@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable.min.css");
@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-1Thin.woff2') format('woff2');
    font-weight: 100;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-2ExtraLight.woff2') format('woff2');
    font-weight: 200;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-3Light.woff2') format('woff2');
    font-weight: 300;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-4Regular.woff2') format('woff2');
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-5Medium.woff2') format('woff2');
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-6SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-7Bold.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-8ExtraBold.woff2') format('woff2');
    font-weight: 800;
    font-display: swap;
}

@font-face {
    font-family: 'Paperozi';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-9Black.woff2') format('woff2');
    font-weight: 900;
    font-display: swap;
}

@font-face {
    font-family: 'NohHaeChan';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_20-10@1.0/ROEHOE-CHAN.woff') format('woff');
    font-weight: normal;
    font-display: swap;
}


:root {
    /* color */
    --color-black: #111;
    --color-black-75: rgba(17, 17, 17, 0.75);
    --color-white: #f2f2f2;
    --color-gray-100: #ddd;
    --color-gray-300: #bbb;
    --color-gray-500: #999;
    --color-accent: #ff6f61;

    --color-font-gray: #9A9A9A;
    

    /* typography */
    --font-main: "pretendard", sans-serif;

    --font-size-small: 0.75rem;
    --font-size-medium: 1rem;
    --font-size-large: 1.5rem;

    /* size */
    --header-height: 60px;
    --container-width: 1220px;
    --side-padding: 60px;

    /* archive page layout */
    --hero-height: 200vh;
    --hero-title-top: 35vh;
    --explanation-sticky-top: 60vh;
    --explanation-gap: 2rem;
    --history-start: 100vh;
    --history-card-gap: 1rem;
    --archive-block-space: 10rem;

    /* transition */
    --transition-basic: 0.3s ease;
}

[data-theme="light"] {
    --color-black: #ffffff;
    --color-black-75: rgba(255, 255, 255, 0.75);
    --color-white: #111111;
    --color-gray-100: #f5f5f5;
    --color-gray-300: #dddddd;
    --color-gray-500: #999999;
    --color-accent: #ff6f61;
}

/* ============================== Reset ============================== */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    scrollbar-gutter: auto;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--color-white);
    background-color: var(--color-black);
    line-height: 1.5;
}

html.page-transition-preload body {
    visibility: hidden;
}

/* ============================== Common ============================== */
a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    font: inherit;
    cursor: pointer;
}

img {
    display: block;
    max-width: 100%;
}

.container {
    margin: 0 auto;
}

.icon {
    filter: invert(0);
}

[data-theme="light"] .icon {
    filter: invert(1);
}

[hidden] {
  display: none !important;
}

[typewriter-effect] {
    visibility: hidden;
}

[typewriter-effect].is-typing,
[typewriter-effect].is-typed {
    visibility: visible;
}

/* ============================== Header ============================== */

.header {
    width: 100%;
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;

    /*background-color: var(--color-black-75);*/
    background: rgba(255, 255, 255, 0.36);
    backdrop-filter: blur(11.9px);
    -webkit-backdrop-filter: blur(11.9px);
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    width: var(--container-width);
    box-sizing: border-box;
    padding: 0;
    
}

.header .logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.header .nav {
    display: flex;
    align-items: center;
}

.header .nav ul {
    display: flex;
    gap: 2rem;
}

.header .nav ul li {
    font-size: 0.95rem;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.7);

    font-family: 'Paperozi', sans-serif;
}

/* ============================== Main ============================== */

.main {
    min-height: 100vh;
}

.main .container {
    width: var(--container-width);
    margin: 0 auto;

    display: flex;
    flex-direction: column;

    color: var(--color-white);
}


/* ============================== Hero ============================== */

.hero {
    position: relative;

    width: 100%;
    height: var(--hero-height);
}

.hero .card {
    position: relative;

    width: 100%;
    height: 100%;
}


/* ============================== Hero Title ============================== */

.hero .title {
    position: absolute;
    top: var(--hero-title-top);
    left: 50%;

    transform: translateX(-50%);

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero .title h1 {
    font-size: 6rem;
    font-weight: 400;
    line-height: 1.2;
    text-align: center;

    font-family: 'NohHaeChan', sans-serif;
}

.hero .title .long {
    letter-spacing: 0.7em;
    padding-left: 0.7em;
}


/* ============================== Explanation ============================== */

.hero .explanation {
    position: sticky;
    top: var(--explanation-sticky-top);

    z-index: 10;

    width: 100%;

    display: flex;
    justify-content: center;
    gap: var(--explanation-gap);


    padding-left: 9rem;
    padding-top: 3rem;
    margin: 0;

    color: #111;

    overflow: visible;

    opacity: 1;

    transition: 0.3s ease;
    transition: padding-left 1s ;

    will-change:
        transform,
        opacity;
}

.hero .explanation.is-archive-hidden {
    opacity: 0;
    pointer-events: none;
    transition: 0.3s ease;
}

.hero .card .explanation h2 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-align: right;
}

.hero .card .explanation p {
    font-size: 0.9rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    text-align: left;
    line-height: 1.8;
    color: #111;

    overflow: visible;
}


.history-title-mask {
    display: block;
    align-self: flex-start;

    overflow: hidden;
}

.history-title-mask h2 {
    margin: 0;

    will-change: transform;
}

.hero .explanation.is-history-section {
    padding-left: 0rem;
    padding-top: 5rem;
    transition: 1s ease;
}

.hero .explanation.is-history-section .history-title-mask h2 {
    font-size: 1.5rem;
}

.hero .explanation.is-history-section p {
    font-size: 1rem;
}

.history-description-line-mask {
    display: block;

    overflow: hidden;
}

.history-description-line {
    display: block;

    will-change: transform;
}


/* ============================== History ============================== */

/*
 * history는 hero 안의 정확한 100vh 지점에 배치.
 *
 * 첫 번째 휠에서 100vh로 이동하면
 * history-card가 화면 중앙에 들어온다.
 */
.history {
    position: absolute;
    top: var(--history-start);
    left: 0;

    width: 100%;
    height: 100vh;

    margin: 0;

    display: flex;
    align-items: center;
    justify-content: center;
}

.history .card-wrap {
    width: 100%;
    margin: 0;

    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--history-card-gap);
}

.history .card-wrap .history-card {
    width: 200px;
    height: 200px;

    background-color: var(--color-gray-300);

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    border-radius: 5px;

    cursor: pointer;

    /* 화면 밖 기본 상태 */
    opacity: 0;

    box-shadow: 0 0 500px 15px rgba(255, 255, 255, 0);

    transform:
        translate3d(0, 55px, 0)
        scale(0.78);

    transform-origin: center center;

    transition:
        opacity
        1.35s
        ease
        var(--history-current-delay, 0ms),

        transform
        2.08s
        cubic-bezier(.18, .82, .22, 1)
        var(--history-current-delay, 0ms),

        scale
        1.65s
        cubic-bezier(.22, 1, .36, 1),
        
        box-shadow
        0.5s
        ease;

    will-change:
        transform,
        opacity,
        scale,
        box-shadow;
}

.history .card-wrap .history-card.is-history-visible {
    opacity: 1;

    transform:
        translate3d(0, 0, 0)
        scale(1);
}

.history .card-wrap .history-card:hover {
    scale: 1.1;
    z-index: 999;

    box-shadow: 0 0 500px 15px rgba(255, 255, 255, 0.3);
    transition: 0.8xs ease;
}


/* ============================== Archive ============================== */

.archive-wrap {
    width: var(--container-width);

    /*
     * 200vh에 도착하자마자 archive가 시작되도록
     * 상단 margin은 제거하고 하단 여백만 유지.
     */
    margin: 0 auto var(--archive-block-space);

    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 72px;
    gap: 1.5rem;
}


.archive-box {
    width: 100%;
    height: 100%;

    background-color: var(--color-gray-300);

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    border-radius: 5px;
    overflow: hidden;

    opacity: 0;
    transform: translate3d(0, 70px, 0);

    transition:
        opacity 0.9s ease var(--reveal-delay, 0ms),
        transform 0.9s cubic-bezier(.22, 1, .36, 1) var(--reveal-delay, 0ms);

    will-change: transform, opacity;
}

.archive-box.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.archive-box h4 {
    margin: 0;
    padding: 0.25rem;

    font-size: 1.5rem;
    font-weight: 800;

    line-height: 1.25;

    color: var(--color-white);

    letter-spacing: -0.02em;
}

/* =========================
   01
========================= */

.card01 {
    grid-column: 1 / 5;
    grid-row: 1 / span 6;
}

.card02 {
    grid-column: 5 / 7;
    grid-row: 1 / span 3;
}

.card03 {
    grid-column: 5 / 7;
    grid-row: 4 / span 3;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: start;
    

    background-color: #fff  !important;

    text-align: left;
}

/* =========================
   02
========================= */

.card04 {
    grid-column: 1 / 4;
    grid-row: 7 / span 2;
}

.card05 {
    grid-column: 4 / 7;
    grid-row: 7 / span 2;
}


/* =========================
   03
========================= */

.card06 {
    grid-column: 1 / 3;
    grid-row: 9 / span 3;
}

.card07 {
    grid-column: 1 / 3;
    grid-row: 12 / span 3;
}

.card08 {
    grid-column: 3 / 7;
    grid-row: 9 / span 8;
}

.card09 {
    grid-column: 1 / 3;
    grid-row: 15 / span 2;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: end;

    background-color: #fff  !important;

    text-align: right;
}


/* =========================
   04
========================= */

.card10 {
    grid-column: 1 / 5;
    grid-row: 17 / span 2;
}

.card11 {
    grid-column: 5 / 7;
    grid-row: 17 / span 2;
}


/* =========================
   05
========================= */

.card12 {
    grid-column: 1 / 4;
    grid-row: 19 / span 3;
}

.card13 {
    grid-column: 4 / 7;
    grid-row: 19 / span 3;
}


/* =========================
   06
========================= */

.card14 {
    grid-column: 1 / 3;
    grid-row: 22 / span 3;
}

.card15 {
    grid-column: 3 / 5;
    grid-row: 22 / span 6;
}

.card16 {
    grid-column: 5 / 7;
    grid-row: 22 / span 3;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: start;
    

    background-color: #fff  !important;

    text-align: left;
}

.card17 {
    grid-column: 1 / 3;
    grid-row: 25 / span 3;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: end;

    background-color: #fff  !important;

    text-align: right;
}

.card18 {
    grid-column: 5 / 7;
    grid-row: 25 / span 3;
}


/* =========================
   07
========================= */

.card19 {
    grid-column: 1 / 3;
    grid-row: 28 / span 2;
}

.card20 {
    grid-column: 3 / 7;
    grid-row: 28 / span 2;
}

.card21 {
    grid-column: 1 / 7;
    grid-row: 30 / span 5;
}

/* ============================== Footer ============================== */

.footer {
    background-color: var(--color-black);
    padding: 1.25rem 0;

    text-align: center;
}

.footer .container {
    width: var(--container-width);
    margin: 0 auto;

    display: flex;
    justify-content: space-between;
}

.footer .container .footer-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;

    text-align: left;
}

.footer .container .footer-info h3 {
    margin: 0;

    color: var(--color-white);
    line-height: 1.2;
}

.footer .container .footer-info p {
    margin: 0;

    color: var(--color-white);
    font-size: 0.5rem;
}

.footer .container .footer-info img {
    margin: 0;
}

.footer .container .footer-icons {
    display: flex;
    align-items: flex-end;
    gap: 20px;
}

.footer .container .footer-icons .icon {
    width: 2rem;
    height: 2rem;
}


@media (prefers-reduced-motion: reduce) {
    .archive-box,
    .history .card-wrap .history-card {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .history-title-mask h2,
    .history-description-line {
        animation-duration: 1ms !important;
    }
}