms;
  --transition-slower: 500ms;
  
  --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-timing-in: cubic-bezier(0.4, 0, 1, 1);
  --transition-timing-out: cubic-bezier(0, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;
}

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

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

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

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

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  line-height: var(--line-height-normal);
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

img {
  border-style: none;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

button,
[role="button"] {
  cursor: pointer;
}

button:disabled,
[disabled] {
  cursor: not-allowed;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

ul,
ol {
  list-style: none;
}

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

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  background-image: 
    radial-gradient(ellipse at top, rgba(157, 0, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-5);
}

h3 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-4);
}

h4 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}

h5 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

h6 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

@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); }
}

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

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

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

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

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

strong,
b {
  font-weight: var(--font-weight-bold);
}

em,
i {
  font-style: italic;
}

small {
  font-size: var(--font-size-sm);
}

code,
kbd,
samp,
pre {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
}

hr {
  border: 0;
  border-top: 1px solid var(--color-gray-800);
  margin: var(--space-8) 0;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

@media (max-width: 640px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

.container-fluid {
  width: 100%;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-narrow {
  max-width: 960px;
}

.container-wide {
  max-width: 1536px;
}

/* 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-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); }

/* 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 (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .grid-cols-4,
  .grid-cols-3,
  .grid-cols-2 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
}

/* Text Utilities */
.text-center {
  text-align: center;
}

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

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

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

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

/* 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;
}

/* Visibility */
.hidden {
  display: none;
}

.invisible {
  visibility: hidden;
}

/* Spacing Utilities */
.m-0 { margin: var(--space-0); }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.p-0 { padding: var(--space-0); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* ==========================================================================
   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-family-display);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base) var(--transition-timing);
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: var(--color-text)!important;
  box-shadow: var(--glow-purple);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-purple), var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-soft-cyan) 100%);
  color: var(--color-charcoal);
  box-shadow: var(--glow-blue);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-blue), var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text);
  box-shadow: var(--glow-purple);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.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);
}

/* Form Elements */
.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);
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-base);
  transition: all var(--transition-base) var(--transition-timing);
  backdrop-filter: blur(10px);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(157, 0, 255, 0.2), var(--glow-purple);
  background-color: rgba(255, 255, 255, 0.08);
}

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

.input:disabled,
.textarea:disabled,
.select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: rgba(255, 255, 255, 0.02);
}

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

.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;
}

/* Cards */
.card {
  background: linear-gradient(135deg, rgba(37, 37, 37, 0.8) 0%, rgba(26, 26, 26, 0.8) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base) var(--transition-timing);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.5;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--glow-purple);
  border-color: rgba(157, 0, 255, 0.3);
}

.card-header {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-title {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.card-body {
  margin-bottom: var(--space-4);
}

.card-body:last-child {
  margin-bottom: 0;
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 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);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background: rgba(157, 0, 255, 0.2);
  color: var(--color-primary);
  border: 1px solid rgba(157, 0, 255, 0.4);
}

.badge-secondary {
  background: rgba(0, 212, 255, 0.2);
  color: var(--color-secondary);
  border-color: rgba(0, 212, 255, 0.4);
}

.badge-success {
  background: rgba(0, 255, 136, 0.2);
  color: var(--color-success);
  border-color: rgba(0, 255, 136, 0.4);
}

/* Divider */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(157, 0, 255, 0.5), transparent);
  margin: var(--space-8) 0;
}

/* Section */
.section {
  padding: var(--space-16) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-12) 0;
  }
}

/* Neon Text Effect */
.text-neon {
  text-shadow: var(--glow-purple);
}

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

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

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

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* Respect user 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;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .card {
    border-width: 2px;
  }
  
  .btn {
    border-width: 2px;
  }
}