/* Learn Section Base Styles - Shared across all course modules */

:root {
  --learn-sidebar-width: 280px;
  --learn-content-max-width: 720px;
  --learn-module-spacing: 2rem;

  /* Variable mappings to theme-light.css */
  --text-primary: var(--clr-ink);
  --text-secondary: var(--clr-ink-light);
  --text-tertiary: var(--clr-ink-light);
  --bg-primary: var(--clr-surface);
  --bg-secondary: var(--clr-surface-alt);
  --bg-tertiary: var(--clr-lavender);
  --bg-hover: var(--clr-lavender);
  --accent: var(--clr-indigo);
  --accent-light: var(--clr-purple-light);
  --accent-dark: var(--clr-indigo-dark);
  --border-light: var(--clr-border);
}

/* Layout Structure - Now using standard grid */
/* Removed .learn-container as we're using standard grid layout */

/* Specific styling for learn content area */
.content.learn-content {
  max-width: none; /* Override default content max-width */
  width: 100%;
}

.content.learn-content article {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Fix first heading margin */
.content.learn-content article > h1:first-child {
  margin-top: 0;
}

/* Module Navigation Sidebar - Styled as sidebar */
.sidebar.module-nav {
  /* Inherits sidebar styles from layout.css */
  /* Additional module-specific styles */
  position: sticky;
  top: 80px; /* Account for header */
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.sidebar.module-nav h2 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: var(--clr-ink);
  font-weight: 600;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--clr-border);
}

.module-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar.module-nav .module-list li {
  margin-bottom: 0.5rem;
  margin-left: 0; /* Override base.css list margins */
  padding-left: 0; /* Override base.css list padding */
}

.module-list a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background-color 0.2s;
}

.module-num {
  display: inline-flex;
  width: 1.5rem;
  height: 1.5rem;
  align-items: center;
  justify-content: center;
  background: var(--clr-indigo);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.module-title {
  flex: 1;
}

.module-list a:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.module-list a.current {
  background-color: var(--accent-light);
  color: var(--accent);
  font-weight: 500;
}

/* Main Content Area */
.learn-content {
  flex: 1;
  max-width: var(--learn-content-max-width);
}

/* Breadcrumb Navigation */
.breadcrumb {
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--clr-ink-light);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: none; /* Override base.css max-width */
}

.breadcrumb li {
  margin: 0; /* Override base.css margins */
  display: flex;
  align-items: center;
}

.breadcrumb li:not(:last-child)::after {
  content: "›";
  margin: 0 0.5rem;
  color: var(--clr-ink-light);
}

.breadcrumb a {
  color: var(--clr-ink-light);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--clr-indigo);
  text-decoration: underline;
}

/* Module Header */
.module-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-light);
}

.module-header h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.module-meta {
  display: flex;
  gap: 2rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Learning Objectives */
.learning-objectives {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: var(--learn-module-spacing);
}

.learning-objectives h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.learning-objectives ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.learning-objectives li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.learning-objectives li:before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Content Sections */
.module-section {
  margin-bottom: var(--learn-module-spacing);
}

.module-section h2 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.module-section h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

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

/* Self-Assessment Checklist */
.assessment-checklist {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
}

.assessment-checklist ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  transition: background-color 0.2s;
  cursor: pointer;
}

.checklist-item:hover {
  background-color: var(--bg-hover);
}

.checklist-item input[type="checkbox"] {
  margin-right: 0.75rem;
  margin-top: 0.125rem;
  cursor: pointer;
}

.checklist-item label {
  flex: 1;
  cursor: pointer;
  line-height: 1.5;
}

/* Action Framework */
.action-framework {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
  margin: 0;
}

.action-step {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 2rem;
  counter-increment: step-counter;
}

.action-step::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background-color: var(--clr-indigo);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.875rem;
  line-height: 1;
}

.action-step h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.step-why {
  font-style: italic;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}

/* Quick Reference */
.quick-reference {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-radius: 12px;
  padding: 2rem;
  margin-top: 3rem;
}

.quick-reference h2 {
  margin-bottom: 1.5rem;
}

.quick-reference ul {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 2;
  column-gap: 2rem;
}

.quick-reference li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
  break-inside: avoid;
}

.quick-reference li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Tool Application */
.tool-application {
  background-color: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 0 8px 8px 0;
}

.tool-application h2 {
  color: var(--accent-dark);
  margin-bottom: 1rem;
}

.micro-task {
  background-color: white;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
}

.micro-task strong {
  color: var(--accent);
}

/* Mini Scenarios */
.mini-scenario {
  background-color: var(--bg-tertiary);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  font-style: italic;
  border-left: 3px solid var(--accent);
}

/* Reflection Prompts */
.reflection-prompts ul {
  list-style: none;
  padding: 0;
}

.reflection-prompts li {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  position: relative;
}

.reflection-prompts li:before {
  content: "?";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Further Reading */
.further-reading ul {
  list-style: none;
  padding: 0;
}

.further-reading li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-light);
}

.further-reading li:last-child {
  border-bottom: none;
}

/* Module Navigation */
.module-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--clr-border);
}

.nav-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--clr-ink);
  font-weight: 500;
  transition: all 0.2s;
}

.nav-button:hover {
  background-color: var(--clr-lavender);
  color: var(--clr-indigo);
  text-decoration: none;
  border-color: var(--clr-indigo);
}

.nav-button.prev::before {
  content: "←";
  margin-right: 0.25rem;
}

.nav-button.next::after {
  content: "→";
  margin-left: 0.25rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .learn-container {
    flex-direction: column;
  }

  .sidebar.module-nav {
    position: relative;
    height: auto;
    margin: 0 0 2rem 0;
    padding: 1rem;
    background-color: var(--bg-light);
  }

  .breadcrumb ol {
    flex-wrap: wrap;
  }

  .quick-reference ul {
    columns: 1;
  }
}

@media (max-width: 640px) {
  .module-header h1 {
    font-size: 1.75rem;
  }

  .module-section h2 {
    font-size: 1.5rem;
  }

  .action-step {
    padding-left: 2.5rem;
  }

  .module-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* Highlight current module when .current is on li */
.module-list li.current > a {
  background-color: var(--accent-light);
  color: var(--accent);
  font-weight: 500;
}

/* Checklist Status Display */
.learn-checklist-status {
  margin-top: 1rem;
  padding: 0.75rem;
  background: var(--clr-mint);
  color: white;
  border-radius: 8px;
  display: none;
  font-weight: 500;
  text-align: center;
}

.learn-checklist-status.show {
  display: block;
}

/* Disclaimer Styles */
.learn-disclaimer {
  margin-top: 3rem;
  padding: 1rem;
  background: var(--clr-surface-alt);
  border-left: 3px solid var(--clr-highlight);
  border-radius: 0 8px 8px 0;
  font-size: 0.9rem;
  color: var(--clr-ink-light);
  font-style: italic;
}

/* Micro Task Styles */
.learn-microtask,
.micro-task {
  background-color: white;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
  border: 1px solid var(--clr-border);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.learn-microtask strong,
.micro-task strong {
  color: var(--clr-indigo);
}