/* 드래그 앤 드롭 스타일 */
.dragging {
    opacity: 0.5;
    border: 2px dashed #4A86E8 !important;
    background-color: rgba(74, 134, 232, 0.1) !important;
}

.drag-over {
    background-color: rgba(74, 134, 232, 0.2) !important;
    border: 2px dashed #4A86E8 !important;
}

.folder-content.drag-over {
    min-height: 30px;
    padding: 5px;
    margin: 5px 0;
    border-radius: 4px;
}

#file-list {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    padding-bottom: 0;
    position: relative;
}

#file-list:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    background-color: transparent;
    border: none;
    transition: all 0.2s ease;
    border-radius: 4px;
    z-index: 1;
}

#file-list.drag-over {
    background-color: rgba(74, 134, 232, 0.05) !important;
    min-height: 100px;
    border: none !important;
}

.file-item.drag-over,
.folder-item.drag-over > .folder-header {
    background-color: rgba(74, 134, 232, 0.2) !important;
    border: 2px dashed #4A86E8 !important;
    border-radius: 4px;
}

.drag-possible {
    background-color: rgba(46, 204, 113, 0.1) !important;
    border: 2px dashed #2ecc71 !important;
}

.ghost {
    opacity: 0.3;
    background-color: #f5f5f5;
}

/* 드래그 애니메이션 */
@keyframes dragPulse {
    0% { box-shadow: 0 0 0 0 rgba(74, 134, 232, 0.4); }
    70% { box-shadow: 0 0 0 5px rgba(74, 134, 232, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 134, 232, 0); }
}

.dragging {
    animation: dragPulse 1.5s infinite;
}

/* 파일 목록 스타일 */
.sidebar-section {
    position: relative;
    display: flex;
    flex-direction: column;
    padding-bottom: 0;
}

/* 최상위로 이동 드롭존 */
.drop-zone-indicator {
    position: relative;
    height: 40px;
    margin: 0;
    border-radius: 4px;
    background-color: transparent;
    border: 2px dashed transparent;
    display: none; /* 기본적으로 숨김 */
}

.drop-zone-indicator:after {
    content: "↑ 최상위로 이동";
    position: absolute;
    left: 28px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(74, 134, 232, 0.7);
    font-size: 12px;
}

/* 드래그 중일 때만 표시 */
body.dragging .drop-zone-indicator {
    display: block;
}

.drop-zone-indicator.drag-over {
    background-color: rgba(74, 134, 232, 0.1);
    border-color: #4A86E8;
}

#file-list {
    padding-bottom: 0;
}

.sidebar-section {
    padding-bottom: 0;
}

/* 드래그앤드롭 관련 스타일 제거 */

/* ── 채팅 패널 드롭존 ─────────────────────── */
.chat-container {
  position: relative;
}

.chat-container.is-chat-drag-over::before {
  content: attr(data-drop-hint);
  position: absolute;
  inset: 8px;
  background: rgba(99, 102, 241, 0.07);
  border: 2px dashed #6366F1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6366F1;
  font-size: 13px;
  font-weight: 600;
  z-index: 10;
  pointer-events: none;
  font-family: 'Pretendard Variable', sans-serif;
}