/* DeusLearn — Courses Catalog Styles */

/* === Catalog Hero === */
.dlw-catalog-hero {
  padding: 140px 0 0;
  position: relative;
  overflow: visible;
  min-height: 72vh;
  display: flex;
  align-items: flex-start;
}

.dlw-catalog-hero .dlw-container { position: relative; z-index: 2; pointer-events: none; }
.dlw-catalog-hero .dlw-container > * { pointer-events: auto; }

/* Galaxy background layer */
.dlw-catalog-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: -40px;
  z-index: 0;
  overflow: hidden;
}

.dlw-catalog-hero-bg .dlw-aether-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.4;
  display: block;
}

/* Soft edge fade so text stays legible */
.dlw-catalog-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 0%, transparent 50%, rgba(17,17,27,0.35) 90%, rgba(17,17,27,0.55) 100%);
  pointer-events: none;
}

.dlw-catalog-hero-content {
  max-width: 720px;
  will-change: transform, opacity;
}

.dlw-catalog-hero-content .dlw-section-label { margin-bottom: 32px; }

.dlw-catalog-hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  margin-bottom: 32px;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.dlw-catalog-hero p {
  font-size: 1.1rem;
  color: var(--dl-text-secondary);
  line-height: 1.7;
  margin-bottom: 48px;
  max-width: 600px;
}

.dlw-catalog-stats-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.dlw-catalog-stat {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dl-text-muted);
  font-size: 0.9rem;
}

.dlw-catalog-stat i { color: var(--dl-primary); }
.dlw-catalog-stat strong { color: var(--dl-text); font-weight: 700; }

/* === Filters === */
.dlw-catalog-filters-section {
  padding: 0;
  margin-top: -58px;
  margin-bottom: 0;
  position: sticky;
  top: 72px;
  z-index: 50;
  background: rgba(17, 17, 27, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.dlw-catalog-filters-section .dlw-filters-bar {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 12px 0;
  width: 100%;
  align-items: center;
}

.dlw-filters-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.dlw-filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dlw-filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-family: var(--dl-font);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--dl-text-muted);
  background: transparent;
  border: 1px solid var(--dl-border);
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--dl-transition);
  outline: none;
}
.dlw-filter-tab:focus { outline: none; }
.dlw-filter-tab:focus-visible {
  outline: 2px solid var(--dl-primary);
  outline-offset: 2px;
}

.dlw-filter-tab:hover {
  color: var(--dl-text);
  border-color: var(--dl-border-hover);
  background: var(--dl-bg-card);
}

.dlw-filter-tab.dlw-active {
  color: var(--dl-primary-fg);
  background: var(--dl-primary);
  border-color: var(--dl-primary);
}

.dlw-filter-count {
  font-size: 0.85rem;
  color: var(--dl-text-muted);
  white-space: nowrap;
}

/* Active nav link */
.dlw-nav-active { color: var(--dl-text) !important; }

/* === Course Grid === */
.dlw-catalog-grid-section {
  padding: 48px 0 80px;
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

.dlw-course-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* === Course Card === */
.dlw-course-card {
  background: var(--dl-bg-card);
  border: 1px solid var(--dl-border);
  border-radius: var(--dl-radius);
  display: flex;
  flex-direction: column;
  transition: all var(--dl-transition);
  overflow: hidden;
}

.dlw-course-card:hover {
  border-color: var(--dl-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* Flagship card — spans full width */
.dlw-course-card.dlw-flagship {
  grid-column: 1 / -1;
  border-color: var(--dl-primary);
  background: linear-gradient(135deg, rgba(203, 166, 247, 0.04), rgba(137, 220, 235, 0.04));
}

.dlw-course-card.dlw-flagship:hover {
  border-color: var(--dl-primary);
  box-shadow: 0 12px 40px rgba(203, 166, 247, 0.15);
}

.dlw-course-card.dlw-flagship .dlw-course-card-body {
  /* inside flagship, let description be wider */
}

.dlw-course-card.dlw-flagship .dlw-course-desc {
  max-width: 700px;
}

/* Card top */
.dlw-course-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 28px 28px 0;
}

.dlw-course-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dlw-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.dlw-badge-flagship {
  background: var(--dl-primary);
  color: var(--dl-primary-fg);
}

.dlw-badge-new {
  background: var(--dl-green);
  color: var(--dl-primary-fg);
}

.dlw-badge-fundamental {
  background: var(--dl-accent);
  color: var(--dl-accent-fg);
}

.dlw-badge-level {
  background: var(--dl-bg-elevated);
  color: var(--dl-text-secondary);
  border: 1px solid var(--dl-border);
}

.dlw-course-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--dl-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dlw-course-icon-wrap i { width: 24px; height: 24px; }

.dlw-accent-bg  { background: var(--dl-accent-soft);  color: var(--dl-accent); }
.dlw-warm-bg    { background: var(--dl-warm-soft);    color: var(--dl-warm); }
.dlw-green-bg   { background: var(--dl-green-soft);   color: var(--dl-green); }
.dlw-primary-bg { background: var(--dl-primary-soft); color: var(--dl-primary); }

/* Card body */
.dlw-course-card-body {
  padding: 20px 28px;
  flex: 1;
}

.dlw-course-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.dlw-course-desc {
  font-size: 0.9rem;
  color: var(--dl-text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}

/* Tech stack pills */
.dlw-course-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.dlw-tech-pill {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--dl-font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--dl-text-muted);
  background: var(--dl-bg-muted);
  border: 1px solid var(--dl-border);
  border-radius: 4px;
  letter-spacing: 0.02em;
}

/* Card meta row */
.dlw-course-card-meta {
  padding: 0 28px;
  margin-bottom: 20px;
}

.dlw-meta-items {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.dlw-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--dl-text-muted);
}

.dlw-meta-item i { color: var(--dl-primary); opacity: 0.7; }

/* Card footer */
.dlw-course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-top: 1px solid var(--dl-border);
  margin-top: auto;
}

.dlw-course-formats {
  display: flex;
  gap: 6px;
}

.dlw-format-pill {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--dl-accent);
  background: var(--dl-accent-soft);
  border-radius: 100px;
}

.dlw-course-card-footer .dlw-btn {
  padding: 10px 22px;
  font-size: 0.875rem;
}

/* Hiding filtered-out cards */
.dlw-course-card.dlw-hidden {
  display: none;
}

/* Focus highlight when jumped to via "Как выбрать программу" chip */
.dlw-course-card.dlw-is-focused {
  border-color: var(--dl-primary);
  box-shadow:
    0 0 0 2px rgba(203, 166, 247, 0.45),
    0 14px 40px rgba(203, 166, 247, 0.18);
  animation: dlw-course-card-pulse 1.2s ease-out 1;
}

@keyframes dlw-course-card-pulse {
  0% {
    box-shadow:
      0 0 0 0 rgba(203, 166, 247, 0.55),
      0 14px 40px rgba(203, 166, 247, 0.18);
  }
  60% {
    box-shadow:
      0 0 0 14px rgba(203, 166, 247, 0),
      0 14px 40px rgba(203, 166, 247, 0.18);
  }
  100% {
    box-shadow:
      0 0 0 2px rgba(203, 166, 247, 0.45),
      0 14px 40px rgba(203, 166, 247, 0.18);
  }
}

/* === Empty State === */
.dlw-catalog-empty {
  text-align: center;
  padding: 80px 20px;
}

.dlw-catalog-empty h3 {
  font-size: 1.2rem;
  margin: 16px 0 8px;
}

.dlw-catalog-empty p {
  font-size: 0.9rem;
  color: var(--dl-text-muted);
  margin-bottom: 24px;
}

/* === Comparison Block === */
.dlw-comparison-block {
  display: grid;
  grid-template-columns: 47fr 53fr;
  gap: 64px;
  align-items: start;
}

.dlw-comparison-left .dlw-section-subtitle {
  margin-top: 16px;
}

.dlw-comparison-right {
  padding-top: 46px;
  padding-left: 24px;
}

.dlw-comparison-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dlw-comparison-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.dlw-comparison-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dlw-comparison-item h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.dlw-comparison-item p {
  font-size: 0.85rem;
  color: var(--dl-text-secondary);
  line-height: 1.6;
}

/* === How to choose === */
.dlw-choose-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.dlw-choose-card {
  background: var(--dl-bg-card);
  border: 1px solid var(--dl-border);
  border-radius: var(--dl-radius);
  padding: 28px;
  transition: all var(--dl-transition);
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-rows: auto 1fr auto;
  column-gap: 16px;
  row-gap: 10px;
  align-items: start;
}

.dlw-choose-card:hover {
  border-color: var(--dl-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--dl-shadow);
}

.dlw-choose-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--dl-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0;
  grid-column: 1;
  grid-row: 1;
  align-self: center;
}

.dlw-choose-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0;
  grid-column: 2;
  grid-row: 1;
  align-self: center;
}

.dlw-choose-card p {
  font-size: 0.875rem;
  color: var(--dl-text-secondary);
  line-height: 1.65;
  margin-bottom: 0;
  grid-column: 1 / -1;
  grid-row: 2;
}

.dlw-choose-card strong { color: var(--dl-text); }

.dlw-choose-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  grid-column: 1 / -1;
  grid-row: 3;
}

.dlw-choose-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--dl-primary);
  background: var(--dl-primary-soft);
  border-radius: 100px;
  transition: all var(--dl-transition);
}

.dlw-choose-tag:hover {
  background: var(--dl-primary);
  color: var(--dl-primary-fg);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .dlw-comparison-block { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .dlw-catalog-hero { padding: 110px 0 40px; }
  .dlw-catalog-hero h1 { font-size: 2rem; }

  .dlw-catalog-filters-section { position: sticky; top: 84px; margin-top: 0; }
  .dlw-catalog-filters-section .dlw-filters-bar { padding: 8px 0; }
  .dlw-filters-bar { flex-direction: row; align-items: center; gap: 0; }
  .dlw-filter-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    width: 100%;
    padding: 0 16px 0;
    gap: 8px;
    scrollbar-width: none;
  }
  .dlw-filter-tabs::-webkit-scrollbar { display: none; }
  .dlw-filter-tab { white-space: nowrap; flex-shrink: 0; padding: 6px 12px; font-size: 0.75rem; }
  .dlw-filter-count { display: none; }

  .dlw-course-grid { grid-template-columns: 1fr; }
  .dlw-course-card.dlw-flagship { grid-column: 1; }

  .dlw-choose-grid { grid-template-columns: 1fr; }
  .dlw-comparison-block { grid-template-columns: 1fr; }

  .dlw-meta-items { gap: 12px; }
}

@media (max-width: 480px) {
  .dlw-course-card-top { padding: 20px 20px 0; }
  .dlw-course-card-body { padding: 16px 20px; }
  .dlw-course-card-meta { padding: 0 20px; }
  .dlw-course-card-footer { padding: 16px 20px; }
  .dlw-catalog-stats-row { flex-direction: column; gap: 12px; }
}