.call-screen {
  position: absolute;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  z-index: 100;
  height: 100%;
}

.video-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
  padding: 8px;
  overflow-y: auto;
}

.video-container {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/9;
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-container.local video {
  transform: scaleX(-1);
}

.video-label {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(0,0,0,0.65);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: #fff;
}

.video-muted-icon {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0,0,0,0.5);
  padding: 4px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.call-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-header);
  border-top: 1px solid var(--border);
}

.control-btn {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-round);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  background: var(--bg-input);
  color: var(--text-primary);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-btn:hover {
  transform: scale(1.08);
}

.control-btn.active {
  background: var(--green);
  color: #fff;
}

.control-btn.hang-up {
  background: var(--red);
  color: #fff;
}

.control-btn.hang-up:hover {
  background: #c62828;
}

/* Chat overlay during call */
.call-chat-overlay {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 60px;
  width: 340px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 110;
}

.call-chat-overlay .chat-messages {
  flex: 1;
}

.call-chat-overlay .chat-input-area {
  padding: 8px;
}