/* =================================================================
   PlayNight - CSS Global Style System
   H,: 1.0.0
   \: PlayNight Team
   ��: {ϧQu8Zs�h@7��
   ================================================================= */

/* =================================================================
   1. CSS�ϚI - CSS Variables Definition
   ================================================================= */
:root {
  /* �r�� - Color System */
  --color-primary: #667eea;
  --color-primary-dark: #764ba2;
  --color-primary-light: #8b9aff;
  --color-secondary: #3498db;
  --color-secondary-dark: #2980b9;
  --color-secondary-light: #5dade2;

  /* �or - Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #e9ecef;
  --color-bg-dark: #2c3e50;
  --color-bg-overlay: rgba(0, 0, 0, 0.5);

  /* �W�r - Text Colors */
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-text-tertiary: #888888;
  --color-text-inverse: #ffffff;
  --color-text-muted: #95a5a6;

  /* �
�r - Status Colors */
  --color-success: #27ae60;
  --color-success-light: #2ecc71;
  --color-warning: #f39c12;
  --color-warning-light: #f1c40f;
  --color-error: #e74c3c;
  --color-error-light: #ec7063;
  --color-info: #3498db;
  --color-info-light: #5dade2;

  /* �r - Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  --gradient-hero: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-secondary) 100%);

  /* WS�� - Typography System */
  --font-family-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-secondary: 'Georgia', 'Times New Roman', serif;
  --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  --font-family-game: 'Press Start 2P', 'Courier New', monospace;

  /* WS' - Font Sizes */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  --font-size-6xl: 3.75rem;   /* 60px */

  /* WS�� - Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 900;

  /* L� - Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;

  /* ���� - Spacing System */
  --spacing-xs: 0.25rem;  /* 4px */
  --spacing-sm: 0.5rem;   /* 8px */
  --spacing-md: 1rem;     /* 16px */
  --spacing-lg: 1.5rem;   /* 24px */
  --spacing-xl: 2rem;     /* 32px */
  --spacing-2xl: 3rem;    /* 48px */
  --spacing-3xl: 4rem;    /* 64px */
  --spacing-4xl: 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: 50%;

  /* 4q - Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-button: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-button-hover: 0 4px 12px rgba(0, 0, 0, 0.15);

  /* �F - Borders */
  --border-width-thin: 1px;
  --border-width-medium: 2px;
  --border-width-thick: 4px;
  --border-color-light: #e1e8ed;
  --border-color-medium: #ccd6dd;
  --border-color-dark: #aab8c2;

  /* Z-indexB� - Z-index Stack */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;

  /* �!�; - Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* �� - Breakpoints ((��S����) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* �r;��� - Dark Theme Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-primary: #1a1a1a;
    --color-bg-secondary: #2d2d2d;
    --color-bg-tertiary: #3d3d3d;
    --color-text-primary: #ffffff;
    --color-text-secondary: #e0e0e0;
    --color-text-tertiary: #b0b0b0;
    --border-color-light: #4a4a4a;
    --border-color-medium: #5a5a5a;
    --border-color-dark: #6a6a6a;
  }
}

/* =================================================================
   2. �@�n7 - Base Reset Styles
   ================================================================= */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: var(--line-height-normal);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* �@C 7 - Base Element Styles */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

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

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  max-width: 65ch; /* ����' */
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  border-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  margin: 0;
}

button, [type="button"], [type="reset"], [type="submit"] {
  -webkit-appearance: button;
  cursor: pointer;
  background: none;
  border: none;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* =================================================================
   3. (�w{ - Utility Classes
   ================================================================= */

/* >:/�� - Display */
.u-hidden { display: none !important; }
.u-block { display: block !important; }
.u-inline-block { display: inline-block !important; }
.u-flex { display: flex !important; }
.u-inline-flex { display: inline-flex !important; }
.u-grid { display: grid !important; }
.u-hidden-visually {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* �,�P - Text Alignment */
.u-text-left { text-align: left !important; }
.u-text-center { text-align: center !important; }
.u-text-right { text-align: right !important; }
.u-text-justify { text-align: justify !important; }

/* �,�r - Text Colors */
.u-text-primary { color: var(--color-primary) !important; }
.u-text-secondary { color: var(--color-secondary) !important; }
.u-text-success { color: var(--color-success) !important; }
.u-text-warning { color: var(--color-warning) !important; }
.u-text-error { color: var(--color-error) !important; }
.u-text-muted { color: var(--color-text-muted) !important; }

/* WS' - Font Sizes */
.u-text-xs { font-size: var(--font-size-xs) !important; }
.u-text-sm { font-size: var(--font-size-sm) !important; }
.u-text-base { font-size: var(--font-size-base) !important; }
.u-text-lg { font-size: var(--font-size-lg) !important; }
.u-text-xl { font-size: var(--font-size-xl) !important; }
.u-text-2xl { font-size: var(--font-size-2xl) !important; }
.u-text-3xl { font-size: var(--font-size-3xl) !important; }

/* WS�� - Font Weights */
.u-font-light { font-weight: var(--font-weight-light) !important; }
.u-font-normal { font-weight: var(--font-weight-normal) !important; }
.u-font-medium { font-weight: var(--font-weight-medium) !important; }
.u-font-semibold { font-weight: var(--font-weight-semibold) !important; }
.u-font-bold { font-weight: var(--font-weight-bold) !important; }

/* �� - Spacing */
.u-m-0 { margin: 0 !important; }
.u-m-auto { margin: auto !important; }
.u-m-xs { margin: var(--spacing-xs) !important; }
.u-m-sm { margin: var(--spacing-sm) !important; }
.u-m-md { margin: var(--spacing-md) !important; }
.u-m-lg { margin: var(--spacing-lg) !important; }
.u-m-xl { margin: var(--spacing-xl) !important; }

.u-mt-0 { margin-top: 0 !important; }
.u-mt-xs { margin-top: var(--spacing-xs) !important; }
.u-mt-sm { margin-top: var(--spacing-sm) !important; }
.u-mt-md { margin-top: var(--spacing-md) !important; }
.u-mt-lg { margin-top: var(--spacing-lg) !important; }
.u-mt-xl { margin-top: var(--spacing-xl) !important; }

.u-mb-0 { margin-bottom: 0 !important; }
.u-mb-xs { margin-bottom: var(--spacing-xs) !important; }
.u-mb-sm { margin-bottom: var(--spacing-sm) !important; }
.u-mb-md { margin-bottom: var(--spacing-md) !important; }
.u-mb-lg { margin-bottom: var(--spacing-lg) !important; }
.u-mb-xl { margin-bottom: var(--spacing-xl) !important; }

.u-p-0 { padding: 0 !important; }
.u-p-xs { padding: var(--spacing-xs) !important; }
.u-p-sm { padding: var(--spacing-sm) !important; }
.u-p-md { padding: var(--spacing-md) !important; }
.u-p-lg { padding: var(--spacing-lg) !important; }
.u-p-xl { padding: var(--spacing-xl) !important; }

/* � - Border Radius */
.u-rounded-none { border-radius: 0 !important; }
.u-rounded-sm { border-radius: var(--radius-sm) !important; }
.u-rounded-md { border-radius: var(--radius-md) !important; }
.u-rounded-lg { border-radius: var(--radius-lg) !important; }
.u-rounded-xl { border-radius: var(--radius-xl) !important; }
.u-rounded-full { border-radius: var(--radius-full) !important; }

/* 4q - Shadows */
.u-shadow-none { box-shadow: none !important; }
.u-shadow-sm { box-shadow: var(--shadow-sm) !important; }
.u-shadow-md { box-shadow: var(--shadow-md) !important; }
.u-shadow-lg { box-shadow: var(--shadow-lg) !important; }
.u-shadow-xl { box-shadow: var(--shadow-xl) !important; }
.u-shadow-card { box-shadow: var(--shadow-card) !important; }

/* =================================================================
   4. @���� - Layout Component System
   ================================================================= */

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

@media (min-width: 640px) {
  .container { padding: 0 var(--spacing-lg); }
}

@media (min-width: 1024px) {
  .container { padding: 0 var(--spacing-xl); }
}

/* Q<�� - Grid System */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

/* ͔Q< */
@media (max-width: 639px) {
  .grid-responsive { grid-template-columns: 1fr; }
}

@media (min-width: 640px) and (max-width: 767px) {
  .grid-responsive { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid-responsive { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .grid-responsive { grid-template-columns: repeat(4, 1fr); }
}

/* Flexbox �w{ */
.flex { display: flex; }
.inline-flex { display: inline-flex; }

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

.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }

/* =================================================================
   5. ��7�� - Component Style System
   ================================================================= */

/* 	��� - Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border: var(--border-width-thin) solid transparent;
  user-select: none;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* 	��S - Button Variants */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-button);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-button);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* 	�:� - Button Sizes */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

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

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

/* �	� - Icon Button */
.btn-icon {
  padding: var(--spacing-sm);
  aspect-ratio: 1;
  min-width: auto;
}

.btn-icon .icon {
  font-size: 1.25em;
}

/* aG�� - Card Component */
.card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition-normal);
  border: var(--border-width-thin) solid var(--border-color-light);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: var(--border-width-thin) solid var(--border-color-light);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: var(--border-width-thin) solid var(--border-color-light);
  background: var(--color-bg-secondary);
}

/* 8aG - Game Card */
.game-card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  border: var(--border-width-thin) solid var(--border-color-light);
  cursor: pointer;
  position: relative;
}

.game-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.game-card__thumbnail {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--color-bg-tertiary);
}

.game-card__content {
  padding: var(--spacing-md);
}

.game-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  line-height: var(--line-height-tight);
}

.game-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.game-card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* �}�
 - Loading States */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-bg-tertiary);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

.loading-spinner.large {
  width: 60px;
  height: 60px;
  border-width: 4px;
}

.loading-spinner.small {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* �}OU - Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-screen .loading-spinner {
  margin-bottom: var(--spacing-lg);
}

.loading-screen p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

/* ۦa - Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* =================================================================
   6. ub��7 - Page Component Styles
   ================================================================= */

/* Header */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-width-thin) solid var(--border-color-light);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition-normal);
}

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

.logo h1 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0;
}

.logo-text {
  color: var(--color-primary);
}

.logo-night {
  color: var(--color-primary-dark);
}

.tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  margin-bottom: 0;
}

/* Navigation */
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-bg-secondary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

/* Hero Section */
.hero {
  padding: var(--spacing-4xl) 0;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-black);
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-tight);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
  line-height: var(--line-height-relaxed);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-text-inverse);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
  text-decoration: none;
  color: var(--color-primary-dark);
}

/* Game Preview */
.game-preview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  perspective: 1000px;
}

.preview-card {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: var(--color-text-inverse);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  flex-direction: column;
}

.preview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.preview-card:hover::before {
  transform: translateX(100%);
}

.preview-2048 {
  background: linear-gradient(135deg, #faf8ef, #bbada0);
  color: #776e65;
}

.preview-flappy {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.preview-snake {
  background: linear-gradient(135deg, #27ae60, #229954);
}

.preview-card:nth-child(4) {
  grid-column: span 2;
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.preview-card:hover {
  transform: rotateY(10deg) rotateX(-10deg) scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* Hero Preview Card Images */
.preview-thumbnail {
  width: 90%;
  height: 60%;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-bg-tertiary);
  margin: var(--spacing-sm) auto 0;
}

.preview-info {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
}

.preview-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
  font-weight: var(--font-weight-normal);
}

.preview-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.preview-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.preview-card:hover .preview-overlay {
  opacity: 1;
}

.preview-card:hover .preview-thumbnail img {
  transform: scale(1.1);
}

.play-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  font-size: 18px;
  box-shadow: var(--shadow-button);
}

.preview-label {
  background: var(--color-warning);
  color: var(--color-text-inverse);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.preview-title {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  margin-bottom: var(--spacing-xs);
  text-align: center;
}

/* 针对2048卡片的特殊颜色 */
.preview-2048 .preview-title {
  color: #776e65;
  text-shadow: none;
}

.preview-2048 .preview-desc {
  color: #8f7a66;
}

/* 预览卡片作为链接时移除下划线 */
.preview-card[href] {
  text-decoration: none;
  color: inherit;
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Games Grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

/* Load More Button */
.load-more-container {
  text-align: center;
  margin-top: var(--spacing-3xl);
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-button);
}

.load-more-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.arrow-icon {
  transition: transform var(--transition-fast);
}

.load-more-btn:hover .arrow-icon {
  transform: translateX(4px);
}

/* Features Section */
.features {
  padding: var(--spacing-4xl) 0;
  background: var(--color-bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  border: var(--border-width-thin) solid var(--border-color-light);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-md);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* About Section */
.about {
  padding: var(--spacing-4xl) 0;
}

.about-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.about-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
}

.about-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-3xl);
}

/* Stats */
.about-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3xl);
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
  min-width: 120px;
}

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-black);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Footer */
.footer {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3,
.footer-section h4 {
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.footer-title {
  font-size: var(--font-size-xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-description {
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--line-height-relaxed);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-inverse);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

/* =================================================================
   7. 8uby�7 - Game Page Specific Styles
   ================================================================= */

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-primary-dark);
}

.separator {
  color: var(--color-text-muted);
}

.current {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* Game Header */
.game-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-xl);
  align-items: start;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: var(--border-width-thin) solid var(--border-color-light);
}

.game-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-tight);
}

.game-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.game-meta {
  display: flex;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.meta-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-medium);
}

.meta-value {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
}

.status-loading {
  color: var(--color-warning);
}

.status-ready {
  color: var(--color-success);
}

.status-error {
  color: var(--color-error);
}

/* Game Actions */
.game-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* Ad Spaces */
.ad-space {
  margin: var(--spacing-xl) 0;
  text-align: center;
}

.ad-placeholder {
  background: var(--color-bg-tertiary);
  border: 2px dashed var(--border-color-medium);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Game Container */
.game-container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.game-frame-wrapper {
  position: relative;
  background: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.game-frame {
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
  display: block;
  background: transparent;
}

/* 2048 Game Frame Fix - 最终解决方案 */
.game-frame.game-2048 {
  width: 100% !important;
  height: 100% !important;
  min-height: 650px !important;    /* 2048游戏需要的最小高度 */
  max-width: none !important;      /* 完全移除宽度限制 */
  max-height: none !important;     /* 完全移除高度限制 */
  aspect-ratio: unset !important;  /* 移除宽高比限制 */
  background: #faf8ef;
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  object-fit: contain;             /* 确保内容适应容器 */
}

/* 2048游戏容器调整 - 充分利用可用空间 */
.game-frame-wrapper:has(.game-frame.game-2048) {
  width: 100% !important;
  height: 100% !important;
  min-height: 700px !important;    /* 为游戏内容提供充足空间 */
  max-height: none !important;     /* 移除高度限制 */
  display: flex;
  align-items: flex-start;         /* 顶部对齐，避免居中裁剪 */
  justify-content: center;
  overflow: hidden;                /* 防止内容溢出 */
}

/* 最大化游戏区域空间分配 */
.game-container:has(.game-frame.game-2048) {
  grid-template-columns: 3fr 300px !important; /* 给游戏区域更大的比例 */
  gap: var(--spacing-xl);
  align-items: stretch;             /* 让游戏区域充满高度 */
}

.game-container:has(.game-frame.game-2048) .game-sidebar {
  order: 2;
  margin-top: 0;
}

/* 隐藏2048游戏的滚动条 */
.game-frame.game-2048::-webkit-scrollbar {
  display: none !important;         /* Chrome/Safari隐藏滚动条 */
}

.game-frame.game-2048 {
  scrollbar-width: none !important; /* Firefox隐藏滚动条 */
  -ms-overflow-style: none !important; /* IE/Edge隐藏滚动条 */
  overflow: hidden !important;      /* 确保内容不产生滚动条 */
}

/* 确保2048游戏内容在iframe中正确缩放 */
.game-frame.game-2048 {
  transform-origin: top left;       /* 缩放时保持左上角对齐 */
}

/* 为2048游戏iframe添加特殊处理类 */
.game-frame.game-2048.loaded {
  min-height: 650px !important;     /* 加载完成后确保最小高度 */
}

/* 针对2048游戏内容的强制缩放 */
@supports (zoom: 1) {
  .game-frame.game-2048 {
    zoom: 0.95;                     /* 轻微缩小以确保内容完全适应 */
  }
}

/* 当iframe检测到2048游戏时，动态调整容器 */
.game-frame[data-game-id="2048"] {
  width: 100% !important;
  height: 100% !important;
  min-height: 650px !important;
  max-width: none !important;
  max-height: none !important;
  aspect-ratio: unset !important;
  object-fit: contain;
  overflow: hidden;
}

/* Game Loading */
.game-loading {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  z-index: 10;
}

.game-loading .loading-spinner {
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.loading-progress {
  width: 200px;
  text-align: center;
}

.loading-progress .progress-bar {
  margin-bottom: var(--spacing-sm);
}

/* Game Error */
.game-error {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-inverse);
  text-align: center;
  z-index: 10;
  padding: var(--spacing-xl);
}

.error-icon {
  font-size: var(--font-size-6xl);
  margin-bottom: var(--spacing-lg);
  opacity: 0.7;
}

.error-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* Game Sidebar */
.game-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

/* Game Instructions */
.game-instructions,
.game-stats,
.share-game {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  border: var(--border-width-thin) solid var(--border-color-light);
}

.game-instructions h3,
.game-stats h3,
.share-game h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.instructions-content p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: 0;
}

/* Game Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

/* Share Buttons */
.share-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

.share-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-secondary);
  border: var(--border-width-thin) solid var(--border-color-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.share-btn:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Related Games */
.related-games {
  margin-top: var(--spacing-3xl);
}

.related-games .section-title {
  font-size: var(--font-size-3xl);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

/* =================================================================
   8. �;��!H� - Animations and Transitions
   ================================================================= */

/* h@�; - Global Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* �;�w{ - Animation Utilities */
.animate-fade-in { animation: fadeIn 0.5s ease-out; }
.animate-slide-in-up { animation: slideInUp 0.6s ease-out; }
.animate-slide-in-down { animation: slideInDown 0.6s ease-out; }
.animate-slide-in-left { animation: slideInLeft 0.6s ease-out; }
.animate-slide-in-right { animation: slideInRight 0.6s ease-out; }
.animate-bounce { animation: bounce 1s ease-in-out; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-shake { animation: shake 0.5s ease-in-out; }

/* �ߨ; - Animation Delays */
.animate-delay-100 { animation-delay: 100ms; }
.animate-delay-200 { animation-delay: 200ms; }
.animate-delay-300 { animation-delay: 300ms; }
.animate-delay-500 { animation-delay: 500ms; }
.animate-delay-700 { animation-delay: 700ms; }
.animate-delay-1000 { animation-delay: 1000ms; }

/* �\H� - Hover Effects */
.hover-lift {
  transition: transform var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-8px);
}

.hover-scale {
  transition: transform var(--transition-normal);
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-glow {
  transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
}

/* ڨ�; - Scroll Animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =================================================================
   9. ͔���w - Responsive Design Utilities
   ================================================================= */

/* ��'�6 - Visibility Control */
.visible-sm { display: none !important; }
.visible-md { display: none !important; }
.visible-lg { display: none !important; }

.hidden-sm { display: block !important; }
.hidden-md { display: block !important; }
.hidden-lg { display: block !important; }

/* OU - Small Screens (640px and below) */
@media (max-width: 639px) {
  .visible-sm { display: block !important; }
  .hidden-sm { display: none !important; }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .game-preview {
    grid-template-columns: repeat(2, 1fr);
  }

  .preview-card:nth-child(4) {
    grid-column: span 2;
  }

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

  .game-container {
    grid-template-columns: 1fr;
  }

  .game-sidebar {
    order: -1;
  }

  .game-header {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

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

/* -IOU - Medium Screens (640px to 1023px) */
@media (min-width: 640px) and (max-width: 1023px) {
  .visible-md { display: block !important; }
  .hidden-md { display: none !important; }

  .hero-content {
    grid-template-columns: 1fr 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 'OU - Large Screens (1024px and above) */
@media (min-width: 1024px) {
  .visible-lg { display: block !important; }
  .hidden-lg { display: none !important; }

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

/* �'OU - Extra Large Screens (1280px and above) */
@media (min-width: 1280px) {
  .container {
    max-width: 1400px;
  }
}

/* =================================================================
   10. Sp7 - Print Styles
   ================================================================= */
@media print {
  /* ��
�Sp�C  */
  .header,
  .nav,
  .hero,
  .loading-screen,
  .game-frame,
  .game-sidebar,
  .ad-space,
  .share-game,
  .footer,
  .btn,
  .load-more-container,
  .breadcrumb {
    display: none !important;
  }

  /* �W7 */
  body {
    font-size: 12pt;
    line-height: 1.4;
    color: #000;
    background: #fff;
  }

  h1, h2, h3, h4, h5, h6 {
    color: #000;
    page-break-after: avoid;
  }

  h1 { font-size: 18pt; }
  h2 { font-size: 16pt; }
  h3 { font-size: 14pt; }

  p {
    widows: 3;
    orphans: 3;
  }

  /* �d4q��o */
  * {
    box-shadow: none !important;
    background: transparent !important;
    text-shadow: none !important;
  }

  /* n����� */
  a:link,
  a:visited {
    color: #000;
    text-decoration: underline;
  }

  /* u�6 */
  .game-card,
  .feature-card,
  .section-header {
    page-break-inside: avoid;
  }

  /* ��u
 */
  @page {
    margin: 2cm;
  }
}

/* =================================================================
   11. ��'�;� - Accessibility and Theme
   ================================================================= */

/* ��Ԧ! - High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #0000ff;
    --color-text-primary: #000000;
    --color-bg-primary: #ffffff;
    --border-color-light: #000000;
  }

  .btn {
    border-width: 2px;
  }
}

/* ��;! - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* &�7�: - Enhanced Focus Styles */
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* �fJ�
 - Error and Warning States */
.is-error {
  color: var(--color-error);
  border-color: var(--color-error);
}

.is-success {
  color: var(--color-success);
  border-color: var(--color-success);
}

.is-warning {
  color: var(--color-warning);
  border-color: var(--color-warning);
}

/* =================================================================
   12. '� - Performance Optimization
   ================================================================= */

/* GPU� - GPU Acceleration */
.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* ����' - Content Visibility */
.content-auto {
  content-visibility: auto;
  contain-intrinsic-size: 0 500px;
}

/* 2� - Rendering Optimization */
.will-change-transform {
  will-change: transform;
}

.will-change-opacity {
  will-change: opacity;
}

/* =================================================================
   13.  Game Card Component Styles
   ================================================================= */

/* Game Thumbnail & Overlay */
.game-thumbnail {
  width: 100%;
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.game-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.game-card:hover .game-thumbnail img {
  transform: scale(1.05);
}

.game-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.game-card:hover .game-overlay {
  opacity: 1;
}

.play-btn {
  background: var(--gradient-primary);
  color: var(--color-text-inverse);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-button);
}

.play-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.game-info {
  padding: var(--spacing-md);
}

.game-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.favorite-btn {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: var(--radius-full);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  z-index: 2;
}

.favorite-btn:hover {
  background: rgba(255, 255, 255, 1);
  transform: scale(1.1);
}

.favorite-btn.active {
  background: var(--color-error);
  color: var(--color-text-inverse);
}

/* 难度和类别标签 */
.difficulty {
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.difficulty.easy {
  background: var(--color-success-light);
  color: var(--color-success);
}

.difficulty.medium {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.difficulty.hard {
  background: var(--color-error-light);
  color: var(--color-error);
}

.category {
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
}

.plays {
  color: var(--color-text-muted);
}

/* =================================================================
   14.  2048 Game Specific Fixes
   ================================================================= */

/* 2048 Game styles moved to main fix section above */

/* =================================================================
   �_� - End of Stylesheet
   ================================================================= */