/* Frontier Industrials funding playbook. */

html {
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

.playbook {
  background: var(--u-paper);
  color: var(--u-ink);
  overflow: clip;
}

.playbook-shell {
  width: min(100% - 48px, 1360px);
  margin-inline: auto;
}

.playbook-hero {
  position: relative;
  min-height: min(820px, calc(100vh - 72px));
  display: flex;
  align-items: flex-end;
  padding: clamp(96px, 12vw, 176px) 0 48px;
  border-bottom: 1px solid var(--u-mist);
  background: var(--u-bone);
}

.playbook-hero::before,
.playbook-hero::after {
  content: "";
  position: absolute;
  inset-block: 0;
  pointer-events: none;
}
.playbook-hero::before {
  inset-inline: 25%;
  border-inline: 1px solid rgba(201, 203, 199, .55);
}
.playbook-hero::after {
  left: 50%;
  border-left: 1px solid rgba(201, 203, 199, .55);
}
.playbook-hero .playbook-shell { position: relative; z-index: 1; }

.playbook-hero .u-section-eye,
.playbook-kicker {
  font-family: var(--font-tech);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: var(--u-tracking-meta);
  line-height: 1.3;
  text-transform: uppercase;
}

.playbook-hero h1 {
  max-width: 1100px;
  margin-top: clamp(40px, 8vw, 112px);
  font-size: clamp(4.4rem, 11.4vw, 10.75rem);
  font-weight: 400;
  line-height: .82;
  letter-spacing: -.075em;
}

.playbook-hero__dek {
  max-width: 720px;
  margin: clamp(40px, 6vw, 72px) 0 56px auto;
  font-size: clamp(1.25rem, 2.2vw, 2rem);
  line-height: 1.18;
  letter-spacing: -.045em;
}

.playbook-hero__diagnostic {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 720px;
  margin: 0 0 48px auto;
  border-top: 1px solid var(--u-ink);
}
.playbook-hero__diagnostic span {
  min-height: 72px;
  padding: 12px 16px 12px 0;
  border-right: 1px solid var(--u-mist);
  font-family: var(--font-tech);
  font-size: 9px;
  line-height: 1.4;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.playbook-hero__diagnostic span:not(:first-child) { padding-left: 16px; }
.playbook-hero__diagnostic span:last-child { border-right: 0; }

.playbook-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--u-ink);
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: var(--u-tracking-meta);
  text-transform: uppercase;
}

.playbook-intro,
.playbook-section,
.playbook-sources,
.playbook-final-cta {
  padding: clamp(88px, 11vw, 160px) 0;
}

.playbook-intro {
  background: var(--u-paper);
  border-bottom: 1px solid var(--u-mist);
}

.playbook-rail-layout {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 3fr);
  gap: clamp(48px, 9vw, 144px);
  align-items: start;
}

.playbook-toc {
  position: sticky;
  top: 112px;
  display: grid;
  border-top: 1px solid var(--u-ink);
}

.playbook-toc p,
.playbook-toc a {
  padding: 11px 0;
  border-bottom: 1px solid var(--u-mist);
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.playbook-toc p { font-weight: 700; }
.playbook-toc a { color: #545756; transition: color 160ms var(--u-ease-out), padding 160ms var(--u-ease-out); }
.playbook-toc a:hover { color: var(--u-ink); padding-left: 8px; }

.playbook-copy { max-width: 900px; }
.playbook-copy h2 { max-width: 880px; margin: 16px 0 48px; }
.playbook-copy > p:not(.playbook-kicker) {
  max-width: 760px;
  margin: 0 0 24px;
  font-size: clamp(1.2rem, 1.9vw, 1.65rem);
  line-height: 1.35;
  letter-spacing: -.035em;
}

.playbook-section { border-bottom: 1px solid var(--u-mist); }
.playbook-section--bone { background: var(--u-bone); }
.playbook-section--ink { background: var(--u-ink); color: var(--u-bone); }
.playbook-section--signal { background: var(--u-signal); }

.playbook-section__head { margin-bottom: clamp(56px, 8vw, 104px); }
.playbook-section__head h2 { max-width: 920px; margin-top: 16px; }
.playbook-section__head--split {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  gap: clamp(48px, 8vw, 128px);
  align-items: end;
}
.playbook-section__head--split > p {
  max-width: 440px;
  font-size: 1.15rem;
  line-height: 1.45;
}

.overlap-map {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  min-height: 520px;
  border: 1px solid var(--u-ink);
}

.overlap-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 520px;
  padding: clamp(24px, 3vw, 48px);
  border-right: 1px solid var(--u-ink);
}
.overlap-card:last-of-type { border-right: 0; }
.overlap-card > span,
.gate-track > article > span,
.domain-grid > article > span,
.method-grid > article > span {
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: var(--u-tracking-meta);
}
.overlap-card h3 { margin-top: 16px; font-size: clamp(2rem, 3.8vw, 3.8rem); font-weight: 400; }
.overlap-card p { max-width: 310px; margin-top: auto; font-size: 1.2rem; line-height: 1.35; }
.overlap-card small {
  margin-top: 24px;
  padding-top: 12px;
  border-top: 1px solid var(--u-mist);
  font-family: var(--font-tech);
  font-size: 9px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.overlap-card--deep { background: var(--u-paper); }
.overlap-card--hard { background: var(--u-white); }
.overlap-card--industrial { background: var(--u-fog); }
.overlap-core {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: clamp(148px, 16vw, 220px);
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  translate: -50% -50%;
  border: 1px solid var(--u-ink);
  border-radius: 50%;
  background: var(--u-signal);
  text-align: center;
  animation: overlap-arrive 700ms var(--u-ease-out) both;
}
.overlap-core span { font-family: var(--font-tech); font-size: 9px; letter-spacing: var(--u-tracking-meta); text-transform: uppercase; }
.overlap-core strong { display: block; font-size: clamp(1.25rem, 2vw, 1.75rem); font-weight: 500; letter-spacing: -.04em; }

.playbook-note {
  max-width: 760px;
  margin: 32px 0 0 auto;
  padding-left: 24px;
  border-left: 2px solid var(--u-ink);
  font-size: 1.05rem;
  line-height: 1.4;
}

.playbook-section--routes { background: var(--u-white); }
.route-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--u-ink);
  border-left: 1px solid var(--u-ink);
}
.route-grid article {
  min-height: 520px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-right: 1px solid var(--u-ink);
  border-bottom: 1px solid var(--u-ink);
}
.route-grid article > span {
  font-family: var(--font-tech);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.route-grid h3 { margin: 56px 0 24px; font-size: clamp(1.5rem, 2.4vw, 2.2rem); font-weight: 400; }
.route-grid dl { margin-top: auto; }
.route-grid dt { margin-top: 16px; padding-top: 10px; border-top: 1px solid var(--u-mist); font-family: var(--font-tech); font-size: 9px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.route-grid dd { margin-top: 5px; font-size: .9rem; line-height: 1.35; }

.gate-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid var(--u-mist);
  background: var(--u-white);
}
.gate-track article {
  min-height: 600px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-right: 1px solid var(--u-mist);
  transition: background 180ms var(--u-ease-out), translate 180ms var(--u-ease-out);
}
.gate-track article:last-child { border-right: 0; }
.gate-track article:hover { background: var(--u-signal-pale); translate: 0 -8px; }
.gate-track h3 { margin: 56px 0 20px; font-size: clamp(1.5rem, 2.3vw, 2.25rem); font-weight: 400; }
.gate-track article > p { min-height: 126px; line-height: 1.42; }
.gate-track dl { margin-top: auto; }
.gate-track dt {
  margin: 20px 0 6px;
  padding-top: 12px;
  border-top: 1px solid var(--u-mist);
  font-family: var(--font-tech);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: var(--u-tracking-meta);
  text-transform: uppercase;
}
.gate-track dd { font-size: .9rem; line-height: 1.35; }

.playbook-section--ink .playbook-kicker { color: var(--u-signal); }
.playbook-section--ink .playbook-section__head--split > p { color: var(--u-mist); }
.readiness-stack { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.readiness-stack article {
  min-height: 340px;
  padding: 28px;
  border-top: 1px solid var(--u-steel);
  border-right: 1px solid var(--u-charcoal);
}
.readiness-stack article:last-child { border-right: 0; }
.readiness-stack span { color: var(--u-signal); font-family: var(--font-tech); font-size: 10px; letter-spacing: var(--u-tracking-meta); }
.readiness-stack h3 { margin-top: 72px; font-size: clamp(1.55rem, 2.7vw, 2.5rem); font-weight: 400; }
.readiness-stack p { margin-top: 20px; color: var(--u-mist); line-height: 1.45; }

.capital-architecture {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.capital-architecture article { min-height: 360px; display: flex; flex-direction: column; padding: 32px; border: 1px solid var(--u-mist); background: var(--u-white); }
.capital-architecture article > span { font-family: var(--font-tech); font-size: 10px; font-weight: 700; letter-spacing: var(--u-tracking-meta); text-transform: uppercase; }
.capital-architecture h3 { margin: 60px 0 20px; font-size: clamp(1.6rem, 3vw, 2.8rem); font-weight: 400; }
.capital-architecture p { max-width: 320px; line-height: 1.42; }
.capital-architecture strong { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--u-mist); font-family: var(--font-tech); font-size: 9px; line-height: 1.5; letter-spacing: .06em; text-transform: uppercase; }
.capital-attributes {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin-top: 24px;
  border-top: 1px solid var(--u-ink);
  border-bottom: 1px solid var(--u-mist);
}
.capital-attributes span {
  padding: 16px 12px 16px 0;
  font-family: var(--font-tech);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.domain-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--u-ink); border-left: 1px solid var(--u-ink); }
.domain-grid article { min-height: 280px; padding: 28px; border-right: 1px solid var(--u-ink); border-bottom: 1px solid var(--u-ink); }
.domain-grid h3 { max-width: 330px; margin: 48px 0 24px; font-size: clamp(1.45rem, 2.3vw, 2.2rem); font-weight: 400; }
.domain-grid p { max-width: 360px; line-height: 1.4; color: #454846; }

.method-grid { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--u-ink); }
.method-grid article { min-height: 320px; padding: 24px 24px 32px; border-right: 1px solid var(--u-mist); }
.method-grid article:last-child { border-right: 0; }
.method-grid h3 { margin: 64px 0 20px; font-weight: 400; }
.method-grid p { line-height: 1.45; }
.playbook-actions { display: flex; gap: 12px; margin-top: 48px; }

.diagnostic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(48px, 10vw, 160px); align-items: start; }
.diagnostic-grid h2 { max-width: 560px; margin-top: 16px; }
.diagnostic-grid ol { list-style: none; border-top: 1px solid var(--u-ink); }
.diagnostic-grid li { display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid rgba(17,17,17,.35); }
.diagnostic-grid li span { font-family: var(--font-tech); font-size: 10px; letter-spacing: var(--u-tracking-meta); }
.diagnostic-grid li p { font-size: 1.15rem; line-height: 1.3; }

.playbook-sources { background: var(--u-paper); border-bottom: 1px solid var(--u-mist); }
.playbook-sources h2 { margin: 16px 0 24px; }
.playbook-sources details { margin-top: 40px; border-top: 1px solid var(--u-ink); }
.playbook-sources summary { cursor: pointer; padding: 16px 0; font-family: var(--font-tech); font-size: 10px; font-weight: 700; letter-spacing: var(--u-tracking-meta); text-transform: uppercase; }
.playbook-sources li { padding: 14px 0; border-top: 1px solid var(--u-mist); }
.playbook-sources a { text-decoration: underline; text-underline-offset: 3px; }

.playbook-final-cta { min-height: 620px; display: flex; align-items: flex-end; background: var(--u-bone); }
.playbook-final-cta h2 { max-width: 980px; margin: 40px 0 24px; font-size: clamp(3.7rem, 8vw, 8rem); }
.playbook-final-cta p { max-width: 640px; margin-bottom: 40px; font-size: clamp(1.2rem, 2vw, 1.6rem); line-height: 1.35; }

@keyframes overlap-arrive {
  from { opacity: 0; scale: .86; }
  to { opacity: 1; scale: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .overlap-core { animation: none; }
  .gate-track article { transition: none; }
}

@media (max-width: 1120px) {
  .gate-track { grid-template-columns: repeat(2, 1fr); }
  .gate-track article { min-height: 390px; border-bottom: 1px solid var(--u-mist); }
  .gate-track article:nth-child(2n) { border-right: 0; }
  .gate-track article:last-child { grid-column: 1 / -1; min-height: 320px; }
  .gate-track article > p { min-height: 0; }
  .readiness-stack { grid-template-columns: repeat(2, 1fr); }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .method-grid article { min-height: 260px; border-bottom: 1px solid var(--u-mist); }
  .route-grid { grid-template-columns: repeat(2, 1fr); }
  .route-grid article { min-height: 430px; }
}

@media (max-width: 800px) {
  .playbook-shell { width: min(100% - 32px, 1360px); }
  .playbook-hero { min-height: 680px; padding-top: 88px; }
  .playbook-hero h1 { font-size: clamp(4.2rem, 20vw, 7.5rem); }
  .playbook-hero__meta { grid-template-columns: 1fr; gap: 8px; }
  .playbook-hero__diagnostic { margin-left: 0; }
  .playbook-rail-layout,
  .playbook-section__head--split,
  .diagnostic-grid { grid-template-columns: 1fr; }
  .playbook-toc { position: static; }
  .overlap-map { grid-template-columns: 1fr; }
  .overlap-card { min-height: 330px; border-right: 0; border-bottom: 1px solid var(--u-ink); }
  .overlap-card:last-of-type { border-bottom: 0; }
  .overlap-core { position: static; width: 170px; margin: -85px auto; translate: none; }
  .playbook-note { margin-left: 0; }
  .capital-architecture { grid-template-columns: 1fr; }
  .domain-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .playbook-hero { min-height: 620px; }
  .playbook-hero h1 { font-size: clamp(3.55rem, 19vw, 5.4rem); }
  .playbook-hero__dek { margin-left: 0; }
  .playbook-section,
  .playbook-intro,
  .playbook-sources,
  .playbook-final-cta { padding: 80px 0; }
  .gate-track,
  .readiness-stack,
  .method-grid,
  .domain-grid,
  .route-grid { grid-template-columns: 1fr; }
  .gate-track article,
  .readiness-stack article,
  .method-grid article,
  .domain-grid article { grid-column: auto; border-right: 0; }
  .playbook-actions { flex-direction: column; align-items: stretch; }
  .playbook-hero__diagnostic,
  .capital-attributes { grid-template-columns: 1fr; }
  .playbook-hero__diagnostic span,
  .capital-attributes span { min-height: auto; padding: 12px 0; border-right: 0; border-bottom: 1px solid var(--u-mist); }
  .playbook-hero__diagnostic span:not(:first-child) { padding-left: 0; }
  .playbook-actions .btn { text-align: center; }
  .playbook-final-cta { min-height: 540px; }
}