/* ========================================
   GameLearn.eu — "Playful Educational" Theme
   ======================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&family=Source+Sans+3:ital,wght@0,300;0,400;0,600;0,700;1,400&display=swap');

/* --- CSS Variables --- */
:root {
  --color-primary: #E8712B;
  --color-primary-dark: #C95D1E;
  --color-primary-light: #F49A5C;
  --color-secondary: #1A6B5C;
  --color-secondary-dark: #13504A;
  --color-secondary-light: #2A8E7A;
  --color-accent: #F5B642;
  --color-accent-dark: #D9991F;
  --color-bg: #FFFBF5;
  --color-bg-alt: #FFF5E8;
  --color-text: #2D2A26;
  --color-text-light: #6B6560;
  --color-text-muted: #9A9590;
  --color-border: #E8E0D8;
  --color-card-bg: #FFFFFF;
  --color-tutorial-bg: #1E2A35;
  --color-tutorial-text: #E8E0D8;
  --color-success: #2E8B57;
  --color-error: #C0392B;
  --font-heading: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;
  --max-width: 1200px;
  --content-width: 800px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.85rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

h3 {
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-secondary-dark);
}

h4 {
  font-size: 1.15rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
}

blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-alt);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}

hr {
  border: none;
  height: 2px;
  background: var(--color-border);
  margin: 2.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-secondary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

th:first-child { border-radius: var(--radius-sm) 0 0 0; }
th:last-child { border-radius: 0 var(--radius-sm) 0 0; }

tr:nth-child(even) {
  background: var(--color-bg-alt);
}

tr:hover {
  background: #FFF0D9;
}

/* --- Header / Navigation --- */
.site-header {
  background: var(--color-card-bg);
  border-bottom: 3px solid var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo a {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo .logo-icon {
  font-size: 1.6rem;
}

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

.nav-menu {
  list-style: none;
  display: flex;
  gap: 0.25rem;
  padding: 0;
  margin: 0;
}

.nav-menu li a {
  display: block;
  padding: 0.5rem 0.85rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  margin-left: 1rem;
  padding-left: 1rem;
  border-left: 1px solid var(--color-border);
}

.lang-switcher a {
  font-size: 1.25rem;
  opacity: 0.5;
  transition: opacity var(--transition);
  text-decoration: none;
  line-height: 1;
}

.lang-switcher a:hover,
.lang-switcher a.active {
  opacity: 1;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
  padding: 0.25rem;
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 2rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-text-light);
}

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

.breadcrumbs span.separator {
  margin: 0 0.4rem;
}

/* --- Main Content --- */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem 3rem;
}

article {
  max-width: var(--content-width);
  margin: 0 auto;
}

article img {
  border-radius: var(--radius);
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.article-meta time {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* --- Cards (for Hub Pages / Game Listings) --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card {
  background: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.card-body {
  padding: 1.25rem;
}

.card-body h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.card-body h3 a {
  color: inherit;
}

.card-body h3 a:hover {
  color: var(--color-primary);
}

.card-body p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 0.75rem;
}

.card-tag {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Quick Info Box (Game Summary) --- */
.quick-info {
  background: var(--color-card-bg);
  border: 2px solid var(--color-border);
  border-left: 5px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.quick-info h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  margin: 0 0 0.75rem;
}

.quick-info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}

.quick-info dt {
  font-weight: 600;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.quick-info dd {
  font-size: 0.95rem;
}

/* --- HowTo Steps --- */
.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding: 1.25rem 1.5rem 1.25rem 4rem;
  margin-bottom: 1rem;
  background: var(--color-card-bg);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1.15rem;
  width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.95rem;
}

.steps li strong {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

/* --- FAQ Section --- */
.faq-section {
  margin: 2.5rem 0;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 1.25rem 2.5rem 1.25rem 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  cursor: pointer;
  position: relative;
  line-height: 1.35;
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.faq-item.open .faq-question::after {
  content: '\2212';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 0 1.25rem;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

/* --- Tutorial Section (Dark Theme) --- */
.tutorial-section {
  background: var(--color-tutorial-bg);
  color: var(--color-tutorial-text);
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2.5rem 0;
  box-shadow: var(--shadow-md);
}

.tutorial-section h2 {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tutorial-section h3 {
  color: var(--color-primary-light);
}

.tutorial-section p {
  color: var(--color-tutorial-text);
}

.tutorial-section .game-state {
  font-family: var(--font-mono);
  background: rgba(0,0,0,0.3);
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin: 1rem 0;
  font-size: 0.9rem;
  line-height: 1.4;
  overflow-x: auto;
}

.tutorial-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.tutorial-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border: 2px solid var(--color-accent);
  background: transparent;
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.tutorial-btn:hover {
  background: var(--color-accent);
  color: var(--color-tutorial-bg);
}

.tutorial-btn.primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.tutorial-btn.primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

/* --- Interactive Game Area (for playable tutorials) --- */
.game-container {
  background: var(--color-tutorial-bg);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}

.game-container canvas {
  display: block;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  max-width: 100%;
}

.game-controls {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* --- Score Tracker --- */
.score-tracker {
  background: var(--color-card-bg);
  border: 2px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}

.score-tracker h3 {
  color: var(--color-secondary);
  margin-top: 0;
}

.score-input {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin: 0.75rem 0;
  flex-wrap: wrap;
}

.score-input input {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.5rem 0.75rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 120px;
  transition: border-color var(--transition);
}

.score-input input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.score-input label {
  font-weight: 600;
  min-width: 80px;
}

.score-display {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  text-align: center;
  padding: 1rem;
}

.score-history {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 0.75rem;
}

/* --- Deck Guide (Interactive Card Explorer) --- */
.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.deck-card {
  aspect-ratio: 2/3;
  background: var(--color-card-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  font-size: 1.5rem;
  padding: 0.25rem;
}

.deck-card:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.deck-card .card-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

.deck-card-info {
  background: var(--color-card-bg);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1rem 0;
  display: none;
}

.deck-card-info.active {
  display: block;
}

/* --- Cross-Country Hub (Comparison) --- */
.comparison-table {
  margin: 2rem 0;
}

.comparison-table th {
  background: var(--color-primary);
}

.comparison-flag {
  font-size: 1.25rem;
  margin-right: 0.3rem;
}

/* --- Buttons / CTAs --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.btn-secondary {
  background: var(--color-secondary);
  color: #fff;
}

.btn-secondary:hover {
  background: var(--color-secondary-dark);
  color: #fff;
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* --- Related Games Section --- */
.related-games {
  margin: 3rem 0 1rem;
  padding: 2rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
}

.related-games h2 {
  margin-top: 0;
  border-bottom-color: var(--color-primary);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-text);
  color: var(--color-border);
  padding: 3rem 2rem 1.5rem;
  margin-top: 4rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-accent);
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--color-border);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-bottom .lang-switcher {
  justify-content: center;
  margin: 1rem 0 0;
  padding: 0;
  border: none;
}

/* --- Homepage Hero --- */
.hero {
  text-align: center;
  padding: 3rem 2rem 2rem;
  max-width: var(--content-width);
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}

.hero h1 span {
  color: var(--color-primary);
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* --- Category Section (Homepage) --- */
.category-section {
  margin: 3rem 0;
}

.category-section > h2 {
  text-align: center;
  display: block;
  border-bottom: none;
  position: relative;
}

.category-section > h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-accent);
  margin: 0.5rem auto 0;
  border-radius: 2px;
}

/* --- Tip / Warning Boxes --- */
.tip-box {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.tip-box.tip {
  background: #E8F5E9;
  border-left: 4px solid var(--color-success);
}

.tip-box.warning {
  background: #FFF3E0;
  border-left: 4px solid var(--color-accent);
}

.tip-box.rule {
  background: #FFEBEE;
  border-left: 4px solid var(--color-error);
}

.tip-box strong {
  display: block;
  margin-bottom: 0.25rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  h1 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .header-inner {
    padding: 0 1rem;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-card-bg);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 3px solid var(--color-primary);
    box-shadow: var(--shadow-md);
  }

  .nav-menu.open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .lang-switcher {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
  }

  main {
    padding: 1rem 1rem 2rem;
  }

  .breadcrumbs {
    padding: 0.5rem 1rem;
  }

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

  .quick-info dl {
    grid-template-columns: 1fr;
  }

  .quick-info dt {
    margin-top: 0.5rem;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .steps li {
    padding-left: 3.5rem;
  }

  .deck-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  }

  .tutorial-section {
    padding: 1.25rem;
    margin: 1.5rem -1rem;
    border-radius: 0;
  }
}

@media (max-width: 480px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .card-grid {
    gap: 1rem;
  }

  .hero {
    padding: 2rem 1rem 1.5rem;
  }

  .score-input {
    flex-direction: column;
    align-items: stretch;
  }

  .score-input input {
    width: 100%;
  }
}

/* --- Print Styles --- */
@media print {
  .site-header, .site-footer, .lang-switcher, .menu-toggle,
  .tutorial-section, .game-container, .faq-question::after {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .faq-answer {
    max-height: none !important;
  }
}