:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --line: #e4e7ec;
  --line-strong: #d0d5dd;
  --text: #1d2939;
  --text-dim: #667085;
  --brand: #2f5bd7;
  --brand-soft: #eaf0ff;
  --ok: #12a150;
  --ok-soft: #e6f6ed;
  --warn: #e8871e;
  --warn-soft: #fdf1e2;
  --danger: #d92d20;
  --danger-soft: #fdeceb;
  --info: #4a72d4;
  --info-soft: #eaefff;
  --muted: #98a2b3;
  --muted-soft: #f2f4f7;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(16, 24, 40, .08), 0 1px 2px rgba(16, 24, 40, .04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.55 -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- layout */
.app-header {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 40;
}

.app-header .inner {
  max-width: 1680px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  height: 56px;
}

.brand { font-size: 15px; font-weight: 600; white-space: nowrap; }
.brand small { color: var(--text-dim); font-weight: 400; margin-left: 6px; }

nav.tabs { display: flex; gap: 4px; flex: 1; }
nav.tabs a {
  padding: 6px 14px;
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 14px;
}
nav.tabs a:hover { background: var(--muted-soft); text-decoration: none; }
nav.tabs a.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.app-header .logout {
  font-size: 13px; color: var(--text-dim); cursor: pointer;
  padding: 6px 12px; border-radius: 6px; white-space: nowrap;
}
.app-header .logout:hover { background: var(--danger-soft); color: var(--danger); text-decoration: none; }

main.page {
  max-width: 1680px;
  margin: 0 auto;
  padding: 18px 20px 60px;
}

/* ---------------------------------------------------------------- cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.card .label { color: var(--text-dim); font-size: 12px; }
.card .value { font-size: 22px; font-weight: 600; margin-top: 2px; }
.card .value.ok { color: var(--ok); }
.card .value.warn { color: var(--warn); }
.card .value.danger { color: var(--danger); }
.card.clickable { cursor: pointer; transition: border-color .12s, box-shadow .12s, background .12s; }
.card.clickable:hover { border-color: var(--brand); background: #fbfcff; }
.card.clickable.active { border-color: var(--brand); background: var(--brand-soft); box-shadow: inset 0 0 0 1px var(--brand); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.panel > header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.panel > header h2 { margin: 0; font-size: 15px; font-weight: 600; }
.panel > header .spacer { flex: 1; }
.panel .body { padding: 14px 16px; }

/* ---------------------------------------------------------------- controls */
button, .btn {
  font: inherit;
  padding: 6px 13px;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--text);
  cursor: pointer;
}
button:hover, .btn:hover { background: var(--muted-soft); }
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
button.primary:hover { filter: brightness(1.06); }
button.danger { color: var(--danger); border-color: #f0b4ae; }
button.danger:hover { background: var(--danger-soft); }
button:disabled { opacity: .55; cursor: not-allowed; }

input, select, textarea {
  font: inherit;
  padding: 6px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  max-width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
label.field { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-dim); }
label.field input, label.field select, label.field textarea { color: var(--text); }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grid-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }

/* ---------------------------------------------------------------- chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 18px;
  background: var(--muted-soft);
  color: var(--text-dim);
  white-space: nowrap;
}
.chip.ok { background: var(--ok-soft); color: var(--ok); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.danger { background: var(--danger-soft); color: var(--danger); }
.chip.info { background: var(--info-soft); color: var(--info); }

/* ---------------------------------------------------------------- table */
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th, table.data td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data th { color: var(--text-dim); font-weight: 500; background: #fafbfc; position: sticky; top: 0; }
table.data tr:hover td { background: #fafbfc; }

.scroll-x { overflow-x: auto; }

/* ---------------------------------------------------------------- settings */
.settings-layout { display: flex; gap: 18px; align-items: flex-start; }
.side-nav {
  width: 168px; min-width: 168px; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 6px; position: sticky; top: 74px;
}
.side-nav a {
  display: block; padding: 8px 12px; border-radius: 6px;
  color: var(--text-dim); font-size: 13px; cursor: pointer;
}
.side-nav a:hover { background: var(--muted-soft); text-decoration: none; }
.side-nav a.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.settings-body { flex: 1; min-width: 0; }
.settings-body .panel:last-child { margin-bottom: 0; }
.save-bar {
  position: sticky; bottom: 0; margin-top: 18px; padding: 12px 16px;
  background: rgba(255,255,255,.94); backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 -2px 12px rgba(16,24,40,.06);
  display: flex; align-items: center; gap: 12px;
}
.hint { margin: 0 0 12px; color: var(--text-dim); font-size: 12.5px; line-height: 1.7; }
.hint-list { margin: 0; padding-left: 18px; color: var(--text-dim); font-size: 12.5px; line-height: 1.9; }
.field .muted { font-weight: 400; }
.switch { display: flex; align-items: center; gap: 8px; margin-top: 12px; font-size: 13px; }
.hidden { display: none; }

.checklist { display: grid; gap: 8px; }
.check-item {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px;
}
.check-item.todo { border-color: #f0c48a; background: #fffaf2; }
.check-item .mark {
  width: 22px; height: 22px; border-radius: 50%; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; background: var(--ok-soft); color: var(--ok);
}
.check-item.todo .mark { background: var(--warn-soft); color: var(--warn); }
.check-item .grow { flex: 1; min-width: 0; }
.check-item .name { font-weight: 600; font-size: 13px; }

/* ---------------------------------------------------------------- gantt */
.gantt { position: relative; overflow: hidden; border-top: 1px solid var(--line); }
.gantt-head {
  display: flex;
  position: sticky;
  top: 56px;
  z-index: 20;
  background: #fafbfc;
  border-bottom: 1px solid var(--line);
}
.gantt-col-left {
  width: 300px;
  min-width: 300px;
  border-right: 1px solid var(--line);
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-dim);
}
.gantt-col-right { flex: 1; position: relative; overflow: hidden; }
.gantt-months { display: flex; height: 28px; }
.gantt-month {
  border-left: 1px solid var(--line);
  font-size: 12px;
  color: var(--text-dim);
  padding: 4px 6px;
  white-space: nowrap;
  overflow: hidden;
}
.gantt-days { display: flex; height: 20px; }
.gantt-day { border-left: 1px solid #f0f1f3; font-size: 10px; color: var(--muted); text-align: center; }
.gantt-day.weekend { background: #f7f8fa; }

.gantt-body { position: relative; }
.gantt-row { display: flex; border-bottom: 1px solid var(--line); min-height: 46px; }
.gantt-row:hover .gantt-col-left { background: #fafbfc; }
.gantt-row .gantt-col-left { display: flex; flex-direction: column; justify-content: center; gap: 3px; }
.gantt-name { font-size: 13px; font-weight: 600; color: var(--text); display: flex; align-items: center; gap: 6px; }
.gantt-meta { font-size: 11px; color: var(--text-dim); display: flex; gap: 8px; flex-wrap: wrap; }
.gantt-track { position: relative; flex: 1; }
.gantt-grid { position: absolute; inset: 0; pointer-events: none; }
.gantt-grid .vline { position: absolute; top: 0; bottom: 0; width: 1px; background: #f0f1f3; }
.gantt-grid .vline.month { background: var(--line); }

.gantt-bar {
  position: absolute;
  height: 16px;
  border-radius: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--muted);
  cursor: pointer;
  overflow: hidden;
  font-size: 11px;
  color: #fff;
  display: flex;
  align-items: center;
  padding: 0 6px;
  white-space: nowrap;
}
.gantt-bar.todo { background: #b6bec9; }
.gantt-bar.doing { background: var(--info); }
.gantt-bar.done { background: var(--ok); }
.gantt-bar.overdue { background: var(--danger); }
.gantt-bar.issue { background: var(--warn); }
.gantt-bar.blocked { background: repeating-linear-gradient(45deg, #d9dde3, #d9dde3 4px, #eef0f3 4px, #eef0f3 8px); color: #667085; }
.gantt-bar.na { background: #d9dde3; color: #667085; }

.gantt-milestone {
  position: absolute;
  width: 10px; height: 10px;
  background: #7a5af8;
  transform: translate(-50%, -50%) rotate(45deg);
  top: 50%;
  border-radius: 2px;
  cursor: pointer;
}
.gantt-today {
  position: absolute;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--danger);
  opacity: .55;
  pointer-events: none;
  z-index: 5;
}

.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--text-dim); padding: 10px 16px; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 5px; vertical-align: -2px; }

/* ---------------------------------------------------------------- misc */
.empty { padding: 40px 20px; text-align: center; color: var(--text-dim); }
.toast {
  position: fixed;
  right: 20px; bottom: 20px;
  background: #1d2939; color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 100;
  max-width: 460px;
  white-space: pre-wrap;
}
.toast.err { background: var(--danger); }
.muted { color: var(--text-dim); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.row-actions { display: flex; gap: 6px; }
details.rule-node { border: 1px solid var(--line); border-radius: 6px; padding: 8px 12px; margin-bottom: 8px; }
details.rule-node summary { cursor: pointer; font-weight: 600; font-size: 13px; }
details.rule-node .kv { font-size: 12px; color: var(--text-dim); margin-top: 6px; display: grid; grid-template-columns: 90px 1fr; gap: 2px 10px; }

/* ---------------------------------------------------------------- gt (gantt) */
.gt-wrap { display: flex; border-top: 1px solid var(--line); }
.gt-left { width: 330px; min-width: 330px; border-right: 1px solid var(--line); background: #fafbfc; }
.gt-left-head {
  height: 48px; display: flex; align-items: center; padding: 0 12px;
  font-size: 12px; color: var(--text-dim); border-bottom: 1px solid var(--line);
}
.gt-left-row {
  display: flex; flex-direction: column; justify-content: center; gap: 3px;
  padding: 0 12px; border-bottom: 1px solid var(--line); background: #fff;
  /* 固定行高 + 裁掉溢出：左栏一旦换行就会撑破行高，和右侧轨道错行 */
  height: 48px; overflow: hidden; box-sizing: border-box;
}
.gt-name {
  font-size: 13px; font-weight: 600; color: var(--text);
  display: flex; align-items: center; gap: 6px; min-width: 0;
}
.gt-name > a, .gt-name > span:not(.chip) {
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.gt-name .chip { flex: 0 0 auto; }
.gt-meta {
  font-size: 11px; color: var(--text-dim); display: flex; gap: 8px;
  min-width: 0; overflow: hidden; white-space: nowrap;
}
.gt-meta > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gt-right { flex: 1; overflow-x: auto; overflow-y: hidden; }
.gt-canvas { position: relative; }
.gt-months { display: flex; height: 28px; border-bottom: 1px solid var(--line); background: #fafbfc; }
.gt-month {
  border-left: 1px solid var(--line); font-size: 12px; color: var(--text-dim);
  padding: 5px 6px; white-space: nowrap; overflow: hidden;
}
.gt-days { display: flex; height: 20px; background: #fafbfc; border-bottom: 1px solid var(--line); }
.gt-day {
  border-left: 1px solid #f4f5f7; font-size: 10px; color: var(--muted);
  text-align: center; line-height: 20px; flex: none;
}
.gt-day.weekend { background: #f2f4f7; }
.gt-rows { position: relative; }
.gt-row { position: relative; border-bottom: 1px solid var(--line); background: #fff; }
.gt-row.has-issue { background: #fffdfa; }
.gt-grid { position: absolute; inset: 0; pointer-events: none; }
.gt-bar {
  position: absolute; height: 14px; border-radius: 4px; cursor: pointer;
  color: #fff; font-size: 10px; line-height: 14px; padding: 0 5px;
  white-space: nowrap; overflow: hidden; opacity: .95;
}
.gt-bar:hover { opacity: 1; box-shadow: 0 0 0 2px rgba(47, 91, 215, .25); }
.gt-bar.todo { background: #b6bec9; }
.gt-bar.doing { background: #4a72d4; }
.gt-bar.done { background: #12a150; }
.gt-bar.overdue { background: #d92d20; }
.gt-bar.issue { background: #e8871e; }
.gt-bar.blocked { background: repeating-linear-gradient(45deg, #d9dde3, #d9dde3 3px, #eef0f3 3px, #eef0f3 6px); color: #667085; }
.gt-bar.na { background: #d9dde3; color: #667085; }
.gt-bar.manual { background: #a78bfa; }
.gt-bar.blocked { background: repeating-linear-gradient(45deg, #d9dde3, #d9dde3 3px, #eef0f3 3px, #eef0f3 6px); color: #667085; }
.gt-milestone {
  position: absolute; width: 9px; height: 9px; top: 50%;
  transform: translate(-50%, -50%) rotate(45deg); border-radius: 2px; cursor: default;
}
.gt-today { position: absolute; top: 0; bottom: 0; width: 2px; background: #d92d20; opacity: .5; z-index: 4; pointer-events: none; }

/* ---------------------------------------------------------------- node list */
.node-item {
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 8px; background: #fff;
}
.node-item.head-issue { border-color: #f0b4ae; background: #fffafa; }
.node-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.node-title { font-weight: 600; font-size: 13px; }
.node-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 6px 14px; font-size: 12px; color: var(--text-dim); margin-top: 6px; }
.node-problems { margin: 8px 0 0; padding-left: 18px; font-size: 12px; color: var(--danger); }
.node-problems li { margin-bottom: 2px; }
.node-edit { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); }
.attach-list { list-style: none; padding: 0; margin: 6px 0 0; font-size: 12px; }
.attach-list li { padding: 2px 0; color: var(--text-dim); }