/* Index page styles */

/* Page Header */
.page-header {
  padding: 80px 0 60px;
  text-align: center;
}
.section-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.page-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.page-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Intro Section */
.intro-section {
  padding: 40px 0 60px;
  border-bottom: 1px solid var(--border);
}
.intro-content {
  margin: 0 auto;
}
.intro-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.intro-content strong {
  color: var(--text-primary);
}

/* Philosophy Section */
.philosophy-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--border);
}
.philosophy-content {
  margin: 0 auto;
}
.philosophy-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text-primary);
}
.philosophy-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.philosophy-content .note {
  color: var(--text-secondary);
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 16px;
}
.philosophy-content ul {
  list-style: none;
  margin: 16px 0;
}
.philosophy-content ul li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.philosophy-content ul li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--accent);
}
.philosophy-content .closing {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
}
.philosophy-content .closing p {
  margin-bottom: 4px;
}

/* Courses Section */
.courses-section {
  padding: 60px 0 100px;
}
.courses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin: 0 auto;
}

@media (max-width: 700px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
}

/* Course Card */
.course-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}
.course-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.course-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(34, 197, 94, 0.1);
  padding: 6px 12px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 20px;
  align-self: flex-start;
}
.course-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.course-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

/* Course meta */
.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.course-stats {
  display: flex;
  gap: 16px;
}
.course-stat {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.course-stat svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}
.course-arrow {
  color: var(--accent);
  font-size: 1.25rem;
}

/* Topics list */
.topics-list {
  list-style: none;
  margin: 16px 0;
}
.topics-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.topics-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Course Category */
.course-category {
  margin: 0 auto 24px;
  padding-top: 48px;
}
.course-category:first-child {
  padding-top: 0;
}
.category-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.category-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
}