/* Lumen Atelier — the shared look of every page: ivory paper, ink, gilt hairlines, serif display type.
   Light by default, warm "lamp-lit" dark when the system asks for it. Used by index.html, privacy.html, the
   server-rendered galleries (functions/_html.js) and the admin. */
:root {
  --paper: #F5F0E6; --paper-2: #EDE5D5; --card: #FBF8F2; --mat: #E8DFCC;
  --ink: #1D1915; --ink-2: #463E35; --muted: #7A6F62; --rule: #D6C9B1; --rule-2: #E4DAC6;
  --gold: #94702F; --gold-2: #B38D45; --wine: #6E1F24; --on-ink: #F7F2E8;
  --shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 18px 40px -24px rgba(60,40,10,.35);
  --display: "Cormorant Garamond", "Noto Serif KR", "Nanum Myeongjo", Georgia, serif;
  --serif: "Noto Serif KR", "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", "Noto Serif KR", system-ui, -apple-system, sans-serif;
  --w: 1180px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #13100C; --paper-2: #1B1712; --card: #1A1611; --mat: #221D16;
    --ink: #EFE7D7; --ink-2: #D2C6B0; --muted: #A2957E; --rule: #3B3329; --rule-2: #2C261F;
    --gold: #C9A45C; --gold-2: #DDBB76; --wine: #D08080; --on-ink: #16120D;
    --shadow: 0 18px 40px -24px rgba(0,0,0,.8);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink); font: 400 16px/1.7 var(--sans); word-break: keep-all;
  overflow-wrap: anywhere; -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(1200px 600px at 50% -200px, rgba(179,141,69,.10), transparent 70%);
}
/* laid-paper grain over the whole page (drawn by the image model, scripts/site/backdrops.mjs) */
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: url(/assets/bg/paper-light.webp) center / 900px auto repeat; opacity: .45; mix-blend-mode: multiply; }
@media (prefers-color-scheme: dark) { body::before { background-image: url(/assets/bg/paper-dark.webp); opacity: .55; mix-blend-mode: normal; } }
.flourish { height: 54px; max-width: 440px; margin: 64px auto 0; background: url(/assets/bg/flourish.webp) center / contain no-repeat; opacity: .9; }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
img { max-width: 100%; }
::selection { background: var(--gold-2); color: var(--on-ink); }
.wrap { max-width: var(--w); margin: 0 auto; padding: 0 16px; }
.sc { font: 500 11.5px/1.4 var(--sans); letter-spacing: .18em; text-transform: uppercase; }
.it { font-family: var(--display); font-style: italic; }
.muted { color: var(--muted); }
.gold { color: var(--gold); }
/* bilingual pages: <html class="en"> shows English spans */
html:not(.en) body [lang="en"], html.en body [lang="ko"] { display: none !important; }

/* ---------------------------------------------------------------- masthead */
.utility { border-bottom: 1px solid var(--rule-2); color: var(--muted); }
.utility .wrap { display: flex; justify-content: space-between; align-items: center; gap: 12px; min-height: 36px; }
.utility button, .utility a { all: unset; cursor: pointer; } .utility a:hover, .utility button:hover { color: var(--ink); }
.masthead { text-align: center; padding: 26px 0 0; }
.wordmark { display: inline-block; text-decoration: none; font: 500 clamp(40px, 7vw, 64px)/1 var(--display); letter-spacing: .32em; margin-right: -.32em; }
.tagline { margin: 8px 0 18px; color: var(--ink-2); font: italic 400 17px/1.4 var(--display); }
.rules { border-top: 2px solid var(--ink); border-bottom: 1px solid var(--ink); height: 5px; }
.nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 4px 26px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
.nav a { text-decoration: none; color: var(--ink-2); padding: 2px 0; border-bottom: 1px solid transparent; }
.nav a:hover, .nav a.on { color: var(--ink); border-bottom-color: var(--gold); }

/* ---------------------------------------------------------------- type */
h1, h2, h3 { font-family: var(--display); font-weight: 500; letter-spacing: -.01em; color: var(--ink); }
:lang(ko) h1, :lang(ko) h2, h1:lang(ko), h2:lang(ko) { font-family: var(--serif); font-weight: 600; letter-spacing: -.02em; }
.display { font-size: clamp(38px, 6vw, 72px); line-height: 1.08; margin: 0; }
.lead { font-size: 17px; color: var(--ink-2); max-width: 60ch; }
.section { padding: 64px 0 8px; }
.section-head { display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: baseline; margin-bottom: 26px; }
.section-head .num { font: italic 500 22px/1 var(--display); color: var(--gold); }
.section-head h2 { margin: 0; font-size: clamp(26px, 3.4vw, 38px); line-height: 1.15; }
.section-head .more { white-space: nowrap; }
.section-head::after { content: ""; grid-column: 1 / -1; border-top: 1px solid var(--rule); margin-top: 6px; }
.ornament { height: 54px; max-width: 440px; margin: 64px auto 0; background: url(/assets/bg/flourish.webp) center / contain no-repeat; font-size: 0; color: transparent; }

/* ---------------------------------------------------------------- buttons & links */
.btn { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; cursor: pointer; border: 1px solid var(--ink);
  background: var(--ink); color: var(--on-ink); padding: 14px 22px; font: 500 12.5px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; transition: .2s; }
.btn:hover { background: transparent; color: var(--ink); }
.btn.ghost { background: transparent; color: var(--ink); } .btn.ghost:hover { background: var(--ink); color: var(--on-ink); }
.btn small { letter-spacing: .04em; text-transform: none; opacity: .75; font-size: 12px; }
.arrow-link { text-decoration: none; border-bottom: 1px solid var(--gold); padding-bottom: 2px; }
.arrow-link::after { content: " →"; color: var(--gold); }

/* ---------------------------------------------------------------- plates (framed artworks) */
.plates { display: grid; gap: 34px 26px; }
.plates.pc { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.plates.mo { grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); }
.plate { margin: 0; text-decoration: none; display: block; }
.plate .mat { display: block; background: var(--mat); padding: 10px; border: 1px solid var(--rule); box-shadow: var(--shadow); transition: transform .35s ease, box-shadow .35s ease; }
.plate:hover .mat { transform: translateY(-3px); }
.plate img { display: block; width: 100%; height: auto; background: var(--c, #ccc); outline: 1px solid rgba(0,0,0,.06); }
.plates.pc .plate img { aspect-ratio: 16/9; object-fit: cover; }
.plates.mo .plate img { aspect-ratio: 9/19.5; object-fit: cover; }
.plate figcaption, .plate .cap { display: block; padding: 12px 2px 0; }
.plate .no { display: block; color: var(--gold); }
.plate .t { display: block; font: 500 19px/1.3 var(--serif); margin-top: 4px; }
.plate .t:lang(en), html.en .plate .t { font-family: var(--display); font-size: 21px; font-style: italic; }
.plates.mo .plate .t { font-size: 16px; }

/* ---------------------------------------------------------------- chips / filters */
.filters { display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: baseline; padding: 14px 0 26px; border-bottom: 1px solid var(--rule-2); margin-bottom: 30px; }
.filters a { text-decoration: none; color: var(--muted); border-bottom: 1px solid transparent; }
.filters a.on, .filters a:hover { color: var(--ink); border-bottom-color: var(--gold); }
.filters .sep { color: var(--rule); }

/* ---------------------------------------------------------------- detail (museum label) */
.detail { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 48px; align-items: start; padding-top: 40px; }
.detail.mo { grid-template-columns: minmax(0, 420px) minmax(0, 1fr); justify-content: center; }
.detail .frame { background: var(--mat); padding: clamp(10px, 2vw, 22px); border: 1px solid var(--rule); box-shadow: var(--shadow); }
.detail .frame img { display: block; width: 100%; height: auto; background: var(--c, #ccc); }
.label h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.12; margin: 10px 0 4px; }
.label .en-title { font: italic 400 22px/1.3 var(--display); color: var(--ink-2); margin: 0 0 16px; }
.specs { border-top: 1px solid var(--ink); margin: 22px 0 0; }
.specs div { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--rule-2); font-size: 14.5px; }
.specs dt { color: var(--muted); } .specs dd { margin: 0; }
.swatch { display: inline-block; width: 14px; height: 14px; vertical-align: -2px; border: 1px solid var(--rule); margin-right: 8px; }
.downloads { margin: 26px 0 0; border-top: 1px solid var(--ink); }
.downloads a { display: grid; grid-template-columns: 1fr auto auto auto; gap: 14px; align-items: baseline; text-decoration: none; padding: 13px 2px; border-bottom: 1px solid var(--rule-2); }
.downloads a b { font: 500 18px/1.2 var(--serif); }
.downloads a:hover b { color: var(--gold); }
.downloads a::after { content: "↓"; color: var(--gold); }
.downloads a span { color: var(--muted); font-size: 13.5px; font-variant-numeric: tabular-nums; }
.downloads a.primary b::after { content: "  ·  추천"; font: 500 11px var(--sans); letter-spacing: .14em; color: var(--gold); }
html.en .downloads a.primary b::after, .downloads a.primary b:lang(en)::after { content: "  ·  recommended"; }
.howto { font-size: 13.5px; color: var(--muted); margin-top: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 8px; } .tags a { color: var(--muted); text-decoration: none; } .tags a:hover { color: var(--gold); }

/* ---------------------------------------------------------------- callout & cards */
.callout { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; margin: 56px 0 0; padding: 28px 30px; background: var(--card); border: 1px solid var(--rule); position: relative; }
.callout::before { content: ""; position: absolute; inset: 6px; border: 1px solid var(--rule-2); pointer-events: none; }
.callout h3 { margin: 0 0 4px; font-size: 26px; } .callout p { margin: 0; color: var(--ink-2); }
.card { background: var(--card); border: 1px solid var(--rule); padding: 22px; }

/* ---------------------------------------------------------------- forms */
.form { display: grid; gap: 16px; max-width: 640px; }
.form label { display: grid; gap: 6px; } .form label > span { color: var(--muted); }
.form input, .form select, .form textarea { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--rule); border-radius: 0; padding: 12px 14px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 1px solid var(--gold); border-color: var(--gold); }

/* ---------------------------------------------------------------- footer colophon */
.colophon { margin-top: 90px; border-top: 1px solid var(--ink); }
.colophon .rules { border-top: 0; }
.colophon .wrap { text-align: center; padding: 34px 16px 46px; color: var(--muted); }
.colophon .mark { font: 500 24px/1 var(--display); letter-spacing: .3em; color: var(--ink); margin-right: -.3em; }
.colophon nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px 22px; margin: 16px 0 12px; }
.colophon nav a { text-decoration: none; } .colophon nav a:hover { color: var(--ink); }
.colophon p { margin: 4px 0; font-size: 13px; }

@media (max-width: 860px) {
  .detail, .detail.mo { grid-template-columns: 1fr; gap: 28px; }
  .callout { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .plates.pc { grid-template-columns: 1fr; }
  .plates.mo { grid-template-columns: 1fr 1fr; gap: 26px 14px; }
  .nav { gap: 2px 16px; }
  .utility .hide-sm { display: none; }
  .section { padding-top: 46px; }
  .section-head { grid-template-columns: auto 1fr; } .section-head .more { grid-column: 1 / -1; }
}