/* ============================================================================
   GAMBLEFIRE.SHOP - CASINO MATHEMATICS & PROBABILITY SCIENCE
   Modern, Professional Casino-Inspired Design
   ============================================================================ */

/* ============================================================================
   1. ROOT VARIABLES & TYPOGRAPHY
   ============================================================================ */

:root {
  /* Color Palette */
  --primary: #1a1a2e;
  --secondary: #0f3460;
  --accent: #ab8e2c;
  --background: #f8f9fa;
  --text: #1a1a2e;
  --text-light: #5a5a6e;
  --border: #e0e0e0;
  --shadow-light: rgba(26, 26, 46, 0.08);
  --shadow-medium: rgba(26, 26, 46, 0.12);
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   2. RESET & BASE STYLES
   ============================================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background-color: var(--background);
  line-height: 1.6;
  font-size: var(--font-size-base);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
}

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

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

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

h4 {
  font-size: var(--font-size-lg);
}

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

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

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

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

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

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

/* ============================================================================
   3. UTILITY CLASSES
   ============================================================================ */

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

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.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;
}

.flex {
  display: flex;
}

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

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

.grid {
  display: grid;
}

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

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

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

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

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

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

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

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

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

.text-white {
  color: #ffffff;
}

.section-title {
  position: relative;
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: var(--radius-md);
}

/* ============================================================================
   4. SVG ICONS
   ============================================================================ */

.casino-icon {
  width: 48px;
  height: 48px;
  display: inline-block;
  vertical-align: middle;
  margin-right: var(--spacing-md);
  color: var(--accent);
}

.hero .casino-icon {
  width: 64px;
  height: 64px;
  margin-right: var(--spacing-lg);
}

svg {
  fill: currentColor;
}

/* ============================================================================
   5. BUTTONS
   ============================================================================ */

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: #9b7d1f;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(171, 142, 44, 0.2);
}

.btn-secondary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-secondary:hover {
  background-color: var(--secondary);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px var(--shadow-medium);
}

.btn-outline {
  background-color: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background-color: var(--accent);
  color: var(--primary);
}

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

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

.btn-block {
  display: block;
  width: 100%;
}

/* ============================================================================
   6. NAVIGATION
   ============================================================================ */

.header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px var(--shadow-light);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  color: var(--primary);
  font-weight: 700;
  display: flex;
  align-items: center;
}

.logo-accent {
  color: var(--accent);
}

.tagline {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  display: block;
  font-family: var(--font-body);
}

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

.nav a {
  color: var(--text);
  font-weight: 500;
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: var(--transition);
}

.nav a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text);
  margin: var(--spacing-xs) 0;
  transition: var(--transition);
}

/* ============================================================================
   7. HERO SECTION
   ============================================================================ */

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #ffffff;
  padding: var(--spacing-3xl) var(--spacing-md);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(171, 142, 44, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: drift 20s linear infinite;
}

@keyframes drift {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

.hero-content {
  position: relative;
  z-