/* Wizarding Code — lesson companion */
:root {
  --ink: #1a1612;
  --ink-soft: #3d3429;
  --parchment: #f3ead7;
  --parchment-deep: #e8d9c0;
  --cream: #faf6ee;
  --gold: #b8860b;
  --gold-bright: #d4a017;
  --amber: #c45c26;
  --forest: #2c4a3e;
  --card: #fffdf8;
  --border: #c9b896;
  --code-bg: #1e1b18;
  --code-fg: #e8e0d4;
  --shadow: 0 4px 20px rgba(26, 22, 18, 0.08);
  --radius: 10px;
  --font-display: "Cinzel", "Palatino Linotype", Palatino, serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
  --max: 46rem;
  --header-h: 3.5rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(ellipse 120% 80% at 10% -10%, rgba(184, 134, 11, 0.12), transparent 50%),
    radial-gradient(ellipse 90% 60% at 100% 0%, rgba(44, 74, 62, 0.1), transparent 45%),
    linear-gradient(180deg, var(--cream) 0%, var(--parchment) 40%, var(--parchment-deep) 100%);
  min-height: 100vh;
}

a {
  color: var(--forest);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--cream);
  padding: 0.5rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 238, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(184, 134, 11, 0.15);
}

.site-header-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
}

.site-brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-brand:hover {
  color: var(--gold);
}

.site-brand span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  flex: 1;
  justify-content: flex-end;
}

.site-nav a {
  font-size: 0.8rem;
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink-soft);
  border: 1px solid transparent;
}

.site-nav a:hover {
  background: var(--parchment);
  border-color: var(--border);
  color: var(--ink);
}

.site-nav a[aria-current="page"] {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
}

.site-nav a.nav-hub {
  border: 1px solid var(--border);
  background: var(--card);
}

.module-picker-wrap {
  display: none;
  width: 100%;
}

.module-picker {
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--ink);
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
  }

  .module-picker-wrap {
    display: block;
  }
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.75rem 1.25rem 4rem;
}

.page-flow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  color: var(--ink-soft);
}

.page-flow a {
  font-weight: 600;
  text-decoration: none;
}

.hero {
  margin-bottom: 2.25rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--gold);
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 0.5rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--ink);
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0;
  max-width: 38rem;
}

.section {
  margin: 2.25rem 0;
}

.section h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 0.85rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section h2::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  background: var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
}

.section p {
  margin: 0 0 1rem;
}

.section ul,
.section ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.section li {
  margin: 0.4rem 0;
}

.callout {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.15rem 1.35rem;
  margin: 1.25rem 0;
  box-shadow: var(--shadow);
}

.callout--discuss {
  border-left-color: var(--forest);
  background: linear-gradient(135deg, #f7faf8 0%, var(--card) 100%);
}

.callout--try {
  border-left-color: var(--amber);
  background: linear-gradient(135deg, #fdf6f0 0%, var(--card) 100%);
}

.callout h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 0.65rem;
  color: var(--ink);
}

.callout ol {
  margin: 0;
  padding-left: 1.25rem;
}

.callout li {
  margin: 0.5rem 0;
}

blockquote {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--gold);
  background: rgba(184, 134, 11, 0.08);
  font-style: italic;
  color: var(--ink-soft);
}

blockquote p {
  margin: 0.35rem 0;
}

.example-block {
  margin: 1.75rem 0;
}

.example-label {
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0 0 0.45rem;
  color: var(--ink);
}

.example-label a {
  font-weight: 500;
  font-size: 0.82rem;
  margin-left: 0.4rem;
}

.code-wrap {
  position: relative;
  margin: 0 0 0.5rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #2a2520;
  box-shadow: var(--shadow);
}

.code-wrap pre {
  margin: 0;
  padding: 0;
  overflow-x: auto;
  background: var(--code-bg);
}

.code-wrap pre code {
  display: block;
  padding: 1rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--code-fg);
  tab-size: 4;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font: inherit;
  font-size: 0.72rem;
  padding: 0.3rem 0.55rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.45);
  color: #eee;
  cursor: pointer;
}

.copy-btn:hover {
  background: rgba(184, 134, 11, 0.85);
}

.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  margin: 1rem 0 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.file-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.file-list a {
  display: block;
  padding: 0.45rem 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.file-list a:hover {
  border-color: var(--gold);
  background: #fffbf0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.15rem;
  border-radius: 8px;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

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

.btn-primary {
  background: var(--ink);
  color: var(--cream);
}

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

.btn-secondary {
  background: var(--card);
  color: var(--ink);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--ink);
}

/* Hub / index */
.hub-hero {
  text-align: left;
  margin-bottom: 2.5rem;
}

.hub-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin: 0 0 0.75rem;
  line-height: 1.15;
}

.hub-hero .lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 36rem;
  margin: 0 0 1.25rem;
}

.module-grid {
  display: grid;
  gap: 0.85rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.module-card-link {
  display: block;
  padding: 1.1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.module-card-link:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  color: inherit;
}

.module-card-link .num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
}

.module-card-link h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0.25rem 0 0.4rem;
  color: var(--ink);
}

.module-card-link h2::before {
  display: none;
}

.module-card-link p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--border);
}

.site-footer a {
  font-weight: 600;
}

.setup-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0 2rem;
  box-shadow: var(--shadow);
}

.setup-box h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.65rem;
}

.setup-box h2::before {
  display: none;
}

.setup-box ul {
  margin: 0;
  padding-left: 1.25rem;
}

/* Override highlight.js light theme when using dark code bg */
.code-wrap .hljs {
  background: transparent;
  color: var(--code-fg);
  padding: 1rem 1.15rem;
}

/* Original lesson art — friendly visual pauses beside the code. */
.inline-illustration {
  margin: 1.5rem 0 2rem;
  padding: 0.7rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.inline-illustration img {
  display: block;
  width: 100%;
  max-height: 22rem;
  object-fit: cover;
  border-radius: 6px;
}

.inline-illustration figcaption {
  padding: 0.55rem 0.3rem 0.05rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.inline-illustration--portrait {
  float: right;
  width: min(42%, 15rem);
  margin: 0.3rem 0 1rem 1.25rem;
}

.inline-illustration--portrait img {
  max-height: none;
  object-fit: contain;
}

.character-roster {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.75rem 0 2.25rem;
}

.character-card {
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.character-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 32%;
}

.character-card div {
  padding: 0.8rem 0.95rem 0.95rem;
}

.character-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
}

.character-card p {
  margin: 0.25rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.character-card--cat img {
  object-position: 70% center;
}

@media (max-width: 34rem) {
  .character-roster { grid-template-columns: 1fr; }
  .inline-illustration img { max-height: 17rem; }
  .inline-illustration--portrait { float: none; width: auto; margin: 1rem 0; }
}

/* —— Mini-games —— */
.game-page {
  max-width: 52rem;
}

.games-grid {
  display: grid;
  gap: 0.85rem;
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
}

@media (min-width: 40rem) {
  .games-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.game-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.15rem 1.2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.game-card-link:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  color: inherit;
}

.game-card-link .num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
}

.game-card-link h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0.35rem 0 0.4rem;
  color: var(--ink);
}

.game-card-link h2::before {
  display: none;
}

.game-card-link p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
  flex: 1;
}

.game-shell {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem 1.25rem;
  box-shadow: var(--shadow);
  margin: 0 0 1.25rem;
}

.game-hud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
  color: var(--ink-soft);
}

.game-hud strong {
  color: var(--ink);
}

.mystery-layout {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 48rem) {
  .mystery-layout {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

.mystery-scene h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}

.mystery-scene h2::before {
  display: none;
}

.mystery-text {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.mystery-choices {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.choice-btn {
  font: inherit;
  text-align: left;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--cream);
  color: var(--ink);
  cursor: pointer;
}

.choice-btn:hover {
  border-color: var(--gold);
  background: #fffbf0;
}

.mystery-side h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.evidence-list,
.suspect-list {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
  font-size: 0.92rem;
}

.evidence-list .muted {
  list-style: none;
  margin-left: -1.15rem;
  color: var(--ink-soft);
}

.mystery-side .btn {
  width: 100%;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.accuse-panel {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px dashed var(--gold);
  border-radius: var(--radius);
  background: #fffbf0;
}

.game-end {
  margin: 1rem 0 0;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  font-weight: 600;
}

.game-end--win {
  background: #e8f5ee;
  border: 1px solid #8fbc9a;
  color: var(--forest);
}

.game-end--lose {
  background: #fdf0ea;
  border: 1px solid #e0a890;
  color: #6b2e1a;
}

.game-shell--canvas {
  position: relative;
  padding-bottom: 1rem;
}

.game-shell--canvas canvas {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 0 auto;
  border-radius: 8px;
  border: 1px solid #2a2520;
  background: #0f1419;
  touch-action: none;
}

.game-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 0.85rem;
}

.game-touch-controls {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.game-touch-controls button {
  min-width: 3rem;
  min-height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--parchment);
  color: var(--ink);
  font: 700 1.1rem var(--font-body);
  touch-action: manipulation;
}

.game-touch-controls button:active {
  background: var(--gold-bright);
  transform: translateY(1px);
}

@media (min-width: 48rem) {
  .game-touch-controls { display: none; }
}

.game-keys {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.game-keys kbd {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  margin: 0 0.1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.canvas-overlay {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: 0.75rem 1.25rem;
  background: rgba(26, 22, 18, 0.85);
  color: var(--cream);
  border-radius: 8px;
  text-align: center;
  max-width: 90%;
  pointer-events: none;
  font-weight: 600;
}

.game-hint {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin: 0 0 2rem;
}

/* Browser Python playground */
.playground {
  padding: 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.playground-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.playground-topline h2 { margin: 0; font-family: var(--font-display); font-size: 1.2rem; }
.playground-topline label { font-weight: 600; color: var(--ink-soft); }
.playground-topline select { margin-left: 0.35rem; font: inherit; padding: 0.3rem; border: 1px solid var(--border); border-radius: 5px; background: var(--cream); }
.playground-label { display: block; margin: 0 0 0.35rem; font-weight: 700; color: var(--ink-soft); }

#python-code,
.python-output {
  width: 100%;
  min-height: 15rem;
  margin: 0;
  padding: 0.9rem 1rem;
  border: 1px solid #352d26;
  border-radius: 7px;
  background: var(--code-bg);
  color: var(--code-fg);
  font: 0.92rem/1.55 var(--font-mono);
  tab-size: 4;
}

#python-code { resize: vertical; }
.python-output { min-height: 8rem; max-height: 16rem; overflow: auto; white-space: pre-wrap; }
.playground-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin: 0.85rem 0; }
.playground-help { margin: 0 0 1rem; font-size: 0.9rem; color: var(--ink-soft); }