/* ============================================================================
   SPARKCASE.SHOP - CASINO CULTURE & ETIQUETTE EDUCATIONAL WEBSITE
   Modern, Professional, Responsive CSS Stylesheet
   ============================================================================ */

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

:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #ab8e2c;
  --color-background: #f8f9fa;
  --color-text: #2c3e50;
  --color-light-text: #5a6c7d;
  --color-border: #e0e6ed;
  --color-white: #ffffff;
  --color-shadow: rgba(26, 26, 46, 0.08);
  --color-shadow-dark: rgba(26, 26, 46, 0.15);
  
  --font-heading: "Playfair Display", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  
  --shadow-sm: 0 2px 4px var(--color-shadow);
  --shadow-md: 0 4px 12px var(--color-shadow);
  --shadow-lg: 0 8px 24px var(--color-shadow-dark);
  --shadow-hover: 0 12px 32px var(--color-shadow-dark);
}

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

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

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

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

a:hover {
  color: #9a7a1f;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-sm {
  max-width: 800px;
}

.section-divider {
  height: 2px;
  background: linear-gradient(to right, var(--color-primary), var(--color-accent), var(--color-primary));
  margin: var(--spacing-xxl) 0;
  opacity: 0.3;
}

.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;
}

/* SVG Icon Styles */

.casino-icon {
  width: 48px;
  height: 48px;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
  fill: currentColor;
  color: var(--color-accent);
}

.hero .casino-icon {
  width: 64px;
  height: 64px;
  margin-right: 12px;
}

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

.header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

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

.nav {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav a {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.nav a:hover {
  border-bottom-color: var(--color-accent);
  color: var(--color-accent);
}

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

/* ============================================================================
   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;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(171, 142, 44, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(171, 142, 44, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
  font-weight: 500;
}

.hero-tagline {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-icon-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.hero .casino-icon {
  color: var(--color-accent);
}

/* ============================================================================
   6. BUTTONS & CALL-TO-ACTION
   ============================================================================ */

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid var(--color-accent);
  background-color: transparent;
  color: var(--color-accent);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.btn:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(171, 142, 44, 0.3);
}

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

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

.btn-primary:hover {
  background-color: #9a7a1f;
  border-color: #9a7a1f;
  box-shadow: 0 8px 16px rgba(171, 142, 44, 0.4);
}

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.1rem;
}

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

/* ============================================================================
   7. CARDS & CONTENT BLOCKS
   ============================================================================ */

.card {
  background-color: var(--color-white);
  border