/* css/file-picker.css */
/* 專屬現代化 HUD 檔案總管網格卡片挑選器 (Explorer Grid File Picker) */

.hud-file-picker-backdrop {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(2, 5, 12, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.hud-file-picker-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.hud-file-picker-modal {
  width: 92vw;
  max-width: 980px;
  height: 86vh;
  max-height: 760px;
  background: rgba(4, 12, 28, 0.96);
  border: 1px solid rgba(0, 243, 255, 0.35);
  border-radius: 14px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.9), 0 0 35px rgba(0, 243, 255, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.96) translateY(8px);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.hud-file-picker-backdrop.active .hud-file-picker-modal {
  transform: scale(1) translateY(0);
}

/* Modal 頂部標頭 */
.hud-picker-header {
  padding: 14px 22px;
  background: rgba(8, 20, 44, 0.8);
  border-bottom: 1px solid rgba(0, 243, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hud-picker-header-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-picker-header-icon {
  font-size: 20px;
  color: var(--hud-cyan, #00f3ff);
  filter: drop-shadow(0 0 8px rgba(0, 243, 255, 0.6));
}

.hud-picker-title-text {
  font-size: 16px;
  font-weight: 600;
  color: #e2f5ff;
  letter-spacing: 0.5px;
}

.hud-picker-subtitle-text {
  font-size: 12px;
  color: #7fa8bf;
  margin-top: 1px;
}

.hud-picker-close-btn {
  background: transparent;
  border: none;
  color: #7fa8bf;
  font-size: 18px;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
}

.hud-picker-close-btn:hover {
  background: rgba(255, 62, 62, 0.2);
  color: #ff5252;
}

/* 檔案總管導覽列 (Breadcrumbs & Navigation Bar) */
.hud-picker-nav-bar {
  padding: 10px 22px;
  background: rgba(5, 15, 34, 0.65);
  border-bottom: 1px solid rgba(0, 243, 255, 0.12);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-picker-nav-btn {
  background: rgba(0, 243, 255, 0.08);
  border: 1px solid rgba(0, 243, 255, 0.22);
  color: #00f3ff;
  border-radius: 6px;
  width: 32px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.16s ease;
  flex-shrink: 0;
}

.hud-picker-nav-btn:hover:not(:disabled) {
  background: rgba(0, 243, 255, 0.2);
  box-shadow: 0 0 8px rgba(0, 243, 255, 0.3);
}

.hud-picker-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  border-color: rgba(127, 168, 191, 0.15);
  color: #7fa8bf;
}

.hud-picker-breadcrumbs {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  white-space: nowrap;
  font-size: 13px;
  color: #8bb2c9;
  user-select: none;
}

.hud-picker-breadcrumbs::-webkit-scrollbar {
  height: 3px;
}

.hud-picker-breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  color: #a4cbde;
  transition: all 0.15s ease;
}

.hud-picker-breadcrumb-item:hover {
  background: rgba(0, 243, 255, 0.12);
  color: #00f3ff;
}

.hud-picker-breadcrumb-item.active {
  color: #e2f5ff;
  font-weight: 600;
  cursor: default;
  background: rgba(0, 243, 255, 0.08);
}

.hud-picker-breadcrumb-sep {
  color: #43647a;
  font-size: 11px;
}

/* 篩選與搜尋工具列 */
.hud-picker-toolbar {
  padding: 10px 22px;
  border-bottom: 1px solid rgba(0, 243, 255, 0.1);
  background: rgba(4, 12, 26, 0.45);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.hud-picker-search-box {
  position: relative;
  width: 280px;
  flex-shrink: 0;
}

.hud-picker-search-box i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #557991;
  font-size: 13px;
}

.hud-picker-search-input {
  width: 100%;
  padding: 7px 32px 7px 34px;
  background: rgba(2, 7, 18, 0.7);
  border: 1px solid rgba(0, 243, 255, 0.2);
  border-radius: 8px;
  color: #e2f5ff;
  font-size: 12px;
  font-family: var(--font-sans, 'Inter', sans-serif);
  outline: none;
  transition: all 0.18s ease;
}

.hud-picker-search-input:focus {
  border-color: var(--hud-cyan, #00f3ff);
  box-shadow: 0 0 10px rgba(0, 243, 255, 0.25);
}

.hud-picker-filter-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
}

.hud-picker-filter-chips::-webkit-scrollbar {
  height: 3px;
}

.hud-picker-chip {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  cursor: pointer;
  background: rgba(0, 243, 255, 0.05);
  border: 1px solid rgba(0, 243, 255, 0.15);
  color: #8bb2c9;
  white-space: nowrap;
  transition: all 0.15s ease;
  user-select: none;
}

.hud-picker-chip:hover {
  background: rgba(0, 243, 255, 0.12);
  color: #e2f5ff;
}

.hud-picker-chip.active {
  background: rgba(0, 243, 255, 0.2);
  border-color: var(--hud-cyan, #00f3ff);
  color: #00f3ff;
  font-weight: 600;
  box-shadow: 0 0 8px rgba(0, 243, 255, 0.25);
}

/* 內容網格展示區 */
.hud-picker-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
}

.hud-picker-body::-webkit-scrollbar {
  width: 6px;
}

.hud-picker-body::-webkit-scrollbar-thumb {
  background: rgba(0, 243, 255, 0.25);
  border-radius: 3px;
}

/* 檔案總管網格 (Explorer Grid) */
.hud-picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 14px;
}

/* 資料夾卡片 (Folder Card) */
.hud-picker-card.folder-card {
  background: rgba(8, 22, 46, 0.55);
  border: 1px solid rgba(255, 184, 0, 0.2);
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all 0.18s ease;
  user-select: none;
  position: relative;
}

.hud-picker-card.folder-card:hover {
  background: rgba(12, 32, 68, 0.85);
  border-color: rgba(255, 184, 0, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), 0 0 12px rgba(255, 184, 0, 0.2);
}

.hud-picker-card.folder-card.selected {
  background: rgba(255, 184, 0, 0.15);
  border-color: #ffb800;
  box-shadow: 0 0 14px rgba(255, 184, 0, 0.35);
}

.hud-picker-folder-icon {
  font-size: 42px;
  color: #ffb800;
  margin: 10px 0;
  filter: drop-shadow(0 4px 8px rgba(255, 184, 0, 0.3));
}

.hud-picker-folder-name {
  font-size: 13px;
  font-weight: 500;
  color: #e2f5ff;
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hud-picker-folder-sub {
  font-size: 11px;
  color: #7fa8bf;
  margin-top: 4px;
}

/* 檔案卡片 (File Card with Thumbnail) */
.hud-picker-card.file-card {
  background: rgba(6, 18, 38, 0.6);
  border: 1px solid rgba(0, 243, 255, 0.16);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: all 0.18s ease;
  user-select: none;
  position: relative;
}

.hud-picker-card.file-card:hover {
  background: rgba(10, 28, 58, 0.88);
  border-color: rgba(0, 243, 255, 0.45);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 14px rgba(0, 243, 255, 0.2);
}

.hud-picker-card.file-card.selected {
  background: rgba(0, 243, 255, 0.15);
  border-color: var(--hud-cyan, #00f3ff);
  box-shadow: 0 0 16px rgba(0, 243, 255, 0.35);
}

/* 縮圖預覽區塊 */
.hud-picker-card-preview {
  width: 100%;
  height: 110px;
  background: rgba(2, 8, 20, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(0, 243, 255, 0.1);
}

.hud-picker-card-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.24s ease;
}

.hud-picker-card.file-card:hover .hud-picker-card-preview img {
  transform: scale(1.05);
}

.hud-picker-card-preview canvas {
  width: auto;
  max-width: 90%;
  height: 94%;
  object-fit: contain;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  border-radius: 3px;
}

.hud-picker-card-preview .hud-picker-big-icon {
  font-size: 40px;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.4));
}

.hud-picker-card-preview .hud-picker-big-icon.pdf { color: #ff5252; }
.hud-picker-card-preview .hud-picker-big-icon.doc { color: #3b82f6; }
.hud-picker-card-preview .hud-picker-big-icon.sheet { color: #10b981; }
.hud-picker-card-preview .hud-picker-big-icon.image { color: #a855f7; }
.hud-picker-card-preview .hud-picker-big-icon.code { color: #06b6d4; }
.hud-picker-card-preview .hud-picker-big-icon.archive { color: #f59e0b; }
.hud-picker-card-preview .hud-picker-big-icon.other { color: #849cb1; }

.hud-picker-preview-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 5px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #e2f5ff;
  letter-spacing: 0.5px;
}

/* 檔案卡片資訊 */
.hud-picker-card-meta {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hud-picker-card-name {
  font-size: 12px;
  font-weight: 500;
  color: #e2f5ff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.hud-picker-card-sub {
  font-size: 11px;
  color: #6d96ae;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 空狀態 */
.hud-picker-empty {
  margin: auto;
  padding: 50px 0;
  text-align: center;
  color: #557991;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hud-picker-empty i {
  font-size: 42px;
  opacity: 0.5;
}

/* 底部操作列 */
.hud-picker-footer {
  padding: 12px 22px;
  background: rgba(6, 17, 38, 0.9);
  border-top: 1px solid rgba(0, 243, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.hud-picker-local-btn {
  background: rgba(0, 243, 255, 0.08);
  border: 1px solid rgba(0, 243, 255, 0.3);
  color: #00f3ff;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.18s ease;
}

.hud-picker-local-btn:hover {
  background: rgba(0, 243, 255, 0.2);
  border-color: #00f3ff;
  box-shadow: 0 0 12px rgba(0, 243, 255, 0.35);
}

.hud-picker-selected-hint {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: #8bb2c9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 10px;
}

.hud-picker-selected-hint strong {
  color: #00f3ff;
  font-weight: 600;
}

.hud-picker-footer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hud-picker-cancel-btn {
  background: transparent;
  border: 1px solid rgba(127, 168, 191, 0.25);
  color: #9abed2;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.hud-picker-cancel-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #e2f5ff;
}

.hud-picker-submit-btn {
  background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
  border: 1px solid rgba(0, 243, 255, 0.5);
  color: #ffffff;
  border-radius: 8px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.18s ease;
  box-shadow: 0 0 12px rgba(0, 180, 216, 0.3);
}

.hud-picker-submit-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
  filter: grayscale(0.6);
}

.hud-picker-submit-btn:not(:disabled):hover {
  background: linear-gradient(135deg, #00d2f7 0%, #0096c7 100%);
  box-shadow: 0 0 16px rgba(0, 243, 255, 0.5);
  transform: translateY(-1px);
}