/* Dark mode background */
body {
  margin: 0;
  font-family: "Comic Neue", Arial, sans-serif;
  background-color: #121212;
  color: #ddd;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background-color: #1f1f1f;
  color: #28a745;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 15px;
}

.user-greeting {
  font-weight: bold;
  color: #fff;
}

.user-xp {
  font-weight: bold;
  color: #ffd700; /* gold/yellow for XP */
}


/* Modal backdrop */
.signup-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

/* Hidden state */
.hidden {
  display: none;
}

/* Modal box */
.signup-modal-content {
  background-color: #1f1f1f;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.6);
  animation: popIn 0.3s ease;
}

.signup-modal-content h2 {
  margin-bottom: 12px;
  color: #28a745;
}

.signup-modal-content p {
  margin-bottom: 20px;
  color: #ddd;
}

.learn-btn {
  background-color: #28a745;
  color: white;
  border: 2px solid yellow;
  padding: 12px 20px;
  font-size: 1.1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.2s;
}

.learn-btn:hover {
  transform: scale(1.05);
}

/* Animation */
@keyframes popIn {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
/* Lessons grid */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 30px;
}

/* Lesson cards */
.lesson-card {
  background-color: #1f1f1f;
  border: 2px solid #28a745;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  transition: transform 0.2s, box-shadow 0.2s;
}

.lesson-card h4 {
  color: #28a745;
  margin-bottom: 10px;
}

.lesson-card p {
  color: #ddd;
  font-size: 0.95rem;
}

.lesson-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.7);
}
/* Learn page layout */
.learn-main {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

.learn-title {
  font-size: 2rem;
  margin-bottom: 8px;
  color: #28a745;
  text-align: center;
}

.learn-subtitle {
  text-align: center;
  margin-bottom: 30px;
  color: #ccc;
}

/* Controls (search + filter) */
.learn-controls {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.learn-search {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #444;
  background: #1f1f1f;
  color: #eee;
}

.learn-filter {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #444;
  background: #1f1f1f;
  color: #eee;
}

/* Home button */
.home-btn {
  background-color: #28a745;
  color: white;
  padding: 8px 14px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s, transform 0.2s;
}

.home-btn:hover {
  background-color: #218838;
  transform: scale(1.05);
}
/* Progress bar */
.xp-progress {
  width: 160px;
  height: 12px;
  background: #eee;
  border-radius: 6px;
  overflow: hidden;
  margin-left: 8px;
  display: inline-block;
  vertical-align: middle;
}

.xp-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #1e63f0, #4cafef);
  transition: width 0.3s ease;
}

/* XP + Level badges */
.xp-level {
  display: flex;
  gap: 8px;
  align-items: center;
}

.xp-box, .level-box {
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: bold;
  min-width: 50px;
  text-align: center;
}

.xp-box {
  background: #eaffea;
  color: #228b22;
  border: 1px solid #9fdf9f;
}

.level-box {
  background: #fff8dc;
  color: #b8860b;
  border: 1px solid #e6d690;
}
.world-map {
  margin: 30px auto;
  max-width: 1000px;
  padding: 0 20px;
}
.map-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 16px;
}
.map-node {
  padding: 14px 16px;
  border-radius: 12px;
  background: #1f1f1f;
  border: 2px solid #444;
  color: #ddd;
  min-width: 180px;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.map-node.unlocked { border-color: #28a745; }
.map-node.locked { border-color: #555; opacity: 0.6; cursor: not-allowed; }
.map-node.boss { border-color: gold; color: #ffd700; font-weight: 700; }
.map-node.unlocked:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.6); }
.badge-shelf {
  margin: 40px auto;
  max-width: 900px;
  text-align: center;
  padding: 0 20px;
}
.badge-title {
  color: #28a745;
  margin-bottom: 6px;
}
.badge-subtitle {
  color: #ccc;
  margin-bottom: 16px;
}
.badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.badge {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #1f1f1f;
  border: 2px solid #555;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #ddd;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.badge:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.7); }
.badge.earned { background: #ffd700; color: #222; border-color: #fff; }
.badge-label {
  font-size: 12px;
  margin-top: 6px;
  color: #bbb;
}
.badge-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
}