/* ============================================================
   Keyboard navigation — estilos
   - :focus-visible reforzado para todos los controles
   - Fila seleccionada en grilla con indicador más visible
   - Badges F# en botones del ribbon
   - Overlay de ayuda
   ============================================================ */

/* ============================================================
   Focus visible — anillo claro y consistente con el tema
   ============================================================ */
:focus { outline: none; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--ofc-blue-700);
  outline-offset: 1px;
  z-index: 5;
  position: relative;
}

.ribbon-tab:focus-visible,
.ws-tab:focus-visible {
  outline: 2px solid var(--ofc-blue-700);
  outline-offset: -2px;
}

.ribbon-file:focus-visible,
.titlebar__btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -3px;
}

.tb-btn:focus-visible,
.btn:focus-visible,
.qat__btn:focus-visible,
.rb-btn-lg:focus-visible,
.rb-btn-sm:focus-visible,
.config-nav__item:focus-visible,
.inner-tab:focus-visible {
  outline: 2px solid var(--ofc-blue-700);
  outline-offset: 1px;
}

/* ============================================================
   Grid: fila seleccionada con indicador de "foco de teclado"
   ============================================================ */
.grid tbody tr.is-selected td {
  position: relative;
}
.grid tbody tr.is-selected td:first-child::before {
  content: "▸";
  position: absolute;
  left: 1px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ofc-blue-900);
  font-weight: bold;
  font-size: 11px;
  line-height: 1;
  pointer-events: none;
}

/* Cuando el body tiene foco activo de teclado, refuerza el border de fila */
body.kbd-active .grid tbody tr.is-selected td {
  box-shadow: 0 1px 0 var(--ofc-blue-700) inset, 0 -1px 0 var(--ofc-blue-700) inset;
}

/* ============================================================
   Badges F# en los botones del ribbon (data-fkey="F2")
   ============================================================ */
.rb-btn-lg[data-fkey],
.rb-btn-sm[data-fkey] {
  position: relative;
}
.rb-btn-lg[data-fkey]::after {
  content: attr(data-fkey);
  position: absolute;
  top: 1px;
  right: 1px;
  background: var(--ofc-blue-700);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  font-family: "Consolas", monospace;
  padding: 0 3px;
  border-radius: 2px;
  line-height: 12px;
  letter-spacing: 0.5px;
  pointer-events: none;
  box-shadow: 0 1px 0 rgba(0,0,0,0.2);
  text-shadow: none;
  z-index: 2;
}
.rb-btn-sm[data-fkey]::after {
  content: attr(data-fkey);
  margin-left: auto;
  background: var(--sil-200);
  color: var(--text-muted);
  font-size: 9px;
  font-weight: 700;
  font-family: "Consolas", monospace;
  padding: 0 4px;
  border-radius: 2px;
  line-height: 13px;
  letter-spacing: 0.5px;
  border: 1px solid var(--border);
}

/* Override por tema del badge F# */
[data-theme="bloomberg"] .rb-btn-lg[data-fkey]::after {
  background: #d4a76a;
  color: #1a1a1a;
}
[data-theme="bloomberg"] .rb-btn-sm[data-fkey]::after {
  background: #2a2a2a;
  color: #d4a76a;
  border-color: #5a4520;
}
[data-theme="slate"] .rb-btn-lg[data-fkey]::after {
  background: #2d6a4f;
  color: #fff;
}
[data-theme="slate"] .rb-btn-sm[data-fkey]::after {
  background: #eaf1f4;
  color: #2d6a4f;
  border-color: #c8d8de;
}

/* ============================================================
   Overlay de ayuda (F1)
   ============================================================ */
.kbd-help {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: kbd-help-fade 120ms ease;
}
.kbd-help.is-open { display: flex; }

@keyframes kbd-help-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.kbd-help__panel {
  background: var(--bg-ribbon, #fdfdfe);
  border: 2px solid var(--ofc-blue-700);
  border-radius: 4px;
  width: 100%;
  max-width: 880px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  font-family: var(--font-ui);
  color: var(--text);
  overflow: hidden;
}
.kbd-help__panel header {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  background: linear-gradient(180deg, var(--ofc-blue-500) 0%, var(--ofc-blue-700) 100%);
  color: #fff;
  border-bottom: 1px solid var(--ofc-blue-900);
  text-shadow: 0 1px 0 rgba(0,0,0,0.3);
}
.kbd-help__panel header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  flex: 1;
}
.kbd-help__close {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  width: 28px;
  height: 24px;
  border-radius: 2px;
  cursor: pointer;
  font-size: 14px;
  display: grid;
  place-items: center;
}
.kbd-help__close:hover { background: rgba(255,255,255,0.15); }

.kbd-help__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 16px;
  overflow: auto;
  background: var(--bg-app, #f0f3f7);
}
.kbd-help__body section {
  background: var(--bg-ribbon, #fff);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 10px 12px;
}
.kbd-help__body h3 {
  margin: 0 0 8px;
  color: var(--ofc-blue-900);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

.kbd-help__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.kbd-help__table td {
  padding: 4px 4px;
  vertical-align: middle;
  color: var(--text);
}
.kbd-help__table td:first-child {
  white-space: nowrap;
  width: 1%;
  padding-right: 12px;
}
.kbd-help__table tr + tr td { border-top: 1px dashed var(--border); }

.kbd-help kbd {
  display: inline-block;
  min-width: 18px;
  padding: 1px 6px;
  background: linear-gradient(180deg, #fff 0%, var(--sil-150) 100%);
  border: 1px solid var(--sil-500);
  border-radius: 3px;
  font-family: "Consolas", "Courier New", monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  box-shadow: 0 1px 0 var(--sil-500), inset 0 -1px 0 var(--sil-200);
  text-align: center;
  line-height: 1.4;
}

.kbd-help__panel footer {
  padding: 8px 16px;
  background: linear-gradient(180deg, var(--sil-150) 0%, var(--sil-200) 100%);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* Dark themes adaptations */
[data-theme="bloomberg"] .kbd-help { background: rgba(0,0,0,0.7); }
[data-theme="bloomberg"] .kbd-help__panel {
  background: #232323;
  border-color: #b8761a;
}
[data-theme="bloomberg"] .kbd-help__body { background: #1a1a1a; }
[data-theme="bloomberg"] .kbd-help__body section {
  background: #262626;
  border-color: #3a3a3a;
}
[data-theme="bloomberg"] .kbd-help kbd {
  background: linear-gradient(180deg, #3a3a3a 0%, #2a2a2a 100%);
  border-color: #5a4520;
  color: #e8c084;
  box-shadow: 0 1px 0 #4a3520, inset 0 -1px 0 #1a1a1a;
}
[data-theme="bloomberg"] .kbd-help__panel footer {
  background: #1a1a1a;
  border-color: #3a3a3a;
}