/* ============================
   ERUDITO — COURSES CATALOG
   ============================ */

/* ── Основной контент ─────────────────────────── */
.cat-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 100px 32px 80px;
  position: relative;
  z-index: 1;
}

/* ══════════════════════════════
   HERO-ШАПКА
══════════════════════════════ */

.cat-hero {
  text-align: center;
  padding: 48px 0 56px;
  position: relative;
}

.cat-hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.cat-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 20px;
}

.cat-hero-title em {
  font-style: italic;
  color: var(--gold);
}

.cat-hero-sub {
  font-size: 16px;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Поиск ────────────────────────────────────── */
.cat-search-wrap {
  max-width: 600px;
  margin: 0 auto;
}

.cat-search {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}

.cat-search:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.1);
}

.cat-search-icon {
  padding: 0 4px 0 18px;
  font-size: 16px;
  flex-shrink: 0;
  opacity: 0.5;
}

.cat-search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 15px;
  padding: 16px 14px;
}

.cat-search-input::placeholder {
  color: rgba(240,237,230,0.25);
}

.cat-search-clear {
  background: none;
  border: none;
  color: var(--white-dim);
  padding: 0 16px;
  cursor: pointer;
  font-size: 13px;
  transition: color var(--transition);
}

.cat-search-clear:hover { color: #f87171; }

/* ══════════════════════════════
   ТУЛБАР ФИЛЬТРОВ
══════════════════════════════ */

.cat-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

/* Фильтры категорий */
.cat-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.cat-filter {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--white-dim);
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  padding: 8px 18px;
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.cat-filter:hover {
  color: var(--gold);
  border-color: var(--border);
  background: var(--gold-dim);
}

.cat-filter--active {
  background: var(--gold-dim);
  border-color: var(--gold);
  color: var(--gold);
  font-weight: 600;
}

/* Правая часть тулбара */
.cat-toolbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Селект */
.cat-select-wrap {
  position: relative;
}

.cat-select {
  appearance: none;
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  color: var(--white-dim);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 32px 8px 14px;
  cursor: pointer;
  outline: none;
  transition: all 0.25s ease;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%23c9a84c' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.cat-select:hover, .cat-select:focus {
  border-color: var(--gold);
  color: var(--white);
}

.cat-select option {
  background: #1a1a24;
  color: var(--white);
}

/* Переключатель вид сетки/список */
.cat-view-toggle {
  display: flex;
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  overflow: hidden;
}

.cat-view-btn {
  background: none;
  border: none;
  color: var(--white-dim);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
}

.cat-view-btn--active {
  background: var(--gold-dim);
  color: var(--gold);
}

.cat-view-btn:hover:not(.cat-view-btn--active) {
  background: var(--white-faint);
  color: var(--white);
}

/* ── Результат поиска ─────────────────────────── */
.cat-search-result {
  font-size: 14px;
  color: var(--white-dim);
  margin-bottom: 28px;
  padding: 12px 18px;
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
}

.cat-search-result strong { color: var(--white); }

/* ══════════════════════════════
   СЕТКА КУРСОВ
══════════════════════════════ */

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  transition: all 0.3s ease;
}

/* Вид списком */
.cat-grid--list {
  grid-template-columns: 1fr;
}

.cat-grid--list .cat-card {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  grid-template-rows: 1fr;
  border-radius: 16px;
}

.cat-grid--list .cat-card-thumb {
  height: 100%;
  min-height: 160px;
  border-radius: 16px 0 0 16px;
}

.cat-grid--list .cat-card-footer {
  flex-direction: column;
  padding: 20px 16px;
  border-top: none;
  border-left: 1px solid var(--border-dim);
  justify-content: center;
  gap: 8px;
  min-width: 140px;
}

/* ══════════════════════════════
   КАРТОЧКА КУРСА
══════════════════════════════ */

.cat-card {
  background: var(--bg-2);
  border: 1px solid var(--border-dim);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.cat-card:hover {
  border-color: var(--border);
  transform: translateY(-5px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.45);
}

/* Тонкая золотая линия сверху при hover */
.cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.cat-card:hover::before { opacity: 1; }

/* Превью */
.cat-card-thumb {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-3), #1a1a2e);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.cat-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.cat-card:hover .cat-card-thumb img {
  transform: scale(1.04);
}

.cat-thumb-placeholder {
  font-size: 3.5rem;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.4));
  transition: transform 0.4s ease;
}

.cat-card:hover .cat-thumb-placeholder {
  transform: scale(1.1);
}

/* Бейджи */
.cat-card-badges {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.cat-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 20px;
  backdrop-filter: blur(8px);
}

.cat-badge--category {
  background: rgba(10,10,15,0.7);
  color: var(--gold);
  border: 1px solid var(--border);
}

.cat-badge--hot {
  background: rgba(239,68,68,0.15);
  color: #f87171;
  border: 1px solid rgba(239,68,68,0.3);
}

/* Уровень */
.cat-card-level {
  position: absolute;
  bottom: 10px;
  right: 12px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 20px;
  backdrop-filter: blur(8px);
  background: rgba(10,10,15,0.75);
}

.cat-level--beginner  { color: #4ade80; border: 1px solid rgba(74,222,128,0.3); }
.cat-level--intermediate { color: var(--gold); border: 1px solid var(--border); }
.cat-level--advanced  { color: #f87171; border: 1px solid rgba(239,68,68,0.3); }

/* ── Бейдж рейтинга (правый верхний угол превью) ────── */
.cat-card-rating {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(10, 10, 15, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(201, 168, 76, 0.40);
  border-radius: 20px;
  padding: 4px 10px;
  z-index: 3;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.cat-card:hover .cat-card-rating {
  border-color: rgba(201, 168, 76, 0.7);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.18);
}

.cat-rating-star {
  color: var(--gold);
  font-size: 13px;
  line-height: 1;
  filter: drop-shadow(0 0 4px rgba(201, 168, 76, 0.5));
}

.cat-rating-value {
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
}

.cat-rating-count {
  font-size: 10px;
  color: var(--white-dim);
  line-height: 1;
}

/* Тело карточки */
.cat-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cat-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.3;
}

.cat-card-desc {
  font-size: 13px;
  color: var(--white-dim);
  line-height: 1.65;
  flex: 1;
}

/* Мета */
.cat-card-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.cat-meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--white-dim);
  letter-spacing: 0.03em;
}

.cat-meta-icon { font-size: 12px; opacity: 0.7; }

/* Преподаватель */
.cat-card-teacher {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--border-dim);
}

.cat-teacher-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #0a0a0f;
  flex-shrink: 0;
}

.cat-teacher-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  overflow: hidden;
}

.cat-teacher-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cat-teacher-role {
  font-size: 10px;
  color: var(--white-dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Футер карточки */
.cat-card-footer {
  display: flex;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border-dim);
}

/* Кнопки */
.cat-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
  gap: 6px;
}

.cat-btn--primary {
  flex: 1;
  background: var(--gold);
  color: #0a0a0f;
}

.cat-btn--primary:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201,168,76,0.3);
}

.cat-btn--enrolled {
  flex: 1;
  background: rgba(74,222,128,0.1);
  color: #4ade80;
  border: 1px solid rgba(74,222,128,0.25);
  cursor: default;
}

.cat-btn--ghost {
  background: var(--white-faint);
  border: 1px solid var(--border-dim);
  color: var(--white-dim);
}

.cat-btn--ghost:hover {
  border-color: var(--border);
  color: var(--white);
}

/* ══════════════════════════════
   ПУСТОЕ СОСТОЯНИЕ
══════════════════════════════ */

.cat-empty {
  text-align: center;
  padding: 100px 32px;
}

.cat-empty-icon {
  font-size: 4rem;
  margin-bottom: 24px;
  opacity: 0.6;
}

.cat-empty h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
}

.cat-empty p {
  font-size: 15px;
  color: var(--white-dim);
  margin-bottom: 32px;
  line-height: 1.6;
}

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */

@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .cat-main { padding: 90px 20px 60px; }
  .cat-toolbar { flex-direction: column; align-items: flex-start; }
  .cat-toolbar-right { width: 100%; justify-content: space-between; }
  .cat-grid { grid-template-columns: 1fr; }
  .cat-grid--list .cat-card { grid-template-columns: 1fr; }
  .cat-grid--list .cat-card-thumb { height: 160px; border-radius: 16px 16px 0 0; }
  .cat-grid--list .cat-card-footer {
    flex-direction: row;
    border-left: none;
    border-top: 1px solid var(--border-dim);
    min-width: unset;
  }
  .cat-hero-title { font-size: 2.4rem; }
}