/* ==========================================================================
   Lesson Page Styles — extends unit.css
   Contrast-tuned for text on blue hero background
   ========================================================================== */

/* Sticky reading progress (unchanged) */
.lesson-page .reading-progress {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 4px;
  background: #e0e4ea;
}
.lesson-page .reading-progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #00539b, #0077cc);
  transition: width 0.15s ease;
}

/* Lesson hero — improved white-text contrast */
.lesson-page .lesson-hero {
  background: linear-gradient(135deg, #002b5c 0%, #00539b 100%);
  color: #ffffff;
  padding: 2rem 0 1.75rem;
}

.lesson-page .lesson-hero .lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

/* Badges: dark navy overlay — white text achieves ~11:1 contrast */
.lesson-page .lesson-hero .lesson-meta span {
  background: rgba(0, 20, 45, 0.45);
  color: #ffffff;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.lesson-page .lesson-hero h1 {
  font-size: clamp(1.5rem, 3.5vw, 2.125rem);
  margin: 0 0 0.5rem;
  line-height: 1.25;
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.22);
}

/* Subtitle: full white (no opacity), with subtle text-shadow */
.lesson-page .lesson-hero .lesson-subtitle {
  margin: 0;
  color: #ffffff;
  font-size: 1rem;
  line-height: 1.55;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.18);
}

/* ---------- Lesson body (unchanged) ---------- */

.lesson-page .lesson-body {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #1a1a2e;
}
.lesson-page .lesson-body h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  padding-top: 0.5rem;
  border-top: 1px solid #e0e4ea;
  color: #002b5c;
  scroll-margin-top: 3rem;
}
.lesson-page .lesson-body h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}
.lesson-page .lesson-body h3 {
  font-size: 1.1875rem;
  margin: 1.75rem 0 0.75rem;
  color: #002b5c;
}
.lesson-page .lesson-body p {
  margin: 0 0 1rem;
}
.lesson-page .lesson-body ul,
.lesson-page .lesson-body ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}
.lesson-page .lesson-body li {
  margin-bottom: 0.5rem;
}
.lesson-page .lesson-body strong {
  color: #002b5c;
}
.lesson-page .lesson-body blockquote {
  border-left: 4px solid #00539b;
  background: #f0f6fc;
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  font-style: italic;
  color: #2c3e50;
  border-radius: 0 4px 4px 0;
}
.lesson-page .lesson-body blockquote p:last-child { margin-bottom: 0; }

/* ---------- Comparison table (unchanged) ---------- */
.lesson-page .compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.9375rem;
}
.lesson-page .compare-table th,
.lesson-page .compare-table td {
  border: 1px solid #e0e4ea;
  padding: 0.75rem 1rem;
  text-align: left;
  vertical-align: top;
}
.lesson-page .compare-table thead th {
  background: #f7f9fc;
  color: #002b5c;
  font-weight: 600;
}
.lesson-page .compare-table tbody tr:nth-child(even) {
  background: #fafbfd;
}
.lesson-page .compare-table thead th.col-dependent { color: #a0442a; }
.lesson-page .compare-table thead th.col-self-directed { color: #1d6f3a; }

/* ---------- Learning cycle — darker step circles for stronger contrast ---------- */
.lesson-page .learning-cycle {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
  padding: 0;
  list-style: none;
}
.lesson-page .learning-cycle li {
  position: relative;
  background: #f7f9fc;
  border: 1px solid #d6dee8;
  border-radius: 8px;
  padding: 1rem 1rem 1rem 3rem;
  margin: 0;
  font-size: 0.9375rem;
}
.lesson-page .learning-cycle li .cycle-step {
  position: absolute;
  left: 0.75rem;
  top: 1rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: #002b5c;  /* darker than #00539b for white-number contrast */
  color: #ffffff;
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lesson-page .learning-cycle li strong {
  display: block;
  margin-bottom: 0.25rem;
  color: #002b5c;
}

/* ---------- Callouts (unchanged) ---------- */
.lesson-page .callout {
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
  font-size: 0.9375rem;
  line-height: 1.6;
}
.lesson-page .callout p:last-child { margin-bottom: 0; }
.lesson-page .callout h4 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}
.lesson-page .callout-note {
  background: #eef4fb;
  border-left: 4px solid #00539b;
  color: #1e3a5f;
}
.lesson-page .callout-tip {
  background: #eaf6ee;
  border-left: 4px solid #2e8b57;
  color: #1d4a2e;
}
.lesson-page .callout-important {
  background: #fff4e6;
  border-left: 4px solid #d17a22;
  color: #5a3a0d;
}

/* ---------- Activity boxes (unchanged) ---------- */
.lesson-page .activity-box {
  background: #f7f9fc;
  border: 1px solid #d6dee8;
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.lesson-page .activity-box h4 {
  margin: 0 0 0.75rem;
  color: #00539b;
  font-size: 1.0625rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.lesson-page .activity-box h4::before {
  content: "✎";
  font-size: 1.25rem;
}
.lesson-page .activity-box textarea,
.lesson-page .activity-box input[type="text"] {
  width: 100%;
  font: inherit;
  font-size: 0.9375rem;
  padding: 0.625rem 0.75rem;
  border: 1px solid #b8c4d0;
  border-radius: 6px;
  background: #fff;
  resize: vertical;
  margin-bottom: 0.5rem;
}
.lesson-page .activity-box textarea:focus,
.lesson-page .activity-box input[type="text"]:focus {
  outline: 2px solid #00539b;
  outline-offset: 1px;
  border-color: #00539b;
}
.lesson-page .activity-box .activity-hint {
  font-size: 0.875rem;
  color: #6b7280;
  margin: 0 0 0.75rem;
}
.lesson-page .activity-box .save-note {
  font-size: 0.8125rem;
  color: #2e8b57;
  margin: 0.25rem 0 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lesson-page .activity-box .save-note.visible { opacity: 1; }

/* ---------- Readiness self-assessment — darker selected state ---------- */
.lesson-page .readiness-assess {
  display: grid;
  gap: 1rem;
  margin: 1rem 0 1.25rem;
}
.lesson-page .readiness-item {
  background: #fff;
  border: 1px solid #d6dee8;
  border-radius: 8px;
  padding: 1rem 1.25rem;
}
.lesson-page .readiness-item h5 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  color: #002b5c;
}
.lesson-page .readiness-item p {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: #4a5568;
}
.lesson-page .readiness-scale {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  max-width: 420px;
}
.lesson-page .readiness-scale label {
  flex: 1;
  text-align: center;
  padding: 0.5rem 0;
  border: 1px solid #b8c4d0;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.15s ease;
  background: #fff;
  color: #1a1a2e;
}
.lesson-page .readiness-scale label:hover {
  border-color: #00539b;
  background: #eef4fb;
}
.lesson-page .readiness-scale input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
/* Selected state: darker blue for stronger white-text contrast */
.lesson-page .readiness-scale input[type="radio"]:checked + span,
.lesson-page .readiness-scale label:has(input:checked) {
  background: #003d73;
  color: #ffffff;
  border-color: #003d73;
  font-weight: 600;
}
.lesson-page .readiness-result {
  background: #eef4fb;
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin-top: 1rem;
  display: none;
}
.lesson-page .readiness-result.visible { display: block; }
.lesson-page .readiness-result h5 {
  margin: 0 0 0.5rem;
  color: #00539b;
  font-size: 0.9375rem;
}
.lesson-page .readiness-result ul {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
}

/* ---------- Strengths & growth checklists (unchanged) ---------- */
.lesson-page .strength-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.5rem;
  margin: 0.75rem 0 1.25rem;
  padding: 0;
  list-style: none;
}
.lesson-page .strength-list li { margin: 0; }
.lesson-page .strength-list label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  background: #fff;
  border: 1px solid #d6dee8;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9375rem;
  transition: all 0.15s ease;
}
.lesson-page .strength-list label:hover {
  border-color: #00539b;
  background: #f7f9fc;
}
.lesson-page .strength-list input[type="checkbox"] {
  margin-top: 0.25rem;
  accent-color: #00539b;
}
.lesson-page .strength-list label:has(input:checked) {
  border-color: #00539b;
  background: #eef4fb;
}

/* ---------- Goal template (unchanged) ---------- */
.lesson-page .goal-template {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  background: #fff;
  border: 1px dashed #b8c4d0;
  border-radius: 8px;
  font-size: 0.9375rem;
}
.lesson-page .goal-template .goal-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}
.lesson-page .goal-template .goal-row input[type="text"] {
  flex: 1;
  min-width: 200px;
  margin: 0;
}

/* ---------- Routine builder (unchanged) ---------- */
.lesson-page .routine-builder {
  display: grid;
  gap: 0.5rem;
  margin: 0.75rem 0;
}
.lesson-page .routine-builder label {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.75rem 1rem;
  background: #fff;
  border: 1px solid #d6dee8;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9375rem;
}
.lesson-page .routine-builder label:hover {
  border-color: #00539b;
}
.lesson-page .routine-builder input[type="checkbox"] {
  margin-top: 0.2rem;
  accent-color: #00539b;
}

/* ---------- Knowledge check (unchanged) ---------- */
.lesson-page .knowledge-check-full {
  background: #f7f9fc;
  border: 1px solid #d6dee8;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 2rem 0;
}
.lesson-page .knowledge-check-full h2 {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}
.lesson-page .quiz-intro {
  font-size: 0.9375rem;
  color: #4a5568;
  margin-bottom: 1.25rem;
}
.lesson-page .quiz-question {
  background: #fff;
  border: 1px solid #d6dee8;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.lesson-page .quiz-question .q-number {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #00539b;
}
.lesson-page .quiz-question .q-text {
  margin: 0.25rem 0 0.75rem;
  font-weight: 600;
  color: #1a1a2e;
  font-size: 1rem;
}
.lesson-page .quiz-question .q-options {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.lesson-page .quiz-question .q-options label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid #d6dee8;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9375rem;
  transition: all 0.15s ease;
}
.lesson-page .quiz-question .q-options label:hover {
  border-color: #00539b;
  background: #f0f6fc;
}
.lesson-page .quiz-question .q-options input[type="radio"] {
  margin-top: 0.2rem;
  accent-color: #00539b;
}
.lesson-page .quiz-question .q-options label.correct {
  background: #eaf6ee;
  border-color: #2e8b57;
  color: #1d4a2e;
}
.lesson-page .quiz-question .q-options label.incorrect {
  background: #fdecea;
  border-color: #c0392b;
  color: #7a1c14;
}
.lesson-page .quiz-question .q-feedback {
  margin-top: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9375rem;
  display: none;
}
.lesson-page .quiz-question .q-feedback.visible { display: block; }
.lesson-page .quiz-question .q-feedback.correct {
  background: #eaf6ee;
  color: #1d4a2e;
  border-left: 3px solid #2e8b57;
}
.lesson-page .quiz-question .q-feedback.incorrect {
  background: #fdecea;
  color: #7a1c14;
  border-left: 3px solid #c0392b;
}
.lesson-page .quiz-result {
  text-align: center;
  padding: 1.5rem;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #d6dee8;
  margin-top: 1rem;
  display: none;
}
.lesson-page .quiz-result.visible { display: block; }
.lesson-page .quiz-result .result-score {
  font-size: 2.5rem;
  font-weight: 700;
  color: #00539b;
  line-height: 1;
  margin: 0.5rem 0;
}
.lesson-page .quiz-result .result-label {
  font-size: 0.9375rem;
  color: #4a5568;
}
.lesson-page .quiz-result .result-message {
  margin: 0.75rem 0 1.25rem;
  font-size: 0.9375rem;
  color: #1a1a2e;
}
.lesson-page .quiz-result.passed .result-score { color: #2e8b57; }
.lesson-page .quiz-result.not-yet .result-score { color: #d17a22; }

/* ---------- Completion CTA (unchanged) ---------- */
.lesson-page .lesson-complete {
  background: #eaf6ee;
  border: 1px solid #a8d5b8;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 2rem 0;
  text-align: center;
}
.lesson-page .lesson-complete h2 {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
  color: #1d4a2e;
}
.lesson-page .lesson-complete p {
  font-size: 0.9375rem;
  color: #2c4a38;
  max-width: 60ch;
  margin: 0 auto 1rem;
}
.lesson-page .lesson-complete .btn {
  font-size: 1rem;
  padding: 0.75rem 1.75rem;
}
.lesson-page .lesson-complete.completed {
  background: #eef4fb;
  border-color: #b8cfe8;
}
.lesson-page .lesson-complete.completed h2 { color: #00539b; }

/* ---------- Section nav sidebar (unchanged) ---------- */
.lesson-page .sidebar-nav .section-link {
  display: block;
  font-size: 0.875rem;
  padding: 0.375rem 0.5rem;
  border-left: 2px solid transparent;
  color: #4a5568;
}
.lesson-page .sidebar-nav .section-link.active {
  color: #00539b;
  font-weight: 600;
  border-left-color: #00539b;
  background: #f0f6fc;
}

/* ---------- Responsive (unchanged) ---------- */
@media (max-width: 768px) {
  .lesson-page .lesson-hero { padding: 1.5rem 0; }
  .lesson-page .readiness-scale { max-width: none; }
  .lesson-page .readiness-scale label { padding: 0.5rem 0.25rem; font-size: 0.8125rem; }
  .lesson-page .learning-cycle { grid-template-columns: 1fr; }
  .lesson-page .compare-table { font-size: 0.875rem; }
  .lesson-page .compare-table th,
  .lesson-page .compare-table td { padding: 0.5rem 0.625rem; }
}