/* ============================================
   RITHM - Lesson Plan Styles
   ============================================ */

/* ── Summary page ── */
.lessons-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 2rem;
}

.lessons-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.lessons-header h1 {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.lessons-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 650px;
  margin: 0 auto;
}

.lessons-overview {
  padding: 1.75rem;
  margin-bottom: 2rem;
}

.lessons-overview h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.lessons-overview p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

.phase-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 1024px) {
  .phase-row {
    grid-template-columns: 1fr 1fr;
    margin-bottom: 1.5rem;
  }

  .phase-row .lesson-card {
    padding: 1rem 1.25rem;
  }

  .phase-row .lesson-info p {
    font-size: 0.8rem;
    line-height: 1.45;
  }

  .phase-row .lesson-week {
    width: 38px;
    height: 38px;
    min-width: 38px;
    font-size: 0.95rem;
  }

  .phase-row .lesson-card-progress {
    min-width: 100px;
  }
}

.phase-group {
  margin-bottom: 0;
}

.phase-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.3rem 0.875rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.875rem;
  color: #1a1714;
}

.phase-label--foundations {
  background: var(--color-primary);
}

.phase-label--building {
  background: #5ba3c9;
}

.phase-label--intermediate {
  background: var(--color-warning);
  color: #1a1714;
}

.phase-label--advanced {
  background: var(--text-secondary);
}

.phase-label--jazz {
  background: #b06ac2;
}

.phase-label--applied {
  background: #4f9f7a;
}

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

.lesson-card {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  text-decoration: none;
  transition: border-color 0.15s ease;
}

.lesson-card:hover {
  border-color: var(--color-primary);
}

.lesson-week {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  color: #1a1714;
}

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

.lesson-info h3 {
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.lesson-info p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.5;
}

.lesson-arrow {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.lesson-card:hover .lesson-arrow {
  color: var(--color-primary);
}

/* ── Individual lesson page ── */
.lesson-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 2rem;
}

.lesson-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
}

.lesson-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.15s ease;
}

.lesson-nav a:hover {
  color: var(--color-primary);
}

.lesson-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #1a1714;
  margin-bottom: 0.625rem;
}

.lesson-header {
  margin-bottom: 2rem;
}

.lesson-header h1 {
  font-size: 1.75rem;
  margin-bottom: 0.625rem;
  color: var(--text-primary);
}

.lesson-header .lesson-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.lesson-section {
  padding: 1.75rem;
  margin-bottom: 1.25rem;
}

.lesson-section h2 {
  font-size: 1.25rem;
  margin-bottom: 0.875rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lesson-section h3 {
  font-size: 1.05rem;
  margin: 1rem 0 0.5rem;
  color: var(--text-primary);
}

.lesson-section p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.lesson-section ul,
.lesson-section ol {
  color: var(--text-secondary);
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.lesson-section li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.practice-block {
  padding: 1.5rem;
  margin-top: 1.25rem;
}

.practice-block h3 {
  color: var(--text-primary);
  margin-top: 0;
  margin-bottom: 0.625rem;
  font-size: 1.05rem;
}

.practice-block p {
  color: var(--text-secondary);
  margin-bottom: 0.625rem;
}

.practice-block ul {
  color: var(--text-secondary);
  padding-left: 1.25rem;
  margin-bottom: 0.875rem;
}

.practice-block li {
  margin-bottom: 0.375rem;
}

.practice-links {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
  margin-top: 0.875rem;
}

.lesson-goals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}

.lesson-goal {
  padding: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.lesson-goal i {
  color: var(--success);
  margin-top: 0.2rem;
}

.lesson-goal span {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Bottom navigation between lessons */
.lesson-footer-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.lesson-footer-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}

.lesson-footer-nav a:hover {
  color: var(--color-primary);
  background: var(--surface-alpha);
}

.lesson-footer-nav .next-lesson {
  margin-left: auto;
}

/* ── Progress tracking: index page ── */
.lesson-card-progress {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 120px;
  flex-shrink: 0;
}

.lesson-card-progress .progress-ring {
  width: 36px;
  height: 36px;
  position: relative;
  flex-shrink: 0;
}

.lesson-card-progress .progress-ring svg {
  width: 36px;
  height: 36px;
  transform: rotate(-90deg);
}

.lesson-card-progress .progress-ring .ring-bg {
  fill: none;
  stroke: var(--border-color);
  stroke-width: 3;
}

.lesson-card-progress .progress-ring .ring-fill {
  fill: none;
  stroke: var(--success);
  stroke-width: 3;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.4s ease;
}

.lesson-card-progress .progress-ring.complete .ring-fill {
  stroke: var(--success);
}

.lesson-card-progress .progress-text {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.lesson-card-progress .progress-ring.complete + .progress-text {
  color: var(--success);
}

/* ── Progress tracking: individual lesson page ── */
.week-progress-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  padding: 0.625rem 1rem;
  background: var(--surface-alpha);
  border-radius: var(--radius-md);
}

.progress-bar-track {
  flex: 1;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
  transition: width 0.4s ease;
}

.progress-bar-text {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.week-progress-bar.progress-complete .progress-bar-fill {
  background: var(--success);
}

.week-progress-bar.progress-complete .progress-bar-text {
  color: var(--success);
}

/* Task checkbox */
.task-progress-toggle {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.task-checkbox {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
  transition: color 0.15s ease, transform 0.15s ease;
}

.task-checkbox:hover:not(:disabled) {
  color: var(--color-primary);
  transform: scale(1.15);
}

.task-checkbox:disabled {
  cursor: default;
}

.task-completed .task-checkbox {
  color: var(--success);
}

.task-completed .task-checkbox i {
  color: var(--success);
}

.task-auto .task-checkbox {
  color: var(--purple);
  cursor: default;
}

.task-auto.task-completed .task-checkbox {
  color: var(--success);
}

.auto-badge {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: rgba(138, 154, 106, 0.15);
  color: var(--olive);
}

.task-completed .auto-badge {
  background: rgba(74, 158, 104, 0.15);
  color: var(--success);
}

/* ── Auto-track sub-progress indicators ── */

.auto-sub-progress {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
  width: 100%;
}

.sub-progress-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
}

.sub-progress-label {
  flex-shrink: 0;
  width: 72px;
  color: var(--text-muted);
  font-weight: 500;
}

.sub-progress-bar-wrap {
  flex: 1;
  height: 6px;
  background: var(--surface-alpha);
  border-radius: 3px;
  overflow: hidden;
}

.sub-progress-bar {
  height: 100%;
  background: var(--purple);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.sub-progress-bar.complete {
  background: var(--success);
}

.sub-progress-value {
  flex-shrink: 0;
  width: 52px;
  text-align: right;
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
}

.sub-progress-binary {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.sub-progress-binary.done {
  color: var(--success);
}

.sub-progress-binary i {
  font-size: 0.6rem;
  margin-right: 2px;
}

.lesson-goal .task-progress-toggle {
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.task-progress-footer {
  margin-top: 0.875rem;
  padding-top: 0.625rem;
  border-top: 1px solid var(--border-color);
}

.lesson-goal.goal-completed {
  border: 1px solid rgba(74, 158, 104, 0.25);
  background: rgba(74, 158, 104, 0.05);
}

.lesson-goal.goal-completed span {
  text-decoration: line-through;
  opacity: 0.7;
}

.practice-block.activity-completed {
  border-color: rgba(74, 158, 104, 0.25);
  background: rgba(74, 158, 104, 0.05);
}

@media (max-width: 768px) {
  .phase-row {
    gap: 1.5rem;
  }

  .lesson-card {
    padding: 1rem;
  }

  .lesson-goals {
    grid-template-columns: 1fr;
  }

  .lesson-footer-nav {
    flex-direction: column;
    gap: 0.75rem;
  }

  .lesson-footer-nav .next-lesson {
    margin-left: 0;
  }

  .lesson-card-progress {
    min-width: 90px;
  }

  .lesson-card-progress .progress-ring {
    width: 30px;
    height: 30px;
  }

  .lesson-card-progress .progress-ring svg {
    width: 30px;
    height: 30px;
  }
}


/* Lesson meta badge (item 80) */
.lesson-meta-badge { display: inline-flex; align-items: center; gap: 6px; font-family: var(--stage-font-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--stage-ink-soft); border: 1px solid var(--stage-panel-deep); padding: 4px 8px; margin-top: 8px; }

/* Glossary term tooltips (item 483) */
.glossary-term { border-bottom: 1px dotted var(--stage-amber); cursor: help; }
.glossary-popover { position: absolute; z-index: 60; max-width: 260px; background: var(--stage-panel); color: var(--stage-ink); border: 1px solid #000; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); padding: 10px 12px; font-size: 12.5px; line-height: 1.45; }
.glossary-popover__term { display: block; font-family: var(--stage-font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--stage-amber); margin-bottom: 4px; }


/* ── Lesson reading tools (items 538, 543, 561, 598) ── */
.lesson-reading-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 0 0 18px; }
.lesson-reading-tools .lrt-label { font-family: var(--font-sans); font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.08em; text-transform: uppercase; }
.lesson-reading-tools .lrt-speed { background: var(--stage-panel-deep, #17130c); color: var(--text-primary); border: 1px solid #000; padding: 5px 6px; font-size: 0.8rem; }
.lesson-container.lesson-text-s .lesson-section p,
.lesson-container.lesson-text-s .lesson-section li { font-size: 0.9rem; }
.lesson-container.lesson-text-l .lesson-section p,
.lesson-container.lesson-text-l .lesson-section li { font-size: 1.15rem; line-height: 1.85; }
.lesson-container.lesson-readable .lesson-section p,
.lesson-container.lesson-readable .lesson-section li { font-family: Verdana, Geneva, 'Segoe UI', sans-serif; letter-spacing: 0.02em; }
.lesson-section .reading-aloud { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: 2px; }
.lesson-progress-bar { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: var(--color-primary); z-index: 1200; pointer-events: none; }
.lesson-resume-pill { position: fixed; right: 18px; bottom: 18px; z-index: 1200; padding: 10px 16px; border: 1px solid #000; border-radius: 999px; background: var(--color-primary); color: #1a1714; font-family: var(--font-sans); font-size: 0.85rem; font-weight: 700; cursor: pointer; box-shadow: 0 4px 18px rgba(0,0,0,0.45); }
.lesson-reading-tools [hidden] { display: none !important; }

/* Pace projection + finish-by planner (item 984) */
.pace-panel .pace-planner {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.pace-planner__input {
  margin-left: 8px;
  padding: 6px 10px;
  border: 1px solid var(--stage-panel-deep, #444);
  border-radius: 6px;
  background: var(--stage-panel, #fff);
  color: inherit;
  font: inherit;
}

.pace-planner__result {
  margin: 0;
  font-weight: 600;
}