.photo-book-demo-page {
  min-height: 100vh;
  padding: 154px 0 84px;
  overflow: visible;
}

body[data-page="photography"]:has(.photo-book-demo-page) {
  max-width: 100vw;
  overflow-x: hidden;
}

.photo-book-demo-intro {
  width: min(calc(100vw - 40px), 820px);
}

.photo-book-demo-intro {
  max-width: 820px;
  text-align: center;
}

.photo-book-demo-intro h1 {
  max-width: 760px;
  margin: 18px auto 22px;
  font-family: var(--font-hero-serif);
  font-size: clamp(48px, 6.5vw, 88px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.055em;
  overflow-wrap: anywhere;
  word-break: normal;
}

.photo-book-demo-intro > p:last-child {
  max-width: 680px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 20px);
}

.photo-book-demo-mobile-break {
  display: none;
}

.photo-book-demo {
  width: min(calc(100% - 40px), 1280px);
  margin: 72px auto 0;
  padding: clamp(24px, 3.5vw, 46px);
  border: 1px solid var(--line);
  border-radius: clamp(24px, 3vw, 40px);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: 0 30px 90px color-mix(in srgb, var(--ink) 9%, transparent);
}

.photo-book-demo__topline {
  display: flex;
  margin-bottom: 24px;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.photo-book-demo__topline h2 {
  margin: 5px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.045em;
}

.photo-book-demo__kicker {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.photo-book-demo__status {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
}

.photo-book-demo__status strong {
  min-width: 72px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 14px;
  text-align: right;
}

.photo-book-demo__status button {
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--surface);
  font-size: 11px;
  font-weight: 700;
  transition: border-color 160ms ease, opacity 160ms ease, transform 160ms ease;
}

.photo-book-demo__status button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

.photo-book-demo__status button:disabled {
  cursor: not-allowed;
  opacity: 0.34;
}

.photo-book-stage {
  --book-rotate-x: 0deg;
  --book-rotate-y: 0deg;
  position: relative;
  display: grid;
  min-height: clamp(470px, 58vw, 720px);
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
  border-radius: clamp(20px, 2.4vw, 30px);
  outline: none;
  background:
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--surface) 94%, transparent), transparent 58%),
    color-mix(in srgb, var(--surface-soft) 72%, var(--surface));
  isolation: isolate;
  perspective: 1800px;
  touch-action: pan-y;
  scroll-margin-top: 104px;
}

.photo-book-stage:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 45%, transparent);
}

.photo-book-start {
  position: absolute;
  z-index: 90;
  inset: 0;
  display: grid;
  padding: clamp(28px, 5vw, 64px);
  place-items: center;
  overflow: hidden;
  border-radius: inherit;
  background:
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--surface) 94%, transparent), transparent 58%),
    color-mix(in srgb, var(--surface-soft) 72%, var(--surface));
  opacity: 1;
  visibility: visible;
  transition: opacity 240ms ease 340ms, visibility 0s linear 590ms;
}

.photo-book-start__button {
  display: grid;
  border: 0;
  place-items: center;
  gap: 28px;
  color: var(--ink);
  background: transparent;
  perspective: 1500px;
}

.photo-book-start__book {
  position: relative;
  display: flex;
  width: clamp(230px, 29vw, 350px);
  aspect-ratio: 0.76;
  padding: clamp(24px, 3vw, 34px);
  flex-direction: column;
  overflow: hidden;
  border-radius: 4px 18px 18px 4px;
  color: #f7f4ec;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), transparent 42%),
    linear-gradient(165deg, #1d4a55, #142f38 56%, #0c2027);
  box-shadow:
    -9px 0 0 #c3bcad,
    -14px 2px 0 rgba(54, 51, 44, 0.13),
    0 32px 52px rgba(19, 30, 31, 0.3);
  transform: rotateY(-4deg) rotateZ(-1.5deg);
  transform-origin: left center;
  transform-style: preserve-3d;
  transition: transform 620ms cubic-bezier(0.3, 0.7, 0.15, 1), opacity 260ms ease 300ms, filter 260ms ease 260ms;
}

.photo-book-start__book::before,
.photo-book-start__book::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.photo-book-start__book::before {
  inset: 0 auto 0 12px;
  width: 1px;
  background: rgba(255, 255, 255, 0.17);
  box-shadow: 4px 0 12px rgba(0, 0, 0, 0.28);
}

.photo-book-start__book::after {
  right: -17%;
  bottom: -9%;
  width: 73%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  box-shadow:
    0 0 0 20px rgba(255, 255, 255, 0.026),
    0 0 0 48px rgba(255, 255, 255, 0.018);
}

.photo-book-start__label,
.photo-book-start__meta {
  position: relative;
  z-index: 1;
  font-size: clamp(9px, 0.9vw, 11px);
  font-weight: 700;
  letter-spacing: 0.18em;
}

.photo-book-start__book strong {
  position: relative;
  z-index: 1;
  margin: auto 0;
  font-family: var(--font-hero-serif);
  font-size: clamp(62px, 7vw, 92px);
  font-weight: 300;
  line-height: 0.87;
  letter-spacing: -0.07em;
  text-align: left;
}

.photo-book-start__meta {
  color: rgba(255, 255, 255, 0.58);
}

.photo-book-start__hint {
  display: inline-flex;
  padding: 11px 16px;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-size: 12px;
  font-weight: 700;
  animation: photo-book-hint 2.4s ease-in-out infinite;
}

.photo-book-demo.is-opening .photo-book-start {
  pointer-events: none;
  opacity: 0;
}

.photo-book-demo.is-opening .photo-book-start__book {
  transform: translateX(-22%) rotateY(-74deg) rotateZ(-3deg) scale(0.94);
  filter: blur(1.5px);
  opacity: 0;
}

.photo-book-demo.is-opened .photo-book-start {
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

@keyframes photo-book-hint {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.photo-book-motion-filters {
  position: fixed;
  top: -1px;
  left: -1px;
  overflow: hidden;
  pointer-events: none;
}

.photo-book-demo.is-riffling .photo-book__image,
.photo-book-demo.is-riffling .photo-book__segment-face {
  filter: url(#photo-book-motion-blur-soft);
}

.photo-book-demo.is-riffling-strong .photo-book__image,
.photo-book-demo.is-riffling-strong .photo-book__segment-face {
  filter: url(#photo-book-motion-blur-strong);
}

.photo-book-stage__ambient {
  position: absolute;
  z-index: -1;
  bottom: 9%;
  left: 50%;
  width: 72%;
  height: 15%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: color-mix(in srgb, var(--ink) 18%, transparent);
  filter: blur(34px);
  opacity: 0.48;
}

.photo-book-tilt {
  width: min(88%, 1040px);
  transform: rotateX(var(--book-rotate-x)) rotateY(var(--book-rotate-y));
  transform-style: preserve-3d;
  will-change: transform;
}

.photo-book {
  position: relative;
  width: 100%;
  aspect-ratio: 1.56;
  transform: rotateX(1.5deg) translateZ(0);
  transform-style: preserve-3d;
  user-select: none;
  -webkit-user-select: none;
}

.photo-book::before,
.photo-book::after {
  position: absolute;
  z-index: -2;
  inset: 1.3% 1.2% -1.4%;
  border-radius: 4px 4px 12px 12px;
  background: #d6d0c3;
  box-shadow: 0 24px 46px rgba(31, 28, 22, 0.25);
  content: "";
}

.photo-book::after {
  z-index: -3;
  inset: 2% 2.2% -2.4%;
  background: #aaa393;
  opacity: 0.55;
}

.photo-book__page {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(31, 29, 25, 0.12);
  background: #eeeae1;
  box-shadow: inset 0 0 32px rgba(38, 33, 25, 0.12);
}

.photo-book__page--left {
  left: 0;
  border-radius: 10px 2px 2px 10px;
  transform-origin: right center;
}

.photo-book__page--right {
  right: 0;
  border-radius: 2px 10px 10px 2px;
  transform-origin: left center;
}

.photo-book__image {
  position: absolute;
  inset: 0;
  background-color: #d4d1ca;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  transform: scale(1.002);
}

.photo-book__page::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to top, rgba(10, 12, 14, 0.72), transparent 32%),
    linear-gradient(90deg, transparent 72%, rgba(28, 24, 19, 0.12));
  content: "";
}

.photo-book__page--right::after {
  background:
    linear-gradient(to top, rgba(10, 12, 14, 0.72), transparent 32%),
    linear-gradient(90deg, rgba(28, 24, 19, 0.12), transparent 28%);
}

.photo-book__page figcaption {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  padding: 30px clamp(20px, 3vw, 34px) clamp(20px, 2.5vw, 30px);
  gap: 2px;
  color: #fff;
  pointer-events: none;
}

.photo-book__page figcaption strong {
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 26px);
  letter-spacing: -0.035em;
}

.photo-book__page figcaption span {
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(10px, 1vw, 13px);
}

.photo-book__spine {
  position: absolute;
  z-index: 30;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 24px;
  transform: translateX(-50%) translateZ(3px);
  background: linear-gradient(90deg, transparent, rgba(20, 17, 13, 0.22) 48%, rgba(255, 255, 255, 0.16) 52%, transparent);
  pointer-events: none;
}

.photo-book__turn-mount {
  position: absolute;
  z-index: 24;
  inset: 0;
  overflow: visible;
  transform-style: preserve-3d;
  pointer-events: none;
}

.photo-book__leaf {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
}

.photo-book__leaf-shadow {
  position: absolute;
  z-index: -1;
  top: 2%;
  bottom: 2%;
  left: 50%;
  width: 46%;
  transform-origin: left center;
  background: rgba(16, 14, 11, 0.28);
  filter: blur(18px);
  opacity: 0;
}

.photo-book__leaf.is-backward .photo-book__leaf-shadow {
  left: 4%;
  transform-origin: right center;
}

.photo-book__segment {
  position: absolute;
  top: 0;
  height: 100%;
  transform-style: preserve-3d;
  will-change: transform;
}

.photo-book__segment-face,
.photo-book__segment-shade {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background-color: #ded9cf;
  background-repeat: no-repeat;
}

.photo-book__segment-face--back {
  transform: rotateY(180deg) translateZ(0.2px);
}

.photo-book__segment-shade {
  z-index: 2;
  background-image: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.15));
  pointer-events: none;
}

.photo-book-loupe {
  position: absolute;
  z-index: 50;
  top: 38%;
  left: 71%;
  width: clamp(126px, 13vw, 176px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  cursor: grab;
  filter: drop-shadow(0 18px 23px rgba(20, 18, 14, 0.3));
  touch-action: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.photo-book-loupe.is-dragging {
  cursor: grabbing;
  transform: translate(-50%, -50%) scale(1.025);
}

.photo-book-loupe.is-muted {
  opacity: 0.28;
}

.photo-book-loupe__glass {
  position: absolute;
  inset: 8px;
  overflow: hidden;
  border-radius: 50%;
  background-color: rgba(224, 225, 220, 0.8);
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.75), inset 0 0 24px rgba(255, 255, 255, 0.2);
}

.photo-book-loupe__rim {
  position: absolute;
  inset: 0;
  border: 7px solid #746957;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px #c9beaa, 0 0 0 1px rgba(28, 24, 18, 0.24);
  pointer-events: none;
}

.photo-book-loupe__rim::after {
  position: absolute;
  top: 10%;
  left: 18%;
  width: 34%;
  height: 14%;
  transform: rotate(-25deg);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.26);
  content: "";
}

.photo-book-loupe__handle {
  position: absolute;
  top: 86%;
  left: 74%;
  width: 18px;
  height: 90px;
  transform: rotate(-42deg);
  transform-origin: 50% 0;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(90deg, #4e473d, #9d917c 45%, #514a40);
  box-shadow: 0 8px 14px rgba(20, 18, 14, 0.23);
  pointer-events: none;
}

.photo-book-mobile {
  display: none;
}

.photo-book-controls {
  display: grid;
  margin-top: 18px;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
}

.photo-book-controls button {
  min-width: 118px;
  min-height: 44px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  font-size: 13px;
  font-weight: 700;
  transition: border-color 160ms ease, transform 160ms ease, opacity 160ms ease;
}

.photo-book-controls button:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.photo-book-controls button:disabled {
  cursor: not-allowed;
  opacity: 0.34;
}

.photo-book-controls p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.photo-book-controls__drag {
  display: inline-grid;
  width: 26px;
  height: 26px;
  margin-right: 8px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.photo-book-demo-back {
  display: flex;
  margin-top: 24px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 13px;
}

.photo-book-demo-back a {
  color: var(--ink);
  font-weight: 700;
}

[data-theme="dark"] .photo-book-demo {
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

[data-theme="dark"] .photo-book-stage {
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.055), transparent 58%),
    #141715;
}

@media (max-width: 760px) {
  .photo-book-demo-page {
    padding-top: 126px;
  }

  .photo-book-demo-intro h1 {
    max-width: 100%;
    font-size: clamp(40px, 11.5vw, 54px);
    line-height: 1.12;
  }

  .photo-book-demo-intro .eyebrow,
  .photo-book-demo-intro > p:last-child {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .photo-book-demo-mobile-break {
    display: block;
  }

  .photo-book-demo {
    width: min(calc(100vw - 24px), 620px);
    max-width: calc(100vw - 24px);
    margin-top: 48px;
    padding: 18px;
  }

  .photo-book-demo__topline {
    margin-bottom: 16px;
  }

  .photo-book-demo__status > span {
    display: none;
  }

  .photo-book-demo__status button {
    display: none;
  }

  .photo-book-stage {
    width: 100%;
    min-height: 560px;
    padding: 24px;
    overflow: hidden;
    scroll-margin-top: 82px;
  }

  .photo-book-start {
    padding: 26px 18px;
  }

  .photo-book-start__book {
    width: min(66vw, 260px);
  }

  .photo-book-start__book strong {
    font-size: clamp(56px, 17vw, 74px);
  }

  .photo-book-tilt,
  .photo-book-loupe {
    display: none;
  }

  .photo-book-mobile {
    display: grid;
    width: min(100%, 430px);
    overflow: hidden;
    border: 1px solid rgba(31, 29, 25, 0.14);
    border-radius: 7px 18px 18px 7px;
    background: #eeeae1;
    box-shadow: 0 22px 44px rgba(28, 25, 20, 0.25), -7px 0 0 #c8c1b3;
  }

  .photo-book-mobile__image {
    aspect-ratio: 0.82;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
  }

  .photo-book-mobile__caption {
    display: grid;
    padding: 18px 20px 20px;
    gap: 2px;
    color: #22211f;
  }

  .photo-book-mobile__caption strong {
    font-family: var(--font-display);
    font-size: 21px;
    letter-spacing: -0.035em;
  }

  .photo-book-mobile__caption span {
    color: #6d6961;
    font-size: 12px;
  }

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

  .photo-book-controls p {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .photo-book-controls__desktop {
    display: none;
  }

  .photo-book-controls button {
    width: 100%;
  }

  .photo-book-demo-back {
    width: calc(100vw - 32px);
  }

  .photo-book-demo-back span {
    display: none;
  }
}

@media (max-width: 420px) {
  .photo-book-stage {
    min-height: 500px;
    padding: 18px;
  }
}

@media (hover: none), (pointer: coarse) {
  .photo-book-loupe {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .photo-book-start,
  .photo-book-start__book {
    transition: none;
  }

  .photo-book-start__hint {
    animation: none;
  }

  .photo-book-tilt {
    transform: none !important;
  }

  .photo-book__segment {
    will-change: auto;
  }
}