/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Light theme variables */
  --bg-color: #f5f5f5;
  --text-color: #333;
  --header-color: #2c3e50;
  --table-bg: white;
  --table-header-bg: #34495e;
  --table-border: #e8e8e8;
  --table-even-row: #f8f9fa;
  --table-hover: #e3f2fd;
  --button-bg: #3498db;
  --button-hover: #2980b9;
  --button-disabled: #bdc3c7;
  --game-link-bg: #ecf0f1;
  --game-link-hover: #d5dbdb;
  --game-link-selected: #3498db;
  --quiz-instruction-color: black;
  --table-shadow: rgba(0, 0, 0, 0.1);
  --card-shadow: rgba(0, 0, 0, 0.1);
  --border-color: #e8e8e8;
}

body.dark-mode {
  /* Dark theme variables - using body selector for higher specificity */
  --bg-color: #1a1a1a;
  --text-color: #e0e0e0;
  --header-color: #4a9eff;
  --table-bg: #2d2d2d;
  --table-header-bg: #404040;
  --table-border: #444;
  --table-even-row: #333;
  --table-hover: #404040;
  --button-bg: #4a9eff;
  --button-hover: #357abd;
  --button-disabled: #666;
  --game-link-bg: #3a3a3a;
  --game-link-hover: #4a4a4a;
  --game-link-selected: #4a9eff;
  --quiz-instruction-color: white;
  --table-shadow: rgba(0, 0, 0, 0.3);
  --card-shadow: rgba(0, 0, 0, 0.2);
  --border-color: #444;
}

body.light-mode {
  /* Light theme variables - explicitly override system dark preference */
  --bg-color: #f5f5f5;
  --text-color: #333;
  --header-color: #2c3e50;
  --table-bg: white;
  --table-header-bg: #34495e;
  --table-border: #e8e8e8;
  --table-even-row: #f8f9fa;
  --table-hover: #e3f2fd;
  --button-bg: #3498db;
  --button-hover: #2980b9;
  --button-disabled: #bdc3c7;
  --game-link-bg: #ecf0f1;
  --game-link-hover: #d5dbdb;
  --game-link-selected: #3498db;
  --quiz-instruction-color: black;
  --table-shadow: rgba(0, 0, 0, 0.1);
  --card-shadow: rgba(0, 0, 0, 0.1);
  --border-color: #e8e8e8;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Apply dark mode by default if system prefers dark */
@media (prefers-color-scheme: dark) {
  :root {
    /* Dark theme variables */
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --header-color: #4a9eff;
    --table-bg: #2d2d2d;
    --table-header-bg: #404040;
    --table-border: #444;
    --table-even-row: #333;
    --table-hover: #404040;
    --button-bg: #4a9eff;
    --button-hover: #357abd;
    --button-disabled: #666;
    --game-link-bg: #3a3a3a;
    --game-link-hover: #4a4a4a;
    --game-link-selected: #4a9eff;
    --quiz-instruction-color: white;
    --table-shadow: rgba(0, 0, 0, 0.3);
    --card-shadow: rgba(0, 0, 0, 0.2);
    --border-color: #444;
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Header styles */
header {
  text-align: center;
  margin-bottom: 30px;
}

h1 {
  font-size: 2.5rem;
  color: var(--header-color);
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

/* Navigation styles */
nav {
  margin-top: 15px;
}

.nav-button {
  display: inline-block;
  padding: 8px 16px;
  background-color: var(--button-bg);
  color: white;
  text-decoration: none;
  border: none;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.nav-button:hover:not(:disabled) {
  background-color: var(--button-hover);
}

.nav-button:active:not(:disabled) {
  transform: translateY(1px);
}

.nav-button:disabled {
  background-color: var(--button-disabled);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Recent games header styles */
.recent-games-header {
  text-align: center;
  margin-top: 20px;
  margin-bottom: 20px;
}

.recent-games-header h3 {
  font-size: 1.2rem;
  color: var(--header-color);
  margin-bottom: 15px;
  font-weight: 600;
  transition: color 0.3s ease;
}

.recent-games-header ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 10px;
  max-width: 800px;
  margin: 0 auto;
}

.recent-games-header li {
  margin: 0;
}

.game-nav-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-top: 10px;
  flex-wrap: wrap;
}

/* Game controls styles */
.game-controls {
  text-align: center;
  margin: 20px 0;
}

.game-controls .nav-button {
  margin: 0 5px;
}

/* Game info styles */
.game-info {
  text-align: center;
  margin-bottom: 20px;
}

.game-info h2 {
  color: var(--header-color);
  font-size: 1.8rem;
  margin-bottom: 5px;
  transition: color 0.3s ease;
}

.game-stats {
  color: #7f8c8d;
  font-size: 0.95rem;
  font-style: italic;
}

/* Quiz instruction styles */
.quiz-instruction {
  text-align: center;
  margin: 5px 0 15px 0;
  color: var(--quiz-instruction-color);
  font-size: 0.9rem;
  font-style: italic;
  transition: color 0.3s ease;
}

/* Table styles */
.facts-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--table-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px var(--table-shadow);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.facts-table thead {
  background-color: var(--table-header-bg);
  color: white;
  transition: background-color 0.3s ease;
}

.facts-table th {
  padding: 15px 12px;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
}

.facts-table td {
  padding: 12px;
  border-bottom: 1px solid var(--table-border);
  vertical-align: top;
  transition: border-color 0.3s ease;
}

/* Alternating row colors */
.facts-table tbody tr:nth-child(even) {
  background-color: var(--table-even-row);
  transition: background-color 0.3s ease;
}

.facts-table tbody tr:hover {
  background-color: var(--table-hover);
}

/* Column widths */
.facts-table th:first-child,
.facts-table td:first-child {
  width: 35%;
}

.facts-table th:nth-child(2),
.facts-table td:nth-child(2) {
  width: 25%;
  font-style: italic;
}

.facts-table th:last-child,
.facts-table td:last-child {
  width: 40%;
}

/* Show More Button Styling */
.show-more-row {
  background-color: var(--table-even-row);
  border-top: 2px solid var(--border-color);
  border-bottom: 2px solid var(--border-color);
}

.show-more-row td {
  padding: 15px !important;
}

.show-more-row .nav-button {
  background-color: #27ae60;
  border-color: #27ae60;
  min-width: 200px;
}

.show-more-row .nav-button:hover:not(:disabled) {
  background-color: #219a52;
  border-color: #219a52;
}

.show-more-row .nav-button:active:not(:disabled) {
  background-color: #1e8449;
  border-color: #1e8449;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .container {
    padding: 10px;
  }

  h1 {
    font-size: 2rem;
  }

  /* Grid layout for game controls on mobile */
  .game-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    max-width: 300px;
    margin: 20px auto;
  }

  .game-controls .nav-button {
    margin: 0;
    width: 100%;
    padding: 12px 8px;
    text-align: center;
  }

  /* Transform table to card layout on mobile */
  .facts-table,
  .facts-table tbody,
  .facts-table tr,
  .facts-table td {
    display: block;
  }

  .facts-table {
    box-shadow: none;
    background-color: transparent;
  }

  .facts-table tr {
    background-color: var(--table-bg);
    border-radius: 8px;
    margin-bottom: 15px;
    padding: 15px;
    box-shadow: 0 2px 4px var(--card-shadow);
    border: 1px solid var(--table-border);
    transition: background-color 0.3s ease, border-color 0.3s ease,
      box-shadow 0.3s ease;
  }

  .facts-table tr:nth-child(even) {
    background-color: var(--table-bg);
  }

  .facts-table tr:hover {
    background-color: var(--table-even-row);
  }

  .facts-table td {
    border-bottom: none;
    padding: 5px 0;
    text-align: left;
    width: 100% !important;
  }

  .facts-table td:first-child {
    font-weight: 600;
    color: var(--header-color);
    font-size: 1.1em;
    margin-bottom: 8px;
    text-align: left;
    transition: color 0.3s ease;
  }

  .facts-table td:nth-child(2) {
    font-style: italic;
    font-size: 0.9em;
    margin-bottom: 5px;
    text-align: center;
  }

  .facts-table td:last-child {
    color: var(--text-color);
    line-height: 1.4;
    text-align: right;
    transition: color 0.3s ease;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 8px;
  }

  h1 {
    font-size: 1.5rem;
  }

  /* Single column layout for very small screens */
  .game-controls {
    grid-template-columns: 1fr;
    max-width: 250px;
    gap: 8px;
  }

  .game-controls .nav-button {
    padding: 14px 12px;
    font-size: 0.9rem;
  }

  .facts-table tr {
    padding: 12px;
    margin-bottom: 12px;
  }

  .facts-table td:first-child {
    font-size: 1em;
  }

  .facts-table td:nth-child(2) {
    font-size: 1em;
  }

  .facts-table td:last-child {
    font-size: 1em;
  }
}

.game-link-btn {
  display: inline-block;
  padding: 8px 12px;
  background-color: var(--game-link-bg);
  border: 2px solid transparent;
  border-radius: 6px;
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  white-space: nowrap;
}

.game-link-btn:hover {
  background-color: var(--game-link-hover);
  border-color: var(--button-bg);
  transform: translateY(-1px);
}

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

.game-link-btn strong {
  color: var(--text-color);
  transition: color 0.3s ease;
}

.game-link-btn.selected {
  background-color: var(--game-link-selected);
  border-color: var(--button-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px var(--card-shadow);
}

.game-link-btn.selected strong {
  color: white;
}

/* Footer styles */
footer {
  text-align: center;
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  transition: border-color 0.3s ease;
}

footer .nav-button {
  margin: 0 8px;
}

/* Error message styles */
.error-message {
  background: #e74c3c;
  color: white;
  padding: 15px;
  margin: 20px 0;
  border-radius: 6px;
  text-align: center;
  font-weight: 500;
}

/* Header home link styling */
.home-link {
  text-decoration: none;
  color: inherit;
  font-weight: bold;
  transition: color 0.3s ease;
}

.home-link:hover {
  color: var(--button-bg);
  text-decoration: none;
}

.home-link:visited {
  color: inherit;
}

/* Dark mode toggle button styling */
#darkModeToggle {
  position: relative;
  min-width: 80px;
}

#darkModeToggle.light-mode {
  background-color: #f39c12;
}

#darkModeToggle.light-mode:hover {
  background-color: #e67e22;
}

/* Responsive design improvements */
@media (max-width: 768px) {
  .game-link-btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  h1 {
    font-size: 2rem;
  }

  .game-info h2 {
    font-size: 1.5rem;
  }
}

.facts-table tbody tr {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.facts-table tbody tr:focus {
  outline: none;
}