/* Jira Gantt — shared styles. Clean, information-dense PM tool aesthetic,
   desktop-first with a usable mobile fallback. */

:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #e2e5eb;
  --color-border-strong: #c9cedb;
  --color-text: #1c2230;
  --color-text-muted: #6b7280;
  --color-text-faint: #9aa1b1;
  --color-primary: #3355ee;
  --color-primary-dark: #2542c4;
  --color-primary-bg: #eef1ff;
  --color-success: #16a34a;
  --color-success-bg: #eafaf0;
  --color-warning: #d97706;
  --color-warning-bg: #fff7e6;
  --color-danger: #dc2626;
  --color-danger-bg: #fdecec;
  --color-removed: #b91c1c;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(20, 24, 40, 0.06);
  --shadow-md: 0 4px 16px rgba(20, 24, 40, 0.10);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

a { color: var(--color-primary); }

h1, h2, h3, h4 { margin: 0; font-weight: 700; }

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 20px;
  position: sticky;
  top: 0;
  z-index: 40;
}
.topbar-inner { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar-brand { font-size: 18px; font-weight: 800; letter-spacing: -0.01em; margin-right: 6px; white-space: nowrap; }
.topbar-brand .accent { color: var(--color-primary); }

.board-picker { display: flex; align-items: center; gap: 8px; flex: 1 1 auto; min-width: 220px; }
.board-picker select { max-width: 260px; }

.field-inline { display: flex; align-items: center; gap: 6px; }
.field-inline label { font-size: 12px; color: var(--color-text-muted); white-space: nowrap; }

select, .input {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  background: var(--color-surface);
  min-width: 0;
}
select:focus, .input:focus { outline: 2px solid var(--color-primary-bg); border-color: var(--color-primary); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.12s, border-color 0.12s;
}
.btn:hover { background: #f0f1f5; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-danger { color: var(--color-danger); border-color: #f3c9c9; background: var(--color-danger-bg); }
.btn-danger:hover { background: #fbdcdc; }
.btn-sm { padding: 4px 9px; font-size: 12.5px; border-radius: 6px; }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: #eef0f4; }
.btn-icon { padding: 6px 8px; line-height: 1; }

.last-sync { font-size: 12.5px; color: var(--color-text-muted); white-space: nowrap; }
.last-sync strong { color: var(--color-text); }

.me-label { font-size: 12px; color: var(--color-text-muted); white-space: nowrap; }
.role-badge {
  font-size: 11.5px; font-weight: 700; border-radius: 999px; padding: 2px 9px;
  background: var(--color-success-bg); color: var(--color-success); white-space: nowrap;
}
.role-badge.viewer { background: #eef0f4; color: var(--color-text-muted); }
.btn.needs-attention { border-color: var(--color-warning); background: var(--color-warning-bg); color: var(--color-warning); }

.alert-banner {
  background: var(--color-warning-bg); border: 1px solid #f1d49a; color: #8a5a05;
  border-radius: var(--radius-md); padding: 10px 14px; font-size: 13px; line-height: 1.6;
}
.alert-banner code { background: rgba(0,0,0,.06); padding: 1px 5px; border-radius: 4px; }

/* ---------- Holiday CSV import ---------- */
.import-box { border: 1px dashed var(--color-border-strong); border-radius: var(--radius-md); padding: 12px; }
.import-preview {
  margin-top: 10px; border: 1px solid var(--color-border); border-radius: var(--radius-md);
  padding: 12px; background: var(--color-surface); font-size: 13px; display: flex;
  flex-direction: column; gap: 8px;
}
.import-stats { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; }
.import-stats strong { font-size: 15px; color: var(--color-primary-dark); }
.import-stats .muted { color: var(--color-text-muted); }
.import-sample { font-size: 11.5px; color: var(--color-text-muted); line-height: 1.6; }

/* ---------- Layout ---------- */
.main {
  flex: 1;
  max-width: 1520px;
  width: 100%;
  margin: 0 auto;
  padding: 18px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.panel-header h2 { font-size: 15.5px; }
.panel-header .count-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px;
  background: var(--color-primary-bg); color: var(--color-primary-dark);
  font-size: 12px; font-weight: 700; margin-left: 8px;
}
.panel-body { padding: 16px 18px; }
.panel-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: 40px 20px;
  font-size: 14px;
}
.empty-state .empty-icon { font-size: 30px; margin-bottom: 8px; }

/* ---------- Sync summary ---------- */
.sync-summary { display: flex; gap: 10px; flex-wrap: wrap; }
.sync-stat {
  flex: 1 1 120px;
  border-radius: var(--radius-md);
  padding: 12px 14px;
  background: #f8f9fb;
  border: 1px solid var(--color-border);
}
.sync-stat .num { font-size: 22px; font-weight: 800; line-height: 1.1; }
.sync-stat .label { font-size: 12.5px; color: var(--color-text-muted); margin-top: 2px; }
.sync-stat.added { background: var(--color-success-bg); }
.sync-stat.added .num { color: var(--color-success); }
.sync-stat.updated { background: var(--color-primary-bg); }
.sync-stat.updated .num { color: var(--color-primary-dark); }
.sync-stat.removed { background: var(--color-danger-bg); }
.sync-stat.removed .num { color: var(--color-danger); }
.sync-stat.unchanged .num { color: var(--color-text-muted); }

/* ---------- Filters ---------- */
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.filter-row .input { min-width: 160px; }
.filter-row select { min-width: 120px; }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
table.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data-table th {
  text-align: left; background: #f7f8fa; color: var(--color-text-muted);
  font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: 0.02em;
  padding: 9px 12px; border-bottom: 1px solid var(--color-border); white-space: nowrap;
}
table.data-table td { padding: 9px 12px; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover td { background: #fafbfd; }

.issue-key-pill {
  display: inline-flex; align-items: center; gap: 4px;
  font-weight: 700; font-size: 12.5px; color: var(--color-primary-dark);
  background: var(--color-primary-bg); border-radius: 6px; padding: 2px 7px;
  text-decoration: none;
}
.issue-key-pill:hover { background: #dfe4ff; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-status { background: #eef0f4; color: #444b5c; }
.badge-type { background: #f1eefc; color: #6b3fd4; }
.badge-removed { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-moved { background: var(--color-warning-bg); color: var(--color-warning); }

/* ---------- Gantt ---------- */
.gantt-wrap { display: flex; border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; max-height: 70vh; }
.gantt-list {
  flex: 0 0 400px;
  max-width: 400px;
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  scrollbar-width: none;
}
.gantt-list::-webkit-scrollbar { display: none; }
.gantt-list-row {
  display: flex; align-items: center; gap: 7px;
  padding: 6px 10px; box-sizing: border-box; border-bottom: 1px solid var(--color-border);
  background: var(--color-surface); overflow: hidden;
}
.gantt-list-row.parent-row { background: #fbfcfe; }
.gantt-list-row.child-row { background: var(--color-surface); padding-left: 8px; }
.gantt-list-row.removed-row { background: #fff8f8; }
.gantt-list-row.drop-target { box-shadow: inset 0 2px 0 var(--color-primary); }
.gantt-list-row .drag-handle { cursor: grab; color: var(--color-text-faint); font-size: 13px; flex: none; }
.gantt-list-row .swatch { width: 11px; height: 11px; border-radius: 3px; flex: none; }
.gantt-list-row .item-main { flex: 1 1 auto; min-width: 0; }
/* Titles and meta wrap instead of being cut off with "…" */
.gantt-list-row .item-title { font-size: 13.5px; font-weight: 600; line-height: 1.45; overflow-wrap: anywhere; }
.gantt-list-row .item-title .issue-key-pill { white-space: nowrap; }
.gantt-list-row .item-meta,
.gantt-list-row .child-line {
  font-size: 11.5px; color: var(--color-text-muted);
  display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center; margin-top: 3px;
}
.gantt-list-row .item-meta > *,
.gantt-list-row .child-line > * { white-space: nowrap; }
.gantt-list-row .row-actions { display: flex; gap: 1px; flex: none; }
.gantt-list-header {
  height: 45px; display: flex; align-items: center; padding: 0 10px;
  border-bottom: 1px solid var(--color-border); background: #f7f8fa;
  font-size: 12px; font-weight: 700; color: var(--color-text-muted); text-transform: uppercase;
  position: sticky; top: 0; z-index: 6;
}
.gantt-list-row .caret {
  border: none; background: transparent; cursor: pointer; flex: none;
  color: var(--color-text-muted); font-size: 12px; width: 16px; padding: 0;
}
.gantt-list-row .caret:hover { color: var(--color-text); }
.gantt-list-row .caret-space { width: 16px; flex: none; }
.child-indent { width: 14px; flex: none; border-left: 2px solid var(--color-border); align-self: stretch; margin: -6px 0; }
.track-chip {
  display: inline-block; flex: none; color: #fff; font-size: 11px; font-weight: 700;
  padding: 2px 8px; border-radius: 999px; max-width: 96px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.owner-name { font-weight: 600; color: var(--color-text); }
.date-range { font-variant-numeric: tabular-nums; }
.note-icon { cursor: help; }
.warn-chip {
  border: 1px solid #f1d49a; background: var(--color-warning-bg); color: #8a5a05;
  border-radius: 999px; padding: 1px 8px; font-size: 11px; font-weight: 600; cursor: pointer;
}
.warn-chip:hover { background: #fdeccb; }

.gantt-timeline { flex: 1 1 auto; overflow: auto; position: relative; }
.gantt-timeline-inner { position: relative; }
.gantt-header-row { display: flex; height: 45px; border-bottom: 1px solid var(--color-border); position: sticky; top: 0; background: var(--color-surface); z-index: 5; }
.gantt-day-col {
  flex: none; width: 32px; border-right: 1px solid #eef0f4;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 10.5px; color: var(--color-text-muted);
}
.gantt-day-col.weekend { background: #fafafc; }
.gantt-day-col.holiday { background: #fff1f1; color: var(--color-danger); }
.gantt-day-col.makeup { background: #f0fbf4; color: var(--color-success); }
.gantt-day-col.today { background: var(--color-primary-bg); }
.gantt-day-col .dow { font-size: 9px; opacity: 0.8; }
.gantt-day-col .month-label { font-size: 9.5px; font-weight: 700; color: var(--color-text); }

.gantt-body-row { display: flex; border-bottom: 1px solid var(--color-border); position: relative; }
.gantt-body-row .gantt-day-col { border-right: 1px solid #f2f3f6; }

/* A bar is a positioned holder spanning start→end; inside it one segment per
   contiguous run of working days, so holidays and weekends show as gaps. */
.gantt-bar {
  position: absolute; top: 50%; transform: translateY(-50%); height: 26px;
  cursor: grab; user-select: none;
}
.gantt-bar .bar-link {
  position: absolute; left: 0; right: 0; top: 50%; transform: translateY(-50%);
  height: 3px; border-radius: 2px; opacity: 0.32;
}
.gantt-bar .bar-seg {
  position: absolute; top: 0; height: 26px; border-radius: 6px;
  display: flex; align-items: center; padding: 0 8px;
  font-size: 11.5px; font-weight: 700; color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  box-shadow: var(--shadow-sm);
}
/* Parent summary bar: derived from its tracks, so it is not draggable. */
.gantt-summary-bar {
  position: absolute; top: 50%; transform: translateY(-50%); height: 10px; border-radius: 3px;
  background: linear-gradient(90deg, #7c869c, #59627a);
  opacity: 0.55; pointer-events: none;
}
.gantt-summary-bar::before,
.gantt-summary-bar::after {
  content: ''; position: absolute; top: 0; width: 3px; height: 16px; background: #59627a; border-radius: 2px;
}
.gantt-summary-bar::before { left: 0; }
.gantt-summary-bar::after { right: 0; }
.gantt-bar.dragging { opacity: 0.85; cursor: grabbing; }
.gantt-bar.dragging .bar-seg { box-shadow: var(--shadow-md); }
.gantt-bar .resize-handle {
  position: absolute; right: -2px; top: 0; bottom: 0; width: 10px; cursor: ew-resize; z-index: 2;
}
.gantt-bar.removed-bar { opacity: 0.55; }
.gantt-bar.removed-bar .bar-seg { outline: 2px dashed var(--color-removed); outline-offset: 1px; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(20, 24, 40, 0.45);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 5vh 16px; z-index: 100; overflow-y: auto;
}
.modal {
  background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  width: 100%; max-width: 480px; padding: 20px;
}
.modal-wide { max-width: 680px; }
.modal h3 { font-size: 16px; margin-bottom: 14px; }
.modal-subtitle { font-size: 13px; color: var(--color-text-muted); margin: -8px 0 14px; line-height: 1.5; }
.readonly-box { background: #f7f8fa; color: var(--color-text-muted); }
.field-hint { font-size: 11.5px; color: var(--color-text-faint); margin-top: 4px; }

/* ---------- Multi-track scheduling table ---------- */
.track-table { border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.track-table-head,
.track-row {
  display: grid;
  grid-template-columns: 30px minmax(96px, 1.1fr) 140px 76px minmax(90px, 1fr);
  gap: 8px; align-items: center; padding: 8px 10px;
}
.track-table-head {
  background: #f7f8fa; font-size: 11.5px; font-weight: 700; color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}
.track-row { border-bottom: 1px solid var(--color-border); }
.track-row:last-child { border-bottom: none; }
.track-row.disabled { opacity: 0.55; background: #fafbfc; }
.track-row .input { width: 100%; padding: 5px 8px; }
.track-row .col-track { display: flex; align-items: center; gap: 5px; min-width: 0; }
.add-custom-track { display: flex; gap: 8px; margin-top: 10px; }
.add-custom-track .input { flex: 1; }

/* ---------- Track settings ---------- */
.track-setting-row {
  display: grid; grid-template-columns: minmax(110px, 1fr) auto auto;
  gap: 10px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--color-border);
}
.track-setting-row:last-child { border-bottom: none; }
.track-setting-row .color-swatches { margin-top: 0; }
.track-setting-row .color-swatch { width: 20px; height: 20px; }
.track-setting-actions { display: flex; gap: 2px; }

/* ---------- Resolve dialog ---------- */
.resolve-options { display: flex; flex-direction: column; gap: 8px; }
.resolve-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px;
  text-align: left; padding: 11px 14px; white-space: normal; height: auto;
}
.resolve-btn strong { font-size: 13.5px; }
.resolve-btn span { font-size: 12px; color: var(--color-text-muted); font-weight: 400; line-height: 1.45; }
.resolve-btn.danger strong { color: var(--color-danger); }
.form-row { margin-bottom: 12px; }
.form-row label { display: block; font-size: 12.5px; font-weight: 700; color: var(--color-text-muted); margin-bottom: 4px; }
.form-row .input, .form-row select, .form-row textarea { width: 100%; }
.form-row textarea { min-height: 70px; resize: vertical; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.color-swatches { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.color-swatch { width: 24px; height: 24px; border-radius: 6px; cursor: pointer; border: 2px solid transparent; }
.color-swatch.selected { border-color: var(--color-text); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.modal-error { color: var(--color-danger); font-size: 13px; margin-top: 8px; }
.checkbox-row { display: flex; align-items: center; gap: 6px; font-size: 13px; }

/* ---------- Toast ---------- */
#toast-root { position: fixed; top: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast {
  background: var(--color-text); color: #fff; padding: 10px 16px; border-radius: var(--radius-sm);
  font-size: 13.5px; box-shadow: var(--shadow-md); max-width: 340px;
}
.toast.error { background: var(--color-danger); }
.toast.success { background: var(--color-success); }

/* ---------- Warning banner ---------- */
.warn-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--color-warning-bg); border: 1px solid #f1d49a; color: #8a5a05;
  border-radius: var(--radius-sm); padding: 8px 12px; font-size: 12.5px; margin-top: 6px;
}
.warn-banner .actions { display: flex; gap: 6px; }

/* ---------- Loading ---------- */
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(0,0,0,0.15); border-top-color: var(--color-primary); border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Share page ---------- */
.share-shell { max-width: 1400px; margin: 0 auto; padding: 20px; }
.share-header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 16px; }
.share-header h1 { font-size: 20px; }
.share-readonly-note { font-size: 12.5px; color: var(--color-text-muted); background: #f0f1f5; padding: 4px 10px; border-radius: 999px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .main { padding: 12px 12px 40px; gap: 12px; }
  .gantt-wrap { flex-direction: column; }
  .gantt-list { flex: none; max-width: none; max-height: 260px; border-right: none; border-bottom: 1px solid var(--color-border); }
  .gantt-timeline { max-height: 360px; }
  .topbar-inner { gap: 8px; }
  .board-picker { flex: 1 1 100%; }
  .form-grid-2 { grid-template-columns: 1fr; }
}

.tag-chip {
  display: inline-flex; align-items: center; gap: 4px; font-size: 11.5px;
  background: #eef0f4; color: var(--color-text-muted); border-radius: 999px; padding: 1px 8px;
}


/* ---------- Top bar: second row, user box ---------- */
.topbar-row2 { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--color-border); }
.user-box { display: flex; align-items: center; gap: 8px; }
.user-avatar {
  width: 26px; height: 26px; border-radius: 50%; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-primary-bg); color: var(--color-primary-dark);
  font-size: 12px; font-weight: 700;
}
.user-avatar:empty { display: none; }
.user-box .me-label { font-size: 13px; color: var(--color-text); font-weight: 600; max-width: 200px; overflow: hidden; text-overflow: ellipsis; }

/* ---------- Sync summary: compact one-line strip ---------- */
.sync-strip { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 10px 16px; }
.sync-strip-title { font-size: 13px; font-weight: 700; color: var(--color-text); white-space: nowrap; }
.sync-strip .sync-summary { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.sync-chip {
  display: inline-flex; align-items: baseline; gap: 5px;
  font-size: 12.5px; color: var(--color-text-muted);
  padding: 3px 10px; border-radius: 999px; background: #f1f3f5;
}
.sync-chip b { font-size: 14px; font-weight: 800; color: var(--color-text); }
.sync-chip.added { background: var(--color-success-bg); }
.sync-chip.added b { color: var(--color-success); }
.sync-chip.updated { background: var(--color-primary-bg); }
.sync-chip.updated b { color: var(--color-primary-dark); }
.sync-chip.removed { background: var(--color-danger-bg); }
.sync-chip.removed b { color: var(--color-danger); }
.sync-meta { font-size: 12.5px; color: var(--color-text-muted); margin-left: 4px; }

/* ---------- Credit (end of page, right-aligned) ---------- */
.site-credit {
  max-width: 1520px; width: 100%; margin: 0 auto; box-sizing: border-box;
  padding: 0 20px 16px; text-align: right;
  font-size: 11.5px; color: var(--color-text-faint);
}
.share-shell .site-credit { padding: 14px 0 0; }
.topbar-row2 select { max-width: 220px; }
.board-picker select { min-width: 160px; }
@media (max-width: 860px) {
  .topbar { position: static; } /* two-row bar would cover half a phone screen if it stayed pinned */
  .board-picker { flex-wrap: wrap; }
  .board-picker select { flex: 1 1 100%; max-width: none; }
  .topbar-row2 select { max-width: none; }
  .site-credit { padding: 0 12px 14px; }
}

.app-shell > .main { padding-bottom: 24px; }

/* ---------- Help dialog ---------- */
.help-btn { color: var(--color-text-muted); }
.help-modal { max-width: 720px; padding: 0; overflow: hidden; }
.help-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px 0; }
.help-head h3 { margin: 0; }
.help-tabs { display: flex; gap: 4px; padding: 10px 20px 0; border-bottom: 1px solid var(--color-border); }
.help-tab {
  border: none; background: none; cursor: pointer; font: inherit; font-size: 13.5px;
  padding: 8px 12px; color: var(--color-text-muted); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.help-tab.active { color: var(--color-primary-dark); border-bottom-color: var(--color-primary); font-weight: 700; }
.help-body { padding: 14px 20px 20px; max-height: 68vh; overflow-y: auto; font-size: 13.5px; line-height: 1.75; color: var(--color-text); }
.help-body section + section { margin-top: 14px; }
.help-body h4 { font-size: 14px; margin: 0 0 4px; }
.help-body ol, .help-body ul { margin: 0; padding-left: 20px; }
.help-body a { color: var(--color-primary); }
.help-note { margin-top: 12px; font-size: 12.5px; color: var(--color-text-muted); background: #f7f8fa; border-radius: var(--radius-sm); padding: 8px 10px; }
.help-table { border-collapse: collapse; font-size: 12.5px; margin-top: 4px; }
.help-table th, .help-table td { border: 1px solid var(--color-border); padding: 4px 10px; text-align: center; }
.help-table td:first-child { text-align: left; }
.help-table th { background: #f7f8fa; font-weight: 600; }