@font-face {
    font-family: 'Iropke Batang';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('https://cdn.jsdelivr.net/font-iropke-batang/1.2/IropkeBatangM.woff') format('woff');
}

:root {
    --bg: #0a0e14;
    --glass: rgba(12, 15, 20, 0.62);
    --line: rgba(255, 255, 255, 0.14);
    --text: #eceef2;
    --text-2: #a3adbd;
    --accent: #7db6e3;
    --paper: #efece5;
    --ink: #1b1b1d;
    --ink-2: #6a6a6c;
    --serif: 'Iropke Batang', 'Noto Serif KR', 'Noto Serif', 'Batang', Georgia, 'Times New Roman', serif;
    --sans: system-ui, -apple-system, 'Segoe UI', 'Malgun Gothic', 'Apple SD Gothic Neo', 'Noto Sans', sans-serif;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --safe-b: max(18px, env(safe-area-inset-bottom));
    --safe-t: max(14px, env(safe-area-inset-top));
}

* { box-sizing: border-box; }
html, body {
    margin: 0;
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    -webkit-tap-highlight-color: transparent;
    overscroll-behavior: none;
}
button, a { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

#stage { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; outline: none; }
#stage.dragging { cursor: grabbing; }
#stage.pointing { cursor: pointer; }

/* ---------- chrome: everything fades away while you are simply looking ---------- */
.chrome { transition: opacity 0.9s ease, transform 0.9s var(--ease); visibility: hidden; }
body.inside .chrome { visibility: visible; }
body.idle .chrome { opacity: 0; pointer-events: none; }
body.idle #dock { transform: translate(-50%, 10px); }

.ic {
    position: relative;
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    flex: none;
    padding: 0;
    color: var(--text);
    background: none;
    border: 0;
    border-radius: 50%;
    text-decoration: none;
    transition: background 0.3s ease, color 0.3s ease;
}
.ic svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.ic:hover { background: rgba(255, 255, 255, 0.09); }
.ic:focus-visible { outline: 1px solid var(--accent); outline-offset: 2px; }
.ic[aria-pressed="true"] { color: var(--accent); }
.ic:disabled { opacity: 0.45; cursor: default; }
.ic .on { display: none; }
.ic[aria-pressed="true"] .on { display: inline; }
.ic[aria-pressed="true"] .off { display: none; }
@media (hover: hover) {
    .ic[data-tip]:hover::after {
        content: attr(data-tip);
        position: absolute;
        bottom: calc(100% + 10px);
        left: 50%;
        transform: translateX(-50%);
        padding: 5px 10px;
        font-size: 12px;
        letter-spacing: 0.03em;
        white-space: nowrap;
        color: var(--text);
        background: rgba(8, 10, 14, 0.9);
        border: 1px solid var(--line);
        border-radius: 6px;
        pointer-events: none;
    }
    #bar .ic[data-tip]:hover::after { bottom: auto; top: calc(100% + 8px); left: auto; right: 0; transform: none; }
    #bar #home[data-tip]:hover::after { left: 0; right: auto; }
}

#bar {
    position: fixed;
    top: var(--safe-t);
    left: 14px;
    right: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    pointer-events: none;
}
#bar > * { pointer-events: auto; }
#bar .ic { background: var(--glass); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid var(--line); }
#where {
    margin: 0 auto 0 12px;
    font-family: var(--serif);
    font-size: 15px;
    letter-spacing: 0.14em;
    color: var(--text);
    text-shadow: 0 1px 12px rgba(0, 0, 0, 0.8);
    pointer-events: none;
}

#dock {
    position: fixed;
    left: 50%;
    bottom: var(--safe-b);
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 5px 8px;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 999px;
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
#dock .sep { width: 1px; height: 20px; margin: 0 6px; background: var(--line); }
body.focused #dock, body.focused #joy, body.focused #together { opacity: 0; pointer-events: none; }
@media (pointer: coarse) { #look { display: none; } }

/* the guided visit has its own controls: previous, play or pause, next, stop */
#transport {
    position: fixed;
    left: 50%;
    top: calc(var(--safe-t) + 56px);
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 5px 10px;
    overflow: hidden;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 999px;
    backdrop-filter: blur(14px) saturate(1.2);
    -webkit-backdrop-filter: blur(14px) saturate(1.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
#transport .sep { width: 1px; height: 20px; margin: 0 6px; background: var(--line); }
#transport .big { width: 46px; height: 46px; color: #0b0f15; background: #eceef2; }
#transport .big:hover { background: #fff; }
#transport .big svg { stroke-width: 1.8; }
#transport .big[aria-pressed="true"] { color: #0b0f15; }
#transport #t-stop svg rect { fill: currentColor; fill-opacity: 0.15; }
#t-count { min-width: 76px; padding: 0 4px; font-size: 12.5px; letter-spacing: 0.06em; text-align: center; color: var(--text-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
#t-bar { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: rgba(255, 255, 255, 0.08); }
#t-bar b { display: block; height: 100%; background: var(--accent); transform-origin: left center; transform: scaleX(0); }
[dir="rtl"] #t-bar b { transform-origin: right center; }
[dir="rtl"] #t-prev svg, [dir="rtl"] #t-next svg { transform: scaleX(-1); }
#transport .ic[data-tip]:hover::after { bottom: auto; top: calc(100% + 12px); }
body.touring #dock, body.touring #together { opacity: 0; pointer-events: none; }
body.touring #where { display: none; }

.pop {
    position: fixed;
    z-index: 20;
    display: flex;
    flex-direction: column;
    gap: 1px;
    padding: 8px;
    max-height: min(70vh, 520px);
    overflow: auto;
    background: rgba(10, 13, 18, 0.92);
    border: 1px solid var(--line);
    border-radius: 14px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}
@keyframes pop-in { from { opacity: 0; transform: translateY(8px); } }
.pop button {
    padding: 9px 16px;
    text-align: start;
    font-size: 14px;
    letter-spacing: 0.04em;
    color: var(--text-2);
    background: none;
    border: 0;
    border-radius: 8px;
    white-space: nowrap;
}
.pop button:hover { color: var(--text); background: rgba(255, 255, 255, 0.07); }
.pop button[aria-current="true"], .pop button[aria-pressed="true"] { color: var(--accent); }
#halls { left: 50%; bottom: calc(var(--safe-b) + 64px); transform: translateX(-50%); min-width: 190px; font-family: var(--serif); }
#langs { top: calc(var(--safe-t) + 52px); right: 14px; display: grid; grid-template-columns: 1fr 1fr; min-width: 260px; animation: pop-in 0.35s var(--ease); }

#map {
    position: fixed;
    left: 16px;
    bottom: var(--safe-b);
    padding: 8px;
    box-sizing: content-box;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
}
body.nomap #map { display: none; }

#together {
    position: fixed;
    left: 50%;
    bottom: calc(var(--safe-b) + 62px);
    transform: translateX(-50%);
    margin: 0;
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--text-2);
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.9);
    white-space: nowrap;
    pointer-events: none;
}

#caption {
    position: fixed;
    left: 50%;
    bottom: calc(var(--safe-b) + 88px);
    transform: translateX(-50%);
    max-width: calc(100% - 32px);
    font-family: var(--serif);
    font-size: 16px;
    letter-spacing: 0.06em;
    text-align: center;
    text-shadow: 0 1px 14px rgba(0, 0, 0, 0.95), 0 0 3px rgba(0, 0, 0, 0.8);
    pointer-events: none;
}
#caption small { display: block; margin-top: 3px; font-family: var(--sans); font-size: 12px; letter-spacing: 0.04em; color: var(--text-2); }

/* mouse-look reticle and hints */
#reticle { position: fixed; left: 50%; top: 50%; width: 5px; height: 5px; margin: -2.5px; border-radius: 50%; background: rgba(255, 255, 255, 0.85); box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35); display: none; pointer-events: none; }
body.looking #reticle { display: block; }
body.looking #stage { cursor: none; }
#hint {
    position: fixed;
    left: 50%;
    top: 22%;
    transform: translateX(-50%);
    max-width: calc(100% - 40px);
    padding: 10px 18px;
    font-size: 13px;
    letter-spacing: 0.03em;
    text-align: center;
    background: rgba(8, 10, 14, 0.82);
    border: 1px solid var(--line);
    border-radius: 10px;
    pointer-events: none;
}

/* touch: a thumb stick to walk with */
#joy {
    position: fixed;
    left: 22px;
    bottom: calc(var(--safe-b) + 70px);
    width: 104px;
    height: 104px;
    display: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    touch-action: none;
}
#joy i { position: absolute; left: 50%; top: 50%; width: 44px; height: 44px; margin: -22px; border-radius: 50%; background: rgba(255, 255, 255, 0.22); border: 1px solid rgba(255, 255, 255, 0.4); }
@media (pointer: coarse) { #joy { display: block; } }

/* ---------- the label beside a work ---------- */
#panel {
    position: fixed;
    right: 20px;
    bottom: var(--safe-b);
    width: min(330px, calc(100% - 32px));
    padding: 22px 24px 16px;
    color: var(--ink);
    background: var(--paper);
    border-radius: 3px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55), 0 1px 0 rgba(255, 255, 255, 0.6) inset;
}
#panel-close { position: absolute; top: 8px; inset-inline-end: 10px; width: 32px; height: 32px; color: var(--ink-2); background: none; border: 0; font-size: 20px; line-height: 1; }
#panel-count { margin: 0 0 10px; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2); }
#panel-title { margin: 0; padding-inline-end: 24px; font-family: var(--serif); font-weight: 400; font-size: 23px; line-height: 1.3; letter-spacing: 0.02em; }
#panel-titleby { margin: 6px 0 0; font-size: 11px; line-height: 1.5; color: var(--ink-2); }
#panel-titleby.own { color: #1f5f93; }
#panel-meta { margin: 14px 0 0; padding-top: 12px; border-top: 1px solid rgba(0, 0, 0, 0.14); display: grid; grid-template-columns: auto 1fr; gap: 5px 14px; font-size: 12.5px; }
#panel-meta dt { color: var(--ink-2); }
#panel-meta dd { margin: 0; }
#panel-credit { margin: 12px 0 0; font-size: 10.5px; line-height: 1.55; color: var(--ink-2); }
#panel-actions { display: flex; align-items: center; gap: 4px; margin-top: 12px; padding-top: 10px; border-top: 1px solid rgba(0, 0, 0, 0.14); }
#panel-actions > * { padding: 7px 8px; font-size: 12.5px; letter-spacing: 0.04em; color: var(--ink); text-decoration: none; text-align: center; background: none; border: 0; border-radius: 4px; }
#panel-actions > *:hover { background: rgba(0, 0, 0, 0.07); }
#panel-actions #open, #panel-actions #share { flex: 1; }
#panel-actions #prev, #panel-actions #next { width: 38px; font-size: 16px; }
[dir="rtl"] #panel { right: auto; left: 20px; }
[dir="rtl"] #panel-actions #prev, [dir="rtl"] #panel-actions #next { transform: scaleX(-1); }

/* ---------- welcome: a title page over one of his photographs; the hall stays unseen until you enter ---------- */
#welcome {
    position: fixed;
    inset: 0;
    z-index: 30;
    display: grid;
    place-items: center;
    padding: 28px 24px;
    background: #07090d;
    overflow: auto;
    transition: opacity 1.4s ease;
}
#welcome.gone { opacity: 0; pointer-events: none; }
#welcome .art {
    position: fixed;
    inset: 0;
    background: url('../assets/abstract/C27A2287_1.jpg') center 30% / cover no-repeat;
    opacity: 0.5;
    -webkit-mask-image: radial-gradient(ellipse 85% 70% at 50% 22%, #000 0%, rgba(0, 0, 0, 0.45) 45%, transparent 82%);
    mask-image: radial-gradient(ellipse 85% 70% at 50% 22%, #000 0%, rgba(0, 0, 0, 0.45) 45%, transparent 82%);
    animation: w-drift 36s ease-in-out infinite alternate;
    pointer-events: none;
}
@keyframes w-drift { from { transform: scale(1.04) translateY(0); } to { transform: scale(1.14) translateY(-2%); } }
#welcome-lang {
    position: fixed;
    top: var(--safe-t);
    inset-inline-end: 14px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px 7px 10px;
    font-size: 12.5px;
    letter-spacing: 0.03em;
    color: var(--text);
    background: rgba(8, 11, 16, 0.5);
    border: 1px solid var(--line);
    border-radius: 999px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
#welcome-lang svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.4; }
#welcome.gone #welcome-lang { display: none; }
.pop { z-index: 40; }

#welcome .card { position: relative; width: min(640px, 100%); text-align: center; }
#welcome .card > *, #welcome .head > * { animation: w-rise 1.2s var(--ease) backwards; }
#welcome .head > :nth-child(1) { animation-delay: 0.1s; }
#welcome .head > :nth-child(2) { animation-delay: 0.22s; }
#welcome .head > :nth-child(3) { animation-delay: 0.36s; }
#welcome .card > .head { animation: none; }
#welcome .card > .lead { animation-delay: 0.52s; }
#welcome .card > .how { animation-delay: 0.68s; }
#welcome .card > .go { animation-delay: 0.84s; }
@keyframes w-rise { from { opacity: 0; transform: translateY(18px); } }

.eyebrow { margin: 0 0 20px; font-size: 11px; letter-spacing: 0.42em; text-indent: 0.42em; text-transform: uppercase; color: var(--accent); }
#welcome h1 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: clamp(31px, 8.6vw, 54px); line-height: 1.2; letter-spacing: 0.08em; text-wrap: balance; text-shadow: 0 2px 30px rgba(0, 0, 0, 0.6); }
.dates { display: flex; justify-content: center; align-items: center; gap: 14px; flex-wrap: wrap; margin: 18px 0 0; font-family: var(--serif); color: #c3cad6; font-size: 14px; letter-spacing: 0.1em; text-shadow: 0 1px 14px rgba(0, 0, 0, 0.8); }
.dates i { width: 28px; height: 1px; background: rgba(255, 255, 255, 0.35); }
.lead {
    max-width: 30em;
    margin: 36px auto 0;
    font-family: var(--serif);
    font-size: 15.5px;
    line-height: 2;
    color: #d9dde5;
    word-break: keep-all;
    text-wrap: pretty;
}
.how { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 40px 0 0; padding: 26px 0 0; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.how li { display: flex; flex-direction: column; align-items: center; gap: 12px; font-size: 12.5px; line-height: 1.6; color: var(--text-2); word-break: keep-all; text-wrap: balance; }
.how svg { width: 26px; height: 26px; fill: none; stroke: var(--text); stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round; opacity: 0.85; }
.go { margin-top: 42px; }
#enter {
    min-width: 230px;
    padding: 16px 44px;
    font-family: var(--serif);
    font-size: 16px;
    letter-spacing: 0.3em;
    text-indent: 0.3em;
    color: #0b0f15;
    background: #eceef2;
    border: 1px solid #eceef2;
    border-radius: 999px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
    transition: background 0.4s ease, color 0.4s ease, opacity 0.4s ease, transform 0.5s var(--ease);
}
#enter:hover:not(:disabled) { background: #fff; transform: translateY(-2px); }
#enter:active:not(:disabled) { transform: scale(0.98); }
#enter:disabled { color: var(--text-2); background: transparent; border-color: rgba(255, 255, 255, 0.22); box-shadow: none; cursor: progress; letter-spacing: 0.06em; text-indent: 0; font-size: 13.5px; }
.fallback { margin: 18px 0 0; font-size: 12px; letter-spacing: 0.04em; }
.fallback a { color: var(--text-2); text-underline-offset: 4px; text-decoration-color: rgba(255, 255, 255, 0.25); }

/* phones: the photograph fills the top, the words follow, and the way in stays within reach of the thumb */
@media (max-width: 600px) {
    #welcome { display: block; padding: 0; }
    #welcome .art {
        opacity: 0.72;
        background-position: center 40%;
        -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.75) 26%, transparent 56%);
        mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.75) 26%, transparent 56%);
    }
    #welcome .card {
        display: flex;
        flex-direction: column;
        min-height: 100svh;
        width: 100%;
        padding: calc(var(--safe-t) + 21svh) 26px calc(var(--safe-b) + 14px);
    }
    .eyebrow { margin-bottom: 14px; font-size: 10.5px; }
    .dates { margin-top: 14px; gap: 10px; font-size: 13px; }
    .dates i { width: 18px; }
    .lead { margin-top: 26px; font-size: 14.5px; line-height: 1.95; }
    .how { grid-template-columns: 1fr; gap: 0; margin-top: 26px; padding-top: 0; border-top: 0; text-align: start; }
    .how li { flex-direction: row; align-items: center; gap: 16px; padding: 12px 2px; border-top: 1px solid rgba(255, 255, 255, 0.08); font-size: 13px; text-wrap: wrap; }
    .how li:last-child { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
    .how svg { flex: none; width: 22px; height: 22px; }
    .go { margin-top: auto; padding-top: 28px; }
    #enter { width: 100%; padding: 17px 20px; }
    .fallback { margin-top: 14px; }
}
@media (max-width: 600px) and (max-height: 700px) {
    #welcome .card { padding-top: calc(var(--safe-t) + 13svh); }
    .lead { margin-top: 20px; }
    .how { margin-top: 18px; }
    .how li { padding: 9px 2px; }
}

#fade { position: fixed; inset: 0; z-index: 25; background: var(--bg); opacity: 0; pointer-events: none; transition: opacity 0.28s ease; }
#fade.on { opacity: 1; }

@media (max-width: 760px) {
    #map { display: none; }
    #mapBtn { display: none; }
    #panel { left: 12px; right: 12px; width: auto; padding: 16px 18px 12px; }
    [dir="rtl"] #panel { left: 12px; }
    #panel-title { font-size: 19px; }
    #panel-credit { display: none; }
    #where { font-size: 13px; }
    #langs { right: 10px; left: 10px; min-width: 0; }
}

@media (prefers-reduced-motion: reduce) {
    #welcome, #fade, .chrome { transition: none; }
    #welcome .art, #welcome .card > *, #welcome .head > * { animation: none; }
    #langs { animation: none; }
}

/* scripts whose letters join must not be spaced apart */
:lang(ar) *, :lang(hi) * { letter-spacing: 0 !important; }