/* ========================================
   CHIPGEM.SHOP - CASINO HISTORY WEBSITE
   Complete Responsive CSS Stylesheet
   ======================================== */

/* ========================================
   FONT IMPORTS (System Fonts + Web Safe)
   ======================================== */
@font-face {
  font-family: 'Playfair Display';
  src: url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700;800&display=swap');
  font-weight: 400;
}

@font-face {
  font-family: 'Open Sans';
  src: url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&display=swap');
  font-weight: 400;
}

/* ========================================
   ROOT & GLOBAL STYLES
   ======================================== */
:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #a98b2c;
  --color-background: #f5f5f5;
  --color-text: #1a1a2e;
  --color-text-light: #555555;
  --color-border: #e0e0e0;
  --color-white: #ffffff;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-shadow-hover: rgba(0, 0, 0, 0.15);
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Open Sans', sans-serif;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --transition: all 0.3s ease;
  --border-radius: 8px;
  --border-radius-lg: 12px;
}

* {
  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;
}

/* ========================================
   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: clamp(32px, 8vw, 64px);
  letter-spacing: -1px;
}

h2 {
  font-size: clamp(28px, 6vw, 48px);
  letter-spacing: -0.5px;
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: clamp(24px, 5vw, 36px);
  margin-bottom: var(--spacing-md);
}

h4 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

h5 {
  font-size: 18px;
  margin-bottom: var(--spacing-sm);
}

h6 {
  font-size: 16px;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
  line-height: 1.8;
}

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

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

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

/* ========================================
   IMAGES
   ======================================== */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  gap: var(--spacing-sm);
}

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

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(169, 139, 44, 0.25);
}

.btn-primary:hover {
  background-color: #9a7a1f;
  box-shadow: 0 6px 16px rgba(169, 139, 44, 0.35);
  transform: translateY(-2px);
}

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

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(26, 26, 46, 0.25);
}

.btn-secondary:hover {
  background-color: var(--color-secondary);
  box-shadow: 0 6px 16px rgba(26, 26, 46, 0.35);
  transform: translateY(-2px);
}

.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);
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 14px;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 18px;
}

/* ========================================
   ICONS
   ======================================== */
.casino-icon {
  width: 48px;
  height: 48px;
  display: inline-block;
  vertical-align: middle;
  margin-right: var(--spacing-md);
  fill: currentColor;
}

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

.card .casino-icon {
  width: 40px;
  height: 40px;
  margin-right: var(--spacing-md);
  color: var(--color-accent);
}

/* ========================================
   CONTAINERS & GRIDS
   ======================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.grid-2 {
  grid-template-columns: 1fr 1fr;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px var(--color-shadow);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
}

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

.tagline {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--color-text-light);
  font-weight: 400;
  letter-spacing: 1px;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--spacing-md) 0;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
}

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

.nav-link.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

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

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 4px 0;
  transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) var(--spacing-md);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(169, 139, 44, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: