/* ============================================================
   Caerus Latin — navy/gold commercial theme
   Mobile-first, Playfair Display headings, EB Garamond body
   ============================================================ */

/* --- Custom Properties --- */
:root {
  /* Palette */
  --color-parchment: #faf8f3;
  --color-parchment-dark: #f0ede4;
  --color-terracotta: #1a2744;
  --color-terracotta-dark: #0f1729;
  --color-stone: #1a2744;
  --color-stone-light: #4a5568;
  --color-border: #c9a84c;

  /* Typography */
  --font-body: 'EB Garamond', Georgia, serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-size-base: 1.1rem;
  --line-height-base: 1.65;

  /* Aliases */
  --color-ink: var(--color-stone);
  --font-latin: var(--font-body);
}

h1, h2, h3 {
  font-family: var(--font-display);
}

/* --- Reset --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Base --- */
body {
  background-color: var(--color-parchment);
  color: var(--color-stone);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  min-height: 100vh;
}

/* --- Site Header --- */
.site-header {
  background-color: var(--color-terracotta);
  color: var(--color-parchment);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem;
  height: 56px;
}

/* --- Site Title / Logo --- */
.site-title {
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-parchment);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-title:hover {
  color: var(--color-parchment-dark);
}

/* --- Hamburger Button --- */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0 11px;
  /* ensure 44px touch target */
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-parchment);
  outline-offset: 2px;
  border-radius: 2px;
}

.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-parchment);
  border-radius: 1px;
}

/* --- Mobile Navigation (hidden by default) --- */
.site-nav {
  display: none;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  background-color: var(--color-terracotta-dark);
  z-index: 99;
}

.site-nav.open {
  display: block;
}

.site-nav ul {
  list-style: none;
  padding: 0;
}

.site-nav li a {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--color-parchment);
  text-decoration: none;
  font-size: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color 0.15s ease;
}

.site-nav li a:hover,
.site-nav li a:focus {
  background-color: var(--color-terracotta);
  color: var(--color-parchment);
}

/* --- Desktop Navigation (768px+) --- */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block;
    position: static;
    background: transparent;
    z-index: auto;
  }

  .site-nav ul {
    display: flex;
    flex-direction: row;
    gap: 0;
  }

  .site-nav li a {
    padding: 0.5rem 1rem;
    border-bottom: none;
    font-size: 1rem;
  }

  .site-nav li a:hover,
  .site-nav li a:focus {
    background-color: rgba(0, 0, 0, 0.15);
    color: var(--color-parchment);
  }
}

/* --- Main Content Area --- */
main#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* --- Hero Section --- */
.hero {
  text-align: center;
  padding: 2rem 0;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-terracotta);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-stone-light);
  font-style: italic;
}

/* --- Home Navigation Grid --- */
.home-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

/* --- Navigation Cards --- */
.nav-card {
  display: block;
  background-color: var(--color-parchment-dark);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.25rem;
  text-decoration: none;
  color: var(--color-stone);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-card:hover,
.nav-card:focus {
  border-color: var(--color-terracotta);
  color: var(--color-stone);
  box-shadow: 0 2px 8px rgba(181, 69, 27, 0.15);
  outline: none;
}

.nav-card h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-terracotta);
  margin-bottom: 0.25rem;
}

.nav-card p {
  font-size: 0.95rem;
  color: var(--color-stone-light);
  margin: 0;
  line-height: 1.4;
}

/* --- General Typography --- */
h2 {
  font-size: 1.5rem;
  color: var(--color-terracotta);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.25rem;
  color: var(--color-stone);
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-terracotta);
  text-decoration: underline;
}

a:hover {
  color: var(--color-terracotta-dark);
}

/* --- Site Footer --- */
.site-footer {
  background-color: var(--color-parchment-dark);
  border-top: 1px solid var(--color-border);
  padding: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-stone-light);
  margin-top: 3rem;
}

/* --- Utility --- */

/* Macron characters inherit body font — renders correctly via EB Garamond */
/* ā ē ī ō ū — these display correctly at font-size-base */

/* ============================================
   Grammar and Vocabulary Tables — Phase 2
   ============================================ */

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 1.5rem;
}

.grammar-table {
  width: 100%;
  min-width: 360px;
  border-collapse: collapse;
  font-size: 1rem;
}

.grammar-table th,
.grammar-table td {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.grammar-table th {
  background-color: var(--color-parchment-dark);
  color: var(--color-stone);
  font-weight: 700;
}

.grammar-table .case-label {
  font-style: italic;
  color: var(--color-stone-light);
}

.grammar-section {
  margin-bottom: 2.5rem;
}

.grammar-example {
  font-style: italic;
  margin-bottom: 0.75rem;
  color: var(--color-stone-light);
  font-size: 0.95rem;
}

.tense-label {
  margin: 0.75rem 0 0.25rem;
  font-size: 0.95rem;
  text-transform: capitalize;
  color: var(--color-terracotta);
}

.error {
  color: var(--color-terracotta);
  font-style: italic;
  padding: 1rem 0;
}

/* ============================================
   Vocabulary List — Phase 2
   ============================================ */

.vocab-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  background-color: var(--color-parchment);
  margin-bottom: 1.5rem;
  padding: 0.75rem 0 1rem;
  border-bottom: 1px solid var(--color-border);
}

.vocab-filter-label {
  width: 100%;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink);
  opacity: 0.45;
  margin-top: 0.5rem;
}

.vocab-filter-label:first-child {
  margin-top: 0;
}

.vocab-filter-link {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--color-terracotta);
  border-radius: 2rem;
  color: var(--color-terracotta);
  text-decoration: none;
  font-size: 0.875rem;
  transition: background-color 0.15s, color 0.15s;
}

.vocab-filter-link:hover,
.vocab-filter-link.active {
  background-color: var(--color-terracotta);
  color: var(--color-parchment);
}

.vocab-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.vocab-item {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.25rem 1rem;
  padding: 0.625rem 0.75rem;
  background-color: var(--color-parchment-dark);
  border-left: 3px solid var(--color-terracotta);
  border-radius: 2px;
}

@media (max-width: 480px) {
  .vocab-item {
    grid-template-columns: 1fr;
  }
}

.vocab-latin {
  font-weight: 700;
  font-size: 1.05rem;
}

.vocab-english {
  color: var(--color-stone);
}

.vocab-meta {
  font-size: 0.8rem;
  color: var(--color-stone-light);
  font-style: italic;
  white-space: nowrap;
}

.vocab-count {
  font-size: 0.875rem;
  color: var(--color-stone-light);
  margin-bottom: 1rem;
}

.vocab-empty {
  font-style: italic;
  color: var(--color-stone-light);
  padding: 1rem 0;
}

/* ============================================
   Exercises — Phase 3
   ============================================ */

.ex-mastery-strip {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
}

.ex-mastery-new     { color: var(--color-stone); }
.ex-mastery-learning { color: var(--color-terracotta); font-weight: 600; }
.ex-mastery-done    { color: #2a7a2a; font-weight: 600; }

/* Hub grid */
.ex-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.ex-hub-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-ink);
  transition: box-shadow 0.15s, transform 0.1s;
}

.ex-hub-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  transform: translateY(-2px);
}

.ex-hub-icon  { font-size: 1.1rem; font-weight: 700; color: var(--color-terracotta); }
.ex-hub-title { font-weight: 700; font-size: 1rem; }
.ex-hub-desc  { font-size: 0.8rem; color: var(--color-stone-light); line-height: 1.4; }
.ex-hub-ce    { font-size: 0.7rem; color: var(--color-terracotta); font-style: italic; margin-top: 0.25rem; }

/* Shared activity UI */
.ex-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
}

.ex-header h1 { margin: 0; }

.ex-progress {
  font-size: 0.85rem;
  color: var(--color-stone-light);
  margin: 0;
}

.ex-ce-label {
  font-size: 0.75rem;
  color: var(--color-terracotta);
  font-style: italic;
  margin-bottom: 1rem;
}

.ex-filter-badge {
  display: inline-block;
  font-size: 0.75rem;
  background: var(--color-terracotta);
  color: var(--color-parchment);
  padding: 0.15rem 0.6rem;
  border-radius: 2rem;
  margin-bottom: 0.75rem;
}

.ex-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

/* Flashcard */
.flashcard-latin   { display: block; font-size: 2rem; font-weight: 700; margin-bottom: 0.5rem; }
.flashcard-genitive { display: block; font-size: 1rem; color: var(--color-stone-light); margin-bottom: 1rem; }
.flashcard-english { display: block; font-size: 1.5rem; font-weight: 600; margin-bottom: 0.5rem; }
.flashcard-meta    { display: block; font-size: 0.85rem; color: var(--color-stone-light); }

.flashcard .flashcard-back { display: none; }
.flashcard.revealed .flashcard-front .flashcard-reveal-btn { display: none; }
.flashcard.revealed .flashcard-back { display: block; }

.ex-ratings {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.btn-rating { padding: 0.6rem 1.2rem; border: none; border-radius: 6px; cursor: pointer; font-size: 0.95rem; font-family: inherit; font-weight: 600; }
.btn-rating-no    { background: #f0e0e0; color: #8b1a1a; }
.btn-rating-maybe { background: #f5f0e0; color: #7a6000; }
.btn-rating-yes   { background: #e0f0e0; color: #1a6b1a; }

.btn-rating-no:hover    { background: #e8c8c8; }
.btn-rating-maybe:hover { background: #ede8d0; }
.btn-rating-yes:hover   { background: #c8e8c8; }

/* MCQ options */
.ex-prompt {
  padding: 1.5rem;
  text-align: center;
}
.ex-prompt-latin   { display: block; font-size: 2rem; font-weight: 700; }
.ex-prompt-genitive { display: block; font-size: 0.9rem; color: var(--color-stone-light); margin-top: 0.25rem; }
.ex-prompt-english { display: block; font-size: 1.5rem; font-weight: 600; }

.ex-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.ex-option-btn {
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, background 0.15s;
}

.ex-option-btn:hover:not(:disabled) { border-color: var(--color-terracotta); background: var(--color-parchment); }
.ex-option-btn.correct  { border-color: #2a7a2a; background: #e8f5e8; color: #1a5a1a; }
.ex-option-btn.wrong    { border-color: #8b1a1a; background: #f5e8e8; color: #6b1a1a; }
.ex-option-btn.neutral  { opacity: 0.5; }

.ex-feedback {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
}
.ex-feedback-positive { background: #e8f5e8; color: #1a5a1a; border-left: 4px solid #2a7a2a; }
.ex-feedback-negative { background: #f5e8e8; color: #6b1a1a; border-left: 4px solid #8b1a1a; }
.ex-feedback-neutral  { background: #f5f0e0; color: #5a4a00; border-left: 4px solid #b8a000; }

.ex-next-btn { width: 100%; margin-bottom: 1rem; }
.ex-score-big { font-size: 2.5rem; font-weight: 700; text-align: center; margin: 1rem 0; }

.ex-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Button styles */
.btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  background: var(--color-terracotta);
  color: var(--color-parchment);
  text-decoration: none;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s;
}
.btn:hover { background: var(--color-terracotta-dark); color: var(--color-parchment); }
.btn-secondary {
  background: transparent;
  color: var(--color-terracotta);
  border: 2px solid var(--color-terracotta);
}
.btn-secondary:hover { background: var(--color-parchment); color: var(--color-terracotta); }

/* ============================================
   Grammar Activities — Phase 3 Plan 03-02
   Case Identifier, Verb Parser, Paradigm Check
   ============================================ */

/* Loading state */
.ex-loading {
  font-style: italic;
  color: var(--color-stone-light);
  padding: 2rem 0;
  text-align: center;
}

/* Context line (declension name, verb context) */
.ex-context {
  font-size: 0.9rem;
  color: var(--color-stone-light);
  font-style: italic;
  margin-bottom: 0.5rem;
}

/* Large Latin form display inside question card */
.ex-form-display {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-terracotta);
  text-align: center;
  margin: 0.75rem 0 0.5rem;
  letter-spacing: 0.01em;
}

/* Singular / Plural hint */
.ex-number-hint {
  font-size: 0.85rem;
  color: var(--color-stone-light);
  text-align: center;
  margin-bottom: 0.5rem;
  font-style: italic;
}

/* Prompt text inside the card */
.ex-card .ex-prompt {
  font-size: 1rem;
  color: var(--color-stone);
  text-align: center;
  margin-top: 0.5rem;
  margin-bottom: 0;
}

/* Wide single-column options for long verb parsing labels */
.ex-options-wide {
  grid-template-columns: 1fr;
}

/* Feedback sub-elements */
.ex-feedback-result {
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.ex-feedback-explanation {
  margin-bottom: 0.4rem;
}

.ex-feedback-note {
  font-style: italic;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

/* Summary wrapper */
.ex-summary {
  text-align: center;
  padding: 1.5rem 0;
}

/* ---- Paradigm table specifics ---- */

/* The "?" button inside a blanked cell */
.paradigm-blank-btn {
  display: inline-block;
  width: 2.2rem;
  height: 2.2rem;
  background: var(--color-parchment-dark);
  border: 2px dashed var(--color-terracotta);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-terracotta);
  cursor: pointer;
  text-align: center;
  line-height: 1;
  transition: background 0.15s, border-color 0.15s;
}

.paradigm-blank-btn:hover {
  background: var(--color-terracotta);
  color: var(--color-parchment);
  border-color: var(--color-terracotta);
}

/* Filled cell states */
.paradigm-cell-correct {
  background-color: #e8f5e8 !important;
  color: #1a5a1a;
  font-weight: 600;
}

.paradigm-cell-wrong {
  background-color: #f5e8e8 !important;
  color: #6b1a1a;
  font-weight: 600;
}

/* Options panel that appears below the table */
.paradigm-options-panel {
  background: var(--color-parchment-dark);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
  animation: slideIn 0.15s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Exercise Activities — Phase 3 (03-03 additions)
   ============================================ */

/* ex-btn / ex-btn-primary / ex-btn-secondary — aliases for .btn */
.ex-btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  background: var(--color-terracotta);
  color: var(--color-parchment);
  text-decoration: none;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s;
}
.ex-btn:hover { background: var(--color-terracotta-dark); color: var(--color-parchment); }

.ex-btn-primary { background: var(--color-terracotta); color: var(--color-parchment); }
.ex-btn-primary:hover { background: var(--color-terracotta-dark); color: var(--color-parchment); }

.ex-btn-secondary {
  background: transparent;
  color: var(--color-terracotta);
  border: 2px solid var(--color-terracotta);
}
.ex-btn-secondary:hover { background: var(--color-parchment); color: var(--color-terracotta); }

/* Summary layout helpers */
.ex-summary-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.ex-summary-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Back link in activity header */
.ex-back {
  font-size: 0.9rem;
  color: var(--color-terracotta);
  text-decoration: none;
}
.ex-back:hover { text-decoration: underline; }

/* Matching Pairs */
.pairs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin: 1rem 0;
}

.pairs-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pair-btn {
  width: 100%;
  padding: 0.6rem 0.5rem;
  background-color: var(--color-parchment-dark);
  border: 2px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-stone);
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
  text-align: center;
}

.pair-btn.selected {
  border-color: var(--color-terracotta);
  background-color: rgba(181, 69, 27, 0.08);
}

.pair-btn.matched {
  border-color: #3a7a3a;
  background-color: rgba(58, 122, 58, 0.12);
  color: #2a5a2a;
  cursor: default;
}

.pair-btn.wrong {
  border-color: var(--color-terracotta);
  background-color: rgba(181, 69, 27, 0.12);
}

.pairs-score {
  font-size: 0.9rem;
  color: var(--color-stone-light);
  text-align: center;
  margin-top: 0.5rem;
}

.ex-topic-label {
  font-size: 0.9rem;
  color: var(--color-stone-light);
  margin-bottom: 1rem;
}

/* Gap-Fill */
.ex-sentence-card {
  background-color: var(--color-parchment-dark);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.ex-sentence {
  font-size: 1.2rem;
  font-style: italic;
  margin-bottom: 0.25rem;
}

.ex-translation-hint {
  font-size: 0.9rem;
  color: var(--color-stone-light);
  margin: 0;
}

/* Gap-fill option buttons — styled like ex-option-btn */
.ex-opt-btn {
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}

.ex-opt-btn:hover:not(:disabled) { border-color: var(--color-terracotta); background: var(--color-parchment); }
.ex-opt-btn.correct { border-color: #2a7a2a; background: #e8f5e8; color: #1a5a1a; }
.ex-opt-btn.wrong   { border-color: #8b1a1a; background: #f5e8e8; color: #6b1a1a; }

/* Gap-fill feedback text */
.fb-correct {
  font-weight: 700;
  color: #1a5a1a;
  margin-bottom: 0.4rem;
}

.fb-wrong {
  font-weight: 700;
  color: #6b1a1a;
  margin-bottom: 0.4rem;
}

.fb-explanation {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

/* ============================================
   Mastery Dashboard — Phase 3 (03-04 additions)
   ============================================ */

.dash-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1.5rem 0 1rem;
}

.dash-stat {
  text-align: center;
  padding: 0.75rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

.dash-stat--mastered { background: rgba(58, 122, 58, 0.1); border-color: #3a7a3a; }
.dash-stat--learning { background: rgba(181, 130, 27, 0.1); border-color: #b5821b; }
.dash-stat--new      { background: var(--color-parchment-dark); }

.dash-stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.dash-stat--mastered .dash-stat-num { color: #2a5a2a; }
.dash-stat--learning .dash-stat-num { color: #7a5a0a; }
.dash-stat--new      .dash-stat-num { color: var(--color-stone-light); }

.dash-stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-stone-light);
}

.dash-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 1rem 0;
}

.dash-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dash-dot.mastered { background-color: #3a7a3a; }
.dash-dot.learning { background-color: #b5821b; }
.dash-dot.new      { background-color: var(--color-border); }

.dash-dot-more {
  font-size: 0.8rem;
  color: var(--color-stone-light);
  align-self: center;
  margin-left: 4px;
}

.dash-note {
  font-style: italic;
  color: var(--color-stone-light);
  margin: 0.5rem 0 1.5rem;
  font-size: 0.95rem;
}

.dash-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ============================================
   Vocabulary Test-Yourself CTA — Phase 3 (03-04 additions)
   ============================================ */

.vocab-test-cta {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.vocab-test-btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  background-color: var(--color-terracotta);
  color: var(--color-parchment);
  border-radius: 4px;
  text-decoration: none;
  font-size: 1rem;
  transition: background-color 0.15s;
}

.vocab-test-btn:hover {
  background-color: var(--color-terracotta-dark);
  color: var(--color-parchment);
}

/* ============================================
   Grammar Quick-Check — Phase 3 (03-04 additions)
   ============================================ */

.qcheck {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background-color: var(--color-parchment-dark);
  border-left: 3px solid var(--color-terracotta);
  border-radius: 2px;
}

.qcheck-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-terracotta);
  margin-bottom: 0.4rem;
}

.qcheck-q {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.qcheck-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.qcheck-btn {
  padding: 0.4rem 0.9rem;
  background-color: var(--color-parchment);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}

.qcheck-btn:hover:not([disabled]) {
  border-color: var(--color-terracotta);
}

.qcheck-btn.qcheck-correct {
  border-color: #3a7a3a;
  background-color: rgba(58, 122, 58, 0.12);
  color: #2a5a2a;
}

.qcheck-btn.qcheck-wrong {
  border-color: var(--color-terracotta);
  background-color: rgba(181, 69, 27, 0.1);
}

.qcheck-fb {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

/* ============================================
   Exercise Hub — Sectioned layout (engagement update)
   ============================================ */

.ex-hub-section {
  margin-bottom: 2rem;
}

.ex-hub-section-head {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-border);
}

.ex-hub-section-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-terracotta);
}

.ex-hub-section-sub {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-stone-light);
}

.ex-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}

.ex-hub-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background-color: var(--color-parchment-dark);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  text-decoration: none;
  color: var(--color-stone);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.ex-hub-card:hover,
.ex-hub-card:focus {
  border-color: var(--color-terracotta);
  box-shadow: 0 2px 8px rgba(181, 69, 27, 0.12);
  outline: none;
}

.ex-hub-card--start {
  border-color: var(--color-terracotta);
  background-color: rgba(181, 69, 27, 0.04);
}

.ex-hub-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.ex-hub-body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.ex-hub-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.ex-hub-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-stone);
}

.ex-hub-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
}

.ex-hub-badge--start {
  background-color: var(--color-terracotta);
  color: var(--color-parchment);
}

.ex-hub-desc {
  font-size: 0.875rem;
  color: var(--color-stone-light);
  line-height: 1.4;
}

.ex-hub-ce {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-terracotta);
  opacity: 0.8;
}

/* ============================================
   Vocabulary Level Badges
   ============================================ */

.vocab-item {
  grid-template-columns: 1fr 1fr auto auto;
}

@media (max-width: 480px) {
  .vocab-item {
    grid-template-columns: 1fr auto;
  }
}

.vocab-level {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 2px;
  align-self: center;
  white-space: nowrap;
  min-width: 1.8rem;
  text-align: center;
}

.vocab-level--1 {
  background-color: rgba(58, 122, 58, 0.15);
  color: #2a5a2a;
  border: 1px solid rgba(58, 122, 58, 0.3);
}

.vocab-level--2 {
  background-color: rgba(181, 130, 27, 0.12);
  color: #7a5a0a;
  border: 1px solid rgba(181, 130, 27, 0.25);
}

/* ============================================
   Level Switch — Exercise hub
   ============================================ */

.ex-level-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
  padding: 0.6rem 0.75rem;
  background-color: var(--color-parchment-dark);
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.ex-level-switch-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-stone-light);
  margin-right: 0.25rem;
}

.ex-level-btn {
  padding: 0.3rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--color-stone);
  background-color: var(--color-parchment);
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.ex-level-btn:hover {
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}

.ex-level-btn.active {
  background-color: var(--color-terracotta);
  border-color: var(--color-terracotta);
  color: var(--color-parchment);
}

/* ============================================
   Grammar Quick-Check — cycling additions
   ============================================ */

.qcheck-wrapper {
  margin-top: 1.5rem;
}

.qcheck-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.qcheck-count {
  font-size: 0.75rem;
  color: var(--color-stone-light);
  font-style: italic;
}

.qcheck-next-btn {
  margin-top: 0.75rem;
  padding: 0.4rem 1rem;
  background-color: var(--color-terracotta);
  color: var(--color-parchment);
  border: none;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.15s;
}

.qcheck-next-btn:hover {
  background-color: var(--color-terracotta-dark);
}

/* ============================================
   Q4 Latin Composition activity
   ============================================ */

.q4-card {
  background: var(--color-parchment);
  border: 1px solid var(--color-stone-light);
  border-radius: 6px;
  padding: 1.25rem 1.25rem 1rem;
  margin-top: 0.75rem;
}

.q4-english {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-ink);
  margin: 0 0 1rem;
  line-height: 1.4;
}

/* Word bank */
.q4-hints {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.q4-hint-toggle {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--color-stone);
  background: none;
  border: 1px dashed var(--color-stone-light);
  border-radius: 3px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  margin-bottom: 0.75rem;
}

.q4-hint-toggle:hover {
  color: var(--color-terracotta);
  border-color: var(--color-terracotta);
}

.q4-hints-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-stone);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 0.25rem;
}

.q4-hint-chip {
  font-family: var(--font-latin);
  font-size: 0.85rem;
  background: #f0ece4;
  border: 1px solid var(--color-stone-light);
  border-radius: 3px;
  padding: 0.2rem 0.5rem;
  color: var(--color-ink);
}

/* Textarea */
.q4-textarea {
  width: 100%;
  font-family: var(--font-latin);
  font-size: 1rem;
  color: var(--color-ink);
  background: #fff;
  border: 1px solid var(--color-stone-light);
  border-radius: 4px;
  padding: 0.6rem 0.75rem;
  resize: vertical;
  box-sizing: border-box;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.q4-textarea:focus {
  outline: none;
  border-color: var(--color-terracotta);
}

/* Reveal section */
.q4-reveal {
  margin-top: 1rem;
  border-top: 1px solid var(--color-stone-light);
  padding-top: 1rem;
}

.q4-section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-stone);
  margin-bottom: 0.3rem;
}

.q4-attempt {
  margin-bottom: 1rem;
}

.q4-attempt-text {
  font-family: var(--font-latin);
  font-size: 1rem;
  color: var(--color-stone);
  margin: 0;
  font-style: italic;
}

.q4-model-wrap {
  margin-bottom: 0.75rem;
}

.q4-model-text {
  font-family: var(--font-latin);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 0.4rem;
}

.q4-notes {
  font-size: 0.85rem;
  color: var(--color-stone);
  margin: 0;
  line-height: 1.5;
}

/* Self-mark */
.q4-self-mark {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-stone-light);
}

.q4-mark-prompt {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 0.6rem;
}

.q4-mark-btns {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.q4-mark-btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.45rem 1rem;
  border: 1px solid;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.15s;
}

.q4-mark-btn:hover {
  opacity: 0.85;
}

.q4-mark-got {
  background: #2d6a2d;
  border-color: #2d6a2d;
  color: #fff;
}

.q4-mark-nearly {
  background: #b05a00;
  border-color: #b05a00;
  color: #fff;
}

.q4-mark-notyet {
  background: var(--color-stone-light);
  border-color: var(--color-stone-light);
  color: var(--color-ink);
}

/* Summary scores */
.q4-summary-scores {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0.75rem 0 1rem;
}

.q4-score {
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
}

.q4-score--got    { background: #d4edda; color: #155724; }
.q4-score--nearly { background: #fff3cd; color: #856404; }
.q4-score--notyet { background: #f8d7da; color: #721c24; }

/* ============================================================
   SW Update Banner (PWA-04)
   ============================================================ */

.update-banner {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-stone);
  color: var(--color-parchment);
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 9999;
  font-size: 0.95rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  white-space: nowrap;
}

.update-banner-btn {
  background: var(--color-terracotta);
  color: var(--color-parchment);
  border: none;
  border-radius: 4px;
  padding: 0.35rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.update-banner-btn:hover {
  background: var(--color-terracotta-dark);
}