/* =============================================================
 * 南京财经大学校徽 · Three.js 3D 交互展区样式
 * 设计语言与站点保持一致：暗色画布 + 荧光黄绿点缀 + 等宽字体标签
 * ============================================================= */

/* ---------------- 1. 展区容器（Hero 右栏） ---------------- */
.hero-badge {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 100%;
}

/* ---------------- 2. 3D 舞台：正方形画布容器 ---------------- */
.badge-stage {
  position: relative;
  width: 100%;
  max-width: 460px;
  margin-inline: auto;
  aspect-ratio: 1 / 1;
  border-radius: 28px;
  /* 校徽背后的氛围光晕（南财红 + 站点荧光色双重微光） */
  background:
    radial-gradient(circle at 50% 46%, rgba(200, 16, 46, .16), transparent 62%),
    radial-gradient(circle at 68% 26%, rgba(201, 255, 26, .07), transparent 55%),
    var(--surface, #0e161b);
  border: 1px solid var(--line);
  overflow: hidden;
}

/* 细网格底纹，呼应 Hero 网格背景 */
.badge-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 78%);
  pointer-events: none;
}

/* ---------------- 3. 渲染画布 ---------------- */
#badgeCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;          /* 关键：允许画布捕获触摸手势（拖拽旋转） */
  cursor: grab;
}
#badgeCanvas.is-dragging,
#badgeCanvas:active { cursor: grabbing; }

/* 状态角标 */
.badge-stage__state {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(5, 5, 7, .62);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--ink-dim);
  pointer-events: none;
}
.badge-stage__state i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
/* 拖拽中：指示灯转为暖色并闪烁 */
.badge-stage[data-rotate-state="dragging"] .badge-stage__state i {
  background: #ffb347;
  box-shadow: 0 0 8px #ffb347;
  animation: badgeBlink 1s ease-in-out infinite;
}

/* ---------------- 4. 加载提示 ---------------- */
.badge-loading {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ink-faint);
  background: var(--surface);
  transition: opacity .5s var(--ease-out), visibility .5s;
}
.badge-loading.is-hidden { opacity: 0; visibility: hidden; }
.badge-loading__spinner {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .12);
  border-top-color: var(--accent);
  animation: badgeSpin 0.9s linear infinite;
}

/* ---------------- 5. 静态兜底（WebGL 不可用时显示） ---------------- */
.badge-fallback {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: none;
  place-content: center;
  justify-items: center;
  gap: 10px;
  padding: 6% 8%;
  background: var(--surface);
  text-align: center;
}
.badge-fallback.is-active { display: grid; }
.badge-fallback svg {
  width: min(100%, 300px);
  height: auto;
  filter: drop-shadow(0 12px 30px rgba(200, 16, 46, .25));
}
.badge-fallback__note {
  font-size: 12px;
  color: var(--ink-faint);
}

/* ---------------- 6. 信息面板（标题 / 控制按钮 / 操作提示） ---------------- */
.badge-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 460px;
  margin-inline: auto;
  width: 100%;
}

.badge-panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.badge-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.badge-title span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--ink-faint);
}

/* 实时状态（自动旋转 / 拖拽中 / 已暂停） */
.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-dim);
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.badge-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  transition: background .3s, box-shadow .3s;
}
.badge-stage[data-rotate-state="dragging"] ~ .badge-panel .badge-status i,
.badge-stage[data-rotate-state="paused"] ~ .badge-panel .badge-status i {
  background: #ffb347;
  box-shadow: 0 0 8px #ffb347;
}
.badge-stage[data-rotate-state="off"] ~ .badge-panel .badge-status i {
  background: var(--ink-faint);
  box-shadow: none;
}

/* 控制按钮组 */
.badge-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-dim);
  transition: color .25s, border-color .25s, background .25s, transform .25s var(--ease-out);
}
.badge-btn:hover {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
  transform: translateY(-1px);
}
.badge-btn:active { transform: translateY(0); }
.badge-btn svg { width: 13px; height: 13px; fill: currentColor; }

/* 操作提示 */
.badge-tip {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-faint);
}
.badge-tip b {
  color: var(--ink-dim);
  font-weight: 600;
}

/* ---------------- 7. 关键帧 ---------------- */
@keyframes badgeSpin { to { transform: rotate(360deg); } }
@keyframes badgeBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

/* ---------------- 8. 响应式 ---------------- */
@media (max-width: 1023px) {
  .badge-stage { max-width: 400px; }
}

@media (max-width: 640px) {
  .badge-stage {
    max-width: 320px;
    border-radius: 22px;
  }
  .badge-panel { max-width: 320px; }
  .badge-title { font-size: 17px; }
  .badge-tip { font-size: 12px; }
}

/* ---------------- 9. 减弱动效偏好 ---------------- */
@media (prefers-reduced-motion: reduce) {
  .badge-loading__spinner { animation: none; }
}