:root {
  --bg: #0d1418;
  --panel: rgba(10, 16, 20, 0.74);
  --panel-strong: rgba(11, 18, 23, 0.9);
  --stroke: rgba(242, 225, 195, 0.18);
  --text: #f5ecd8;
  --muted: #cdbf9d;
  --accent: #f4d391;
  --accent-strong: #d2a55e;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --title-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --body-font: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(227, 196, 137, 0.12), transparent 36%),
    linear-gradient(180deg, #17222b 0%, #0d1418 48%, #090d10 100%);
  color: var(--text);
  font-family: var(--body-font);
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

button {
  font: inherit;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  padding: 24px;
}

.ambient-glow {
  position: fixed;
  z-index: 0;
  width: 28rem;
  height: 28rem;
  filter: blur(40px);
  opacity: 0.32;
  pointer-events: none;
  transition: background 600ms ease;
}

.ambient-glow-left {
  top: -8rem;
  left: -8rem;
  background: radial-gradient(circle, rgba(214, 142, 71, 0.42), transparent 70%);
}

.ambient-glow-right {
  right: -8rem;
  bottom: -8rem;
  background: radial-gradient(circle, rgba(102, 143, 191, 0.36), transparent 70%);
}

.topbar,
.reader-stage,
.reader-footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto 20px;
  max-width: 1280px;
}

.brand-lockup h1,
.brand-lockup p {
  margin: 0;
}

.eyebrow {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-lockup h1 {
  font-family: var(--title-font);
  font-size: clamp(1.6rem, 2vw, 2.2rem);
  font-weight: 600;
}

.ghost-button,
.nav-button {
  border: 1px solid var(--stroke);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
  cursor: pointer;
}

.ghost-button:hover,
.nav-button:hover {
  transform: translateY(-1px);
  border-color: rgba(244, 211, 145, 0.42);
  background: rgba(255, 255, 255, 0.08);
}

.ghost-button {
  padding: 0.8rem 1rem;
}

.reader-stage {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.page-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(320px, 0.85fr);
  gap: 0;
  width: min(1280px, calc(100vw - 48px));
  min-height: calc(100vh - 170px);
  border: 1px solid var(--stroke);
  border-radius: 30px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 12%),
    var(--panel);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
}

.page-card.is-full-bleed {
  grid-template-columns: 1fr;
}

.page-card.is-full-bleed .page-content {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  max-width: min(820px, 100%);
  margin: 0 auto;
  padding: 48px 40px 36px;
  background: linear-gradient(180deg, transparent, rgba(7, 11, 13, 0.88) 30%, rgba(7, 11, 13, 0.95));
}

.page-card.is-full-bleed .page-media {
  min-height: calc(100vh - 170px);
}

.page-card.is-full-bleed {
  position: relative;
}

.page-media {
  position: relative;
  min-height: 360px;
  background-color: #0d1216;
  overflow: hidden;
}

.page-media.is-empty {
  background:
    radial-gradient(circle at 25% 20%, rgba(244, 211, 145, 0.12), transparent 24%),
    radial-gradient(circle at 75% 75%, rgba(109, 140, 167, 0.16), transparent 28%),
    linear-gradient(180deg, #0f171d 0%, #121d24 100%);
}

.page-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  animation: floatIn 900ms ease both;
}

.page-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.22));
}

.page-content {
  padding: clamp(24px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 18%),
    linear-gradient(180deg, rgba(17, 26, 30, 0.68), rgba(11, 17, 22, 0.92));
}

.page-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
}

.page-title {
  margin: 0;
  font-family: var(--title-font);
  font-size: clamp(2rem, 4.6vw, 4.5rem);
  line-height: 0.95;
  max-width: 12ch;
}

.page-text {
  margin-top: 20px;
  display: grid;
  gap: 14px;
  color: rgba(245, 236, 216, 0.93);
  font-size: clamp(1rem, 1.2vw, 1.08rem);
  line-height: 1.76;
  overflow: hidden;
}

.page-text p {
  margin: 0;
  max-width: 60ch;
  white-space: pre-wrap;
}

.page-text .lead {
  color: #fff3d5;
  font-size: 1.08em;
}

.related-gallery {
  display: none;
  margin-top: 28px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.related-gallery.is-visible {
  display: grid;
}

.related-card {
  border: 1px solid rgba(242, 225, 195, 0.16);
  border-radius: 22px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

.related-card img {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}

.related-card figcaption {
  padding: 14px 14px 16px;
  color: var(--muted);
  font-size: 0.92rem;
}

.measure-card {
  position: fixed;
  left: -200vw;
  top: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: -1;
}

.reader-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 18px auto 0;
  padding-bottom: 8px;
  max-width: 1280px;
}

.nav-button {
  padding: 0.95rem 1.3rem;
  min-width: 132px;
  text-align: center;
}

.nav-button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

.page-indicator {
  color: var(--muted);
  letter-spacing: 0.08em;
}

.page-divider {
  opacity: 0.55;
  padding: 0 0.35rem;
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: scale(1.06);
  }

  to {
    opacity: 1;
    transform: scale(1.02);
  }
}

@media (max-width: 900px) {
  .page-shell {
    padding: 16px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .page-card,
  .page-card.is-full-bleed {
    grid-template-columns: 1fr;
    width: min(100%, calc(100vw - 32px));
    min-height: auto;
  }

  .page-card.is-full-bleed .page-content {
    position: relative;
    inset: auto;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 16%),
      linear-gradient(180deg, rgba(17, 26, 30, 0.68), rgba(11, 17, 22, 0.92));
  }

  .page-media,
  .page-card.is-full-bleed .page-media {
    min-height: min(62vh, 580px);
  }

  .page-title {
    max-width: none;
  }

  .reader-footer {
    position: sticky;
    bottom: 0;
    padding: 12px 0 calc(8px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, transparent, rgba(9, 13, 16, 0.92) 40%);
  }

  .related-gallery {
    grid-template-columns: 1fr;
  }

  .nav-button {
    min-width: 0;
    flex: 1;
  }
}