/* 复用主站 CSS 变量 */
:root {
  --bg-start: #f7f8fa;
  --bg-end: #f2f4f7;
  --card-bg: rgba(255, 255, 255, 0.82);
  --card-border: rgba(15, 23, 42, 0.10);
  --card-shadow: 0 1px 1px rgba(15, 23, 42, 0.04), 0 10px 30px rgba(15, 23, 42, 0.06);
  --card-shadow-hover: 0 2px 2px rgba(15, 23, 42, 0.06), 0 18px 48px rgba(15, 23, 42, 0.10);
  --text: #0f172a;
  --subtext: #475569;
  --accent: #4f46e5;
  --link: #4f46e5;
  --link-hover: #4338ca;
  --accent-border: rgba(79, 70, 229, 0.40);
  --on-accent: #ffffff;
  --btn-bg: rgba(255, 255, 255, 0.70);
  --btn-bg-hover: rgba(255, 255, 255, 0.92);
  --btn-icon: rgba(15, 23, 42, 0.72);
  --btn-shadow: 0 1px 1px rgba(15, 23, 42, 0.05), 0 10px 30px rgba(15, 23, 42, 0.08);
  --focus-ring: 0 0 0 3px rgba(79, 70, 229, 0.15);
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #22c55e;
}

[data-theme="dark"] {
  --bg-start: #0b1220;
  --bg-end: #070d19;
  --card-bg: rgba(17, 24, 39, 0.82);
  --card-border: rgba(148, 163, 184, 0.18);
  --card-shadow: 0 1px 1px rgba(0, 0, 0, 0.25), 0 18px 60px rgba(0, 0, 0, 0.45);
  --card-shadow-hover: 0 2px 2px rgba(0, 0, 0, 0.35), 0 24px 80px rgba(0, 0, 0, 0.55);
  --text: #e5e7eb;
  --subtext: #9ca3af;
  --accent: rgba(165, 180, 252, 0.6);
  --link: #a5b4fc;
  --link-hover: #c7d2fe;
  --accent-border: rgba(165, 180, 252, 0.34);
  --on-accent: #0b1220;
  --btn-bg: rgba(17, 24, 39, 0.70);
  --btn-bg-hover: rgba(17, 24, 39, 0.92);
  --btn-icon: rgba(229, 231, 235, 0.78);
  --btn-shadow: 0 1px 1px rgba(0, 0, 0, 0.25), 0 18px 60px rgba(0, 0, 0, 0.45);
  --focus-ring: 0 0 0 3px rgba(165, 180, 252, 0.18);
  --danger: #f87171;
  --danger-hover: #ef4444;
  --success: #4ade80;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(145deg, var(--bg-start) 0%, var(--bg-end) 100%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background .3s ease, color .3s ease;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.05); }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); border-radius: 4px; }
[data-theme="dark"] ::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.25); }

/* ========== 工具栏 ========== */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  flex-wrap: wrap;
}

.toolbar-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-right: auto;
  white-space: nowrap;
}

.toolbar-title a {
  color: var(--subtext);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 400;
  margin-left: 0.75rem;
}
.toolbar-title a:hover { color: var(--link); }

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--btn-bg);
  color: var(--text);
  cursor: pointer;
  transition: all .15s ease;
  white-space: nowrap;
  font-family: inherit;
}
.btn:hover { background: var(--btn-bg-hover); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.btn-accent {
  background: var(--link);
  color: var(--on-accent);
  border-color: transparent;
}
.btn-accent:hover { background: var(--link-hover); }

.btn-danger { color: var(--danger); }
.btn-danger:hover { background: rgba(239,68,68,0.08); }

.btn-sm {
  padding: 0.25rem 0.55rem;
  font-size: 0.78rem;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  justify-content: center;
  border-radius: 50%;
  font-size: 1rem;
}

/* ========== 主编辑区 ========== */
.editor-main {
  max-width: 1400px;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
}

/* ========== 分组卡片 ========== */
.group-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  box-shadow: var(--card-shadow);
  margin-bottom: 1rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: box-shadow .2s ease;
}

.group-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--card-border);
}

.group-drag-handle {
  cursor: grab;
  color: var(--subtext);
  font-size: 1.1rem;
  padding: 0.15rem 0.25rem;
  user-select: none;
  opacity: 0.5;
  transition: opacity .15s;
}
.group-drag-handle:hover { opacity: 1; }
.group-drag-handle:active { cursor: grabbing; }

.group-name-input {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text);
  padding: 0.2rem 0.4rem;
  border-radius: 6px;
  outline: none;
  font-family: inherit;
}
.group-name-input:focus {
  background: var(--btn-bg);
  box-shadow: var(--focus-ring);
}

.group-actions {
  display: flex;
  gap: 0.35rem;
}

/* 导航项网格 - 与首页一致的卡片布局 */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.72rem;
  padding: 0.75rem;
  min-height: 8px;
}

.nav-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.7rem 0.9rem;
  box-shadow: var(--card-shadow);
  transition: box-shadow .2s ease, border-color .2s ease;
  cursor: default;
  position: relative;
  overflow: hidden;
}
.nav-card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent-border);
  z-index: 5;
}

.nav-card-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-drag-handle {
  cursor: grab;
  color: var(--subtext);
  font-size: 0.95rem;
  user-select: none;
  opacity: 0.35;
  transition: opacity .15s;
  flex-shrink: 0;
}
.nav-card:hover .nav-drag-handle { opacity: 0.7; }
.nav-drag-handle:hover { opacity: 1 !important; }
.nav-drag-handle:active { cursor: grabbing; }

.nav-icon-preview {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: 4px;
  object-fit: contain;
  background: rgba(128,128,128,0.08);
}

.nav-name {
  flex: 1;
  font-weight: 600;
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.nav-card-desc,
.nav-card-url {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--subtext);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
  opacity: 0.8;
}

.nav-card-url {
  opacity: 0.5;
  font-family: "Cascadia Code", "Fira Code", Consolas, monospace;
}

.nav-actions {
  display: flex;
  flex-direction: column;
  gap: 3px;
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s;
  z-index: 10;
}
.nav-actions .btn.btn-sm {
  width: 26px;
  height: 26px;
  padding: 0;
  font-size: 0.75rem;
  min-width: 0;
  line-height: 1;
  border-radius: 6px;
  box-shadow: var(--card-shadow);
  background: var(--card-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-card:hover .nav-actions { opacity: 1; pointer-events: auto; }

/* 深色模式 - 按钮描边更清晰 */
[data-theme="dark"] .nav-actions .btn.btn-sm {
  border-color: var(--accent-border);
}
[data-theme="dark"] .group-actions .btn {
  border-color: var(--accent-border);
}
[data-theme="dark"] .btn {
  border-color: rgba(148, 163, 184, 0.30);
}

/* 添加分组 / 添加导航 按钮 */
.add-group-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  width: 100%;
  padding: 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  border: 2px dashed var(--card-border);
  border-radius: 14px;
  background: transparent;
  color: var(--subtext);
  cursor: pointer;
  transition: all .15s ease;
  font-family: inherit;
  margin-bottom: 1rem;
}
.add-group-btn:hover {
  border-color: var(--accent-border);
  color: var(--link);
  background: var(--btn-bg);
}

.add-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  width: 100%;
  padding: 0.5rem;
  font-size: 0.8rem;
  border: none;
  border-top: 1px solid var(--card-border);
  border-radius: 0 0 14px 14px;
  background: transparent;
  color: var(--subtext);
  cursor: pointer;
  transition: all .15s ease;
  font-family: inherit;
}
.add-nav-btn:hover {
  color: var(--link);
  background: var(--btn-bg);
}

/* ========== 拖拽样式 ========== */
.sortable-ghost {
  opacity: 0.35;
}

.sortable-chosen {
  box-shadow: var(--card-shadow-hover);
}

.sortable-drag {
  opacity: 0.9;
}

.group-card.sortable-ghost {
  border: 2px dashed var(--accent-border);
  background: transparent;
  box-shadow: none;
}

.nav-card.sortable-ghost {
  opacity: 0.35;
  border: 2px dashed var(--accent-border);
}

/* ========== 模态框 ========== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: var(--card-shadow-hover);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn .2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--card-border);
}

.modal-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--subtext);
  cursor: pointer;
  border-radius: 8px;
  font-size: 1.2rem;
  transition: background .15s;
}
.modal-close:hover { background: var(--btn-bg); }

.modal-header-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* 全屏模态框 */
.modal.fullscreen {
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  height: 100%;
  border-radius: 12px;
}
.modal.fullscreen .yaml-textarea {
  min-height: 0;
  flex: 1;
}
.modal.fullscreen .modal-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal.fullscreen {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-body { padding: 1.25rem; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--card-border);
}

.import-modal-footer {
  justify-content: space-between;
}
.modal-footer-right {
  display: flex;
  gap: 0.5rem;
}

/* ========== 表单 ========== */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--subtext);
  margin-bottom: 0.3rem;
}

.form-input {
  width: 100%;
  padding: 0.5rem 0.7rem;
  font-size: 0.88rem;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--btn-bg);
  color: var(--text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
}
.form-input:focus {
  border-color: var(--accent-border);
  box-shadow: var(--focus-ring);
}

.form-input-row {
  display: flex;
  gap: 0.5rem;
}
.form-input-row .form-input { flex: 1; }

textarea.form-input {
  resize: vertical;
  min-height: 120px;
  font-family: "Cascadia Code", "Fira Code", "JetBrains Mono", Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.5;
}

/* YAML模态框 textarea 更大 */
.yaml-textarea {
  min-height: 540px;
}

/* ========== 获取信息按钮 ========== */
.fetch-btn {
  white-space: nowrap;
  flex-shrink: 0;
}
.fetch-btn.loading {
  pointer-events: none;
  opacity: 0.6;
}

/* ========== 图标模式切换 ========== */
.icon-mode-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 0.65rem;
}

.icon-mode-tab {
  flex: 1;
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--subtext);
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
  text-align: center;
}
.icon-mode-tab.active {
  background: var(--link);
  color: var(--on-accent);
}

.icon-url-section,
.icon-emoji-section {
  display: none;
}
.icon-url-section.active,
.icon-emoji-section.active {
  display: block;
}

/* Favicon 候选列表 */
.favicon-candidates {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.favicon-candidate {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--btn-bg);
  cursor: pointer;
  transition: all .15s;
  font-size: 0.72rem;
  color: var(--subtext);
  max-width: 100%;
  overflow: hidden;
}
.favicon-candidate:hover {
  border-color: var(--accent-border);
  background: var(--btn-bg-hover);
}
.favicon-candidate.selected {
  border-color: var(--link);
  background: rgba(79, 70, 229, 0.08);
}
[data-theme="dark"] .favicon-candidate.selected {
  background: rgba(165, 180, 252, 0.1);
}

.favicon-candidate img {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border-radius: 2px;
}

.favicon-candidate span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========== 本地图标选择器 ========== */
.local-icon-picker {
  margin-top: 0.5rem;
}
.local-icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 0.4rem;
  margin-top: 0.4rem;
  max-height: 200px;
  overflow-y: auto;
  padding: 0.5rem;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--btn-bg);
}
.local-icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.4rem 0.25rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--card-bg);
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
  overflow: hidden;
}
.local-icon-item:hover {
  border-color: var(--accent-border);
}
.local-icon-item.selected {
  border-color: var(--link);
  background: rgba(79, 70, 229, 0.08);
}
[data-theme="dark"] .local-icon-item.selected {
  background: rgba(165, 180, 252, 0.1);
}
.local-icon-item img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 4px;
  background: transparent;
}
.local-icon-item span {
  font-size: 0.66rem;
  color: var(--subtext);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  line-height: 1.1;
}
.local-icon-empty {
  margin-top: 0.4rem;
  padding: 0.55rem 0.7rem;
  font-size: 0.75rem;
  color: var(--subtext);
  border: 1px dashed var(--card-border);
  border-radius: 8px;
  background: var(--btn-bg);
}
.local-icon-empty code {
  padding: 0.05rem 0.3rem;
  background: rgba(0,0,0,0.05);
  border-radius: 4px;
  font-size: 0.72rem;
}
[data-theme="dark"] .local-icon-empty code {
  background: rgba(255,255,255,0.08);
}

/* ========== Emoji 选择器 ========== */
.emoji-search {
  margin-bottom: 0.5rem;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
  gap: 2px;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 0.4rem;
  background: var(--btn-bg);
}

.emoji-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 1.25rem;
  border-radius: 6px;
  cursor: pointer;
  border: none;
  background: transparent;
  transition: background .1s;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
}
.emoji-item:hover {
  background: var(--card-bg);
}
.emoji-item.selected {
  background: rgba(79, 70, 229, 0.12);
  box-shadow: inset 0 0 0 2px var(--link);
}

.emoji-category-label {
  grid-column: 1 / -1;
  font-size: 0.7rem;
  color: var(--subtext);
  padding: 0.3rem 0.2rem 0.15rem;
  font-weight: 600;
}

/* 图标预览 */
.icon-preview-area {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: var(--btn-bg);
  margin-top: 0.65rem;
  min-height: 42px;
}
.icon-preview-area img {
  width: 24px;
  height: 24px;
  border-radius: 4px;
}
.icon-preview-area .emoji-preview {
  font-size: 1.4rem;
  line-height: 1;
}
.icon-preview-label {
  font-size: 0.78rem;
  color: var(--subtext);
}

/* ========== Toast 提示 ========== */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 0.6rem 1.2rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
  background: #1e293b;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: all .25s ease;
}
[data-theme="dark"] .toast { background: #334155; }
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--subtext);
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.empty-state p { font-size: 0.9rem; margin-bottom: 1rem; }

/* ========== 描述/网址切换按钮 ========== */
.toggle-btn-group {
  display: inline-flex;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--btn-bg);
}
.toggle-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--subtext);
  cursor: pointer;
  transition: all .15s ease;
  font-family: inherit;
  white-space: nowrap;
}
.toggle-btn:hover {
  color: var(--text);
}
.toggle-btn.active {
  background: rgba(79, 70, 229, 0.10);
  color: var(--text);
  font-weight: 600;
}
[data-theme="dark"] .toggle-btn.active {
  background: rgba(165, 180, 252, 0.15);
  color: var(--text);
}

/* ========== 底部版权 ========== */
footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  font-size: 0.85rem;
  color: var(--subtext);
  opacity: 0.65;
}
footer a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}
footer a:hover {
  color: var(--link);
  text-decoration: underline;
}

/* ========== 响应式 - 与首页一致 ========== */
@media (max-width: 1199px) {
  .nav-grid { grid-template-columns: repeat(5, 1fr); gap: 0.65rem; }
}
@media (max-width: 899px) {
  .nav-grid { grid-template-columns: repeat(4, 1fr); gap: 0.6rem; }
}
@media (max-width: 767px) {
  .nav-grid { grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
  .toolbar {
    padding: 0.6rem 0.75rem;
    gap: 0.35rem;
  }
  .toolbar-title { font-size: 1rem; width: 100%; margin-bottom: 0.25rem; }
  .editor-main { padding: 0 0.5rem; margin-top: 1rem; }
  .group-header { padding: 0.65rem 0.75rem; flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .nav-grid { grid-template-columns: repeat(2, 1fr); gap: 0.48rem; padding: 0.5rem; }
  .nav-card { padding: 0.5rem 0.65rem; }
  .modal { border-radius: 12px; }
  .modal-body { padding: 1rem; }
}
@media (max-width: 280px) {
  .nav-grid { grid-template-columns: 1fr; gap: 0.36rem; }
}