/* ═══════════════════════════════════════════
   DESIGN TOKENS — shared with main site
═══════════════════════════════════════════ */
:root {
  --terracotta: #D4502E;
  --terracotta-light: #E8A88A;
  --navy: #3A1A08;
  --navy-soft: #6B3015;
  --cream: #F5EDE0;
  --cream-dark: #E8DCC8;
  --blue-en: #3B6FD9;
  --yellow: #F5DE1A;
  --white: #ffffff;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;
  --brick-hero: #F2E2CA;
  --brick-soft: #8B3018;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--navy);
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ═══════════════════════════════════════════
   NAV
═══════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(184, 77, 40, 0.96);
  backdrop-filter: blur(8px);
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav-logo span { color: var(--terracotta); }
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--cream);
  opacity: 0.75;
  transition: opacity 0.2s;
  letter-spacing: 0.04em;
}
.nav-links a:hover { opacity: 1; }
/* Legacy back-link (kept for safety) */
.nav-back {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cream-dark);
  letter-spacing: 0.06em;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.nav-back:hover { opacity: 1; }

/* ═══════════════════════════════════════════
   EPISODE HERO — dark, full-width, matches home
═══════════════════════════════════════════ */
.ep-hero {
  background: var(--brick-hero);
  padding: 6rem 2rem 3.5rem;
  position: relative;
  overflow: hidden;
}
.ep-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 15% 60%, rgba(212,80,46,0.10) 0%, transparent 58%),
              radial-gradient(ellipse at 85% 20%, rgba(212,80,46,0.04) 0%, transparent 45%);
  pointer-events: none;
}
.ep-hero-inner {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.ep-hero-art {
  width: 120px;
  height: 120px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 6px 24px rgba(0,0,0,0.35);
}
.ep-hero-text { flex: 1; min-width: 0; }
.ep-badges {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
}
.badge-num {
  background: var(--terracotta);
  color: var(--white);
}
.badge-level {
  background: rgba(58,26,8,0.07);
  color: var(--navy);
  border: 1px solid rgba(58,26,8,0.20);
}
.ep-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: 0.6rem;
}
.ep-hero .subtitle {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 300;
  font-style: italic;
  color: var(--terracotta);
  margin-bottom: 1rem;
}
.ep-meta-line {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--navy-soft);
  letter-spacing: 0.08em;
  opacity: 0.7;
}

/* ═══════════════════════════════════════════
   AUDIO PLAYER
═══════════════════════════════════════════ */
.audio-section {
  max-width: 720px;
  margin: 0 auto 2.5rem;
  padding: 0 2rem;
}
.listen-buttons {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0;
}
.btn-platform {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.85rem 1.7rem;
  border-radius: 8px;
  transition: opacity 0.2s;
}
.btn-platform:hover { opacity: 0.8; }
.btn-spotify  { background: #1DB954; color: #fff; }
.btn-apple    { background: #fc3c44; color: #fff; }
.btn-ivoox    { background: #EF7B27; color: #fff; }
.btn-amazon   { background: #00A8E1; color: #fff; }
/* btn-acast + btn-youtube removed */

/* ═══════════════════════════════════════════
   MAIN CONTENT
═══════════════════════════════════════════ */
.ep-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}
.ep-description {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--navy);
  margin-bottom: 2.5rem;
}
.ep-description p + p { margin-top: 1rem; }

.learn-section {
  background: var(--cream-dark);
  border-left: 4px solid var(--terracotta);
  border-radius: 0 12px 12px 0;
  padding: 1.5rem 1.8rem;
  margin-bottom: 2.5rem;
}
.learn-section h2 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 1rem;
}
.learn-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.learn-list li {
  display: flex;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.55;
}
.learn-list li::before {
  content: "→";
  color: var(--terracotta);
  font-family: var(--font-mono);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

/* ═══════════════════════════════════════════
   DOWNLOADS
═══════════════════════════════════════════ */
.downloads-section {
  margin-bottom: 3rem;
}
.downloads-section h2 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy-soft);
  margin-bottom: 1rem;
  opacity: 0.7;
}
.docs-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.btn-doc {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.7rem 1.35rem;
  border-radius: 7px;
  transition: opacity 0.2s;
}
.btn-doc:hover { opacity: 0.75; }
.btn-doc-vocab  { background: #2A5298; color: #fff; }
.btn-doc-trans  { background: #1a7a4a; color: #fff; }
.btn-doc-gram   { background: #7B3F9E; color: #fff; }
.btn-doc-trad   { background: #B85C00; color: #fff; }
.btn-doc-frase  { background: #8B0000; color: #fff; }

/* ═══════════════════════════════════════════
   EPISODE NAV (prev / next)
═══════════════════════════════════════════ */
.ep-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--cream-dark);
  padding-top: 2rem;
}
.ep-nav a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy-soft);
  opacity: 0.7;
  transition: opacity 0.2s;
}
.ep-nav a:hover { opacity: 1; }
.ep-nav .next { text-align: right; }

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer {
  background: var(--brick-soft);
  color: var(--cream-dark);
  text-align: center;
  padding: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  opacity: 0.8;
}
footer a { color: var(--terracotta); }

@media (max-width: 600px) {
  .ep-hero { padding-top: 5rem; padding-bottom: 2.5rem; }
  .ep-hero, .audio-section, .ep-content { padding-left: 1.2rem; padding-right: 1.2rem; }
  .ep-hero-inner { flex-direction: column; gap: 1rem; }
  .ep-hero-art { width: 80px; height: 80px; }
  .ep-nav { flex-direction: column; gap: 0.5rem; }
  .ep-nav .next { text-align: left; }

  /* Nav on mobile */
  .nav-links { gap: 1rem; }
  .nav-links a { font-size: 0.78rem; }

  /* PDF buttons — larger tap targets */
  .btn-doc { padding: 0.65rem 0.85rem; font-size: 0.66rem; }
  .docs-grid { gap: 0.4rem; }

  /* Audio embed removed */

  /* Content spacing */
  .ep-description { font-size: 0.98rem; }
  .learn-section { padding: 1.2rem 1.2rem; }

  /* Materials section */
  .materials-section { padding: 2.5rem 1.2rem 3rem; }
  .material-card { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .material-card-actions { flex-wrap: wrap; width: 100%; }
  .btn-mat { flex: 1; justify-content: center; min-width: 110px; }

  /* Inline sections */
  .inline-section { padding: 2.5rem 1.2rem 3rem; }

  /* Flashcard */
  .flashcard-scene { height: 300px; }
  .flashcard-scene.fc-expanded { height: 560px; }

  /* Game options — single column */
  .game-options { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   SCROLL MARGIN — compensate main nav (56px) + sticky sub-nav (40px) + buffer
═══════════════════════════════════════════════════════════ */
[id] { scroll-margin-top: 104px; }

/* ═══════════════════════════════════════════════════════════
   HERO TOC — resource index inside the episode hero
═══════════════════════════════════════════════════════════ */
.ep-toc {
  margin-top: 1.4rem;
  padding: 0.85rem 1rem;
  background: rgba(58,26,8,0.05);
  border: 1px solid rgba(58,26,8,0.14);
  border-radius: 8px;
}
.ep-toc-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(58,26,8,0.5);
  margin-bottom: 0.65rem;
}
.ep-toc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.ep-toc-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.65rem 1.15rem;
  border-radius: 7px;
  background: rgba(255,255,255,0.15);
  color: #ffffff;
  opacity: 1;
  transition: background 0.18s, transform 0.12s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.ep-toc-link:hover { background: rgba(255,255,255,0.28); transform: translateY(-1px); }
/* Color-coded by section */
.ep-toc-link[href="#materiales"]    { background: #C0392B; }
.ep-toc-link[href="#materiales"]:hover { background: #E74C3C; }
.ep-toc-link[href="#vocabulario"]   { background: #1A5276; }
.ep-toc-link[href="#vocabulario"]:hover { background: #2471A3; }
.ep-toc-link[href="#flashcards"]    { background: #1E8449; }
.ep-toc-link[href="#flashcards"]:hover { background: #27AE60; }
.ep-toc-link[href="#minijuego"]     { background: #7D3C98; }
.ep-toc-link[href="#minijuego"]:hover { background: #9B59B6; }
.ep-toc-link[href="#quiz"]          { background: #B7770D; }
.ep-toc-link[href="#quiz"]:hover { background: #D4AC0D; }
.ep-toc-link[href="#transcripcion"] { background: #2E4057; }
.ep-toc-link[href="#transcripcion"]:hover { background: #3D566E; }
.ep-toc-link[href="#gramatica"]     { background: #5B2C6F; }
.ep-toc-link[href="#gramatica"]:hover { background: #76448A; }
.ep-toc-link[href="#traduccion"]    { background: #117A65; }
.ep-toc-link[href="#traduccion"]:hover { background: #16A085; }

/* ═══════════════════════════════════════════════════════════
   STICKY SUB-NAV — resource quick-access bar
   Sticks just below the main nav (top: 56px) when scrolling.
═══════════════════════════════════════════════════════════ */
.ep-sticky-nav {
  position: sticky;
  top: 56px;
  z-index: 90;
  background: rgba(139,48,24,0.97);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(245,237,224,0.08);
  height: 40px;
  width: 100%;
}
.ep-sticky-inner {
  display: flex;
  align-items: center;
  height: 100%;
  overflow-x: auto;
  scrollbar-width: none;       /* Firefox */
  -ms-overflow-style: none;    /* IE/Edge */
  padding: 0 1rem;
}
.ep-sticky-inner::-webkit-scrollbar { display: none; }
.esnav-link {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.55;
  white-space: nowrap;
  height: 100%;
  display: inline-flex;
  align-items: center;
  padding: 0 1.1rem;
  border-right: 1px solid rgba(245,237,224,0.08);
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
}
.esnav-link:hover { opacity: 1; }
.esnav-link:last-child { border-right: none; }
.esnav-link.active { opacity: 1; color: var(--terracotta-light); }

/* ═══════════════════════════════════════════════════════════
   MATERIALS SECTION
═══════════════════════════════════════════════════════════ */
.materials-section {
  background: var(--brick-soft);
  padding: 3.5rem 2rem 4rem;
  position: relative;
}
.materials-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 82% 40%, rgba(212,80,46,0.09) 0%, transparent 55%);
  pointer-events: none;
}
.materials-inner {
  max-width: 720px;
  margin: 0 auto;
  position: relative; z-index: 1;
}
.materials-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 0.5rem;
}
.materials-heading {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 1.8rem;
}
.material-cards { display: flex; flex-direction: column; gap: 0.7rem; }
.material-card {
  background: rgba(245,237,224,0.05);
  border: 1px solid rgba(245,237,224,0.1);
  border-left: 4px solid var(--c-accent);
  border-radius: 10px;
  padding: 1.1rem 1.3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.material-card-info { flex: 1; min-width: 0; }
.material-card-info h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cream);
  margin-bottom: 0.2rem;
}
.material-card-info p { font-size: 0.8rem; color: var(--cream); opacity: 0.5; line-height: 1.4; }
.material-card-actions { display: flex; gap: 0.45rem; flex-shrink: 0; }
.btn-mat {
  display: inline-flex; align-items: center;
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.8rem 1.35rem; border-radius: 8px;
  transition: opacity 0.2s; white-space: nowrap; line-height: 1;
}
.btn-mat:hover { opacity: 0.8; }
.btn-mat-download { background: var(--c-accent); color: var(--white); }
.btn-mat-view {
  background: transparent; color: rgba(245,237,224,0.75);
  border: 1.5px solid rgba(245,237,224,0.22);
}
.btn-mat-view:hover { color: var(--cream); border-color: rgba(245,237,224,0.45); }

/* Material accent colours — set on .material-card or .inline-section */
.mat-vocab { --c-accent: #2A5298; }
.mat-trans { --c-accent: #1a7a4a; }
.mat-gram  { --c-accent: #7B3F9E; }
.mat-trad  { --c-accent: #B85C00; }
.mat-frase { --c-accent: #8B0000; }

/* ═══════════════════════════════════════════════════════════
   INLINE CONTENT SECTIONS
═══════════════════════════════════════════════════════════ */
.inline-section {
  padding: 3.5rem 2rem 4rem;
  border-top: 1px solid var(--cream-dark);
  background: var(--cream);
}
.inline-section:nth-child(even) { background: var(--white); }
.inline-section-topbar {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 720px; margin: 0 auto 1.5rem;
}
.inline-section-label {
  font-family: var(--font-mono); font-size: 0.63rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.25rem 0.65rem; border-radius: 4px;
  color: var(--white); background: var(--c-accent);
}
.back-to-top {
  font-family: var(--font-mono); font-size: 0.63rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--navy-soft); opacity: 0.55; transition: opacity 0.2s;
}
.back-to-top:hover { opacity: 1; }
.inline-section-content { max-width: 720px; margin: 0 auto; }
.inline-section-content h2 {
  font-family: var(--font-display); font-size: 1.45rem; font-weight: 700;
  color: var(--navy); margin-bottom: 0.5rem;
  padding-bottom: 0.75rem; border-bottom: 2px solid var(--cream-dark);
}
.inline-section-content .section-sub {
  font-size: 0.88rem; color: var(--navy-soft); opacity: 0.7; margin-bottom: 1.5rem;
}

/* Placeholder block */
.inline-placeholder {
  border: 2px dashed var(--cream-dark);
  border-left: 4px solid var(--c-accent);
  border-radius: 0 10px 10px 0;
  padding: 2rem 1.5rem;
  background: rgba(245,237,224,0.45);
}
.placeholder-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  background: var(--c-accent); color: var(--white);
  padding: 0.2rem 0.55rem; border-radius: 3px; margin-bottom: 0.75rem;
}
.placeholder-text {
  font-family: var(--font-mono); font-size: 0.76rem;
  color: var(--navy); opacity: 0.5; line-height: 1.7;
}

/* ───── Vocabulary table ───── */
.vocab-table {
  width: 100%; border-collapse: collapse; font-size: 0.9rem; margin-bottom: 1.5rem;
}
.vocab-table th {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--navy-soft); opacity: 0.7;
  padding: 0.6rem 0.75rem; text-align: left; border-bottom: 2px solid var(--cream-dark);
}
.vocab-table td {
  padding: 0.75rem 0.75rem; vertical-align: top;
  border-bottom: 1px solid var(--cream-dark); line-height: 1.5;
}
.vocab-table td:first-child { font-weight: 600; font-style: italic; color: var(--navy); width: 22%; }
.vocab-table td:nth-child(2) { color: var(--navy); width: 28%; }
.vocab-table td:nth-child(3) { color: var(--navy-soft); font-size: 0.83rem; }
.vocab-note {
  font-family: var(--font-mono); font-size: 0.67rem; letter-spacing: 0.04em;
  color: var(--navy); opacity: 0.55; margin-bottom: 1.5rem;
  padding: 0.65rem 1rem; background: rgba(212,80,46,0.07);
  border-radius: 6px; border-left: 3px solid var(--terracotta); line-height: 1.6;
}

/* ───── Anki button ───── */
.btn-anki {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.88rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.88rem 1.6rem; border-radius: 8px;
  background: #0076B6; color: var(--white);
  transition: opacity 0.2s; margin-bottom: 2.5rem;
}
.btn-anki:hover { opacity: 0.8; }

/* ───── Section heading for interactive blocks ───── */
.interactive-heading {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--navy-soft); opacity: 0.65;
  margin-bottom: 1rem; padding-top: 2rem;
  border-top: 1px solid var(--cream-dark);
}

/* ───── Flashcards ───── */
.flashcard-scene {
  perspective: 800px; width: 100%; max-width: 400px; height: 200px;
  margin: 0 auto 0.75rem; cursor: pointer;
}
.flashcard {
  width: 100%; height: 100%; position: relative;
  transform-style: preserve-3d; transition: transform 0.42s ease;
}
.flashcard.flipped { transform: rotateY(180deg); }
.flashcard-face {
  position: absolute; inset: 0; backface-visibility: hidden;
  background: var(--white); border: 1px solid var(--cream-dark);
  border-top: 3px solid var(--c-accent); border-radius: 12px;
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 1.5rem; gap: 0.45rem;
}
.flashcard-face.back { transform: rotateY(180deg); background: var(--navy); }
.fc-lang {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.12em;
  text-transform: uppercase; opacity: 0.38; color: var(--navy);
}
.flashcard-face.back .fc-lang { color: var(--cream); }
.fc-word { font-family: var(--font-display); font-size: 1.45rem; font-weight: 700; color: var(--navy); text-align: center; }
.flashcard-face.back .fc-word { color: var(--cream); }
.fc-example { font-size: 0.77rem; color: var(--navy-soft); opacity: 0.58; text-align: center; font-style: italic; line-height: 1.45; }
.flashcard-face.back .fc-example { color: var(--cream); opacity: 0.48; }
.flashcard-hint {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.08em;
  text-transform: uppercase; text-align: center; color: var(--navy-soft);
  opacity: 0.4; margin-bottom: 0.75rem;
}
.flashcard-controls { display: flex; justify-content: center; align-items: center; gap: 1rem; margin-bottom: 2.5rem; }
.fc-btn {
  font-family: var(--font-mono); font-size: 0.64rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.5rem 1.1rem; border-radius: 6px;
  border: 1.5px solid var(--cream-dark); background: var(--white);
  color: var(--navy); cursor: pointer; transition: background 0.15s;
}
.fc-btn:hover { background: var(--cream-dark); }
.fc-counter { font-family: var(--font-mono); font-size: 0.7rem; color: var(--navy-soft); opacity: 0.5; min-width: 3rem; text-align: center; }

/* ───── Game & Quiz ───── */
.game-prompt {
  background: var(--brick-soft); border-radius: 10px;
  padding: 1.4rem 1.5rem; text-align: center; margin-bottom: 1rem;
}
.gp-label {
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--terracotta-light); opacity: 0.7; margin-bottom: 0.45rem;
}
.gp-word { font-family: var(--font-display); font-size: 1.65rem; font-weight: 700; color: var(--cream); }
.game-options { display: grid; grid-template-columns: 1fr 1fr; gap: 0.55rem; }
.game-opt {
  padding: 0.85rem 1rem; border-radius: 8px;
  border: 1.5px solid var(--cream-dark); background: var(--white);
  font-size: 0.87rem; color: var(--navy); cursor: pointer; text-align: center;
  transition: background 0.14s, border-color 0.14s; line-height: 1.4;
}
.game-opt:hover { background: var(--cream-dark); }
.game-opt.correct { background: #e5f4ec; border-color: #1a7a4a; color: #1a7a4a; }
.game-opt.wrong   { background: #fde8e2; border-color: #B85C00; color: #B85C00; }
.game-opt.selected { border-color: var(--navy); background: var(--cream); }
.game-score { font-family: var(--font-mono); font-size: 0.68rem; color: var(--navy-soft); opacity: 0.55; text-align: right; margin-top: 0.5rem; }
.game-result {
  text-align: center; padding: 1.5rem 1rem;
  background: var(--cream); border-radius: 10px; border: 1px solid var(--cream-dark);
}
.game-result-score { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; color: var(--navy); }
.game-result-sub { font-size: 0.88rem; color: var(--navy-soft); margin: 0.35rem 0 1rem; }
.game-restart {
  font-family: var(--font-mono); font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.55rem 1.3rem; border-radius: 6px; border: none;
  background: var(--c-accent); color: var(--white); cursor: pointer; transition: opacity 0.2s;
}
.game-restart:hover { opacity: 0.8; }
.quiz-progress { font-family: var(--font-mono); font-size: 0.67rem; color: var(--navy-soft); opacity: 0.52; margin-bottom: 0.75rem; }
.quiz-submit { display: flex; justify-content: flex-end; margin-top: 0.9rem; }
.game-block, .quiz-block { margin-bottom: 0; }
.game-block + .quiz-block { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--cream-dark); }

/* ───── Rich flashcard back face ───── */
.flashcard-scene { height: 340px; transition: height 0.42s cubic-bezier(0.4,0,0.2,1); }
.flashcard-scene.fc-expanded { height: 640px; }
.flashcard-face {
  justify-content: flex-start; padding: 1.1rem 1.3rem; overflow-y: auto; gap: 0;
  -ms-overflow-style: none; scrollbar-width: thin; scrollbar-color: rgba(0,0,0,0.12) transparent;
}
.flashcard-face.front { justify-content: center; }
.fc-back-inner { display: flex; flex-direction: column; gap: 0.4rem; width: 100%; }
.fc-translation { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--cream); text-align: center; padding: 0.4rem 0 0.5rem; }
.fc-divider { border: none; border-top: 1px solid rgba(245,237,224,0.12); margin: 0.35rem 0; }
.fc-note-label {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--terracotta-light); opacity: 0.72; margin-top: 0.3rem;
}
.fc-note-text { font-size: 0.73rem; line-height: 1.5; color: rgba(245,237,224,0.75); margin-bottom: 0.2rem; }
.fc-example-pair { margin-top: 0.4rem; padding-top: 0.4rem; border-top: 1px solid rgba(245,237,224,0.08); }
.fc-ex-line { font-size: 0.72rem; font-style: italic; line-height: 1.45; }
.fc-ex-line.es { color: var(--cream); opacity: 0.85; }
.fc-ex-line.en { color: var(--cream); opacity: 0.5; }

/* ───── Game & Quiz explanation panel ───── */
.game-explain {
  margin-top: 0.85rem; padding: 1rem 1.2rem;
  background: var(--cream); border: 1px solid var(--cream-dark);
  border-left: 3px solid var(--terracotta); border-radius: 8px;
  animation: ge-in 0.25s ease;
}
@keyframes ge-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.ge-header { display: flex; align-items: baseline; gap: 0.5rem; margin-bottom: 0.5rem; }
.ge-icon { font-size: 1rem; }
.ge-correct-label { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; }
.ge-correct-label.is-ok  { color: #1a7a4a; }
.ge-correct-label.is-err { color: #B85C00; }
.ge-answer { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--navy); }
.ge-note-label {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--terracotta); font-weight: 700; margin-top: 0.6rem; margin-bottom: 0.2rem;
}
.ge-note { font-size: 0.79rem; line-height: 1.55; color: var(--navy-soft); }
.ge-examples { margin-top: 0.55rem; padding-top: 0.45rem; border-top: 1px solid var(--cream-dark); }
.ge-ex { font-size: 0.77rem; font-style: italic; color: var(--navy-soft); line-height: 1.45; }
.ge-ex + .ge-ex { opacity: 0.65; margin-top: 0.2rem; }

/* ───── Transcription / Grammar / Translation content ───── */
.ep-content-body { max-width: 640px; }
.ep-content-body h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--navy); margin: 1.5rem 0 0.4rem; }
.ep-content-body p { font-size: 0.9rem; line-height: 1.7; color: var(--navy-soft); margin: 0.5rem 0; }
.ep-content-body .ep-line { display: block; font-size: 0.88rem; color: var(--navy); line-height: 1.8; }
.ep-content-body .ep-line-en { display: block; font-size: 0.82rem; color: var(--navy-soft); opacity: 0.6; line-height: 1.5; padding-left: 0.75rem; border-left: 2px solid var(--cream-dark); margin-bottom: 0.55rem; }
.ep-content-body .ep-section { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--terracotta); font-weight: 700; margin: 2rem 0 0.75rem; }
.ep-content-body table.gram-table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.84rem; }
.ep-content-body table.gram-table th { background: var(--navy); color: var(--cream); padding: 0.5rem 0.75rem; text-align: left; font-weight: 700; font-size: 0.78rem; }
.ep-content-body table.gram-table td { padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--cream-dark); line-height: 1.45; }
.ep-content-body table.gram-table tr:nth-child(even) td { background: var(--cream); }
.ep-content-body .gram-rule { background: var(--cream); border-left: 3px solid var(--terracotta); padding: 0.75rem 1rem; border-radius: 0 6px 6px 0; font-size: 0.84rem; line-height: 1.6; margin: 1rem 0; }
.ep-content-body .gram-example { font-family: var(--font-display); font-size: 1rem; color: var(--navy); margin: 0.25rem 0; }
.ep-content-body .gram-example-en { font-size: 0.83rem; color: var(--navy-soft); opacity: 0.65; margin-bottom: 0.8rem; }
.ep-content-body .frase-pair { border-bottom: 1px solid var(--cream-dark); padding: 0.5rem 0; }
.ep-content-body .frase-es { font-size: 0.88rem; color: var(--navy); font-weight: 500; }
.ep-content-body .frase-en { font-size: 0.83rem; color: var(--navy-soft); opacity: 0.65; margin-top: 0.15rem; }

/* ═══════════════════════════════════════════════════════
   AD SLOTS — episode pages
═══════════════════════════════════════════════════════ */
.ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5f0e8;
  border: 1px dashed #c8b89a;
  border-radius: 4px;
  padding: 6px;
  margin: 0 auto;
}
.ad-slot-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: #b0a090;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  pointer-events: none;
  user-select: none;
}
/* Between-section 300×250 */
.ad-block-mid {
  padding: 2rem 2rem;
  display: flex;
  justify-content: center;
  background: var(--cream);
}
.ad-block-mid .ad-slot {
  width: 300px;
  height: 250px;
}
/* In-article responsive */
.ad-block-article {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 2rem;
}
.ad-block-article .ad-slot {
  width: 100%;
  max-width: 728px;
  height: 90px;
}
@media (max-width: 600px) {
  .ad-block-mid { padding: 1.5rem 1rem; }
  .ad-block-mid .ad-slot { width: 300px; height: 250px; }
  .ad-block-article .ad-slot { height: 60px; }
}