:root {
  color-scheme: dark;
  --bg-color: #121212;
  --surface-color: #242424;
  --text-color: #ffffff;
  --accent-green: #4ade80;
  --accent-pink: #f472b6;
  --border-light: #aaaaaa;
  --focus-color: #fdfd96;
  --on-accent: #000000;
  --ui-scale: 1.25;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg-color: #f5f5f5;
  --surface-color: #dddddd;
  --text-color: #000000;
  --border-light: #444444;
  --focus-color: #9f9f03;
  --accent-green: #097732;
  --accent-pink: #800d48;
  --on-accent: #ffffff;
}

* {
  box-sizing: border-box;
}

/* The root stays a fixed 16px on purpose - --ui-scale is a text-size
   control, not a page-zoom control, so text grows without dragging
   container padding/gaps/dialog widths along with it. */
html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  font-size: calc(1rem * var(--ui-scale));
}
.site-header,
.site-footer {
  flex-shrink: 0;
}

[hidden] {
  display: none !important;
}

a {
  color: var(--focus-color);
  text-decoration: underline;
}
a:hover,
a:focus-visible {
  color: var(--focus-color);
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--focus-color);
  color: #000000;
  padding: 0.75rem 1.25rem;
  font-weight: bold;
  z-index: 1000;
  border-radius: 0 0 8px 0;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}
.skip-link:focus-visible {
  color: #000000;
}

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

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

/* --- Header --- */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 2px solid var(--divider-color);
}

.back-link-bar {
  padding: 0.75rem 1.5rem;
}
/* Named back-link-game (not back-link) deliberately - must not collide
   with the root site's .back-link class, which gets a history-aware
   click handler elsewhere; this link always goes to a fixed
   destination (this game's own info page) and should stay a plain link. */
.back-link-game {
  display: inline-block;
  color: var(--accent-green);
  font-weight: bold;
  font-size: calc(0.9rem * var(--ui-scale));
  text-decoration: none;
}
.back-link-game:hover,
.back-link-game:focus-visible {
  text-decoration: underline;
}

.site-title {
  /* Comes after .header-controls in the DOM (so the speech toggle inside
     it is the very first Tab stop on the page, letting a screen reader
     user silence in-app speech before hearing anything else) - this order
     value restores the original left-to-right visual position without
     touching tab order, which always follows DOM order regardless of
     this property. */
  order: 1;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  color: var(--text-color);
  font-family: inherit;
  font-size: calc(1.6rem * var(--ui-scale));
  font-weight: 800;
  cursor: pointer;
}
.site-title:hover,
.site-title:focus-visible {
  color: var(--accent-green);
}
.site-title .accent-pink { color: var(--accent-pink); }

.header-controls {
  order: 2;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.header-controls #settings-btn {
  padding: 0.4em 0.9em;
  font-size: calc(0.875rem * var(--ui-scale));
}

/* gap + padding (not overflow: hidden) - overflow: hidden would clip a
   focus ring on the last button, since it needs to render outside the
   button's own box but was being clipped by the group's rounded corner. */
.theme-toggle-group {
  display: flex;
  gap: 4px;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  padding: 3px;
}
.theme-toggle-btn {
  background-color: transparent;
  color: var(--text-color);
  border: none;
  border-radius: 6px;
  padding: 0.4em 0.9em;
  font-size: calc(0.875rem * var(--ui-scale));
  font-weight: bold;
  cursor: pointer;
}
.theme-toggle-btn:hover,
.theme-toggle-btn:focus-visible {
  background-color: var(--border-light);
  color: var(--bg-color);
}
.theme-toggle-btn[aria-checked="true"] {
  background-color: var(--accent-pink);
  color: var(--on-accent);
}

.speech-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  background: transparent;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  color: var(--text-color);
  padding: 0.4em 0.9em;
  font-size: calc(0.875rem * var(--ui-scale));
  font-weight: bold;
  cursor: pointer;
}
.speech-toggle-btn:hover,
.speech-toggle-btn:focus-visible {
  background-color: var(--border-light);
  color: var(--bg-color);
}
.speech-toggle-btn[aria-pressed="true"] {
  background-color: var(--accent-green);
  color: var(--on-accent);
  border-color: var(--accent-green);
}

/* The Settings dialog's own Theme section is a duplicate of the header's
   inline toggle, only meant to be reachable on narrow viewports where the
   header hides its copy (see the max-width: 960px block below) - hidden
   here by default so desktop doesn't show the same control twice. */
.settings-section-theme { display: none; }
@media (max-width: 960px) {
  .header-controls > .theme-toggle-group,
  .header-controls > #speech-quick-toggle {
    display: none;
  }
  .settings-section-theme { display: block; }
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  background-color: transparent;
  color: var(--text-color);
  border: 2px solid var(--accent-green);
  padding: 0.625em 1.25em;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
  font-size: calc(1rem * var(--ui-scale));
  cursor: pointer;
  font-family: inherit;
}
.btn:hover,
.btn:focus-visible {
  background-color: var(--accent-green);
  color: var(--on-accent);
}
.btn-primary {
  background-color: var(--accent-green);
  color: var(--on-accent);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  filter: brightness(1.1);
}
.btn-secondary {
  border-color: var(--border-light);
}
.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--border-light);
  color: var(--bg-color);
}
.btn-danger {
  border-color: var(--accent-pink);
}
.btn-danger:hover,
.btn-danger:focus-visible {
  background-color: var(--accent-pink);
  color: var(--on-accent);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
/* Resting-state tints for specific buttons (Read Aloud / Eat a Treat) -
   a plain single-class selector so it loses to .btn-secondary:hover's
   higher-specificity background on hover/focus, but still beats .btn's
   plain transparent default since it's declared after it here. */
.btn-tint-yellow {
  background-color: color-mix(in srgb, var(--focus-color) 20%, var(--surface-color));
}
.btn-tint-pink {
  background-color: color-mix(in srgb, var(--accent-pink) 20%, var(--surface-color));
}

/* --- Layout --- */
main {
  max-width: 700px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  flex: 1;
}

.screen h1 {
  font-size: calc(2.25rem * var(--ui-scale));
  margin-top: 0;
  margin-bottom: 0.5rem;
}
.screen-intro {
  font-size: calc(1.125rem * var(--ui-scale));
  color: var(--border-light);
  margin: 0 0 2rem;
}
.game-hint {
  font-size: calc(0.95rem * var(--ui-scale));
  color: var(--border-light);
  margin: 1rem 0 0;
}

/* --- feature-section (How to Play) --- */
.feature-section {
  background-color: var(--surface-color);
  border: 2px solid var(--divider-color);
  border-radius: 10px;
  margin-bottom: 1.75rem;
  padding: 0.25rem 1.5rem;
}
.feature-section summary {
  cursor: pointer;
  font-size: calc(1.15rem * var(--ui-scale));
  line-height: 1;
  font-weight: bold;
  padding: 1.1em 0;
  color: var(--accent-pink);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.feature-section summary:hover,
.feature-section summary:focus-visible {
  color: var(--focus-color);
}
.feature-section summary::-webkit-details-marker { display: none; }
.feature-section summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
  font-size: 1.4em;
  line-height: 1;
  color: var(--accent-green);
}
.feature-section[open] summary::before { content: "\2212"; }
.feature-section[open] summary {
  border-bottom: 2px solid var(--divider-color);
  margin-bottom: 0.5rem;
}
.feature-section ul {
  padding-left: 1.5rem;
  padding-bottom: 1.25rem;
}
.feature-section li { margin-bottom: 0.6rem; font-size: calc(1rem * var(--ui-scale)); }
.feature-section kbd {
  background-color: var(--bg-color);
  border: 2px solid var(--focus-color);
  color: var(--text-color);
  padding: 0.1em 0.45em;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
}

/* --- Game screen: status bar --- */
.status-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  background-color: var(--surface-color);
  border: 2px solid var(--border-light);
  border-radius: 10px;
  padding: 0.9rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: calc(1.05rem * var(--ui-scale));
  font-weight: bold;
}
.status-stat b {
  color: var(--focus-color);
}

/* --- Story box --- */
.story-box {
  background-color: var(--surface-color);
  border: 2px solid var(--border-light);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  min-height: 8rem;
}
.last-action-heading {
  font-size: calc(1.05rem * var(--ui-scale));
  font-style: italic;
  color: var(--accent-pink);
  margin: 0.25rem 0 1rem;
}
#story-text {
  font-size: calc(1.3rem * var(--ui-scale));
  line-height: 1.5;
  margin: 1rem 0 0;
}

/* --- Adventure choices --- */
.choices-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}
@media (min-width: 961px) {
  .choices-list {
    grid-template-columns: repeat(2, 1fr);
  }
}
.choice-btn {
  display: block;
  width: 100%;
  text-align: left;
  background-color: color-mix(in srgb, var(--accent-green) 20%, var(--surface-color));
  color: var(--text-color);
  border: 2px solid var(--border-light);
  border-radius: 10px;
  padding: 1em 1.25em;
  font-size: calc(1.05rem * var(--ui-scale));
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}
.choice-btn:hover,
.choice-btn:focus-visible {
  border-color: var(--focus-color);
}

.game-footer-row {
  align-items: center;
}
#no-treats-label {
  font-size: calc(1rem * var(--ui-scale));
  color: var(--border-light);
  font-weight: bold;
}

/* --- End-of-day block --- */
.end-game-block {
  text-align: center;
  padding: 2.5rem 1rem;
}
.end-game-block h2 {
  font-size: calc(2rem * var(--ui-scale));
  color: var(--accent-green);
  margin-top: 0;
}
.end-game-block p {
  font-size: calc(1.2rem * var(--ui-scale));
}

/* --- Modal backdrop & shared dialog panel --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 40;
}
.settings-dialog,
.quiz-dialog,
.message-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--surface-color);
  color: var(--text-color);
  border: 2px solid var(--divider-color);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  max-height: 90vh;
  overflow-y: auto;
  width: min(28rem, 92vw);
}
.settings-dialog { z-index: 50; width: min(34rem, 94vw); text-align: left; }
.quiz-dialog { z-index: 50; }
.message-dialog { z-index: 55; text-align: center; }

.settings-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--divider-color);
  padding-bottom: 0.9rem;
  margin-bottom: 1.25rem;
}
.settings-dialog-header h2 {
  margin: 0;
  font-size: calc(1.6rem * var(--ui-scale));
}
.icon-btn {
  background: transparent;
  border: 2px solid var(--border-light);
  color: var(--text-color);
  border-radius: 50%;
  width: 2.5em;
  height: 2.5em;
  font-size: calc(1.25rem * var(--ui-scale));
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
}
.icon-btn:hover,
.icon-btn:focus-visible {
  background-color: var(--border-light);
  color: var(--bg-color);
}

.settings-section {
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 2px solid var(--divider-color);
}
.settings-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.settings-section h3 {
  font-size: calc(1.15rem * var(--ui-scale));
  color: var(--accent-pink);
  margin-top: 0;
  margin-bottom: 1rem;
}
/* Display and Text to Speech are <details>/<summary> instead of a plain
   h3 - long enough sections that collapsing them by default keeps the
   Settings dialog scannable. Selector is scoped to summary specifically
   (not "h3, summary" together) so the Theme section's real <h3> - not a
   <details>, deliberately not made collapsible - keeps its plain heading
   look instead of picking up the expand/collapse triangle. */
.settings-section summary {
  cursor: pointer;
  font-size: calc(1.15rem * var(--ui-scale));
  font-weight: bold;
  color: var(--accent-pink);
  margin-top: 0;
  margin-bottom: 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5em;
}
.settings-section summary::-webkit-details-marker { display: none; }
.settings-section summary::before {
  content: "+";
  display: inline-block;
  color: var(--accent-green);
  font-weight: 800;
  transform: scale(1.3);
}
.settings-section[open] summary::before {
  content: "\2212";
}
.field {
  margin-bottom: 1.1rem;
}
.field:last-child { margin-bottom: 0; }
.field label {
  display: block;
  font-weight: bold;
  font-size: calc(1rem * var(--ui-scale));
  margin-bottom: 0.35rem;
}
.field-hint {
  font-size: calc(0.85rem * var(--ui-scale));
  color: var(--border-light);
  margin: 0.15rem 0 0.5rem;
}
.field select,
.field input[type="text"],
.field input[type="password"] {
  width: 100%;
  padding: 0.6em;
  font-size: calc(1rem * var(--ui-scale));
  border: 2px solid var(--border-light);
  border-radius: 8px;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: inherit;
}
.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.switch-row label {
  margin-bottom: 0;
}
.switch-btn {
  background: transparent;
  border: 2px solid var(--border-light);
  border-radius: 999px;
  color: var(--text-color);
  padding: 0.4em 1em;
  font-size: calc(1rem * var(--ui-scale));
  font-weight: bold;
  cursor: pointer;
  min-width: 5em;
  flex-shrink: 0;
}
.switch-btn[aria-checked="true"] {
  background-color: var(--accent-green);
  color: var(--on-accent);
  border-color: var(--accent-green);
}
.password-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}
.password-row input {
  flex: 1;
}

/* --- Quiz dialog --- */
.quiz-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-size: calc(1.3rem * var(--ui-scale));
}
.quiz-lives {
  color: var(--accent-pink);
  letter-spacing: 0.1rem;
}
.quiz-timer {
  font-weight: 800;
  color: var(--focus-color);
}
.quiz-question {
  text-align: center;
  font-size: calc(1.8rem * var(--ui-scale));
  font-weight: 800;
  min-height: 2.4em;
  margin-bottom: 1.25rem;
}
#quiz-answer {
  display: block;
  width: 100%;
  text-align: center;
  font-size: calc(1.6rem * var(--ui-scale));
  padding: 0.5em;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin-bottom: 1.25rem;
}
#quiz-submit {
  width: 100%;
  text-align: center;
}

/* --- Message dialog --- */
.message-dialog h2 {
  margin-top: 0;
  font-size: calc(1.6rem * var(--ui-scale));
  color: var(--accent-green);
}
.message-dialog p {
  font-size: calc(1.15rem * var(--ui-scale));
  margin-bottom: 1.5rem;
}
.message-dialog .btn-row {
  justify-content: center;
}
.message-dialog[data-tone="box"] { border-color: var(--accent-green); }
.message-dialog[data-tone="box"] h2 { color: var(--accent-green); }
.message-dialog[data-tone="treat"] { border-color: var(--accent-pink); }
.message-dialog[data-tone="treat"] h2 { color: var(--accent-pink); }
.message-dialog[data-tone="warning"] { border-color: var(--focus-color); }
.message-dialog[data-tone="warning"] h2 { color: var(--focus-color); }
.message-dialog[data-tone="danger"] { border-color: var(--accent-pink); }
.message-dialog[data-tone="danger"] h2 { color: var(--accent-pink); }

/* --- Footer --- */
.site-footer {
  border-top: 2px solid var(--divider-color);
  padding: 1.5rem;
  text-align: center;
  font-size: calc(0.875rem * var(--ui-scale));
}
.site-footer p { margin: 0.4rem 0; }

@media (max-width: 500px) {
  .status-bar {
    flex-direction: column;
    gap: 0.5rem;
  }
}