/* =========================================================
   SEO-АНАЛИЗ ТЕКСТА — стили рабочей области инструмента
   ========================================================= */

.checker-tool {
  background: var(--color-surface);
  border: 1px solid rgba(43, 47, 51, 0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 0 0 8px 0;
}

@media (max-width: 640px) {
  .checker-tool { padding: 20px; }
}

/* =========================================================
   Ввод текста
   ========================================================= */

.checker-field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.checker-field-head label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-strong);
}

.checker-field-count {
  font-size: 12.5px;
  color: var(--color-muted);
  white-space: nowrap;
}

.checker-textarea {
  width: 100%;
  min-height: 260px;
  padding: 16px;
  background: var(--color-bg);
  border: 1px solid rgba(43, 47, 51, 0.08);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  resize: vertical;
  transition: border-color var(--transition-fast);
}

.checker-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Ввод ключевых фраз */
.checker-keywords-row {
  margin-top: 20px;
}

.checker-keywords-row label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-strong);
  margin-bottom: 8px;
}

.checker-keywords-hint {
  display: block;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--color-muted);
  margin-top: 4px;
}

.checker-keywords-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid rgba(43, 47, 51, 0.08);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.checker-keywords-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Кнопки действий */
.checker-actions-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.checker-analyze-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-accent);
  color: #06231a;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.checker-analyze-btn:hover { background: var(--color-accent-dark); }

.checker-clear-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: transparent;
  color: var(--color-muted);
  border: 1px solid rgba(43, 47, 51, 0.1);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checker-clear-btn:hover {
  border-color: rgba(43, 47, 51, 0.25);
  color: var(--color-text);
}

.checker-sample-btn {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: transparent;
  color: var(--color-accent-dark);
  border: none;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 640px) {
  .checker-sample-btn { margin-left: 0; }
}

/* =========================================================
   Результаты — вкладки модулей
   ========================================================= */

.checker-results {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(43, 47, 51, 0.08);
}

.checker-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.checker-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--color-bg);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checker-tab i { font-size: 14px; color: var(--color-muted); }
.checker-tab:hover { background: rgba(29, 217, 122, 0.08); }
.checker-tab.is-active {
  background: var(--color-accent);
  color: #06231a;
}
.checker-tab.is-active i { color: #06231a; }

.checker-tab-panel { display: none; }
.checker-tab-panel.is-active { display: block; animation: checkerFadeIn 0.2s ease-out; }

@keyframes checkerFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   Модуль 1 — Базовые метрики (карточки)
   ========================================================= */

.checker-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.checker-stat-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px;
}

.checker-stat-value {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-strong);
  line-height: 1.2;
}

.checker-stat-label {
  font-size: 12.5px;
  color: var(--color-muted);
  margin-top: 4px;
}

/* =========================================================
   Модуль 2 — Вода и тошнота
   ========================================================= */

.checker-metric-block {
  margin-bottom: 24px;
}

.checker-metric-block:last-child { margin-bottom: 0; }

.checker-metric-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.checker-metric-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-strong);
}

.checker-metric-number {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-strong);
}

.checker-gauge-track {
  height: 10px;
  background: var(--color-bg);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.checker-gauge-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.4s ease;
}

.checker-verdict {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
}

.checker-verdict--good {
  background: rgba(29, 217, 122, 0.12);
  color: var(--color-accent-dark);
}

.checker-verdict--warning {
  background: rgba(245, 124, 0, 0.12);
  color: #b35900;
}

.checker-verdict--bad {
  background: rgba(220, 53, 69, 0.1);
  color: #c1121f;
}

.checker-metric-note {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-top: 8px;
}

/* Подсветка стоп-слов в превью текста */
.checker-highlight-preview {
  max-height: 280px;
  overflow-y: auto;
  padding: 16px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--color-text);
  margin-top: 16px;
}

.checker-highlight-preview mark {
  background: rgba(245, 124, 0, 0.18);
  color: #8a4a00;
  border-radius: 3px;
  padding: 0 2px;
}

/* =========================================================
   Таблицы (частотность, ключи, n-граммы)
   ========================================================= */

.checker-table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(43, 47, 51, 0.06);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.checker-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.checker-table th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 700;
  color: var(--color-text-strong);
  background: rgba(29, 217, 122, 0.08);
  border-bottom: 2px solid rgba(29, 217, 122, 0.2);
  white-space: nowrap;
}

.checker-table td {
  padding: 10px 14px;
  color: var(--color-text);
  border-bottom: 1px solid rgba(43, 47, 51, 0.06);
}

.checker-table tbody tr:last-child td { border-bottom: none; }
.checker-table tbody tr:hover { background: rgba(29, 217, 122, 0.03); }

.checker-table-empty {
  padding: 24px;
  text-align: center;
  color: var(--color-muted);
  font-size: 13.5px;
}

.checker-freq-bar-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checker-freq-bar-track {
  flex: 1;
  height: 6px;
  background: var(--color-bg);
  border-radius: 999px;
  overflow: hidden;
  min-width: 60px;
}

.checker-freq-bar-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}

.checker-subheading {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-strong);
  margin: 24px 0 12px 0;
}

.checker-subheading:first-child { margin-top: 0; }

/* Строка вхождения ключа с оценкой */
.checker-keyword-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
}

.checker-keyword-card:last-child { margin-bottom: 0; }

.checker-keyword-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.checker-keyword-phrase {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--color-text-strong);
}

.checker-keyword-meta {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--color-muted);
}

.checker-keyword-meta strong { color: var(--color-text-strong); }

/* =========================================================
   Модуль 4 — Читаемость
   ========================================================= */

.checker-readability-score {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.checker-score-circle {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--color-bg);
  border: 4px solid var(--color-accent);
}

.checker-score-circle-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-strong);
}

.checker-score-info strong {
  display: block;
  font-size: 16px;
  color: var(--color-text-strong);
  margin-bottom: 4px;
}

.checker-score-info span {
  font-size: 13.5px;
  color: var(--color-muted);
}

/* Шкала читаемости 0-100 с маркером */
.checker-readability-scale {
  margin-top: 4px;
}

.checker-readability-scale-track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, #dc3545 0%, #F57C00 35%, #1DD97A 70%, #17b566 100%);
}

.checker-readability-scale-marker {
  position: absolute;
  top: -5px;
  width: 4px;
  height: 20px;
  background: var(--color-text-strong);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: left 0.4s ease;
  box-shadow: 0 0 0 2px #fff;
}

.checker-readability-scale-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-muted);
}

/* =========================================================
   Модуль 5 — Закон Ципфа
   ========================================================= */

.checker-zipf-intro {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text);
  margin-bottom: 20px;
}

/* Крупный вердикт-баннер сверху — главный вывод без чтения графика */
.checker-zipf-verdict-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.checker-zipf-verdict-banner i { font-size: 24px; flex-shrink: 0; }
.checker-zipf-verdict-banner strong { display: block; font-size: 15px; color: var(--color-text-strong); }
.checker-zipf-verdict-banner span { font-size: 13px; color: var(--color-muted); }

.checker-zipf-verdict-banner--good { background: rgba(29, 217, 122, 0.1); }
.checker-zipf-verdict-banner--good i { color: var(--color-accent-dark); }

.checker-zipf-verdict-banner--bad { background: rgba(220, 53, 69, 0.08); }
.checker-zipf-verdict-banner--bad i { color: #c1121f; }

/* Горизонтальный bar-chart значимых слов */
.checker-zipf-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.checker-zipf-bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 56px;
  align-items: center;
  gap: 12px;
}

@media (max-width: 640px) {
  .checker-zipf-bar-row { grid-template-columns: 84px 1fr 44px; }
}

.checker-zipf-bar-label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text-strong);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.checker-zipf-bar-track {
  position: relative;
  height: 22px;
  background: var(--color-bg);
  border-radius: 6px;
  overflow: visible;
}

.checker-zipf-bar-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.4s ease;
}

.checker-zipf-bar-expected {
  position: absolute;
  top: -3px;
  width: 2px;
  height: 28px;
  background: rgba(25, 27, 30, 0.4);
}

.checker-zipf-bar-count {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-strong);
  text-align: right;
}

.checker-zipf-bar-count small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--color-muted);
}

.checker-zipf-legend {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--color-muted);
}

.checker-zipf-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}


/* =========================================================
   Модуль 6 — Структура заголовков
   ========================================================= */

.checker-structure-mode {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.checker-structure-tree {
  border-left: 2px solid rgba(43, 47, 51, 0.08);
  padding-left: 0;
}

.checker-heading-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0 8px 16px;
  border-bottom: 1px dashed rgba(43, 47, 51, 0.06);
  font-size: 14px;
}

.checker-heading-row:last-child { border-bottom: none; }

.checker-heading-tag {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 22px;
  padding: 0 6px;
  background: var(--color-accent);
  color: #06231a;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 700;
}

.checker-heading-row[data-level="1"] { padding-left: 16px; }
.checker-heading-row[data-level="2"] { padding-left: 36px; }
.checker-heading-row[data-level="3"] { padding-left: 56px; }
.checker-heading-row[data-level="4"] { padding-left: 76px; }
.checker-heading-row[data-level="5"] { padding-left: 96px; }
.checker-heading-row[data-level="6"] { padding-left: 116px; }

.checker-heading-text { color: var(--color-text); flex: 1; }
.checker-heading-issue { color: #c1121f; }

.checker-empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--color-muted);
}

.checker-empty-state i {
  font-size: 32px;
  color: rgba(43, 47, 51, 0.15);
  display: block;
  margin-bottom: 12px;
}

.checker-empty-state p { margin: 0; font-size: 14px; }

@media (max-width: 640px) {
  .checker-tabs { gap: 6px; }
  .checker-tab { padding: 8px 12px; font-size: 12.5px; }
  .checker-stats-grid { grid-template-columns: repeat(2, 1fr); }
}
/* =========================================================
   МЕТКА ОПРЕДЕЛЁННОГО ЯЗЫКА

   Язык влияет на воду, слоги и формулу читаемости, поэтому
   пользователь должен видеть, по каким правилам посчитан его текст,
   а не гадать, почему цифры выглядят непривычно.
   ========================================================= */

.checker-lang {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 18px;
  background: rgba(29, 217, 122, 0.05);
  border-left: 3px solid var(--color-accent);
  border-radius: 6px;
}

.checker-lang i {
  color: var(--color-accent-dark);
  font-size: 15px;
  margin-top: 2px;
  flex-shrink: 0;
}

.checker-lang p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--color-text);
}

.checker-lang strong { color: var(--color-text-strong); }

/* Отступы, ранее заданные прямо в разметке */
.checker-stats-grid.is-spaced { margin-top: 20px; }

.checker-tool-footnote {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-muted);
}

.checker-tool-footnote i { color: var(--color-accent-dark); font-size: 14px; }

.checker-metric-note { margin-top: 16px; }

/* =========================================================
   ТЕКСТ, ТАБЛИЦА НОРМ И БЛОК ОГРАНИЧЕНИЙ В SEO-СЕКЦИЯХ
   ========================================================= */

.tool-seo > p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--color-text);
  margin: 0 0 18px 0;
}

.tool-seo > p strong { color: var(--color-text-strong); }
.tool-seo > *:last-child { margin-bottom: 0; }

.checker-norms-wrap {
  margin: 0 0 20px 0;
  background: var(--color-surface);
  border: 1px solid rgba(43, 47, 51, 0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.checker-norms-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.checker-norms {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

.checker-norms caption {
  caption-side: top;
  text-align: left;
  padding: 22px 26px 18px 26px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--color-muted);
}

.checker-norms th,
.checker-norms td {
  padding: 12px 26px;
  text-align: left;
  font-size: 13.5px;
  line-height: 1.65;
  border-bottom: 1px solid rgba(43, 47, 51, 0.06);
}

/* Графитовая шапка: светлая заливка совпала бы с фоном страницы
   и первая строка читалась бы как дыра в карточке */
.checker-norms thead th {
  background: var(--color-text-strong);
  color: #fff;
  font-weight: 600;
  font-size: 12.5px;
  border-bottom: none;
  white-space: nowrap;
}

.checker-norms tbody tr:last-child th,
.checker-norms tbody tr:last-child td { border-bottom: none; }

.checker-norms tbody th {
  font-weight: 600;
  width: 26%;
  color: var(--color-text-strong);
  vertical-align: top;
}

.checker-norms tbody td:nth-child(2) {
  white-space: nowrap;
  color: var(--color-accent-dark);
  font-weight: 600;
  width: 14%;
}

.checker-norms td { color: var(--color-text); }

/* =========================================================
   ВРЕЗКА И БЛОК ОГРАНИЧЕНИЙ
   ========================================================= */

.checker-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(29, 217, 122, 0.05);
  border-left: 3px solid var(--color-accent);
  border-radius: 6px;
}

.checker-note i {
  color: var(--color-accent-dark);
  font-size: 16px;
  margin-top: 2px;
  flex-shrink: 0;
}

.checker-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text);
}

.checker-note strong { color: var(--color-text-strong); }

.checker-note.is-warning {
  background: rgba(245, 166, 35, 0.07);
  border-left-color: #e89f42;
}

.checker-note.is-warning i { color: #b8791a; }

.checker-limits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}

@media (max-width: 800px) {
  .checker-limits { grid-template-columns: minmax(0, 1fr); }
}

.checker-limit {
  background: var(--color-surface);
  border: 1px solid rgba(43, 47, 51, 0.06);
  border-left: 3px solid rgba(43, 47, 51, 0.15);
  border-radius: var(--radius-md);
  padding: 22px 24px;
}

.checker-limit h3 {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--color-text-strong);
  margin: 0 0 8px 0;
}

.checker-limit p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

.checker-source-note {
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--color-muted);
  margin: 24px 0 0 0;
}

.tool-seo > .checker-source-note { margin: 24px 0 0 0; }
.tool-seo-grid + .checker-note,
.checker-norms-wrap + .checker-note { margin-top: 4px; }

/* Значки легенды графика Ципфа — раньше задавались прямо в разметке */
.checker-zipf-legend-swatch.is-ok {
  background: #1DD97A;
  border-radius: 3px;
  width: 14px;
  height: 10px;
}

.checker-zipf-legend-swatch.is-anomaly {
  background: #c1121f;
  border-radius: 3px;
  width: 14px;
  height: 10px;
}

.checker-zipf-legend-swatch.is-marker {
  background: rgba(25, 27, 30, 0.4);
  width: 2px;
  height: 14px;
}

.checker-table-empty.is-spaced { margin-bottom: 20px; }
.checker-metric-note.is-spaced-bottom { margin-bottom: 16px; }
.checker-block-spaced { margin-bottom: 16px; }

/* Предупреждение о коротком тексте — тот же блок, что метка языка,
   но в предупреждающем тоне */
.checker-lang.is-warning {
  background: rgba(245, 166, 35, 0.08);
  border-left-color: #e89f42;
}

.checker-lang.is-warning i { color: #b8791a; }
.checker-lang[hidden] { display: none !important; }