/* ============================================================
   whiteboard.css — стили доски для рисования
   ============================================================ */

.wb-wrap {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 130px);
  min-height: 400px;
  gap: 10px;
}

/* ===== Панель инструментов ===== */
.wb-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 10px 14px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, .05);
  flex-shrink: 0;
}

.wb-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-right: 10px;
  border-right: 1px solid #e2e8f0;
}
.wb-group:last-child { border-right: none; padding-right: 0; }

.wb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #334155;
  cursor: pointer;
  font-size: 18px;
  transition: background .12s, border-color .12s, color .12s;
  user-select: none;
  padding: 0;
  font: inherit;
}
.wb-btn:hover {
  background: #f1f5f9;
  color: #1e293b;
}
.wb-btn.active {
  background: #7c3aed;
  color: #fff;
  border-color: #7c3aed;
}
.wb-btn.danger:hover {
  background: #fee2e2;
  color: #b91c1c;
}

/* Палитра цветов */
.wb-colors {
  display: flex;
  gap: 6px;
  align-items: center;
}
.wb-color {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .12s, border-color .12s;
  padding: 0;
}
.wb-color:hover { transform: scale(1.15); }
.wb-color.active {
  border-color: #1e293b;
  box-shadow: 0 0 0 2px #fff inset;
}

/* Толщина */
.wb-widths {
  display: flex;
  gap: 4px;
  align-items: center;
}
.wb-width {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.wb-width:hover { background: #f1f5f9; }
.wb-width.active { background: #ede9fe; border-color: #7c3aed; }
.wb-width-dot {
  border-radius: 50%;
  background: #334155;
}
.wb-width.active .wb-width-dot { background: #7c3aed; }

/* Разделитель */
.wb-sep {
  width: 1px;
  height: 24px;
  background: #e2e8f0;
}

/* Инфо в конце панели */
.wb-info {
  margin-left: auto;
  font-size: 12px;
  color: #94a3b8;
}
.wb-info b { color: #475569; }

/* ===== Холст ===== */
.wb-canvas-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(15, 23, 42, .05);
  cursor: crosshair;
}
.wb-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}
.wb-canvas.eraser { cursor: cell; }
.wb-canvas.text-mode { cursor: text; }
.wb-canvas.pan-mode { cursor: grab; }

/* ===== Тёмная тема админки ===== */
body.dark .wb-toolbar {
  background: #23232a;
  border-color: #2f2f3a;
}
body.dark .wb-group { border-right-color: #2f2f3a; }
body.dark .wb-btn { color: #cbd5e1; }
body.dark .wb-btn:hover { background: #2f2f3a; color: #e5e7eb; }
body.dark .wb-btn.active { background: #7c3aed; color: #fff; }
body.dark .wb-btn.danger:hover { background: rgba(127, 29, 29, .35); color: #fca5a5; }
body.dark .wb-color.active { border-color: #fff; }
body.dark .wb-width:hover { background: #2f2f3a; }
body.dark .wb-width.active { background: #4c1d95; border-color: #a78bfa; }
body.dark .wb-width-dot { background: #cbd5e1; }
body.dark .wb-width.active .wb-width-dot { background: #a78bfa; }
body.dark .wb-sep { background: #2f2f3a; }
body.dark .wb-info { color: #6b7280; }
body.dark .wb-info b { color: #cbd5e1; }
body.dark .wb-canvas-wrap {
  background: #1a1d24;
  border-color: #2f2f3a;
}

/* ===== Ночной режим ТВ (белый холст наоборот = тёмный) ===== */
body.night .wb-canvas-wrap {
  background: #23232a;
  border-color: #2f2f3a;
}

/* ===== ТВ-версия ===== */
body.tv-page .wb-wrap {
  height: calc(100vh - 110px);
  padding: 0;
}
body.tv-page .wb-toolbar { display: none; }  /* на ТВ только просмотр */
body.tv-page .wb-canvas-wrap { border-radius: 16px; }
body.tv-page .wb-canvas { cursor: default; }

/* ===== Мобильная адаптация ===== */
@media (max-width: 900px) {
  .wb-toolbar {
    padding: 8px 10px;
    gap: 6px;
  }
  .wb-btn {
    width: 34px;
    height: 34px;
    font-size: 16px;
  }
  .wb-group { padding-right: 6px; }
  .wb-color { width: 22px; height: 22px; }
  .wb-info { display: none; }
}