/* Worksheet builder, v4. Shared frame: progress rail, sections, fields, checklist, export bar.
   Everything is scoped under the tool's wrapper class; colours, type and spacing are v4 tokens. */

/* The raised sheet clips its overflow, which stops the rail from sticking. Clip without
   creating a scroll container, on this page only. */
.bp-sheet:has(.mfb) { overflow: clip; }

.mfb { --rail-w: 232px; color: var(--fg-1); font-family: var(--font-sans); }
.mfb *, .mfb *::before, .mfb *::after { box-sizing: border-box; }
.mfb h2, .mfb h3, .mfb h4, .mfb h5, .mfb p { margin: 0; }

.mfb .fw-app { display: grid; grid-template-columns: var(--rail-w) minmax(0, 1fr); column-gap: var(--space-8); align-items: start; }
.mfb .gtm-work { min-width: 0; display: grid; gap: 0; }

/* ── Progress rail ───────────────────────────────────────────────────── */
.mfb .gtm-rail { position: sticky; top: calc(var(--ws-nav-offset, 0px) + var(--space-5)); transition: top var(--ws-nav-ease, 0s); display: grid; gap: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--rule-strong); max-height: calc(100vh - var(--ws-nav-offset, 0px) - var(--space-6)); overflow-y: auto; }
.mfb .gtm-rail-head { display: flex; justify-content: space-between; align-items: baseline; }
.mfb .gtm-rail-title { font: 600 12.5px/1.3 var(--font-sans); color: var(--fg-2); }
.mfb .gtm-rail-pct { font: 300 30px/1 var(--font-sans); letter-spacing: -.02em; font-variant-numeric: tabular-nums; color: var(--fg-1); }
.mfb .gtm-rail-bar { height: 2px; background: var(--rule); }
.mfb .gtm-rail-bar-fill { height: 100%; width: 0; background: var(--bp-primary); transition: width .15s ease; }
.mfb .gtm-rail-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.mfb .gtm-rail-list li { margin: 0; border-bottom: 1px solid var(--rule); }
.mfb .gtm-rail-link {
  display: grid; grid-template-columns: 2.25rem minmax(0, 1fr); align-items: baseline; width: 100%;
  padding: 8px 0 8px 10px; margin: 0; border: 0; border-left: 2px solid transparent; background: none; cursor: pointer;
  font: 400 14px/1.35 var(--font-sans); color: var(--fg-2); text-align: left;
}
.mfb .gtm-rail-link:hover { color: var(--fg-1); }
.mfb .gtm-rail-link.is-active { color: var(--fg-1); font-weight: 600; border-left-color: var(--bp-primary); }
.mfb .gtm-rail-num { font: 400 12.5px/1.35 var(--font-sans); font-variant-numeric: tabular-nums; color: var(--fg-2); }
.mfb .gtm-rail-link.is-complete .gtm-rail-num { color: var(--fg-1); }
.mfb .gtm-rail-link.is-complete .gtm-rail-num span::after { content: ""; display: inline-block; width: 6px; height: 6px; margin-left: 6px; vertical-align: 1px; background: var(--status-positive); }
.mfb .gtm-rail-actions { display: grid; gap: var(--space-2); justify-items: start; padding-top: var(--space-2); }
.mfb .gtm-save-status { font: 400 13px/1.45 var(--font-sans); color: var(--fg-2); }
.mfb .gtm-save-status.is-saving { color: var(--fg-1); }

@media (max-width: 960px) {
  .mfb .fw-app { grid-template-columns: minmax(0, 1fr); row-gap: var(--space-6); }
  .mfb .gtm-rail { position: static; max-height: none; overflow: visible; }
  .mfb .gtm-rail-list { display: none; }
  .mfb .gtm-rail-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); }
  .mfb .gtm-save-status { flex-basis: 100%; }
}

/* ── Section headers ─────────────────────────────────────────────────── */
.mfb .gtm-section-header { display: grid; gap: var(--space-3); padding-top: var(--space-8); margin-bottom: var(--space-5); }
.mfb .gtm-work > .gtm-section-header:first-child { padding-top: 0; }
.mfb .gtm-section-title { font-size: 30px; line-height: 1.12; font-weight: 600; letter-spacing: -.02em; text-wrap: balance; }
.mfb .gtm-section-blurb { font-size: 16px; line-height: 1.55; color: var(--fg-2); max-width: 64ch; }
@media (max-width: 640px) { .mfb .gtm-section-title { font-size: 26px; } }

/* ── Step rows: a schedule, separated by hairlines ───────────────────── */
.mfb .gtm-row { display: grid; gap: var(--space-5); padding: var(--space-6) 0; border-top: 1px solid var(--rule-strong); }
.mfb .gtm-row + .gtm-row { border-top-color: var(--rule); }
.mfb .gtm-row-head { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr) auto; column-gap: var(--space-5); align-items: start; }
.mfb .gtm-step { font: 300 30px/1 var(--font-sans); letter-spacing: -.02em; color: var(--fg-2); font-variant-numeric: tabular-nums lining-nums; padding-top: 2px; }
.mfb .gtm-row.is-active .gtm-step { color: var(--fg-accent); }
.mfb .gtm-row-titles { display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; }
.mfb .gtm-row-title { order: 1; font-size: 21px; line-height: 1.28; font-weight: 600; letter-spacing: -.01em; }
.mfb .gtm-row-prompt { order: 2; font-size: 16px; line-height: 1.55; color: var(--fg-1); max-width: 64ch; }
.mfb .gtm-row-eyebrow { order: 3; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; font: 400 13px/1.45 var(--font-sans); color: var(--fg-2); }
.mfb .gtm-row-tag { font-weight: 600; color: var(--fg-accent); }
.mfb .gtm-row-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 18rem); column-gap: var(--space-6); row-gap: var(--space-4); align-items: start; padding-left: calc(4.5rem + var(--space-5)); }
@media (max-width: 1100px) { .mfb .gtm-row-body { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) {
  .mfb .gtm-row-head { grid-template-columns: minmax(0, 1fr); row-gap: var(--space-2); }
  .mfb .gtm-row-body { padding-left: 0; }
}

/* ── Fields: label above a square box with a hairline ───────────────── */
.mfb .gtm-field { display: grid; gap: 6px; align-content: start; min-width: 0; }
.mfb .gtm-field-label { font: 600 12.5px/1.35 var(--font-sans); letter-spacing: .005em; color: var(--fg-1); }
.mfb textarea, .mfb input[type="text"] {
  display: block; width: 100%; margin: 0;
  font: 400 15px/1.5 var(--font-sans); color: var(--fg-1);
  background: var(--bg-page); border: 1px solid var(--rule-input); border-radius: var(--radius-sheet);
  padding: 10px 12px;
}
.mfb textarea { min-height: 88px; resize: vertical; }
.mfb textarea::placeholder, .mfb input::placeholder { color: var(--fg-2); opacity: .8; }
.mfb textarea:hover, .mfb input[type="text"]:hover { border-color: var(--rule-strong); }
.mfb textarea:focus-visible, .mfb input[type="text"]:focus-visible { outline: var(--rule-bold) solid var(--focus); outline-offset: -1px; border-color: var(--focus); }
.mfb textarea:disabled, .mfb input:disabled { background: transparent; color: var(--fg-2); cursor: not-allowed; }
.mfb .gtm-field-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); font: 400 13px/1.45 var(--font-sans); color: var(--fg-2); }
.mfb .gtm-counter { font-variant-numeric: tabular-nums; }
.mfb .gtm-counter.is-too-long { color: var(--status-negative); font-weight: 600; }
.mfb textarea.is-too-long { border-color: var(--status-negative); }

/* Hint: where to look, and a worked line. */
.mfb .gtm-hint { display: grid; gap: 6px; padding: var(--space-4); background: var(--bg-sunken); font-size: 14px; line-height: 1.5; }
.mfb .gtm-hint-eyebrow { font: 600 12.5px/1.3 var(--font-sans); color: var(--fg-1); }
.mfb .gtm-hint-source { color: var(--fg-2); }
.mfb .gtm-hint-example { color: var(--fg-1); }

/* ── Checklist: square marks ─────────────────────────────────────────── */
.mfb .gtm-checklist { display: grid; border-top: 1px solid var(--rule-strong); }
.mfb .gtm-check-item { display: grid; grid-template-columns: 22px minmax(0, 1fr); column-gap: var(--space-4); padding: var(--space-4) 0; border-bottom: 1px solid var(--rule); cursor: pointer; }
.mfb .gtm-check-box {
  appearance: none; -webkit-appearance: none; margin: 3px 0 0; width: 18px; height: 18px;
  border: 1.5px solid var(--fg-1); border-radius: var(--radius-mark); background: var(--bg-page); cursor: pointer;
}
.mfb .gtm-check-box:checked { background: var(--fg-1); box-shadow: inset 0 0 0 3px var(--bg-page); }
.mfb .gtm-check-body { display: grid; gap: 4px; }
.mfb .gtm-check-title { font-size: 16px; line-height: 1.4; font-weight: 600; }
.mfb .gtm-check-desc { font-size: 15px; line-height: 1.55; color: var(--fg-2); max-width: 70ch; }
.mfb .gtm-check-item:has(.gtm-check-box:checked) .gtm-check-title { color: var(--fg-2); }

/* ── Export bar ──────────────────────────────────────────────────────── */
.mfb .gtm-export-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-4); margin-top: var(--space-8); padding-top: var(--space-5); border-top: 1px solid var(--rule-strong); }
.mfb .gtm-export-bar-title { font-size: 21px; line-height: 1.28; font-weight: 600; letter-spacing: -.01em; }
.mfb .gtm-export-bar-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* ── Print: the worksheet, without its controls ─────────────────────── */
@media print {
  .mfb .fw-app { display: block; }
  .mfb .gtm-rail, .mfb .fw-no-print, .mfb .gtm-export-bar, .mfb .stage-toggle { display: none !important; }
  .mfb textarea, .mfb input[type="text"] { border: 0; border-bottom: 1px solid var(--rule); padding: 4px 0; background: transparent; resize: none; overflow: visible; }
  .mfb .gtm-row, .mfb .gtm-check-item { break-inside: avoid; }
  .bp-sheet:has(.mfb) .ws-app__note { display: none; }
}

/* ── Marketing funnel builder ────────────────────────────────────────── */
/* Ownership is drawn in ink, not colour: marketing in graphite, sales in ink,
   the handoff in Blueprint Blue (the page's one accent), the hand-raiser path dashed. */
.mfb { --c-mktg: var(--fg-2); --c-sales: var(--fg-1); --c-hand: var(--bp-primary); --c-hrl: var(--fg-2); }

.mfb .principle { padding: var(--space-6) 0; border-top: 1px solid var(--rule-strong); display: grid; gap: var(--space-4); }
.mfb .principle-quote { font-size: 24px; line-height: 1.3; font-weight: 450; letter-spacing: -.015em; max-width: 40ch; text-wrap: pretty; }
.mfb .principle-attribution { font-size: 16px; line-height: 1.55; color: var(--fg-2); max-width: 64ch; }
@media (max-width: 640px) { .mfb .principle-quote { font-size: 21px; } }

.mfb .goal-banner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-6); align-items: start; padding: var(--space-6) 0; border-top: 1px solid var(--rule-strong); }
.mfb .goal-banner > div:first-child { display: flex; flex-direction: column; gap: var(--space-2); }
.mfb .goal-banner-title { order: 1; font-size: 21px; line-height: 1.28; font-weight: 600; letter-spacing: -.01em; }
.mfb .goal-banner-blurb { order: 2; font-size: 16px; line-height: 1.55; }
.mfb .goal-banner-eyebrow { order: 3; font: 400 13px/1.45 var(--font-sans); color: var(--fg-2); }
.mfb .goal-banner-input { min-height: 120px; font-size: 17px; }
@media (max-width: 760px) { .mfb .goal-banner { grid-template-columns: minmax(0, 1fr); } }

.mfb .foundations-grid, .mfb .stage-fields, .mfb .handoff-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5) var(--space-5); padding-left: calc(4.5rem + var(--space-5)); }
.mfb .stage-fields--full { grid-column: 1 / -1; }
@media (max-width: 760px) { .mfb .foundations-grid, .mfb .stage-fields, .mfb .handoff-list { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) { .mfb .foundations-grid, .mfb .stage-fields, .mfb .handoff-list { padding-left: 0; } }

/* Stage labels: words with an ownership mark, never coloured pills. */
.mfb .stage-pill { display: inline-flex; align-items: center; gap: 6px; font: 400 13px/1.45 var(--font-sans); color: var(--fg-2); }
.mfb .stage-pill:is(.is-marketing, .is-sales, .is-handoff, .is-hrl, .is-shared)::before { content: ""; width: 8px; height: 8px; flex: none; }
.mfb .stage-pill.is-marketing::before { background: var(--c-mktg); }
.mfb .stage-pill.is-sales::before { background: var(--c-sales); }
.mfb .stage-pill.is-handoff::before { background: var(--c-hand); }
.mfb .stage-pill.is-hrl::before { border: 1.5px dashed var(--fg-1); }
.mfb .stage-pill.is-shared::before { border: 1.5px solid var(--fg-1); }
.mfb .stage-pill:is(.is-marketing, .is-sales, .is-handoff, .is-hrl, .is-shared) { color: var(--fg-1); font-weight: 600; }

.mfb .stage-toggle { display: inline-flex; align-items: center; gap: 8px; font: 500 14px/1.2 var(--font-sans); color: var(--fg-1); cursor: pointer; white-space: nowrap; padding-top: 4px; }
.mfb .stage-toggle input { appearance: none; -webkit-appearance: none; margin: 0; width: 18px; height: 18px; border: 1.5px solid var(--fg-1); border-radius: var(--radius-mark); background: var(--bg-page); cursor: pointer; }
.mfb .stage-toggle input:checked { background: var(--fg-1); box-shadow: inset 0 0 0 3px var(--bg-page); }
.mfb .gtm-row.is-disabled .gtm-row-title, .mfb .gtm-row.is-disabled .gtm-row-prompt { color: var(--fg-2); }
.mfb .gtm-row.is-disabled .stage-fields { opacity: .45; }
@media (max-width: 640px) { .mfb .stage-toggle { justify-self: start; } }

/* Handoff requirements */
.mfb .handoff-item { display: grid; gap: var(--space-2); align-content: start; padding-top: var(--space-3); border-top: 1px solid var(--rule); }
.mfb .handoff-item-title { font: 600 16px/1.35 var(--font-sans); }
.mfb .handoff-item-prompt { font-size: 14px; line-height: 1.5; color: var(--fg-2); }

/* Cadence: a schedule; scrolls inside itself on a phone */
.mfb .cadence-grid { display: grid; grid-template-columns: 7rem minmax(0, 1fr) minmax(0, 1.4fr); margin-left: calc(4.5rem + var(--space-5)); border-top: var(--rule-bold) solid var(--rule-strong); }
.mfb .cadence-row { display: contents; }
.mfb .cadence-cell { padding: var(--space-3) var(--space-3) var(--space-3) 0; border-bottom: 1px solid var(--rule); min-width: 0; }
.mfb .cadence-row.is-header .cadence-cell { font: 600 12.5px/1.3 var(--font-sans); color: var(--fg-2); padding-top: var(--space-2); }
.mfb .cadence-when { font: 600 15px/1.35 var(--font-sans); padding-top: var(--space-4); }
.mfb .cadence-cell textarea { min-height: 64px; }
@media (max-width: 640px) {
  .mfb .cadence-grid { margin-left: 0; grid-template-columns: minmax(0, 1fr); }
  .mfb .cadence-row.is-header { display: none; }
  .mfb .cadence-when { border-bottom: 0; padding-bottom: 0; }
}

/* Anti-patterns: a plain list under the checklist */
.mfb .antipatterns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--space-6); margin-top: var(--space-6); border-top: 1px solid var(--rule); }
.mfb .antipattern { padding: var(--space-3) 0 var(--space-3) var(--space-4); border-bottom: 1px solid var(--rule); font-size: 14px; line-height: 1.5; color: var(--fg-2); position: relative; }
.mfb .antipattern::before { content: ""; position: absolute; left: 0; top: 19px; width: 8px; height: 1.5px; background: var(--status-negative); }
.mfb .antipattern strong { color: var(--fg-1); font-weight: 600; }
@media (max-width: 760px) { .mfb .antipatterns { grid-template-columns: minmax(0, 1fr); } }

/* ── The three lenses diagram ────────────────────────────────────────── */
.mfb .fnl-frame { padding: var(--space-6) 0; border-top: 1px solid var(--rule-strong); display: grid; gap: var(--space-5); min-width: 0; }
.mfb .fnl-frame-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-5); align-items: start; }
.mfb .fnl-frame-head > div { display: flex; flex-direction: column; gap: var(--space-2); }
.mfb .fnl-frame-title { order: 1; font-size: 21px; line-height: 1.28; font-weight: 600; letter-spacing: -.01em; }
.mfb .fnl-frame-eyebrow { order: 2; font: 400 13px/1.45 var(--font-sans); color: var(--fg-2); }
.mfb .fnl-frame-note { font-size: 15px; line-height: 1.55; color: var(--fg-2); }
.mfb .fnl-frame-note strong { color: var(--fg-1); font-weight: 600; }
@media (max-width: 760px) { .mfb .fnl-frame-head { grid-template-columns: minmax(0, 1fr); } }

.mfb .fnl-legend { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-5); font-size: 13px; color: var(--fg-2); padding-bottom: var(--space-4); border-bottom: 1px solid var(--rule); }
.mfb .fnl-legend-item { display: inline-flex; align-items: center; gap: 8px; color: var(--fg-1); }
.mfb .fnl-legend-spacer { margin-left: auto; }
.mfb .fnl-sw { width: 12px; height: 12px; flex: none; }
.mfb .fnl-sw-mktg { background: var(--c-mktg); }
.mfb .fnl-sw-hand { background: var(--c-hand); }
.mfb .fnl-sw-sales { background: var(--c-sales); }
.mfb .fnl-sw-hrl { border: 1.5px dashed var(--fg-1); }

/* The band and the stages scroll sideways inside their own box on narrow screens. */
.mfb .fnl-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.mfb .fnl-scroll > * { min-width: 820px; }
.mfb .fnl-journey { display: grid; grid-template-columns: 3fr 3fr 2fr; gap: var(--space-2); margin-bottom: var(--space-2); }
.mfb .fnl-journey-cell { padding: var(--space-2) 0; border-top: var(--rule-bold) solid var(--rule-strong); font-size: 13px; line-height: 1.4; color: var(--fg-2); }
.mfb .fnl-journey-stage { display: block; font: 600 14px/1.3 var(--font-sans); color: var(--fg-1); }
.mfb .fnl-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); grid-template-rows: auto auto; gap: var(--space-2); }
.mfb .fnl-stage {
  position: relative; display: flex; flex-direction: column; gap: 4px; min-height: 128px; padding: var(--space-4) var(--space-3) var(--space-3);
  background: var(--bg-page); border: 1px solid var(--rule); border-top: 3px solid var(--stage-color, var(--c-mktg)); border-radius: var(--radius-sheet);
  font: inherit; color: var(--fg-1); text-align: left; cursor: pointer; transition: border-color .12s ease, background-color .12s ease;
}
.mfb .fnl-stage.is-mktg { --stage-color: var(--c-mktg); }
.mfb .fnl-stage.is-sales { --stage-color: var(--c-sales); }
.mfb .fnl-stage.is-hand { --stage-color: var(--c-hand); }
.mfb .fnl-stage.is-hrl { --stage-color: var(--fg-1); border-style: dashed; border-top-style: dashed; }
.mfb .fnl-stage:hover { border-color: var(--rule-strong); border-top-color: var(--stage-color); }
.mfb .fnl-stage[aria-pressed="true"] { outline: var(--rule-bold) solid var(--focus); outline-offset: -2px; }
.mfb .fnl-stage-num { font: 400 12.5px/1.3 var(--font-sans); color: var(--fg-2); }
.mfb .fnl-stage-name { margin: 0; font: 600 16px/1.25 var(--font-sans); letter-spacing: -.005em; }
.mfb .fnl-stage-desc { margin: 0; font-size: 13px; line-height: 1.4; color: var(--fg-2); }
.mfb .fnl-stage-owner { margin-top: auto; font: 500 12.5px/1.3 var(--font-sans); color: var(--fg-1); }
.mfb .fnl-stage-hrl-cell { grid-column: 4 / 6; grid-row: 2; min-height: 0; }

.mfb .fnl-detail { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: var(--space-6); padding: var(--space-5) 0 0; border-top: 1px solid var(--rule-strong); min-height: 200px; }
.mfb .fnl-col { display: grid; gap: var(--space-2); align-content: start; min-width: 0; }
.mfb .fnl-col h6 { margin: 0; font: 600 12.5px/1.3 var(--font-sans); color: var(--fg-2); }
.mfb .fnl-col h6 + h6, .mfb .fnl-col p + h6, .mfb .fnl-col ul + h6 { margin-top: var(--space-3); }
.mfb .fnl-col h4 { margin: 0; font: 600 21px/1.28 var(--font-sans); letter-spacing: -.01em; }
.mfb .fnl-col p { font-size: 15px; line-height: 1.55; }
.mfb .fnl-col ul { margin: 0; padding-left: 1.1em; font-size: 15px; line-height: 1.5; }
.mfb .fnl-col li { margin-bottom: 4px; }
.mfb .fnl-kpi-row { display: grid; border-top: 1px solid var(--rule); }
.mfb .fnl-kpi { padding: 7px 0; border-bottom: 1px solid var(--rule); font-size: 14px; line-height: 1.4; }
@media (max-width: 860px) { .mfb .fnl-detail { grid-template-columns: minmax(0, 1fr); gap: var(--space-5); } }