/* ==========================================================================
   PARTICIPANT 3D ORBITING SPHERE STYLESHEET
   Dự án: uxcampvietnam.github.io
   Tuân thủ nghiêm ngặt Token-Driven Design System (ui-design-skill.md)
   Hỗ trợ hoàn toàn Dark Mode / Light Mode và Mobile Responsive
   ========================================================================== */

/* Ngăn chặn thanh cuộn ngang do 100vw mà không phá vỡ position: sticky */
html {
  overflow-x: clip;
}



.participant-sphere-wrapper {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  left: 0 !important;
  top: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden !important;
  box-sizing: border-box;
  z-index: 15;
  pointer-events: none;
}

#participant-sphere-canvas {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  display: block !important;
  outline: none;
  pointer-events: none;
}

/* Vùng tương tác drag xoay quả cầu: Hình vuông bọc gọn gàng quanh quả cầu */
.participant-sphere-interaction {
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  width: var(--sphere-box-size, 340px);
  height: var(--sphere-box-size, 340px);
  pointer-events: auto !important;
  touch-action: none !important;
  cursor: grab;
  outline: none;
  z-index: 20;
  border-radius: 0 !important;
  background: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.participant-sphere-interaction:active {
  cursor: grabbing;
}

/* 2. Loading State */
.participant-sphere-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans-family, "Work Sans", sans-serif);
  font-size: 14px;
  color: var(--secondary-text, #666666);
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.participant-sphere-loading.hidden {
  opacity: 0;
  pointer-events: none;
}

.participant-sphere-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--main-color, #eb4f0c);
  border-radius: 50%;
  animation: p-sphere-spin 0.8s linear infinite;
}

@keyframes p-sphere-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-color-scheme: dark) {
  .participant-sphere-spinner {
    border-color: rgba(255, 255, 255, 0.15);
    border-top-color: var(--main-color, #eb4f0c);
  }
}