/* ==========================================================================
   SENIOR CANVAS — wolna płaszczyzna z kropkowym gridem
   Karty pozycjonowane absolutnie, przeciągane myszą, pozycje w localStorage.
   ========================================================================== */

/* Widok senior agentów — flex-column gdy WIDOCZNY, none gdy [hidden].
   Ważne: #ID ma wyższy priorytet niż .view[hidden], więc trzeba oba */
#view-senior-agents:not([hidden]) {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  position: relative; /* punkt odniesienia dla .sc-zoom-badge */
}

/* Płaszczyzna — wypełnia resztę widoku pod toolbarem */
.senior-canvas {
  position: relative;
  flex: 1;
  /* min-height jako fallback gdy flex nie działa */
  min-height: calc(100vh - 160px);
  /* Dot grid: maleńkie kropeczki 1 px co 24 px */
  background-color: var(--bg-0);
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.11) 1px, transparent 1px);
  background-size: 24px 24px;
  overflow: auto;
  /* Delikatna ramka od toolbara */
  border-top: 1px solid var(--border-subtle);
}

/* Kontener świata — przyjmuje zoom, karty i pusty stan */
.sc-world {
  position: relative;
  min-width: 100%;
  min-height: 100%;
  /* zoom ustawiane przez JS */
}

/* Karty na płaszczyźnie — pozycjonowane absolutnie */
.sc-world .agent-card {
  position: absolute;
  width: 300px;
  cursor: grab;
  /* Własne z-index zarządzane przez JS */
}

/* Stan przeciągania */
.sc-world .agent-card.sc-dragging {
  cursor: grabbing;
  opacity: 0.96;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.10),
    var(--shadow-md);
  transition: none; /* brak transition podczas przeciągania */
}

/* Wyłącz domyślny transition box-shadow kart podczas drag */
.sc-world .agent-card:not(.sc-dragging) {
  transition: box-shadow 200ms var(--ease-standard), opacity 200ms;
}

/* Blokuj zaznaczanie tekstu na całym dokumencie podczas drag */
body.sc-is-dragging {
  user-select: none;
  cursor: grabbing !important;
}
body.sc-is-dragging * {
  cursor: grabbing !important;
}

/* Pusty stan — wyśrodkowany na płaszczyźnie */
.sc-world .empty-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}
.sc-world .empty-state__btn {
  pointer-events: auto;
}

/* ---- Odznaka zoomu ---- */
.sc-zoom-badge {
  position: absolute;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 200;
  background: rgba(17, 21, 33, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  font-size: var(--font-size-xs);
  font-family: var(--font-family-mono);
  font-weight: var(--font-weight-semibold);
  color: var(--fg-2);
  pointer-events: none;
  user-select: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s var(--ease-standard), transform 0.2s var(--ease-standard);
}

.sc-zoom-badge--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Pasek zakładek kanw (Excel-style) ---- */
.canvas-tabs-bar {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0 var(--spacing-md) 0 var(--spacing-sm);
  background: var(--bg-1);
  border-top: 1px solid var(--border-subtle);
  min-height: 36px;
  overflow-x: auto;
  scrollbar-width: none;
  flex-shrink: 0;
}
.canvas-tabs-bar::-webkit-scrollbar { display: none; }

.canvas-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  font-size: var(--font-size-sm);
  font-family: var(--font-family-sans);
  border: none;
  border-right: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--fg-3);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s, color 0.12s;
  position: relative;
  min-width: 80px;
}
.canvas-tab:first-child { border-left: 1px solid var(--border-subtle); }

.canvas-tab:hover:not(.canvas-tab--active) {
  background: var(--bg-2);
  color: var(--fg-1);
}

.canvas-tab--active {
  background: var(--bg-0);
  color: var(--fg-0);
  font-weight: var(--font-weight-medium);
  border-bottom: 2px solid var(--brand-orange);
}

.canvas-tab__name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
}

.canvas-tab__rename-input {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--brand-orange);
  color: var(--fg-0);
  font-size: var(--font-size-sm);
  font-family: var(--font-family-sans);
  font-weight: var(--font-weight-medium);
  outline: none;
  padding: 0;
  min-width: 60px;
  max-width: 140px;
}

.canvas-tab__delete-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--fg-4);
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}
.canvas-tab:hover .canvas-tab__delete-btn,
.canvas-tab--active .canvas-tab__delete-btn {
  display: inline-flex;
}
.canvas-tab__delete-btn:hover {
  background: rgba(239, 68, 68, 0.18);
  color: var(--error, #f87171);
}

.canvas-tab-add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  min-width: 32px;
  font-size: 18px;
  line-height: 1;
  background: transparent;
  border: none;
  color: var(--fg-4);
  cursor: pointer;
  border-radius: 0;
  align-self: stretch;
  transition: background 0.12s, color 0.12s;
  padding-bottom: 2px;
}
.canvas-tab-add-btn:hover {
  background: var(--bg-2);
  color: var(--fg-1);
}

/* Hint Ctrl+Scroll widoczny gdy najedziesz kursorem na canvas (bez zoomu) */
.senior-canvas:hover .sc-zoom-hint {
  opacity: 1;
}

.sc-zoom-hint {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: rgba(17, 21, 33, 0.70);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  font-size: 11px;
  color: var(--fg-4);
  pointer-events: none;
  user-select: none;
  opacity: 0;
  transition: opacity 0.3s var(--ease-standard);
  white-space: nowrap;
}