/* ──────────────────────────────────────────────────────────────
   ARSHIA Learning — marketing sheet · "THE FILED RECORD"
   (2026-07 step-change redesign, per docs/MARKETING-REDESIGN-SPEC.md)

   The page IS the record: one bound prospectus — warm-paper leaves,
   matte ink plates tipped in, a sealed back cover. Two voices:
   Fraunces (cover type) over Schibsted Grotesk (UI); IBM Plex Mono
   appears only where a record artifact appears. Prestige is
   subtraction: no grain, no gradients, no spotlights, no glow.

   Loads after styles.css + landing.css, applies inside body.mk only.
   Sheet order: tokens → styles → landing → marketing → receipt.

   CONTENTS
   1. Page world (warm tokens, base type, selection, skip link)
   2. Type roles + folio marks + masthead + pull-lines
   3. Buttons (the ink stamp) + focus + nav elevation + print/motion
   4. Mockup kit (spec-frame windows, dash, builder, rules, phone)
   5. Hero — cover of the file
   6. Flagship — the imprint page
   7. Problem — exhibits A–D
   8. Ink Plate I — product tour (exhibit rows)
   9. Proof · mid-CTA interleaf · try-it specimen · gear index ·
      the register (wall) · file folders (cases) · tenant records
      (demos) · audit memo (versus) · docket + seal (pricing) ·
      back cover (CTA) · footer
   10. Responsive
   ────────────────────────────────────────────────────────────── */

/* ══ 1. PAGE WORLD ══════════════════════════════════════════ */
:root {
  --nav-h: 70px;
  /* Status colours tuned for ink plates (record-state only) */
  --st-green-bright: #2FBF71;
  --st-blue-bright: #5BB5FF;
  --st-amber-bright: #F5A623;
  --st-red-bright: #F0564F;
  /* Text/line roles on each ground */
  --mk-paper-text: rgba(251, 247, 239, 0.92);  /* body on ink plates */
  --mk-paper-dim: rgba(251, 247, 239, 0.72);   /* secondary on ink plates */
  --ink-line: rgba(251, 247, 239, 0.14);
  --ink-text-dim: rgba(251, 247, 239, 0.72);
  --paper-line: var(--clr-hair-warm);          /* every hairline on cream is warm */
  --paper-text-dim: var(--clr-ink-warm-2);
}

/* Warm document world: shift the shared neutrals to cream so every
   inherited component reads as warm paper. (Moved from receipt.css.) */
body.mk {
  --clr-grey: #F4EEE1;
  --clr-white: #FFFDF9;
  --clr-bg-grey: #E7DECB;
  --clr-med-blue: #CFE0EC;
  background: var(--clr-paper);
  color: var(--clr-ink-warm);
  font-family: var(--ff-display);
  line-height: 1.55;
  font-feature-settings: "kern" 1, "liga" 1;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

/* Product mockups are screenshots of the app: they keep the app's own
   face (Roboto) and read as a distinct, real artifact. */
.mk .mk-window, .mk .mk-phone, .mk .mk-activity, .mk .mk-scenario { font-family: var(--ff-body); }

.mk ::selection { background: var(--clr-ink); color: var(--clr-paper); }

.mk h1, .mk h2, .mk h3,
.mk-problem__punch { text-wrap: balance; hyphens: none; }
.mk p, .mk figcaption, .mk li { text-wrap: pretty; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

.mk section { scroll-margin-top: 88px; }
.mk [id] { scroll-margin-top: 88px; }

/* One section rhythm across the book (plates set their own inside §8/§9) */
.mk .section { padding: var(--mk-section) 0; }

/* ─── Skip link ───────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: 1rem; top: -5rem;
  z-index: 100;
  background: var(--clr-white);
  color: var(--clr-ink-warm);
  font-weight: var(--fw-semi-bold);
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  border: var(--mk-hair);
  box-shadow: none; /* shadow only when revealed — no resting blob at the masthead */
  transition: top .15s ease;
}
.skip-link:focus-visible,
.skip-link:focus { top: 1rem; text-decoration: none; box-shadow: var(--shadow-card); }

/* ══ 2. TYPE ROLES · FOLIOS · MASTHEAD ══════════════════════ */
/* Cover type: Fraunces carries H1, every section H2 and the pull-lines.
   Nowhere else — never in buttons, labels or mockups. */
.mk h1, .mk h2 {
  font-family: var(--ff-serif);
  font-weight: 560;
  font-variation-settings: "opsz" auto;
}
.mk h3, .mk h4 { font-family: var(--ff-display); }

.mk-h2 {
  font-size: var(--t-h2);
  line-height: 1.05;
  letter-spacing: -0.005em;
  margin: 0 0 1rem;
  max-width: 22ch;
  color: var(--clr-ink-warm);
}

.mk-head { margin-bottom: clamp(2.25rem, 5vw, 3.5rem); max-width: 760px; }
.mk-head__sub {
  font-size: var(--t-lede);
  line-height: 1.55;
  color: var(--clr-ink-warm-2);
  max-width: 52ch;
  margin: 0;
}
.mk-head--ondark .mk-h2 { color: var(--clr-paper); }
.mk-head--ondark .mk-head__sub { color: var(--mk-paper-text); }

/* Masthead — folio 01, the cover's running head */
.mk-masthead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
  border-bottom: var(--mk-hair);
  padding: 1rem 0 0.8rem;
  margin: 0 0 clamp(2rem, 4.5vw, 3.5rem);
}

/* Folio marks — the old eyebrows, restyled as the prospectus device:
   mono label sitting on a hairline, left `02 / THE PROBLEM`,
   right `COHORT PROSPECTUS · P.02/08`. */
.mk-eyebrow {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
  border-top: var(--mk-hair);
  padding-top: 0.7rem;
  margin: 0 0 1.4rem;
}
.mk-eyebrow > span:last-child:not(:only-child) { text-align: right; }
.mk-head--ondark .mk-eyebrow,
.mk-tour .mk-eyebrow, .mk-proof .mk-eyebrow, .mk-demos .mk-eyebrow,
.section--cta .mk-eyebrow {
  border-top: var(--mk-hair-ink);
  color: var(--mk-paper-dim);
}

/* Exhibit caption (free-standing, e.g. under the tour phone) */
.mk-exhibit-cap {
  display: block;
  text-align: center;
  margin-top: 1rem;
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mk-paper-dim);
  font-variant-numeric: tabular-nums;
}

/* Plate edges — full-bleed perforation rule where paper meets ink */
.mk-tour::before,
.mk-demos::before,
.section--cta::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--clr-hair-warm) 0 6px, transparent 6px 13px);
}
.mk-midcta::after,
.mk-demos::after,
.section--cta::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--clr-hair-warm) 0 6px, transparent 6px 13px);
}
.mk-tour, .mk-demos, .mk-midcta, .section--cta { position: relative; }

/* The double-ring seal (harvested from the retired .mk-seats stamp).
   Budget: founder stamp + back-cover seal ONLY — pass 2 places both. */
.mk-seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 5.4rem;
  height: 5.4rem;
  border-radius: 50%;
  border: 1px solid var(--clr-ink-warm);
  box-shadow: 0 0 0 3px transparent, 0 0 0 4px var(--clr-ink-warm);
  color: var(--clr-ink-warm);
  font-family: var(--ff-mono);
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.4;
  padding: 0.6rem;
}
.mk-seal--ondark {
  border-color: var(--mk-paper-dim);
  box-shadow: 0 0 0 3px transparent, 0 0 0 4px rgba(251, 247, 239, 0.72);
  color: var(--mk-paper-text);
}

/* ══ 3. BUTTONS · FOCUS · NAV · PRINT/MOTION ════════════════ */
/* One button system: the ink stamp (10px radius, not a pill). */
.mk .btn {
  border-radius: 10px;
  min-height: 44px;
  font-weight: 600;
}
.mk .btn--primary {
  background: var(--clr-ink);
  color: var(--clr-paper);
}
.mk .btn--primary:hover {
  background: var(--clr-ink-2);
  color: var(--clr-paper);
  transform: none;
  box-shadow: none;
}
.mk .btn--ghost,
.mk .btn--secondary {
  background: transparent;
  border: 1px solid var(--clr-ink);
  color: var(--clr-ink);
  padding: 0.85rem 1.5rem;
}
.mk .btn--ghost:hover,
.mk .btn--secondary:hover {
  background: rgba(0, 26, 45, 0.06);
  border-color: var(--clr-ink);
  color: var(--clr-ink);
}
.mk .btn--on-dark:hover,
.mk .btn--ghost-light:hover { transform: none; box-shadow: none; }

/* Accessible focus ring: dark-blue on paper, light on ink plates.
   (--clr-dark-blue survives ONLY as the in-progress state + this ring.) */
:focus-visible {
  outline: 3px solid var(--clr-dark-blue, #006AAF) !important;
  outline-offset: 2px !important;
  border-radius: 4px;
}
.mk-tour :focus-visible,
.mk-proof :focus-visible,
.mk-demos :focus-visible,
.lcta :focus-visible {
  outline-color: #8FD0FF !important;
}
/* …except on the cream tipped-in cards inside those plates. */
.mk-demo :focus-visible,
.mk-cta__stub :focus-visible {
  outline-color: var(--clr-dark-blue, #006AAF) !important;
}

/* Sticky nav elevation once scrolled (paper, not white/cool). */
.topnav.is-scrolled {
  background: color-mix(in srgb, var(--clr-paper) 94%, transparent);
  backdrop-filter: saturate(1.05) blur(10px);
  -webkit-backdrop-filter: saturate(1.05) blur(10px);
  border-bottom: var(--mk-hair);
}

/* Print + reveal robustness: nothing is ever gated behind an animation. */
@media print {
  [data-mkr] {
    opacity: 1 !important;
    transform: none !important;
  }
  .topnav { position: static !important; }
}
@media (prefers-reduced-motion: reduce) {
  [data-mkr] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ══ 4. MOCKUP KIT — spec-frame windows + app screens ═══════ */
/* The mac dots are gone: the window bar is a specimen caption bar —
   mono exhibit label left, address right. */
.mk-window {
  background: var(--clr-white);
  border-radius: 10px;
  border: 1px solid rgba(251, 247, 239, 0.16);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  font-size: 14px;
  line-height: 1.4;
}
.mk-window__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 14px;
  background: var(--clr-paper-2);
  border-bottom: var(--mk-hair);
  font-family: var(--ff-mono);
}
.mk-window__cap {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}
.mk-window__url {
  font-size: 11px;
  color: var(--clr-ink-warm-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex-shrink: 1;
}
.mk-window__body { display: flex; }

/* ─── Admin dashboard mock ────────────────────────────────── */
.mk-dash { min-height: 0; }
.mk-dash__side {
  flex: 0 0 126px;
  background: #F6F2E9;
  border-right: var(--mk-hair);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mk-dash__mark {
  width: 24px; height: 24px;
  border-radius: 7px;
  background: var(--clr-ink);
  color: var(--clr-white);
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.mk-dash__navitem {
  font-size: 12.5px;
  font-weight: var(--fw-medium);
  color: rgba(0, 39, 64, 0.6);
  padding: 5px 8px;
  border-radius: 6px;
}
.mk-dash__navitem.is-active {
  background: var(--clr-white);
  color: var(--clr-dark-blue-text);
  font-weight: var(--fw-semi-bold);
  box-shadow: 0 1px 3px rgba(0, 39, 64, 0.08);
}
.mk-dash__main {
  flex: 1;
  min-width: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 13px;
}
.mk-dash__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.mk-dash__date {
  display: block;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 39, 64, 0.5);
}
.mk-dash__title {
  display: block;
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--clr-dark-blue-text);
}
.mk-select {
  font-size: 12px;
  font-weight: var(--fw-medium);
  color: var(--clr-dark-blue-text);
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 6px;
  padding: 4px 9px;
  white-space: nowrap;
}
.mk-select::after { content: " ▾"; color: rgba(0, 39, 64, 0.4); }

.mk-dash__kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(78px, 1fr));
  gap: 9px;
}
.mk-kpi {
  background: #FAF7F0;
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 10px 11px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.mk-kpi__n {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--clr-dark-blue-text);
  font-variant-numeric: tabular-nums;
}
.mk-kpi--alert .mk-kpi__n { color: var(--clr-red); }
.mk-kpi__l { font-size: 10.5px; color: rgba(0, 39, 64, 0.6); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.mk-dash__panel {
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 11px 13px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mk-dash__sub {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 39, 64, 0.5);
}
.mk-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.mk-avatar {
  width: 24px; height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--clr-paper-2);
  color: var(--clr-ink-warm);
  font-size: 9px;
  font-weight: var(--fw-bold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.08em;
}
.mk-row__who {
  flex: 1;
  min-width: 0;
  font-size: 12.5px;
  font-weight: var(--fw-medium);
  color: var(--clr-dark-blue-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mk-row__who em {
  font-style: normal;
  color: rgba(0, 39, 64, 0.5);
  font-weight: var(--fw-regular);
}
.mk-row__who em::before { content: "· "; }

.mk-status {
  font-family: var(--ff-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.mk-status--overdue { background: rgba(212, 43, 42, 0.1); color: #B3241F; }
.mk-status--due { background: var(--clr-amber-soft); color: var(--clr-amber); }
.mk-status--draft { background: var(--clr-bg-light-blue); color: var(--clr-dark-blue); }

.mk-minibtn {
  font-size: 11.5px;
  font-weight: var(--fw-semi-bold);
  color: var(--clr-ink-warm);
  background: var(--clr-white);
  border: 1px solid rgba(6, 32, 43, 0.3);
  border-radius: 6px;
  padding: 4px 9px;
  white-space: nowrap;
  flex-shrink: 0;
}
.mk-minibtn--primary {
  background: var(--clr-ink);
  border-color: var(--clr-ink);
  color: var(--clr-white);
}

.mk-hbar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.mk-hbar__l {
  flex: 0 0 104px;
  font-size: 11.5px;
  color: rgba(0, 39, 64, 0.65);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mk-hbar__track {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(0, 39, 64, 0.07);
  overflow: hidden;
}
.mk-hbar__track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--clr-dark-blue);
}
.mk-hbar--low .mk-hbar__track span { background: var(--clr-amber); }
.mk-hbar__n {
  flex: 0 0 32px;
  text-align: right;
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 500;
  color: rgba(0, 39, 64, 0.6);
  font-variant-numeric: tabular-nums;
}

/* ─── Phone mock ──────────────────────────────────────────── */
.mk-phone {
  width: 236px;
  background: var(--clr-ink);
  border-radius: 26px;
  padding: 7px;
  box-shadow: var(--shadow-card);
  position: relative;
}
.mk-phone__notch {
  position: absolute;
  top: 13px; left: 50%;
  transform: translateX(-50%);
  width: 62px; height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.14);
  z-index: 2;
}
.mk-phone__body {
  background: #FDFBF6;
  border-radius: 20px;
  padding: 28px 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}
.mk-phone__hi {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--clr-dark-blue-text);
  padding: 0 2px 2px;
}
.mk-phone__next {
  background: var(--clr-ink);
  color: var(--clr-white);
  border-radius: 12px;
  padding: 12px 13px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mk-phone__label {
  font-family: var(--ff-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--st-blue-bright);
}
.mk-phone__module { font-weight: var(--fw-semi-bold); font-size: 13.5px; line-height: 1.3; }
.mk-phone__meta { font-size: 11px; color: rgba(255, 255, 255, 0.65); }
.mk-phone__pbar {
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.15);
  overflow: hidden;
  margin-top: 2px;
}
.mk-phone__pbar span { display: block; height: 100%; background: var(--st-blue-bright); border-radius: inherit; }
.mk-phone__resume {
  font-size: 12px;
  font-weight: var(--fw-semi-bold);
  color: var(--st-blue-bright);
  margin-top: 3px;
}
.mk-phone__item {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 10px 11px;
  font-size: 12px;
  font-weight: var(--fw-medium);
  color: var(--clr-dark-blue-text);
}
.mk-phone__item-meta {
  margin-left: auto;
  font-family: var(--ff-mono);
  font-size: 9.5px;
  color: rgba(0, 39, 64, 0.55);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.mk-phone__cert {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  font-weight: var(--fw-medium);
  color: var(--clr-green);
  padding: 4px 2px 0;
}
.mk-phone__cert-icon {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--clr-green-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
}

.mk-dot {
  width: 8px; height: 8px;
  border-radius: 2.5px;
  flex-shrink: 0;
  display: inline-block;
}
.mk-dot--complete { background: var(--clr-green); }
.mk-dot--due { background: var(--clr-amber); }
.mk-dot--assigned { background: var(--clr-dark-blue); }
.mk-dot--overdue { background: var(--clr-red); }

/* Builder mock */
.mk-builder { min-height: 0; }
.mk-builder__outline {
  flex: 0 0 156px;
  background: #F6F2E9;
  border-right: var(--mk-hair);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.mk-builder__outline-head {
  font-weight: var(--fw-bold);
  font-size: 12.5px;
  color: var(--clr-dark-blue-text);
  padding: 0 6px 8px;
  line-height: 1.3;
}
.mk-builder__sec {
  font-size: 12px;
  color: rgba(0, 39, 64, 0.6);
  padding: 5px 8px;
  border-radius: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mk-builder__sec.is-done::after { content: " ✓"; color: var(--clr-green); font-weight: 600; }
.mk-builder__sec.is-active {
  background: var(--clr-white);
  color: var(--clr-dark-blue-text);
  font-weight: var(--fw-semi-bold);
  box-shadow: 0 1px 3px rgba(0, 39, 64, 0.08);
}
.mk-builder__add { font-size: 12px; color: var(--clr-dark-blue); font-weight: var(--fw-semi-bold); padding: 7px 8px 0; }
.mk-builder__canvas {
  flex: 1;
  min-width: 0;
  padding: 13px 15px 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mk-builder__top {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding-bottom: 2px;
}
.mk-block {
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--clr-white);
}
.mk-block--active { border-color: rgba(0, 106, 175, 0.55); box-shadow: 0 0 0 3px rgba(0, 106, 175, 0.12); }
.mk-block__tag {
  align-self: flex-start;
  font-family: var(--ff-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 39, 64, 0.55);
  background: var(--clr-paper-2);
  border-radius: 4px;
  padding: 2.5px 6px;
}
.mk-block__tag--activity { background: var(--clr-bg-light-blue); color: var(--clr-dark-blue); }
.mk-block__tag--quiz { background: var(--clr-green-soft); color: var(--clr-green); }
.mk-block__line { display: block; height: 6px; border-radius: 3px; background: rgba(0, 39, 64, 0.08); }
.mk-block__media {
  font-size: 12px;
  color: var(--clr-dark-blue-text);
  background: var(--clr-paper-2);
  border-radius: 6px;
  padding: 14px 10px;
  font-weight: var(--fw-medium);
}

/* Rules mock */
.mk-rules {
  flex-direction: column;
  padding: 17px;
  gap: 13px;
}
.mk-rule {
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.mk-rule__head {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 39, 64, 0.5);
}
.mk-rule__row { display: flex; flex-wrap: wrap; gap: 6px; }
.mk-cond {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  color: var(--clr-dark-blue-text);
  background: var(--clr-paper-2);
  border: var(--mk-hair);
  border-radius: 6px;
  padding: 4px 9px;
  white-space: nowrap;
}
.mk-cond b { color: var(--clr-ink-warm); font-weight: 600; }
.mk-cond--assign {
  background: var(--clr-bg-light-blue);
  border-color: rgba(0, 106, 175, 0.3);
  color: var(--clr-dark-blue);
  font-weight: 500;
}
.mk-rule__arrow {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 39, 64, 0.45);
}
.mk-rule__timeline {
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 13px 15px;
}
.mk-rule__tl-head {
  display: block;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 39, 64, 0.5);
  margin-bottom: 9px;
}
.mk-tl { display: flex; flex-wrap: wrap; gap: 6px 0; align-items: center; }
.mk-tl__step {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: var(--fw-medium);
  color: rgba(0, 39, 64, 0.72);
  white-space: nowrap;
}
.mk-tl__step + .mk-tl__step::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 1px;
  background: rgba(0, 39, 64, 0.2);
  margin: 0 7px;
}
.mk-rules__foot {
  font-size: 12.5px;
  color: rgba(0, 39, 64, 0.6);
  border-top: 1px dashed var(--clr-hair-warm);
  padding-top: 10px;
}

/* ══ 5. HERO — COVER OF THE FILE ════════════════════════════ */
/* Flat warm paper. No gradient, no grain. The masthead hairline is
   the only rule above the fold; the receipt is the cover exhibit. */
.rc-hero {
  background: var(--clr-paper);
  color: var(--clr-ink-warm);
  padding: 0 0 clamp(3.5rem, 7vw, 6rem);
}
.rc-hero__grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.rc-hero__title {
  font-size: var(--t-display);
  line-height: 0.98;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--clr-ink-warm);
  text-wrap: balance;
}
/* Pull-line #1: the accent goes italic green — no underline, so no
   descender strike-through on mobile. */
.rc-hero__title-accent {
  font-style: italic;
  color: var(--clr-green);
}
.rc-hero__lede {
  font-size: var(--t-lede);
  font-weight: 400;
  line-height: 1.55;
  color: var(--clr-ink-warm-2);
  max-width: 46ch;
  margin: 1.4rem 0 0;
}
.rc-hero__lede b { color: var(--clr-ink-warm); font-weight: 600; }
.rc-hero__actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.8rem; }
.rc-hero__stamp {
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  margin: 1.6rem 0 0;
  font-variant-numeric: tabular-nums;
}
.rc-hero__stamp::before { content: "●"; color: var(--clr-green); margin-right: .5rem; font-size: .7em; vertical-align: 1px; }

/* ══ 6. FLAGSHIP — THE IMPRINT PAGE ═════════════════════════ */
/* Front-matter on continuous paper: title at H2 scale, stats as a
   specification table (hairline rows, mono numerals in ink). */
.mk-flag {
  background: var(--clr-paper);
  color: var(--clr-ink-warm);
  padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(3rem, 6vw, 4.5rem);
}
.mk-flag__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.mk-flag__title {
  font-size: var(--t-h2);
  line-height: 1.05;
  letter-spacing: -0.005em;
  color: var(--clr-ink-warm);
  margin: 0 0 0.9rem;
}
.mk-flag__lede {
  font-size: var(--t-lede);
  line-height: 1.55;
  color: var(--clr-ink-warm-2);
  max-width: 52ch;
  margin: 0;
}
.mk-flag__stats {
  display: block;
  margin: 0;
  border-top: var(--mk-hair);
}
.mk-flag__stat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.95rem 0.15rem;
  border-bottom: var(--mk-hair);
}
.mk-flag__stat dt {
  font-family: var(--ff-display);
  font-size: var(--t-body);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--clr-ink-warm);
  margin: 0;
}
.mk-flag__stat dd {
  margin: 0;
  font-family: var(--ff-mono);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1;
  color: var(--clr-ink-warm);
  font-variant-numeric: tabular-nums;
}
/* the imprint's colophon */
.mk-flag__note {
  margin: 0.9rem 0.15rem 0;
  font-size: var(--t-small);
  line-height: 1.5;
  color: var(--clr-ink-warm-2);
}

/* ══ 7. PROBLEM — EXHIBITS A–D ══════════════════════════════ */
.mk-problem { background: var(--clr-paper); }
.mk-problem__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: clamp(2rem, 4.5vw, 4rem);
  align-items: start;
}
.mk-problem__head { min-width: 0; }
@media (min-width: 1100px) {
  .mk-problem__head {
    position: sticky;
    top: calc(var(--nav-h) + 2rem);
  }
}
.mk-problem__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.4rem;
  min-width: 0;
}
.mk-artifact { margin: 0; display: flex; flex-direction: column; min-width: 0; }
.mk-artifact__cap {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  background: var(--clr-paper-2);
  border: var(--mk-hair);
  border-bottom: 0;
  border-radius: 10px 10px 0 0;
  padding: 0.45rem 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}
.mk-artifact__frame {
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 0 0 10px 10px;
  padding: 1.1rem;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.6rem;
  overflow: hidden;
}
.mk-artifact figcaption {
  font-size: var(--t-small);
  line-height: 1.5;
  color: var(--clr-ink-warm-2);
  padding: 0.65rem 0.15rem 0;
}

.mk-sheet {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 0.8fr;
  border: var(--mk-hair);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--ff-mono);
  font-size: 0.62rem;
}
.mk-sheet__cell {
  padding: 0.34rem 0.45rem;
  border-bottom: 1px solid rgba(0, 39, 64, 0.06);
  border-right: 1px solid rgba(0, 39, 64, 0.06);
  color: rgba(0, 39, 64, 0.72);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mk-sheet__cell--head { background: var(--clr-paper-2); font-weight: 600; color: rgba(0, 39, 64, 0.55); }
.mk-sheet__cell--err { color: var(--clr-red); font-weight: 600; }
.mk-sheet__cell--note { color: var(--clr-amber); font-style: italic; }

.mk-inbox__row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.2rem;
  border-bottom: 1px solid rgba(0, 39, 64, 0.07);
  min-width: 0;
}
.mk-inbox__unread { width: 7px; height: 7px; border-radius: 50%; background: var(--clr-dark-blue); flex-shrink: 0; }
.mk-inbox__subj {
  flex: 1;
  min-width: 0;
  font-size: 0.74rem;
  font-weight: var(--fw-semi-bold);
  color: var(--clr-dark-blue-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mk-inbox__time { font-family: var(--ff-mono); font-size: 0.62rem; color: rgba(0, 39, 64, 0.45); }
.mk-inbox__count {
  font-family: var(--ff-mono);
  font-size: 0.66rem;
  color: var(--clr-red);
  padding-top: 0.5rem;
}

.mk-expired {
  border: 1px solid rgba(212, 43, 42, 0.35);
  border-left: 3px solid var(--clr-red);
  border-radius: 8px;
  padding: 0.85rem 0.95rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.mk-expired__title { font-weight: var(--fw-semi-bold); font-size: 0.86rem; color: var(--clr-dark-blue-text); }
.mk-expired__who { font-size: 0.74rem; color: rgba(0, 39, 64, 0.55); }
.mk-expired__stamp {
  align-self: flex-start;
  margin-top: 0.35rem;
  font-family: var(--ff-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #B3241F;
  background: rgba(212, 43, 42, 0.09);
  border: 1px solid rgba(212, 43, 42, 0.25);
  border-radius: 4px;
  padding: 0.22rem 0.5rem;
}

.mk-pdf { display: flex; flex-direction: column; align-items: flex-start; gap: 0.45rem; }
.mk-pdf__icon {
  font-family: var(--ff-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(0, 39, 64, 0.55);
  border: var(--mk-hair);
  border-radius: 6px;
  padding: 0.85rem 0.7rem;
  background: var(--clr-paper-2);
}
.mk-pdf__name { font-family: var(--ff-mono); font-size: 0.74rem; font-weight: 500; color: var(--clr-dark-blue-text); word-break: break-all; }
.mk-pdf__meta { font-size: 0.72rem; color: rgba(0, 39, 64, 0.5); }

/* Pull-line #2 */
.mk-problem__punch {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 560;
  font-size: 1.6rem;
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--clr-ink-warm);
  max-width: 24ch;
}

/* ══ 8. INK PLATE I — PRODUCT TOUR ══════════════════════════ */
/* Flat matte ink. No sticky stack, no gradients, no ghost numerals:
   each screen is a full-width exhibit row on an ink-2 panel. */
.mk-tour {
  background: var(--clr-ink);
  padding: var(--mk-section) 0;
}
.mk-tour__stack {
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.mk-tour__card {
  position: static;
  display: grid;
  grid-template-columns: minmax(0, 0.36fr) minmax(0, 0.64fr);
  gap: clamp(1.5rem, 3.5vw, 3rem);
  align-items: center;
  background: var(--clr-ink-2);
  border: var(--mk-hair-ink);
  border-radius: 10px;
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
}
.mk-tour__copy { min-width: 0; }
.mk-tour__num {
  display: block;
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--mk-paper-dim);
  margin-bottom: 0.9rem;
  font-variant-numeric: tabular-nums;
}
.mk-tour__title {
  font-size: var(--t-h3);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--clr-paper);
  margin: 0 0 0.8rem;
}
.mk-tour__copy > p {
  color: var(--mk-paper-text);
  font-size: var(--t-body);
  line-height: 1.55;
  max-width: 46ch;
  margin: 0 0 1.3rem;
}
.mk-tour__specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.mk-tour__specs li {
  position: relative;
  padding-left: 1.3rem;
  font-size: var(--t-body);
  line-height: 1.55;
  color: var(--mk-paper-text);
}
.mk-tour__specs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--st-green-bright);
}
.mk-tour__visual { min-width: 0; }
.mk-tour__visual--phone { display: flex; flex-direction: column; align-items: center; justify-content: center; }

/* ══ 9. THE REST OF THE BOOK ════════════════════════════════
   Proof of Practice closes Plate I; the paper leaves carry the
   specimen, the gear index, the register and the folders; Plate II
   tips in the four tenant records; the memo and docket settle the
   terms; the back cover seals it. */

/* ── Proof of Practice (Plate I continues — flat ink) ── */
.mk-proof {
  background: var(--clr-ink);
  padding: 0 0 var(--mk-section);
  color: var(--clr-paper);
}
.mk-proof .mk-h2 { color: var(--clr-paper); max-width: 21ch; }
.mk-proof__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.mk-proof__lede {
  color: var(--mk-paper-text);
  font-size: var(--t-lede);
  line-height: 1.55;
  max-width: 52ch;
  margin: 0 0 1.4rem;
}
/* Pull-line #3 — the lede's opening claim, in the cover voice. */
.mk-proof__pull {
  display: block;
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 560;
  font-size: 1.35rem;
  line-height: 1.35;
  color: var(--clr-paper);
  margin: 0 0 0.6rem;
  text-wrap: balance;
}
.mk-proof__origin {
  margin: 1.6rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid rgba(47, 191, 113, 0.55);
  font-size: var(--t-small);
  line-height: 1.5;
  color: var(--mk-paper-dim);
  max-width: 46ch;
}
.mk-proof__visual { min-width: 0; }

.mk-dossier {
  flex-direction: column;
  padding: 15px;
  gap: 12px;
}
.mk-dossier__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.mk-dossier__spark {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.mk-dossier__spark svg { flex: 1; min-width: 0; height: 44px; color: var(--clr-green); }
.mk-report__delta {
  align-self: flex-start;
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--clr-green);
  background: var(--clr-green-soft);
  border-radius: 5px;
  padding: 2px 7px;
  font-variant-numeric: tabular-nums;
}
.mk-dossier__trail {
  border-top: 1px dashed var(--clr-hair-warm);
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.mk-trail__row.mk-trail__row--paper {
  font-family: var(--ff-mono);
  font-size: 11px;
  color: rgba(0, 39, 64, 0.6);
  border: 0;
  padding: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mk-trail__row.mk-trail__row--paper b { color: var(--clr-dark-blue-text); font-weight: 600; }
.mk-dossier__trigger {
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--clr-dark-blue-text);
  background: var(--clr-bg-light-blue);
  border: 1px solid rgba(0, 106, 175, 0.3);
  border-radius: 6px;
  padding: 6px 9px;
  /* the auto-assign record must read in full — wrap, never truncate */
  white-space: normal;
  line-height: 1.45;
}
.mk-dossier__trigger b { color: var(--clr-dark-blue); font-weight: 600; }
.mk-dossier__closed {
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--clr-green);
}
.mk-dossier__closed b { font-weight: 600; }

/* The loop as a procedure line: six mono steps on one hairline,
   the close step in green. A record of the mechanism, not pills. */
.mk-proof__loop {
  list-style: none;
  margin: clamp(2.25rem, 4.5vw, 3.25rem) 0 0;
  padding: 1rem 0 0;
  border-top: var(--mk-hair-ink);
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0;
}
.mk-proof__loop li {
  display: inline-flex;
  align-items: center;
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mk-paper-dim);
  white-space: nowrap;
}
.mk-proof__loop li + li { margin-left: 2rem; position: relative; }
.mk-proof__loop li + li::before {
  content: "→";
  position: absolute;
  left: -1.45rem;
  color: rgba(251, 247, 239, 0.4);
}
/* li-qualified: must outspecify `.mk-proof__loop li` or the close step
   renders paper-dim like the rest */
.mk-proof__loop li.mk-proof__loop-close { color: var(--st-green-bright); }

/* ── Mid-page CTA (interleaf strip inside Plate I) ── */
.mk-midcta { background: var(--clr-ink); }
.mk-midcta .container {
  padding-top: clamp(2.5rem, 4vw, 3.5rem); padding-bottom: clamp(2.5rem, 4vw, 3.5rem);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 1.5rem;
  border-top: var(--mk-hair-ink);
  border-bottom: var(--mk-hair-ink);
}
.mk-midcta h2 { color: var(--clr-paper); font-size: var(--t-h2); line-height: 1.05; letter-spacing: -0.005em; margin: 0; max-width: 22ch; }
.mk-midcta p { color: var(--mk-paper-text); margin: .4rem 0 0; }

/* ── Try-it (paper) ── */
.mk-build { background: var(--clr-paper); }
.mk-build__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  align-items: start;
}
.mk-refine-tryit {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--ff-display); font-size: var(--t-label); font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase; color: var(--clr-ink-warm);
  border: 1px solid var(--clr-ink-warm);
  padding: .35rem .8rem; border-radius: 999px; margin-top: .5rem;
}
/* The live specimen: white sheet, caption bar on a perforated edge. */
.mk-activity {
  --pad: clamp(1.4rem, 3vw, 2rem);
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 10px;
  overflow: hidden;
  padding: 0 var(--pad) var(--pad);
}
.mk-activity__cap {
  display: block;
  margin: 0 calc(var(--pad) * -1) 1.3rem;
  padding: 0.6rem var(--pad);
  background: var(--clr-paper-2);
  border-bottom: 1px dashed var(--clr-hair-warm);
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mk-activity__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
}
.mk-activity__tag {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  background: var(--clr-paper-2);
  border-radius: 5px;
  padding: 0.28rem 0.6rem;
}
.mk-activity__progress {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
}
.mk-activity__q {
  font-size: var(--t-h3);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.3rem;
}
.mk-activity__hint { font-size: var(--t-small); color: var(--clr-ink-warm-2); margin: 0 0 1.2rem; }
.mk-match {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}
.mk-match__col { display: flex; flex-direction: column; gap: 0.7rem; min-width: 0; }
.mk-match__item {
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: var(--fw-medium);
  line-height: 1.35;
  text-align: left;
  color: var(--clr-ink-warm);
  background: var(--clr-paper);
  border: 1.5px solid var(--clr-hair-warm);
  border-radius: 10px;
  padding: 0.8rem 0.95rem;
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.mk-match__item:hover {
  border-color: var(--clr-ink-warm-2);
  background: var(--clr-white);
}
.mk-match__item.is-selected {
  border-color: var(--clr-ink);
  background: var(--clr-white);
}
/* Matched = green hairline + tick. No fill, no bounce. */
.mk-match__item.is-matched {
  border-color: rgba(10, 122, 63, 0.55);
  background: var(--clr-white);
  color: var(--clr-green);
  cursor: default;
}
.mk-match__item.is-matched::after { content: " ✓"; font-weight: 700; }
@media (prefers-reduced-motion: no-preference) {
  .mk-match__item.is-wrong { animation: mk-shake .3s ease; }
  @keyframes mk-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
  }
}
.mk-match__item.is-wrong { border-color: var(--clr-red); }
.mk-activity__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.2rem;
  min-height: 2rem;
}
.mk-activity__result {
  margin: 0;
  font-size: 0.92rem;
  font-weight: var(--fw-semi-bold);
  color: var(--clr-green);
}
.mk-minibtn--reset {
  font-size: 0.82rem;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  font-family: inherit;
  background: var(--clr-white);
}
.mk-minibtn--reset:hover { background: var(--clr-paper-2); }

.mk-build__side { display: flex; flex-direction: column; gap: 1.5rem; }
.mk-activity-index {
  list-style: none;
  margin: 0;
  padding: 0.4rem 0;
  display: flex;
  flex-direction: column;
}
.mk-activity-index li {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.72rem 0.2rem;
  border-bottom: var(--mk-hair);
  font-size: var(--t-body);
}
.mk-activity-index li:first-child { border-top: var(--mk-hair); }
.mk-activity-index b {
  font-weight: var(--fw-semi-bold);
  color: var(--clr-ink-warm);
}
.mk-activity-index span { color: var(--clr-ink-warm-2); font-size: var(--t-small); }

.mk-scenario {
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.mk-scenario .mk-activity__tag { align-self: flex-start; margin-bottom: 0.5rem; }
.mk-scenario__stem {
  font-size: 0.98rem;
  font-weight: var(--fw-medium);
  color: var(--clr-ink-warm);
  line-height: 1.45;
  margin: 0 0 0.5rem;
}
.mk-scenario__opt {
  font-size: 0.88rem;
  color: var(--clr-ink-warm-2);
  border: 1.5px solid var(--clr-hair-warm);
  border-radius: 10px;
  padding: 0.62rem 0.85rem;
}
.mk-scenario__opt.is-correct {
  border-color: rgba(10, 122, 63, 0.45);
  background: var(--clr-green-soft);
  color: var(--clr-green);
  font-weight: var(--fw-semi-bold);
}
.mk-scenario__opt.is-correct::after { content: " ✓"; font-weight: 700; }
.mk-scenario__why {
  font-size: 0.84rem;
  color: var(--clr-green);
  padding-top: 0.35rem;
}

/* ── Features — the index of running gear (plain paper, no cards) ── */
.mk-features { background: var(--clr-paper); border-top: var(--mk-hair); }
.mk-gearlist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(2.5rem, 5vw, 4.5rem);
  border-bottom: var(--mk-hair);
}
.mk-gear {
  border-top: var(--mk-hair);
  padding: 1.15rem 0.15rem 1.2rem;
  margin: 0;
  min-width: 0;
}
.mk-gear__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.3rem 1.2rem;
  margin-bottom: 0.4rem;
}
.mk-gear h3 {
  font-size: var(--t-h4);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 0;
}
.mk-gear__line {
  font-family: var(--ff-mono);
  font-size: 0.74rem;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  text-align: right;
}
.mk-gear p {
  font-size: var(--t-body);
  color: var(--clr-ink-warm-2);
  margin: 0;
  line-height: 1.55;
  max-width: 52ch;
}

/* ── Compliance wall — the exported register itself, on paper ──
   Folio 05, the centerpiece: a white sheet with a filename tab on a
   perforated edge; the matrix at true register scale (14px cells). */
.mk-wall {
  background: var(--clr-paper);
  padding: var(--mk-section) 0;
  color: var(--clr-ink-warm);
}
.mk-wall__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.mk-wall__lede {
  color: var(--clr-ink-warm-2);
  font-size: var(--t-lede);
  line-height: 1.55;
  max-width: 48ch;
  margin: 0 0 1.4rem;
}
.mk-wall__specs { margin-bottom: 0; }
/* specs bullets read on paper here */
.mk-wall__specs li { color: var(--clr-ink-warm); }
.mk-wall__specs li::before { background: var(--clr-green); }

.mk-wall__viz { margin: 0; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; }
.mk-sheetreg {
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 10px;
  padding: 1rem 1.3rem 1.3rem;
  width: 100%;
  max-width: 100%;
}
/* Sheet body — the matrix left, the register's key on a hairline rail right,
   so the printout composes edge to edge (no empty white field). */
.mk-sheetreg__body {
  display: flex;
  align-items: stretch;
  gap: clamp(1.2rem, 2.5vw, 2rem);
}
.mk-sheetreg__tab {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.2rem 1.5rem;
  padding-bottom: 0.65rem;
  margin-bottom: 1rem;
  border-bottom: 1px dashed var(--clr-hair-warm);
  font-family: var(--ff-mono);
  font-variant-numeric: tabular-nums;
}
.mk-sheetreg__file {
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--clr-ink-warm);
}
.mk-sheetreg__meta {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
}
.mk-wallgrid {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
  justify-content: start;
  gap: 8px;
}
.mk-wallgrid__corner { grid-area: 1 / 1; }
.mk-wallgrid__cols {
  grid-area: 1 / 2;
  display: grid;
  grid-template-columns: repeat(10, 14px);
  gap: 3px;
  align-items: end;
  justify-items: center;
}
.mk-wallgrid__cols span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--ff-mono);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
  color: var(--clr-ink-warm-2);
  line-height: 14px;
}
.mk-wallgrid__rows {
  grid-area: 2 / 1;
  display: grid;
  grid-template-rows: repeat(9, 14px);
  gap: 3px;
  align-items: center;
}
.mk-wallgrid__rows span {
  font-family: var(--ff-mono);
  font-size: 0.6rem;
  color: var(--clr-ink-warm-2);
  text-align: right;
  padding-right: 6px;
  white-space: nowrap;
}
.mk-wallgrid__cells {
  grid-area: 2 / 2;
  display: grid;
  grid-template-columns: repeat(10, 14px);
  grid-auto-rows: 14px;
  gap: 3px;
}
.mk-cell {
  display: block;
  position: relative;
  border-radius: 3px;
  background: var(--clr-paper-2);
}
/* Muted register palette — record state only. */
.mk-cell--g { background: var(--clr-green); }
.mk-cell--b { background: var(--clr-dark-blue); }
.mk-cell--a { background: var(--clr-amber); }
.mk-cell--r { background: var(--clr-red); }
.mk-cell--x {
  background: var(--clr-paper-2);
  box-shadow: inset 0 0 0 1px var(--clr-hair-warm);
}
/* The story cell — amber until the record resolves; one fade, no pulse. */
.mk-cell--story { transition: background-color .6s ease; }
.mk-cell--story.is-resolved { background: var(--clr-green); }
/* Verified-in-practice: ink ring on a paper offset (reads at 14px). */
.mk-cell--v {
  box-shadow:
    0 0 0 1px var(--clr-white),
    0 0 0 2.5px var(--clr-ink);
}
/* Dead-hover fix: each cell names its record on hover/focus. */
.mk-wallgrid__cells .mk-cell[data-tip]:hover::after,
.mk-wallgrid__cells .mk-cell[data-tip]:focus-visible::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-ink);
  color: var(--clr-paper);
  font-family: var(--ff-mono);
  font-size: 10.5px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  padding: 5px 8px;
  border-radius: 6px;
  white-space: nowrap;
  z-index: 6;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.mk-wallgrid__legend {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.65rem;
  margin: 0;
  padding-left: clamp(1.2rem, 2.5vw, 2rem);
  border-left: var(--mk-hair);
  font-size: var(--t-small);
  color: var(--clr-ink-warm-2);
}
.mk-wallgrid__legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.mk-wallgrid__legend .mk-cell { width: 11px; height: 11px; flex-shrink: 0; }
.mk-wallgrid__legend .mk-cell--x { box-shadow: inset 0 0 0 1px rgba(6, 32, 43, 0.3); }
.mk-wallgrid__legend .mk-cell--v {
  box-shadow:
    0 0 0 1px var(--clr-paper),
    0 0 0 2px var(--clr-ink);
}

.mk-wall__trail {
  margin-top: clamp(2rem, 4vw, 3rem);
  border-top: var(--mk-hair);
  display: flex;
  flex-direction: column;
}
.mk-trail__row {
  font-family: var(--ff-mono);
  font-size: 0.76rem;
  color: var(--clr-ink-warm-2);
  padding: 0.7rem 0.2rem;
  border-bottom: var(--mk-hair);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.mk-trail__row b { color: var(--clr-ink-warm); font-weight: 500; }

/* ── Use cases — four file folders ── */
.mk-cases { background: var(--clr-paper); }
.mk-cases__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem;
  align-items: stretch;
}
.mk-case {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
/* Folder tab: paper-2, Schibsted caps label (UI voice, not mono). */
.mk-case__tab {
  align-self: flex-start;
  font-family: var(--ff-display);
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--clr-ink-warm);
  background: var(--clr-paper-2);
  border: var(--mk-hair);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  padding: 0.5rem 0.85rem 0.55rem;
  margin: 0;
}
.mk-case__body {
  flex: 1;
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 0 10px 10px 10px;
  padding: 1.25rem 1.3rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.mk-case__body > p { font-size: var(--t-body); color: var(--clr-ink-warm-2); margin: 0; line-height: 1.55; }
.mk-case__chips {
  list-style: none;
  margin: 0.2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.mk-case__chips li {
  font-size: var(--t-small);
  font-weight: var(--fw-medium);
  color: var(--clr-ink-warm-2);
  border: var(--mk-hair);
  border-radius: 999px;
  padding: 0.24rem 0.65rem;
}
.mk-case__proof {
  margin: auto 0 0 !important;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--clr-hair-warm);
  font-size: var(--t-small) !important;
  color: var(--clr-ink-warm-2) !important;
}

/* ── Live demos (Ink Plate II) ── */
.mk-demos {
  background: var(--clr-ink);
  padding: var(--mk-section) 0;
  color: var(--clr-paper);
}
.mk-demos__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}
/* Tenant-record cards: cream plates tipped into the ink. */
.mk-demo {
  display: flex;
  flex-direction: column;
  background: var(--clr-paper);
  border-radius: 10px;
  padding: 1.35rem 1.5rem 1.4rem;
  color: var(--clr-ink-warm);
}
.mk-demo__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  border-bottom: var(--mk-hair);
  padding-bottom: 0.65rem;
  margin-bottom: 0.9rem;
}
.mk-demo__serial {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
/* Index-tab tints (industry hues kept as the record's tab colour) */
.mk-demo__dot {
  width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0;
}
.mk-demo__dot--hc { background: var(--clr-green); }
.mk-demo__dot--hos { background: var(--clr-amber); }
.mk-demo__dot--ret { background: var(--clr-dark-blue); }
.mk-demo__dot--prof { background: #6C5CE7; }
.mk-demo__org {
  font-family: var(--ff-display);
  font-size: var(--t-h4);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--clr-ink-warm);
  margin: 0 0 0.45rem;
  line-height: 1.3;
}
.mk-demo__desc {
  font-size: var(--t-body);
  line-height: 1.55;
  color: var(--clr-ink-warm-2);
  margin: 0 0 0.9rem;
}
.mk-demo__stats {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
  margin: 0 0 1.2rem;
}
.mk-demo__actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
.mk-demo__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: var(--fw-semi-bold);
  min-height: 44px;
  padding: 0.7rem 0.5rem;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid rgba(0, 26, 45, 0.35);
  background: transparent;
  color: var(--clr-ink);
  transition: background .15s ease, border-color .15s ease;
}
.mk-demo__btn:hover { background: rgba(0, 26, 45, 0.06); border-color: var(--clr-ink); }
.mk-demo__btn--admin {
  background: var(--clr-ink);
  color: var(--clr-paper);
  border-color: var(--clr-ink);
}
.mk-demo__btn--admin:hover { background: var(--clr-ink-2); color: var(--clr-paper); }
.mk-demo__btn .arrow { transition: transform .15s ease; }
.mk-demo__btn:hover .arrow { transform: translateX(3px); }
.mk-demos__foot {
  margin: 1.6rem 0 0;
  font-size: var(--t-small);
  color: var(--mk-paper-dim);
  text-align: center;
}
.mk-demos__foot code {
  font-family: var(--ff-mono);
  font-size: 0.85em;
  color: var(--st-green-bright);
  background: rgba(47, 191, 113, 0.12);
  border-radius: 5px;
  padding: 0.12rem 0.45rem;
}

/* ── Versus — the audit memo ── */
.mk-versus { background: var(--clr-paper); border-top: var(--mk-hair); }
.mk-memo {
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 10px;
  overflow: hidden;
}
.mk-memo__head {
  margin: 0;
  padding: 0.9rem 1.5rem;
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm);
  border-bottom: 1px dashed var(--clr-hair-warm);
}
.mk-versus__table { background: transparent; }
.mk-versus__hrow,
.mk-versus__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.mk-versus__hrow span {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  padding: 0.9rem 1.5rem 0.7rem;
  border-bottom: var(--mk-hair);
  display: flex;
  align-items: center;
}
/* Cohort column header — a small ink stamp, not a band. */
.mk-versus__stamp {
  display: inline-block;
  font-family: var(--ff-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-paper);
  background: var(--clr-ink);
  border-radius: 6px;
  padding: 0.28rem 0.65rem;
  line-height: 1.2;
}
.mk-versus__row span {
  padding: 1rem 1.5rem;
  border-bottom: var(--mk-hair);
}
.mk-versus__row:last-child span { border-bottom: 0; }
/* The inherited line-item: retired in the record's own hand. */
.mk-versus__row span:first-child {
  font-family: var(--ff-mono);
  font-size: var(--t-small);
  line-height: 1.5;
  color: var(--clr-ink-warm-2);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
  text-decoration-color: rgba(6, 32, 43, 0.5);
}
.mk-versus__row span:last-child {
  font-size: var(--t-body);
  color: var(--clr-ink-warm);
  font-weight: 600;
}

/* ── Pricing + founder — the engagement docket + the founder's seal ── */
.mk-refine-band {
  background: var(--clr-paper);
  border-top: var(--mk-hair);
}
.mk-refine-band .container {
  padding-top: clamp(3rem, 5vw, 4rem); padding-bottom: clamp(3rem, 5vw, 4rem);
}
.mk-docket {
  background: var(--clr-white);
  border: var(--mk-hair);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 1.5rem;
}
.mk-docket__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.mk-docket__col { padding: 1.4rem 1.5rem 1.5rem; min-width: 0; }
.mk-docket__col + .mk-docket__col { border-left: var(--mk-hair); }
.mk-docket__col h3 {
  font-size: var(--t-h4);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 0 0 0.35rem;
}
.mk-docket__col p { color: var(--clr-ink-warm-2); font-size: var(--t-body); margin: 0; line-height: 1.55; }
.mk-docket__foot {
  margin: 0;
  padding: 0.8rem 1.5rem;
  border-top: var(--mk-hair);
  font-family: var(--ff-mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  font-variant-numeric: tabular-nums;
}
.mk-price__note { color: var(--clr-ink-warm-2); font-size: var(--t-small); margin-top: 1rem; }

.mk-founder {
  max-width: 720px;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}
.mk-founder blockquote {
  margin: 0; font-size: 1.35rem; line-height: 1.5;
  font-family: var(--ff-serif); font-style: italic; font-weight: 560;
  color: var(--clr-ink-warm); text-wrap: pretty;
}
.mk-founder cite { display: block; margin-top: .6rem; font-style: normal; color: var(--clr-ink-warm-2); font-size: var(--t-small); }
.mk-founder__sign {
  display: block; font-family: var(--ff-hand); font-weight: 600;
  font-size: 2.6rem; line-height: 1; color: var(--clr-ink-warm);
  margin: 1rem 0 0.2rem; transform: rotate(-3deg); transform-origin: left;
}
.mk-founder__seal {
  margin-top: 1.4rem;
  /* hand-broken three-line stamp: sized so the longest line sits on the
     circle's equator without ragged auto-wrap */
  width: 6.4rem; height: 6.4rem;
  font-size: 0.5rem;
  line-height: 1.55;
  padding: 0.5rem;
}

/* ── Final CTA — the back cover, sealed ── */
.mk .section--cta {
  background: var(--clr-ink);
  padding: var(--mk-section) 0;
}
.section--cta .mk-eyebrow { margin-bottom: clamp(2rem, 4vw, 3rem); }
.mk-cta__micro {
  font-size: var(--t-label) !important;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mk-paper-dim) !important;
  margin-top: 1.1rem !important;
}
/* The booking stub: a cream ticket with a perforated left edge. */
.mk-cta__stub {
  position: relative;
  flex: 0 1 360px;
  min-width: min(300px, 100%);
  background: var(--clr-paper);
  border-radius: 10px;
  padding: 1.4rem 1.5rem 1.5rem 2.2rem;
}
.mk-cta__stub::before {
  content: "";
  position: absolute;
  left: 0.95rem; top: 0.9rem; bottom: 0.9rem;
  border-left: 1px dashed rgba(0, 26, 45, 0.4);
}
.mk-cta__stub-label {
  display: block;
  font-family: var(--ff-display);
  font-size: var(--t-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-ink-warm-2);
  margin-bottom: 0.9rem;
}
.mk-cta__actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.7rem;
}
.mk-cta__actions .btn { justify-content: center; }
.mk-cta__sealrow {
  display: flex;
  justify-content: flex-end;
  margin-top: clamp(2rem, 4vw, 3rem);
}
.mk .footer { border-top: var(--mk-hair); }
.mk .footer__bottom { font-family: var(--ff-mono); font-size: 0.76rem; }
/* §3.5 colour law: dark-blue retired as decoration — links are ink on paper
   (footer columns, footer bottom, pricing note). */
.mk .footer a,
.mk .mk-price__note a {
  color: var(--clr-ink-warm);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  text-decoration-color: rgba(0, 26, 45, 0.35);
}
.mk .footer a:hover,
.mk .mk-price__note a:hover { text-decoration-color: currentColor; }
.mk .footer h4 { color: var(--clr-ink-warm-2); letter-spacing: 0.08em; }

/* ══ 10. RESPONSIVE ═════════════════════════════════════════ */
@media (max-width: 1099px) {
  .mk-problem__layout { grid-template-columns: 1fr; }
}

@media (max-width: 1080px) {
  .mk-cases__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 980px) {
  .rc-hero__grid { grid-template-columns: 1fr; gap: 3rem; }
  .rc-stage { order: 2; }
  .mk-flag__inner { grid-template-columns: 1fr; }
  .mk-tour__card { grid-template-columns: 1fr; gap: 1.75rem; }
  .mk-proof__grid { grid-template-columns: 1fr; }
  .mk-wall__grid { grid-template-columns: 1fr; }
  .mk-build__grid { grid-template-columns: 1fr; }
  .mk-gearlist { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .mk-docket__cols { grid-template-columns: 1fr; }
  .mk-docket__col + .mk-docket__col { border-left: 0; border-top: var(--mk-hair); }
}

@media (max-width: 820px) {
  .mk-demos__grid { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  .mk-proof__loop { flex-direction: column; align-items: center; gap: 0.5rem; }
  .mk-proof__loop li + li { margin-left: 0; }
  .mk-proof__loop li + li::before { display: none; }
}

@media (max-width: 640px) {
  .mk-masthead { flex-direction: column; gap: 0.2rem; }
  .mk-masthead > span:last-child { display: none; }
  .mk-eyebrow > span:last-child:not(:only-child) { display: none; }
  .mk-problem__grid { grid-template-columns: 1fr; }
  .mk-cases__grid { grid-template-columns: 1fr; }
  .mk-match { grid-template-columns: 1fr; }
  .mk-activity-index li { grid-template-columns: 1fr; gap: 0.15rem; }
  .mk-versus__hrow { display: none; }
  .mk-versus__row { grid-template-columns: 1fr; }
  .mk-versus__row span:first-child { border-bottom: 0; padding-bottom: 0.2rem; }
  .mk-versus__row span:last-child { padding-top: 0; }
  .mk-dash__side { display: none; }
  .mk-builder__outline { flex-basis: 116px; }
  .mk-wallgrid__rows span { font-size: 0.55rem; }
  .mk-sheetreg { padding: 0.9rem 1rem 1rem; }
  .mk-sheetreg__body { flex-direction: column; align-items: flex-start; gap: 0; }
  .mk-wallgrid__legend {
    flex: none;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem 1.2rem;
    margin-top: 1rem;
    padding: 0.8rem 0 0;
    border-left: 0;
    border-top: 1px dashed var(--clr-hair-warm);
  }
  .mk-problem__punch { font-size: 1.35rem; }
  .mk-midcta .container { flex-direction: column; align-items: flex-start; }
  .mk-gear__head { flex-direction: column; align-items: flex-start; }
  .mk-gear__line { text-align: left; }
}

@media (max-width: 420px) {
  .mk-demo__actions { grid-template-columns: 1fr; }
}