/* Course platform — lesson, quiz, and landing page styles.
   Builds on the tokens defined in style.css (:root) — no new palette. */

.course-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Course landing page ---------- */

.course-hero {
  padding: 64px 0 40px;
  text-align: center;
}
.course-hero .course-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--drupal-blue);
  background: #eaf5fc;
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 16px;
}
.course-hero h1 {
  font-size: 40px;
  font-weight: 800;
  color: var(--dark);
  margin: 0 0 12px;
}
.course-hero p {
  font-size: 17px;
  color: var(--text);
  max-width: 640px;
  margin: 0 auto 28px;
  line-height: 1.6;
}
.course-hero .hero-actions { display: flex; gap: 12px; justify-content: center; }

.course-progress-box {
  max-width: 560px;
  margin: 0 auto 40px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.course-progress-box .progress-label { font-size: 13px; color: var(--text-light); font-weight: 600; }
.course-progress-box .progress-value { font-size: 15px; color: var(--dark); font-weight: 700; margin-top: 2px; }
.course-progress-box .progress-bar-track {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
}
.course-progress-box .progress-bar-fill {
  height: 100%;
  background: var(--drupal-blue);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.course-section { margin-bottom: 36px; }
.course-section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 12px;
}

.lesson-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  background: var(--white);
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.lesson-card:hover:not(.is-locked) { border-color: var(--drupal-blue); box-shadow: var(--shadow); }
.lesson-card.is-locked { opacity: 0.6; cursor: not-allowed; }
.lesson-card.is-payment-locked { opacity: 1; border-color: var(--drupal-blue); }
.lesson-card.is-payment-locked:hover { box-shadow: var(--shadow); }
.lesson-card.is-payment-locked .lesson-status { color: var(--drupal-blue); }
.lesson-card .lesson-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--drupal-blue);
  font-size: 16px;
}
.lesson-card.is-completed .lesson-icon { background: #dcfce7; color: #16a34a; }
.lesson-card .lesson-info { flex: 1; min-width: 0; }
.lesson-card .lesson-title { font-weight: 700; color: var(--dark); font-size: 15px; }
.lesson-card .lesson-desc { font-size: 13px; color: var(--text-light); margin-top: 2px; }
.lesson-card .lesson-status { flex-shrink: 0; font-size: 13px; font-weight: 600; color: var(--drupal-blue); white-space: nowrap; }
.lesson-card.is-locked .lesson-status { color: var(--text-light); }

/* ---------- Lesson page shell ---------- */

.lesson-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  min-height: 100vh;
}

.lesson-sidebar {
  border-right: 1px solid var(--border);
  padding: 24px 20px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.lesson-sidebar .sidebar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: var(--dark);
  text-decoration: none;
  margin-bottom: 20px;
}
.lesson-sidebar .sidebar-brand img { height: 22px; }
.lesson-sidebar .sidebar-progress-track {
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
  margin-bottom: 4px;
}
.lesson-sidebar .sidebar-progress-fill { height: 100%; background: var(--drupal-blue); border-radius: 3px; }
.lesson-sidebar .sidebar-progress-label { font-size: 12px; color: var(--text-light); margin-bottom: 20px; }

.sidebar-group-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-light);
  margin: 18px 0 8px;
}
.sidebar-lesson-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13.5px;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 2px;
}
.sidebar-lesson-link:hover:not(.is-locked) { background: var(--bg-light); }
.sidebar-lesson-link.is-current { background: #eaf5fc; color: var(--drupal-blue-dark); font-weight: 700; }
.sidebar-lesson-link.is-locked { color: var(--text-light); cursor: not-allowed; opacity: 0.7; }
.sidebar-lesson-link .status-icon { flex-shrink: 0; width: 16px; text-align: center; }

/* ---------- Lesson content ---------- */

.lesson-main { padding: 40px 56px 96px; max-width: 820px; }

.lesson-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
}
.lesson-nav-pill:hover { border-color: var(--drupal-blue); color: var(--drupal-blue); }
.lesson-nav-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.lesson-nav-row .lock-caption { font-size: 12px; color: var(--text-light); margin-top: 4px; text-align: right; }

.lesson-type-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--drupal-blue-dark);
  background: #eaf5fc;
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
}
.lesson-title { font-size: 32px; font-weight: 800; color: var(--dark); margin: 0 0 8px; }
.lesson-description { font-size: 16px; color: var(--text-light); margin: 0 0 32px; }

.lesson-body h2 { font-size: 22px; font-weight: 700; color: var(--dark); margin: 36px 0 14px; }
.lesson-body h3 { font-size: 17px; font-weight: 700; color: var(--dark); margin: 28px 0 10px; }
.lesson-body h4 { font-size: 15px; font-weight: 700; color: var(--dark); margin: 22px 0 8px; }
.lesson-body p { font-size: 15.5px; line-height: 1.75; color: var(--text); margin: 0 0 16px; }
.lesson-body ul, .lesson-body ol { margin: 0 0 16px; padding-left: 24px; color: var(--text); font-size: 15.5px; line-height: 1.7; }
.lesson-body li { margin-bottom: 4px; }
.lesson-body code { background: #f1f5f9; color: var(--drupal-blue-dark); padding: 2px 6px; border-radius: 4px; font-size: 0.88em; font-family: ui-monospace, 'SF Mono', Menlo, monospace; }
.lesson-body a { color: var(--drupal-blue); }

.lesson-body pre.code-block {
  background: var(--dark);
  color: #e2e8f0;
  padding: 16px 18px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0 0 20px;
  font-size: 13.5px;
  line-height: 1.6;
}
.lesson-body pre.code-block code { background: none; color: inherit; padding: 0; font-size: inherit; }

.lesson-body blockquote {
  border-left: 3px solid var(--drupal-blue);
  background: var(--bg-light);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 0 0 20px;
  font-size: 14.5px;
  color: var(--text);
}
.lesson-body blockquote.callout-warning { border-left-color: #dc2626; background: #fef2f2; }
.lesson-body blockquote.callout-tip { border-left-color: var(--drupal-blue); }

.lesson-body .table-scroll { overflow-x: auto; margin: 0 0 20px; border: 1px solid var(--border); border-radius: 8px; }
.lesson-body table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.lesson-body th, .lesson-body td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.lesson-body th { background: var(--bg-light); font-weight: 700; color: var(--dark); }
.lesson-body td { color: var(--text); }
.lesson-body tr:last-child td { border-bottom: none; }
.lesson-body td code { white-space: pre; }

.lesson-body details { border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; margin: 0 0 20px; }
.lesson-body details summary { cursor: pointer; font-weight: 600; color: var(--drupal-blue-dark); }
.lesson-body details[open] summary { margin-bottom: 10px; }
.lesson-body details > *:last-child { margin-bottom: 0; }

.lesson-body .checklist { list-style: none; padding-left: 0; }
.lesson-body .checklist li { display: flex; align-items: flex-start; gap: 8px; }
.lesson-body .checklist input { margin-top: 4px; }

/* ---------- Quiz ---------- */

.quiz-card {
  margin-top: 40px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}
.quiz-card h3.quiz-heading { display: flex; align-items: center; gap: 8px; font-size: 18px; margin: 0 0 20px; }

.quiz-question-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: 13px; color: var(--text-light); font-weight: 600; }
.quiz-progress-track { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; margin-bottom: 20px; }
.quiz-progress-fill { height: 100%; background: var(--drupal-blue); }

.quiz-question-text { font-size: 16px; font-weight: 600; color: var(--dark); margin-bottom: 16px; }

.quiz-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  font-size: 14.5px;
  color: var(--dark);
  cursor: pointer;
  margin-bottom: 10px;
}
.quiz-option:hover:not(:disabled) { border-color: var(--drupal-blue); }
.quiz-option .option-letter {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: var(--text-light);
}
.quiz-option.is-correct { border-color: #16a34a; background: #f0fdf4; }
.quiz-option.is-correct .option-letter { background: #16a34a; color: #fff; }
.quiz-option.is-incorrect { border-color: #dc2626; background: #fef2f2; }
.quiz-option.is-incorrect .option-letter { background: #dc2626; color: #fff; }
.quiz-option:disabled { cursor: default; }

.quiz-explanation {
  margin-top: 8px;
  padding: 14px 16px;
  background: var(--bg-light);
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--text);
}
.quiz-explanation strong { color: var(--dark); }

.quiz-results { text-align: center; padding: 20px 0; }
.quiz-results .score-pct { font-size: 44px; font-weight: 800; color: var(--drupal-blue); }
.quiz-results .score-label { font-size: 14px; color: var(--text-light); margin-top: 4px; }
.quiz-results .score-message { margin-top: 12px; font-size: 14px; color: var(--text); }
.quiz-results.is-failed .score-pct { color: #dc2626; }

/* ---------- Locked-lesson states ---------- */

.lock-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  max-width: 520px;
  margin: 60px auto;
}
.lock-card .lock-icon { font-size: 32px; margin-bottom: 12px; }
.lock-card h2 { font-size: 20px; color: var(--dark); margin: 0 0 8px; }
.lock-card p { font-size: 14.5px; color: var(--text-light); margin: 0 0 20px; line-height: 1.6; }

.lead-form, .magic-link-form { max-width: 420px; margin: 0 auto; text-align: left; }
.lead-form label, .magic-link-form label { display: block; font-size: 13px; font-weight: 600; color: var(--dark); margin-bottom: 6px; }
.lead-form input, .magic-link-form input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14.5px;
  margin-bottom: 16px;
  font-family: var(--font);
}
.lead-form input:focus, .magic-link-form input:focus { outline: none; border-color: var(--drupal-blue); }
.lead-form .form-note { font-size: 12px; color: var(--text-light); margin: -8px 0 16px; }
.lead-form .form-error, .magic-link-form .form-error { font-size: 13px; color: #dc2626; margin-bottom: 12px; }
.magic-link-form .form-success { font-size: 13px; color: #15803d; margin-bottom: 12px; }

.magic-link-details { max-width: 420px; margin: 20px auto 0; text-align: left; }
.magic-link-details summary { cursor: pointer; font-size: 13.5px; color: var(--drupal-blue); text-align: center; }
.magic-link-details .magic-link-form { margin-top: 14px; }

@media (max-width: 820px) {
  .lesson-shell { grid-template-columns: 1fr; }
  .lesson-sidebar { position: static; height: auto; }
  .lesson-main { padding: 32px 20px 64px; }
}