/* ============================================
   VARIABLES
   ============================================ */
:root {
  /* Colors - Luxury Casino Theme */
  --color-bg-primary: #0B1426;        /* Midnight Blue */
  --color-bg-secondary: #0F0F0F;      /* Matte Black */
  --color-bg-tertiary: #1A1D29;       /* Dark Navy */
  --color-text-primary: #F5F5F7;      /* Crystal White */
  --color-text-secondary: #A1A5B7;    /* Soft Silver */
  --color-gold: #C9A961;              /* Metallic Gold */
  --color-gold-light: #E5D4A1;        /* Light Gold */
  --color-gold-dark: #8B734B;         /* Dark Gold */
  --color-red: #DC2626;               /* Casino Red Accent */
  --color-red-dark: #991B1B;          /* Dark Red */
  
  /* Semantic Colors */
  --color-primary: var(--color-gold);
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: var(--color-red);
  --color-neutral-100: #F5F5F7;
  --color-neutral-200: #E5E5E7;
  --color-neutral-300: #D4D4D8;
  --color-neutral-400: #A1A1AA;
  --color-neutral-500: #71717A;
  --color-neutral-600: #52525B;
  --color-neutral-700: #3F3F46;
  --color-neutral-800: #27272A;
  --color-neutral-900: #18181B;
  
  /* Typography */
  --font-heading: 'Playfair Display', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', monospace;
  
  /* Font Sizes - Major Third Scale (1.25) */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  
  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* 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-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;
  
  /* Shadows - Luxury Depth */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  --shadow-gold: 0 0 20px rgba(201, 169, 97, 0.3);
  --shadow-gold-lg: 0 0 40px rgba(201, 169, 97, 0.4);
  
  /* Transitions - Smooth & Cinematic */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 700ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ============================================
   RESET & NORMALIZE
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@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 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

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

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

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

/* ============================================
   BASE STYLES
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

@media (max-width: 768px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }
}

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

a {
  transition: color var(--transition-base), opacity var(--transition-base);
}

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

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

/* ============================================
   UTILITIES
   ============================================ */
.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: 768px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

.flex {
  display: flex;
}

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

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

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

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

.gap-4 {
  gap: var(--space-4);
}

.grid {
  display: grid;
}

.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;
}

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

/* Buttons - Luxury Style */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-bg-secondary)!important;
  border-color: var(--color-gold);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

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

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-gold);
  color: var(--color-bg-secondary);
  box-shadow: var(--shadow-gold);
}

.btn-dark {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-neutral-700);
}

.btn-dark:hover:not(:disabled) {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

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

/* Forms & Inputs */
.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-neutral-700);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.input:hover {
  border-color: var(--color-neutral-600);
}

.input:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Cards - Cinematic Luxury */
.card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-neutral-800);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  position: relative;
  overflow: hidden;
}

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

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-gold);
  border-color: var(--color-neutral-700);
}

.card-glass {
  background-color: rgba(15, 15, 15, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(201, 169, 97, 0.2);
}

/* Utility Accent Text */
.text-gold {
  color: var(--color-gold);
}

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

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

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

/* Focus Visible Global */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background-color: var(--color-gold);
  color: var(--color-bg-secondary);
}