html,
body,
.playbook-page {
  overflow-x: hidden;
}

body.playbook-page {
  height: 100vh;
  overflow: hidden;
}

.playbook-header-shell {
  padding-bottom: 0;
}

.playbook-shell {
  --playbook-stage-height: auto;
  --playbook-page-gutter: clamp(80px, 6vw, 160px);
  --playbook-hero-max: 1700px;
  --playbook-stage-max: 2160px;
  width: min(calc(100vw - var(--playbook-page-gutter)), var(--playbook-stage-max));
  max-width: none;
  min-height: 0;
  max-height: none;
  padding-top: 8px;
  padding-bottom: 14px;
}

.playbook-page {
  overflow: hidden;
}

.playbook-header {
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 24px;
  padding: 12px 14px 12px 16px;
}

.playbook-header .primary-nav a:nth-child(2) {
  color: var(--accent);
}

.playbook-main {
  height: calc(100vh - 104px);
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
  padding-top: 8px;
  overflow: hidden;
}

.playbook-hero {
  width: min(100%, var(--playbook-hero-max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(520px, 1fr);
  gap: clamp(28px, 3vw, 56px);
  align-items: center;
  min-height: 88px;
  padding: 0 0 4px;
}

.playbook-hero h1 {
  max-width: 34ch;
  font-size: clamp(1.5rem, 1.75vw, 2.18rem);
  line-height: 0.94;
}

.playbook-hero-copy {
  display: grid;
  gap: 5px;
  align-self: center;
  padding-bottom: 0;
}

.playbook-hero-copy .lead {
  margin: 0;
  max-width: 74ch;
  font-size: 0.82rem;
  line-height: 1.35;
}

.playbook-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.62rem;
  line-height: 1.28;
}

.playbook-hero-title {
  align-self: center;
  justify-self: end;
}

.playbook-stage {
  width: min(100%, var(--playbook-stage-max));
  margin: 0 auto;
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 0;
  gap: 10px;
}

.method-selector-wrap {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
}

.method-selector {
  flex: 0 1 auto;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 2px;
  scroll-snap-type: x proximity;
}

.method-selector::-webkit-scrollbar {
  display: none;
}

.method-tab,
.method-arrow {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--heading);
  cursor: pointer;
  transition: transform 160ms ease, color 160ms ease, border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.method-tab {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
  scroll-snap-align: center;
}

.method-tab:hover,
.method-tab:focus-visible,
.method-tab.is-active {
  color: var(--accent);
  border-color: rgba(55, 84, 237, 0.36);
  background: rgba(55, 84, 237, 0.07);
}

.method-tab.is-active {
  box-shadow: inset 0 0 0 1px rgba(55, 84, 237, 0.08);
}

.method-arrow {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  font-size: 1.7rem;
  line-height: 1;
}

.method-arrow:hover,
.method-arrow:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(55, 84, 237, 0.36);
  color: var(--accent);
}

.method-carousel-wrap {
  position: relative;
  height: clamp(470px, calc(100vh - 292px), 610px);
  min-height: 0;
  max-height: none;
  overflow: hidden;
  border-radius: 22px;
}

.method-carousel {
  position: relative;
  height: 100%;
  overflow: hidden;
  border-radius: 22px;
}

.method-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(0) scale(0.992);
  transition: opacity 280ms ease, transform 320ms cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 320ms;
  pointer-events: none;
  overflow: hidden;
  border-radius: 22px;
}

.method-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
  transition-delay: 0s;
  pointer-events: auto;
}

.method-slide.is-active .method-slide-inner {
  animation: slide-soft-in 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes slide-soft-in {
  from {
    opacity: 0.86;
    transform: translateX(10px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.method-slide.has-hint .method-slide-inner {
  animation: first-slide-hint 820ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes first-slide-hint {
  0%,
  100% {
    transform: translateX(0);
  }

  35% {
    transform: translateX(-10px);
  }

  70% {
    transform: translateX(4px);
  }
}

.method-slide-inner {
  height: 100%;
  max-height: 100%;
  overflow: hidden;
  clip-path: inset(0 round 22px);
  display: grid;
  grid-template-columns: minmax(620px, 1.05fr) minmax(520px, 0.95fr);
  grid-template-areas:
    "left visual"
    "copy copy";
  grid-template-rows: minmax(320px, 1fr) auto;
  align-content: start;
  column-gap: 12px;
  row-gap: 6px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 253, 255, 0.92));
  box-shadow: var(--shadow-soft);
}

.method-left-stack {
  grid-area: left;
  align-self: stretch;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(48px, 1fr) auto;
  row-gap: 9px;
}

.method-question-marquee {
  grid-area: auto;
  min-width: 0;
  align-self: center;
  position: relative;
  z-index: 1;
  margin: 0 12px;
  overflow: hidden;
  border-radius: 999px;
  border: 1px solid rgba(55, 84, 237, 0.12);
  background: rgba(55, 84, 237, 0.045);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  display: none;
}

.method-question-track {
  width: max-content;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 3px 0;
  color: var(--heading);
  font-size: 0.66rem;
  font-weight: 600;
  white-space: nowrap;
  animation: question-marquee 34s linear infinite;
}

.method-question-track span {
  display: inline-flex;
  align-items: center;
  gap: 22px;
}

.method-question-track span::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: rgba(55, 84, 237, 0.5);
}

@keyframes question-marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

.method-head {
  grid-area: auto;
  align-self: start;
  padding: 4px 4px 0 0;
  min-width: 0;
}

.method-head-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin: 0 0 5px;
}

.method-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}

.method-type-badges {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.method-type-badge {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.56rem;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.method-type-qual {
  color: #0f6f66;
  border-color: rgba(15, 111, 102, 0.22);
  background: rgba(15, 111, 102, 0.08);
}

.method-type-quant {
  color: var(--accent);
  border-color: rgba(55, 84, 237, 0.22);
  background: rgba(55, 84, 237, 0.08);
}

.method-type-modeling {
  color: #5a45a4;
  border-color: rgba(90, 69, 164, 0.22);
  background: rgba(90, 69, 164, 0.08);
}

.method-head h2 {
  max-width: 24ch;
  font-size: clamp(1.5rem, 1.75vw, 2.18rem);
  line-height: 0.95;
}

.method-head p {
  margin: 7px 0 0;
  max-width: 68ch;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.36;
}

.identity-card {
  grid-area: auto;
  align-self: end;
  margin-top: 2px;
  display: grid;
  grid-template-rows: auto auto;
  gap: 7px;
  padding: 10px;
  min-width: 0;
  min-height: 0;
  border-radius: 16px;
  border: 1px solid rgba(55, 84, 237, 0.18);
  border-left: 3px solid var(--accent);
  background: rgba(55, 84, 237, 0.055);
}

.identity-question {
  display: grid;
  gap: 5px;
}

.identity-question span,
.identity-item span {
  color: var(--muted);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.identity-question strong {
  max-width: 42ch;
  color: var(--heading);
  font-size: 0.82rem;
  line-height: 1.2;
}

.identity-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-content: start;
  gap: 6px;
  min-height: 0;
}

.identity-item {
  min-width: 0;
  min-height: 50px;
  display: grid;
  align-content: start;
  gap: 5px;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(247, 253, 255, 0.76);
}

.identity-item strong {
  min-width: 0;
  color: var(--text);
  font-size: 0.76rem;
  line-height: 1.24;
  overflow-wrap: anywhere;
}

.identity-rating {
  min-height: 0;
}

.rating-dots {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 18px;
}

.rating-dots span {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid rgba(55, 84, 237, 0.34);
  background: transparent;
}

.rating-dots span.is-filled {
  background: var(--accent);
  border-color: var(--accent);
}

.method-visual-card {
  grid-area: visual;
  align-self: stretch;
  min-height: 0;
  min-width: 0;
  margin: 0;
  position: relative;
  display: block;
  height: 100%;
  max-height: none;
  padding: 0;
  border-radius: 12px;
  border: 0;
  background: transparent;
  overflow: hidden;
}

.signature-visual {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  overflow: hidden;
  transform: none;
}

.signature-visual-image {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  border-radius: 6px;
}

.method-copy-grid {
  grid-area: copy;
  display: grid;
  grid-template-columns: 0.95fr 1.2fr 0.86fr 0.9fr;
  gap: 10px;
  align-self: start;
  align-items: start;
  min-height: 0;
  margin-top: 6px;
}

.method-copy-block {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-strong);
  min-height: 0;
  height: auto;
  overflow: visible;
  scrollbar-width: thin;
}

.method-copy-block::-webkit-scrollbar {
  width: 5px;
}

.method-copy-block::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(19, 27, 98, 0.16);
}

.method-copy-block-wide {
  grid-column: span 1;
}

.method-copy-block h3 {
  margin: 0 0 6px;
  font-size: 0.82rem;
}

.method-copy-block p,
.method-copy-block li {
  color: var(--muted);
  font-size: 0.735rem;
  line-height: 1.3;
}

.method-copy-block p,
.method-copy-block ul,
.method-copy-block ol {
  margin: 0;
}

.method-copy-block ul,
.method-copy-block ol {
  padding-left: 0;
  list-style: none;
}

.method-copy-block li + li {
  margin-top: 4px;
}

.method-copy-block li {
  position: relative;
  padding-left: 12px;
}

.method-copy-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: var(--accent);
}

.method-copy-block ol {
  counter-reset: playbook-step;
}

.method-copy-block ol li {
  counter-increment: playbook-step;
  padding-left: 21px;
}

.method-copy-block ol li::before {
  content: counter(playbook-step);
  top: 0.08em;
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.62rem;
  font-weight: 700;
}

.method-risk {
  border-left: 3px solid rgba(55, 84, 237, 0.42);
}

.playbook-progress {
  position: absolute;
  right: 22px;
  bottom: 8px;
  z-index: 4;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0;
  min-height: 12px;
  max-height: 12px;
  padding-right: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.84rem;
}

.playbook-progress > span {
  display: none;
}

.method-dots {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.method-dots span {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(19, 27, 98, 0.18);
}

.method-dots span.is-active {
  width: 18px;
  background: var(--accent);
}

.visual-axis,
.visual-grid-line,
.visual-link,
.visual-marker,
.visual-arrow-line {
  fill: none;
  vector-effect: non-scaling-stroke;
}

.visual-axis {
  stroke: rgba(19, 27, 98, 0.5);
  stroke-width: 1.4;
}

@media (max-height: 820px) and (min-width: 1181px) {
  .playbook-hero {
    min-height: 76px;
    padding-bottom: 0;
  }

  .playbook-stage {
    gap: 8px;
  }

  .method-slide-inner {
    column-gap: 9px;
    row-gap: 5px;
    padding: 12px;
  }

  .method-carousel-wrap {
    height: clamp(440px, calc(100vh - 286px), 560px);
  }

  .method-head h2 {
    font-size: clamp(1.28rem, 1.72vw, 1.86rem);
  }

  .method-head p {
    font-size: 0.78rem;
  }

  .identity-card {
    padding: 10px;
  }

  .method-visual-card {
    padding: 0;
  }

  .identity-item {
    padding: 7px;
  }

  .method-copy-block {
    padding: 8px 10px;
  }

  .method-copy-block h3 {
    font-size: 0.78rem;
  }

  .method-copy-block p,
  .method-copy-block li {
    font-size: 0.71rem;
  }
}

.visual-grid-line {
  stroke: rgba(19, 27, 98, 0.1);
  stroke-width: 1;
}

.visual-link {
  stroke: rgba(19, 27, 98, 0.24);
  stroke-width: 1.25;
  stroke-dasharray: 5 7;
}

.visual-link-strong,
.visual-curve-strong {
  stroke: var(--accent);
}

.visual-curve {
  fill: none;
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
}

.brand-line-1 {
  stroke: var(--accent);
}

.brand-line-2 {
  stroke: rgba(19, 27, 98, 0.48);
}

.brand-line-3 {
  stroke: rgba(55, 84, 237, 0.28);
}

.visual-line-demand,
.visual-line-kpi,
.visual-line-route-b {
  stroke: var(--accent);
}

.visual-line-value,
.visual-line-route-a {
  stroke: rgba(19, 27, 98, 0.52);
}

.visual-line-margin {
  stroke: rgba(142, 162, 245, 0.68);
}

.visual-line-muted-1 {
  stroke: rgba(19, 27, 98, 0.4);
}

.visual-line-muted-2 {
  stroke: rgba(142, 162, 245, 0.56);
}

.visual-line-benchmark {
  stroke: rgba(19, 27, 98, 0.26);
  stroke-dasharray: 5 7;
}

.visual-association-link {
  fill: none;
  stroke: rgba(55, 84, 237, 0.28);
  stroke-width: 1;
  stroke-dasharray: 4 6;
  vector-effect: non-scaling-stroke;
}

.visual-node circle,
.visual-halo,
.cluster,
.journey-dot {
  fill: rgba(55, 84, 237, 0.08);
  stroke: rgba(55, 84, 237, 0.36);
}

.visual-node-accent circle,
.visual-point,
.journey-dot.is-friction {
  fill: var(--accent);
  stroke: var(--accent);
}

.visual-node text {
  text-anchor: middle;
  fill: var(--heading);
  font-size: 12px;
  font-weight: 700;
}

.visual-node-accent text {
  fill: #fff;
}

.visual-label text,
.visual-label-text,
.visual-row-label,
.visual-col-label,
.cluster-label,
.visual-title-left,
.visual-note-text {
  fill: var(--muted);
  font-size: 12px;
  text-anchor: middle;
}

.visual-label-text.strong,
.cluster-label,
.visual-title-left {
  fill: var(--heading);
  font-weight: 700;
}

.visual-title-left {
  font-size: 14px;
}

.visual-note-text {
  font-size: 11px;
}

.visual-text-demand,
.visual-text-kpi {
  fill: var(--accent);
  font-weight: 700;
}

.visual-text-value {
  fill: rgba(19, 27, 98, 0.72);
  font-weight: 700;
}

.visual-text-margin {
  fill: rgba(73, 95, 190, 0.7);
  font-weight: 700;
}

.visual-text-muted {
  fill: rgba(19, 27, 98, 0.52);
}

.visual-align-start {
  text-anchor: start;
}

.visual-align-middle {
  text-anchor: middle;
}

.visual-align-end {
  text-anchor: end;
}

.visual-label-text.vertical {
  transform: rotate(-90deg);
  transform-origin: center;
}

.visual-pill,
.visual-center-card,
.visual-module,
.visual-callout,
.visual-decision-card {
  fill: var(--surface-strong);
  stroke: rgba(55, 84, 237, 0.22);
}

.visual-pill {
  fill: rgba(55, 84, 237, 0.1);
}

.visual-decision-card {
  fill: rgba(55, 84, 237, 0.12);
  stroke: rgba(55, 84, 237, 0.44);
}

.visual-pill-text,
.visual-title-small,
.visual-module-text,
.visual-callout-text,
.funnel-label,
.visual-decision-text {
  fill: var(--heading);
  text-anchor: middle;
  font-size: 13px;
  font-weight: 700;
}

.visual-decision-text {
  fill: var(--heading);
}

.visual-callout-text.muted {
  fill: var(--muted);
  font-size: 11px;
}

.price-zone,
.bar-muted,
.bar-soft,
.bar-accent,
.score-cell,
.grid-cell,
.funnel-step,
.visual-bar-track,
.visual-bar-fill,
.visual-bar-fill-accent,
.visual-highlight-zone {
  stroke: rgba(19, 27, 98, 0.08);
}

.price-low,
.bar-muted,
.score-3,
.grid-cell,
.visual-bar-track {
  fill: rgba(19, 27, 98, 0.08);
}

.price-mid,
.bar-soft,
.score-4,
.grid-cell.is-opportunity,
.funnel-step.is-highlight,
.visual-highlight-zone,
.visual-bar-fill {
  fill: rgba(55, 84, 237, 0.18);
}

.price-high,
.bar-accent,
.score-5,
.visual-bar-fill-accent {
  fill: rgba(55, 84, 237, 0.42);
}

.visual-marker {
  stroke: rgba(55, 84, 237, 0.28);
  stroke-width: 1.2;
}

.sweet-spot {
  fill: rgba(55, 84, 237, 0.08);
  stroke: rgba(55, 84, 237, 0.26);
}

.visual-point {
  stroke-width: 2;
}

.visual-stage-dot {
  fill: rgba(55, 84, 237, 0.18);
  stroke: rgba(55, 84, 237, 0.32);
  stroke-width: 1;
}

.visual-stage-dot.is-active {
  fill: var(--accent);
  stroke: var(--accent);
}

.visual-arrow-line {
  stroke: var(--accent);
  stroke-width: 1.6;
}

.cluster-1 {
  fill: rgba(19, 27, 98, 0.08);
}

.cluster-2 {
  fill: rgba(55, 84, 237, 0.22);
}

.cluster-3,
.cluster-4 {
  fill: rgba(55, 84, 237, 0.1);
}

.funnel-step {
  fill: rgba(19, 27, 98, 0.08);
}

.funnel-band {
  stroke: rgba(19, 27, 98, 0.08);
}

.band-1 {
  fill: rgba(55, 84, 237, 0.3);
}

.band-2 {
  fill: rgba(55, 84, 237, 0.22);
}

.band-3 {
  fill: rgba(55, 84, 237, 0.15);
}

.band-4 {
  fill: rgba(55, 84, 237, 0.1);
}

.funnel-side-label {
  fill: var(--heading);
  font-size: 13px;
  font-weight: 700;
}

.mds-card {
  fill: var(--surface-strong);
  stroke: rgba(55, 84, 237, 0.2);
}

@media (max-width: 1180px) {
  body.playbook-page,
  .playbook-shell {
    height: auto;
    max-height: none;
  }

  .playbook-shell {
    width: min(calc(100% - 30px), var(--max-width));
    --playbook-page-gutter: 30px;
    --playbook-hero-max: var(--max-width);
    --playbook-stage-max: var(--max-width);
    padding-top: 24px;
    padding-bottom: 36px;
  }

  .playbook-main {
    height: auto;
    display: block;
    overflow: visible;
  }

  .method-carousel-wrap,
  .method-carousel,
  .method-slide-inner {
    height: auto;
    max-height: none;
  }

  .playbook-hero,
  .method-slide-inner {
    grid-template-columns: 1fr;
  }

  .method-slide-inner {
    grid-template-areas:
      "left"
      "visual"
      "copy";
    grid-template-rows: auto auto auto;
  }

  .method-copy-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-self: start;
  }

  .method-visual-card {
    min-height: 300px;
  }

  .signature-visual {
    transform: none;
  }
}

@media (max-width: 760px) {
  .playbook-page {
    overflow: auto;
    overflow-x: hidden;
  }
  .playbook-header {
    grid-template-columns: 1fr;
  }

  .playbook-nav {
    flex-wrap: wrap;
    row-gap: 8px;
  }

  .playbook-main {
    height: auto;
    overflow: visible;
    padding-top: 14px;
  }

  .playbook-hero {
    padding-top: 22px;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .method-selector-wrap {
    grid-template-columns: 1fr;
  }

  .method-arrow {
    display: none;
  }

  .method-carousel-wrap,
  .method-carousel,
  .method-slide-inner {
    height: auto;
    max-height: none;
    min-height: 0;
  }

  .method-slide {
    position: static;
    display: none;
    transform: none;
  }

  .method-slide.is-active {
    display: block;
  }

  .method-slide-inner {
    padding: 16px;
    border-radius: 18px;
  }

  .method-question-track {
    animation-duration: 42s;
  }

  .method-head h2 {
    max-width: none;
  }

  .identity-grid,
  .method-copy-grid {
    grid-template-columns: 1fr;
  }

  .method-copy-block-wide {
    grid-column: span 1;
  }

  .method-visual-card {
    min-height: 0;
  }

  .signature-visual {
    min-height: 240px;
  }

  .playbook-progress {
    align-items: flex-start;
    flex-direction: column;
    position: static;
  }
}

@media (prefers-reduced-motion: reduce) {
  .method-slide,
  .method-tab,
  .method-arrow,
  .method-question-track,
  .method-slide.has-hint .method-slide-inner {
    animation: none;
    transition: none;
  }
}