/* ============================================================
   CORESAA — Master Stylesheet
   Consolidated from: coresa.css, coresa_collocations.css,
   syntax-tree.css, explore-interview.css, and all inline
   <style> blocks from splash.html, freq-cor.html,
   freq-comp.html, and campos-semanticos.html.
   ============================================================ */


/* ── Custom fonts (local) ── */
@font-face { font-family: coresa-display;        src: url(fonts/display.ttf); }
@font-face { font-family: coresa-display-italic; src: url(fonts/display_italic.ttf); font-style: italic; }
@font-face { font-family: coresa-mono;           src: url(fonts/mono.ttf); }
@font-face { font-family: coresa-sans;           src: url(fonts/sans.ttf); }
@font-face { font-family: coresa-sans-italic;    src: url(fonts/sans_italic.ttf); font-style: italic; }
@font-face { font-family: coresa-serif;          src: url(fonts/serif.ttf); }
@font-face { font-family: coresa-serif-italic;   src: url(fonts/serif_italic.ttf); font-style: italic; }
@font-face { font-family: coresa-symbols;        src: url(fonts/symbols.ttf); }


/* ── Design tokens ── */
:root {
  /* Palette */
  --bg:           #f5f3ef;
  --bg-card:      #ffffff;
  --bg-hover:     #f0ede8;
  --bg-input:     #faf9f7;
  --bg-filter:    #f7f5f2;

  --border:       rgba(0,0,0,0.09);
  --border-focus: rgba(184, 48, 48, 0.45);

  --text:         #1a1714;
  --text-muted:   #6b6660;
  --text-faint:   #a8a29c;

  --accent:       #b83030;
  --accent-light: rgba(184, 48, 48, 0.07);
  --accent-glow:  rgba(184, 48, 48, 0.15);

  --hit-bg:       rgba(184, 48, 48, 0.09);
  --hit-color:    #9e2020;

  /* Frequency comparison colours */
  --compare-a:    #D25353;
  --compare-b:    #99AD7A;

  /* Typography */
  --font-display: coresa-display;
  --font-body:    coresa-serif;
  --font-ui:      coresa-sans, system-ui, -apple-system, sans-serif;
  --font-mono:    coresa-mono, monospace;

  /* Geometry */
  --radius:       8px;
  --radius-sm:    5px;
  --max-width:    1340px;
  --header-h:     72px;
}


/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }


/* ── Base ── */
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}


/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.2); }


/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  background: #ffffff;
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 4px 2px -2px rgba(0, 0, 0, 0.2), 0 4px 2px -2px rgba(0, 0, 0, 0.19);
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.logo-link { display: flex; align-items: center; flex-shrink: 0; }
.logo { height: 48px; width: auto; object-fit: contain; opacity: 0.92; }

.site-title-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.05rem;
  line-height: 1.1;
  margin-right: auto;
}

.site-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.03em;
  color: var(--text);
}

.site-subtitle {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 0.82;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  text-decoration: none;
  color: var(--text-muted);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  letter-spacing: 0.01em;
}

.nav-link:hover { color: var(--text); background: rgba(0,0,0,0.04); }

.nav-link--active {
  color: var(--accent);
  border-color: rgba(184,48,48,0.3);
  background: var(--accent-light);
}


/* ── Nav dropdown ── */
.nav-dropdown {
  position: relative;
  display: inline-flex;
}

.nav-dropdown-toggle {
  background: none;
  border: 1px solid var(--accent);
  cursor: pointer;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  min-width: 10rem;
  background: #ffffff;
  border-radius: 0.6rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 0.35rem 0;
  display: none;
  z-index: 1100;
}

.nav-dropdown-menu.is-open { display: block; }

.nav-dropdown-menu a {
  display: block;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  text-decoration: none;
  color: #444;
  white-space: nowrap;
  font-family: coresa-sans, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.nav-dropdown-menu a:hover {
  background: rgba(215, 35, 35, 0.06);
  color: var(--accent);
}


/* ============================================================
   LAYOUT
   ============================================================ */
main {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: calc(var(--header-h) + 2rem) 1.5rem 3rem;
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.6rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* Load status */
.load-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.load-status__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-faint);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.25); background: #5c9e6e; }
}

/* Two-column grid */
.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 1.1rem;
  align-items: flex-start;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
  max-height: calc(100vh - var(--header-h) - 3rem);
  overflow-y: auto;
}

.main-col {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* freq-cor / freq-comp page grid */
.page-grid {
  display: grid;
  grid-template-columns: minmax(280px, 390px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

/* freq-cor / freq-comp panel */
.panel {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 0.9rem 1rem;
  background: var(--bg-card);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
  margin-bottom: 1rem;
}

.panel h3 {
  font-size: 0.92rem;
  margin: 0 0 0.45rem 0;
}


/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  transition: border-color 0.2s;
}

.card:focus-within { border-color: rgba(0,0,0,0.15); }

.card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Collapsible card */
.card--collapsible { padding: 0; }
.card--collapsible > summary.card__title {
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  margin-bottom: 0;
  border-radius: var(--radius);
  transition: background 0.15s;
}
.card--collapsible > summary.card__title::-webkit-details-marker { display: none; }
.card--collapsible > summary.card__title:hover { background: var(--bg-hover); }
.card--collapsible[open] > summary.card__title {
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
}
.card--collapsible .hint,
.card--collapsible .participants-list { padding: 0.6rem 1.1rem; }
.card--collapsible[open] > .hint { padding: 0.6rem 1.1rem 0.3rem; }
.card--collapsible[open] > .socio-grid { padding: 0.3rem 1.1rem 1rem; }

.card--collapsible > .collapsible-card__content {
  padding: 0.8rem 1.1rem 1rem;
}

.card--collapsible > .collapsible-card__content .hint {
  padding: 0;
}

.toggle-icon {
  width: 14px; height: 14px;
  color: var(--text-faint);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
details[open] > summary .toggle-icon { transform: rotate(180deg); }

.hint {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-faint);
  line-height: 1.5;
  margin-bottom: 0.6rem;
  font-style: italic;
}


/* ============================================================
   COOKIE NOTICE
   ============================================================ */

#coresaNotice {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: min(90vw, 420px);
  background: #ffffff;
  color: #333;
  border: 2px solid #D25353;
  border-radius: 12px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.25);
  padding: 18px 22px;
  font-family: system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  z-index: 999999999;
}

.coresa-notice-buttons {
  margin-top: 12px;
  text-align: right;
}

.coresa-notice-ok {
  border: none;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  background: #D25353;
  color: white;
}

/* ============================================================
   FORM CONTROLS
   ============================================================ */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.control-group--subcorpus { display: none; }
.control-group + .control-group { margin-top: 0.65rem; }

.control-label {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.control-input,
.control-select {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.38rem 0.55rem;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

.control-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 16 16' fill='none' stroke='%236b6660' stroke-width='2'%3E%3Cpolyline points='4 6 8 10 12 6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.55rem center;
  padding-right: 1.8rem;
}

.control-input:focus,
.control-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.control-input::placeholder { color: var(--text-faint); }

/* Highlight animation on select update */
.control-select--updated {
  animation: coresa-select-updated-glow 1.2s ease-out;
}

@keyframes coresa-select-updated-glow {
  0%   { border-color: var(--accent); box-shadow: 0 0 0 0 var(--accent-glow); background-color: var(--accent-light); }
  35%  { border-color: var(--accent); box-shadow: 0 0 0 5px var(--accent-glow); background-color: var(--accent-light); }
  100% { border-color: var(--border); box-shadow: none; background-color: var(--bg-input); }
}

/* Subcorpus mini-filters */
.subcorpus-filter-stack {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.4rem 0.6rem 0.7rem;
}

.subcorpus-mini-filter {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  overflow: hidden;
}

.subcorpus-mini-filter > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  padding: 0.42rem 0.55rem;
}
.subcorpus-mini-filter > summary::-webkit-details-marker { display: none; }
.subcorpus-mini-filter > summary::after {
  content: "▾";
  float: right;
  color: var(--text-faint);
  transition: transform 0.15s;
}
.subcorpus-mini-filter:not([open]) > summary::after { transform: rotate(-90deg); }

.subcorpus-mini-filter__body {
  padding: 0.5rem 0.6rem 0.6rem;
  border-top: 1px solid var(--border);
}

.subcorpus-mini-filter .multi-filter-item { font-size: 0.76rem; }

/* Search fields row */
.search-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1rem;
  align-items: flex-end;
  margin-top: 0.8rem;
}
.search-fields .control-group          { flex: 1 1 9rem; }
.search-fields .control-group--narrow  { flex: 0 0 6rem; }
.search-fields .control-group--action  { flex: 0 0 auto; }
.search-fields--actions { justify-content: flex-start; }

/* Search mode toggle */
.search-mode-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.search-mode-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.search-mode-toggle {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px;
  gap: 2px;
}

.search-mode-btn {
  font-family: var(--font-ui);
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.22rem 0.75rem;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.search-mode-btn--active {
  background: #f2e6e3;
  color: #79746f;
}

.exclude-interviewers {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  margin-left: 0.4rem;
}
.exclude-interviewers input { accent-color: var(--accent); }

/* freq-cor / freq-comp controls row */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: end;
}

/* Generic native input / select (used in freq pages) */
input[type="number"],
input[type="text"] {
  padding: 0.25rem 0.4rem;
  font-size: 0.85rem;
  border: 1px solid rgba(0,0,0,0.18);
  border-radius: 0.45rem;
  background: #fff;
}


/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.08s;
  letter-spacing: 0.02em;
}

.btn:active  { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}
.btn--primary:hover {
  background: #9e2626;
  box-shadow: 0 6px 18px rgba(184,48,48,0.28);
}

.btn--ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn--ghost:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: rgba(0,0,0,0.15);
}

.btn--round {
  width: 2rem;
  height: 2rem;
  padding: 0;
  justify-content: center;
  font-size: 1.05rem;
}

.btn-icon { width: 14px; height: 14px; }

/* Generic button base for freq pages */
button {
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

button.secondary {
  background: #fff;
  color: var(--accent);
}

button:hover { filter: brightness(0.96); }


/* ============================================================
   QUERY / TERM ROWS
   ============================================================ */
.query-terms {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.9rem;
}

.search-help {
  margin: 0.7rem 0 0;
  padding: 0.55rem 0.7rem;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--accent-light);
  color: var(--text-muted);
  font-style: normal;
}

.term-row,
.query-term-row {
  display: grid;
  grid-template-columns:
    2rem
    minmax(8rem, 1fr)
    minmax(8rem, 1fr)
    minmax(10rem, 0.9fr)
    minmax(6.8rem, 0.48fr)
    minmax(4rem, 0.3fr)
    2rem
    2rem;
  grid-template-areas:
    "number form lemma pos morph distance add remove"
    ". panel panel panel panel panel panel panel";
  gap: 0.7rem;
  align-items: end;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-filter);
}

.term-row::before,
.query-term-row::before {
  content: attr(data-term-index);
  grid-area: number;
  width: 1.7rem;
  height: 1.7rem;
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.78rem;
}

.term-row .control-group,
.query-term-row .control-group { margin-top: 0; }

.term-form-group     { grid-area: form; }
.term-lemma-group    { grid-area: lemma; }
.term-pos-group      { grid-area: pos; }
.term-morph-group    { grid-area: morph; }
.term-distance-group { grid-area: distance; }
.term-add-btn         { grid-area: add; }
.term-remove-btn      { grid-area: remove; }

.term-distance-group--first {
  visibility: hidden;
  pointer-events: none;
}

.term-number {
  width: 1.6rem;
  height: 1.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.78rem;
}

.term-morph-toggle {
  width: 100%;
  min-height: 2.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.38rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: none;
}

.term-morph-toggle:hover,
.term-morph-toggle[aria-expanded="true"] {
  border-color: rgba(184, 48, 48, 0.35);
  background: var(--accent-light);
  color: var(--accent);
}

.term-morph-toggle.is-active {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

.term-add-btn,
.term-remove-btn,
.remove-term {
  width: 2rem;
  height: 2rem;
  align-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-family: var(--font-ui);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.08s;
}

.term-add-btn { color: var(--accent); }
.term-add-btn:hover { background: var(--accent-light); border-color: var(--accent); }

.term-remove-btn,
.remove-term { color: var(--text-muted); }

.term-remove-btn:hover,
.remove-term:hover {
  background: rgba(215, 35, 35, 0.08);
  border-color: var(--accent);
  color: var(--accent);
}

.term-remove-btn:active { transform: scale(0.92); }

.term-remove-btn:focus-visible,
.term-morph-toggle:focus-visible,
.term-features-clear:focus-visible,
.morph-feature > summary:focus-visible,
.morph-advanced > summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.term-features-panel {
  grid-area: panel;
  align-self: stretch;
  min-width: 0;
  padding: 0.8rem;
  border: 1px solid rgba(184, 48, 48, 0.18);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}

.term-features-panel[hidden] { display: none; }

.term-features-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.7rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
}

.term-features-heading {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text);
}

.term-features-note {
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--text-faint);
}

.term-features-clear {
  flex: 0 0 auto;
  padding: 0.22rem 0.58rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  box-shadow: none;
}

.term-features-clear:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

.term-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 0.55rem;
}

.term-features-grid--primary {
  margin-bottom: 0.7rem;
}

/* Rasgos menos habituales: una segunda capa para no sobrecargar
   la búsqueda morfológica principal. */
.morph-advanced {
  margin-top: 0.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.012);
  overflow: hidden;
}

.morph-advanced > summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem;
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-filter);
}

.morph-advanced > summary::-webkit-details-marker { display: none; }

.morph-advanced > summary::after {
  content: "▾";
  margin-left: auto;
  color: var(--text-faint);
  transition: transform 0.15s;
}

.morph-advanced:not([open]) > summary::after {
  transform: rotate(-90deg);
}

.morph-advanced > summary:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.morph-advanced__summary small {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.2rem;
  height: 1.2rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.63rem;
}

.term-features-grid--advanced {
  padding: 0.6rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.morph-feature {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-filter);
  overflow: hidden;
}

/* Al abrir una tarjeta, todo su fondo pasa a blanco. Así, si otra tarjeta
   de la misma fila es más alta, no queda una franja #f7f5f2 debajo de
   las opciones de la tarjeta más corta. */
.morph-feature[open] {
  background: var(--bg-card);
}

.morph-feature > summary {
  min-height: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem;
  padding: 0.4rem 0.55rem;
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.morph-feature > summary::-webkit-details-marker { display: none; }

.morph-feature > summary::after {
  content: "▾";
  margin-left: auto;
  color: var(--text-faint);
  transition: transform 0.15s;
}

.morph-feature:not([open]) > summary::after { transform: rotate(-90deg); }

.morph-feature.has-selection {
  border-color: rgba(184, 48, 48, 0.35);
}

.morph-feature.has-selection > summary {
  background: var(--accent-light);
  color: var(--accent);
}

.morph-feature-count {
  min-width: 1.15rem;
  height: 1.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 0.62rem;
}

.morph-feature-count[hidden] { display: none; }

.morph-feature-options {
  max-height: 11rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.26rem;
  padding: 0.5rem 0.55rem 0.6rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.morph-option,
.morph-special-option {
  display: flex;
  align-items: flex-start;
  gap: 0.42rem;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  line-height: 1.35;
  color: var(--text-muted);
}

.morph-option:hover,
.morph-special-option:hover { color: var(--text); }

.morph-option input,
.morph-special-option input {
  flex: 0 0 auto;
  margin-top: 0.12rem;
  accent-color: var(--accent);
}

.morph-special-option {
  margin-bottom: 0.65rem;
  padding: 0.55rem 0.65rem;
  border: 1px dashed rgba(184, 48, 48, 0.3);
  border-radius: var(--radius-sm);
  background: var(--accent-light);
}

.morph-special-option span {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

.morph-special-option small {
  color: var(--text-faint);
  font-size: 0.68rem;
}

.term-features-empty {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  color: var(--text-faint);
  font-style: italic;
}

.kwic-control-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* POS checkbox group (used in freq pages sidebar) */
.pos-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.8rem;
}

.pos-checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
}

.pos-checkbox-group input { accent-color: var(--accent); }


/* ============================================================
   SOCIOLINGUISTIC FILTER GRID
   ============================================================ */
.socio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem;
  margin-top: 0.2rem;
}

.filter-group {
  background: var(--bg-filter);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0;
  overflow: hidden;
}

.filter-group__label {
  display: block;
  padding: 0.42rem 0.65rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.35);
  margin: 0;
}

.filter-group__body { padding: 0.55rem 0.65rem; }

/* Checkboxes */
.multi-filter {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.multi-filter--scroll {
  max-height: 130px;
  overflow-y: auto;
}

.multi-filter-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.12s;
}
.multi-filter-item:hover { color: var(--text); }

.multi-filter-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 13px; height: 13px;
  border: 1px solid var(--text-faint);
  border-radius: 3px;
  background: var(--bg-input);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.15s, background 0.15s;
}

.multi-filter-item input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.multi-filter-item input[type="checkbox"]:checked::after {
  content: '';
  display: block;
  position: absolute;
  top: 1px; left: 3px;
  width: 4px; height: 7px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}


/* ============================================================
   PARTICIPANTS LIST
   ============================================================ */
.participants-list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-height: 300px;
  overflow-y: auto;
  padding-bottom: 0.4rem;
}

.participant-card {
  padding: 0.45rem 0.55rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}

.participant-card:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}

.participant-name {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}

.participant-meta {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-top: 0.1rem;
  line-height: 1.4;
}


/* ============================================================
   RESULTS
   ============================================================ */
.card--results { padding-bottom: 0; }

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.7rem;
}

.results-header .card__title { margin-bottom: 0; }

.results-actions { display: flex; gap: 0.4rem; }

.results-count {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-faint);
  padding: 0 0 0.6rem;
  border-bottom: 1px solid var(--border);
  font-style: italic;
}

.results-list { padding-bottom: 0.5rem; }

.result {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}
.result:last-child { border-bottom: none; }

/* KWIC line */
.kwic {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  white-space: pre-wrap;
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.12s;
  display: block;
}
.kwic:hover { color: var(--text); }

.hit {
  color: var(--hit-color);
  background: var(--hit-bg);
  font-weight: 600;
  padding: 0 3px;
  border-radius: 3px;
}

.meta {
  font-family: var(--font-ui);
  font-size: 0.73rem;
  color: var(--text-faint);
  margin-top: 0.3rem;
  line-height: 1.5;
}

.full-context {
  display: none;
  margin-top: 0.4rem;
  padding: 0.5rem 0.7rem;
  background: rgba(0,0,0,0.025);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-body);
  font-size: 0.83rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.6;
}
.full-context--visible { display: block; }

.load-more-btn {
  display: block;
  width: 100%;
  margin-top: 0.6rem;
  padding: 0.55rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: center;
  background: transparent;
  color: var(--text-faint);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.load-more-btn:hover {
  color: var(--text);
  border-color: rgba(0,0,0,0.15);
  background: var(--bg-hover);
}


/* ============================================================
   CHART / BAR ROWS  (freq-cor, freq-comp, campos-semanticos)
   ============================================================ */
.chart-wrap {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(120px, 220px) minmax(0, 1fr) 110px;
  gap: 0.7rem;
  align-items: center;
  font-size: 0.85rem;
}

.bar-label { word-break: break-word; }

/* Single bar (freq-cor) */
.bar-track {
  height: 0.9rem;
  border-radius: 999px;
  background: #f0f0f0;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(215,35,35,0.65), #D25353);
}

/* Dual bars (freq-comp) */
.dual-bars { display: grid; gap: 0.18rem; }

.bar-track--slim { height: 0.62rem; }

.bar-fill--a { background: var(--compare-a); }
.bar-fill--b { background: var(--compare-b); }

.bar-value {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  font-size: 0.78rem;
}

/* Comparison boxes (freq-comp) */
.comparison-box {
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 0.7rem;
  padding: 0.75rem;
  background: rgba(0,0,0,0.015);
  margin-bottom: 0.75rem;
}

.comparison-box h3 {
  margin: 0 0 0.55rem;
  font-size: 0.95rem;
  font-family: var(--font-display, inherit);
  color: var(--text-muted, #666);
}

.comparison-box--a h3::before,
.comparison-box--b h3::before {
  content: '';
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  margin-right: 0.4rem;
  vertical-align: -0.05rem;
}

.comparison-box--a h3::before { background: var(--compare-a); }
.comparison-box--b h3::before { background: var(--compare-b); }

/* Shared table wrap */
.table-wrap {
  overflow: auto;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 0.7rem;
  margin-top: 0.65rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

thead {
  background: rgba(0,0,0,0.03);
  position: sticky;
  top: 0;
  z-index: 1;
}

th, td {
  padding: 0.4rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  vertical-align: top;
}

td.numeric, th.numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.summary-list {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid #eee;
  padding-bottom: 0.35rem;
}

.muted       { color: #666; font-size: 0.82rem; }
.empty-state { color: #666; font-size: 0.92rem; }

#loadStatus { font-size: 0.85rem; color: #555; margin-top: 0.5rem; }


/* ============================================================
   CHARACTER POPUP
   ============================================================ */
.char-popup {
  position: absolute;
  display: none;
  background: #ee9595;
  border: 1px solid rgba(0,0,0,0.15);
  border-radius: 0.6rem;
  padding: 0.3rem;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
  z-index: 2000;
}

.char-popup button {
  background: transparent;
  border: none;
  padding: 0.3rem 0.45rem;
  font-size: 1rem;
  cursor: pointer;
  border-radius: 0.4rem;
}

.char-popup button:hover { background: white; }


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  margin-top: auto;
  padding: 1.1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: transparent;
}

.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-ui);
  font-size: 0.73rem;
  color: var(--text-faint);
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(184,48,48,0.25);
  transition: border-color 0.15s, background 0.15s;
}
.site-footer a:hover {
  border-bottom-color: var(--accent);
  background: var(--accent-light);
}

.footer-sep { color: var(--text-faint); opacity: 0.4; }


/* ============================================================
   PAGE LOAD ANIMATIONS
   ============================================================ */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page-header { animation: fade-up 0.4s ease both; }
.sidebar     { animation: fade-up 0.4s ease 0.08s both; }
.main-col    { animation: fade-up 0.4s ease 0.14s both; }


/* ============================================================
   SPLASH PAGE
   ============================================================ */
.splash-main { max-width: var(--max-width); }

.splash-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(184, 48, 48, 0.12), transparent 34rem),
    linear-gradient(135deg, #ffffff 0%, #faf9f7 55%, #f0ede8 100%);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  padding: 2.4rem 2.2rem;
  margin-bottom: 1.3rem;
  animation: fade-up 0.4s ease both;
}

.splash-hero::after {
  content: "";
  position: absolute;
  right: -5rem; bottom: -6rem;
  width: 18rem; height: 18rem;
  border-radius: 50%;
  background: var(--accent-light);
  border: 1px solid rgba(184, 48, 48, 0.12);
  pointer-events: none;
}

.splash-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid rgba(184, 48, 48, 0.18);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  margin-bottom: 1rem;
}

.splash-title {
  max-width: 780px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--text);
  margin-bottom: 0.9rem;
  position: relative;
  z-index: 1;
}

.splash-intro {
  max-width: 720px;
  font-family: var(--font-body);
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

.splash-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.4rem;
  position: relative;
  z-index: 1;
}

.tools-section { animation: fade-up 0.4s ease 0.08s both; }

.tools-section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.6rem 0 0.9rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.tools-section-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-muted);
  line-height: 1.2;
}

.tools-section-note {
  max-width: 520px;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-faint);
  text-align: right;
  line-height: 1.5;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 1.15rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
}

.tool-card--small {
  min-height: 125px;
  padding: 0.8rem 1rem;
}

.tool-card--new-row {
  margin-top: 1rem;
}

.tool-card--small .tool-title {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.tool-card--small .tool-description {
  font-size: 0.8rem;
  line-height: 1.45;
  margin-bottom: 0.5rem;
}

.tool-card--small .tool-link {
  font-size: 0.72rem;
}

.tool-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(184, 48, 48, 0.05), transparent 45%),
    linear-gradient(180deg, rgba(255,255,255,0), rgba(0,0,0,0.015));
  opacity: 0;
  transition: opacity 0.18s ease;
  pointer-events: none;
}

.tool-card:hover { border-color: rgba(184, 48, 48, 0.28); }
.tool-card:hover::before { opacity: 1; }
.tool-card:focus-visible {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}



.tool-icon {
  width: 3.1rem; height: 3.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(184, 48, 48, 0.15);
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.tool-icon svg { width: 1.55rem; height: 1.55rem; stroke-width: 1.8; }

.tool-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 0.45rem;
  position: relative;
  z-index: 1;
}

.tool-description {
  font-family: var(--font-ui);
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.tool-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  position: relative;
  z-index: 1;
}

.tool-link svg { width: 0.9rem; height: 0.9rem; transition: transform 0.15s ease; }
.tool-card:hover .tool-link svg { transform: translateX(3px); }

.splash-info {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1rem;
  margin-top: 1rem;
  animation: fade-up 0.4s ease 0.14s both;
}

.splash-info .card__title { margin-bottom: 0.55rem; }

.splash-info p,
.splash-info li {
  font-family: var(--font-ui);
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.splash-info ul { padding-left: 1.15rem; }
.splash-info li + li { margin-top: 0.25rem; }

.splash-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.7rem;
}

.splash-pill {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-filter);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.18rem 0.6rem;
}


/* ============================================================
   CAMPOS SEMÁNTICOS PAGE
   ============================================================ */
.semantic-toolbar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.7rem 1rem;
  align-items: end;
}

.semantic-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.7rem;
  margin-top: 0.9rem;
}

.stat-tile {
  background: var(--bg-filter);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.75rem;
}

.stat-tile__value {
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--accent);
  line-height: 1.1;
}

.stat-tile__label {
  font-family: var(--font-ui);
  color: var(--text-muted);
  font-size: 0.74rem;
  margin-top: 0.2rem;
}

.semantic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 0.9rem;
}

.semantic-table-wrap { overflow-x: auto; }

.semantic-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.82rem;
}

.semantic-table th,
.semantic-table td {
  padding: 0.45rem 0.4rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.semantic-table th {
  color: var(--text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.semantic-table tbody tr { cursor: pointer; transition: background 0.12s; }
.semantic-table tbody tr:hover,
.semantic-table tbody tr.is-selected { background: var(--accent-light); }

.bar-cell { min-width: 130px; }

/* Thin bar used on campos page (overrides generic .bar-track height) */
.semantic-table .bar-track {
  height: 0.55rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.semantic-table .bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: 999px;
}

.selected-field-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 0.45rem;
}

.small-note {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-faint);
  line-height: 1.45;
  margin-bottom: 0.65rem;
}

.kwic-list {
  max-height: 520px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.kwic-item {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}
.kwic-item:last-child { border-bottom: none; }

.kwic-line {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--text-muted);
  white-space: pre-wrap;
}

.field-hit {
  color: var(--hit-color);
  background: var(--hit-bg);
  border-radius: 3px;
  padding: 0 3px;
  font-weight: 600;
}

.semantic-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.65rem;
}

.semantic-pill {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-muted);
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
}

.semantic-pill:hover,
.semantic-pill.is-selected {
  border-color: rgba(184,48,48,0.35);
  background: var(--accent-light);
  color: var(--accent);
}

.checkbox-line {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-bottom: 0.4rem;
}

.comparison-table-wrap { overflow-x: auto; }


/* ============================================================
   EXPLORE INTERVIEW PAGE
   ============================================================ */
.layout--explore {
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
}

.explore-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 1rem);
  align-self: start;
  max-height: calc(100vh - var(--header-h) - 2rem);
  overflow-y: auto;
  padding-right: 0.15rem;
}

.pos-filter-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem 0.5rem;
}

.option-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.35;
}

.option-row input[type="checkbox"],
.option-row input[type="radio"] { accent-color: var(--accent); flex-shrink: 0; }

.option-row--separated {
  border-top: 1px solid var(--border);
  margin-top: 0.85rem;
  padding-top: 0.85rem;
}

.frequency-word-options {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  margin-top: 0.55rem;
}

.explore-frequency-btn { margin-top: 0.8rem; width: 100%; justify-content: center; }

.frequency-result {
  margin-top: 0.8rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-filter);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.frequency-result strong { color: var(--text); }

/* explore summary list */
.explore-sidebar .summary-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
}
.explore-sidebar .summary-list div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.35rem;
}
.explore-sidebar .summary-list div:last-child { border-bottom: none; padding-bottom: 0; }
.explore-sidebar .summary-list dt { color: var(--text-faint); font-weight: 600; }
.explore-sidebar .summary-list dd { color: var(--text); text-align: right; }

.transcript-card { min-height: 65vh; }

.transcript-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.9rem;
  margin-bottom: 0.9rem;
}

.highlight-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  background: #fff;
}

.legend-chip__swatch {
  width: 0.85rem; height: 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.12);
}

.transcript-view {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.transcript-empty {
  font-family: var(--font-ui);
  color: var(--text-faint);
  font-style: italic;
  padding: 1rem 0;
}

.turn {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.turn--interviewer { background: rgba(0,0,0,0.018); }

.turn__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.7rem;
  align-items: baseline;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-ui);
  font-size: 0.76rem;
  color: var(--text-faint);
  background: var(--bg-filter);
}

.turn__speaker { color: var(--text); font-weight: 700; }
.turn__role    { color: var(--text-muted); }

.turn__body {
  padding: 0.75rem 0.85rem 0.85rem;
  font-size: 1.02rem;
  line-height: 1.85;
}

.sentence { display: block; margin-bottom: 0.35rem; }

.tok {
  border-radius: 0.24rem;
  padding: 0.03rem 0.14rem;
  transition: box-shadow 0.12s, outline-color 0.12s;
}
.tok:hover { outline: 1px solid rgba(0,0,0,0.2); }

.tok--pos-ADJ   { background: rgba(255, 214, 102, 0.55); }
.tok--pos-ADV   { background: rgba(157, 195, 230, 0.48); }
.tok--pos-AUX   { background: rgba(190, 170, 225, 0.48); }
.tok--pos-DET   { background: rgba(210, 210, 210, 0.62); }
.tok--pos-NOUN  { background: rgba(169, 209, 142, 0.52); }
.tok--pos-PRON  { background: rgba(244, 177, 131, 0.5); }
.tok--pos-PROPN { background: rgba(146, 208, 180, 0.5); }
.tok--pos-VERB  { background: rgba(210, 83, 83, 0.24); }
.tok--pos-NUM   { background: rgba(180, 198, 231, 0.52); }
.tok--pos-ADP   { background: rgba(255, 230, 153, 0.45); }
.tok--pos-CCONJ,
.tok--pos-SCONJ { background: rgba(217, 210, 233, 0.55); }
.tok--pos-INTJ  { background: rgba(234, 153, 153, 0.42); }
.tok--pos-PART  { background: rgba(201, 218, 248, 0.48); }

.tok--codeswitch {
  background: rgba(215, 35, 35, 0.18);
  box-shadow: inset 0 -0.17em 0 rgba(215, 35, 35, 0.75);
}

.tok--frequency-hit {
  outline: 2px solid var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}


/* ============================================================
   SYNTAX TREE PAGE
   ============================================================ */
.syntax-layout {
  grid-template-columns: 300px minmax(0, 1fr);
}

.syntax-check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.8rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
}

.syntax-check input {
  width: 14px; height: 14px;
  accent-color: var(--accent);
}

.syntax-sentence-select {
  min-height: 17rem;
  padding-right: 0.55rem;
  background-image: none;
  font-family: var(--font-ui);
  line-height: 1.35;
}

.syntax-sentence-select option {
  padding: 0.35rem 0.25rem;
  white-space: normal;
}

.syntax-current-card .results-header,
.syntax-tree-card .results-header { margin-bottom: 0.4rem; }

.syntax-sentence-text {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
}

.syntax-svg-wrap {
  width: 100%;
  overflow-x: auto;
  padding: 1rem 0 0.4rem;
  background: rgba(0,0,0,0.015);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.syntax-svg {
  display: block;
  min-width: 100%;
  font-family: var(--font-ui);
}

.syntax-arc {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.4;
  opacity: 0.82;
}

.syntax-arc--punct {
  stroke-dasharray: 4 4;
  opacity: 0.45;
}

.syntax-arc-label-bg { fill: var(--bg-card); opacity: 0.92; }

.syntax-arc-label {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--text-muted);
}

.syntax-token-word {
  font-family: var(--font-mono);
  font-size: 13px;
  fill: var(--text);
  font-weight: 600;
}

.syntax-token-pos {
  font-family: var(--font-ui);
  font-size: 10px;
  fill: var(--text-faint);
  letter-spacing: 0.04em;
}

.syntax-root-marker { fill: var(--accent); }

.syntax-tree-text {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-muted);
  white-space: pre;
  overflow-x: auto;
  background: rgba(0,0,0,0.025);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.75rem 0.9rem;
}

.syntax-table-wrap {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.syntax-token-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.78rem;
}

.syntax-token-table th,
.syntax-token-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.syntax-token-table th {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--bg-filter);
  position: sticky;
  top: 0;
  z-index: 1;
}

.syntax-token-table td:first-child,
.syntax-token-table th:first-child { text-align: right; color: var(--text-faint); }

.syntax-token-table code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.syntax-empty { color: var(--text-faint); font-style: italic; }


/* ============================================================
   ARTICLE TEMPLATE
   ============================================================ */
.article-main { max-width: 1180px; }
.article-shell { animation: fade-up 0.4s ease both; }

.article-hero {
  background:
    linear-gradient(135deg, rgba(184,48,48,0.08), rgba(255,255,255,0.75)),
    var(--bg-card);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: clamp(1.4rem, 3vw, 2.4rem);
  margin-bottom: 1.2rem;
}

.article-kicker {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4.1rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--text);
  max-width: 980px;
}

.article-subtitle {
  max-width: 980px;
  margin-top: 1rem;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
  color: #444;
}

.article-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.article-meta-item {
  background: rgba(255,255,255,0.58);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.75rem;
}

.article-meta-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.18rem;
}

.article-meta-value {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.4rem;
}

.article-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 760px);
  gap: 1.2rem;
  align-items: start;
  justify-content: center;
}

.article-toc { position: sticky; top: calc(var(--header-h) + 1.5rem); }

.article-toc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.article-toc-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.article-toc ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  padding: 0; margin: 0;
}

.article-toc a {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  line-height: 1.35;
  text-decoration: none;
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.32rem 0.5rem;
  transition: background 0.15s, color 0.15s;
}

.article-toc a:hover,
.article-toc a:focus { color: var(--accent); background: var(--accent-light); outline: none; }

.article-content { display: flex; flex-direction: column; gap: 1rem; }

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.2rem, 2.4vw, 2rem);
}

.article-card h2, .article-card h3, .article-card h4 {
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.2;
}

.article-card h2 {
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}

.article-card h3 {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-top: 1.6rem;
  margin-bottom: 0.55rem;
}

.article-card h4 {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-top: 1.2rem;
}

.article-card p { font-size: 1.04rem; line-height: 1.78; margin-bottom: 1rem; }
.article-card p:last-child { margin-bottom: 0; }

.article-card a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(184,48,48,0.25);
  transition: border-color 0.15s, background 0.15s;
}
.article-card a:hover { border-bottom-color: var(--accent); background: var(--accent-light); }

.article-card em { font-family: coresa-serif-italic, var(--font-body); }
.article-card strong { font-weight: 700; color: var(--text); }

.article-abstract { border-left: 4px solid var(--accent); }
.article-abstract h2 { color: var(--accent); }

.article-keywords {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.article-keywords span {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-right: 0.2rem;
}

.article-keywords a {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid rgba(184,48,48,0.18);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
}

.article-card blockquote {
  margin: 1.4rem 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-filter);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.ling-example {
  background: var(--bg-filter);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin: 1.2rem 0;
}

.ling-example-label {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.45rem;
}

.ling-example p {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 0.45rem;
}

.ling-example .command,
.ling-example .argument {
  font-family: var(--font-mono);
}

.article-note {
  background: rgba(184,48,48,0.055);
  border: 1px solid rgba(184,48,48,0.18);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin: 1.3rem 0;
}

.article-note h3 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.35rem;
}

.article-note p {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.article-figure { margin: 1.4rem 0; }

.article-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-filter);
}

.article-figure figcaption,
.article-table caption {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-faint);
  margin-top: 0.45rem;
  text-align: left;
}

.article-table-wrap {
  overflow-x: auto;
  margin: 1.2rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.86rem;
  min-width: 560px;
}

.article-table caption { caption-side: bottom; padding: 0.65rem 0.8rem; }

.article-table th,
.article-table td { padding: 0.65rem 0.8rem; border-bottom: 1px solid var(--border); text-align: left; }

.article-table th { background: var(--bg-filter); color: var(--text-muted); font-weight: 700; }
.article-table tr:last-child td { border-bottom: none; }

.article-content ul,
.article-content ol { margin: 0.75rem 0 1rem 1.4rem; padding-left: 1rem; }

.article-content li { padding-left: 0.25rem; margin-bottom: 0.35rem; line-height: 1.7; }
.article-content li::marker { color: var(--accent); font-weight: 700; }

.article-references p {
  padding-left: 1.4rem;
  text-indent: -1.4rem;
  font-size: 0.95rem;
  line-height: 1.65;
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1050px) {
  .tools-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { position: static; order: -1; }
  .article-toc-card ol { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .article-meta-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; max-height: none; overflow-y: visible; }
  .syntax-layout { grid-template-columns: 1fr; }
  .syntax-sentence-select { min-height: 12rem; }
  .semantic-grid { grid-template-columns: 1fr; }
  .site-subtitle { display: none; }
}

@media (max-width: 900px) {
  .layout--explore { grid-template-columns: 1fr; }
  .explore-sidebar { position: static; max-height: none; overflow: visible; }
  .transcript-header { flex-direction: column; }
  .page-grid { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 1fr; gap: 0.25rem; }
  .bar-value { text-align: left; }
  .term-row,
  .query-term-row {
    grid-template-columns: 2rem minmax(0, 1fr) minmax(0, 1fr) 2rem 2rem;
    grid-template-areas:
      "number form lemma add remove"
      ". pos morph add remove"
      ". distance distance add remove"
      ". panel panel panel panel";
  }

  .term-distance-group--first { display: none; }
}

@media (max-width: 760px) {
  .splash-hero { padding: 1.6rem 1.25rem; }
  .tools-grid,
  .splash-info { grid-template-columns: 1fr; }
  .tools-section-header { align-items: flex-start; flex-direction: column; }
  .tools-section-note { text-align: left; }
  .tool-card { min-height: auto; }
}

@media (max-width: 640px) {
  main { padding-inline: 1rem; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
  .search-fields { gap: 0.6rem; }
  .search-fields .control-group { flex: 1 1 100%; }
  .search-fields .control-group--narrow { flex: 0 0 6rem; }
  .site-nav { gap: 0; }
  .nav-link { padding: 0.3rem 0.45rem; font-size: 0.72rem; }
  .site-header-inner { gap: 0.7rem; }
  .article-main { padding-inline: 1rem; }
  .article-hero { padding: 1.2rem; }
  .article-meta-grid { grid-template-columns: 1fr; }
  .article-title { font-size: 2.15rem; }
  .article-card { padding: 1.05rem; }
  .article-card p { font-size: 1rem; line-height: 1.7; }
  .article-actions { flex-direction: column; align-items: stretch; }
  .article-actions .btn { justify-content: center; }
  .splash-title { font-size: 2.15rem; }
  .splash-intro { font-size: 1rem; }
  .term-row,
  .query-term-row {
    grid-template-columns: 2rem minmax(0, 1fr) 2rem 2rem;
    grid-template-areas:
      "number form add remove"
      ". lemma add remove"
      ". pos add remove"
      ". morph add remove"
      ". distance add remove"
      ". panel panel panel";
  }

  .term-features-header { flex-direction: column; }
  .term-features-clear { align-self: flex-start; }
  .term-features-grid { grid-template-columns: 1fr; }
}


/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header,
  .site-footer,
  .article-toc,
  .article-actions { display: none; }

  body { background: #fff; }

  main.article-main { padding: 0; max-width: none; }

  .article-hero,
  .article-card { border: none; padding: 0; background: #fff; }

  .article-layout { display: block; }

  .article-card { page-break-inside: avoid; margin-bottom: 1.5rem; }

  .article-card a { color: #000; border-bottom: none; }
}
/* ============================================================
   AYUDA / TUTORIALES
   Añadir al final de assets/coresa.css
   ============================================================ */

.help-main {
  max-width: 1180px;
}

.help-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.8rem);
  margin-bottom: 1.2rem;
  background:
    radial-gradient(circle at top left, rgba(184, 48, 48, 0.13), transparent 34rem),
    linear-gradient(135deg, #ffffff 0%, #faf9f7 58%, #f0ede8 100%);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  animation: fade-up 0.4s ease both;
}

.help-hero::after {
  content: "";
  position: absolute;
  right: -4rem;
  bottom: -7rem;
  width: 19rem;
  height: 19rem;
  border: 1px solid rgba(184, 48, 48, 0.12);
  border-radius: 50%;
  background: var(--accent-light);
  pointer-events: none;
}

.help-hero__content {
  position: relative;
  z-index: 1;
}

.help-eyebrow {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-ui);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid rgba(184, 48, 48, 0.18);
  border-radius: 999px;
  padding: 0.27rem 0.7rem;
  margin-bottom: 0.9rem;
}

.help-title {
  max-width: 760px;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--text);
}

.help-intro {
  max-width: 720px;
  margin-top: 0.9rem;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.35rem;
}

.help-hero__icon {
  position: relative;
  z-index: 1;
  width: clamp(6rem, 12vw, 9rem);
  height: clamp(6rem, 12vw, 9rem);
  display: grid;
  place-items: center;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(184, 48, 48, 0.18);
  border-radius: 2rem;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.08);
}

.help-hero__icon svg {
  width: 54%;
  height: 54%;
}

.help-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.help-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 1.3rem);
}

.help-toc {
  padding: 1rem;
}

.help-toc__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.help-toc__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.16rem;
}

.help-toc__list a {
  display: block;
  padding: 0.38rem 0.55rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.79rem;
  line-height: 1.4;
  text-decoration: none;
  color: var(--text-muted);
  transition: background 0.15s, color 0.15s;
}

.help-toc__list a:hover,
.help-toc__list a:focus-visible {
  color: var(--accent);
  background: var(--accent-light);
  outline: none;
}

.help-toc__note {
  margin-top: 0.85rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-ui);
  font-size: 0.73rem;
  line-height: 1.55;
  color: var(--text-faint);
}

.help-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}

.tutorial-card {
  scroll-margin-top: calc(var(--header-h) + 1.2rem);
  padding: 0;
  overflow: hidden;
  animation: fade-up 0.4s ease both;
}

.tutorial-card__header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--border);
}

.tutorial-number {
  width: 2.4rem;
  height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--accent-light);
  border: 1px solid rgba(184, 48, 48, 0.16);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
}

.tutorial-kicker {
  font-family: var(--font-ui);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.tutorial-title {
  margin-top: 0.05rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  line-height: 1.15;
  color: var(--text);
}

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #181615;
  overflow: hidden;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.tutorial-card__body {
  padding: 1rem 1.1rem 1.1rem;
}

.tutorial-card__body p {
  max-width: 780px;
  color: var(--text-muted);
  line-height: 1.7;
}

.tutorial-page-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.8rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent);
}

.tutorial-page-link span {
  transition: transform 0.15s ease;
}

.tutorial-page-link:hover span {
  transform: translateX(3px);
}

.help-contact {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.1rem;
  background: linear-gradient(135deg, rgba(184, 48, 48, 0.06), #fff);
}

.help-contact__icon {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--accent);
  background: #fff;
  border: 1px solid rgba(184, 48, 48, 0.18);
  border-radius: 999px;
}

.help-contact__icon svg {
  width: 1.35rem;
  height: 1.35rem;
}

.help-contact h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--text);
}

.help-contact p {
  margin-top: 0.25rem;
  font-family: var(--font-ui);
  font-size: 0.83rem;
  line-height: 1.65;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .help-layout {
    grid-template-columns: 1fr;
  }

  .help-sidebar {
    position: static;
  }

  .help-toc__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .help-hero {
    grid-template-columns: 1fr;
    padding: 1.35rem;
  }

  .help-hero__icon {
    display: none;
  }

  .help-title {
    font-size: 2.35rem;
  }

  .help-intro {
    font-size: 1rem;
  }

  .help-toc__list {
    grid-template-columns: 1fr;
  }

  .tutorial-card__header {
    align-items: flex-start;
  }
}

/* ============================================================
   SEARCH STATISTICS CARD
   ============================================================ */
.search-stats-card .card__title {
  margin-bottom: 0.2rem;
}

.search-stats-status {
  margin-bottom: 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-faint);
  font-style: italic;
}

.search-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.search-stat {
  min-width: 0;
  padding: 0.55rem 0.58rem;
  background: var(--bg-filter);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.search-stat__value {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.08;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.search-stat__label {
  margin-top: 0.24rem;
  font-family: var(--font-ui);
  font-size: 0.66rem;
  line-height: 1.25;
  color: var(--text-muted);
}

.search-stats-universe {
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--border);
}

.search-stats-universe__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.55rem;
  padding: 0.18rem 0;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.search-stats-universe__row strong {
  color: var(--text);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.search-stats-distribution {
  margin-top: 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  overflow: hidden;
}

.search-stats-distribution > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem;
  padding: 0.48rem 0.55rem;
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  background: #fff;
}

.search-stats-distribution > summary::-webkit-details-marker {
  display: none;
}

.search-stats-distribution > summary::after {
  content: "▾";
  margin-left: auto;
  color: var(--text-faint);
  transition: transform 0.15s ease;
}

.search-stats-distribution:not([open]) > summary::after {
  transform: rotate(-90deg);
}

.search-stats-distribution > summary:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.search-stats-distribution__count {
  margin-left: auto;
  padding: 0.05rem 0.38rem;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.64rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.search-stats-distribution__count:empty {
  display: none;
}

.search-stats-distribution__body {
  max-height: 320px;
  overflow-y: auto;
  padding: 0.55rem;
  border-top: 1px solid var(--border);
  background: #fff;
}

.search-stats-empty {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  line-height: 1.45;
  color: var(--text-faint);
  font-style: italic;
}

.search-distribution-item + .search-distribution-item {
  margin-top: 0.62rem;
}

.search-distribution-item__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.7rem;
}

.search-distribution-item__name {
  min-width: 0;
  color: var(--text);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-distribution-item__hits {
  flex-shrink: 0;
  color: var(--accent);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.search-distribution-item__bar {
  height: 0.36rem;
  margin-top: 0.25rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--bg-filter);
  border: 1px solid var(--border);
}

.search-distribution-item__fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--accent);
}

.search-distribution-item__rate {
  margin-top: 0.14rem;
  font-family: var(--font-ui);
  font-size: 0.64rem;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}