/* Premium serialized e-book reader — shared stylesheet (academic-writing) */
@import url('https://fastly.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@500;600;700;800&family=Fraunces:ital,opsz,wght@0,9..144,500;0,9..144,600;1,9..144,500&display=swap');

:root{
  --acc:#2f66ad; --acc2:#3f83d0; --acc-ink:#234f86;
  --pg:#faf7f1; --pg2:#f3eee4; --card:#fffdf9; --ink:#22262d; --ink-2:#474d59; --ink-3:#8b8f9b;
  --line:#e9e2d4; --line-2:#ded6c4; --tint:#e7eff9;
  --ser:"Noto Serif KR",Georgia,serif; --disp:"Fraunces","Noto Serif KR",Georgia,serif;
  --san:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans KR",sans-serif;
  --fs:19px; --lh:1.9; --measure:43rem;
  --sh-1:0 1px 2px rgba(40,36,28,.05); --sh-2:0 2px 6px rgba(40,36,28,.06),0 14px 40px rgba(40,36,28,.08);
  --rad:16px;
}
html[data-theme="sepia"]{--pg:#f2e8d2;--pg2:#ece0c6;--card:#f8f0dc;--ink:#3b3121;--ink-2:#5b4d37;--ink-3:#9a8a6a;--line:#e2d4b6;--line-2:#d6c6a4;--tint:#efe4c6;}
html[data-theme="dark"]{--pg:#12151a;--pg2:#0e1116;--card:#1a1e25;--ink:#e8eaef;--ink-2:#b7bdc9;--ink-3:#7e8695;--line:#2a2f39;--line-2:#353b46;--tint:#1f242d;--card:#1a1e25;--sh-1:0 1px 2px rgba(0,0,0,.35);--sh-2:0 2px 8px rgba(0,0,0,.4),0 16px 44px rgba(0,0,0,.5);}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:radial-gradient(120% 60% at 50% -10%,var(--pg2),var(--pg) 60%);min-height:100vh;color:var(--ink);font-family:var(--san);font-size:var(--fs);line-height:var(--lh);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background .35s,color .35s;overflow-x:hidden}
.wrap{max-width:var(--measure);margin:0 auto;padding-left:clamp(1.1rem,5vw,1.5rem);padding-right:clamp(1.1rem,5vw,1.5rem)}
a{color:var(--acc-ink)}

/* progress bar */
.pbar{position:fixed;top:0;left:0;right:0;height:3px;background:transparent;z-index:60}
.pbar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--acc),var(--acc2));box-shadow:0 0 8px color-mix(in srgb,var(--acc) 55%,transparent);transition:width .12s ease-out}

/* top bar */
.bar{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--pg) 86%,transparent);backdrop-filter:saturate(1.5) blur(12px);-webkit-backdrop-filter:saturate(1.5) blur(12px);border-bottom:1px solid var(--line)}
.bar__in{display:flex;align-items:center;gap:.5rem;height:56px;max-width:64rem}
.bar__home{font-family:var(--ser);font-weight:700;font-size:1rem;letter-spacing:-.01em;color:var(--ink);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(50vw,26rem)}
.bar__home:hover{color:var(--acc-ink)}
.bar__right{margin-left:auto;display:flex;align-items:center;gap:.4rem}
.bar__n{font-size:.8rem;color:var(--ink-3);font-variant-numeric:tabular-nums;letter-spacing:.02em;white-space:nowrap;margin-right:.2rem}
.tgl,.iconbtn{width:38px;height:38px;display:inline-grid;place-items:center;border:1px solid var(--line-2);background:var(--card);color:var(--ink-2);border-radius:11px;cursor:pointer;font-size:.98rem;font-family:var(--san);line-height:1;transition:.15s;padding:0}
.tgl:hover,.iconbtn:hover{border-color:var(--acc);color:var(--acc-ink);transform:translateY(-1px)}
.iconbtn.sm{width:34px;height:34px;font-size:.82rem;font-weight:700}

/* ===== COVER (index) ===== */
.cover{text-align:center;padding:clamp(2.2rem,7vw,4.5rem) 0 1.5rem;position:relative}
.cover::before{content:"";position:absolute;top:8%;left:50%;transform:translateX(-50%);width:min(90%,40rem);height:60%;background:radial-gradient(60% 80% at 50% 0,color-mix(in srgb,var(--acc) 12%,transparent),transparent 70%);z-index:-1}
.cover__badge{display:inline-flex;align-items:center;gap:.5rem;font-size:.74rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--acc-ink);background:var(--card);border:1px solid var(--line-2);padding:.4rem .9rem;border-radius:999px;box-shadow:var(--sh-1)}
.cover__badge::before{content:"◈"}
.cover h1{font-family:var(--disp);font-weight:600;font-size:clamp(2.1rem,6.5vw,3.4rem);line-height:1.14;letter-spacing:-.025em;margin:1.2rem auto .7rem;max-width:22ch}
.cover .sub{font-size:1.04rem;line-height:1.7;color:var(--ink-2);max-width:34rem;margin:0 auto 1.3rem}
.cover .by{font-family:var(--ser);font-size:1.02rem;color:var(--ink);margin:.2rem 0}
.cover .go{display:inline-flex;align-items:center;gap:.55rem;margin-top:1.6rem;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;text-decoration:none;font-weight:700;font-size:1.02rem;padding:.9rem 1.9rem;border-radius:999px;box-shadow:0 8px 26px color-mix(in srgb,var(--acc) 40%,transparent);transition:.18s}
.cover .go::after{content:"→";transition:.18s}
.cover .go:hover{transform:translateY(-2px)}.cover .go:hover::after{transform:translateX(3px)}
.stats{display:flex;justify-content:center;gap:0;margin:2.4rem auto 0;max-width:30rem;background:var(--card);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sh-2)}
.stats>div{flex:1;padding:1.1rem .4rem;border-right:1px solid var(--line);font-size:.78rem;color:var(--ink-3)}
.stats>div:last-child{border-right:0}
.stats b{display:block;font-family:var(--disp);font-weight:600;font-size:1.65rem;color:var(--acc-ink);line-height:1;margin-bottom:.28rem}

/* ===== TOC ===== */
.toc{padding:1rem 0 4rem}
.toc>.wrap>h2{font-family:var(--san);font-size:.8rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);text-align:center;margin:2rem 0 .2rem}
.toc .cnt{text-align:center;color:var(--ink-3);font-size:.86rem;margin:0 0 1.6rem}
.toc .pt{font-family:var(--ser);font-weight:700;font-size:1.12rem;color:var(--ink);margin:2.2rem 0 .4rem;padding-bottom:.55rem;border-bottom:2px solid var(--line);letter-spacing:-.01em}
.toc .ep{display:flex;gap:1.1rem;align-items:flex-start;padding:1.15rem .4rem;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;transition:.16s;border-radius:12px}
.toc .ep:hover{background:var(--card);padding-left:1rem;padding-right:1rem;border-bottom-color:transparent;box-shadow:var(--sh-1)}
.toc .ep__n{font-family:var(--disp);font-weight:600;font-size:1.5rem;color:var(--acc-ink);min-width:1.7em;line-height:1.1;font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.toc .ep__t{font-family:var(--ser);font-weight:700;font-size:1.08rem;color:var(--ink);line-height:1.4;margin:.1rem 0 .3rem}
.toc .ep__p{font-size:.9rem;color:var(--ink-3);line-height:1.6;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.toc .ep:hover .ep__t{color:var(--acc-ink)}

/* ===== ARTICLE ===== */
.art{padding:clamp(1.4rem,4vw,2.6rem) 0 2rem}
.art .wrap{max-width:var(--measure)}
.art__meta{font-family:var(--san);font-size:.76rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--acc-ink);margin:0 0 .7rem}
.art h1{font-family:var(--disp);font-weight:600;font-size:clamp(1.7rem,4.8vw,2.55rem);line-height:1.2;letter-spacing:-.02em;margin:.1rem 0 1rem}
.art__rt{display:inline-flex;align-items:center;gap:.4rem;font-size:.8rem;color:var(--ink-3);margin:0 0 1.8rem;font-family:var(--san)}
.art__rt::before{content:"◷";color:var(--acc-ink)}
.art__purpose{background:var(--tint);border-radius:14px;padding:1rem 1.2rem;font-size:.98rem;color:var(--ink-2);margin:1.2rem 0 1.6rem;border-left:3px solid var(--acc)}
.art__purpose b{color:var(--ink)}

.prose,.art>.wrap>h2,.art>.wrap>p,.art>.wrap>ul,.art>.wrap>ol{}
.prose{margin:0}
.art>.wrap>h2,.prose>h2{font-family:var(--ser);font-weight:700;font-size:1.4rem;line-height:1.32;letter-spacing:-.01em;color:var(--ink);margin:2.5rem 0 .5rem;scroll-margin-top:74px}
.art>.wrap>h2::before,.prose>h2::before{content:"";display:block;width:36px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--acc),var(--acc2));margin-bottom:.75rem}
.art>.wrap>h3,.prose>h3{font-family:var(--san);font-weight:700;font-size:1.1rem;color:var(--ink);margin:1.8rem 0 .5rem}
.art p,.prose p{margin:1.05em 0;color:var(--ink);word-break:keep-all;overflow-wrap:break-word}
.art .wrap>p:first-of-type{margin-top:0}
.art ul,.art ol,.prose ul,.prose ol{margin:1.05em 0;padding-left:1.4em}
.art li,.prose li{margin:.45em 0}
.art strong,.prose strong{font-weight:700}
.art em,.prose em{font-style:italic}

/* ===== BOXES (English generic + Korean variants) ===== */
.box{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--acc);border-radius:var(--rad);padding:1.15rem 1.35rem;margin:1.7rem 0;box-shadow:var(--sh-2)}
.box>h3{font-family:var(--san);font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--acc-ink);margin:0 0 .7rem;display:flex;align-items:center;gap:.5rem}
.box>h3::before{content:"";width:1.35em;height:1.35em;border-radius:7px;background:var(--tint);display:inline-grid;place-items:center;flex:none}
.box>ul,.box>ol{margin:.2rem 0 0;padding-left:1.3em}
.box>ul>li,.box>ol>li{margin:.42em 0;color:var(--ink-2)}
.box p{color:var(--ink-2);font-size:.97rem}
.box p:first-of-type{margin-top:0}.box p:last-child{margin-bottom:0}
.box .nt{margin-top:.7rem;padding-top:.6rem;border-top:1px dashed var(--line-2);font-size:.82rem;color:var(--ink-3)}

/* Korean intro_q / objectives / reflection */
.box--intro_q,.box--objectives,.box--reflection{background:var(--card);border:1px solid var(--line);border-radius:var(--rad);padding:1.15rem 1.35rem;margin:1.7rem 0;box-shadow:var(--sh-2);border-left:4px solid var(--acc)}
.box--intro_q{border-left-color:#5566c9}
.box--reflection{border-left-color:#c98a2b;border-style:solid}
.box__t{font-family:var(--san);font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--acc-ink);margin:0 0 .65rem;display:flex;align-items:center;gap:.5rem}
.box--intro_q .box__t{color:#5566c9}
.box--reflection .box__t{color:#b5701d}
.box__t::before{font-size:1em}
.box--intro_q .box__t::before{content:"?"}
.box--objectives .box__t::before{content:"◎"}
.box--reflection .box__t::before{content:"✺"}
.box__l{margin:0;padding-left:1.3em}
.box__l li{margin:.45em 0;color:var(--ink-2)}
.box--reflection .box__l li{margin:.55em 0}

/* chips (key terms) */
.chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.3rem}
.chip{font-family:var(--san);font-size:.82rem;font-weight:600;color:var(--acc-ink);background:var(--tint);border:1px solid color-mix(in srgb,var(--acc) 24%,transparent);padding:.28rem .7rem;border-radius:999px}

/* interactive checklist (English .cl/.ckx) */
.cl{list-style:none;margin:.2rem 0 0;padding:0}
.cl li{margin:.2rem 0}
.cl label{display:flex;gap:.65rem;align-items:flex-start;padding:.45rem .55rem;border-radius:9px;cursor:pointer;color:var(--ink-2);font-size:.96rem;transition:.14s}
.cl label:hover{background:var(--tint)}
.cl .ckx{margin-top:.3em;width:1.1em;height:1.1em;accent-color:var(--acc);flex:none;cursor:pointer}
.cl .ckx:checked+span{color:var(--ink-3);text-decoration:line-through}
.ck-meter{display:flex;align-items:center;gap:.7rem;margin-top:.7rem;padding-top:.65rem;border-top:1px solid var(--line)}
.ck-meter i{flex:1;height:6px;border-radius:3px;background:var(--tint);overflow:hidden;position:relative}
.ck-meter i::after{content:"";position:absolute;inset:0;width:var(--p,0%);background:linear-gradient(90deg,var(--acc),var(--acc2));transition:width .3s}
.ck-meter em{font-style:normal;font-size:.78rem;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* ===== prev / next ===== */
.nx{padding:1.5rem 0 1rem}
.nx .wrap{max-width:var(--measure);display:grid;gap:.8rem;grid-template-columns:1fr}
.nx a[data-next],.nx a[data-prev]{display:flex;flex-direction:column;gap:.2rem;padding:1.05rem 1.2rem;background:var(--card);border:1px solid var(--line);border-radius:14px;text-decoration:none;box-shadow:var(--sh-1);transition:.16s}
.nx a[data-next]:hover,.nx a[data-prev]:hover{border-color:var(--acc);transform:translateY(-2px);box-shadow:var(--sh-2)}
.nx a[data-next] span,.nx a[data-prev] span{font-size:.76rem;font-weight:700;color:var(--ink-3);letter-spacing:.03em}
.nx a[data-next] b,.nx a[data-prev] b{font-family:var(--ser);font-weight:700;font-size:1rem;color:var(--ink);line-height:1.35}
.nx a[data-next]:hover b,.nx a[data-prev]:hover b{color:var(--acc-ink)}
.nx a[data-next]{text-align:right}
.nx .home{grid-column:1/-1;text-align:center;margin:1rem 0 0}
.nx .home a{display:inline-flex;align-items:center;gap:.4rem;padding:.6rem 1.2rem;border:1px solid var(--line-2);border-radius:999px;color:var(--ink-2);text-decoration:none;font-size:.88rem;background:var(--card)}
.nx .home a::before{content:"☰"}
.nx .home a:hover{border-color:var(--acc);color:var(--acc-ink)}

/* ===== footer ===== */
.foot{border-top:1px solid var(--line);margin-top:2rem;padding:2.2rem 0 3.5rem;text-align:center;color:var(--ink-3);font-size:.84rem;line-height:1.7}
.foot b{color:var(--ink-2)}
.foot .wrap p{margin:.15rem 0}

/* ===== injected: TOC drawer + FAB ===== */
.scrim{position:fixed;inset:0;background:rgba(20,18,14,.46);opacity:0;visibility:hidden;transition:.25s;z-index:70}
.scrim.on{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;left:0;height:100%;width:min(87vw,354px);background:var(--card);border-right:1px solid var(--line);transform:translateX(-103%);transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:80;display:flex;flex-direction:column;box-shadow:var(--sh-2)}
.drawer.on{transform:none}
.drawer__h{padding:1.15rem 1.25rem .8rem;border-bottom:1px solid var(--line)}
.drawer__h b{font-family:var(--ser);font-weight:700;font-size:1rem;color:var(--ink);display:block;line-height:1.35}
.drawer__h span{font-size:.78rem;color:var(--ink-3)}
.drawer__l{overflow-y:auto;padding:.5rem .5rem 2.5rem;flex:1}
.drawer__pt{font-size:.68rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--acc-ink);padding:.9rem .75rem .3rem}
.drawer__e{display:flex;gap:.6rem;align-items:baseline;padding:.5rem .75rem;border-radius:9px;text-decoration:none;color:var(--ink-2);font-size:.9rem;line-height:1.45}
.drawer__e:hover{background:var(--tint)}
.drawer__e .n{font-variant-numeric:tabular-nums;color:var(--ink-3);font-size:.8rem;min-width:1.7em}
.drawer__e.cur{background:var(--tint);color:var(--ink);font-weight:600}
.drawer__e.cur .n{color:var(--acc-ink)}
.fab{position:fixed;right:1rem;bottom:1rem;width:46px;height:46px;border-radius:50%;background:var(--card);border:1px solid var(--line-2);color:var(--ink-2);display:grid;place-items:center;cursor:pointer;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transition:.2s;z-index:40;font-size:1.1rem}
.fab.on{opacity:1;visibility:visible}
.fab:hover{color:var(--acc-ink);border-color:var(--acc);transform:translateY(-2px)}

@media(min-width:640px){.nx .wrap{grid-template-columns:1fr 1fr}.nx .home{}}
@media(max-width:520px){.bar__home{max-width:42vw}.bar__n{display:none}}
@media print{.bar,.pbar,.drawer,.scrim,.fab,.nx{display:none!important}body{background:#fff}.box,.cl,.stats{break-inside:avoid}.art h2{break-after:avoid}}

/* ===================== ePub / paged (page-flip) mode ===================== */
html.paged, html.paged body{height:100%;max-height:100vh;overflow:hidden}
html.paged .fab{display:none!important}
html.paged .foot{display:none}
html.paged .art{position:fixed;left:0;right:0;top:56px;bottom:46px;padding:0;margin:0;overflow:hidden;background:var(--pg)}
html.paged .book-stage{position:absolute;top:0;left:0;height:100%;margin:0;max-width:none;box-sizing:border-box;column-fill:auto;transition:transform .44s cubic-bezier(.22,.61,.36,1);will-change:transform;font-size:var(--fs)}
html.paged .book-stage.noanim{transition:none}
html.paged .art__meta{margin-top:.2rem}
/* keep large blocks whole where possible */
html.paged .callout,html.paged .box,html.paged .box--intro_q,html.paged .box--objectives,html.paged .box--reflection,html.paged .keybox,html.paged .lead,html.paged .obj{break-inside:avoid}
html.paged figure.tbl{overflow:hidden;break-inside:auto;box-shadow:none}
html.paged figure.tbl table{font-size:.8rem}
html.paged figure.tbl th{white-space:normal}
html.paged figure.tbl tr{break-inside:avoid}
html.paged .art>.book-stage>h1{break-after:avoid}
html.paged .art h2,html.paged .prose h2,html.paged .art>.wrap>h2{break-after:avoid}
/* spine shadow (spread only) */
.book-spine{position:fixed;top:56px;bottom:46px;left:50%;width:74px;transform:translateX(-50%);pointer-events:none;z-index:5;opacity:.55;display:none;background:radial-gradient(ellipse 60% 100% at center, color-mix(in srgb,var(--ink) 13%,transparent), transparent 70%)}
html.paged.spread .book-spine{display:block}
/* turn zones */
.turn-zone{position:fixed;top:56px;bottom:46px;width:12%;z-index:6;cursor:pointer;transition:background .15s}
.turn-zone.prev{left:0}.turn-zone.next{right:0}
.turn-zone.prev:hover{background:linear-gradient(to right, color-mix(in srgb,var(--acc) 9%,transparent), transparent)}
.turn-zone.next:hover{background:linear-gradient(to left, color-mix(in srgb,var(--acc) 9%,transparent), transparent)}
.turn-zone.off{opacity:.3;pointer-events:none}
/* pager bar */
.pager-bar{position:fixed;left:0;right:0;bottom:0;height:46px;display:none;align-items:center;justify-content:center;gap:.9rem;background:color-mix(in srgb,var(--pg) 90%,transparent);backdrop-filter:saturate(1.3) blur(10px);-webkit-backdrop-filter:saturate(1.3) blur(10px);border-top:1px solid var(--line);z-index:7}
html.paged .pager-bar{display:flex}
.pager-bar button{width:34px;height:34px;border:1px solid var(--line-2);background:var(--card);color:var(--ink-2);border-radius:9px;cursor:pointer;font-size:1rem;line-height:1;display:grid;place-items:center;transition:.15s}
.pager-bar button:hover:not(:disabled){border-color:var(--acc);color:var(--acc-ink)}
.pager-bar button:disabled{opacity:.32;cursor:default}
.pager-bar .pgnum{font-family:var(--san);font-size:.82rem;color:var(--ink-3);font-variant-numeric:tabular-nums;min-width:6.5em;text-align:center}
.pager-bar .pgnum b{color:var(--ink);font-weight:700}
/* scroll mode hides paged chrome */
html.scroll .pager-bar,html.scroll .book-spine,html.scroll .turn-zone{display:none!important}
/* mode toggle active state */
.iconbtn.mode-on{border-color:var(--acc);color:var(--acc-ink);background:var(--tint)}
@media print{.book-spine,.turn-zone,.pager-bar{display:none!important}html.paged,html.paged body{overflow:visible;height:auto}html.paged .art{position:static}html.paged .book-stage{position:static;column-width:auto!important;column-count:1!important;transform:none!important;height:auto!important}}

html.paged .bar{position:fixed;top:0;left:0;right:0;z-index:50}

/* ===================== ePub book frame (open-book look) ===================== */
html.paged .art{background:radial-gradient(135% 130% at 50% -12%, var(--pg2), var(--pg) 62%);perspective:2400px}
.leaf{position:absolute;top:0;background:var(--card);border-radius:6px;box-shadow:0 12px 34px rgba(40,36,28,.17),0 2px 7px rgba(40,36,28,.10);z-index:1;pointer-events:none;display:none}
html.paged .leaf{display:block}
html.scroll .leaf,html.scroll .book-gutter,html.scroll .turn-shade{display:none!important}
html.paged.spread .leaf.l{border-top-right-radius:2px;border-bottom-right-radius:2px}
html.paged.spread .leaf.r{border-top-left-radius:2px;border-bottom-left-radius:2px}
html.paged:not(.spread) .leaf.r{display:none}
[data-theme=dark] .leaf{box-shadow:0 12px 34px rgba(0,0,0,.55),0 2px 7px rgba(0,0,0,.42)}
.leaf::after{content:"";position:absolute;top:0;bottom:0;width:22px;pointer-events:none}
html.paged.spread .leaf.l::after{right:0;background:linear-gradient(90deg,transparent,rgba(40,36,28,.10))}
html.paged.spread .leaf.r::after{left:0;background:linear-gradient(270deg,transparent,rgba(40,36,28,.10))}
.book-gutter{position:absolute;top:0;bottom:0;z-index:2;pointer-events:none;display:none;background:linear-gradient(90deg,transparent,rgba(40,36,28,.14) 42%,rgba(40,36,28,.16) 50%,rgba(40,36,28,.14) 58%,transparent)}
html.paged.spread .book-gutter{display:block}
[data-theme=dark] .book-gutter{background:linear-gradient(90deg,transparent,rgba(0,0,0,.45) 42%,rgba(0,0,0,.5) 50%,rgba(0,0,0,.45) 58%,transparent)}
html.paged .book-stage{z-index:3;background:transparent}
/* page-turn light sweep */
.turn-shade{position:absolute;top:0;bottom:0;left:0;right:0;z-index:4;pointer-events:none;opacity:0}
html.paged.turn-next .turn-shade{opacity:1;background:linear-gradient(90deg,rgba(40,36,28,.20),transparent 24%);animation:sweepN .46s ease forwards}
html.paged.turn-prev .turn-shade{opacity:1;background:linear-gradient(270deg,rgba(40,36,28,.20),transparent 24%);animation:sweepP .46s ease forwards}
@keyframes sweepN{from{transform:translateX(-45%)}to{transform:translateX(125%)}}
@keyframes sweepP{from{transform:translateX(45%)}to{transform:translateX(-125%)}}

/* Hallmark redesign · macrostructure: Long Document + Editorial Index
 * enrichment: E5 custom SVG argument map · polish: HP4 decorative numeral (16 chapters)
 * theme: Newsprint / Almanac · accent: oxblood · studied: Nutlope/hallmark
 */

:root{
  --acc:#8d2f23;--acc2:#b34a35;--acc-ink:#77271e;
  --pg:#f4edde;--pg2:#e9dfcc;--card:#fbf6eb;--ink:#1c1b18;--ink-2:#454138;--ink-3:#756e61;
  --line:#d7cbb5;--line-2:#bfb19a;--tint:#ead9ca;
  --ser:"Noto Serif KR",Georgia,"Times New Roman",serif;
  --disp:"Fraunces","Noto Serif KR",Georgia,serif;
  --san:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans KR",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --measure:46rem;--rad:2px;
  --sh-1:0 1px 0 rgba(28,27,24,.06);--sh-2:0 18px 44px rgba(59,45,24,.11);
}
html[data-theme="sepia"]{--pg:#ecdfc5;--pg2:#dfcfb0;--card:#f5ead2;--ink:#332b20;--ink-2:#514638;--ink-3:#7b6c58;--line:#cfbd9c;--line-2:#b9a583;--tint:#e3cfb5;}
html[data-theme="dark"]{--acc:#ee8d75;--acc2:#f1a08b;--acc-ink:#f0a28e;--pg:#181714;--pg2:#11100e;--card:#211f1a;--ink:#f0eadf;--ink-2:#cbc2b4;--ink-3:#958c7e;--line:#39352e;--line-2:#514a3f;--tint:#30231f;}
html,body{overflow-x:clip}
body{background:var(--pg);background-image:linear-gradient(90deg,rgba(82,62,30,.025) 1px,transparent 1px),linear-gradient(rgba(82,62,30,.02) 1px,transparent 1px);background-size:28px 28px;color:var(--ink)}
a:focus-visible,button:focus-visible{outline:3px solid var(--acc);outline-offset:3px}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:100;background:var(--ink);color:var(--pg);padding:.7rem 1rem;font:700 .8rem/1 var(--san);text-decoration:none}
.skip-link:focus{top:1rem}
.bar{background:color-mix(in srgb,var(--pg) 92%,transparent);border-color:var(--ink)}
.bar__in{max-width:92rem;height:62px;padding-inline:clamp(1rem,4vw,4rem)}
.bar__home{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;max-width:none}
.bar__nav{display:flex;gap:1.4rem;margin-left:auto;font:700 .7rem/1 var(--mono);text-transform:uppercase;letter-spacing:.08em}
.bar__nav a{color:var(--ink-2);text-decoration:none;border-bottom:1px solid transparent;padding:.35rem 0}
.bar__nav a:hover{color:var(--acc-ink);border-color:currentColor}
.bar__right{margin-left:0}.bar__n{font-family:var(--mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em}
.tgl,.iconbtn{border-radius:50%;background:transparent;border-color:var(--line-2);box-shadow:none}
.tgl:hover,.iconbtn:hover{background:var(--ink);border-color:var(--ink);color:var(--pg);transform:none}
.pbar{height:2px}.pbar>i{background:var(--acc);box-shadow:none}

/* Index — asymmetric editorial cover */
.book-index{--measure:92rem}
.cover--editorial{text-align:left;padding:0;border-bottom:1px solid var(--ink);min-height:clamp(620px,78dvh,820px);display:grid;align-items:stretch;position:relative;overflow:hidden}
.cover--editorial::before{display:none}
.cover__grid{width:100%;max-width:92rem;margin:0 auto;padding:clamp(2.5rem,7vw,6.5rem) clamp(1rem,4vw,4rem) clamp(4rem,9vw,8rem);display:grid;grid-template-columns:auto minmax(0,1.06fr) minmax(310px,.74fr);gap:clamp(1.5rem,5vw,5.5rem);align-items:center;position:relative}
.cover__rail{align-self:stretch;writing-mode:vertical-rl;text-orientation:mixed;margin:0;font:700 .65rem/1 var(--mono);letter-spacing:.2em;color:var(--ink-3);border-left:1px solid var(--line-2);padding-left:.9rem}
.cover__copy{position:relative;z-index:2}
.cover__badge{display:inline-block;border:0;border-radius:0;background:transparent;box-shadow:none;padding:0 0 .65rem;font:700 .72rem/1 var(--mono);letter-spacing:.13em;color:var(--acc-ink);border-bottom:2px solid var(--acc)}
.cover__badge::before{display:none}
.cover h1{font-family:var(--disp);font-weight:600;font-size:clamp(3.25rem,7.2vw,7.8rem);line-height:.88;letter-spacing:-.055em;margin:clamp(2rem,5vw,4.5rem) 0 1.6rem;max-width:8.5ch}
.cover h1 em{font-weight:500;color:var(--acc);font-size:.66em;letter-spacing:-.03em}
.cover .sub{font-family:var(--ser);font-size:clamp(1.05rem,1.6vw,1.35rem);line-height:1.55;color:var(--ink-2);max-width:38rem;margin:0 0 1.1rem}
.cover .by{font:700 .78rem/1.5 var(--mono);color:var(--ink);margin:0;text-transform:uppercase;letter-spacing:.06em}
.cover .by span{color:var(--ink-3)}
.cover__actions{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;margin-top:2.2rem}
.cover .go,.index-cta .go{display:inline-flex;align-items:center;gap:.7rem;margin:0;background:var(--ink);color:var(--pg);border:1px solid var(--ink);border-radius:0;box-shadow:none;padding:.85rem 1.2rem;font:700 .76rem/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;transition:background .16s,color .16s}
.cover .go::after,.index-cta .go::after{content:"→"}.cover .go:hover,.index-cta .go:hover{transform:none;background:var(--acc);border-color:var(--acc);color:#fff}
.text-link{font:700 .72rem/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--ink);padding:.35rem 0}
.text-link:hover{color:var(--acc-ink);border-color:var(--acc)}
.cover__plate{margin:0;align-self:center;position:relative;z-index:2;transform:rotate(1.15deg)}
.cover__plate svg{display:block;width:min(100%,450px);margin:auto;filter:drop-shadow(18px 24px 22px rgba(54,40,22,.15))}
.cover__plate figcaption{font:700 .62rem/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:.8rem auto 0;max-width:450px}
.plate-paper{fill:var(--card);stroke:var(--ink);stroke-width:2}.plate-fold{fill:none;stroke:var(--ink);stroke-width:2}.plate-kicker,.plate-caption{font:700 12px var(--mono);letter-spacing:1.4px;fill:var(--acc-ink)}.plate-title{font:600 25px var(--disp);letter-spacing:-.3px;fill:var(--ink)}.plate-rule{stroke:var(--ink);stroke-width:2}.plate-map circle{fill:none;stroke:var(--acc);stroke-width:3}.plate-map path{fill:none;stroke:var(--ink);stroke-width:2;stroke-dasharray:5 5}.plate-map text{text-anchor:middle;font:700 14px var(--mono);fill:var(--ink)}.plate-map .plate-loop{stroke:var(--acc)}.plate-legend text{font:700 11px var(--mono);letter-spacing:.8px;fill:var(--ink-2)}
.cover__num{position:absolute;right:clamp(.5rem,2vw,2rem);bottom:-.22em;font:italic 600 clamp(10rem,25vw,26rem)/.8 var(--disp);letter-spacing:-.08em;color:color-mix(in srgb,var(--ink) 5%,transparent);pointer-events:none;user-select:none}

/* Index — long-document bands */
.index-band{border-bottom:1px solid var(--ink);padding:clamp(4rem,8vw,8rem) 0;background:color-mix(in srgb,var(--pg) 92%,transparent)}
.index-band:nth-of-type(odd){background:var(--card)}
.index-wrap{max-width:92rem;margin:0 auto;padding:0 clamp(1rem,4vw,4rem);display:grid;grid-template-columns:minmax(145px,.33fr) minmax(0,1.67fr);gap:clamp(2rem,6vw,7rem)}
.section-label{display:flex;gap:.8rem;align-items:flex-start;font:700 .7rem/1.4 var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--ink-3)}
.section-label>span{color:var(--acc-ink)}.section-label p{margin:0}.section-label small{display:block;margin-top:.45rem;font:400 .66rem/1.45 var(--mono);text-transform:none;letter-spacing:0}
.about-copy{max-width:64rem}.about-copy>.lede{font-family:var(--disp);font-size:clamp(1.8rem,3.2vw,3.25rem);line-height:1.16;letter-spacing:-.025em;color:var(--ink);margin:0 0 2.5rem;max-width:28ch}.about-copy>p:not(.lede){font-family:var(--ser);font-size:1.03rem;line-height:1.85;color:var(--ink-2);max-width:65ch;margin:0 0 1.2rem}
.stats{display:grid;grid-template-columns:repeat(3,1fr);justify-content:initial;gap:0;margin:3rem 0 0;max-width:48rem;background:transparent;border:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);border-radius:0;overflow:visible;box-shadow:none}
.stats>div{display:grid;grid-template-rows:auto 1fr;gap:.75rem;padding:1rem;border-right:1px solid var(--line-2);font:700 .64rem/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}.stats>div:first-child{padding-left:0}.stats>div:last-child{border-right:0}.stats dt{order:0}.stats dd{order:1;margin:0}.stats b{display:inline;font:600 clamp(2.5rem,5vw,4.6rem)/.85 var(--disp);color:var(--ink);letter-spacing:-.05em}.stats span{font:400 .7rem var(--mono);color:var(--ink-3);margin-left:.3rem}
.toc{padding:clamp(4rem,8vw,8rem) 0}.toc>.index-wrap>h2{display:none}.toc__body>h2{font:600 clamp(2rem,4vw,4.2rem)/1.05 var(--disp);letter-spacing:-.035em;max-width:21ch;margin:0 0 clamp(4rem,7vw,7rem)}
.toc-part{display:grid;grid-template-columns:minmax(190px,.54fr) minmax(0,1.46fr);gap:clamp(2rem,5vw,5rem);border-top:2px solid var(--ink);padding:1.2rem 0 3.5rem}
.toc-part>header{position:sticky;top:86px;align-self:start}.toc .pt{font:700 .74rem/1.45 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--acc-ink);margin:0 0 .85rem;padding:0;border:0}.toc-part>header>p:last-child{font-family:var(--ser);font-size:.92rem;line-height:1.6;color:var(--ink-3);margin:0;max-width:29ch}
.toc .ep{display:grid;grid-template-columns:3rem minmax(0,1fr) auto;gap:1rem;align-items:start;padding:1.2rem 0;border-bottom:1px solid var(--line-2);border-radius:0;transition:color .16s,transform .16s}
.toc .ep:first-child{padding-top:0}.toc .ep:hover{background:transparent;padding-left:0;padding-right:0;border-bottom-color:var(--ink);box-shadow:none;transform:translateX(.35rem)}
.toc .ep__n{font:600 1.55rem/1 var(--disp);color:var(--acc-ink);min-width:0}.toc .ep__t{font:600 1.14rem/1.35 var(--ser);margin:0 0 .35rem}.toc .ep__p{font:400 .82rem/1.55 var(--san);color:var(--ink-3);margin:0;display:block;overflow:visible}.toc .ep__arrow{font:400 1rem/1 var(--mono);color:var(--ink-3);transition:color .16s}.toc .ep:hover .ep__arrow,.toc .ep:hover .ep__t{color:var(--acc-ink)}
.index-cta{background:var(--acc)!important;color:#fff}.index-cta .section-label,.index-cta .section-label>span{color:#f2c9bd}.index-cta__quote{font:italic 500 clamp(2rem,5vw,5rem)/1.08 var(--disp);letter-spacing:-.035em;margin:0 0 2.5rem;max-width:20ch}.index-cta .go{background:#fff;color:var(--acc-ink);border-color:#fff}.index-cta .go:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.foot--index{margin:0;text-align:left;background:var(--ink);color:#aaa294;border:0}.foot--index .index-wrap{grid-template-columns:1.3fr 1fr 1fr;gap:2rem}.foot--index b{color:var(--pg)}.foot--index p{margin:0;font:400 .72rem/1.75 var(--mono)}

/* Chapter pages — quieter, print-led reading system */
.art{padding:clamp(2.2rem,6vw,5.5rem) 0 3rem}.art .wrap{max-width:46rem}.art__meta{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;color:var(--acc-ink)}
.art h1{font-family:var(--disp);font-size:clamp(2.4rem,6vw,4.6rem);line-height:1.02;letter-spacing:-.045em;margin:.7rem 0 1rem}
.art__rt{font-family:var(--mono);font-size:.68rem}.art__purpose{background:transparent;border:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);border-radius:0;padding:1.1rem 0;font-family:var(--ser);font-size:1rem;line-height:1.7}
.art>.wrap>h2,.prose>h2{font-family:var(--disp);font-size:1.55rem;font-weight:600;margin:3.3rem 0 .8rem}.art>.wrap>h2::before,.prose>h2::before{width:2rem;height:2px;border-radius:0;background:var(--acc);margin-bottom:.85rem}
.art p,.prose p{font-family:var(--ser);line-height:1.88;color:var(--ink-2)}
.box,.box--intro_q,.box--objectives,.box--reflection{background:transparent;border:1px solid var(--line-2);border-left:3px solid var(--acc);border-radius:0;box-shadow:none;padding:1.25rem 1.35rem;margin:2rem 0}.box>h3,.box__t{font-family:var(--mono);letter-spacing:.1em}.box>h3::before{display:none}.chip{border-radius:0;font-family:var(--mono);font-size:.72rem;background:var(--tint)}
.nx a[data-next],.nx a[data-prev]{background:transparent;border:1px solid var(--line-2);border-radius:0;box-shadow:none}.nx a[data-next]:hover,.nx a[data-prev]:hover{transform:none;border-color:var(--ink);box-shadow:none}.nx a[data-next] span,.nx a[data-prev] span{font-family:var(--mono)}
.nx .home a{border-radius:0;background:transparent;font-family:var(--mono)}
.foot{background:color-mix(in srgb,var(--pg2) 70%,var(--pg));border-color:var(--ink)}
.drawer{border-radius:0;background:var(--card)}.drawer__e{border-radius:0}.drawer__e.cur{border-left:3px solid var(--acc)}.fab{border-radius:50%}

@media(max-width:900px){
  .bar__nav{display:none}.bar__n{display:none}
  .cover--editorial{min-height:auto}.cover__grid{grid-template-columns:auto 1fr;padding-block:3.5rem 5rem}.cover__rail{grid-row:1/3}.cover__plate{grid-column:2;margin-top:2rem;width:min(100%,520px)}.cover__num{font-size:36vw}
  .index-wrap{grid-template-columns:1fr;gap:2rem}.section-label{border-bottom:1px solid var(--line-2);padding-bottom:.75rem}
  .toc-part{grid-template-columns:1fr}.toc-part>header{position:static}.foot--index .index-wrap{grid-template-columns:1fr 1fr}.foot--index p:first-child{grid-column:1/-1}
}
@media(max-width:560px){
  .bar__in{height:56px}.bar__home{font-size:.66rem}.bar__right{margin-left:auto}.cover__grid{grid-template-columns:1fr;padding:2.7rem 1rem 4.5rem}.cover__rail{writing-mode:horizontal-tb;border:0;border-bottom:1px solid var(--line-2);padding:0 0 .7rem;grid-row:auto}.cover h1{font-size:clamp(3.2rem,17vw,5.2rem);margin-top:2.2rem}.cover__plate{grid-column:1;width:100%}.cover__actions{align-items:flex-start;flex-direction:column}.cover__num{font-size:54vw;right:-.1em}
  .index-band{padding:3.8rem 0}.about-copy>.lede{font-size:1.8rem}.stats{grid-template-columns:1fr}.stats>div{grid-template-columns:1fr auto;grid-template-rows:1fr;align-items:baseline;border-right:0;border-bottom:1px solid var(--line-2);padding:.9rem 0}.stats>div:last-child{border-bottom:0}.stats dt,.stats dd{order:initial}.stats b{font-size:2.8rem}
  .toc__body>h2{font-size:2.25rem;margin-bottom:3.5rem}.toc .ep{grid-template-columns:2.4rem minmax(0,1fr)}.toc .ep__arrow{display:none}.toc .ep__p{font-size:.78rem}
  .foot--index .index-wrap{grid-template-columns:1fr}.foot--index p:first-child{grid-column:auto}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.toc .ep,.cover .go,.index-cta .go{transition:none}}
@media print{.bar__nav,.cover__plate,.cover__num,.cover__rail,.index-cta{display:none!important}.cover--editorial{min-height:auto}.cover__grid,.index-wrap{display:block}.index-band{padding:2rem 0}.toc-part{display:block}.toc-part>header{position:static}.toc .ep__p{display:block}.foot--index{background:#fff;color:#000}}