/* kb-help.css — Keyboard-Shortcut-Cheatsheet (Shift+?).
 * Registry-getrieben, filterbar, mehrspaltig, kontext-bewusst. */

/* ── Backdrop + Panel ──────────────────────────────────────────────── */
.app-kbhelp-backdrop {
  position: fixed; inset: 0;
  /* Scrim-SSOT (tokens.css) — Kontext dahinter bleibt erkennbar. */
  background: var(--lod-scrim);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity var(--duration-medium);
  z-index: var(--z-app-toolbar-tier-10);
}
.app-kbhelp-backdrop.is-open { opacity: 1; }

.app-kbhelp-panel {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -48%) scale(0.98);
  width: min(760px, 94vw);
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  background: var(--lod-gray-0, #fff);
  border: 1px solid var(--lod-gray-200);
  border-radius: var(--radius-xl);
  box-shadow: 0 32px 90px color-mix(in srgb, var(--lod-darkblue-900, #1b2540) 28%, transparent);
  z-index: var(--z-app-toolbar-tier-11);
  font-family: var(--lod-font-sans);
  opacity: 0;
  overflow: hidden;
  transition: opacity var(--duration-medium), transform var(--duration-medium);
}
.app-kbhelp-panel.is-open { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ── Header ────────────────────────────────────────────────────────── */
.kbh-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3);
  padding: 20px 22px 14px;
  border-bottom: 1px solid var(--lod-gray-100, var(--lod-gray-200));
}
.kbh-titles h3 { margin: 0; font-size: 18px; color: var(--lod-darkblue); letter-spacing: -0.01em; }
.kbh-sub { margin: 3px 0 0; font-size: 13px; color: var(--lod-gray-500); }
.app-kbhelp-close {
  width: 30px; height: 30px; border-radius: var(--radius-md);
  background: transparent; border: none; cursor: pointer;
  color: var(--lod-gray-500); font-size: 15px; flex: none;
}
.app-kbhelp-close:hover { background: var(--lod-gray-50); color: var(--lod-darkblue); }

/* ── Toolbar (Filter + Kontext) ────────────────────────────────────── */
.kbh-toolbar {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 14px 22px;
  border-bottom: 1px solid var(--lod-gray-100, var(--lod-gray-200));
}
.kbh-filter {
  flex: 1; min-width: 0;
  font-family: var(--lod-font-sans); font-size: 14px;
  padding: 9px 13px;
  border: 1px solid var(--lod-gray-200);
  border-radius: var(--radius-md);
  background: var(--lod-gray-50);
  color: var(--lod-darkblue);
}
.kbh-filter:focus { outline: none; border-color: var(--lod-darkblue); background: var(--lod-gray-0, #fff);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--lod-darkblue) 14%, transparent); }
.kbh-context {
  flex: none; font-size: 12px; color: var(--lod-gray-600, var(--lod-gray-500));
  background: color-mix(in srgb, var(--lod-darkblue) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--lod-darkblue) 18%, transparent);
  border-radius: var(--radius-pill); padding: 5px 11px; white-space: nowrap;
}
.kbh-context strong { color: var(--lod-darkblue); }

/* ── Body: mehrspaltiges Kategorien-Raster ─────────────────────────── */
.kbh-body {
  flex: 1; min-height: 0; overflow-y: auto;
  padding: 18px 22px 8px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px 22px;
  align-content: start;
}
.kbh-cat { display: flex; flex-direction: column; }
.kbh-cat-head {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--lod-darkblue); padding-bottom: 7px; margin-bottom: 3px;
  border-bottom: 2px solid color-mix(in srgb, var(--lod-darkblue) 20%, transparent);
}
.kbh-row {
  display: grid; grid-template-columns: minmax(86px, auto) 1fr; align-items: center;
  gap: var(--space-3); padding: 7px 0;
  border-bottom: 1px solid var(--lod-gray-100, var(--lod-gray-200));
}
.kbh-row:last-child { border-bottom: 0; }
.kbh-keys { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }
.kbh-label { font-size: 13.5px; color: var(--lod-gray-700); }
.kbh-empty { grid-column: 1 / -1; text-align: center; color: var(--lod-gray-500); font-size: 13px; padding: 24px 0; }

/* Keycaps */
.app-kbhelp-panel kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 1.5em; padding: 3px 6px;
  background: linear-gradient(var(--lod-gray-0, #fff), var(--lod-gray-50));
  border: 1px solid var(--lod-gray-200); border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  font-size: 11px; font-family: var(--lod-font-mono, monospace);
  color: var(--lod-darkblue); line-height: 1;
}
.app-seq { display: inline-flex; align-items: center; gap: 4px; }
.app-seq-then { font-size: 10px; color: var(--lod-gray-500); }

/* ── Footer ────────────────────────────────────────────────────────── */
.kbh-foot {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); flex-wrap: wrap;
  padding: 13px 22px;
  border-top: 1px solid var(--lod-gray-100, var(--lod-gray-200));
  font-size: 12px; color: var(--lod-gray-500);
}
.app-kbhelp-toggle { display: inline-flex; align-items: center; gap: var(--space-1-5); cursor: pointer; color: var(--lod-gray-700); }
.app-kbhelp-toggle input { accent-color: var(--lod-darkblue); cursor: pointer; }
.kbh-foot-hint { display: inline-flex; align-items: center; gap: 6px; }

/* ── Floating-Hinweis waehrend einer laufenden Sequenz ("g … dann X") ─ */
.app-seq-hint {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  z-index: var(--z-app-toolbar-tier-11);
  display: inline-flex; align-items: center; gap: var(--space-1-5);
  background: var(--lod-darkblue-900, #1b2540); color: #fff;
  padding: var(--space-1-5) var(--space-3); border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--lod-darkblue-900, #1b2540) 35%, transparent);
  font-size: 12.5px; pointer-events: none;
}
.app-seq-hint kbd {
  background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.24);
  border-bottom-width: 2px; border-radius: var(--radius-sm); color: #fff;
  padding: 2px 7px; font-family: var(--lod-font-mono, monospace); font-size: 11px;
}

@media (prefers-reduced-motion: reduce) {
  .app-kbhelp-backdrop, .app-kbhelp-panel { transition: none; }
}
@media (max-width: 599px) {
  .app-kbhelp-panel { width: 96vw; max-height: 90vh; }
  .kbh-body { grid-template-columns: 1fr; }
}