/* ============================================================
   CHEATSHEETS — индекс (#/cheatsheets), страница шпаргалки,
   карточки команд, кнопки копирования/разворачивания,
   подсветка результатов поиска
   ============================================================ */

/* --- Индекс шпаргалок --- */

.cheatsheets-home {
  padding: 48px 56px 80px;
  max-width: 1180px;
  margin: 0 auto;
}

.cs-hero {
  margin-bottom: 40px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border-2);
}
.cs-hero-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.6px;
  line-height: 1.1;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.cs-hero-title:focus {
  outline: none;
}
.cs-hero-sub {
  font-size: 14.5px;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.6;
}

.cs-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
}

.cs-index-card {
  --c: #007acc;
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 22px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition:
    transform 0.18s cubic-bezier(0.2, 0.8, 0.3, 1),
    border-color 0.18s,
    background 0.18s,
    box-shadow 0.18s;
}
.cs-index-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--c) 0%,
    color-mix(in srgb, var(--c) 40%, transparent) 100%
  );
  opacity: 0.9;
}
.cs-index-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--c) 45%, transparent);
  background: #2a2a2c;
  box-shadow: 0 10px 28px -12px color-mix(in srgb, var(--c) 55%, transparent);
}

.cs-index-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--c) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
  color: var(--c);
}
.cs-index-icon svg {
  width: 22px;
  height: 22px;
}

.cs-index-body {
  flex: 1;
  min-width: 0;
}
.cs-index-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 6px;
  letter-spacing: -0.2px;
}
.cs-index-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 8px;
}
.cs-index-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: #8c8c8c;
  letter-spacing: 0.3px;
}
.cs-index-arrow {
  align-self: center;
  color: #5a5a5a;
  font-size: 18px;
  transition:
    transform 0.2s,
    color 0.2s;
  flex-shrink: 0;
}
.cs-index-card:hover .cs-index-arrow {
  transform: translateX(4px);
  color: var(--c);
}

/* --- Страница шпаргалки --- */

.cs-page {
  padding: 36px 56px 80px;
  max-width: 1400px;
  margin: 0 auto;
}
.cs-page .breadcrumb {
  margin-bottom: 22px;
}

.breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  color: #8c8c8c;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: #8c8c8c;
  text-decoration: none;
  transition: color 0.15s;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  opacity: 0.5;
}

.cs-header {
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-2);
}
.cs-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.6px;
  line-height: 1.15;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.cs-title:focus {
  outline: none;
}
.cs-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 720px;
  margin-bottom: 18px;
}

.cs-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cs-search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 480px;
}
.cs-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: #7a7a7a;
  pointer-events: none;
}
.cs-search {
  width: 100%;
  padding: 10px 14px 10px 36px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text-bright);
  font: inherit;
  font-size: 13.5px;
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
.cs-search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.15);
}
.cs-search::placeholder {
  color: #7a7a7a;
}

.cs-counter {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.3px;
}

.cs-categories {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.cs-category {
}
.cs-category-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--comment);
  margin-bottom: 14px;
}
.cs-category-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-2), transparent);
}

.cs-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 12px;
}

.cs-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 18px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  transition:
    border-color 0.15s,
    background 0.15s,
    box-shadow 0.15s;

  /* Оптимизация рендеринга для длинных страниц */
  content-visibility: auto;
  contain-intrinsic-size: 200px;
}
.cs-card:hover {
  border-color: var(--border);
  background: #292a2c;
  box-shadow: 0 6px 20px -14px rgba(0, 0, 0, 0.6);
}

.cs-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.cs-card-title {
  flex: 1;
  min-width: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-bright);
  line-height: 1.4;
  margin: 0;
  letter-spacing: -0.1px;
}
.cs-card-desc {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}
.cs-card-code {
  margin: 0;
  padding: 12px 14px;
  background: #181818;
  border: 1px solid #2a2a2d;
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: #d4d4d4;
  overflow-x: auto;
  white-space: pre;
}
.cs-card-code code {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
}

.cs-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: #8c8c8c;
  cursor: pointer;
  padding: 0;
  transition:
    color 0.15s,
    border-color 0.15s,
    background 0.15s;
}
.cs-copy:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 122, 204, 0.08);
}
.cs-copy svg {
  width: 15px;
  height: 15px;
}
.cs-copy.copied {
  color: #6a9955;
  border-color: #6a9955;
  background: rgba(106, 153, 85, 0.12);
}

.cs-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  border: 1px dashed var(--border-2);
  border-radius: 10px;
  background: var(--bg-2);
}
.cs-empty b {
  color: var(--text-bright);
}

/* ============================================================
   CHEATSHEET EXPAND (Развернуть карточку)
   ============================================================ */

.cs-card.is-expanded {
  grid-column: 1 / -1; /* Растянуть на всю ширину сетки */
  content-visibility: visible;
  contain-intrinsic-size: auto;
  z-index: 10;
}

.cs-card.is-expanded .cs-card-code {
  white-space: pre-wrap; /* Переносить длинные строки */
  word-break: break-word;
  overflow-x: hidden;
}

.cs-expand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: #8c8c8c;
  cursor: pointer;
  padding: 0;
  transition:
    color 0.15s,
    border-color 0.15s,
    background 0.15s;
  margin-right: 6px; /* Отступ от кнопки копирования */
}

.cs-expand:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 122, 204, 0.08);
}

.cs-expand svg {
  width: 15px;
  height: 15px;
}

/* ============================================================
   Поиск: подсветка совпадений (mark) и найденной карточки
   ============================================================ */

mark.search-hit {
  background: rgba(255, 200, 60, 0.18);
  color: inherit;
  border-radius: 2px;
  padding: 0 2px;
  box-shadow: 0 0 0 1px rgba(255, 200, 60, 0.3);
  animation: search-hit-in 0.9s ease both;
  transition:
    background-color 0.3s ease,
    box-shadow 0.3s ease;
}
mark.search-hit--active {
  background: rgba(255, 200, 60, 0.4);
  box-shadow:
    0 0 0 2px rgba(255, 200, 60, 0.55),
    0 0 14px -2px rgba(255, 200, 60, 0.55);
  animation: search-hit-pulse 1.4s ease-out both;
}
@keyframes search-hit-in {
  from {
    background: rgba(255, 200, 60, 0);
    box-shadow: 0 0 0 0 rgba(255, 200, 60, 0);
  }
  to {
    background: rgba(255, 200, 60, 0.18);
    box-shadow: 0 0 0 1px rgba(255, 200, 60, 0.3);
  }
}
@keyframes search-hit-pulse {
  0% {
    background: rgba(255, 200, 60, 0.7);
    box-shadow: 0 0 0 3px rgba(255, 200, 60, 0.75);
  }
  60% {
    background: rgba(255, 200, 60, 0.55);
    box-shadow: 0 0 0 3px rgba(255, 200, 60, 0.55);
  }
  100% {
    background: rgba(255, 200, 60, 0.4);
    box-shadow: 0 0 0 2px rgba(255, 200, 60, 0.55);
  }
}
pre code mark.search-hit {
  background: rgba(255, 200, 60, 0.22);
  box-shadow: 0 0 0 1px rgba(255, 200, 60, 0.35);
}
pre code mark.search-hit--active {
  background: rgba(255, 200, 60, 0.45);
}

.cs-card--search-hit {
  border-color: rgba(255, 200, 60, 0.55);
  background: #2b2a24;
  box-shadow:
    0 0 0 1px rgba(255, 200, 60, 0.3),
    0 8px 24px -12px rgba(255, 200, 60, 0.45);
}
.cs-card--search-hit .cs-card-title {
  color: #ffd166;
}

/* Внутри комментариев сохраняем читаемость (не курсив) */
pre code .cm mark.search-hit {
  color: #ffd166;
  font-style: normal;
}

/* --- Адаптив --- */

@media (max-width: 900px) {
  .cheatsheets-home {
    padding: 32px 22px 60px;
  }
  .cs-hero-title {
    font-size: 28px;
  }
  .cs-page {
    padding: 28px 22px 60px;
  }
  .cs-title {
    font-size: 26px;
  }
  .cs-cards {
    grid-template-columns: 1fr;
  }
  .cs-index-grid {
    grid-template-columns: 1fr;
  }
  .cs-search-wrap {
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  .cheatsheets-home {
    padding: 26px 16px 50px;
  }
  .cs-page {
    padding: 22px 16px 50px;
  }
  .cs-hero-title {
    font-size: 22px;
  }
  .cs-title {
    font-size: 20px;
  }
  .cs-card {
    padding: 14px 14px;
  }
  .cs-card-code {
    font-size: 12px;
    padding: 10px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cs-index-card,
  .cs-index-card:hover,
  .cs-card,
  .cs-copy {
    transition: none;
    transform: none;
  }
  mark.search-hit,
  mark.search-hit--active {
    animation: none;
    transition: none;
  }
}