#file-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  max-width: 94vw;
  max-height: 88vh;
  display: none;
  flex-direction: column;
  z-index: 100;
}
#file-panel.visible { display: flex; }

#file-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid rgba(255,215,0,0.12);
  margin-bottom: 0.4rem;
}
#file-title { color: #ffd700; font-size: 0.8rem; word-break: break-all; }
#file-close {
  background: none;
  border: none;
  color: #fff8e7;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0.5;
}
#file-close:hover { opacity: 1; }

#file-meta {
  font-size: 0.6rem;
  opacity: 0.45;
  margin-bottom: 0.4rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
#file-meta span {
  padding: 0.12rem 0.35rem;
  background: rgba(255,255,255,0.04);
  border-radius: 3px;
}