/* Complete Academy - Custom styles */

:root {
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

body {
  -webkit-tap-highlight-color: transparent;
}

.safe-bottom {
  padding-bottom: var(--safe-bottom);
}

/* Navigation active state */
.nav-btn {
  color: #94a3b8;
  transition: color 0.15s;
}
.nav-btn.active {
  color: #2DD4BF;
}
.nav-btn:active {
  transform: scale(0.95);
}

/* Cards */
.card {
  background: rgba(13, 115, 119, 0.25);
  border: 1px solid rgba(20, 143, 147, 0.3);
  border-radius: 1rem;
}

.card-hover:hover {
  background: rgba(13, 115, 119, 0.4);
  border-color: rgba(45, 212, 191, 0.4);
}

/* Progress bar */
.progress-track {
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #148F93, #2DD4BF);
  border-radius: 999px;
  transition: width 0.5s ease;
}

/* Code playground */
#code-editor {
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 14px;
  line-height: 1.5;
  tab-size: 2;
}

/* Lesson content */
.lesson-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 1.5rem 0 0.75rem;
  color: #2DD4BF;
}
.lesson-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem;
}
.lesson-content p {
  margin-bottom: 1rem;
  line-height: 1.65;
  color: #e2e8f0;
}
.lesson-content ul, .lesson-content ol {
  margin: 0.75rem 0 1rem 1.25rem;
  color: #e2e8f0;
}
.lesson-content li {
  margin-bottom: 0.35rem;
}
.lesson-content code {
  background: rgba(0,0,0,0.35);
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.9em;
  color: #2DD4BF;
}
.lesson-content pre {
  background: #042f2e;
  border: 1px solid rgba(20,143,147,0.4);
  border-radius: 0.75rem;
  padding: 1rem;
  overflow-x: auto;
  margin: 1rem 0;
}
.lesson-content pre code {
  background: none;
  padding: 0;
  color: #e2e8f0;
}

/* Chat bubbles */
.chat-bubble-user {
  background: #148F93;
  border-radius: 1rem 1rem 0.25rem 1rem;
}
.chat-bubble-ai {
  background: rgba(13, 115, 119, 0.5);
  border: 1px solid rgba(20, 143, 147, 0.4);
  border-radius: 1rem 1rem 1rem 0.25rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeIn 0.3s ease forwards;
}

@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
.pulse-soft {
  animation: pulse-soft 2s ease-in-out infinite;
}

/* Hide scrollbar but keep functionality */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Button styles */
.btn-primary {
  background: #EF4444;
  color: white;
  font-weight: 600;
  border-radius: 9999px;
  transition: background 0.15s, transform 0.1s;
}
.btn-primary:hover {
  background: #DC2626;
}
.btn-primary:active {
  transform: scale(0.97);
}

.btn-secondary {
  background: rgba(20, 143, 147, 0.3);
  border: 1px solid rgba(45, 212, 191, 0.4);
  color: #2DD4BF;
  font-weight: 600;
  border-radius: 9999px;
  transition: background 0.15s;
}
.btn-secondary:hover {
  background: rgba(20, 143, 147, 0.5);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}