body,
html {
    margin: 0;
    padding: 0;
    background-color: #050508;
    /* Dark base color */
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    scrollbar-gutter: stable;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

body {
    /*
             * Hover atmosphere system
             * - concept-bg-opacity: ???????/???
             * - atmosphere-active-opacity: ?????????
             * - atmosphere-active-blur: ??/??????????
             * - atmosphere-active-blur-soft/strong: ???????/??????
             * - atmosphere-active-glow: ?????????
             */
    --concept-bg-opacity-1: 0.8;
    --concept-bg-opacity-2: 0.8;
    --concept-bg-opacity-3: 0.8;

    --atmosphere-active-opacity-1: 0.6;
    --atmosphere-active-blur-1: 12px;
    --atmosphere-active-blur-soft-1: 9px;
    --atmosphere-active-blur-strong-1: 17px;
    --atmosphere-active-glow-1: 0.18;

    --atmosphere-active-opacity-2: 0.55;
    --atmosphere-active-blur-2: 11px;
    --atmosphere-active-blur-soft-2: 8px;
    --atmosphere-active-blur-strong-2: 16px;
    --atmosphere-active-glow-2: 0.17;

    --atmosphere-active-opacity-3: 0.5;
    --atmosphere-active-blur-3: 10px;
    --atmosphere-active-blur-soft-3: 7px;
    --atmosphere-active-blur-strong-3: 14px;
    --atmosphere-active-glow-3: 0.16;
}

input,
textarea {
    user-select: text !important;
    -webkit-user-select: text !important;
    -moz-user-select: text !important;
    -ms-user-select: text !important;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus {
    -webkit-text-fill-color: #ffffff !important;
    caret-color: #ffffff;
    box-shadow: 0 0 0 1000px rgba(0, 0, 0, 0.62) inset !important;
    transition: background-color 9999s ease-in-out 0s;
}

/* ??????:??????? 0,????? 10,?????? body ??????? */
#glcanvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

#content-wrapper {
    position: relative;
    z-index: 10;
    min-height: 100dvh;
}

#main-content,
#contact-section {
    min-height: 100dvh;
    box-sizing: border-box;
}

.mobile-snap-page {
    scroll-margin-top: 0;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.logo-pulse {
    width: 5px;
    height: 5px;
    background: #ffffff;
    border-radius: 50%;
    box-shadow: 0 0 10px #ffffff;
    animation: logo-glow 2s infinite alternate;
    display: inline-block;
}

#overlay-status {
    max-width: 320px;
    text-align: center;
    line-height: 1.9;
}

.overlay-primary {
    display: block;
    color: rgba(255, 255, 255, 0.82);
}

.overlay-secondary {
    display: block;
    margin-top: 0.45rem;
    font-size: 9px;
    letter-spacing: 0.18em;
    color: rgba(255, 255, 255, 0.36);
}

#intro-logo-main {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1;
    width: 320px;
    height: 90px;
    contain: layout paint;
}

.nav-lae2-logo {
    position: relative;
    display: inline-block;
    line-height: 1;
}

.nav-lae2-main {
    display: inline-block;
    letter-spacing: 0.4em;
    margin-right: -0.6em;
}

.nav-lae2-mark {
    position: absolute;
    left: calc(100% + 0.6em);
    top: 0.18em;
    font-size: 0.58em;
    letter-spacing: 0;
    opacity: 0.86;
}

.intro-logo-svg {
    width: 320px;
    height: 90px;
    display: block;
    overflow: visible;
}

@keyframes logo-glow {
    from {
        opacity: 0.5;
        box-shadow: 0 0 3px #ffffff;
    }

    to {
        opacity: 1;
        box-shadow: 0 0 12px #ffffff;
    }
}

.perspective-1000 {
    perspective: 1000px;
}

.transform-style-preserve-3d {
    transform-style: preserve-3d;
}

.backface-hidden {
    backface-visibility: hidden;
}

.rotate-x-180 {
    transform: rotateX(180deg);
}

/* JS???????? - ???? CSS hover */
.flip-inner.flipped {
    transform: rotateX(180deg);
}

.flip-inner {
    transform-origin: 50% 50%;
    will-change: transform;
}

.flip-inner>div {
    transform: translateZ(0);
    line-height: 1;
}

.flip-inner>.rotate-x-180 {
    transform: rotateX(180deg) translateZ(0);
}

.glass-card {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: 1px solid transparent;
    box-shadow: none;
    position: relative;
    overflow: visible;
    z-index: 1;
    opacity: 1;
    filter: brightness(1);
    transform: translateZ(0);
    will-change: opacity, filter;
    transition: opacity 1200ms ease, filter 1200ms ease;
}

.glass-card>div:first-child {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}


.glass-card>div:first-child>div:nth-child(2) {
    transform: none !important;
    transition: none;
}

.glass-card>div:first-child>p {
    max-height: 0;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    font-family: 'Cormorant Garamond', Garamond, serif;
    font-weight: 500;
    letter-spacing: 0.01em;
    white-space: pre-wrap;
    transition: max-height 1200ms cubic-bezier(0.16, 1, 0.3, 1),
        margin-top 1200ms cubic-bezier(0.16, 1, 0.3, 1),
        margin-bottom 1200ms cubic-bezier(0.16, 1, 0.3, 1),
        opacity 1200ms ease;
}

.glass-card>div:first-child>div:first-child {
    transform: translateY(-1.5rem);
    transition: transform 1200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card>div:last-child {
    transform: translateY(3rem) !important;
    transition: transform 1200ms cubic-bezier(0.16, 1, 0.3, 1), border-color 1200ms ease;
}

.glass-card.is-active>div:first-child>div:first-child {
    transform: translateY(0);
}

.glass-card.is-active>div:first-child>div:nth-child(2) {
    transform: none !important;
}

.glass-card.is-active>div:first-child>p {
    max-height: clamp(200px, 30vh, 340px);
    /* 针对视口计算的最大高度 */
    margin-top: 4rem !important;
    margin-bottom: 6rem !important;
    opacity: 1;
}

.glass-card.is-active>div:last-child {
    transform: translateY(0) !important;
}

/* 简介文本在超出最大高度时的跑马灯无缝循环动画 */
.glass-card .desc-text-wrapper {
    display: block;
    transform: translateY(0);
}

.glass-card.is-active.needs-scroll .desc-text-wrapper {
    animation: textInfiniteScroll var(--scroll-duration, 15s) linear infinite;
}

@keyframes textInfiniteScroll {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(var(--scroll-dist, -100px));
    }
}

/* ? JS ???? hover ??,?? CSS :hover ?????????? */
#cards-grid.cards-hovering .glass-card {
    opacity: 1;
    filter: none;
}

#cards-grid.cards-hovering .glass-card:not(.is-active) .book-title-main,
#cards-grid.cards-hovering .glass-card:not(.is-active) .book-title-main *,
#cards-grid.cards-hovering .glass-card:not(.is-active) .year-label,
#cards-grid.cards-hovering .glass-card:not(.is-active) .year-label *,
#cards-grid.cards-hovering .glass-card:not(.is-active) .ui-type,
#cards-grid.cards-hovering .glass-card:not(.is-active) .title-location {
    color: rgba(255, 255, 255, 0.1) !important;
    text-shadow: none !important;
}

#cards-grid.cards-hovering .glass-card:not(.is-active) .squatter-main-text,
#cards-grid.cards-hovering .glass-card:not(.is-active) .imhere-main-text,
#cards-grid.cards-hovering .glass-card:not(.is-active) .nineteen-main-text {
    fill: rgba(255, 255, 255, 0.1) !important;
}

#cards-grid.cards-hovering .glass-card:not(.is-active) .squatter-title-svg text:first-child {
    fill: rgba(255, 255, 255, 0.05) !important;
}

.book-title-main {
    min-height: 64px;
}

.squatter-title-svg,
.imhere-title-svg,
.nineteen-title-svg {
    width: 100%;
    height: auto;
    max-width: 380px;
    display: block;
    margin: 0 auto;
}

.squatter-main-text,
.imhere-main-text,
.nineteen-main-text {
    transition: fill 300ms ease;
}

.glass-card.group:hover .squatter-main-text,
.glass-card.group:hover .imhere-main-text,
.glass-card.group:hover .nineteen-main-text,
.glass-card.is-active .squatter-main-text,
.glass-card.is-active .imhere-main-text,
.glass-card.is-active .nineteen-main-text {
    fill: rgba(255, 255, 255, 1);
}

/* ????????????,?????????/??? */
#cards-grid.cards-hovering .glass-card.is-active {
    opacity: 1 !important;
    filter: brightness(1.1) !important;
    background: transparent !important;
    border-color: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
    transform: translateZ(0) !important;
}

/* ?????(???)????????? */
.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    opacity: 0;
    transition: opacity 0.7s ease;
}

.glass-card::after {
    content: "";
    position: absolute;
    inset: -2px;
    background-size: 200% 200%;
    opacity: 0;
    border-radius: inherit;
    transition: opacity 1.2s ease;
    z-index: -1;
    filter: blur(16px);
}

/* ????? block ??????? */
/* Block 1: Squatter (???/???????) */
#cards-grid .glass-card:nth-child(1)::after {
    background:
        radial-gradient(circle at 28% 35%, rgba(90, 66, 101, 0.95) 0%, transparent 54%),
        radial-gradient(circle at 72% 64%, rgba(77, 101, 66, 0.82) 0%, transparent 56%);
}

/* Block 2: I'm Here (深蓝/深咖双色) */
#cards-grid .glass-card:nth-child(2)::after {
    background:
        radial-gradient(circle at 25% 30%, rgba(20, 60, 180, 0.95) 0%, transparent 55%),
        radial-gradient(circle at 75% 70%, rgba(110, 55, 30, 0.9) 0%, transparent 55%);
}

/* Block 3: Nineteen (金黄/天蓝双色) */
#cards-grid .glass-card:nth-child(3)::after {
    background:
        radial-gradient(circle at 25% 30%, rgba(235, 185, 20, 0.95) 0%, transparent 55%),
        radial-gradient(circle at 75% 70%, rgba(30, 144, 255, 0.85) 0%, transparent 55%);
}

/* ???????????? JS ??,?? hover ???? */
.glass-card.is-active::before {
    opacity: 1;
}

.glass-card.is-active::after {
    opacity: 0.5;
    animation: hover-light-drift 4.5s ease-in-out infinite alternate;
}

@keyframes hover-light-drift {
    0% {
        background-position: 0% 0%;
        transform: translate3d(-4%, -3%, 0) scale(0.92) rotate(-3deg);
    }

    25% {
        background-position: 100% 0%;
        transform: translate3d(4%, -2%, 0) scale(1.06) rotate(2deg);
    }

    50% {
        background-position: 100% 100%;
        transform: translate3d(3%, 4%, 0) scale(1.12) rotate(4deg);
    }

    75% {
        background-position: 0% 100%;
        transform: translate3d(-3%, 3%, 0) scale(1.08) rotate(-2deg);
    }

    100% {
        background-position: 0% 50%;
        transform: translate3d(2%, -1%, 0) scale(0.96) rotate(1deg);
    }
}

/* ???????????? */
.contact-card {
    background: rgba(10, 10, 15, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.03);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

/* shader canvas ????????? */
#glcanvas-container.cards-active {
    opacity: 0 !important;
}

#glcanvas-container {
    transition: opacity 1.5s ease-in-out;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
}

#cards-grid.cards-ready .fade-in-up {
    animation: fadeInUp 1.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

.delay-4 {
    animation-delay: 0.8s;
}

.year-label {
    font-family: 'Share Tech Mono', monospace;
    letter-spacing: 0;
    position: relative;
    transition: color 700ms ease, opacity 700ms ease, text-shadow 700ms ease, filter 700ms ease, transform 700ms ease;
    min-width: 4ch;
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
    color: rgba(255, 255, 255, 0.6);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.18);
    transition: color 1.2s ease, text-shadow 1.2s ease, transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), filter 1.2s ease;
}

.year-digits {
    display: inline-block;
    min-width: 4ch;
    letter-spacing: 0.15em;
    margin-right: -0.15em;
    text-align: center;
    transition: opacity 1200ms ease, transform 1200ms cubic-bezier(0.16, 1, 0.3, 1);
}

#cards-grid .glass-card.is-active:nth-child(1) .year-label {
    color: rgb(255, 255, 255) !important;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.85), 0 0 44px rgba(255, 255, 255, 0.55), 0 0 70px rgba(255, 255, 255, 0.35) !important;
}

#cards-grid .glass-card.is-active:nth-child(2) .year-label {
    color: rgb(255, 255, 255) !important;
    text-shadow: 0 0 22px rgba(255, 255, 255, 0.85), 0 0 52px rgba(255, 255, 255, 0.55) !important;
}

#cards-grid .glass-card.is-active:nth-child(3) .year-label {
    color: rgb(255, 255, 255) !important;
    text-shadow: 0 0 24px rgba(255, 255, 255, 0.85), 0 0 56px rgba(255, 255, 255, 0.55) !important;
}

.deefunct-mark {
    font-family: 'Inter', sans-serif;
    font-style: italic;
    font-weight: 300;
    letter-spacing: 0.08em;
    transform: skewX(-7deg);
}

.location-label {
    font-family: 'Cormorant Garamond', Garamond, serif;
    font-size: 0.8rem;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.14em;
}

.ui-type {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 500;
}

.literary-type {
    font-family: 'Cormorant Garamond', Garamond, serif;
    font-weight: 500;
}

.book-title-main {
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.title-location {
    font-family: 'Cormorant Garamond', Garamond, serif;
    font-size: 0.86rem;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.58);
    opacity: 0;
    display: block;
    line-height: 1;
    margin-top: 16px;
    transform: translateY(8px);
    transition: opacity 700ms ease, transform 900ms cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card.is-active .title-location {
    opacity: 1;
    transform: translateY(0);
}

.nineteen-title {
    font-family: 'Josefin Sans', sans-serif;
    font-weight: 300;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    transform: translateX(0.12em);
}

.heaven-type {
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    font-weight: 500;
    letter-spacing: 0.22em;
}

.notify-toggle {
    position: relative;
    width: 44px;
    height: 24px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: background 0.6s ease, border-color 0.6s ease;
}

.notify-toggle::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.7);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), background 0.6s ease;
}

#notify-updates:checked+.notify-toggle {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.55);
}

#notify-updates:checked+.notify-toggle::after {
    transform: translateX(20px);
    background: rgb(255, 255, 255);
    box-shadow: 0 0 14px rgba(255, 255, 255, 0.45);
}

#atmosphere-blur {
    position: fixed;
    inset: -24px;
    z-index: 2;
    pointer-events: none;
    --atmosphere-render-opacity: 0;
    --atmosphere-render-blur: 0px;
    --atmosphere-render-blur-soft: 0px;
    --atmosphere-render-blur-strong: 0px;
    --atmosphere-render-glow-opacity: 0;
    opacity: var(--atmosphere-render-opacity);
    backdrop-filter: blur(var(--atmosphere-render-blur));
    -webkit-backdrop-filter: blur(var(--atmosphere-render-blur));
    background: rgba(8, 8, 12, 0.035);
    transition: opacity 1.8s ease, backdrop-filter 1.8s ease, -webkit-backdrop-filter 1.8s ease, background 1.8s ease;
}

#atmosphere-blur::before {
    content: "";
    position: absolute;
    inset: -8%;
    opacity: 0;
    background:
        radial-gradient(circle at 28% 24%, rgba(255, 255, 255, 0.12), transparent 34%),
        radial-gradient(circle at 72% 68%, rgba(255, 220, 160, 0.1), transparent 38%),
        radial-gradient(circle at 52% 48%, rgba(140, 170, 255, 0.08), transparent 44%);
    filter: blur(26px);
    transform: translate3d(0, 0, 0) scale(1.02);
    transition: opacity 1.4s ease;
}

#atmosphere-blur.is-active {
    animation: atmosphere-blur-breathe 8.5s cubic-bezier(0.42, 0, 0.2, 1) infinite;
}

#atmosphere-blur.is-active::before {
    opacity: var(--atmosphere-render-glow-opacity);
    animation: atmosphere-active-glow-drift 11s cubic-bezier(0.42, 0, 0.2, 1) infinite;
}

@keyframes atmosphere-blur-breathe {
    0% {
        opacity: calc(var(--atmosphere-render-opacity) * 0.92);
        backdrop-filter: blur(var(--atmosphere-render-blur-soft));
        -webkit-backdrop-filter: blur(var(--atmosphere-render-blur-soft));
    }

    38% {
        opacity: calc(var(--atmosphere-render-opacity) * 1.08);
        backdrop-filter: blur(var(--atmosphere-render-blur-strong));
        -webkit-backdrop-filter: blur(var(--atmosphere-render-blur-strong));
    }

    64% {
        opacity: calc(var(--atmosphere-render-opacity) * 0.98);
        backdrop-filter: blur(var(--atmosphere-render-blur));
        -webkit-backdrop-filter: blur(var(--atmosphere-render-blur));
    }

    100% {
        opacity: calc(var(--atmosphere-render-opacity) * 0.9);
        backdrop-filter: blur(var(--atmosphere-render-blur-soft));
        -webkit-backdrop-filter: blur(var(--atmosphere-render-blur-soft));
    }
}

@keyframes atmosphere-active-glow-drift {
    0% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 0.78);
        transform: translate3d(-2%, -1%, 0) scale(1.02) rotate(-1deg);
    }

    16% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 1.18);
        transform: translate3d(1.5%, -2%, 0) scale(1.08) rotate(1deg);
    }

    31% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 0.92);
        transform: translate3d(3%, 1%, 0) scale(1.04) rotate(0deg);
    }

    47% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 1.35);
        transform: translate3d(0%, 2.5%, 0) scale(1.13) rotate(2deg);
    }

    66% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 1.02);
        transform: translate3d(-3%, 1%, 0) scale(1.07) rotate(-1deg);
    }

    83% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 1.24);
        transform: translate3d(-1%, -2.5%, 0) scale(1.1) rotate(1deg);
    }

    100% {
        opacity: calc(var(--atmosphere-render-glow-opacity) * 0.82);
        transform: translate3d(-2%, -1%, 0) scale(1.02) rotate(-1deg);
    }
}

.down-triangle {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 7px solid rgba(255, 255, 255, 0.62);
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.18));
}

.up-triangle {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 7px solid rgba(255, 255, 255, 0.62);
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.18));
}

.left-triangle-shape {
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-right: 7px solid rgba(255, 255, 255, 0.62);
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.18));
}

.page-switcher.is-pinned {
    position: fixed !important;
    top: 32px !important;
    bottom: auto !important;
    z-index: 70;
}

.mobile-page-up {
    display: none;
}

.mobile-page-down {
    display: none;
}

.mobile-contact-footer {
    display: none;
}

.page-switcher .switcher-label,
.page-switcher .switcher-arrow {
    position: absolute;
    left: 50%;
    top: 50%;
    transition: opacity 700ms ease, transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

.page-switcher .switcher-label {
    display: inline-block;
    padding-left: 0.28em;
    white-space: nowrap;
    transform: translate(-50%, -50%);
}

.page-switcher .switcher-down {
    transform: translate(-50%, -50%) translateY(12px);
    opacity: 0;
}

.page-switcher .switcher-up {
    transform: translate(-50%, -50%) translateY(-12px);
    opacity: 0;
}

.page-switcher .switcher-left {
    transform: translate(-50%, -50%) translateY(12px);
    opacity: 0;
}

/* Reader Mode Overrides for page-switcher */
body.is-reader-active .page-switcher {
    z-index: 70 !important;
}

body.is-reader-active .page-switcher .switcher-down,
body.is-reader-active .page-switcher .switcher-up {
    display: none !important;
}

body.is-reader-active .page-switcher.animating .switcher-label,
body.is-reader-active .page-switcher:hover .switcher-label {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(-12px);
}

body.is-reader-active .page-switcher.animating .switcher-left,
body.is-reader-active .page-switcher:hover .switcher-left {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(0);
}

.page-switcher:not(.is-contact-page):hover .switcher-label {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(-12px);
}

.page-switcher:not(.is-contact-page):hover .switcher-down {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(0);
}

.page-switcher.is-contact-page:hover .switcher-label {
    opacity: 0;
    transform: translate(-50%, -50%) translateY(12px);
}

.page-switcher.is-contact-page:hover .switcher-up {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(0);
}

#intro-logo.nav-hidden {
    opacity: 0 !important;
    transform: translate(-50%, -50%) scale(0.35) translateY(-300px) !important;
    pointer-events: none;
    transition: all 0.8s ease !important;
}

#intro-logo.nav-visible {
    opacity: 1 !important;
    transition: all 0.8s ease !important;
}

/* ========================================================
   FULL-PAGE READER MODE
======================================================== */
html.is-reader-active,
body.is-reader-active {
    overflow: hidden !important;
    touch-action: none;
}

body.is-reader-closing {
    overflow: hidden !important;
}

body.is-reader-active .homepage-scrollbar {
    display: none !important;
}

@keyframes readerOverlayGradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

#reader-overlay {
    background: rgba(5, 5, 8, 0.96);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    overflow: hidden;
}

#reader-overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(135deg,
            rgba(0, 0, 0, 0.8) 0%,
            var(--current-feature-color-1, rgba(139, 92, 246, 1)) 20%,
            transparent 40%,
            rgba(255, 255, 255, 0.08) 50%,
            transparent 60%,
            rgba(0, 0, 0, 0.5) 80%,
            var(--current-feature-color-2, rgba(139, 92, 246, 1)) 100%);
    background-size: 300% 300%;
    animation: readerOverlayGradientShift 45s ease infinite;
    opacity: 0.6;
}

#reader-overlay,
#reader-scroll-container {
    transition: all 7s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

#reader-overlay.is-active,
#reader-scroll-container.is-active {
    opacity: 1 !important;
    pointer-events: auto !important;
    transition: all 3s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

#main-content,
#contact-section,
#footer-global,
#header-nav {
    transition: opacity 7s cubic-bezier(0.16, 1, 0.3, 1);
}

body.is-reader-active #main-content,
body.is-reader-active #contact-section,
body.is-reader-active #footer-global,
body.is-reader-active #header-nav {
    opacity: 0 !important;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

#reader-content-container.hero-mode #reader-header {
    transform: translateY(20vh) scale(1.15);
}

#reader-content-container.hero-mode #reader-body {
    opacity: 0;
    pointer-events: none;
    transform: translateY(24px);
}

#reader-content-container:not(.hero-mode) #reader-header {
    transform: translateY(0) scale(1);
}

#reader-content-container:not(.hero-mode) #reader-body {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

#reader-scroll-container.is-active {
    opacity: 1 !important;
    pointer-events: auto !important;
}

#reader-scroll-container.is-active #reader-content-container {
    opacity: 1;
    transform: translateY(0);
}

#reader-body {
    text-align: left;
    white-space: pre-wrap;
}

#reader-body .inner-os {
    display: inline-block;
    font-style: italic;
    font-weight: 100;
    opacity: 0.45;
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
    padding-left: 6rem;
    color: rgba(255, 255, 255, 0.9);
}

#reader-body .dialogue {
    display: inline-block;
    color: #fff;
    font-weight: 400;
    padding-left: 3rem;
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
    text-shadow: 0 0 10px var(--current-feature-color-1, rgba(255, 255, 255, 0.3));
}

#reader-body::-webkit-scrollbar {
    display: none;
}

/* ========================================================
   READER MODE: EXIT BUTTON & OVERRIDES
======================================================== */
body.is-reader-active #intro-logo {
    opacity: 1;
    pointer-events: auto !important;
    transition: opacity 0.4s ease !important;
    z-index: 120;
}

body.is-reader-active.is-reader-scrolling #intro-logo {
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Floating Back Button on the Left of Reader Mode */
#reader-back-btn {
    opacity: 0;
    pointer-events: none;
    transition: opacity 1.5s ease;
}

body.is-reader-active #reader-back-btn {
    pointer-events: auto;
    opacity: 0;
}

body.is-reader-active.is-reader-scrolling #reader-back-btn,
body.is-reader-active #reader-back-btn:hover {
    opacity: 1;
}

body.is-reader-active #reader-back-btn:hover .solid-inner {
    opacity: 0.4;
}

.blinking-inner {
    animation: slow-flash 2.5s infinite ease-in-out;
}

@keyframes slow-flash {

    0%,
    100% {
        opacity: 0.1;
    }

    50% {
        opacity: 0.4;
    }
}


body.is-reader-active .page-switcher {
    display: none !important;
}

@media (min-width: 768px) {
    #cards-grid {
        align-items: center;
    }
}

/* Hide Native Scrollbar */
html,
body {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    display: none;
}

body {
    width: 100vw;
    overflow-x: hidden;
}

#reader-scroll-container {
    scroll-snap-type: y mandatory;
}

.snap-start {
    scroll-snap-align: start;
}

#reader-header.is-scrolled {
    transform: scale(0.65);
}