:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --text-soft: #6b7280;
  --text-muted: #9ca3af;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.04);

  /* role colors */
  --pm: #3b82f6;
  --pm-soft: #dbeafe;
  --pm-bg: #eff6ff;
  --architect: #8b5cf6;
  --architect-soft: #ede9fe;
  --architect-bg: #f5f3ff;
  --dev: #10b981;
  --dev-soft: #d1fae5;
  --dev-bg: #ecfdf5;
  --ops: #f97316;
  --ops-soft: #ffedd5;
  --ops-bg: #fff7ed;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

/* =============== Landing =============== */
.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 20px 60px;
}
.landing-header {
  text-align: center;
  margin-bottom: 48px;
  max-width: 680px;
}
.landing-header h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.landing-header p {
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}
.landing-header .tag {
  display: inline-block;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef2ff;
  color: #4f46e5;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  width: 100%;
  max-width: 960px;
}

.role-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 180px;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  box-shadow: var(--shadow-sm);
}
.role-card:hover {
  transform: translateY(-2px);
  border-color: var(--role-color);
  box-shadow: var(--shadow-lg);
}
.role-card .role-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--role-bg);
  color: var(--role-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.role-card h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}
.role-card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.55;
}
.role-card .enter {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--role-color);
  font-size: 13px;
  font-weight: 500;
}
.role-card[data-role="pm"] { --role-color: var(--pm); --role-bg: var(--pm-bg); }
.role-card[data-role="architect"] { --role-color: var(--architect); --role-bg: var(--architect-bg); }
.role-card[data-role="dev"] { --role-color: var(--dev); --role-bg: var(--dev-bg); }
.role-card[data-role="ops"] { --role-color: var(--ops); --role-bg: var(--ops-bg); }

.landing-footer {
  margin-top: 48px;
  color: var(--text-muted);
  font-size: 13px;
}

/* =============== Editor =============== */
.editor-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.editor-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.editor-header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-soft);
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background 0.15s ease;
}
.back-link:hover { background: #f3f4f6; color: var(--text); }

.header-add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--me, #6366f1);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.32);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  flex: 0 0 auto;
}
.header-add-btn .header-add-ic {
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  transform: translateY(-1px);
}
.header-add-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.42);
}
.header-add-btn:active {
  transform: scale(0.96);
}

.doc-title {
  flex: 1;
  min-width: 180px;
  border: none;
  outline: none;
  background: transparent;
  font-family: inherit;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  padding: 6px 8px;
  border-radius: 6px;
}
.doc-title:hover, .doc-title:focus { background: #f3f4f6; }

.connection {
  font-size: 12px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.connection .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #d1d5db;
}
.connection.online .dot { background: #10b981; }
.connection.offline .dot { background: #ef4444; }

/* --- Avatars --- */
.avatars {
  display: flex;
  gap: 10px;
  align-items: center;
}
.avatar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.2s ease;
}
.avatar[data-online="false"] {
  opacity: 0.4;
}
.avatar-circle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--avatar-color);
  box-shadow: 0 0 0 0 transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.avatar[data-role="pm"]        { --avatar-color: var(--pm);        --avatar-ring: var(--pm-soft); }
.avatar[data-role="architect"] { --avatar-color: var(--architect); --avatar-ring: var(--architect-soft); }
.avatar[data-role="dev"]       { --avatar-color: var(--dev);       --avatar-ring: var(--dev-soft); }
.avatar[data-role="ops"]       { --avatar-color: var(--ops);       --avatar-ring: var(--ops-soft); }

.avatar[data-typing="true"] .avatar-circle {
  transform: scale(1.12);
  box-shadow: 0 0 0 4px var(--avatar-ring), 0 4px 10px rgba(15, 23, 42, 0.12);
  animation: pulse 1.1s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--avatar-ring), 0 4px 10px rgba(15, 23, 42, 0.12); }
  50%      { box-shadow: 0 0 0 7px var(--avatar-ring), 0 4px 12px rgba(15, 23, 42, 0.15); }
}

.avatar[data-self="true"] .avatar-circle::after {
  content: "我";
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  color: var(--avatar-color);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--avatar-color);
}

.avatar-name {
  display: none; /* 桌面端默认隐藏名字，保持头部整洁；可按需打开 */
}

.avatar-typing-badge {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--avatar-color);
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 20;
}
.avatar-typing-badge::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  margin-left: -4px;
  border: 4px solid transparent;
  border-bottom-color: var(--avatar-color);
}
.avatar[data-typing="true"] .avatar-typing-badge {
  opacity: 1;
  transform: translate(-50%, 0);
}
/* 自己的头像不显示气泡（自己知道自己在编辑） */
.avatar[data-self="true"] .avatar-typing-badge {
  display: none;
}

/* --- Editor main --- */
.editor-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 120px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 12px;
}
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--legend-bg);
  color: var(--legend-color);
  border: 1px solid var(--legend-border);
  font-weight: 500;
}
.legend-item[data-role="pm"]        { --legend-color: var(--pm);        --legend-bg: var(--pm-bg);        --legend-border: var(--pm-soft); }
.legend-item[data-role="architect"] { --legend-color: var(--architect); --legend-bg: var(--architect-bg); --legend-border: var(--architect-soft); }
.legend-item[data-role="dev"]       { --legend-color: var(--dev);       --legend-bg: var(--dev-bg);       --legend-border: var(--dev-soft); }
.legend-item[data-role="ops"]       { --legend-color: var(--ops);       --legend-bg: var(--ops-bg);       --legend-border: var(--ops-soft); }

/* =============== Blocks =============== */
.blocks-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.block-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  overflow: hidden;
}
.block-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--block-color, var(--border));
}
.block-card:focus-within {
  box-shadow: 0 0 0 3px var(--block-soft, #e5e7eb), var(--shadow-md);
  border-color: var(--block-color, var(--border));
}

.block-card[data-author="pm"]        { --block-color: var(--pm);        --block-soft: var(--pm-soft);        --block-bg: var(--pm-bg); }
.block-card[data-author="architect"] { --block-color: var(--architect); --block-soft: var(--architect-soft); --block-bg: var(--architect-bg); }
.block-card[data-author="dev"]       { --block-color: var(--dev);       --block-soft: var(--dev-soft);       --block-bg: var(--dev-bg); }
.block-card[data-author="ops"]       { --block-color: var(--ops);       --block-soft: var(--ops-soft);       --block-bg: var(--ops-bg); }

.block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  background: var(--block-bg, #f9fafb);
  border-bottom: 1px solid var(--border);
}

.block-author {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
  min-width: 0;
}
.block-avatars {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}
.block-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  flex: 0 0 auto;
  background: #9ca3af;
  box-shadow: 0 0 0 2px var(--block-bg, #fff);
  transition: transform 0.15s ease;
}
.block-avatars .block-avatar + .block-avatar {
  margin-left: -8px;
}
.block-avatars .block-avatar:hover {
  transform: translateY(-1px);
  z-index: 2;
}
.block-avatar[data-role="pm"]        { background: var(--pm); }
.block-avatar[data-role="architect"] { background: var(--architect); }
.block-avatar[data-role="dev"]       { background: var(--dev); }
.block-avatar[data-role="ops"]       { background: var(--ops); }

.block-author-name {
  font-weight: 600;
  color: var(--block-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}

.block-collab-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  font-weight: 600;
  color: var(--me, #6366f1);
  background: var(--me-bg, #eef2ff);
  padding: 2px 7px;
  border-radius: 999px;
  white-space: nowrap;
}
.block-time {
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.block-editing-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 6px;
  font-size: 11px;
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  animation: pulse-soft 1.2s ease-in-out infinite;
}
.block-editing-tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #10b981;
}
.block-editing-tag[data-role="pm"]        { color: var(--pm); border-color: var(--pm-soft); }
.block-editing-tag[data-role="pm"] .dot   { background: var(--pm); }
.block-editing-tag[data-role="architect"] { color: var(--architect); border-color: var(--architect-soft); }
.block-editing-tag[data-role="architect"] .dot { background: var(--architect); }
.block-editing-tag[data-role="dev"]       { color: var(--dev); border-color: var(--dev-soft); }
.block-editing-tag[data-role="dev"] .dot  { background: var(--dev); }
.block-editing-tag[data-role="ops"]       { color: var(--ops); border-color: var(--ops-soft); }
.block-editing-tag[data-role="ops"] .dot  { background: var(--ops); }
@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.6; }
}

.block-header-actions {
  display: flex;
  gap: 2px;
  align-items: center;
  flex: 0 0 auto;
}
.block-action {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border-radius: 6px;
  transition: all 0.12s ease;
  font-size: 16px;
  line-height: 1;
}
.block-action:hover {
  background: #fff;
  color: var(--text);
  box-shadow: var(--shadow-sm);
}
.block-action.block-delete:hover { color: #dc2626; }
.block-action.block-add-above:hover,
.block-action.block-add-below:hover { color: var(--me, #6366f1); }
.block-action.drag-handle { cursor: grab; }
.block-action.drag-handle:active { cursor: grabbing; }
.block-action.drag-handle svg { fill: currentColor; }

.block-editor-wrap {
  position: relative;
}
.block-editor {
  padding: 14px 18px 18px;
}

/* Per-block remote cursor overlay */
.cursor-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}
.remote-cursor {
  position: absolute;
  width: 2px;
  background: var(--cursor-color);
  box-shadow: 0 0 0 0.5px rgba(255, 255, 255, 0.6);
  transition: left 0.08s ease-out, top 0.08s ease-out, height 0.08s ease-out;
  will-change: left, top;
}
.remote-cursor::before {
  content: "";
  position: absolute;
  top: 0;
  left: -2px;
  right: -2px;
  height: 4px;
  background: var(--cursor-color);
  border-radius: 2px;
}
.remote-cursor[data-role="pm"]        { --cursor-color: var(--pm); }
.remote-cursor[data-role="architect"] { --cursor-color: var(--architect); }
.remote-cursor[data-role="dev"]       { --cursor-color: var(--dev); }
.remote-cursor[data-role="ops"]       { --cursor-color: var(--ops); }

.remote-cursor-label {
  position: absolute;
  top: -16px;
  left: -2px;
  background: var(--cursor-color);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 2px 6px;
  border-radius: 3px;
  white-space: nowrap;
  line-height: 1.3;
  box-shadow: 0 2px 4px rgba(15, 23, 42, 0.14);
  opacity: 0;
  transition: opacity 0.15s ease;
}
.remote-cursor[data-active="true"] .remote-cursor-label { opacity: 1; }

.remote-selection {
  position: absolute;
  background: var(--cursor-color);
  opacity: 0.2;
  border-radius: 2px;
  pointer-events: none;
}

/* Soft lock：红色边框 + 顶部提示条（不遮挡正文） */
.block-card[data-locked="true"] {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12), var(--shadow-md);
}
.block-card[data-locked="true"] .cursor-layer { opacity: 0.4; }

.block-lock-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  font-size: 12px;
  color: #b91c1c;
  background: #fef2f2;
  border-bottom: 1px solid #fecaca;
  animation: lock-fade 0.15s ease-out;
}
.block-lock-banner .lock-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: #ef4444;
}
.block-lock-banner strong {
  font-weight: 700;
  margin: 0 2px;
}
.block-lock-banner strong[data-role="pm"]        { color: var(--pm); }
.block-lock-banner strong[data-role="architect"] { color: var(--architect); }
.block-lock-banner strong[data-role="dev"]       { color: var(--dev); }
.block-lock-banner strong[data-role="ops"]       { color: var(--ops); }
@keyframes lock-fade {
  from { opacity: 0; transform: translateY(-2px); }
  to   { opacity: 1; transform: translateY(0); }
}
/* 字符级作者颜色（Quill ClassAttributor 'author' -> class 'author-<role>'） */
.block-editor .ql-editor .author-pm        { color: var(--pm); }
.block-editor .ql-editor .author-architect { color: var(--architect); }
.block-editor .ql-editor .author-dev       { color: var(--dev); }
.block-editor .ql-editor .author-ops       { color: var(--ops); }

.block-editor .ql-editor {
  min-height: 60px;
  padding: 0;
  font-size: 15px;
  line-height: 1.75;
  font-family: inherit;
  color: var(--text);
}
.block-editor .ql-editor.ql-blank::before {
  left: 0;
  right: 0;
  color: var(--text-muted);
  font-style: normal;
  font-size: 14px;
}

/* sortable drag states */
.block-card-ghost {
  opacity: 0.4;
  background: var(--block-bg, #eef2ff);
}
.block-card-chosen {
  box-shadow: var(--shadow-lg);
}
.block-card-dragging {
  transform: rotate(1deg);
  opacity: 0.92;
}

/* Add-block button */
.add-block-btn {
  margin-top: 16px;
  width: 100%;
  padding: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1.5px dashed var(--me, #c7d2fe);
  border-radius: 12px;
  color: var(--me, #6366f1);
  font-size: 14px;
  font-weight: 500;
  background: transparent;
  transition: all 0.15s ease;
}
.add-block-btn:hover {
  background: var(--me-bg, #eef2ff);
  border-style: solid;
}
.add-block-btn .add-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--me, #6366f1);
  color: #fff;
  font-size: 16px;
  line-height: 1;
}

.empty-hint {
  text-align: center;
  padding: 42px 20px;
  color: var(--text-muted);
  font-size: 14px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 12px;
}

/* =============== Marks (highlight + note) =============== */
.block-editor .ql-editor .mark-pm        { background: #dbeafe; box-shadow: 0 0 0 1px #bfdbfe; }
.block-editor .ql-editor .mark-architect { background: #ede9fe; box-shadow: 0 0 0 1px #ddd6fe; }
.block-editor .ql-editor .mark-dev       { background: #d1fae5; box-shadow: 0 0 0 1px #a7f3d0; }
.block-editor .ql-editor .mark-ops       { background: #ffedd5; box-shadow: 0 0 0 1px #fed7aa; }
.block-editor .ql-editor [class*="mark-"] {
  padding: 1px 3px;
  border-radius: 3px;
  transition: filter 0.15s ease;
}
.block-editor .ql-editor [data-note] { cursor: help; }
.block-editor .ql-editor [data-note]:hover { filter: brightness(0.96); }

/* --- Docked mark toolbar（常驻在内容上方，sticky 贴在 header 下） --- */
.mark-toolbar-docked {
  position: sticky;
  top: 60px; /* 编辑器 header 高度 */
  z-index: 20;
  display: flex;
  align-items: stretch;
  gap: 0;
  background: #111827;
  color: #fff;
  border-radius: 10px;
  padding: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  margin-bottom: 14px;
  user-select: none;
  transition: opacity 0.15s ease, filter 0.15s ease;
}
.mark-toolbar-docked.is-disabled {
  opacity: 0.6;
  filter: saturate(0.6);
}
.mark-toolbar-hint {
  margin-left: auto;
  padding: 6px 12px;
  font-size: 12px;
  color: #9ca3af;
  align-self: center;
}
.mark-toolbar-docked:not(.is-disabled) .mark-toolbar-hint { display: none; }
@keyframes mt-pop {
  from { transform: translateY(4px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.mark-toolbar-docked .mark-btn,
.mark-toolbar .mark-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #fff;
  background: transparent;
  border: none;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s ease;
  position: relative;
}
.mark-toolbar-docked .mark-btn:hover:not([disabled]),
.mark-toolbar .mark-btn:hover:not([disabled]) {
  background: rgba(255, 255, 255, 0.12);
}
.mark-toolbar-docked .mark-btn[disabled] {
  cursor: not-allowed;
  color: rgba(255, 255, 255, 0.55);
}
.mark-toolbar-docked.is-disabled .mark-author-picker .author-picker-pop {
  display: none !important;
}
.mark-toolbar-docked .mark-ic,
.mark-toolbar .mark-ic {
  display: inline-block;
  width: 14px;
  height: 14px;
  vertical-align: middle;
  flex: 0 0 auto;
}
.mark-toolbar-docked .mark-caret,
.mark-toolbar .mark-caret {
  opacity: 0.7;
  margin-left: -2px;
  flex: 0 0 auto;
}
.mark-toolbar-docked .mark-btn-ghost,
.mark-toolbar .mark-btn-ghost { color: #fca5a5; }
.mark-toolbar-docked .mark-btn-ghost:hover:not([disabled]),
.mark-toolbar .mark-btn-ghost:hover:not([disabled]) { background: rgba(239, 68, 68, 0.22); color: #fff; }
.mark-toolbar-docked .mark-divider,
.mark-toolbar .mark-divider {
  width: 1px;
  background: rgba(255, 255, 255, 0.14);
  margin: 4px 2px;
}

/* author picker：悬停展开色板 */
.mark-author-picker { cursor: pointer; }
.mark-author-picker .author-picker-pop {
  position: absolute;
  top: 100%;                /* 紧贴父元素，不留外部空隙 */
  left: 50%;
  transform: translateX(-50%);
  display: none;
  gap: 6px;
  /* 上方留 10px（视觉空隙 + 内边距），其余 6px；这 10px 仍属于 pop 内部，hover 不断 */
  padding: 10px 6px 6px 6px;
  background: #111827;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
/* 兜底：在 pop 顶部再拉伸一个不可见的 hover 缓冲带，防止父子过渡时丢焦 */
.mark-author-picker .author-picker-pop::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  right: 0;
  height: 10px;
}
.mark-author-picker:hover .author-picker-pop,
.mark-author-picker:focus-within .author-picker-pop {
  display: inline-flex;
}
.author-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.18);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.author-swatch:hover {
  transform: scale(1.12);
  border-color: #fff;
}

/* --- Note popover --- */
.mark-popover {
  position: absolute;
  z-index: 1001;
  width: 320px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14);
  animation: mt-pop 0.12s ease-out;
}
.mark-popover-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
  margin-bottom: 8px;
}
.mark-input {
  width: 100%;
  min-height: 70px;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.55;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  resize: vertical;
  background: #f9fafb;
  color: var(--text);
  transition: border-color 0.12s ease, background 0.12s ease;
  box-sizing: border-box;
}
.mark-input:focus {
  border-color: var(--me, #6366f1);
  background: #fff;
}
.mark-popover-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}
.mark-popover-actions button {
  padding: 6px 14px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.12s ease;
}
.mark-popover-actions .btn-cancel {
  background: #f3f4f6;
  color: var(--text-soft);
}
.mark-popover-actions .btn-cancel:hover {
  background: #e5e7eb;
  color: var(--text);
}
.mark-popover-actions .btn-ok {
  background: var(--me, #6366f1);
  color: #fff;
}
.mark-popover-actions .btn-ok:hover {
  filter: brightness(0.94);
}

/* --- Hover tooltip for data-note --- */
.mark-tooltip {
  position: absolute;
  z-index: 1002;
  max-width: 320px;
  padding: 8px 12px;
  background: #111827;
  color: #fff;
  font-size: 13px;
  line-height: 1.55;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.28);
  pointer-events: none;
  white-space: pre-wrap;
  word-break: break-word;
  animation: mt-pop 0.12s ease-out;
}

/* =============== Todos（待办事项） =============== */
.todos {
  margin-top: 32px;
  padding: 20px 22px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.todos-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.todos-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.todos-title svg { color: var(--text-soft); }
.todos-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
  padding: 3px 9px;
  background: #f3f4f6;
  border-radius: 999px;
}

/* Form */
.todos-form {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.todos-form-roles {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}
.todos-arrow {
  color: var(--text-muted);
  flex: 0 0 auto;
}
.todo-role-select {
  appearance: none;
  -webkit-appearance: none;
  padding: 6px 24px 6px 10px;
  font-size: 13px;
  font-weight: 500;
  background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'><path fill='%239ca3af' d='m2 4 4 4 4-4z'/></svg>") no-repeat right 6px center / 10px 10px;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
.todo-role-select:hover { border-color: #cbd5e1; }
.todo-role-select:focus {
  outline: none;
  border-color: var(--me, #6366f1);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}
.todo-input {
  flex: 1 1 200px;
  min-width: 160px;
  padding: 7px 12px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 7px;
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
.todo-input:focus {
  border-color: var(--me, #6366f1);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}
.todo-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--me, #6366f1);
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: filter 0.12s ease, transform 0.12s ease;
  flex: 0 0 auto;
}
.todo-add-btn:hover { filter: brightness(0.94); }
.todo-add-btn:active { transform: translateY(1px); }

/* List */
.todos-list { display: flex; flex-direction: column; gap: 8px; }
.todos-empty {
  padding: 24px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}
.todo-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.15s ease;
}
.todo-item:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-sm);
}
.todo-item[data-done="true"] {
  background: #f9fafb;
  opacity: 0.75;
}

/* Checkbox 圆形按钮 */
.todo-check {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  background: #fff;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}
.todo-check:hover { border-color: var(--me, #6366f1); }
.todo-item[data-done="true"] .todo-check {
  background: #10b981;
  border-color: #10b981;
}
.todo-item[data-done="true"] .todo-check svg { color: #fff; }

.todo-body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.todo-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 12px;
}
.todo-meta-arrow { color: var(--text-muted); }
.todo-role-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  background: #9ca3af;
  letter-spacing: 0.02em;
}
.todo-role-tag[data-role="pm"]        { background: var(--pm); }
.todo-role-tag[data-role="architect"] { background: var(--architect); }
.todo-role-tag[data-role="dev"]       { background: var(--dev); }
.todo-role-tag[data-role="ops"]       { background: var(--ops); }
.todo-badge {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-soft);
  background: #f1f5f9;
  border: 1px solid var(--border);
}
.todo-done-mark {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  color: #059669;
  background: #d1fae5;
}
.todo-text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  word-break: break-word;
}
.todo-item[data-done="true"] .todo-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.todo-delete {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.12s ease;
}
.todo-item:hover .todo-delete { opacity: 1; }
.todo-delete:hover { color: #dc2626; background: #fee2e2; }

/* =============== Toast =============== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #111827;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 640px) {
  .landing-header h1 { font-size: 28px; }
  .editor-header-inner { padding: 10px 14px; gap: 10px; }
  .doc-title { font-size: 16px; }
  .editor-main { padding: 16px 12px 100px; }
  .block-header { padding: 8px 12px; }
  .block-editor { padding: 12px 14px 14px; }
  .avatars { gap: 6px; }
  .avatar-circle { width: 30px; height: 30px; font-size: 11px; }
}