.w-layout-transition {
    --w-transition-paper: color-mix(in srgb, var(--w-panel-bg, #fffaf3) 90%, #fff);
    --w-transition-ink: var(--w-dark, #3a2c17);
    --w-transition-accent: var(--w-primary, #c8a882);
    width: 100%;
    color: var(--w-transition-ink);
}

.w-layout-transition__status {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
        "edition counter"
        "label counter";
    align-items: end;
    gap: .08rem .8rem;
    width: min(100%, 68rem);
    margin: 0 auto .7rem;
    padding: 0 .2rem;
}

.w-layout-transition__edition {
    grid-area: edition;
    color: color-mix(in srgb, var(--w-transition-accent) 78%, #59452c);
    font-size: .6rem;
    font-weight: 800;
    letter-spacing: .18em;
}

.w-layout-transition__status strong {
    grid-area: label;
    overflow: hidden;
    font-family: "Noto Serif KR", Georgia, serif;
    font-size: .9rem;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.w-layout-transition__counter {
    grid-area: counter;
    color: color-mix(in srgb, var(--w-transition-ink) 58%, transparent);
    font-size: .72rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: .08em;
}

.w-layout-transition__viewport {
    position: relative;
    width: min(100%, 68rem);
    min-height: 36rem;
    margin: 0 auto;
    perspective: 1600px;
    perspective-origin: 50% 42%;
    touch-action: pan-y;
}

.w-layout-transition--flip-card .w-layout-transition__viewport {
    width: min(100%, 34rem);
    height: clamp(33rem, 72svh, 46rem);
    min-height: 0;
}

.w-layout-transition--paged-book .w-layout-transition__viewport {
    height: min(44rem, 72svh);
}

.w-layout-transition__stack {
    position: absolute;
    inset: 0;
    border: 1px solid color-mix(in srgb, var(--w-transition-accent) 24%, transparent);
    border-radius: clamp(1rem, 4vw, 1.65rem);
    background: var(--w-transition-paper);
    box-shadow: 0 18px 44px rgba(54, 39, 20, .13);
}

.w-layout-transition__stack--back {
    opacity: .44;
    transform: translateY(.72rem) scale(.94) rotateZ(-1.1deg);
}

.w-layout-transition__stack--middle {
    opacity: .7;
    transform: translateY(.38rem) scale(.972) rotateZ(.55deg);
}

.w-layout-transition--paged-book .w-layout-transition__stack--back {
    transform: translateY(.65rem) scale(.97);
}

.w-layout-transition--paged-book .w-layout-transition__stack--middle {
    transform: translateY(.32rem) scale(.985);
}

.w-layout-transition__page {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: grid;
    grid-template-columns: 1fr;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--w-transition-accent) 34%, rgba(255, 255, 255, .72));
    border-radius: clamp(1rem, 4vw, 1.65rem);
    background: var(--w-transition-paper);
    box-shadow:
        0 28px 65px rgba(54, 39, 20, .22),
        0 5px 14px rgba(54, 39, 20, .1),
        inset 0 0 0 1px rgba(255, 255, 255, .52);
    transform: translateZ(0);
    transform-style: preserve-3d;
    backface-visibility: hidden;
    will-change: transform, opacity;
}

.w-layout-transition__page::after {
    position: absolute;
    inset: 0;
    z-index: 20;
    content: "";
    pointer-events: none;
    background: linear-gradient(
        105deg,
        transparent 25%,
        rgba(255, 255, 255, .34) 47%,
        rgba(255, 255, 255, .08) 58%,
        transparent 75%);
    opacity: 0;
    transform: translateX(-115%);
}

.w-layout-transition--flip-card .w-layout-transition__page--next {
    transform-origin: 100% 50%;
    animation: w-layout-flip-next var(--w-layout-transition-duration, 650ms)
        cubic-bezier(.18, .72, .18, 1) both;
}

.w-layout-transition--flip-card .w-layout-transition__page--previous {
    transform-origin: 0 50%;
    animation: w-layout-flip-previous var(--w-layout-transition-duration, 650ms)
        cubic-bezier(.18, .72, .18, 1) both;
}

.w-layout-transition--flip-card .w-layout-transition__page--next::after,
.w-layout-transition--flip-card .w-layout-transition__page--previous::after {
    animation: w-layout-transition-shine var(--w-layout-transition-duration, 650ms)
        ease-out both;
}

.w-layout-transition--paged-book .w-layout-transition__page {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-radius: .7rem;
    overflow: visible;
    background: transparent;
    box-shadow: 0 24px 65px rgba(54, 39, 20, .22);
    transform-style: preserve-3d;
}

.w-layout-transition--paged-book.is-book-compact .w-layout-transition__viewport {
    width: min(100%, 34rem);
}

.w-layout-transition--paged-book.is-book-compact .w-layout-transition__page {
    grid-template-columns: 1fr;
    overflow: hidden;
    border-radius: clamp(1rem, 4vw, 1.65rem);
}

.w-layout-transition--paged-book.is-transitioning .w-layout-transition__page {
    pointer-events: none;
}

.w-layout-transition__sheet {
    position: relative;
    min-width: 0;
    height: 100%;
    overflow: hidden auto;
    overscroll-behavior: contain;
    background: var(--w-transition-paper);
    scrollbar-color: color-mix(in srgb, var(--w-transition-accent) 44%, transparent) transparent;
    scrollbar-width: thin;
}

.w-layout-transition__sheet--single {
    border-radius: inherit;
}

.w-layout-transition__sheet--left {
    border-radius: .7rem 0 0 .7rem;
    box-shadow: inset -16px 0 24px -24px rgba(36, 23, 10, .6);
}

.w-layout-transition__sheet--right {
    border-left: 1px solid color-mix(in srgb, var(--w-transition-accent) 18%, transparent);
    border-radius: 0 .7rem .7rem 0;
    box-shadow: inset 16px 0 24px -24px rgba(36, 23, 10, .6);
}

.w-layout-transition__sheet--empty {
    background:
        repeating-linear-gradient(0deg, transparent 0 27px, rgba(159, 128, 91, .045) 27px 28px),
        var(--w-transition-paper);
}

.w-layout-transition__sheet--mobile {
    display: block;
}

.w-layout-transition__spine {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    z-index: 18;
    width: 1.8rem;
    pointer-events: none;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(24, 14, 7, .18) 32%,
        rgba(24, 14, 7, .28) 45%,
        rgba(255, 255, 255, .42) 52%,
        rgba(38, 24, 11, .19) 61%,
        transparent);
    opacity: .82;
    transform: translateX(-50%);
}

.w-layout-transition__turning-leaf {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 14;
    width: 50%;
    pointer-events: none;
    contain: layout style paint;
    transform-style: preserve-3d;
    backface-visibility: visible;
    will-change: transform;
}

.w-layout-transition__turning-leaf--next {
    left: 50%;
    transform-origin: 0 50%;
}

.w-layout-transition__turning-leaf--previous {
    left: 0;
    transform-origin: 100% 50%;
}

.w-layout-transition__turning-leaf--next.is-animating {
    animation: w-layout-leaf-next var(--w-layout-transition-duration, 650ms)
        cubic-bezier(.22, .7, .12, 1) both;
}

.w-layout-transition__turning-leaf--previous.is-animating {
    animation: w-layout-leaf-previous var(--w-layout-transition-duration, 650ms)
        cubic-bezier(.22, .7, .12, 1) both;
}

.w-layout-transition__leaf-face {
    position: absolute;
    inset: 0;
    display: block;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--w-transition-accent) 19%, transparent);
    border-radius: 0 .38rem .38rem 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background:
        linear-gradient(100deg, transparent 48%, rgba(47, 29, 12, .1)),
        repeating-linear-gradient(0deg, transparent 0 27px, rgba(159, 128, 91, .045) 27px 28px),
        var(--w-transition-paper);
    box-shadow:
        0 8px 28px rgba(43, 27, 12, .19),
        inset 13px 0 18px -19px rgba(33, 19, 8, .62);
    transform: rotateY(.001deg);
    transform-style: preserve-3d;
}

.w-layout-transition__leaf-face::before,
.w-layout-transition__leaf-face::after {
    position: absolute;
    inset: 0;
    z-index: 4;
    content: "";
    pointer-events: none;
}

/* 책등에서 시작하는 고정 접힘과 종이 곡률처럼 이동하는 명암을 분리한다. */
.w-layout-transition__leaf-face::before {
    background: linear-gradient(
        90deg,
        rgba(31, 18, 8, .2),
        rgba(31, 18, 8, .06) 7%,
        transparent 19%,
        transparent 82%,
        rgba(255, 255, 255, .2));
}

.w-layout-transition__leaf-face::after {
    background:
        radial-gradient(ellipse 32% 118% at 92% 50%, rgba(255, 255, 255, .42), transparent 64%),
        linear-gradient(96deg, transparent 42%, rgba(44, 26, 10, .24) 73%, rgba(255, 255, 255, .28));
    background-position: 100% 50%;
    opacity: .18;
    transform: translateX(22%);
}

.w-layout-transition__leaf-face--back {
    background:
        linear-gradient(260deg, transparent 55%, rgba(47, 29, 12, .13)),
        repeating-linear-gradient(0deg, transparent 0 27px, rgba(159, 128, 91, .045) 27px 28px),
        color-mix(in srgb, var(--w-transition-paper) 94%, var(--w-transition-accent));
    border-radius: .38rem 0 0 .38rem;
    box-shadow:
        0 8px 28px rgba(43, 27, 12, .19),
        inset -13px 0 18px -19px rgba(33, 19, 8, .62);
    transform: rotateY(180deg) translateZ(.1px);
}

.w-layout-transition__turning-leaf--previous .w-layout-transition__leaf-face {
    border-radius: .38rem 0 0 .38rem;
    box-shadow:
        0 8px 28px rgba(43, 27, 12, .19),
        inset -13px 0 18px -19px rgba(33, 19, 8, .62);
}

.w-layout-transition__turning-leaf--previous .w-layout-transition__leaf-face--back {
    border-radius: 0 .38rem .38rem 0;
    box-shadow:
        0 8px 28px rgba(43, 27, 12, .19),
        inset 13px 0 18px -19px rgba(33, 19, 8, .62);
}

.w-layout-transition__turning-leaf--next.is-animating .w-layout-transition__leaf-face::after {
    animation: w-layout-leaf-curve-next var(--w-layout-transition-duration, 650ms)
        cubic-bezier(.22, .7, .12, 1) both;
}

.w-layout-transition__turning-leaf--previous.is-animating .w-layout-transition__leaf-face::after {
    animation: w-layout-leaf-curve-previous var(--w-layout-transition-duration, 650ms)
        cubic-bezier(.22, .7, .12, 1) both;
}

.w-layout-transition__leaf-content {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    overflow: hidden auto;
    overscroll-behavior: contain;
    background: var(--w-transition-paper);
    scrollbar-width: none;
}

.w-layout-transition__leaf-content::-webkit-scrollbar {
    display: none;
}

.w-layout-transition__leaf-content--mobile {
    display: block;
}

.w-layout-transition--paged-book.is-book-compact .w-layout-transition__spine {
    left: 0;
    width: .75rem;
    transform: none;
}

.w-layout-transition--paged-book.is-book-compact.is-book-left-page .w-layout-transition__spine {
    right: 0;
    left: auto;
    transform: scaleX(-1);
}

.w-layout-transition--paged-book.is-book-compact .w-layout-transition__turning-leaf {
    left: 0;
    width: 100%;
}

.w-layout-transition--paged-book.is-book-compact .w-layout-transition__turning-leaf--next {
    transform-origin: 0 50%;
}

.w-layout-transition--paged-book.is-book-compact .w-layout-transition__turning-leaf--previous {
    transform-origin: 100% 50%;
}

.w-layout-transition__reduced-overlay {
    display: none;
}

.w-layout-transition__navigation {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: .65rem;
    width: min(100%, 34rem);
    margin: 1.05rem auto 0;
    outline: none;
}

.w-layout-transition__navigation:focus-visible,
.w-layout-transition__keyboard:focus-visible {
    border-radius: 999px;
    outline: 2px solid color-mix(in srgb, var(--w-transition-accent) 72%, #fff);
    outline-offset: .3rem;
}

.w-layout-transition__arrow {
    min-width: 4.3rem;
    min-height: 2.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .38rem;
    border: 1px solid color-mix(in srgb, var(--w-transition-accent) 42%, transparent);
    border-radius: 999px;
    color: var(--w-transition-ink);
    background: color-mix(in srgb, var(--w-transition-paper) 84%, transparent);
    box-shadow: 0 8px 22px rgba(54, 39, 20, .1);
    font: inherit;
    cursor: pointer;
    touch-action: manipulation;
    transition: transform .18s ease, background .18s ease, opacity .18s ease;
}

.w-layout-transition__arrow:hover:not(:disabled) {
    background: color-mix(in srgb, var(--w-transition-accent) 15%, #fff);
    transform: translateY(-1px);
}

.w-layout-transition__arrow:active:not(:disabled) {
    transform: translateY(1px) scale(.98);
}

.w-layout-transition__arrow:focus-visible,
.w-layout-transition__dot:focus-visible {
    outline: 2px solid var(--w-transition-accent);
    outline-offset: 2px;
}

.w-layout-transition__arrow:disabled {
    opacity: .32;
    cursor: not-allowed;
    box-shadow: none;
}

.w-layout-transition__arrow small {
    font-size: .68rem;
    font-weight: 700;
}

.w-layout-transition__progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .16rem;
    min-width: 0;
    overflow: hidden;
}

.w-layout-transition__dot {
    width: 1.3rem;
    height: 2.35rem;
    flex: 0 1 1.3rem;
    display: grid;
    min-width: .72rem;
    padding: 0;
    place-items: center;
    border: 0;
    background: transparent;
    cursor: pointer;
    touch-action: manipulation;
}

.w-layout-transition__dot span {
    width: .32rem;
    height: .32rem;
    display: block;
    border-radius: 999px;
    background: color-mix(in srgb, var(--w-transition-ink) 24%, transparent);
    transition: width .22s ease, background .22s ease;
}

.w-layout-transition__dot.is-active span {
    width: .9rem;
    background: var(--w-transition-accent);
}

.w-layout-transition__ellipsis {
    flex: 0 0 auto;
    color: color-mix(in srgb, var(--w-transition-ink) 42%, transparent);
    font-size: .72rem;
    line-height: 1;
}

.w-layout-transition__keyboard {
    width: fit-content;
    margin: .8rem auto 0;
    padding: .45rem .75rem;
    border-radius: 999px;
    color: color-mix(in srgb, var(--w-transition-ink) 55%, transparent);
    font-size: .65rem;
}

@keyframes w-layout-flip-next {
    0% {
        opacity: .18;
        transform: translateX(10%) rotateY(88deg) scale(.96);
        filter: brightness(.78);
    }
    48% {
        opacity: .88;
        filter: brightness(.94);
    }
    100% {
        opacity: 1;
        transform: translateX(0) rotateY(0) scale(1);
        filter: brightness(1);
    }
}

@keyframes w-layout-flip-previous {
    0% {
        opacity: .18;
        transform: translateX(-10%) rotateY(-88deg) scale(.96);
        filter: brightness(.78);
    }
    48% {
        opacity: .88;
        filter: brightness(.94);
    }
    100% {
        opacity: 1;
        transform: translateX(0) rotateY(0) scale(1);
        filter: brightness(1);
    }
}

@keyframes w-layout-leaf-next {
    0% {
        transform: rotateY(0deg) translateZ(1px);
        box-shadow: 6px 5px 16px rgba(40, 23, 9, .16);
    }
    38% {
        box-shadow: -10px 12px 25px rgba(40, 23, 9, .25);
    }
    52% {
        transform: rotateY(-94deg) translateZ(10px);
        box-shadow: -24px 16px 34px rgba(40, 23, 9, .36);
    }
    100% {
        transform: rotateY(-180deg) translateZ(1px);
        box-shadow: -6px 5px 16px rgba(40, 23, 9, .16);
    }
}

@keyframes w-layout-leaf-previous {
    0% {
        transform: rotateY(0deg) translateZ(1px);
        box-shadow: -6px 5px 16px rgba(40, 23, 9, .16);
    }
    38% {
        box-shadow: 10px 12px 25px rgba(40, 23, 9, .25);
    }
    52% {
        transform: rotateY(94deg) translateZ(10px);
        box-shadow: 24px 16px 34px rgba(40, 23, 9, .36);
    }
    100% {
        transform: rotateY(180deg) translateZ(1px);
        box-shadow: 6px 5px 16px rgba(40, 23, 9, .16);
    }
}

@keyframes w-layout-leaf-curve-next {
    0%, 100% {
        opacity: .16;
        transform: translateX(24%);
    }
    45%, 58% {
        opacity: .82;
        transform: translateX(-13%);
    }
}

@keyframes w-layout-leaf-curve-previous {
    0%, 100% {
        opacity: .16;
        transform: translateX(-24%) scaleX(-1);
    }
    45%, 58% {
        opacity: .82;
        transform: translateX(13%) scaleX(-1);
    }
}

@keyframes w-layout-page-fade {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

@keyframes w-layout-transition-shine {
    0% {
        opacity: 0;
        transform: translateX(-115%);
    }
    36% {
        opacity: .85;
    }
    100% {
        opacity: 0;
        transform: translateX(115%);
    }
}

@media (max-width: 719px) {
    .w-layout-transition--paged-book .w-layout-transition__viewport {
        width: min(100%, 34rem);
        height: clamp(33rem, 72svh, 46rem);
    }

    .w-layout-transition--paged-book .w-layout-transition__page {
        grid-template-columns: 1fr;
        border-radius: clamp(1rem, 4vw, 1.65rem);
        overflow: hidden;
    }

    .w-layout-transition--paged-book .w-layout-transition__sheet--desktop,
    .w-layout-transition__leaf-content--desktop {
        display: none;
    }

    .w-layout-transition--paged-book .w-layout-transition__sheet--mobile,
    .w-layout-transition__leaf-content--mobile {
        display: block;
    }

    .w-layout-transition--paged-book .w-layout-transition__sheet--mobile {
        border-radius: inherit;
        box-shadow: none;
    }

    .w-layout-transition--paged-book .w-layout-transition__spine {
        left: 0;
        width: .75rem;
        transform: none;
    }

    .w-layout-transition--paged-book.is-turning-previous .w-layout-transition__spine {
        right: 0;
        left: auto;
        transform: scaleX(-1);
    }

    .w-layout-transition--paged-book .w-layout-transition__turning-leaf {
        left: 0;
        width: 100%;
    }

    .w-layout-transition--paged-book .w-layout-transition__turning-leaf--next {
        transform-origin: 0 50%;
    }

    .w-layout-transition--paged-book .w-layout-transition__turning-leaf--previous {
        transform-origin: 100% 50%;
    }

    .w-layout-transition__leaf-face,
    .w-layout-transition__turning-leaf--previous .w-layout-transition__leaf-face {
        border-radius: inherit;
    }
}

@media (max-width: 390px) {
    .w-layout-transition--flip-card .w-layout-transition__viewport,
    .w-layout-transition--paged-book .w-layout-transition__viewport {
        height: clamp(31rem, 70svh, 42rem);
    }

    .w-layout-transition__navigation {
        gap: .35rem;
    }

    .w-layout-transition__arrow {
        min-width: 3.55rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .w-layout-transition__page--next,
    .w-layout-transition__page--previous,
    .w-layout-transition__page--next::after,
    .w-layout-transition__page--previous::after {
        animation: none !important;
    }

    .w-layout-transition--paged-book .w-layout-transition__turning-leaf {
        display: none;
    }

    .w-layout-transition--paged-book .w-layout-transition__reduced-overlay {
        position: absolute;
        inset: 0;
        z-index: 22;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        overflow: hidden;
        pointer-events: none;
        border-radius: inherit;
        opacity: 1;
    }

    .w-layout-transition--paged-book .w-layout-transition__reduced-overlay.is-animating {
        animation: w-layout-page-fade 160ms ease-out both;
    }

    .w-layout-transition__arrow,
    .w-layout-transition__dot span {
        transition: none;
    }
}

@media (max-width: 719px) and (prefers-reduced-motion: reduce) {
    .w-layout-transition--paged-book .w-layout-transition__reduced-overlay {
        grid-template-columns: 1fr;
    }
}