/* ============================================================
   Project Archon — Academy Page CSS
   Educational content, courses, topics
   ============================================================ */

/* ── Academy Hero ────────────────────────────────────────── */
.academy-hero {
  padding-block: var(--space-20) var(--space-12);
  text-align: center;
  position: relative;
  background: radial-gradient(ellipse at top, rgba(0,230,118,0.05), transparent 60%);
}

.academy-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-4);
}

.academy-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.academy-search {
  max-width: 500px;
  margin-inline: auto;
  position: relative;
}

.academy-search input {
  width: 100%;
  padding: 1rem 1.5rem 1rem 3rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  color: var(--text-primary);
  outline: none;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.academy-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0,230,118,0.1);
}

.academy-search i {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* ── Topics Grid ─────────────────────────────────────────── */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

.topic-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.topic-card:hover {
  background: var(--card-bg-hover);
  border-color: rgba(0,230,118,0.3);
  transform: translateY(-2px);
}

.topic-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: var(--primary-glow);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.topic-info h4 {
  font-size: var(--text-base);
  margin-bottom: 2px;
}

.topic-info p {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ── Courses Grid ────────────────────────────────────────── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.course-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-6px);
  border-color: rgba(41,98,255,0.3);
  box-shadow: var(--shadow-lg);
}

.course-img {
  width: 100%;
  height: 180px;
  background: var(--bg-secondary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.course-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,230,118,0.2), rgba(41,98,255,0.2));
  opacity: 0.5;
}

.course-img i {
  font-size: 4rem;
  color: rgba(255,255,255,0.2);
  z-index: 1;
}

.course-level {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: 4px 10px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  color: #fff;
  z-index: 2;
}

.level-beginner { color: var(--primary); }
.level-intermediate { color: var(--warning); }
.level-advanced { color: var(--danger); }

.course-body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.course-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.course-title {
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-2);
}

.course-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-5);
  flex: 1;
}

.course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-color);
}

.course-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.author-avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--grad-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: var(--fw-bold);
  color: #fff;
}

.author-name {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.course-section {
  margin-top: var(--space-10);
}

.course-section h2 {
  margin-bottom: var(--space-4);
}

.course-list {
  display: grid;
  gap: 0.85rem;
  padding-left: 1.25rem;
  color: var(--text-secondary);
}

.course-list li {
  margin-bottom: 0.25rem;
}

.course-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.course-metric {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
}

.course-metric span {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.course-metric strong {
  display: block;
  font-size: var(--text-lg);
}

.course-cta {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  margin-top: var(--space-10);
}

.course-cta-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: var(--space-6);
  align-items: center;
}

.course-cta-text {
  max-width: 620px;
}

.course-cta-text p {
  color: var(--text-secondary);
  margin-top: var(--space-4);
}

.course-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.course-cta-buttons .btn {
  width: 100%;
}

.course-cta-details {
  margin-top: var(--space-5);
  display: grid;
  gap: var(--space-3);
  color: var(--text-secondary);
}

.course-cta-details span {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

@media (max-width: 768px) {
  .course-metrics,
  .course-cta-grid {
    grid-template-columns: 1fr;
  }
}

.author-avatar {
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--grad-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: var(--fw-bold);
  color: #fff;
}

.author-name {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
}