/* ============================================================
   foxpox.games — Main Website Styles
   ============================================================
   Mobile-first responsive layout with WCAG 2.1 AA compliance.
   Color scheme: dark/gaming-themed.
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors — dark gaming theme, WCAG AA compliant */
  --color-bg: #121218;
  --color-surface: #1e1e2a;
  --color-surface-hover: #2a2a3a;
  --color-primary: #7c6ff7;
  --color-primary-light: #a89cfc;
  --color-text: #e8e6f0;          /* contrast ~13:1 on --color-bg */
  --color-text-muted: #a09cb0;    /* contrast ~5.5:1 on --color-bg */
  --color-border: #33334a;
  --color-focus: #7c6ff7;
  --color-error: #f87171;

  /* Typography */
  --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.75rem;
  --line-height: 1.6;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Layout */
  --max-width: 1200px;
  --card-radius: 0.75rem;
  --header-height: 4rem;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* --- Skip Link (keyboard navigation / accessibility) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--card-radius);
  z-index: 1000;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-md);
}

/* --- Focus Styles (keyboard navigation, WCAG 2.1 AA) --- */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* --- Header --- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--header-height);
}

.site-logo {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
}

.site-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

/* --- Main Content --- */
main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  width: 100%;
}

/* --- Game Grid — Responsive --- */
.game-grid {
  display: grid;
  gap: var(--space-lg);
  /* Mobile: 1 column (default) */
  grid-template-columns: 1fr;
}

/* Tablet: 2 columns */
@media (min-width: 640px) {
  .game-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop: 3 columns */
@media (min-width: 1024px) {
  .game-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Large desktop: 4 columns */
@media (min-width: 1400px) {
  .game-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Game Card --- */
.game-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  border-color: var(--color-primary);
}

.game-card:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

/* --- Game Card Thumbnail --- */
.game-card-thumbnail {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-border);
}

/* --- Game Card Body --- */
.game-card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-md) var(--space-md) var(--space-xs);
}

.game-card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: 0 var(--space-md) var(--space-md);
  flex: 1;
  /* Clamp to 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--color-text-muted);
}

.empty-state p {
  font-size: var(--font-size-lg);
}

/* --- Error State --- */
.error-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--color-text);
}

.error-state p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
  color: var(--color-error);
}

.retry-button {
  display: inline-block;
  padding: var(--space-sm) var(--space-xl);
  background-color: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--card-radius);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.retry-button:hover {
  background-color: var(--color-primary-light);
}

.retry-button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* --- Loading State --- */
.loading-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
}

/* --- Screen-reader only (visually hidden, accessible) --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Ad Container --- */
.ad-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg) 0;
}

.ad-banner {
  min-height: 90px;
}