/* ── methodology page (extends v3.css) ────────── */

.method-canvas {
  display: grid;
  gap: 44px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 4px;
}

.method-hero {
  gap: 18px;
  padding: 18px 0 8px;
}

.method-hero .hero-title {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.05;
  max-width: 820px;
}

.method-lede {
  max-width: 820px;
  color: var(--ink-2);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.6;
}

.method-lede.subtle { color: var(--muted); font-size: 14.5px; }

/* sport row chips */

.sport-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.sport-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.sport-chip .sport-tab-logo { height: 16px; width: auto; flex-shrink: 0; }

/* ── pipeline diagram ─────────────────────────── */

.pipeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: stretch;
}

@media (min-width: 980px) {
  .pipeline {
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 12px;
    align-items: stretch;
  }
}

.pipeline-step {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  background: var(--surface);
}

.pipeline-step strong {
  display: block;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-top: 4px;
}

.pipeline-step p {
  margin: 0;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.55;
}

.pipeline-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.pipeline-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
}

@media (max-width: 979px) {
  .pipeline-arrow {
    transform: rotate(90deg);
    justify-self: center;
    height: 14px;
  }
}

/* ── commitments ──────────────────────────────── */

.commit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 760px) {
  .commit-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.commit-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}

.commit-card strong {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--ink);
}

.commit-card p {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.commit-card .card-label {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ── lede paragraphs ──────────────────────────── */

.lede-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .lede-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

.lede-grid p,
.method-paragraph {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.65;
}

.method-paragraph + .method-paragraph { margin-top: 14px; }
.method-paragraph.subtle { color: var(--muted); font-size: 14px; }

/* ── lists ────────────────────────────────────── */

.method-list {
  margin: 0;
  padding-left: 1.1em;
  display: grid;
  gap: 10px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.6;
}

.method-list li::marker { color: var(--accent-deep); }
.method-list strong { color: var(--ink); font-weight: 600; }

.invariant-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.invariant-list li {
  position: relative;
  padding: 14px 16px 14px 36px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--ink-2);
  font-size: 14px;
  line-height: 1.55;
}

.invariant-list li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  top: 14px;
  width: 14px;
  height: 14px;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--positive);
}

.invariant-list strong { color: var(--ink); font-weight: 600; }

/* ── histograms (convergence chart) ───────────── */

.hist-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin: 8px 0 4px;
}

@media (min-width: 800px) {
  .hist-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.hist-card {
  margin: 0;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}

.hist-tag {
  align-self: start;
  display: inline-flex;
  height: 22px;
  padding: 0 10px;
  align-items: center;
  border-radius: 999px;
  background: var(--negative-soft);
  color: var(--negative);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
}

.hist-tag-warn { background: var(--warn-soft); color: var(--warn); }
.hist-tag-good { background: var(--positive-soft); color: var(--positive); }

.hist-svg { display: block; width: 100%; height: auto; }

.hist-card figcaption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

/* ── tolerance dashboard ──────────────────────── */

.tolerance-board {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  padding: 6px;
}

.tol-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(120px, 1fr) 64px;
  align-items: center;
  gap: 14px;
  padding: 14px 14px;
  border-radius: var(--r-sm);
}

.tol-row + .tol-row { border-top: 1px solid var(--line-soft); }

.tol-label { display: grid; gap: 3px; }

.tol-label strong { color: var(--ink); font-weight: 600; font-size: 14px; }

.tol-label span {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.tol-bar {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: var(--surface-3);
  overflow: hidden;
}

.tol-fill {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: 999px;
  background: var(--positive);
}

.tol-fill.tol-good { background: var(--positive); }
.tol-fill.tol-warn { background: var(--warn); }
.tol-fill.tol-loose { background: var(--negative); }

.tol-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  text-align: right;
  color: var(--ink);
}

@media (max-width: 720px) {
  .tol-row {
    grid-template-columns: 1fr 60px;
    grid-template-areas:
      "label value"
      "bar bar";
    gap: 10px 12px;
  }
  .tol-label { grid-area: label; }
  .tol-value { grid-area: value; }
  .tol-bar { grid-area: bar; }
}

/* ── calibration scatter ──────────────────────── */

.calib-wrap {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 880px) {
  .calib-wrap { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 36px; }
}

.calib-figure {
  margin: 0;
  display: grid;
  gap: 12px;
}

.scatter-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
  display: block;
}

.scatter-svg .scatter-axis {
  font-family: var(--font-mono);
}

.scatter-svg .scatter-axislabel {
  font-family: var(--font-sans);
  font-weight: 500;
}

.calib-figure figcaption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  max-width: 460px;
}

.calib-side { display: grid; gap: 18px; }

/* ── stat strip (3-cell metric tiles) ─────────── */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
}

.stat-cell {
  display: grid;
  gap: 4px;
  padding: 16px 14px;
  text-align: left;
}

.stat-cell + .stat-cell { border-left: 1px solid var(--line-soft); }

.stat-label {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stat-value {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 26px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.stat-foot {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

/* ── gap signal bands ─────────────────────────── */

.gap-bands {
  display: grid;
  gap: 8px;
  margin: 6px 0 14px;
}

.gap-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  height: 52px;
  border-radius: var(--r-sm);
  overflow: hidden;
  border: 1px solid var(--line);
}

.gap-zone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
}

.gap-zone-neg  { background: #b03d2c; }
.gap-zone-warn { background: #d2a03b; color: #2a2210; }
.gap-zone-mid  { background: #2c6a4a; }
.gap-zone-pos  { background: #3c8b65; }

.gap-bar-axis {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}

.gap-bar-axis-3 {
  grid-template-columns: repeat(3, 1fr);
  font-size: 12px;
  margin-top: 8px;
  padding: 0 4px;
}

.gap-bar-axis-3 span {
  text-align: center;
  line-height: 1.45;
  padding: 0 6px;
}

.gap-bar-axis span:nth-child(1) { text-align: left; }
.gap-bar-axis span:nth-child(7) { text-align: right; }
.gap-bar-axis span { text-align: center; }

/* ── per-sport stage cards ────────────────────── */

.sport-stack {
  display: grid;
  gap: 16px;
}

.sport-card {
  display: grid;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}

.sport-card-head {
  display: grid;
  gap: 10px;
}

.sport-card-head h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.stage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.stage-list li {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: var(--surface-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
}

.stage-list p {
  margin: 0;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.55;
}

.stage-tag {
  display: inline-flex;
  align-self: start;
  align-items: center;
  height: 22px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ── freshness strip ──────────────────────────── */

.freshness-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
  margin-top: 8px;
}

@media (min-width: 720px) {
  .freshness-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.freshness-cell {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
}

@media (min-width: 720px) {
  .freshness-cell + .freshness-cell { border-left: 1px solid var(--line-soft); }
}

@media (max-width: 719px) {
  .freshness-cell + .freshness-cell { border-top: 1px solid var(--line-soft); }
}

.freshness-label {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.freshness-value {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.freshness-foot {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.4;
}

/* ── bottom-line tone ─────────────────────────── */

.bottom-line {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  margin-top: 8px;
}

.bottom-line .block-head { border-bottom: 0; padding-bottom: 4px; }

/* ── methodology shell tweaks ─────────────────── */

.methodology .canvas { padding-top: 8px; }

@media (max-width: 720px) {
  .method-canvas { gap: 28px; }
  .method-hero .hero-title { font-size: clamp(28px, 7vw, 38px); }
  .sport-card { padding: 18px; }
  .stage-list li { padding: 12px 14px; }
  .pipeline-step { padding: 16px; }
  .stat-cell { padding: 14px 12px; }
  .stat-value { font-size: 22px; }
}

/* ── ladder → distribution graphic ─────────────── */

.ladder-wrap {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
  align-items: center;
  margin-top: 6px;
}

@media (min-width: 900px) {
  .ladder-wrap { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 36px; }
}

.ladder-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.ladder-svg {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  padding: 14px 8px 8px;
}

.ladder-figure figcaption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.ladder-side { display: grid; gap: 12px; }

/* ── convergence chart strip ───────────────────── */

.convergence-strip {
  margin-top: 6px;
}

.convergence-figure {
  margin: 0;
  display: grid;
  gap: 10px;
  padding: 16px 18px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}

.convergence-svg {
  display: block;
  width: 100%;
  height: auto;
}

.convergence-caption {
  display: grid;
  gap: 2px;
}

.convergence-caption strong {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.convergence-caption span {
  color: var(--muted);
  font-size: 12.5px;
}

/* ── coverage matrix ──────────────────────────── */

.coverage-matrix {
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
  overflow: hidden;
  margin-top: 4px;
}

.coverage-head,
.coverage-row {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.1fr 1.4fr 1.3fr 0.7fr;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  font-size: 12.5px;
}

.coverage-head {
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 10.5px;
}

.coverage-row + .coverage-row,
.coverage-row:first-of-type {
  border-top: 1px solid var(--line-soft);
}

.coverage-sport {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink);
  font-size: 14px;
}

.sport-glyph {
  display: inline-flex;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.coverage-cell {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
  line-height: 1.45;
}

.coverage-cell .dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  flex-shrink: 0;
}

.dot-good { background: var(--positive); }

.coverage-status {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-align: right;
  padding: 4px 8px;
  border-radius: 4px;
  justify-self: end;
}

.status-live {
  background: var(--positive-soft);
  color: var(--positive);
}

.status-off {
  background: var(--surface-3);
  color: var(--muted);
}

.coverage-row-off { opacity: 0.7; }

@media (max-width: 880px) {
  .coverage-head { display: none; }
  .coverage-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 14px 16px;
  }
  .coverage-cell::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    margin-right: 6px;
  }
  .coverage-status { justify-self: start; }
}

/* ── sport pillars (visual stage strip) ────────── */

.sport-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

@media (min-width: 760px) {
  .sport-pillars { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.pillar-card {
  display: grid;
  gap: 8px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.pillar-tag {
  align-self: start;
  display: inline-flex;
  height: 22px;
  padding: 0 10px;
  align-items: center;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.pillar-svg {
  display: block;
  width: 100%;
  height: auto;
  margin: 4px 0;
}

.pillar-card strong {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.25;
}

.pillar-card p {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

/* ── balance grid (internal consistency) ──────── */

.balance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 4px;
}

@media (min-width: 820px) {
  .balance-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.balance-card {
  display: grid;
  gap: 10px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.balance-svg {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 2px;
}

.balance-card strong {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.balance-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

/* ── Dashboard button (mirrors index.html's primary CTA) ──
   Solid-black primary CTA that appears in place of the Login
   button once a Clerk session is active. Visually matches the
   .btn-dashboard in home.css; sized at 32px to align with the
   v3.css .btn-login already living on this page. */

.btn-dashboard {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--ink, #0c0c0e);
  border-radius: var(--r-sm);
  background: var(--ink, #0c0c0e);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.2s ease;
}

.btn-dashboard:hover,
.btn-dashboard:focus-visible {
  background: #000;
  border-color: #000;
  color: #fff;
  box-shadow: 0 6px 18px -10px rgba(0, 0, 0, 0.45);
}

/* ── tier compare (Free vs Pro) ────────────────── */

.tier-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

@media (min-width: 720px) {
  .tier-compare { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.tier-compare-card {
  display: grid;
  gap: 10px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--surface);
}

.tier-compare-card-pro {
  border-color: var(--accent-deep);
  background: linear-gradient(180deg, var(--surface) 0%, var(--accent-soft) 240%);
}

.tier-compare-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.tier-compare-tag {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tier-compare-tag-free {
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--line);
}

.tier-compare-tag-pro {
  background: var(--accent);
  color: var(--surface);
}

.tier-compare-value {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 28px;
  letter-spacing: -0.015em;
  color: var(--ink);
  line-height: 1;
}

.tier-compare-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-left: 2px;
}

.tier-compare-copy {
  margin: 0;
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.55;
}

.tier-compare-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.tier-compare-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
  font-size: 13px;
}

.tier-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  flex-shrink: 0;
}

.tier-dot-good { background: var(--positive); }
.tier-dot-warn { background: var(--warn); }

/* ── CTA block ───────────────────────────────── */

.cta-block {
  text-align: center;
  display: grid;
  gap: 14px;
  padding: 36px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
}

.cta-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(28px, 4.4vw, 42px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  color: var(--ink);
}

.cta-copy {
  margin: 0 auto;
  max-width: 560px;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.6;
}

.cta-row {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 6px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 22px;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease;
  min-width: 48px;
  min-height: 48px;
}

.cta-btn-primary {
  background: var(--accent);
  color: var(--surface);
  border: 1px solid var(--accent-deep);
}

.cta-btn-primary:hover { transform: translateY(-1px); background: var(--accent-deep); }

.cta-btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border: 1px solid var(--line);
}

.cta-btn-ghost:hover { color: var(--ink); border-color: var(--ink-2); }

.cta-arrow { font-family: var(--font-mono); font-size: 16px; }

/* ── FAQ block ───────────────────────────────── */

.faq-list {
  display: grid;
  gap: 8px;
  margin-top: 4px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--surface);
  padding: 0;
  overflow: hidden;
}

.faq-item[open] { border-color: var(--accent); }

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 44px 16px 18px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 16.5px;
  letter-spacing: -0.005em;
  color: var(--ink);
  line-height: 1.35;
  position: relative;
  min-height: 48px;
  display: flex;
  align-items: center;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  line-height: 1;
  transition: transform 0.18s ease;
}

.faq-item[open] summary::after { content: "−"; transform: translateY(-50%) rotate(180deg); }

.faq-item p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.65;
}

/* ── footer ──────────────────────────────────── */

.method-foot {
  margin-top: 12px;
  padding: 22px 4px 36px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
  text-align: center;
}

.method-foot nav {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
}

.method-foot nav span { color: var(--muted); }

.foot-fine {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}

/* ── mobile-first refinements ─────────────────── */

@media (max-width: 720px) {
  .method-canvas { padding: 0 12px; gap: 32px; }
  .method-hero { padding: 8px 0 4px; }
  .method-hero .hero-title { font-size: clamp(26px, 8vw, 36px); }
  .method-lede { font-size: 14.5px; }
  .method-lede.subtle { font-size: 13.5px; }

  .sport-row { gap: 6px; }
  .sport-chip { height: 28px; padding: 0 12px; font-size: 11px; }

  .pipeline-step { padding: 14px; }
  .pipeline-step strong { font-size: 16px; }
  .pipeline-step p { font-size: 13px; }

  .commit-card { padding: 18px; }
  .commit-card strong { font-size: 19px; }

  .tol-row { padding: 12px 12px; }
  .tol-label strong { font-size: 13px; }
  .tol-label span { font-size: 12px; }

  .calib-figure figcaption { font-size: 12.5px; }

  .gap-zone { font-size: 9.5px; padding: 0 2px; text-align: center; line-height: 1.1; }
  .gap-bar-axis { font-size: 9.5px; }

  .ladder-svg { padding: 10px 4px 4px; }
  .convergence-figure { padding: 14px 12px; }
  .convergence-caption strong { font-size: 15px; }
  .convergence-caption span { font-size: 11.5px; }

  .pillar-card { padding: 14px; }
  .pillar-card strong { font-size: 14.5px; }
  .pillar-card p { font-size: 12px; }

  .balance-card { padding: 16px; }
  .balance-card strong { font-size: 16px; }
  .balance-card p { font-size: 12.5px; }

  .cta-block { padding: 28px 18px; }
  .cta-btn { width: 100%; justify-content: center; }
  .cta-row { width: 100%; flex-direction: column; }

  .faq-item summary { font-size: 15px; padding: 14px 44px 14px 16px; }
  .faq-item p { font-size: 13.5px; padding: 0 16px 16px; }
}

@media (max-width: 880px) {
  .coverage-cell::before {
    content: attr(data-label);
    display: inline-block;
    min-width: 78px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    margin-right: 8px;
    font-weight: 700;
  }
  .coverage-status::before {
    content: attr(data-label);
    display: inline-block;
    min-width: 78px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    margin-right: 8px;
    font-weight: 700;
  }
  .coverage-row { padding: 14px 16px; }
  .coverage-row + .coverage-row { border-top: 1px solid var(--line); }
  .coverage-sport { padding-bottom: 4px; border-bottom: 1px dashed var(--line-soft); margin-bottom: 4px; }
}

@media (max-width: 480px) {
  .method-canvas { padding: 0 10px; }
  .method-hero .hero-title { font-size: clamp(24px, 9vw, 32px); }
  .block-head h2 { font-size: clamp(20px, 5.5vw, 26px); }
  .block-note { font-size: 11.5px; }
  .stat-value { font-size: 20px; }
  .freshness-value { font-size: 18px; }
  .hist-card { padding: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .cta-btn,
  .faq-item summary::after {
    transition: none;
  }
  .cta-btn-primary:hover { transform: none; }
}