/* Страницы-каталоги (Обучение, Форум, Услуги): общий hero и карточки.
   Только токены --ui-*; цвета тем подхватываются автоматически. */

/* ---------- hero внутренних страниц ---------- */
.ui-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--ui-space-5);
  margin-bottom: var(--ui-space-5);
  padding: clamp(1.4rem, 3.5vw, 2.4rem);
  border-radius: var(--ui-radius-xl);
  border: 1px solid color-mix(in srgb, var(--ui-on-primary) 10%, transparent);
  background: var(--ui-gradient-mesh);
  box-shadow: var(--ui-shadow-lg);
  color: var(--ui-on-primary);
}
.ui-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  pointer-events: none;
  background-image: radial-gradient(color-mix(in srgb, var(--ui-on-primary) 16%, transparent) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(80% 90% at 70% 10%, black 20%, transparent 100%);
}
.ui-hero::after {
  content: '';
  position: absolute;
  z-index: -1;
  right: -90px;
  top: -130px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(var(--ui-primary-rgb), 0.4);
  filter: blur(80px);
  pointer-events: none;
}
.ui-hero__body { flex: 1 1 360px; min-width: 0; }
.ui-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--ui-radius-pill);
  background: color-mix(in srgb, var(--ui-on-primary) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--ui-on-primary) 18%, transparent);
  color: var(--ui-on-primary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}
.ui-hero__kicker i { color: var(--ui-lime); }
.ui-hero__title {
  margin: 0.9rem 0 0.6rem;
  max-width: 20ch;
  font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.05;
  font-weight: 800;
  color: var(--ui-on-primary);
}
.ui-hero__title .hl { color: var(--ui-lime); }
.ui-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 1.02rem;
  line-height: 1.7;
  color: color-mix(in srgb, var(--ui-on-primary) 78%, transparent);
}
.ui-hero__actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: var(--ui-space-5); }
.ui-hero__actions .btn { border-radius: var(--ui-radius-pill); }
.ui-hero .btn-primary { background: var(--ui-lime); border-color: transparent; color: var(--ui-ink); font-weight: 800; box-shadow: none; }
.ui-hero .btn-primary:hover { background: var(--ui-lime); filter: brightness(1.06); color: var(--ui-ink); }
.ui-hero .btn-outline {
  background: color-mix(in srgb, var(--ui-on-primary) 8%, transparent);
  border: 1.5px solid color-mix(in srgb, var(--ui-on-primary) 28%, transparent);
  color: var(--ui-on-primary);
}
.ui-hero .btn-outline:hover { background: color-mix(in srgb, var(--ui-on-primary) 16%, transparent); color: var(--ui-on-primary); }
.ui-hero__stats { display: flex; gap: var(--ui-space-3); flex-wrap: wrap; }
.ui-hero__stat {
  min-width: 112px;
  padding: 0.8rem 1rem;
  border-radius: var(--ui-radius);
  background: color-mix(in srgb, var(--ui-on-primary) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--ui-on-primary) 16%, transparent);
  backdrop-filter: blur(8px);
  text-align: center;
}
.ui-hero__stat b { display: block; font-family: var(--ui-font-display); font-size: 1.6rem; line-height: 1.1; color: var(--ui-on-primary); }
.ui-hero__stat span {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--ui-on-primary) 65%, transparent);
}

/* ---------- заголовок секции ---------- */
.ui-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--ui-space-3);
  margin: var(--ui-space-7) 0 var(--ui-space-4);
}
.ui-section-head h2 { margin: 0.4rem 0 0.2rem; font-size: clamp(1.3rem, 2.4vw, 1.75rem); }
.ui-section-head p { margin: 0; color: var(--ui-text-3); max-width: 60ch; }

/* ---------- плитки-навигация (Обучение) ---------- */
.ui-tiles { display: grid; gap: var(--ui-space-3); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 900px) { .ui-tiles { grid-template-columns: repeat(4, 1fr); } }
.ui-tile {
  display: flex;
  align-items: center;
  gap: var(--ui-space-3);
  padding: var(--ui-space-4);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  border: 1px solid var(--ui-line);
  color: var(--ui-text);
  text-decoration: none;
  transition: transform var(--ui-duration-fast) var(--ui-ease), box-shadow var(--ui-duration-fast) var(--ui-ease), border-color var(--ui-duration-fast) var(--ui-ease);
}
.ui-tile:hover { transform: translateY(-3px); box-shadow: var(--ui-shadow-md); border-color: rgba(var(--ui-primary-rgb), 0.45); color: var(--ui-text); }
.ui-tile .mi {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  color: var(--ui-on-primary);
  font-size: 1.1rem;
}
.ui-tile b { display: block; font-family: var(--ui-font-display); font-size: 0.95rem; line-height: 1.25; }
.ui-tile span { display: block; margin-top: 2px; font-size: 0.78rem; color: var(--ui-text-3); }

/* ---------- панель фильтров / сортировки ---------- */
.ui-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ui-space-2);
  margin-bottom: var(--ui-space-4);
  padding: var(--ui-space-2) var(--ui-space-3);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  border: 1px solid var(--ui-line);
  box-shadow: var(--ui-shadow-xs);
}
.ui-toolbar .sort-link { padding: 0.4rem 0.9rem; border-radius: var(--ui-radius-pill); }
.ui-toolbar .sort-link.active { background: var(--ui-primary-soft); color: var(--ui-link); }

/* ---------- карточки объявлений и тем ---------- */
.ad-card, .topic-item {
  border: 1px solid var(--ui-line);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  box-shadow: var(--ui-shadow-xs);
  transition: transform var(--ui-duration-fast) var(--ui-ease), box-shadow var(--ui-duration-fast) var(--ui-ease), border-color var(--ui-duration-fast) var(--ui-ease);
}
.ad-card:hover, .topic-item:hover { transform: translateY(-3px); box-shadow: var(--ui-shadow-md); border-color: rgba(var(--ui-primary-rgb), 0.4); }
.ad-card { display: flex; flex-direction: column; }
.ad-card .ad-title { font-size: 1.08rem; font-weight: 800; line-height: 1.3; margin: 0.15rem 0 0.4rem; }
.ad-card .ad-body { flex: 1; }
.ad-card .ad-description { color: var(--ui-text-2); font-size: 0.92rem; line-height: 1.6; }
.ad-card .ad-meta { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.ad-card .ad-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  border-radius: var(--ui-radius-pill);
  background: var(--ui-surface-2);
  border: 1px solid var(--ui-line-soft);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ui-text-2);
}
.ad-card .ad-meta-item i { color: var(--ui-link); }
.ad-card .ad-footer { border-top: 1px solid var(--ui-line-soft); padding-top: var(--ui-space-3) !important; margin: 0 1.25rem 1.25rem; padding-inline: 0 !important; padding-bottom: 0 !important; }

/* ---------- боковые карточки форума ---------- */
.forum-sidebar-card { border-radius: var(--ui-radius-lg); border-color: var(--ui-line); box-shadow: var(--ui-shadow-xs); }
.forum-sidebar-header { background: var(--ui-surface-2); color: var(--ui-text); }

@media (max-width: 575px) {
  .ui-hero { padding: 1.2rem; border-radius: var(--ui-radius-lg); }
  .ui-hero__stat { flex: 1; min-width: 0; padding: 0.65rem 0.5rem; }
}