/* Main Styles */

:root {
  /* Colors */
  --color-primary: #1a1a1a;
  --color-accent: #d825c3;
  --color-accent-dark: #ba16a7;
  --color-background: #ffffff;
  --color-surface: #f8f9fa;
  --color-border: #e1e5e9;
  --color-text: #1a1a1a;
  --color-text-light: #666;
  --color-success: #28a745;
  --color-error: #dc3545;
  --color-share: #17c3f2;
  --color-grid-line: rgba(0, 0, 0, 0.02);
  --color-header-background: rgba(23, 242, 116, 0.7);
  --color-about-link-hover: #333;
  
  /* Typography */
  --font-family: 'JetBrains Mono', monospace;
  --font-size-base: 16px;
  --font-size-small: 14px;
  --font-size-large: 18px;
  --font-size-xxl: 32px;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Layout */
  --container-max-width: 600px;
  --border-radius: 8px;
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #f2f4f8;
    --color-accent: #d825c3;
    --color-accent-dark: #ba16a7;
    --color-background: #0f1115;
    --color-surface: #171b22;
    --color-border: #2d3440;
    --color-text: #f2f4f8;
    --color-text-light: #b4bcc8;
    --color-share: #31c9f7;
    --color-grid-line: rgba(255, 255, 255, 0.06);
    /* Match light-mode visual green without dark background blending */
    --color-header-background: rgb(92, 246, 158);
    --color-about-link-hover: #ffffff;
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.45);
  }

  .header .game-title,
  .header .game-subtitle {
    color: #1a1a1a;
  }
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  line-height: 1.6;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  html {
    color-scheme: dark;
  }
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  background-image: 
    linear-gradient(var(--color-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid-line) 1px, transparent 1px);
  background-size: 24px 24px; /* grid spacing */
  background-position: 0 0, 0 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-xxl);
  font-weight: 400;
}

h2 {
  font-size: var(--font-size-base);
  text-transform: uppercase;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-light);
  text-align: center;
}

h3 {
  font-size: var(--font-size-large);
}

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

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header */
.header {
  padding: var(--spacing-lg) 0;
  top: 0;
  z-index: 100;
  margin-bottom: var(--spacing-lg);
  background-color: var(--color-header-background);
}

.header-content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  min-height: 56px;
}

.header-brand {
  text-align: center;
  margin: 0 auto;
}

.header a.header-brand,
.header a.header-brand:visited,
.header a.header-brand:hover,
.header a.header-brand:active,
.header a.header-brand:focus {
  text-decoration: none;
}

.header a.header-brand .game-title,
.header a.header-brand .game-subtitle {
  transition: color 0.2s ease;
}

.header a.header-brand:hover .game-title,
.header a.header-brand:hover .game-subtitle,
.header a.header-brand:focus .game-title,
.header a.header-brand:focus .game-subtitle {
  color: #2f2f2f;
}

.game-title {
  font-family: 'Bungee', cursive;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.01em;
}

.game-subtitle {
  font-size: var(--font-size-base);
  margin: 0 auto;
  max-width: 300px;
  text-align: center;
}

.header-account-btn {
  position: absolute;
  right: 0;
  top: 50%;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transform: translateY(-50%);
  background: #000;
  border: 1px solid #000;
  color: #fff;
  padding: 10px 14px;
  font-size: var(--font-size-small);
  min-width: 92px;
}

.header-account-btn[hidden] {
  display: none;
}

.header-account-btn:hover:not(:disabled) {
  transform: translateY(-50%);
}

.header-account-btn-icon {
  display: none;
  width: 18px;
  height: 18px;
}

.header-account-btn-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Main Content */
.main {
  min-height: auto; 
  padding: var(--spacing-sm) 0;
  position: relative; 
  z-index: 2;
}

/* Footer visibility control */
.hide-footer .footer {
  display: none;
}

/* Screen Management */
.screen {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.screen.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Buttons */
button {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

/* Daily Challenge Button */
.account-status,
.account-feedback {
  margin-bottom: var(--spacing-sm);
  text-align: left;
  color: var(--color-text);
}

#account-stats-feedback {
  font-size: 12px;
  color: var(--color-text-light);
}

.auth-feedback {
  margin-top: 8px;
  min-height: 1.25em;
  font-size: 12px;
  color: var(--color-text-light);
}

.account-identity {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.account-avatar {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #5cf69e;
  color: #1a1a1a;
  font-weight: 700;
  font-size: 20px;
  flex-shrink: 0;
}

.account-avatar.has-username {
  background: var(--color-accent);
  color: #fff;
}

.account-identity-text {
  min-width: 0;
}

.account-identity-text .account-status {
  display: inline;
  margin-right: 6px;
  margin-bottom: 0;
}

.account-signout-link {
  border: none;
  background: transparent;
  color: var(--color-text-light);
  padding: 0;
  font-size: 13px;
  text-decoration: underline;
  cursor: pointer;
  display: inline;
}

.account-signout-link:hover {
  color: var(--color-text);
  transform: none;
  box-shadow: none;
}

.danger-link {
  border: none;
  background: transparent;
  color: #ff6b6b;
  padding: 0;
  margin-left: 10px;
  font-size: 13px;
  text-decoration: underline;
  cursor: pointer;
  display: inline;
}

.danger-link:hover {
  color: #ff8787;
  transform: none;
  box-shadow: none;
}

.account-danger-zone {
  margin-top: 10px;
  padding: 12px;
  border: 1px solid rgba(255, 107, 107, 0.45);
  border-radius: var(--border-radius);
  background: rgba(255, 107, 107, 0.08);
}

.account-danger-text {
  margin: 0 0 10px 0;
  font-size: 12px;
  line-height: 1.4;
  color: #ffd2d2;
}

.account-danger-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.danger-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.account-button.account-button-danger {
  background: #b4232f;
  border-color: #b4232f;
  color: #fff;
}

.account-button.account-button-danger:hover:not(:disabled) {
  background: #d42f3c;
  border-color: #d42f3c;
}

.account-username-prompt {
  margin-top: 4px;
  margin-bottom: 0;
  font-size: 12px;
}

.account-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

.account-email-input {
  flex: 1 1 260px;
  min-width: 220px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-family);
}

.account-button {
  background: #000;
  color: #fff;
  border: 1px solid #000;
}

.account-button:hover:not(:disabled) {
  background: #1f1f1f;
  border-color: #1f1f1f;
}

.account-button.secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn {
  background: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}

.btn-small {
  padding: 8px 12px;
  font-size: 13px;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-danger {
  background: #b4232f;
  border-color: #b4232f;
  color: #fff;
}

.btn-danger:hover:not(:disabled) {
  background: #d42f3c;
  border-color: #d42f3c;
}

.section-heading {
  margin: 0 0 var(--spacing-sm) 0;
  text-align: left;
  font-size: 1rem;
}

.profile-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--spacing-md);
}

.profile-label {
  font-size: 12px;
  color: var(--color-text-light);
}

.profile-edit-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
}

.profile-input {
  flex: 1 1 260px;
  min-width: 220px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-family);
}

.profile-value {
  font-size: 14px;
  color: var(--color-text);
  word-break: break-word;
}

.account-danger-trigger {
  display: flex;
  justify-content: flex-end;
  width: 100%;
  margin-top: var(--spacing-sm);
}

.account-actions-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

.account-actions-row .account-danger-trigger {
  display: block;
  width: auto;
  margin-left: auto;
  margin-top: 0;
}

.account-sign-out-btn {
  padding: 6px 10px;
  font-size: 12px;
  line-height: 1.2;
}

.danger-heading {
  margin: 0 0 8px 0;
  font-size: 0.9rem;
}

.danger-copy,
.danger-confirm-copy {
  margin: 0 0 10px 0;
  font-size: 12px;
  line-height: 1.4;
}

.danger-confirm {
  margin-top: 12px;
}

.account-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
}

.account-page {
  width: min(680px, calc(100% - 24px));
  margin: 0 auto;
  background: var(--color-background);
  padding: var(--spacing-lg);
}

.account-page-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.account-page-header h2 {
  margin: 0;
  text-align: left;
  font-size: 1.1rem;
}

.account-modal.open {
  display: block;
}

.account-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
}

.account-modal-dialog {
  position: relative;
  margin: 64px auto;
  width: min(680px, calc(100% - 24px));
  max-height: calc(100vh - 96px);
  overflow-y: auto;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--spacing-lg);
}

.account-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.account-modal-header h2 {
  margin: 0;
  text-align: left;
  font-size: 1.1rem;
}

.account-icon-btn {
  margin-left: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 4px 10px;
  font-size: 18px;
  line-height: 1;
}

.account-page-header .account-icon-btn {
  margin-left: 0;
}

.account-modal-section {
  margin-bottom: var(--spacing-md);
}

.account-section-card {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface);
  padding: var(--spacing-md);
}

.account-section-card:last-of-type {
  margin-bottom: 0;
}

#mode-selection #account-top-section {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

#mode-selection #account-top-section .account-section-title {
  display: none;
}

.account-section-title {
  text-transform: uppercase;
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  margin: 0 0 var(--spacing-sm) 0;
}

.account-helper-text {
  margin-top: 0;
  margin-bottom: 6px;
  font-size: var(--font-size-large);
  color: var(--color-text);
}

.account-fine-print {
  margin: 10px auto;
  font-size: 11px;
  color: var(--color-text-light);
}

.account-otp-status {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--color-text-light);
}

.account-inline-link {
  margin: 0;
  font-size: inherit;
  color: inherit;
}

.account-welcome-back {
  margin: 0;
  text-align: center;
  color: var(--color-text);
  font-size: var(--font-size-large);
}

.account-welcome-back a {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.account-stats-fine-print {
  margin: 8px 0 0 0;
  text-align: left;
}

.account-detail-row {
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--color-text);
}

.account-detail-row span {
  color: var(--color-text-light);
}

.account-stats-row {
  display: grid;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

#account-stats-section {
  margin-top: 0;
}

.account-stats-row-primary {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: var(--spacing-md);
}

.account-stats-row-secondary {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: var(--spacing-xl);
  
}

.account-stat-card {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  padding: 12px;
}

.account-stat-card span {
  display: block;
  color: var(--color-text-light);
  font-size: 12px;
  margin-bottom: 6px;
}

.account-stat-card strong {
  font-size: 1.15rem;
  color: var(--color-text);
}

.account-topic-stats-table-wrap {
  margin-top: var(--spacing-md);
  overflow-x: auto;
}

.account-topic-stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.account-topic-stats-table th,
.account-topic-stats-table td {
  border-bottom: 1px solid var(--color-border);
  padding: 10px 8px;
  text-align: left;
  vertical-align: middle;
}

.account-topic-stats-table th {
  color: var(--color-text-light);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.account-topic-sort-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
  padding: 0;
  width: 100%;
  text-align: left;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.account-topic-sort-btn:hover,
.account-topic-sort-btn.is-active {
  color: var(--color-text);
}

.account-topic-sort-indicator {
  min-width: 0.8em;
  display: inline-block;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.account-topic-sort-btn:hover:not(:disabled) {
  transform: none;
  box-shadow: none;
  background: transparent;
}

.account-topic-sort-btn:hover .account-topic-sort-indicator,
.account-topic-sort-btn.is-active .account-topic-sort-indicator {
  opacity: 1;
}

.account-topic-sort-btn[data-topic-sort-key="topicName"]:hover .account-topic-sort-indicator:empty::before {
  content: "▲";
}

.account-topic-sort-btn[data-topic-sort-key="userAverage"]:hover .account-topic-sort-indicator:empty::before,
.account-topic-sort-btn[data-topic-sort-key="userBest"]:hover .account-topic-sort-indicator:empty::before,
.account-topic-sort-btn[data-topic-sort-key="globalAverage"]:hover .account-topic-sort-indicator:empty::before {
  content: "▼";
}

.account-topic-score-positive {
  color: var(--color-success);
  font-weight: 700;
}

.account-topic-score-negative {
  color: var(--color-error);
  font-weight: 700;
}

.account-topic-stats-table td:last-child {
  width: 1%;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .account-topic-stats-table th:last-child,
  .account-topic-stats-table td:last-child {
    display: none;
  }
}

.account-daily-distribution-chart {
  margin-bottom: var(--spacing-md);
}

.account-stats-empty {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-light);
  font-size: 13px;
}

.account-loading-placeholder {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  padding: 10px;
  margin-bottom: var(--spacing-md);
  display: grid;
  gap: 8px;
}

.account-loading-placeholder[hidden] {
  display: none;
}

.account-loading-row {
  display: grid;
  grid-template-columns: 20px 1fr;
  align-items: center;
  gap: 10px;
}

.account-loading-label,
.account-loading-bar {
  display: block;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-border), rgba(255, 255, 255, 0.18), var(--color-border));
  background-size: 200% 100%;
  animation: account-loading-shimmer 1.4s ease-in-out infinite;
}

.account-loading-label {
  height: 10px;
}

.account-loading-bar {
  height: 10px;
}

.account-loading-placeholder-table {
  margin-top: 8px;
}

@keyframes account-loading-shimmer {
  0% {
    background-position: 180% 0;
  }
  100% {
    background-position: -20% 0;
  }
}

.account-daily-reminder-btn {
  width: 100%;
  margin: 0 0 var(--spacing-md) 0;
  text-align: center;
}

#account-screen .results-distribution {
  margin-top: 0;
}

#account-screen .results-distribution-title {
  margin-bottom: 10px;
  text-align: left;
  max-width: none;
}

#account-screen .distribution-chart,
#account-screen .distribution-row {
  max-width: 100%;
  margin-left: 0;
  margin-right: 0;
}

.notification-settings {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
  color: var(--color-text-light);
  font-size: var(--font-size-small);
}

.daily-challenge-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
  margin-top: var(--spacing-xl);
  max-width: 400px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.daily-challenge-button:hover {
  border-color: var(--color-primary);
  background-color: var(--color-background);
}

.daily-challenge-button.primary {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: white;
}

.daily-challenge-button.primary:hover:not(.completed) {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

/* Daily button completed state */
.daily-challenge-button.completed {
  border-color: var(--color-border);
  background-color: var(--color-surface) !important;
  opacity: 1;
  cursor: not-allowed;
  color: var(--color-text);
}

.completion-label {
  font-weight: 700;
  color: var(--color-success);
  letter-spacing: 0.5px;
  background-color: var(--color-background);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--color-border);
  margin-left: var(--spacing-xs);
}

.completion-label.failed {
  color: var(--color-error);
  border-color: var(--color-error);
}

/* Daily button failed state */
.daily-challenge-button.failed {
  border-color: var(--color-error) !important;
  background-color: rgba(220, 53, 69, 0.1) !important;
  color: var(--color-error) !important;
  opacity: 0.7;
  cursor: not-allowed;
}

.daily-challenge-button.failed:hover {
  border-color: var(--color-error) !important;
  background-color: rgba(220, 53, 69, 0.1) !important;
  transform: none;
}

/* Streaks Display */
.streaks-text {
  text-align: center;
  margin: var(--spacing-md) 0;
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  font-weight: 500;
}

/* Testing buttons container */
.testing-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin: var(--spacing-md) 0;
  flex-wrap: wrap;
}

/* Testing mode buttons */
.skip-to-results-btn,
.reset-daily-btn {
  font-size: var(--font-size-small);
  padding: var(--spacing-md) var(--spacing-lg) !important;
}

.skip-to-results-btn {
  border-color: #ff6b6b !important;
  background-color: rgba(255, 107, 107, 0.1) !important;
  color: #ff6b6b !important;
}

.skip-to-results-btn:hover {
  background-color: rgba(255, 107, 107, 0.2) !important;
  border-color: #e55555 !important;
}

.reset-daily-btn {
  border-color: #ffa500 !important;
  background-color: rgba(255, 165, 0, 0.1) !important;
  color: #ffa500 !important;
}

.reset-daily-btn:hover {
  background-color: rgba(255, 165, 0, 0.2) !important;
  border-color: #e5940a !important;
}

.mode-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.mode-title {
  font-size: var(--font-size-large);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.mode-description {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  font-weight: 400;
}

.privacy-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

.privacy-content ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.privacy-content li {
  color: var(--color-text-light);
}

.daily-topic {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.25;
}

.daily-date {
  margin-top: 6px;
  font-size: 0.95rem;
  opacity: 0.9;
}

.daily-emoji {
  font-size: 1.8rem;
  line-height: 1;
  margin-bottom: 8px;
  display: block;
}

/* Topic Selection */
.topic-grid {
  display: grid;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.topic-button {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  padding: var(--spacing-lg);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
}

.topic-button:hover {
  border-color: var(--color-primary);
  background-color: var(--color-background);
}

.topic-icon {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.topic-title {
  font-size: var(--font-size-large);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.topic-description {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  font-weight: 400;
}

.back-button {
  margin-top: var(--spacing-xl);
  background: none;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
}

.back-button:hover {
  background-color: var(--color-surface);
  color: var(--color-text);
}

/* Practice Catalog (Home) */
.practice-catalog {
  margin: var(--spacing-xxl) auto;
  max-width: 1000px;
}

.recommended-topics {
  margin: var(--spacing-xxl) auto var(--spacing-xl);
  max-width: 1000px;
}

.recommended-topics .catalog-grid {
  margin-top: 20px;
  justify-content: center;
  grid-template-columns: repeat(3, minmax(200px, 260px));
}

.recommended-topic-item {
  gap: 8px;
}

.recommended-topic-reason {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .recommended-topics .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .recommended-topics .catalog-grid .recommended-topic-item:nth-child(n+3) {
    display: none;
  }
}

.catalog {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin-top: 40px;
}

.catalog-section-title {
  font-size: var(--font-size-large);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat( auto-fill, minmax(200px, 1fr) );
  gap: var(--spacing-md);
}

.catalog-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
  text-align: left;
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
}

.catalog-item:hover {
  border-color: var(--color-primary);
  background-color: var(--color-background);
}

.catalog-item.placeholder {
  opacity: 0.6;
  cursor: default;
}

.catalog-item.placeholder:hover {
  border-color: var(--color-border);
  background-color: var(--color-surface);
}

.item-icon { font-size: 1.25rem; }
.item-title { font-weight: 600; color: var(--color-text); }
.item-meta { font-size: 12px; color: var(--color-text-light); }

/* High score text styling */
.high-score-text {
  color: var(--color-text-light);
  font-size: 12px;
  margin-top: 4px;
  font-weight: 600;
  line-height: 1.2;
}

/* Topic highlighting when accessed from unique url */
.topic-highlight {
  animation: topicHighlight 6s ease-in-out;
  transform: scale(1.02);
  box-shadow: 0 0 20px rgba(216, 37, 195, 0.3);
  border-color: var(--color-accent) !important;
  background-color: rgba(216, 37, 195, 0.05) !important;
}

@keyframes topicHighlight {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(216, 37, 195, 0);
  }
  10% {
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(216, 37, 195, 0.4);
  }
  90% {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(216, 37, 195, 0.3);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(216, 37, 195, 0);
  }
}

/* Hide extra items unless section expanded */
.catalog-section .catalog-item.extra { display: none; }
.catalog-section.expanded .catalog-item.extra { display: flex; }

/* Show more / less button */
.catalog-toggle {
  margin-top: var(--spacing-sm);
  background: none;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-small);
}

/* Challenge a Friend Button */
.challenge-section {
  text-align: center;
  margin: var(--spacing-xl) 0;
  display: none;
}

.challenge-friend-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: var(--color-share);
  color: var(--color-text);
  border: none;
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(216, 37, 195, 0.2);
}

.challenge-friend-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

.challenge-text {
  font-family: var(--font-family);
}

/* About */
.about {
  color: var(--color-text-light);
  margin: var(--spacing-xxl) auto 0;
  text-align: center;
  width: 100%;
}

/* Override container max-width for full-width about section */
@media (min-width: 1000px) {
  .about {
    max-width: none;
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
}

.about h2 {margin: 80px auto 20px;}

/* Three-column layout for desktop */
.about-columns {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.about-column {
  flex: 1;
}

/* Desktop layout - three columns */
@media (min-width: 1000px) {
  .about-columns {
    flex-direction: row;
    gap: var(--spacing-xl);
    text-align: left;
    width: 100%;
  }
  
  .about-column {
    flex: 1;
    min-width: 0; /* Allow columns to shrink */
  }
  
  .about-column-1 {
    flex: 0 0 auto; /* Don't grow, don't shrink */
    width: 250px; /* Slightly wider for better proportion */
  }
  
  .about-column-2 {
    flex: 1; /* Take remaining space */
  }
  
  .about-column-3 {
    flex: 0 0 auto; /* Don't grow, don't shrink */
    width: 220px; /* Slightly wider for better proportion */
  }
}

.about p {
  color: var(--color-text-light);
  font-size: 0.9em;
}

.about a {
  color: var(--color-text-light);
  transition: color 0.2s ease;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about a:hover {
  color: var(--color-about-link-hover);
}


/* Credits */
.credits {
  margin-bottom: 30px;
  position: relative;
}

.credits .buy-me-coffee {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffdd44;
  color: #333 !important;
  padding: 8px 16px;
  border-radius: 8px;
  border: none !important;
  font-weight: 500;
  font-size: 0.9em;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  text-decoration: none;
}

.credits .buy-me-coffee:hover {
  background: #ffd700;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  border: none !important;
  text-decoration: none;
}

.credits .buy-me-coffee svg {
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .credits .buy-me-coffee {
    padding: 8px 12px;
    font-size: 0.85em;
    gap: 6px;
  }
  
  .credits .buy-me-coffee svg {
    width: 16px;
    height: 16px;
  }
}

/* Loading Screen */
.loading-content {
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-lg);
}

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

/* Footer, hidden by default; shown only during game (when body has .game-active) */
.footer {
  display: none;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.game-active:not(.hide-footer) .footer {
  display: block;
}

.footer p {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  margin: 0;
}

/* Footer links */
.footer a,
.footer a:visited,
.footer a:hover,
.footer a:active,
.footer a:focus {
  color: inherit;
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --font-size-base: 14px;
    --font-size-large: 16px;
    --font-size-xxl: 28px;
    --spacing-md: 12px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }

  .header-content {
    justify-content: center;
  }

  .header-brand {
    text-align: center;
  }

  .game-subtitle {
    text-align: center;
    margin: 0 auto;
  }

  .header-account-btn {
    min-width: 40px;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 999px;
    right: 0;
    top: 20%;
    transform: translateY(-50%);
    justify-content: center;
  }

  .header-account-btn-text {
    display: none;
  }

  .header-account-btn-icon {
    display: inline-flex;
  }

  .account-modal-dialog,
  .account-page {
    margin: 20px auto;
    width: calc(100% - 16px);
    max-height: calc(100vh - 32px);
    padding: var(--spacing-md);
  }

  .account-controls {
    flex-direction: column;
    align-items: stretch;
  }

  #mode-selection #account-top-section .account-controls {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .account-email-input {
    min-width: 0;
    width: 100%;
    padding: 10px 12px;
    line-height: 1.2;
    height: 44px;
    max-height: 44px;
  }

  .account-button {
    width: 100%;
  }

  #mode-selection #account-top-section .account-email-input {
    flex: 1 1 auto;
    min-width: 0;
  }

  #mode-selection #account-top-section .account-button {
    width: auto;
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .btn {
    width: 100%;
  }

  .account-stats-row-primary,
  .account-stats-row-secondary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .daily-challenge-button,
  .topic-button {
    padding: var(--spacing-lg);
  }
  
  .mode-icon {
    font-size: 1.5rem;
  }
  
  /* Two topics per row on mobile */
  .catalog-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .header {
    padding: var(--spacing-md) 0;
  }
  
  .main {
    padding: var(--spacing-lg) 0;
  }
  
  .daily-challenge-button {
    margin-top: var(--spacing-lg);
  }
}

/* Static Country List for results screen */
.static-country-list {
  margin: var(--spacing-xl) 0;
}

.static-list-topic-title {
  font-size: var(--font-size-large);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  text-align: center;
}

.static-list-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.static-list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0.75rem 1rem;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: var(--font-size-small);
  transition: all 0.3s ease;
  margin: 0 auto;
  width: 90%;
  max-width: 400px;
}

.static-list-item:hover {
  background-color: var(--color-surface);
}



.static-flag {
  font-size: 1.2rem;
  min-width: 1.5rem;
}

.static-name {
  flex: 1;
  font-weight: 500;
  color: var(--color-text);
}

.static-value {
  font-weight: 600;
  color: var(--color-primary);
  text-align: right;
  min-width: 4rem;
}

.static-list-item-extreme {
  opacity: 0.6;
}

.static-list-item-extreme .static-name {
  color: var(--color-text-light);
}

.static-extreme-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.5px;
  background-color: var(--color-background);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--color-border);
  margin-left: var(--spacing-xs);
}

.static-extreme-value {
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  min-width: 4rem;
}

.learn-more-link {
  display: block;
  margin: var(--spacing-lg) auto 0;
  color: var(--color-accent);
  text-decoration: underline;
  font-weight: 500;
  font-size: var(--font-size-base);
  text-align: center;
  transition: color 0.2s ease;
}

.learn-more-link:hover {
  color: var(--color-accent-dark);
}

/* Mobile responsiveness for static list */
@media (max-width: 768px) {
  

  .static-list-item {
    padding: 0.5rem 0.75rem;
    gap: var(--spacing-sm);
    width: 95%;
  }
  
  .static-flag {
    font-size: 1rem;
    min-width: 1.2rem;
  }
  
  .static-name {
    font-size: var(--font-size-small);
  }
  
  .static-value {
    font-size: var(--font-size-small);
    min-width: 3rem;
  }
  
  .static-list-topic-title {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
  }
  
  .learn-more-link {
    font-size: var(--font-size-small);
    margin-top: var(--spacing-md);
  }
  
  .static-extreme-label {
    font-size: 8px;
    padding: 1px 4px;
    margin-left: 4px;
  }
  
  .static-extreme-value {
    font-size: var(--font-size-small);
  }
}

@media (max-width: 480px) {
  .static-list-item {
    width: 98%;
    padding: 0.5rem;
  }
}

/* Topic Introduction Styles */
.topic-introduction {
  max-width: var(--container-max-width) !important;
  margin-left: auto !important;
  margin-right: auto !important;
  text-align: center;
  margin-bottom: 24px;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.topic-introduction .topic-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.3;
}

.topic-introduction .topic-instruction {
  font-size: 14px;
  color: var(--color-text-light);
  font-style: italic;
  margin: 0;
}

.topic-introduction h2.topic-title {
  text-transform: none !important;
}

/* Topic Introduction Buttons */
.topic-buttons {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.start-now-btn {
  background: var(--color-accent);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 12px;
  transition: background-color 0.2s ease;
}

.start-now-btn:hover {
  background: var(--color-accent-dark);
}

.back-btn {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 12px;
  margin-right: 8px;
  transition: all 0.2s ease;
}

.back-btn:hover {
  background-color: var(--color-surface);
  color: var(--color-text);
}

/* Post-game sign-in prompt container */
.post-game-signup-cta {
  margin: var(--spacing-lg) auto 0;
  max-width: 520px;
  border:0;
}

.post-game-signup-feedback {
  min-height: 1.2em;
}

/* Admin insights page */
.admin-page {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-xxl);
}

.admin-state {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  background: var(--color-surface);
  padding: var(--spacing-lg);
}

.admin-loading h2 {
  margin: 0;
}

.admin-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.admin-header-row h2 {
  margin: 0;
}

.admin-home-link {
  white-space: nowrap;
  text-decoration: none;
}

.admin-note {
  margin: 0 0 var(--spacing-lg);
  color: var(--color-text-light);
  font-size: var(--font-size-small);
}

.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.admin-stat-card {
  min-height: 100%;
}

.admin-stat-card strong {
  font-size: var(--font-size-xl);
}

.admin-streak-chart {
  display: grid;
  gap: 8px;
  margin-bottom: var(--spacing-lg);
}

.admin-streak-row {
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  align-items: center;
  gap: 10px;
}

.admin-streak-label {
  font-size: 12px;
  color: var(--color-text-light);
  text-align: right;
}

.admin-streak-bar {
  height: 12px;
  border-radius: 999px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.admin-streak-fill {
  display: block;
  height: 100%;
  min-width: 2px;
  background: var(--color-primary);
}

.admin-streak-value {
  font-size: 12px;
  color: var(--color-text);
  text-align: left;
}

.admin-chart-empty {
  margin: 0;
  color: var(--color-text-light);
  font-size: var(--font-size-small);
}

.admin-table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: auto;
  background: var(--color-background);
}

.admin-topic-table {
  margin: 0;
}

.admin-empty-row td {
  color: var(--color-text-light);
  text-align: center;
  padding: var(--spacing-md);
}

@media (max-width: 768px) {
  .admin-header-row {
    flex-direction: column;
    align-items: flex-start;
  }
}