/* Chỉ những lớp riêng của tab Preflight. Mọi thứ khác (block, field, dropzone,
   case-card, badge, summary…) đã có sẵn trong style.css của engine.

   Quy ước màu của cả tab — dùng đúng ba màu này, không thêm:
     đỏ   = lỗi, phải sửa trước khi in
     vàng = cảnh báo, in được nhưng nên xem
     xanh = đạt
     xám  = không kết luận được (không kiểm được / chưa hỗ trợ / đã tắt) */

:root {
  --pf-err:        #c0261e;
  --pf-err-ink:    #8f1d17;
  --pf-err-line:   #efb0aa;
  --pf-err-bg:     #fdf4f3;
  --pf-warn:       #9a6700;
  --pf-warn-ink:   #7a5200;
  --pf-warn-line:  #ecc978;
  --pf-warn-bg:    #fffaef;
  --pf-ok:         #0a7d3c;
  --pf-ok-ink:     #0a5b2c;
  --pf-ok-line:    #8ed3ab;
  --pf-ok-bg:      #f4faf6;
  --pf-nil:        #6b7280;
  --pf-nil-ink:    #4b5563;
  --pf-nil-line:   #d3d7dd;
  --pf-nil-bg:     #f7f8f9;
}

/* ── thanh lọc ────────────────────────────────────────────────────────────── */
.diag-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 12px; padding: 10px; border: 1px solid var(--line);
  border-radius: var(--r); background: var(--paper);
}
.diag-filters { display: flex; flex-wrap: wrap; gap: 6px; }
.diag-filter {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1.5px solid var(--line); border-radius: 999px; padding: 6px 12px;
  background: var(--card); color: var(--ink-soft); font: 12px var(--mono);
  cursor: pointer; transition: background .12s, border-color .12s, color .12s;
}
.diag-filter::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: currentColor; flex: 0 0 8px;
}
.diag-filter strong { color: inherit; font-weight: 700; }
.diag-filter.f-error   { color: var(--pf-err); }
.diag-filter.f-warning { color: var(--pf-warn); }
.diag-filter.f-pass    { color: var(--pf-ok); }
.diag-filter.f-other   { color: var(--pf-nil); }
.diag-filter.f-all     { color: var(--ink-soft); }
.diag-filter.f-all::before { display: none; }
.diag-filter:hover { border-color: currentColor; }
.diag-filter.active { border-color: currentColor; }
.diag-filter.f-error.active   { background: var(--pf-err-bg); }
.diag-filter.f-warning.active { background: var(--pf-warn-bg); }
.diag-filter.f-pass.active    { background: var(--pf-ok-bg); }
.diag-filter.f-other.active,
.diag-filter.f-all.active     { background: var(--pf-nil-bg); border-color: var(--ink); color: var(--ink); }
.diag-search { flex: 0 1 280px; }
.diag-search input { width: 100%; min-width: 180px; }

/* ── nhóm lỗi ─────────────────────────────────────────────────────────────── */
.diag-groups { display: flex; flex-direction: column; gap: 20px; margin-top: 16px; }
.diag-group[hidden] { display: none; }
.dg-head {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 12px;
  padding-bottom: 7px; border-bottom: 2px solid var(--line);
}
.dg-name { margin: 0; font-size: 14px; letter-spacing: .02em; color: var(--ink); }
.dg-counts { display: flex; flex-wrap: wrap; gap: 6px; }
.dg-chip {
  display: inline-flex; align-items: center; gap: 5px;
  font: 700 11px var(--mono); padding: 2px 9px; border-radius: 999px;
  border: 1px solid currentColor;
}
.dg-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.dg-chip.error   { color: var(--pf-err);  background: var(--pf-err-bg); }
.dg-chip.warning { color: var(--pf-warn); background: var(--pf-warn-bg); }
.dg-chip.pass    { color: var(--pf-ok);   background: var(--pf-ok-bg); }
.dg-chip.other   { color: var(--pf-nil);  background: var(--pf-nil-bg); }

/* ── thẻ từng phép kiểm ───────────────────────────────────────────────────── */
.diag-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.diag-card {
  border: 1px solid var(--line);
  border-left: 4px solid var(--pf-nil);
  border-radius: var(--r);
  background: var(--card);
  overflow: hidden;
}
.diag-card[hidden] { display: none; }
.diag-card .diag-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 11px 14px; cursor: pointer; list-style: none;
}
.diag-card .diag-top::-webkit-details-marker { display: none; }
.diag-card .diag-top::after {
  content: "＋"; color: var(--ink-soft); font: 15px var(--mono); margin-left: 2px;
}
.diag-card[open] .diag-top::after { content: "−"; }
.diag-heading { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1; }
.diag-dot {
  flex: 0 0 10px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--pf-nil);
}
.diag-text { min-width: 0; }
.diag-title { display: block; font-size: 14px; font-weight: 700; color: var(--ink); }
.diag-category { display: block; margin-top: 2px; font: 11px var(--mono); color: var(--ink-soft); }
.diag-body { border-top: 1px solid rgba(0,0,0,.08); padding: 13px 15px 15px; }
.diag-msg {
  font-size: 13.5px; line-height: 1.55; margin: 0 0 12px;
  white-space: pre-wrap; color: var(--ink);
}
.diag-explain { display: grid; grid-template-columns: 120px 1fr; gap: 10px; margin-top: 8px; }
.diag-explain strong { font-size: 12px; color: var(--ink-soft); }
.diag-explain p { margin: 0; font-size: 13px; line-height: 1.5; }
.occurrence-tree { display: grid; gap: 8px; margin-top: 13px; }
.occurrence-page-group {
  border: 1px solid rgba(0,0,0,.11); border-radius: 8px; overflow: hidden;
  background: rgba(255,255,255,.28);
}
.occurrence-page-summary,
.occurrence-group-summary {
  display: grid; align-items: center; gap: 10px; cursor: pointer; list-style: none;
  transition: background .12s, box-shadow .12s;
}
.occurrence-page-summary::-webkit-details-marker,
.occurrence-group-summary::-webkit-details-marker { display: none; }
.occurrence-page-summary {
  grid-template-columns: minmax(90px, auto) 1fr auto auto;
  padding: 9px 11px; background: rgba(0,0,0,.045);
}
.occurrence-page-title { font: 800 12px var(--mono); color: var(--ink); }
.occurrence-count { font: 700 10px var(--mono); color: var(--ink-soft); white-space: nowrap; }
/* Giờ là <button> thật nằm trong <summary>, nên phải reset style mặc định của
   trình duyệt và cho nó dáng bấm được — nó là công tắc tô/bỏ tô, tách khỏi việc
   đóng/mở nhóm của summary. */
.occurrence-group-action {
  font: 700 10px var(--mono); color: currentColor; white-space: nowrap; opacity: .78;
  padding: 3px 8px; border: 1px solid currentColor; border-radius: 999px;
  background: transparent; cursor: pointer; transition: opacity .12s, background .12s;
}
.occurrence-group-action:hover { opacity: 1; background: rgba(255,255,255,.75); }
.occurrence-page-summary.selected > .occurrence-group-action,
.occurrence-group-summary.selected > .occurrence-group-action {
  opacity: 1; background: #fff;
}
.occurrence-button.selected .occurrence-action { opacity: 1; }
.occurrence-page-summary::after,
.occurrence-group-summary::after {
  content: "＋"; color: var(--ink-soft); font: 13px var(--mono);
}
.occurrence-page-group[open] > .occurrence-page-summary::after,
.occurrence-message-group[open] > .occurrence-group-summary::after { content: "−"; }
.occurrence-page-summary:hover,
.occurrence-group-summary:hover,
.occurrence-page-summary.selected,
.occurrence-group-summary.selected { background: rgba(255,255,255,.78); box-shadow: inset 3px 0 currentColor; }
.state-error .occurrence-page-summary,
.state-error .occurrence-group-summary { color: var(--pf-err-ink); }
.state-warning .occurrence-page-summary,
.state-warning .occurrence-group-summary { color: var(--pf-warn-ink); }
.occurrence-message-groups { display: grid; gap: 7px; padding: 8px; }
.occurrence-message-group {
  border: 1px solid rgba(0,0,0,.08); border-radius: 7px; overflow: hidden;
  background: rgba(0,0,0,.025);
}
.occurrence-group-summary {
  grid-template-columns: minmax(0, 1fr) auto auto auto; padding: 8px 10px;
}
.occurrence-group-message { min-width: 0; color: var(--ink); font-size: 12.5px; line-height: 1.45; }
.occurrence-list { margin: 0; padding: 7px; list-style: none; display: grid; gap: 7px; border-top: 1px solid rgba(0,0,0,.07); }
.occurrence-list li { border-radius: 6px; background: rgba(0,0,0,.045); overflow: hidden; }
.occurrence-button, .occurrence-static {
  width: 100%; display: grid; grid-template-columns: minmax(110px, 180px) 1fr auto;
  align-items: center; gap: 10px; padding: 8px 10px; border: 0;
  background: transparent; color: inherit; text-align: left;
  font: 12.5px/1.45 inherit;
}
.occurrence-button { cursor: pointer; transition: background .12s, box-shadow .12s; }
.occurrence-button:hover { background: rgba(255,255,255,.65); box-shadow: inset 3px 0 currentColor; }
.occurrence-button.selected { background: #fff; box-shadow: inset 3px 0 currentColor; }
.state-error .occurrence-button { color: var(--pf-err-ink); }
.state-warning .occurrence-button { color: var(--pf-warn-ink); }
.occurrence-button > span:nth-child(2), .occurrence-static > span:nth-child(2) { color: var(--ink); }
.occurrence-action { font: 700 10px var(--mono); white-space: nowrap; opacity: .72; }
.occurrence-unavailable { font: 10px var(--mono); color: var(--pf-nil); white-space: nowrap; }
.occurrence-truncated { margin: 8px 0 0; font: 11px var(--mono); color: var(--ink-soft); }
.occurrence-place { font: 700 11px var(--mono); color: var(--ink-soft); }
.diag-pill {
  display: inline-flex; align-items: center;
  font-family: var(--mono); font-size: 11px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
  border: 1.5px solid currentColor; white-space: nowrap;
  color: var(--pf-nil);
}

/* trạng thái → màu. Một khai báo cho cả thẻ, chấm và nhãn.

   Ba nhóm, không phải tám: ĐỎ = có lỗi, VÀNG = chưa kết luận được mà đáng lo
   (check-error, blocked), XANH = đạt, XÁM = vô hại (planned, not-applicable,
   disabled). `blocked` cố ý ăn màu vàng chứ không xám: nó nghĩa là một phép
   kiểm đang bật đã không kết luận được về chính tệp này, tức là còn việc phải
   làm — để nó xám thì người xem đọc thành "đã tắt, kệ". */
.diag-card.state-error   { border-color: var(--pf-err-line);  border-left-color: var(--pf-err);  background: var(--pf-err-bg); }
.diag-card.state-error   .diag-title { color: var(--pf-err-ink); }
.diag-card.state-error   .diag-dot   { background: var(--pf-err); }
.diag-pill.state-error   { color: var(--pf-err); }

.diag-card.state-warning { border-color: var(--pf-warn-line); border-left-color: var(--pf-warn); background: var(--pf-warn-bg); }
.diag-card.state-warning .diag-title { color: var(--pf-warn-ink); }
.diag-card.state-warning .diag-dot   { background: var(--pf-warn); }
.diag-pill.state-warning { color: var(--pf-warn); }

.diag-card.state-pass    { border-color: var(--pf-ok-line);   border-left-color: var(--pf-ok);   background: var(--pf-ok-bg); }
.diag-card.state-pass    .diag-title { color: var(--pf-ok-ink); }
.diag-card.state-pass    .diag-dot   { background: var(--pf-ok); }
.diag-pill.state-pass    { color: var(--pf-ok); }

.diag-card.state-check-error { border-color: var(--pf-warn-line); border-left-color: var(--pf-warn); background: var(--pf-warn-bg); }
.diag-card.state-check-error .diag-dot { background: var(--pf-warn); }
.diag-pill.state-check-error { color: var(--pf-warn); }

.diag-card.state-planned,
.diag-card.state-disabled {
  border-color: var(--pf-nil-line); border-left-color: var(--pf-nil);
  background: var(--pf-nil-bg);
}
.diag-card.state-planned .diag-title,
.diag-card.state-disabled .diag-title { color: var(--pf-nil-ink); }
.diag-card.state-disabled { opacity: .85; }

.diag-empty { margin: 18px 0; color: var(--ink-soft); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.diag-card.state-blocked { border-color: var(--pf-warn-line); border-left-color: var(--pf-warn); background: var(--pf-warn-bg); }
.diag-card.state-blocked .diag-title { color: var(--pf-warn-ink); }
.diag-card.state-blocked .diag-dot { background: var(--pf-warn); }
.diag-pill.state-blocked { color: var(--pf-warn); }

.diag-card.state-not-applicable {
  border-color: var(--pf-nil-line); border-left-color: var(--pf-nil);
  background: var(--pf-nil-bg);
}
.diag-card.state-not-applicable .diag-title { color: var(--pf-nil-ink); }
.diag-pill.state-not-applicable { color: var(--pf-nil); }

/* Ngưỡng theo từng lượt: gấp lại mặc định vì phần lớn lần gửi không đụng tới. */
.pf-thresholds { border: 1px solid var(--line); border-radius: var(--r); padding: 12px 14px; margin: 16px 0; }
.pf-thresholds > summary { cursor: pointer; font-weight: 600; }
.pf-thresholds .grid-2 { margin-top: 12px; }
.pf-thresholds input[type="number"] { width: 100%; }

/* Đã chọn tệp: viền đậm lên để trạng thái nhìn thấy được từ xa, không phải đọc. */
#upload-form.has-file .dropzone { border-style: solid; border-color: var(--pf-ok); }
#upload-form.has-file .dz-text { font-weight: 600; word-break: break-all; }

/* ── băng tổng kết ────────────────────────────────────────────────────────── */
.verdict {
  display: flex; align-items: center; gap: 12px;
  border-radius: var(--r); padding: 14px 16px; margin: 4px 0 8px;
  border: 1px solid var(--line); border-left-width: 5px;
}
.verdict .v-icon {
  width: 34px; height: 34px; flex: 0 0 34px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 18px;
}
.verdict .v-text { min-width: 0; }
.verdict .v-title { font-weight: 700; font-size: 15px; display: block; }
.verdict .v-sub { font-size: 13px; color: var(--ink-soft); display: block; }
.verdict.ok   { border-color: var(--pf-ok-line);   border-left-color: var(--pf-ok);   background: var(--pf-ok-bg); }
.verdict.ok .v-icon   { background: var(--pf-ok); }
.verdict.bad  { border-color: var(--pf-err-line);  border-left-color: var(--pf-err);  background: var(--pf-err-bg); }
.verdict.bad .v-icon  { background: var(--pf-err); }
.verdict.warn { border-color: var(--pf-warn-line); border-left-color: var(--pf-warn); background: var(--pf-warn-bg); }
.verdict.warn .v-icon { background: var(--pf-warn); }
.verdict.wait { border-color: var(--pf-warn-line); border-left-color: var(--pf-warn); background: var(--pf-warn-bg); }
.verdict.wait .v-icon { background: var(--pf-warn); }

/* ── PDF preview + diagnostic workspace ─────────────────────────────────── */
.preflight-result-layout {
  display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr);
  align-items: start; gap: 20px; margin-top: 2px;
}
.preflight-result-layout.no-preview { grid-template-columns: minmax(0, 1fr); }
.preflight-result-layout.preview-floating { grid-template-columns: minmax(0, 1fr); }
.preflight-diagnostics { min-width: 0; }
.pdf-preview {
  position: sticky; top: 12px; min-width: 0; margin-top: 31px;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--paper);
  box-shadow: 0 12px 32px rgba(31, 26, 20, .12); overflow: hidden;
}
.pdf-preview-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
  padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--card);
}
.pdf-preview-head-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.pdf-preview-float {
  min-height: 28px; padding: 4px 8px; border: 1px solid var(--line); border-radius: 5px;
  background: var(--paper); color: var(--ink); font: 700 10px var(--mono); cursor: pointer;
}
.pdf-preview-float:hover { border-color: var(--ink-soft); }
.pdf-preview-head strong { display: block; margin-top: 2px; font-size: 13px; }
.pdf-preview-kicker { font: 700 10px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); }
.pdf-preview-status { font: 11px var(--mono); color: var(--ink-soft); white-space: nowrap; }
.pdf-preview-controls {
  display: flex; align-items: center; gap: 6px; padding: 8px 10px;
  border-bottom: 1px solid var(--line); background: var(--paper);
  font: 11px var(--mono); color: var(--ink-soft);
}
.pdf-preview-controls button {
  min-height: 30px; padding: 4px 8px; border: 1px solid var(--line); border-radius: 5px;
  background: var(--card); color: var(--ink); font: 11px var(--mono); cursor: pointer;
}
.pdf-preview-controls button:hover { border-color: var(--ink-soft); }
.pdf-preview-controls button:disabled { opacity: .4; cursor: default; }
.pdf-preview-controls input {
  width: 52px; min-height: 30px; padding: 3px 5px; border: 1px solid var(--line);
  border-radius: 5px; font: 11px var(--mono); text-align: center;
}
.pdf-control-spacer { flex: 1; }
.pdf-preview-message { min-height: 390px; display: grid; place-items: center; padding: 24px; color: var(--ink-soft); text-align: center; }
.pdf-preview-message[hidden] { display: none; }
.pdf-canvas-viewport {
  min-height: 390px; max-height: calc(100vh - 225px); overflow: auto;
  padding: 14px; background: #d8d6d1; overscroll-behavior: contain;
}
.pdf-canvas-viewport[hidden] { display: none; }
.pdf-page-layer {
  position: relative; margin: 0 auto; background: #fff; overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,.2);
}
.pdf-page-layer canvas { display: block; width: 100%; height: 100%; }
.pdf-highlight-layer { position: absolute; inset: 0; pointer-events: none; }
.pdf-highlight {
  position: absolute; min-width: 8px; min-height: 8px; border: 3px solid var(--pf-warn);
  background: rgba(245, 158, 11, .30); box-shadow: 0 0 0 2px rgba(255,255,255,.9);
  animation: pf-highlight-pulse .7s ease-out 1;
}
.pdf-highlight.state-error { border-color: var(--pf-err); background: rgba(220, 38, 38, .27); }
.pdf-highlight.approximate { border-style: dashed; }
.pdf-highlight.page { inset: 2%; width: auto !important; height: auto !important; background: transparent; border-width: 4px; }
.pdf-selection {
  min-height: 48px; padding: 10px 13px; border-top: 1px solid var(--line);
  background: var(--card); color: var(--ink-soft); font-size: 12px; line-height: 1.45;
}
.pdf-preview.floating {
  position: fixed; z-index: 1000; top: 8px; left: 8px; margin: 0;
  display: flex; flex-direction: column; min-width: 360px; min-height: 420px;
  max-width: calc(100vw - 16px); max-height: calc(100vh - 16px);
  box-shadow: 0 20px 60px rgba(31, 26, 20, .32);
}
.pdf-preview.floating .pdf-preview-head { cursor: grab; touch-action: none; user-select: none; }
.pdf-preview.floating.dragging .pdf-preview-head { cursor: grabbing; }
.pdf-preview.floating .pdf-preview-message { flex: 1; min-height: 220px; }
.pdf-preview.floating .pdf-canvas-viewport { flex: 1; min-height: 0; max-height: none; }
.pdf-preview.floating .pdf-selection { flex: 0 0 auto; }

/* Tay nắm kéo giãn — chỉ tồn tại ở chế độ nổi. `resize: both` của trình duyệt
   đã bỏ vì nó chỉ cho một góc; đây là bản tự làm, có thêm hai cạnh bên và cạnh
   dưới. Phải nằm gọn bên trong khung vì `.pdf-preview` đang `overflow: hidden`. */
.pdf-resize-handle { display: none; }
.pdf-preview.floating .pdf-resize-handle { display: block; position: absolute; z-index: 3; }
.pdf-preview.floating .pdf-resize-handle.e { top: 14px; bottom: 14px; right: 0; width: 7px; cursor: ew-resize; }
.pdf-preview.floating .pdf-resize-handle.w { top: 14px; bottom: 14px; left: 0; width: 7px; cursor: ew-resize; }
.pdf-preview.floating .pdf-resize-handle.s { left: 14px; right: 14px; bottom: 0; height: 7px; cursor: ns-resize; }
.pdf-preview.floating .pdf-resize-handle.se { right: 0; bottom: 0; width: 16px; height: 16px; cursor: nwse-resize; }
.pdf-preview.floating .pdf-resize-handle.sw { left: 0; bottom: 0; width: 16px; height: 16px; cursor: nesw-resize; }
/* Vạch chéo ở góc dưới-phải: chỗ duy nhất người dùng quen tìm, nên phải nhìn thấy. */
.pdf-preview.floating .pdf-resize-handle.se {
  background-image: linear-gradient(135deg, transparent 46%, var(--line) 46%, var(--line) 58%,
    transparent 58%, transparent 70%, var(--line) 70%, var(--line) 82%, transparent 82%);
}
.pdf-preview.floating.resizing { user-select: none; }
@keyframes pf-highlight-pulse {
  from { opacity: .2; transform: scale(.96); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 1040px) {
  .preflight-result-layout { grid-template-columns: minmax(0, 1fr); }
  .pdf-preview { position: relative; top: auto; order: -1; margin-top: 12px; }
  .pdf-canvas-viewport { max-height: 70vh; }
}

@media (max-width: 720px) {
  .diag-toolbar { align-items: stretch; flex-direction: column; }
  .diag-search { flex-basis: auto; }
  .diag-search input { min-width: 0; }
  .diag-explain, .occurrence-button, .occurrence-static { grid-template-columns: 1fr; gap: 3px; }
  .occurrence-page-summary,
  .occurrence-group-summary { grid-template-columns: 1fr auto; gap: 4px 8px; }
  .occurrence-page-summary::after,
  .occurrence-group-summary::after { grid-column: 2; grid-row: 1; }
  .occurrence-group-action { justify-self: start; }
  .diag-card .diag-top { align-items: flex-start; }
  .diag-pill { padding: 3px 7px; }
  .occurrence-action, .occurrence-unavailable { justify-self: start; }
  .pdf-preview-controls { flex-wrap: wrap; }
  .pdf-control-spacer { display: none; }
  .pdf-preview.floating { min-width: 0; min-height: 360px; }
}

/* ── subtab của trang tải lên ─────────────────────────────────────────────── */
.pf-subnav {
  display: flex; gap: 4px; margin: 18px 0 14px;
  border-bottom: 1px solid var(--line);
}
.pf-subtab {
  appearance: none; background: none; border: 0; cursor: pointer;
  padding: 9px 14px; margin-bottom: -1px;
  font: 700 12px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase;
  color: var(--ink-soft); border-bottom: 2px solid transparent;
}
.pf-subtab:hover { color: var(--ink); }
.pf-subtab.is-active { color: var(--ink); border-bottom-color: var(--ink); }
.pf-subtab-count {
  display: inline-block; margin-left: 6px; padding: 2px 6px; border-radius: 999px;
  font: 700 10px var(--mono); background: var(--pf-nil-bg); color: var(--pf-nil-ink);
  text-transform: none; letter-spacing: 0;
}
.pf-pane[hidden] { display: none; }

/* ── danh mục phép kiểm ───────────────────────────────────────────────────── */
.pfc-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 10px; margin-bottom: 10px;
}
.pfc-bulk { display: flex; flex-wrap: wrap; gap: 6px; }
.pfc-search { flex: 0 1 280px; }
.pfc-search input { width: 100%; min-width: 180px; }
.pfc-summary {
  margin: 0 0 14px; font: 11px/1.6 var(--mono); color: var(--ink-soft);
  word-break: break-word;
}

.pfc-groups { display: flex; flex-direction: column; gap: 18px; }
.pfc-group[hidden] { display: none; }
.pfc-group-head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding-bottom: 8px; border-bottom: 1px solid var(--line);
}
.pfc-group-name { margin: 0; font-size: 14px; letter-spacing: .02em; color: var(--ink); flex: 1; min-width: 120px; }
.pfc-group-counts { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.pfc-group-state { font: 700 10px var(--mono); color: var(--ink-soft); white-space: nowrap; }

.pfc-list { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.pfc-card {
  border: 1px solid var(--line); border-radius: 7px; background: #fff; overflow: hidden;
}
.pfc-card[hidden] { display: none; }
.pfc-top {
  display: flex; align-items: center; gap: 11px; padding: 10px 13px;
  cursor: pointer; list-style: none;
}
.pfc-top::-webkit-details-marker { display: none; }
.pfc-heading { flex: 1; min-width: 0; }
.pfc-title { display: block; font-size: 13.5px; font-weight: 700; color: var(--ink); }
.pfc-meta { display: block; margin-top: 2px; font: 11px var(--mono); color: var(--ink-soft); }
.pfc-sev {
  flex: none; padding: 3px 8px; border-radius: 999px;
  font: 700 10px var(--mono); text-transform: uppercase; letter-spacing: .04em;
}
.pfc-sev.sev-error   { color: var(--pf-err-ink);  background: var(--pf-err-bg);  }
.pfc-sev.sev-warning { color: var(--pf-warn-ink); background: var(--pf-warn-bg); }
.pfc-body { border-top: 1px solid rgba(0,0,0,.08); padding: 12px 14px 14px; }

/* Một mục đã tắt phải NHÌN là đã tắt ngay khi lướt qua, không phải soi công tắc:
   đây là trang người ta mở ra để kiểm tra lại xem mình đã tắt nhầm cái gì. */
.pfc-card.is-off { background: var(--pf-nil-bg); border-color: var(--pf-nil-line); }
.pfc-card.is-off .pfc-title { color: var(--pf-nil-ink); text-decoration: line-through; }
.pfc-card.is-off .pfc-sev { color: var(--pf-nil-ink); background: #fff; }

/* ── công tắc ─────────────────────────────────────────────────────────────── */
.pfc-switch { flex: none; display: inline-flex; align-items: center; cursor: pointer; }
.pfc-switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.pfc-track {
  display: block; position: relative; width: 34px; height: 19px; border-radius: 999px;
  background: var(--pf-nil-line); transition: background .12s ease;
}
.pfc-track::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 15px; height: 15px;
  border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.25);
  transition: transform .12s ease;
}
.pfc-switch input:checked + .pfc-track { background: var(--pf-ok); }
.pfc-switch input:checked + .pfc-track::after { transform: translateX(15px); }
.pfc-switch input:indeterminate + .pfc-track { background: var(--pf-warn-line); }
.pfc-switch input:indeterminate + .pfc-track::after { transform: translateX(7px); }
.pfc-switch input:focus-visible + .pfc-track { outline: 2px solid var(--ink); outline-offset: 2px; }

@media (max-width: 640px) {
  .pfc-toolbar { flex-direction: column; align-items: stretch; }
  .pfc-search { flex: 1 1 auto; }
}

/* ── Đầu trang kết quả ────────────────────────────────────────────────────
   Tiêu đề và tên tệp là một khối; hành động nằm bên phải, không chen vào
   giữa hai dòng chữ. Trước đây nút mang class "btn" — một class không tồn
   tại trong stylesheet nào — nên nó render ra một hyperlink trần. */
.pf-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 20px; flex-wrap: wrap;
}
.pf-head-text { min-width: 0; }
.pf-head h1 { margin: 0 0 6px; }
.pf-file {
  margin: 0; display: flex; align-items: baseline; flex-wrap: wrap;
  gap: 4px 10px; font-size: 13px; color: var(--ink-soft);
}
.pf-file-name {
  font-weight: 650; color: var(--ink);
  /* Tên tệp dài không được đẩy nút ra khỏi hàng. */
  max-width: 46ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pf-file-meta { font-family: var(--mono); font-size: 12px; }
.pf-file-link { color: var(--ink-soft); text-underline-offset: 2px; }
.pf-file-link:hover { color: var(--ink); }

.pf-action {
  flex: none; display: inline-flex; align-items: center; gap: 8px;
  /* Nhãn dùng font UI, không dùng --mono: bộ monospace fallback dựng dấu tiếng
     Việt sai, "Mở" ra thành "Mơ˒". Mono chỉ để cho số liệu ASCII. */
  font: 600 13.5px/1 var(--sans); text-decoration: none; white-space: nowrap;
  padding: 10px 16px; border-radius: 8px;
  color: var(--ink); background: var(--card);
  border: 1.5px solid var(--line);
  transition: border-color .12s ease, background .12s ease, transform .12s ease;
}
.pf-action svg {
  width: 15px; height: 15px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
}
.pf-action:hover { border-color: var(--ink); background: var(--card-2); }
.pf-action:active { transform: translateY(1px); }
.pf-action:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 640px) {
  .pf-head { gap: 12px; }
  .pf-file-name { max-width: 100%; }
  /* Trên màn hẹp nút chiếm cả hàng: đủ rộng để bấm bằng ngón tay. */
  .pf-action { width: 100%; justify-content: center; }
}