/**
 * DTC Hub + Single DTC — Trouble Codes Styles (ADR-037).
 * Подключается на хабе /trouble-codes/ и детальных страницах /trouble-codes/{code}/.
 *
 * Дизайн-система: «CARBON & SIGNAL» (тёмная тема, токены из kb-style.css / landing-v3.css).
 * Зависит от kb-style.css (body.kb-page: тёмный фон, Astra overrides, переменные --bm-*).
 */

/* ========================================
   ТОКЕНЫ УРОВНЯ КОМПОНЕНТА
   ======================================== */
:root {
  --dtc-primary: #1C69E4;
  --dtc-primary-hover: #2B7AFF;
  --dtc-accent: #00E0C7;
  --dtc-m: #E2231A;
  --dtc-major: #FF8A00;
  --dtc-mono: "JetBrains Mono", monospace;
  --dtc-headings: "Space Grotesk", sans-serif;
}

/* Светлая тема «День» (data-theme="light" на <html>) */
:root[data-theme="light"] {
  --dtc-primary: #1559C7;
  --dtc-primary-hover: #1C69E4;
  --dtc-accent: #009E8C;
  --dtc-m: #E2231A;
  --dtc-major: #C26A00; /* темнее для WCAG AA на белом */
}

/* ========================================
   HERO (расширение kb-archive__header)
   ======================================== */
.dtc-hero .kb-search {
  max-width: 640px;
}

/* ========================================
   ТУЛБАР: ФИЛЬТР ПО ДВИГАТЕЛЮ
   ======================================== */
.dtc-toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.dtc-toolbar__label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bm-text-dim, #8A8A93);
}

.dtc-engine-select {
  padding: 0.6rem 2.25rem 0.6rem 1rem;
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-md, 12px);
  color: var(--bm-text, #F4F4F6);
  font-family: var(--dtc-mono);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A0A0A8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  transition: border-color var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1)),
              box-shadow var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-engine-select:hover {
  border-color: var(--bm-border-strong, rgba(255, 255, 255, 0.14));
}

.dtc-engine-select:focus {
  outline: none;
  border-color: var(--dtc-accent);
  box-shadow: 0 0 0 3px var(--bm-accent-subtle, rgba(0, 224, 199, 0.12));
}

.dtc-engine-select option {
  background: var(--bm-surface-2, #1C1C21);
  color: var(--bm-text, #F4F4F6);
}

/* ========================================
   ЗАГОЛОВОК СЕКЦИИ
   ======================================== */
.dtc-section-title {
  font-family: var(--dtc-headings);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--bm-text, #F4F4F6);
  margin: 2.5rem 0 1.25rem;
}

/* ========================================
   СЕТКА КАТЕГОРИЙ
   ======================================== */
.dtc-cats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.dtc-cat-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem 1.5rem;
  text-align: left;
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-lg, 18px);
  box-shadow: var(--sh-2, 0 8px 24px rgba(0, 0, 0, 0.45));
  cursor: pointer;
  font-family: "Inter", sans-serif;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1)),
              border-color var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1)),
              box-shadow var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

/* Акцентная полоска сверху при hover / active — как у .kb-card */
.dtc-cat-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--dtc-accent), transparent);
  opacity: 0;
  transition: opacity var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-cat-card:hover {
  transform: translateY(-4px);
  border-color: var(--bm-border-strong, rgba(255, 255, 255, 0.14));
  box-shadow: var(--sh-3, 0 20px 60px rgba(0, 0, 0, 0.55));
}

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

.dtc-cat-card--active {
  border-color: var(--dtc-accent);
  background: var(--bm-surface-2, #1C1C21);
}

.dtc-cat-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.dtc-cat-card__name {
  font-family: var(--dtc-headings);
  font-size: 1rem;
  font-weight: 600;
  color: var(--bm-text, #F4F4F6);
  line-height: 1.3;
}

.dtc-cat-card--active .dtc-cat-card__name {
  color: var(--dtc-accent);
}

.dtc-cat-card__count {
  flex-shrink: 0;
  font-family: var(--dtc-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--dtc-accent);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 224, 199, 0.35);
  background: var(--bm-accent-subtle, rgba(0, 224, 199, 0.12));
}

.dtc-cat-card__desc {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--bm-text-muted, #A0A0A8);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dtc-noscript {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--bm-text-muted, #A0A0A8);
}

/* ========================================
   СЧЁТЧИК РЕЗУЛЬТАТОВ / ОШИБКА / ЗАГРУЗКА
   ======================================== */
.dtc-results-count {
  font-family: var(--dtc-mono);
  font-size: 0.78rem;
  color: var(--bm-text-dim, #8A8A93);
  margin-bottom: 1rem;
  min-height: 1.2em;
}

.dtc-error {
  padding: 0.85rem 1.25rem;
  margin-bottom: 1.25rem;
  border-radius: var(--r-md, 12px);
  border: 1px solid rgba(226, 35, 26, 0.4);
  background: var(--bm-m-subtle, rgba(226, 35, 26, 0.12));
  color: #ff8a80;
  font-size: 0.9rem;
}

:root[data-theme="light"] .dtc-error {
  color: #C81E1E;
}

.dtc-error[hidden] {
  display: none;
}

.dtc-loading {
  display: none;
  text-align: center;
  padding: 1rem 0 2rem;
  font-family: var(--dtc-mono);
  font-size: 0.8rem;
  color: var(--bm-text-dim, #8A8A93);
}

/* ========================================
   СЕТКА КОДОВ
   ======================================== */
.dtc-codes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.dtc-code-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.75rem;
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-lg, 18px);
  box-shadow: var(--sh-2, 0 8px 24px rgba(0, 0, 0, 0.45));
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1)),
              border-color var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1)),
              box-shadow var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-code-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--dtc-accent), transparent);
  opacity: 0;
  transition: opacity var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-code-card:hover {
  transform: translateY(-4px);
  border-color: var(--bm-border-strong, rgba(255, 255, 255, 0.14));
  box-shadow: var(--sh-3, 0 20px 60px rgba(0, 0, 0, 0.55));
}

.dtc-code-card:hover::before {
  opacity: 1;
}

.dtc-code-card__header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

/* Код ошибки — всегда JetBrains Mono + бирюзовый акцент */
.dtc-code {
  font-family: var(--dtc-mono);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--dtc-accent);
}

.dtc-code-card__title {
  font-family: var(--dtc-headings);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--bm-text, #F4F4F6);
  margin: 0 0 0.5rem;
}

.dtc-code-card__excerpt {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--bm-text-muted, #A0A0A8);
  margin: 0 0 1rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dtc-code-card__tags {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  padding-top: 0.85rem;
  border-top: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  margin-top: auto;
}

/* Чипы двигателей / моделей */
.dtc-tag {
  font-family: var(--dtc-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--bm-text-dim, #8A8A93);
  transition: background var(--dur-fast, 150ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1)),
              color var(--dur-fast, 150ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-code-card:hover .dtc-tag {
  background: rgba(255, 255, 255, 0.08);
  color: var(--bm-text-muted, #A0A0A8);
}

:root[data-theme="light"] .dtc-tag {
  background: rgba(15, 17, 21, 0.05);
}

:root[data-theme="light"] .dtc-code-card:hover .dtc-tag {
  background: rgba(15, 17, 21, 0.09);
}

.dtc-tag--more {
  color: var(--dtc-accent);
  background: var(--bm-accent-subtle, rgba(0, 224, 199, 0.12));
}

/* ========================================
   БЕЙДЖИ SEVERITY
   ======================================== */
.dtc-badge {
  font-family: var(--dtc-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  background: var(--bm-surface-2, #1C1C21);
  color: var(--bm-text-muted, #A0A0A8);
  white-space: nowrap;
}

.dtc-badge--critical {
  border-color: rgba(226, 35, 26, 0.45);
  background: rgba(226, 35, 26, 0.12);
  color: #ff6b6b;
}

:root[data-theme="light"] .dtc-badge--critical {
  color: #C81E1E;
}

.dtc-badge--major {
  border-color: rgba(255, 138, 0, 0.45);
  background: rgba(255, 138, 0, 0.12);
  color: var(--dtc-major);
}

.dtc-badge--moderate {
  border-color: rgba(28, 105, 228, 0.45);
  background: rgba(28, 105, 228, 0.12);
  color: #6ba3ff;
}

:root[data-theme="light"] .dtc-badge--moderate {
  color: #1559C7;
}

.dtc-badge--minor {
  border-color: rgba(160, 160, 168, 0.4);
  background: rgba(160, 160, 168, 0.12);
  color: var(--bm-text-muted, #A0A0A8);
}

.dtc-badge--cosmetic {
  border-color: rgba(110, 110, 118, 0.35);
  background: rgba(110, 110, 118, 0.1);
  color: var(--bm-text-dim, #8A8A93);
}

/* ========================================
   ПУСТОЕ СОСТОЯНИЕ
   ======================================== */
.dtc-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3.5rem 1.5rem;
  background: var(--bm-surface, #16161A);
  border: 1px dashed var(--bm-border-strong, rgba(255, 255, 255, 0.14));
  border-radius: var(--r-lg, 18px);
}

.dtc-empty__icon {
  width: 40px;
  height: 40px;
  color: var(--bm-text-dim, #8A8A93);
  opacity: 0.6;
  margin-bottom: 1rem;
}

.dtc-empty__title {
  font-family: var(--dtc-headings);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--bm-text, #F4F4F6);
  margin: 0 0 0.5rem;
}

.dtc-empty__text {
  font-size: 0.95rem;
  color: var(--bm-text-muted, #A0A0A8);
  margin: 0;
}

/* ========================================
   SKELETON-ЗАГРУЗКА
   ======================================== */
.dtc-skeleton {
  padding: 1.5rem 1.75rem;
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-lg, 18px);
}

.dtc-skeleton__line {
  height: 0.85rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
  background: linear-gradient(90deg,
    var(--bm-surface-2, #1C1C21) 25%,
    rgba(255, 255, 255, 0.07) 50%,
    var(--bm-surface-2, #1C1C21) 75%);
  background-size: 200% 100%;
  animation: dtcShimmer 1.4s var(--ease, cubic-bezier(0.16, 1, 0.3, 1)) infinite;
}

:root[data-theme="light"] .dtc-skeleton__line {
  background: linear-gradient(90deg,
    var(--bm-surface-2, #F4F5F7) 25%,
    rgba(255, 255, 255, 0.65) 50%,
    var(--bm-surface-2, #F4F5F7) 75%);
  background-size: 200% 100%;
}

.dtc-skeleton__line--code  { width: 30%; height: 1.05rem; }
.dtc-skeleton__line--title { width: 75%; }
.dtc-skeleton__line--text  { width: 90%; }
.dtc-skeleton__line--tags  { width: 45%; margin-bottom: 0; }

@keyframes dtcShimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ========================================
   ПАГИНАЦИЯ
   ======================================== */
.dtc-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 1rem 0 3rem;
}

.dtc-page-btn {
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-sm, 8px);
  color: var(--bm-text-muted, #A0A0A8);
  font-family: var(--dtc-mono);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-page-btn:hover {
  border-color: var(--dtc-accent);
  color: var(--dtc-accent);
  background: var(--bm-accent-subtle, rgba(0, 224, 199, 0.12));
  transform: translateY(-1px);
}

.dtc-page-btn--active {
  background: var(--dtc-accent);
  border-color: var(--dtc-accent);
  color: #0B0B0D;
}

.dtc-page-btn--active:hover {
  background: #00c7b1;
  border-color: #00c7b1;
  color: #0B0B0D;
}

.dtc-page-ellipsis {
  color: var(--bm-text-dim, #8A8A93);
  font-family: var(--dtc-mono);
  padding: 0 0.25rem;
}

/* ========================================
   ДЕТАЛЬНАЯ СТРАНИЦА КОДА (single-dtc.php)
   ======================================== */
.dtc-detail {
  padding-bottom: 4rem;
}

.dtc-detail__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0 0.75rem;
}

.dtc-detail__code {
  font-family: var(--dtc-mono);
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--dtc-accent);
  text-shadow: 0 0 40px rgba(0, 224, 199, 0.15);
  margin: 0;
}

.dtc-detail__title {
  font-family: var(--dtc-headings);
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--bm-text, #F4F4F6);
  margin: 0 0 2rem;
  max-width: 760px;
}

/* Сетка: контент + боковая панель */
.dtc-detail__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 2rem;
  align-items: start;
}

/* Блоки контента */
.dtc-section {
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-lg, 18px);
  box-shadow: var(--sh-2, 0 8px 24px rgba(0, 0, 0, 0.45));
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.25rem;
}

.dtc-section__title {
  font-family: var(--dtc-headings);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--bm-text, #F4F4F6);
  margin: 0 0 0.85rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
}

.dtc-section__title--danger {
  color: #ff6b6b;
}

:root[data-theme="light"] .dtc-section__title--danger {
  color: #C81E1E;
}

.dtc-section__body {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--bm-text-muted, #A0A0A8);
}

.dtc-section__body p {
  margin: 0 0 0.85rem;
}

.dtc-section__body p:last-child {
  margin-bottom: 0;
}

/* Markdown-контент секций (h3/h4, списки, inline-код) */
.dtc-section__body h3,
.dtc-section__body h4 {
  font-family: var(--dtc-headings);
  font-weight: 600;
  color: var(--bm-text, #F4F4F6);
  margin: 1.1rem 0 0.5rem;
}

.dtc-section__body h3 { font-size: 0.98rem; }
.dtc-section__body h4 { font-size: 0.92rem; }

.dtc-section__body h3:first-child,
.dtc-section__body h4:first-child {
  margin-top: 0;
}

.dtc-section__body ul,
.dtc-section__body ol {
  margin: 0 0 0.85rem;
  padding-left: 1.25rem;
}

.dtc-section__body li {
  margin-bottom: 0.4rem;
}

.dtc-section__body li::marker {
  color: var(--dtc-accent);
}

.dtc-section__body strong {
  color: var(--bm-text, #F4F4F6);
  font-weight: 600;
}

.dtc-section__body code {
  font-family: var(--dtc-mono);
  font-size: 0.85em;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--dtc-accent);
}

:root[data-theme="light"] .dtc-section__body code {
  background: rgba(15, 17, 21, 0.07);
}

/* Боковая панель */
.dtc-panel {
  background: var(--bm-surface, #16161A);
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  border-radius: var(--r-lg, 18px);
  box-shadow: var(--sh-2, 0 8px 24px rgba(0, 0, 0, 0.45));
  padding: 1.5rem;
  position: sticky;
  top: 92px;
}

.dtc-panel__block {
  margin-bottom: 1.25rem;
}

.dtc-panel__block:last-child {
  margin-bottom: 0;
}

.dtc-panel__label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bm-text-dim, #8A8A93);
  margin-bottom: 0.6rem;
}

.dtc-panel__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.dtc-panel__mileage {
  font-family: var(--dtc-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--bm-text, #F4F4F6);
}

/* OEM-номера — JetBrains Mono */
.dtc-oem {
  font-family: var(--dtc-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  border: 1px solid var(--bm-border, rgba(255, 255, 255, 0.08));
  background: rgba(255, 255, 255, 0.04);
  color: var(--bm-text-muted, #A0A0A8);
  word-break: break-all;
}

:root[data-theme="light"] .dtc-oem {
  background: rgba(15, 17, 21, 0.05);
}

.dtc-panel__source {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--dtc-primary-hover);
  text-decoration: none;
  transition: color var(--dur-fast, 150ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
  word-break: break-all;
}

.dtc-panel__source:hover {
  color: var(--dtc-accent);
}

.dtc-panel__source::after {
  content: "↗";
  font-size: 0.75rem;
}

/* Кнопка «← Все коды ошибок» (стиль btn--ghost) */
.dtc-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--r-md, 12px);
  border: 1px solid var(--bm-border-strong, rgba(255, 255, 255, 0.14));
  background: transparent;
  color: var(--bm-text, #F4F4F6);
  font-family: "Inter", sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  margin-top: 0.5rem;
  transition: all var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-back:hover {
  border-color: var(--dtc-accent);
  color: var(--dtc-accent);
  background: var(--bm-accent-subtle, rgba(0, 224, 199, 0.12));
  transform: translateY(-1px);
}

/* 404: код не найден */
.dtc-notfound {
  text-align: center;
  padding: 4rem 1.5rem;
  background: var(--bm-surface, #16161A);
  border: 1px dashed var(--bm-border-strong, rgba(255, 255, 255, 0.14));
  border-radius: var(--r-lg, 18px);
  margin: 3rem 0;
}

.dtc-notfound__code {
  font-family: var(--dtc-mono);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 600;
  color: var(--dtc-accent);
  margin: 0 0 0.75rem;
}

.dtc-notfound__title {
  font-family: var(--dtc-headings);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--bm-text, #F4F4F6);
  margin: 0 0 0.75rem;
}

.dtc-notfound__text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--bm-text-muted, #A0A0A8);
  margin: 0 auto 1.75rem;
  max-width: 480px;
}

/* Кнопка в стиле btn--primary для 404-блока */
.dtc-notfound__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-md, 12px);
  border: 1px solid var(--dtc-primary);
  background: var(--dtc-primary);
  color: #ffffff;
  font-family: "Inter", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--dur-base, 300ms) var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
}

.dtc-notfound__cta:hover {
  background: var(--dtc-primary-hover);
  border-color: var(--dtc-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(28, 105, 228, 0.35);
}

/* ========================================
   АДАПТИВ
   ======================================== */
@media (max-width: 1024px) {
  .dtc-cats {
    grid-template-columns: repeat(2, 1fr);
  }

  .dtc-detail__layout {
    grid-template-columns: 1fr;
  }

  .dtc-panel {
    position: static;
  }
}

@media (max-width: 768px) {
  .dtc-codes {
    grid-template-columns: 1fr;
  }

  .dtc-detail__header {
    margin-top: 1.5rem;
  }
}

@media (max-width: 560px) {
  .dtc-cats {
    grid-template-columns: 1fr;
  }

  .dtc-toolbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .dtc-engine-select {
    width: 100%;
  }
}

/* Светлая тема: активная кнопка пагинации — мягкий синий вместо teal-таблетки */
:root[data-theme="light"] .dtc-page-btn--active,
:root[data-theme="light"] .dtc-page-btn--active:hover {
  background: var(--bm-primary-subtle, rgba(21, 89, 199, 0.10));
  border-color: var(--dtc-primary);
  color: var(--dtc-primary);
}
