/* =========================================
   SCM Course Global Stylesheet
   Version: 6.0 (Quiz Feedback & Module Cards)
   Author: Denise (AI UX Specialist)
   Standard: SCORM 1.2 / WCAG 2.1 AA
   ========================================= */

/* -----------------------------------------
   1. Variables & Design Tokens
   ----------------------------------------- */
:root {
  /* Brand Palette */
  --primary-color: #2c3e50;       /* Deep Navy - Headers, Primary Actions */
  --primary-accent: #3498db;      /* Bright Blue - Links, Focus */
  --secondary-bg: #f4f6f8;        /* Light Gray - Page Background */
  --surface-white: #ffffff;       /* Card Backgrounds */
  
  /* Accent Colors for Asset Types */
  --color-assessment: #16a085;    /* Teal - Skills & Case Studies */
  --color-quiz: #8e44ad;          /* Purple - Quizzes & Plans */
  --color-diagram: #d35400;       /* Orange - Diagrams */
  --color-reading: #3f51b5;       /* Indigo - Readings */

  /* Text Colors */
  --text-main: #333333;           
  --text-muted: #666666;          
  --border-color: #e1e4e8;        

  /* Status Colors */
  --success-color: #27ae60;       
  --warning-color: #f39c12;       
  --danger-color: #c0392b; 

  /* Feedback Backgrounds (Light) */
  --success-bg: #d4edda;          /* Light Green for Correct Answers */
  --success-text: #155724;        /* Dark Green Text */
  --error-bg: #f8d7da;            /* Light Red for Incorrect Answers */
  --error-text: #721c24;          /* Dark Red Text */

  /* Layout Constants */
  --container-width: 900px; 
  --header-height: 60px;
  --border-radius: 8px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
}

* {
  box-sizing: border-box;
}

/* -----------------------------------------
   2. Resets & Typography
   ----------------------------------------- */
body {
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--secondary-bg);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  font-size: 1.125rem; 
}

h1, h2, h3, h4, h5, h6 {
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 1rem;
  font-weight: 700;
}

p {
  margin-bottom: 1.5rem;
}

a {
  color: var(--primary-accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  text-decoration: underline;
  color: #1d6fa5;
}

/* --- Glossary Term Styling --- */
.glossary-trigger {
  color: var(--primary-color);
  border-bottom: 2px dotted var(--primary-accent); 
  cursor: help; 
  transition: all 0.2s ease;
}

.glossary-trigger:hover {
  color: var(--primary-accent);
  border-bottom-style: solid;
  background-color: rgba(52, 152, 219, 0.1); 
}

ul, ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* -----------------------------------------
   3. Main Layout & Structure
   ----------------------------------------- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Page Header (Breadcrumbs) */
.page-header {
  background-color: var(--surface-white);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

.breadcrumb-container {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb-pill {
  background-color: #eef1f5;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  color: var(--primary-color);
  font-weight: 500;
  font-size: 0.85rem;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}

.breadcrumb-pill:hover {
  background-color: #dbe2ef;
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb-pill--current {
  background-color: var(--primary-color);
  color: #ffffff;
}

/* Hero Title Banner */
.page-title-banner {
  background-color: var(--primary-color);
  color: #ffffff;
  padding: 3rem 0;
  margin-bottom: 2rem;
  text-align: center;
}

.page-title-banner h1 {
  color: #ffffff;
  margin: 0;
  font-size: 2.2rem;
}

/* Footer */
.page-footer {
  margin-top: 4rem;
  padding: 3rem 0;
  background-color: var(--surface-white);
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
}

/* -----------------------------------------
   4. Component: Module Blocks (Card Style)
   ----------------------------------------- */
/* The Card Container */
.module-block {
    background-color: var(--surface-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 3rem;
    overflow: hidden; /* Clips the header corners */
    display: flex;
    flex-direction: column;
}

/* The Header Section */
.section-module-block-start {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 1.5rem 2rem;
    margin: 0; 
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.section-module-block-start p {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

/* The Narrative Content Section */
.module-block .section-narrative-continue,
.module-block .module-content {
    padding: 2.5rem; 
    background-color: transparent;
}

/* Content padding for any other sections inside the block */
.module-block .content-section {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
}

/* Separator for end of block */
.section-module-block-end {
    border-top: 1px solid var(--secondary-bg);
    margin: 0 2rem;
    padding-top: 1rem;
    margin-bottom: 1rem;
}

/* Standard Assessment Section */
.assessment-section {
    background-color: #f9fdfc; 
    border-top: 1px solid var(--border-color);
    padding: 2rem 2.5rem;
}

/* -----------------------------------------
   5. Component: Callout Cards
   ----------------------------------------- */
.callout-box {
  background-color: var(--surface-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

/* Interactive Launch Cards */
.callout-box.module-callout,
.callout-box.intro-callout,
.callout-box.sa-callout,
.callout-box.csa-callout,
.callout-box.summative-callout,
.callout-box.assessment-plan-callout,
.callout-box.quiz-callout,
.callout-box.diagram-callout, 
.callout-box.reading-callout {
  align-items: center; 
  justify-content: space-between;
  border-left: 6px solid var(--primary-color);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.callout-box.module-callout:hover,
.callout-box.intro-callout:hover,
.callout-box.sa-callout:hover,
.callout-box.csa-callout:hover,
.callout-box.summative-callout:hover,
.callout-box.assessment-plan-callout:hover,
.callout-box.quiz-callout:hover,
.callout-box.diagram-callout:hover,
.callout-box.reading-callout:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--primary-accent);
}

/* Color Variations */
.callout-box.sa-callout,
.callout-box.csa-callout { border-left-color: var(--color-assessment); }
.callout-box.sa-callout:hover, .callout-box.csa-callout:hover { border-left-color: #1abc9c; }

.callout-box.summative-callout,
.callout-box.assessment-plan-callout,
.callout-box.quiz-callout { border-left-color: var(--color-quiz); }
.callout-box.summative-callout:hover, .callout-box.assessment-plan-callout:hover, .callout-box.quiz-callout:hover { border-left-color: #9b59b6; }

.callout-box.diagram-callout { border-left-color: var(--color-diagram); }
.callout-box.diagram-callout:hover { border-left-color: #e67e22; }

.callout-box.reading-callout { border-left-color: var(--color-reading); }
.callout-box.reading-callout:hover { border-left-color: #5c6bc0; }

/* Icons */
.callout-icon {
  flex: 0 0 50px;
  height: 50px;
  background-color: var(--secondary-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  transition: background 0.2s, color 0.2s;
}

.callout-box:hover .callout-icon {
  background-color: var(--primary-accent);
  color: #fff;
}

.callout-icon svg { width: 24px; height: 24px; fill: currentColor; }

/* Content */
.callout-main, .callout-content { flex: 1; }
.callout-title { margin: 0 0 0.5rem 0; font-size: 1.15rem; font-weight: 700; color: var(--primary-color); }
.callout-box p { margin: 0; color: #555; }

/* Buttons */
.callout-box .callout-action,
.callout-box .callout-action-link {
  display: inline-block;
  white-space: nowrap;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  font-weight: 600;
  text-decoration: none;
  background-color: transparent;
  border: 2px solid transparent; 
  transition: all 0.2s ease;
  cursor: pointer;
}

/* Button Colors per type */
.callout-box.module-callout .callout-action, .callout-box.module-callout .callout-action-link,
.callout-box.intro-callout .callout-action, .callout-box.intro-callout .callout-action-link {
    color: var(--primary-color); border-color: var(--primary-color);
}
.callout-box.module-callout:hover .callout-action, .callout-box.module-callout:hover .callout-action-link,
.callout-box.intro-callout:hover .callout-action, .callout-box.intro-callout:hover .callout-action-link {
    background-color: var(--primary-color); color: #ffffff;
}

.callout-box.sa-callout .callout-action, .callout-box.sa-callout .callout-action-link,
.callout-box.csa-callout .callout-action, .callout-box.csa-callout .callout-action-link {
    color: var(--color-assessment); border-color: var(--color-assessment);
}
.callout-box.sa-callout:hover .callout-action, .callout-box.sa-callout:hover .callout-action-link,
.callout-box.csa-callout:hover .callout-action, .callout-box.csa-callout:hover .callout-action-link {
    background-color: var(--color-assessment); color: #ffffff;
}

.callout-box.summative-callout .callout-action, .callout-box.summative-callout .callout-action-link,
.callout-box.assessment-plan-callout .callout-action, .callout-box.assessment-plan-callout .callout-action-link,
.callout-box.quiz-callout .callout-action, .callout-box.quiz-callout .callout-action-link {
    color: var(--color-quiz); border-color: var(--color-quiz);
}
.callout-box.summative-callout:hover .callout-action, .callout-box.summative-callout:hover .callout-action-link,
.callout-box.assessment-plan-callout:hover .callout-action, .callout-box.assessment-plan-callout:hover .callout-action-link,
.callout-box.quiz-callout:hover .callout-action, .callout-box.quiz-callout:hover .callout-action-link {
    background-color: var(--color-quiz); color: #ffffff;
}

.callout-box.diagram-callout .callout-action, .callout-box.diagram-callout .callout-action-link {
    color: var(--color-diagram); border-color: var(--color-diagram);
}
.callout-box.diagram-callout:hover .callout-action, .callout-box.diagram-callout:hover .callout-action-link {
    background-color: var(--color-diagram); color: #ffffff;
}

.callout-box.reading-callout .callout-action, .callout-box.reading-callout .callout-action-link {
    color: var(--color-reading); border-color: var(--color-reading);
}
.callout-box.reading-callout:hover .callout-action, .callout-box.reading-callout:hover .callout-action-link {
    background-color: var(--color-reading); color: #ffffff;
}

/* Informational Variants */
.callout-box.callout--note, .callout-box.callout--tip { background-color: #f8fbff; border-left: 4px solid var(--primary-accent); }
.callout-box.callout--insight, .callout-box.callout--key-idea { background-color: #f0fbf5; border-left: 4px solid var(--success-color); }
.callout-box.callout--warning { background-color: #fffcf4; border-left: 4px solid var(--warning-color); }

/* -----------------------------------------
   6. Component: Data Tables
   ----------------------------------------- */
table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; background-color: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
table th, table td { padding: 1rem; text-align: left; border-bottom: 1px solid #e1e4e8; }
table th { background-color: #f8f9fa; font-weight: 600; color: var(--primary-color); border-bottom: 2px solid #d1d5db; }
table tr:hover { background-color: #f1f8ff; }
.assessment-plan-table th { background-color: var(--primary-color); color: #ffffff; }
.assessment-plan-table tr:last-child td { border-bottom: none; }

/* -----------------------------------------
   7. Component: Modals & Overlays
   ----------------------------------------- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7); z-index: 2000;
    display: none; align-items: center; justify-content: center;
    padding: 1rem; opacity: 0; transition: opacity 0.3s ease;
}
.modal-overlay.is-visible { display: flex; opacity: 1; }

.modal-content {
    background-color: var(--surface-white); width: 100%; max-width: 600px;
    max-height: 90vh; overflow-y: auto; border-radius: 8px;
    padding: 2.5rem; position: relative; box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease-out;
}
.modal-content--wide { max-width: 950px; }

.modal-title { margin-top: 0; border-bottom: 1px solid var(--border-color); padding-bottom: 1rem; margin-bottom: 1.5rem; padding-right: 2rem; }

.modal-close-btn:not(.button) {
    position: absolute; top: 1rem; right: 1rem; background: none; border: none;
    font-size: 2rem; line-height: 1; cursor: pointer; color: #999; transition: color 0.2s;
}
.modal-close-btn:not(.button):hover { color: var(--danger-color); }

.modal-footer { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border-color); text-align: right; }
.modal-footer .modal-close-btn { position: static; }

@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* -----------------------------------------
   8. Component: Quiz Styling
   ----------------------------------------- */
.grade-modal-score {
    text-align: center; margin: 2rem 0; padding: 2rem;
    background-color: var(--secondary-bg); border-radius: 8px; border: 1px solid var(--border-color);
}
.grade-modal-score strong { display: block; font-size: 3.5rem; line-height: 1; margin-top: 0.5rem; color: var(--primary-color); }

/* Quiz Layout */
.quiz-container { display: flex; flex-direction: column; gap: 1.5rem; }
.question-text { font-weight: 600; margin-bottom: 1rem; }
.option-item { margin-bottom: 0.5rem; padding: 0.5rem; border-radius: 4px; transition: background 0.2s; }
.option-item:hover { background-color: #f0f0f0; }

/* Feedback Messages (Correct/Incorrect) */
.feedback-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 4px;
  font-weight: 500;
  display: none; /* Hidden by default until JS toggles it */
}

/* Correct Answer: Light Green Background, Dark Green Text */
.feedback-message.is-correct {
  background-color: var(--success-bg);
  color: var(--success-text);
  border: 1px solid #c3e6cb;
}

/* Incorrect Answer: Light Red Background, Dark Red Text */
.feedback-message.is-incorrect {
  background-color: var(--error-bg);
  color: var(--error-text);
  border: 1px solid #f5c6cb;
}

/* -----------------------------------------
   9. Component: Hybrid Reveal Sections
   ----------------------------------------- */
.section-expert, .section-self-assessment {
    background-color: var(--surface-white); border: 1px solid var(--border-color);
    border-radius: 8px; padding: 2rem; margin-top: 3rem; position: relative;
}
.section-expert h2, .section-self-assessment h2 { border-bottom: 2px solid var(--secondary-bg); padding-bottom: 0.5rem; margin-bottom: 1.5rem; }

.section-expert.is-locked > *:not(h2):not(.reveal-widget),
.section-self-assessment.is-locked > *:not(h2):not(.reveal-widget) { display: none; }

.reveal-widget {
    display: none; margin-top: 1rem; text-align: center; padding: 3rem;
    background-color: #fbfbfb; border: 2px dashed #d1d5db; border-radius: 6px;
    cursor: pointer; transition: all 0.2s ease;
}
.section-expert.is-locked .reveal-widget, .section-self-assessment.is-locked .reveal-widget { display: block; }

.reveal-widget:hover { background-color: #f0f4f8; border-color: var(--primary-accent); }
.reveal-widget strong { display: block; color: var(--primary-color); font-size: 1.2rem; margin-bottom: 0.5rem; }
.reveal-widget span { color: var(--text-muted); }

/* -----------------------------------------
   10. Utilities & Media
   ----------------------------------------- */
.hero-image { margin: 2rem auto; text-align: center; }
.hero-image img { border-radius: var(--border-radius); max-width: 80%; width: auto; margin: 0 auto; box-shadow: var(--shadow-md); }

figure.instructional-image {
  margin: 2rem auto; text-align: center; max-width: 50%;
  cursor: pointer; transition: transform 0.2s ease;
}
figure.instructional-image:hover { transform: scale(1.02); }
figure.instructional-image img { width: 100%; height: auto; border: 1px solid var(--border-color); border-radius: 4px; }
figure.instructional-image figcaption { font-size: 0.9rem; color: var(--text-muted); margin-top: 0.5rem; font-style: italic; }

.instructional-image-modal { width: 100%; height: auto; display: block; }

/* Learning Coach */
.learning-coach {
    background-color: #fff8e1; border-left: 5px solid #f1c40f;
    padding: 1.5rem 1.5rem 1.5rem 4rem; margin: 2rem 0; color: #5d4037;
    font-style: italic; border-radius: 0 4px 4px 0; position: relative; font-size: 1.15rem; 
}
.learning-coach::before {
  content: ''; position: absolute; left: 1rem; top: 1.5rem; width: 2rem; height: 2rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f1c40f'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 3c1.66 0 3 1.34 3 3s-1.34 3-3 3-3-1.34-3-3 1.34-3 3-3zm0 14.2c-2.5 0-4.71-1.28-6-3.22.03-1.99 4-3.08 6-3.08 1.99 0 5.97 1.09 6 3.08-1.29 1.94-3.5 3.22-6 3.22z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-size: contain;
}

/* Buttons */
.button {
  display: inline-block; padding: 0.75rem 1.5rem; border-radius: 4px; font-weight: 600;
  cursor: pointer; border: none; text-align: center;
  background-color: var(--primary-color); color: white; transition: all 0.2s ease;
}
.button:hover { background-color: var(--primary-accent); }

.button--primary { background-color: var(--primary-accent); color: white; }
.button--primary:hover { background-color: #2980b9; color: white; text-decoration: none; }

.button--secondary { background-color: #ffffff; color: var(--primary-color); border: 2px solid var(--primary-color); }
.button--secondary:hover { background-color: var(--primary-color); color: #ffffff; text-decoration: none; }

/* -----------------------------------------
   11. Responsiveness
   ----------------------------------------- */
@media (max-width: 768px) {
    .callout-box { flex-direction: column; }
    
    .callout-box.module-callout, .callout-box.intro-callout, .callout-box.sa-callout,
    .callout-box.csa-callout, .callout-box.summative-callout, .callout-box.assessment-plan-callout,
    .callout-box.quiz-callout, .callout-box.diagram-callout, .callout-box.reading-callout {
        align-items: stretch; text-align: center;
    }

    .callout-icon { margin: 0 auto 1rem auto; }
    .callout-action, .callout-action-link { width: 100%; text-align: center; display: block; margin-top: 1rem; }
    
    .module-block header, .module-block .module-content, .assessment-section { padding: 1.5rem; }
    .page-title-banner h1 { font-size: 1.75rem; }
}