/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, sans-serif;
}

body {
  background-color: #F7F7F7;
  color: #12213F;
  line-height: 1.6;
}

/* ===================================
   NAVIGATION ELEMENTS
   =================================== */

/* Back button */
.back-btn {
  position: fixed;
  top: 30px;
  left: 40px;
  text-decoration: none;
  font-size: 16px;
  color: #385898;
  transition: opacity 0.2s ease;
  z-index: 100;
}

.back-btn:hover {
  opacity: 0.6;
}

/* Burger menu container */
.burger-menu {
  position: fixed;
  top: 30px;
  right: 40px;
  z-index: 100;
}

/* Burger icon */
.burger-icon {
  width: 28px;
  cursor: pointer;
}

.burger-icon span {
  display: block;
  height: 3px;
  background: #385898;
  margin: 6px 0;
  transition: 0.3s ease;
}

/* Burger nav (hidden by default) */
.burger-nav {
  position: absolute;
  top: 45px;
  right: 0;
  display: none;
  flex-direction: column;
  gap: 14px;
}

.burger-nav a {
  text-decoration: none;
  color: #385898;
  font-size: 16px;
  transition: opacity 0.2s ease;
}

.burger-nav a:hover {
  opacity: 0.6;
}

/* Active burger menu state */
.burger-menu.active .burger-nav {
  display: flex;
}

/* ===================================
   PAGE LAYOUT
   =================================== */
.outcomes-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 70px 40px;
}

/* ===================================
   PROJECT SELECTOR
   =================================== */
.project-selector {
  display: flex;
  gap: 20px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.project-btn {
  background: transparent;
  border: 2px solid #385898;
  border-radius: 999px;
  padding: 12px 26px;
  font-size: 16px;
  color: #385898;
  cursor: pointer;
  transition: all 0.3s ease;
}

.project-btn:hover {
  box-shadow: 0 0 20px rgba(56, 88, 152, 0.35);
}

.project-btn.active {
  background: #385898;
  color: #F7F7F7;
  box-shadow: 0 0 25px rgba(56, 88, 152, 0.5);
}

/* ===================================
   PROJECT CONTENT
   =================================== */
.project-content {
  display: none;
}

.project-content.active {
  display: block;
}

.project-content h1 {
  font-size: 42px;
  margin-bottom: 40px;
  color: #12213F;
}

/* ===================================
   LEARNING OUTCOME NAVIGATION
   =================================== */
.lo-navigation {
  display: flex;
  gap: 15px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.lo-btn {
  background: transparent;
  border: 2px solid #6C88C0;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 15px;
  color: #6C88C0;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.lo-btn:hover {
  background: rgba(108, 136, 192, 0.1);
  transform: translateY(-2px);
}

.lo-btn.active {
  background: #6C88C0;
  color: #F7F7F7;
  box-shadow: 0 4px 12px rgba(108, 136, 192, 0.3);
}

/* ===================================
   LEARNING OUTCOME SECTIONS
   =================================== */
.learning-outcome-section {
  display: none;
  animation: fadeIn 0.4s ease-in;
}

.learning-outcome-section.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.learning-outcome-section h2 {
  font-size: 32px;
  margin-bottom: 30px;
  color: #385898;
  border-bottom: 3px solid #385898;
  padding-bottom: 10px;
}

/* ===================================
   PROOF BLOCKS
   =================================== */
.proof {
  margin-bottom: 40px;
  max-width: 750px;
  padding: 20px;
  background: #FFFFFF;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.proof h3 {
  font-size: 22px;
  margin-bottom: 15px;
  color: #12213F;
}

.proof h4 {
  font-size: 18px;
  margin-top: 20px;
  margin-bottom: 12px;
  color: #385898;
  font-weight: 600;
}

.proof p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 15px;
  color: #333;
}

.proof a {
  font-size: 14px;
  color: #6C88C0;
  text-decoration: none;
  display: inline-block;
  margin-right: 15px;
  margin-bottom: 5px;
  transition: color 0.2s ease;
}

.proof a:hover {
  color: #385898;
  text-decoration: underline;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
  .outcomes-page {
    padding: 50px 20px;
  }

  .project-content h1 {
    font-size: 32px;
  }

  .learning-outcome-section h2 {
    font-size: 26px;
  }

  .project-selector,
  .lo-navigation {
    gap: 10px;
  }

  .project-btn,
  .lo-btn {
    font-size: 14px;
    padding: 10px 18px;
  }

  .proof {
    padding: 15px;
  }

  .proof h3 {
    font-size: 20px;
  }

  .proof h4 {
    font-size: 16px;
  }

  .back-btn,
  .burger-menu {
    top: 20px;
    left: 20px;
  }

  .burger-menu {
    right: 20px;
    left: auto;
  }
}