/* =====================================================================
   GREEK COURSE — Shared lesson styles
   Loaded after styles.css on every greek/lesson-NN.html page.
   ===================================================================== */

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.lesson-meta .lm-num {
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.lesson-meta .lm-sep { color: var(--text-faint); }

.objectives {
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 26px;
  margin: 32px 0;
}
.objectives-heading {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.objectives ul {
  margin: 0;
  padding-left: 22px;
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-soft);
}
.objectives li { margin-bottom: 6px; }

.greek-text {
  font-family: 'Cardo', 'Source Serif 4', Georgia, serif;
  color: var(--text);
  font-size: 1.15em;
}

.greek-inline {
  font-family: 'Cardo', 'Source Serif 4', Georgia, serif;
  font-size: 1.1em;
  color: var(--text);
}

/* Paradigm tables — clean editorial style */
.paradigm {
  margin: 28px 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elevated);
  overflow: hidden;
}
.paradigm-header {
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.paradigm-title {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}
.paradigm-subtitle {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.paradigm table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'Cardo', 'Source Serif 4', Georgia, serif;
  font-size: 1.1rem;
}
.paradigm th, .paradigm td {
  padding: 12px 18px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}
.paradigm tr:last-child td { border-bottom: none; }
.paradigm th {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg);
}
.paradigm td.label {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  width: 1%;
  white-space: nowrap;
}
.paradigm td.greek {
  color: var(--text);
}
.paradigm td.gloss {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.paradigm .ending {
  color: var(--accent);
  font-weight: 700;
}

.callout {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 18px 22px;
  margin: 24px 0;
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-soft);
}
.callout.warning {
  border-left-color: var(--crimson);
}
.callout-label {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}
.callout.warning .callout-label { color: var(--crimson); }

.example-box {
  margin: 20px 0;
  padding: 18px 22px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.example-greek {
  font-family: 'Cardo', 'Source Serif 4', Georgia, serif;
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.45;
}
.example-translit {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.example-gloss {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  color: var(--text-soft);
}
.example-gloss strong { color: var(--text); }

.lesson-vocab {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 28px;
  margin: 36px 0;
}
.lesson-vocab-heading {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.lesson-vocab-heading-count {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--text-muted);
  text-transform: none;
  font-size: 0.85rem;
}
.lesson-vocab table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.96rem;
}
.lesson-vocab th, .lesson-vocab td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}
.lesson-vocab tr:last-child td { border-bottom: none; }
.lesson-vocab th {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.lesson-vocab .vocab-greek {
  font-family: 'Cardo', 'Source Serif 4', Georgia, serif;
  font-size: 1.15rem;
  color: var(--text);
  width: 1%;
  white-space: nowrap;
}
.lesson-vocab .vocab-translit {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.93rem;
  width: 1%;
  white-space: nowrap;
}
.lesson-vocab .vocab-gloss {
  font-family: 'Source Serif 4', Georgia, serif;
  color: var(--text-soft);
}
.lesson-vocab .vocab-freq {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: right;
  width: 1%;
  white-space: nowrap;
}

.exercises {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 26px 30px;
  margin: 36px 0;
}
.exercises-heading {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.exercises ol {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-soft);
  padding-left: 22px;
  margin: 0;
}
.exercises li { margin-bottom: 12px; }
.exercises li .greek-inline { font-size: 1.1em; }

/* ============================================================
   Watch section — Mounce companion video card
   ============================================================ */

.lesson-watch {
  margin: 48px 0;
}

.lesson-watch-heading {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.lesson-watch-heading::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.lesson-watch-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 28px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
  position: relative;
}
.lesson-watch-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .lesson-watch-card:hover {
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.4);
}

.lesson-watch-card-inner {
  display: flex;
  gap: 22px;
  align-items: center;
}

.lesson-watch-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--accent);
  color: var(--bg-base);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  line-height: 1;
}
.lesson-watch-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.lesson-watch-body {
  flex: 1;
  min-width: 0;
}

.lesson-watch-eyebrow {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.lesson-watch-title {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text-base);
  margin-bottom: 4px;
}

.lesson-watch-desc {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-soft);
  margin: 0;
}

.lesson-watch-arrow {
  flex-shrink: 0;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1.4rem;
  color: var(--text-muted);
  transition: color 0.18s ease, transform 0.18s ease;
}
.lesson-watch-card:hover .lesson-watch-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

.lesson-watch-source {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-style: italic;
}

/* ============================================================
   Watch — embedded iframe variant (replaces the link card)
   ============================================================ */

.lesson-watch-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect */
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  background: #000;
  border: 1px solid var(--border);
}
.lesson-watch-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.lesson-watch-caption {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.85rem;
  color: var(--text-soft);
  margin-top: 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.lesson-watch-caption .ch-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}
.lesson-watch-caption .ch-title {
  font-weight: 500;
  color: var(--text-base);
}
.lesson-watch-caption .ch-link {
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-left: auto;
}
.lesson-watch-caption .ch-link a {
  color: var(--text-muted);
  border-bottom: 1px dotted var(--rule);
  text-decoration: none;
}
.lesson-watch-caption .ch-link a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.lesson-watch-note {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.92rem;
  font-style: italic;
  color: var(--text-muted);
  margin: 8px 0 0;
  line-height: 1.5;
}

/* ============================================================
   Watch — click-to-load YouTube thumbnail (replaces iframe)
   ============================================================ */

.lesson-watch-thumb {
  position: relative;
  display: block;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect */
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  background: #000;
  border: 1px solid var(--border);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.lesson-watch-thumb:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  border-color: var(--accent);
}
[data-theme="dark"] .lesson-watch-thumb:hover {
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
}

.lesson-watch-thumb img {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease, filter 0.18s ease;
}
.lesson-watch-thumb:hover img {
  transform: scale(1.02);
  filter: brightness(0.85);
}

.lesson-watch-thumb-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.lesson-watch-thumb-play {
  width: 88px;
  height: 62px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s ease, transform 0.18s ease;
}
.lesson-watch-thumb:hover .lesson-watch-thumb-play {
  background: #ff0000; /* YouTube red on hover */
  transform: scale(1.08);
}
.lesson-watch-thumb-play svg {
  width: 32px;
  height: 32px;
  fill: #fff;
  margin-left: 4px; /* visually center the triangle */
}

.lesson-watch-thumb-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border-radius: 4px;
}

/* ============================================================
   Watch — custom SVG thumbnail variant
   ============================================================ */

.lesson-watch-thumb svg.thumb-art {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.4s ease, filter 0.18s ease;
}
.lesson-watch-thumb:hover svg.thumb-art {
  transform: scale(1.02);
  filter: brightness(0.92);
}

/* Light theme palette for SVG art */
.thumb-art .bg-base   { fill: #f4f0e6; }   /* warm parchment */
.thumb-art .bg-band   { fill: #e8e0cf; }   /* deeper parchment band */
.thumb-art .ink-base  { fill: #1a2540; }   /* deep ink */
.thumb-art .ink-soft  { fill: #4a5575; }   /* soft ink */
.thumb-art .accent    { fill: #b8945a; }   /* warm gold */
.thumb-art .stroke-rule { stroke: #c0b596; stroke-width: 1; fill: none; }

/* Dark theme palette swap */
[data-theme="dark"] .thumb-art .bg-base   { fill: #1a1f30; }
[data-theme="dark"] .thumb-art .bg-band   { fill: #232940; }
[data-theme="dark"] .thumb-art .ink-base  { fill: #e8ecf5; }
[data-theme="dark"] .thumb-art .ink-soft  { fill: #8da7d8; }
[data-theme="dark"] .thumb-art .accent    { fill: #c9a96a; }
[data-theme="dark"] .thumb-art .stroke-rule { stroke: #3a4258; }


/* ============================================================
   Practice / drill UI
   ============================================================ */

.drill-container {
  margin: 28px 0;
}

.drill {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 26px 30px 22px;
}

.drill-header {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-bottom: 14px;
}
.drill-eyebrow {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  width: 100%;
}
.drill-title {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-base);
  flex: 1;
}
.drill-score {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.drill-bar-wrap {
  height: 4px;
  background: var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 22px;
}
.drill-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.4s ease;
}

.drill-body {
  min-height: 200px;
  display: flex;
  flex-direction: column;
}

.drill-prompt-wrap {
  margin-bottom: 22px;
}
.drill-prompt-context {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.92rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.drill-prompt-q {
  font-family: 'Cardo', Georgia, serif;
  font-size: 1.6rem;
  color: var(--text-base);
  line-height: 1.3;
}
.drill-prompt-q .greek-inline { font-size: 1em; }

.drill-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
@media (max-width: 540px) {
  .drill-choices { grid-template-columns: 1fr; }
}

.drill-choice {
  background: var(--bg-base);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  font-family: 'Cardo', Georgia, serif;
  font-size: 1.18rem;
  color: var(--text-base);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.1s ease;
}
.drill-choice:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--bg-elevated);
}
.drill-choice:active:not(:disabled) {
  transform: scale(0.99);
}
.drill-choice:disabled {
  cursor: default;
  opacity: 0.7;
}
.drill-choice.correct {
  border-color: #2d8659;
  background: rgba(45, 134, 89, 0.10);
  color: #1f5e3e;
  opacity: 1;
}
.drill-choice.incorrect {
  border-color: #b03a3a;
  background: rgba(176, 58, 58, 0.10);
  color: #8b2828;
  opacity: 1;
}
.drill-choice.reveal-correct {
  border-color: #2d8659;
  background: rgba(45, 134, 89, 0.10);
  color: #1f5e3e;
  opacity: 1;
}

[data-theme="dark"] .drill-choice.correct {
  border-color: #4eaf7c;
  background: rgba(78, 175, 124, 0.16);
  color: #8be0aa;
}
[data-theme="dark"] .drill-choice.incorrect {
  border-color: #d65a5a;
  background: rgba(214, 90, 90, 0.16);
  color: #ee9999;
}
[data-theme="dark"] .drill-choice.reveal-correct {
  border-color: #4eaf7c;
  background: rgba(78, 175, 124, 0.16);
  color: #8be0aa;
}

.drill-feedback-note {
  margin-top: 16px;
  padding: 14px 16px;
  background: var(--bg-base);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-soft);
}
.drill-feedback-note .greek-inline {
  font-family: 'Cardo', Georgia, serif;
  font-size: 1.05em;
  color: var(--text-base);
}

.drill-section-note {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  font-style: italic;
  color: var(--text-soft);
  text-align: center;
  padding: 30px 12px;
}

.drill-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 18px;
  min-height: 38px;
}

.drill-next-btn {
  background: var(--accent);
  color: var(--bg-base);
  border: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}
.drill-next-btn:hover { opacity: 0.88; }
.drill-next-btn:active { transform: scale(0.98); }

.drill-complete {
  text-align: center;
  padding: 24px 12px;
}
.drill-complete-title {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.drill-complete-stats {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1.1rem;
  color: var(--text-base);
  margin-bottom: 14px;
}
.drill-complete-msg {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.98rem;
  font-style: italic;
  color: var(--text-soft);
  max-width: 460px;
  margin: 0 auto;
  line-height: 1.55;
}

.drill-error {
  padding: 14px;
  color: var(--text-muted);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.85rem;
  background: var(--bg-base);
  border: 1px dashed var(--border);
  border-radius: 6px;
}

/* Heading for the practice section in lessons */
.lesson-practice {
  margin: 48px 0;
}
.lesson-practice-heading {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.lesson-practice-heading::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}
.lesson-practice-intro {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  font-style: italic;
  color: var(--text-soft);
  margin: 0 0 24px;
  line-height: 1.55;
}