.book-hero {
  background:
    radial-gradient(circle at 16% 18%, rgba(200, 164, 93, 0.16), transparent 26rem),
    linear-gradient(135deg, var(--forest) 0%, var(--canopy) 64%, var(--moss-deep) 100%);
  color: var(--paper);
  overflow: hidden;
  padding: clamp(3rem, 6vw, 5.75rem) 1.25rem;
  position: relative;
}

.book-hero::after {
  background-image:
    linear-gradient(rgba(255, 250, 241, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 250, 241, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  content: "";
  inset: 0;
  opacity: 0.34;
  pointer-events: none;
  position: absolute;
}

.book-hero-inner {
  align-items: center;
  display: grid;
  gap: clamp(2.5rem, 6vw, 6rem);
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  margin: 0 auto;
  max-width: var(--max);
  position: relative;
  z-index: 1;
}

.book-cover-stage {
  justify-items: center;
  margin: 0;
  position: relative;
}

.book-cover-stage::before {
  background: rgba(0, 0, 0, 0.28);
  border-radius: 50%;
  bottom: 1.7rem;
  content: "";
  filter: blur(18px);
  height: 34px;
  position: absolute;
  width: 78%;
}

.book-cover-front {
  aspect-ratio: 0.705 / 1;
  background-image: image-set(
    url("/downloads/book/the-bridge-maker-cover.webp") type("image/webp"),
    url("/downloads/book/the-bridge-maker-cover.jpg") type("image/jpeg")
  );
  background-position: right center;
  background-repeat: no-repeat;
  background-size: auto 100%;
  border: 1px solid rgba(255, 250, 241, 0.28);
  box-shadow: 0 30px 74px rgba(0, 0, 0, 0.36);
  max-width: 400px;
  position: relative;
  width: 100%;
  z-index: 1;
}

.book-cover-stage > p {
  color: rgba(255, 250, 241, 0.7);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 1.1rem 0 0;
  position: relative;
  text-transform: uppercase;
  z-index: 1;
}

.book-hero-copy h1 {
  font-size: clamp(3.2rem, 7vw, 6.4rem);
  line-height: 0.98;
  margin-bottom: 1rem;
  max-width: 10ch;
}

.book-subtitle {
  color: var(--brass);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1.3rem, 2.2vw, 1.9rem);
  font-weight: 600;
  line-height: 1.3;
  max-width: 31ch;
}

.book-hook {
  border-bottom: 1px solid rgba(200, 164, 93, 0.5);
  border-top: 1px solid rgba(200, 164, 93, 0.5);
  color: var(--paper);
  font-weight: 700;
  margin: 1.55rem 0;
  max-width: 43ch;
  padding: 1rem 0;
}

.book-hero-copy > p:not(.eyebrow):not(.book-subtitle):not(.book-hook):not(.book-payment-note) {
  color: rgba(255, 250, 241, 0.82);
  max-width: 58ch;
}

.book-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.7rem;
}

.book-hero .button.secondary {
  background: transparent;
  border-color: rgba(255, 250, 241, 0.58);
  color: var(--paper);
}

.book-hero .button.secondary:hover {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--forest);
}

.book-payment-note {
  color: rgba(255, 250, 241, 0.68);
  font-size: 0.88rem;
  margin: 0.8rem 0 0;
}

.book-problem {
  background: var(--field-paper);
}

.book-problem-layout {
  align-items: start;
  display: grid;
  gap: clamp(2rem, 6vw, 6rem);
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.book-problem-layout h2,
.book-outcome-section h2,
.book-inside-section h2,
.book-reader-section h2,
.book-edition-section h2,
.book-print-section h2 {
  max-width: 19ch;
}

.book-problem-copy {
  max-width: 66ch;
}

.book-pullquote {
  color: var(--forest);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  font-weight: 700;
  line-height: 1.35;
  margin-top: 2rem;
}

.book-outcome-section {
  background: var(--paper);
}

.book-outcomes {
  display: grid;
  gap: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 2.3rem 0 0;
  padding: 0;
}

.book-outcomes li {
  border-top: 2px solid var(--forest);
  min-width: 0;
  padding: 1.2rem clamp(1rem, 2vw, 1.6rem) 0 0;
}

.book-outcomes li + li {
  border-left: 1px solid var(--line);
  padding-left: clamp(1rem, 2vw, 1.6rem);
}

.book-outcomes span,
.book-frameworks span,
.book-format {
  color: var(--clay-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.book-outcomes strong {
  color: var(--forest);
  display: block;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.35rem;
  line-height: 1.2;
  margin: 0.8rem 0 0.5rem;
}

.book-outcomes p {
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.5;
  margin: 0;
}

.book-framework-section h2,
.book-framework-section h3 {
  color: var(--paper);
}

.book-framework-section {
  overflow: hidden;
  position: relative;
}

.book-framework-section::after {
  border: 1px solid rgba(200, 164, 93, 0.18);
  border-radius: 50%;
  content: "";
  height: 30rem;
  position: absolute;
  right: -12rem;
  top: -12rem;
  width: 30rem;
}

.book-framework-intro {
  max-width: 66ch;
  position: relative;
  z-index: 1;
}

.book-framework-intro > p:last-child {
  color: rgba(255, 250, 241, 0.76);
}

.book-frameworks {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 3rem;
  position: relative;
  z-index: 1;
}

.book-frameworks article {
  border-top: 1px solid rgba(200, 164, 93, 0.66);
  padding-top: 1.2rem;
}

.book-frameworks h3 {
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  margin: 0.75rem 0;
}

.book-frameworks p {
  color: rgba(255, 250, 241, 0.72);
  margin: 0;
}

.book-inside-section {
  background:
    radial-gradient(circle at 88% 12%, var(--sage-soft), transparent 26rem),
    var(--warm-paper);
}

.book-inside-layout {
  align-items: start;
  display: grid;
  gap: clamp(2.5rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
}

.book-example-list {
  list-style: none;
  margin: 2rem 0;
  padding: 0;
}

.book-example-list li {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0 0.9rem 1.7rem;
  position: relative;
}

.book-example-list li::before {
  color: var(--brass-strong);
  content: "•";
  font-size: 1.4rem;
  left: 0.2rem;
  line-height: 1;
  position: absolute;
  top: 1.05rem;
}

.book-inventory {
  border-bottom: 1px solid var(--line);
  margin: 0;
}

.book-inventory div {
  align-items: baseline;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(72px, 0.35fr) 1fr;
  padding: 1rem 0;
}

.book-inventory dt {
  color: var(--forest);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
}

.book-inventory dd {
  color: var(--muted);
  margin: 0;
}

.book-reader-lines {
  margin-top: 2rem;
}

.book-reader-lines p {
  align-items: baseline;
  border-top: 1px solid var(--line);
  display: grid;
  gap: clamp(1rem, 4vw, 4rem);
  grid-template-columns: minmax(220px, 0.7fr) 1.3fr;
  margin: 0;
  padding: 1rem 0;
}

.book-reader-lines strong {
  color: var(--forest);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.22rem;
}

.book-reader-lines span {
  color: var(--muted);
}

.book-edition-section {
  background: var(--paper);
}

.book-buy-heading {
  margin-bottom: 2.2rem;
  max-width: 68ch;
}

.book-editions {
  display: grid;
  gap: clamp(1rem, 2vw, 1.4rem);
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.book-edition {
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 490px;
  padding: clamp(1.5rem, 4vw, 2.6rem);
}

.book-edition-digital {
  background: var(--forest);
  color: var(--paper);
}

.book-edition-digital h3,
.book-edition-digital .book-price {
  color: var(--paper);
}

.book-edition-digital .book-format {
  color: var(--brass);
}

.book-edition-print {
  background:
    radial-gradient(circle at 86% 18%, var(--brass-wash), transparent 19rem),
    var(--field-paper);
}

.book-edition h3 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin: 0.45rem 0 0.2rem;
}

.book-price {
  color: var(--forest);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(3rem, 7vw, 5.2rem);
  font-weight: 700;
  line-height: 1;
  margin: 1rem 0 1.3rem;
}

.book-price span {
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  vertical-align: top;
}

.book-edition ul {
  margin: 1.4rem 0 2rem;
  padding-left: 1.2rem;
}

.book-edition .button {
  width: 100%;
}

.book-checkout-assurance {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 1rem 0 0;
  text-align: center;
}

.book-checkout-assurance a {
  color: var(--forest);
  font-weight: 700;
}

.book-print-section {
  background: var(--field-paper);
}

.book-print-layout {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 6vw, 5rem);
  grid-template-columns: minmax(260px, 0.55fr) minmax(0, 1.45fr);
}

.book-cover-spread {
  border: 1px solid rgba(16, 37, 27, 0.18);
  box-shadow: var(--shadow);
  display: block;
}

.book-cover-spread img {
  height: auto;
  width: 100%;
}

.book-faq-list {
  border-bottom: 1px solid var(--line);
  max-width: 900px;
}

.book-faq-list details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.book-faq-list summary {
  color: var(--forest);
  cursor: pointer;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.18rem;
  font-weight: 700;
  list-style-position: outside;
  min-height: 44px;
  padding: 0.45rem 1.5rem 0.45rem 0;
}

.book-faq-list p {
  color: var(--muted);
  margin: 0.45rem 0 0;
  max-width: 68ch;
}

@media (max-width: 980px) {
  .book-hero-inner,
  .book-problem-layout,
  .book-inside-layout,
  .book-print-layout {
    grid-template-columns: 1fr;
  }

  .book-cover-front {
    max-width: 330px;
  }

  .book-cover-stage {
    justify-self: center;
    width: min(100%, 330px);
  }

  .book-hero-copy {
    justify-self: center;
    max-width: 720px;
    width: 100%;
  }

  .book-outcomes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .book-outcomes li:nth-child(3) {
    border-left: 0;
  }

  .book-frameworks {
    grid-template-columns: 1fr;
  }

  .book-editions {
    grid-template-columns: 1fr;
  }

  .book-edition {
    min-height: 0;
  }

  .book-print-layout > div {
    max-width: 680px;
  }
}

@media (max-width: 560px) {
  .book-hero {
    padding-bottom: 3.2rem;
    padding-top: 2.6rem;
  }

  .book-hero-inner {
    gap: 2.3rem;
  }

  .book-cover-stage {
    width: min(76vw, 285px);
  }

  .book-hero-copy h1 {
    font-size: clamp(3rem, 16vw, 4.25rem);
  }

  .book-subtitle {
    font-size: 1.25rem;
  }

  .book-hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .book-hero-actions .button {
    width: 100%;
  }

  .book-outcomes {
    grid-template-columns: 1fr;
  }

  .book-outcomes li,
  .book-outcomes li + li {
    border-left: 0;
    padding-left: 0;
  }

  .book-reader-lines p {
    gap: 0.4rem;
    grid-template-columns: 1fr;
  }

  .book-inventory div {
    grid-template-columns: 82px 1fr;
  }

  .book-edition {
    padding: 1.35rem;
  }
}

/* Impeccable mobile legibility floor for book labels. */
@media (max-width: 760px) {
  .book-cover-stage > p,
  .book-outcomes span,
  .book-frameworks span,
  .book-format {
    font-size: 0.875rem;
  }
}