:root {
  --paper: #e8f5f3;
  --ink: #162136;
  --muted-ink: #59606a;
  --copper: #a85f37;
  --rule: rgba(22, 33, 54, 0.24);
  --font-display: Georgia, "Times New Roman", Times, serif;
  --font-sans: "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.book-page {
  isolation: isolate;
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  width: 100%;
  min-height: 100svh;
  overflow: hidden;
  padding: clamp(1.5rem, 3.4vw, 3.5rem) clamp(1.5rem, 5vw, 5.5rem);
  background:
    radial-gradient(circle at 73% 46%, rgba(168, 95, 55, 0.07), transparent 26rem),
    var(--paper);
}

.paper-grain {
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(97deg, transparent 0 7px, rgba(22, 33, 54, 0.025) 8px, transparent 9px 13px),
    repeating-linear-gradient(7deg, transparent 0 11px, rgba(255, 255, 255, 0.16) 12px, transparent 13px 17px);
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.19em;
  line-height: 1.25;
  text-transform: uppercase;
}

.masthead-status {
  color: var(--muted-ink);
  text-align: right;
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding: clamp(3.5rem, 8vh, 7rem) 0;
}

.title-column {
  position: relative;
  z-index: 1;
  max-width: 64rem;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0 0 clamp(1.25rem, 2.6vh, 2.25rem);
  color: var(--copper);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 2.7rem;
  height: 1px;
  background: currentColor;
  content: "";
}

h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.8;
}

.title-think,
.title-before {
  display: block;
}

.title-think {
  font-size: clamp(5.4rem, 12vw, 12.2rem);
  letter-spacing: -0.075em;
}

.title-before {
  margin-top: 0.16em;
  padding-left: 0.05em;
  font-size: clamp(3.2rem, 7.1vw, 7.2rem);
  font-style: italic;
  letter-spacing: -0.06em;
  white-space: nowrap;
}

.subtitle {
  margin: clamp(2.25rem, 5vh, 4.25rem) 0 0;
  padding-left: clamp(1rem, 3.2vw, 3rem);
  border-left: 1px solid var(--copper);
  color: var(--muted-ink);
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 1.75vw, 1.7rem);
  line-height: 1.45;
}

.byline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}

.byline-label {
  color: var(--copper);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.byline p {
  display: flex;
  align-items: baseline;
  gap: clamp(0.8rem, 1.5vw, 1.5rem);
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.45rem);
  line-height: 1.25;
}

.byline-divider {
  color: var(--copper);
  font-size: 0.78em;
  font-style: italic;
}

@media (prefers-reduced-motion: no-preference) {
  .masthead,
  .title-column,
  .byline {
    animation: settle 800ms cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }

  .title-column {
    animation-delay: 80ms;
  }

  .byline {
    animation-delay: 220ms;
  }
}

@keyframes settle {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }

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

@media (max-width: 800px) {
  .book-page {
    min-height: 100svh;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding: clamp(3.5rem, 10vh, 6rem) 0;
  }

  .title-before {
    white-space: normal;
  }

}

@media (max-width: 540px) {
  .masthead-name {
    display: none;
  }

  .masthead-status {
    width: 100%;
    text-align: left;
  }

  .title-think {
    font-size: clamp(4.6rem, 24vw, 7.1rem);
  }

  .title-before {
    max-width: 8ch;
    font-size: clamp(2.75rem, 15.5vw, 4.6rem);
    line-height: 0.92;
  }

  .subtitle {
    padding-left: 1rem;
    font-size: 1.08rem;
  }

  .byline {
    align-items: flex-start;
  }

  .byline p {
    flex-direction: column;
    gap: 0.12rem;
    text-align: right;
  }

  .byline-divider {
    display: none;
  }
}