/* ==========================================================================
   GAMBLEJACK.SHOP - CASINO INFORMATION WEBSITE
   Understanding Casino Mathematics and Player Odds
   ========================================================================== */

/* ==========================================================================
   1. ROOT & GLOBAL STYLES
   ========================================================================== */

:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #bf804b;
  --color-background: #f5f5f5;
  --color-text: #1a1a2e;
  --color-white: #ffffff;
  --color-light-gray: #e8e8e8;
  --color-medium-gray: #999999;
  --color-dark-gray: #333333;
  
  --font-heading: "Playfair Display", serif;
  --font-body: "Source Sans Pro", sans-serif;
  
  --shadow-light: 0 2px 8px rgba(26, 26, 46, 0.1);
  --shadow-medium: 0 4px 16px rgba(26, 26, 46, 0.15);
  --shadow-hover: 0 8px 24px rgba(26, 26, 46, 0.2);
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  --transition-default: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   2. TYPOGRAPHY
   ========================================================================== */

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

h1 {
  font-size: 3rem;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 1.75rem;
  letter-spacing: -0.2px;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
  color: var(--color-text);
}

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

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

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

/* ==========================================================================
   3. BUTTONS & LINKS
   ========================================================================== */

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: var(--transition-default);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-light);
}

.btn-primary:hover {
  background-color: #a86d38;
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  text-decoration: none;
}

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

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-light);
}

.btn-secondary:hover {
  background-color: var(--color-secondary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  text-decoration: none;
}

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

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

.btn-outline:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  text-decoration: none;
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: 1.125rem;
}

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

/* ==========================================================================
   4. HEADER & NAVIGATION
   ========================================================================== */

.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-light);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.tagline {
  font-size: 0.75rem;
  color: var(--color-medium-gray);
  font-style: italic;
  margin-top: 2px;
}

.nav {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  align-items: center;
}

.nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 1rem;
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid transparent;
  transition: var(--transition-default);
}

.nav a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* ==========================================================================
   5. HERO SECTION
   ========================================================================== */

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

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(191, 128, 75, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-size: 2.5rem;
}

.hero .casino-icon {
  width: 64px;
  height: 64px;
  display: inline-block;
  vertical-align: middle;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-light-gray);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

/* ==========================================================================
   6. SECTIONS
   ========================================================================== */

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  position: relative;
  display: inline-block;
  padding-bottom: var(--spacing-md);
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary) 100%);
  border-radius: 2px;
}

.section-subtitle {
  color: var(--color-medium-gray);
  font-size: 1.125rem;
  margin-top: var(--spacing-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  margin: var(--spacing-xxl) 0;
}

/* ==========================================================================
   7. CARDS
   ========================================================================== */

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: var(--transition-default);
  border-top: 4px solid var(--color-accent);
  height: 100%;
  display: flex;