/* ============================================================
   Fable 5.1 & Mythos 5.1 시스템 카드 — 한국어 요약
   DESIGN.md v1 tokens (claude.md Layer B × minimalist Layer A)
   ============================================================ */

:root{
  /* light */
  --bg:#f5f4ed; --surface:#faf9f5; --surface-white:#ffffff; --surface-sand:#e8e6dc;
  --ink:#141413; --ink-2:#3d3d3a; --ink-3:#5e5d59; --ink-4:#87867f;
  --border:#f0eee6; --border-strong:#e8e6dc; --ring:#d1cfc5; --ring-deep:#c2c0b6;
  --accent:#c96442; --accent-strong:#b5573a; --accent-deep:#9c4a2e; --accent-coral:#d97757;
  --focus:#3898ec;
  /* dark chapter */
  --dark-bg:#141413; --dark-surface:#1d1c1a; --dark-raise:#262624; --dark-border:#30302e;
  --dark-text:#faf9f5; --dark-text-2:#b0aea5; --dark-text-3:#8f8d85;
  --dark-red-bg:#2e1d1a; --dark-red-text:#d9907f;
  --dark-amber-bg:#2b2415; --dark-amber-text:#cfa95e;
  --dark-green-bg:#232619; --dark-green-text:#a8b37f;
  /* tints */
  --tint-accent-bg:#f3e7df; --tint-accent-text:#9c4a2e;
  --tint-red-bg:#f7e8e4; --tint-red-text:#b53333;
  --tint-green-bg:#ecefe1; --tint-green-text:#5a6747;
  --tint-amber-bg:#f5efdc; --tint-amber-text:#755a12;
  /* spacing */
  --s-1:8px; --s-2:16px; --s-3:24px; --s-4:32px; --s-5:48px; --s-6:64px; --s-7:96px; --s-8:128px;
  /* radius */
  --r-xs:4px; --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px;
  --serif:'Nanum Myeongjo',serif;
  --sans:'Pretendard Variable',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:ui-monospace,'SF Mono','Menlo','Consolas',monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:var(--sans); font-size:1.0625rem; line-height:1.75;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{ /* paper tooth */
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none; opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}
::selection{background:var(--tint-accent-bg); color:var(--accent-deep)}

h1,h2,h3{font-family:var(--serif); font-weight:700; margin:0; color:var(--ink)}
p{margin:0}
a{color:var(--accent-deep); text-decoration:none}
a:hover{text-decoration:underline; text-underline-offset:3px}
strong{font-weight:600; color:var(--ink-2)}
code,kbd{font-family:var(--mono); font-size:.86em; background:var(--surface-sand); border:1px solid var(--border-strong); border-radius:var(--r-xs); padding:.08em .35em; word-break:break-all}
:focus-visible{outline:2px solid var(--focus); outline-offset:2px; border-radius:var(--r-xs)}

.skip-link{position:absolute; left:-9999px; top:0; background:var(--ink); color:var(--surface); padding:10px 16px; border-radius:0 0 var(--r-sm) 0; z-index:100}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{max-width:1120px; margin:0 auto; padding:14px var(--s-3); display:flex; align-items:center; gap:var(--s-2)}
.brand{font-family:var(--mono); font-size:.8125rem; color:var(--ink-3); letter-spacing:.02em; display:flex; align-items:center; gap:10px}
.brand .dot{width:8px; height:8px; border-radius:999px; background:var(--accent); flex:none}
.header-spacer{flex:1}
.toc-toggle{
  display:none; align-items:center; gap:8px; min-height:44px; padding:0 16px;
  font-family:var(--mono); font-size:.8125rem; color:var(--ink-2);
  background:var(--surface); border:1px solid var(--border-strong); border-radius:var(--r-md); cursor:pointer;
}
.toc-toggle:hover{border-color:var(--ring-deep)}

/* ---------- layout ---------- */
.page{position:relative; z-index:1; max-width:1120px; margin:0 auto; padding:0 var(--s-3)}
.chapter{padding:var(--s-7) 0; content-visibility:auto; contain-intrinsic-size:auto 900px}
.chapter:first-of-type{padding-top:var(--s-6)}
.section-head{margin-bottom:var(--s-4)}
.overline{font-size:.75rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color:var(--accent-deep); font-family:var(--sans); margin-bottom:10px}
.section-head h2{font-size:clamp(1.7rem,1.25rem + 1.8vw,2.2rem); line-height:1.28; letter-spacing:-.01em}
.section-head .rule{width:48px; height:2px; background:var(--border-strong); margin-top:18px}
.prose{max-width:68ch}
.prose p + p{margin-top:1em}
.prose-lg{font-size:1.125rem; color:var(--ink-2)}
.muted{color:var(--ink-3)}
.caption{font-size:.8125rem; line-height:1.55; color:var(--ink-3)}
.mono{font-family:var(--mono); font-size:.8125rem}

/* reveal */
.rv{opacity:0; transform:translateY(12px)}
.rv.in{opacity:1; transform:none; transition:opacity .6s cubic-bezier(.16,1,.3,1), transform .6s cubic-bezier(.16,1,.3,1); transition-delay:calc(var(--i,0) * 80ms)}
@media (prefers-reduced-motion:reduce){.rv{opacity:1; transform:none} .rv.in{transition:none}}

/* ---------- hero ---------- */
.hero{padding:var(--s-6) 0 var(--s-7)}
.hero-grid{display:grid; gap:var(--s-5); align-items:center}
.hero .overline{margin-bottom:var(--s-2)}
.hero h1{font-size:clamp(2.4rem,1.4rem + 4vw,3.9rem); line-height:1.16; letter-spacing:-.015em}
.hero h1 .thin{color:var(--ink-4)}
.standfirst{margin-top:var(--s-3); font-size:1.125rem; line-height:1.75; color:var(--ink-2); max-width:56ch}
.hero-ctas{display:flex; flex-wrap:wrap; gap:12px; margin-top:var(--s-4)}
.hero-meta{margin-top:var(--s-3); display:flex; flex-wrap:wrap; gap:8px}

/* paper stack object */
.hero-object{position:relative; height:380px; display:none}
.sheet{
  position:absolute; inset:0; margin:auto; width:min(340px,80%); height:300px;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  box-shadow:rgba(20,20,19,.05) 0 4px 24px;
  padding:26px 26px 22px; display:flex; flex-direction:column; gap:14px;
}
.sheet-1{transform:rotate(-2deg) translate(-14px,-10px); opacity:.55; z-index:1}
.sheet-2{transform:rotate(1.5deg) translate(12px,6px); opacity:.8; z-index:2}
.sheet-3{transform:rotate(0deg); z-index:3}
.sheet .line{height:9px; border-radius:99px; background:var(--border-strong)}
.sheet .line.w40{width:40%} .sheet .line.w70{width:70%} .sheet .line.w55{width:55%} .sheet .line.w85{width:85%}
.bookmark{
  position:absolute; top:-1px; right:34px; width:26px; height:74px; z-index:4;
  background:var(--accent); border-radius:0 0 4px 4px;
}
.bookmark::after{content:""; position:absolute; left:0; bottom:-1px; border-left:13px solid transparent; border-right:13px solid transparent; border-bottom:10px solid var(--surface)}
.sheet-chips{margin-top:auto; display:flex; flex-wrap:wrap; gap:8px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px; min-height:44px; padding:0 20px;
  font-family:var(--sans); font-weight:600; font-size:.95rem; border-radius:var(--r-md);
  border:1px solid transparent; cursor:pointer; text-decoration:none !important;
  transition:transform .12s ease;
}
.btn:active{transform:translateY(1px) scale(.98)}
.btn svg{flex:none}
.btn--primary{background:var(--accent-strong); color:var(--surface)}
.btn--primary:hover{background:#a84e33}
.btn--sand{background:var(--surface-sand); color:#4d4c48; border-color:var(--border-strong)}
.btn--sand:hover{box-shadow:0 0 0 1px var(--ring)}
.btn--ghost{background:transparent; color:var(--ink-2); border-color:var(--border-strong)}
.btn--ghost:hover{box-shadow:0 0 0 1px var(--ring)}

/* ---------- chips / tags ---------- */
.tag{
  display:inline-flex; align-items:center; gap:6px; padding:4px 12px; border-radius:999px;
  font-family:var(--mono); font-size:.75rem; letter-spacing:.02em; white-space:nowrap;
  border:1px solid var(--border-strong); background:var(--surface); color:var(--ink-3);
}
.tag--accent{background:var(--tint-accent-bg); color:var(--tint-accent-text); border-color:transparent}
.tag--red{background:var(--tint-red-bg); color:var(--tint-red-text); border-color:transparent}
.tag--green{background:var(--tint-green-bg); color:var(--tint-green-text); border-color:transparent}
.tag--amber{background:var(--tint-amber-bg); color:var(--tint-amber-text); border-color:transparent}
.tag--dark-red{background:var(--dark-red-bg); color:var(--dark-red-text); border-color:transparent}
.tag--dark-amber{background:var(--dark-amber-bg); color:var(--dark-amber-text); border-color:transparent}
.tag--dark-green{background:var(--dark-green-bg); color:var(--dark-green-text); border-color:transparent}
.tag--dark{background:var(--dark-raise); color:var(--dark-text-2); border-color:var(--dark-border)}

/* ---------- cards & grids ---------- */
.grid{display:grid; gap:var(--s-3)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  padding:var(--s-4); display:flex; flex-direction:column; gap:12px;
}
.card h3{font-size:1.55rem; line-height:1.35}
.card h4{font-family:var(--sans); font-size:1.05rem; font-weight:600; margin:0; color:var(--ink)}
.card .card-body{color:var(--ink-3); font-size:.9375rem; line-height:1.65}
.card .card-body strong{color:var(--ink-2)}
.card-num{font-family:var(--mono); font-size:.8125rem; color:var(--accent-deep)}
.card-foot{margin-top:auto; display:flex; flex-wrap:wrap; gap:8px}

.stat{display:flex; flex-direction:column; gap:4px}
.stat .num{font-family:var(--serif); font-weight:700; font-size:clamp(2rem,1.5rem + 2vw,2.75rem); line-height:1.1; font-variant-numeric:tabular-nums; color:var(--ink)}
.stat .num .unit{font-size:.5em; color:var(--ink-3); font-family:var(--sans); font-weight:500}
.stat .lbl{font-size:.8125rem; color:var(--ink-3); line-height:1.55}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto; border:1px solid var(--border); border-radius:var(--r-lg); background:var(--surface)}
table.data{border-collapse:collapse; width:100%; min-width:640px; font-size:.9375rem}
table.data caption{text-align:left; padding:16px 20px 0; font-size:.8125rem; color:var(--ink-3); caption-side:top}
table.data th, table.data td{padding:12px 16px; text-align:left; border-bottom:1px solid var(--border); vertical-align:top}
table.data thead th{background:var(--surface-white); font-family:var(--sans); font-weight:600; font-size:.8125rem; letter-spacing:.02em; color:var(--ink-2); position:sticky; top:0}
table.data tbody tr:last-child td{border-bottom:none}
table.data td.num, table.data th.num{font-variant-numeric:tabular-nums; white-space:nowrap}
table.data td.best{color:var(--accent-deep); font-weight:700; box-shadow:inset 0 -2px 0 var(--tint-accent-bg)}
table.data td.bench{font-weight:600; color:var(--ink)}
.table-legend{margin-top:12px}
@media (max-width:767px){
  table.data, table.data thead, table.data tbody, table.data tr, table.data td{display:block; min-width:0}
  table.data thead{display:none}
  table.data caption{padding:14px 16px}
  table.data tr{border-bottom:1px solid var(--border-strong); padding:12px 16px}
  table.data tr:last-child{border-bottom:none}
  table.data td{border:none; padding:4px 0; font-variant-numeric:tabular-nums}
  table.data td::before{content:attr(data-label); display:block; font-size:.75rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-4)}
  table.data td.bench::before{display:none}
  table.data td.bench{font-size:1.05rem; padding-bottom:8px}
  table.data td.best{box-shadow:none; background:var(--tint-accent-bg); border-radius:var(--r-xs); padding:4px 8px}
}

/* ---------- dark chapter ---------- */
.chapter--dark{
  background:var(--dark-bg); color:var(--dark-text-2);
  position:relative;
}
.chapter--dark::before,.chapter--dark::after{content:""; display:block; height:1px; background:var(--border-strong)}
.chapter--dark .section-head h2{color:var(--dark-text)}
.chapter--dark .overline{color:var(--accent-coral)}
.chapter--dark .section-head .rule{background:var(--dark-border)}
.chapter--dark strong{color:var(--dark-text)}
.chapter--dark .prose{color:var(--dark-text-2)}
.chapter--dark code{background:var(--dark-raise); border-color:var(--dark-border); color:var(--dark-text)}
.incident{
  background:var(--dark-surface); border:1px solid var(--dark-border); border-radius:var(--r-lg);
  padding:var(--s-4); display:flex; flex-direction:column; gap:14px;
}
.incident-head{display:flex; align-items:baseline; gap:14px}
.incident-idx{font-family:var(--mono); font-size:.8125rem; color:var(--accent-coral)}
.incident-head h3{font-family:var(--sans); font-size:1.05rem; font-weight:600; color:var(--dark-text)}
.incident .body{font-size:.9375rem; line-height:1.65; color:var(--dark-text-2)}
.incident-foot{margin-top:auto; display:flex; flex-wrap:wrap; gap:8px}
.quote-well{
  font-family:var(--mono); font-size:.8125rem; line-height:1.6; color:var(--dark-text-2);
  background:var(--dark-raise); border:1px solid var(--dark-border); border-radius:var(--r-sm);
  padding:14px 16px 14px 40px; position:relative; word-break:break-word;
}
.quote-well::before{content:"“"; position:absolute; left:14px; top:10px; font-family:var(--serif); font-size:1.6rem; color:var(--accent-coral)}
.quote-well--light{background:var(--surface-sand); border-color:var(--border-strong); color:var(--ink-3)}
.quote-well--light::before{color:var(--accent)}

/* ---------- notes & lists ---------- */
.note{
  border:1px solid var(--border); border-left:3px solid var(--accent); border-radius:var(--r-sm);
  background:var(--surface); padding:var(--s-3) var(--s-3) var(--s-3) var(--s-4);
  display:flex; gap:14px; align-items:flex-start;
}
.note svg{flex:none; margin-top:4px}
.note .note-body{font-size:.9375rem; color:var(--ink-3); line-height:1.65}
.note .note-body strong{color:var(--ink-2)}
.note--green{border-left-color:#8a9a6b}
.note--amber{border-left-color:#c9a24b}
.note--red{border-left-color:#c05a4a}
.note--dark{background:var(--dark-surface); border-color:var(--dark-border); border-left-color:var(--accent-coral)}
.note--dark .note-body{color:var(--dark-text-2)}
.note--dark .note-body strong{color:var(--dark-text)}

ul.tick{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:14px}
ul.tick li{position:relative; padding-left:26px; color:var(--ink-3)}
ul.tick li::before{content:""; position:absolute; left:0; top:.62em; width:14px; height:2px; background:var(--accent)}
.chapter--dark ul.tick li{color:var(--dark-text-2)}

/* ---------- TOC rail ---------- */
.toc-rail{display:none}
@media (min-width:1400px){
  .toc-rail{display:block; position:fixed; top:120px; right:max(24px, calc((100vw - 1120px)/2 - 220px)); width:200px; z-index:40}
}
.toc{display:flex; flex-direction:column; gap:2px; font-size:.8125rem}
.toc a{
  position:relative; display:flex; gap:10px; align-items:baseline; padding:7px 10px 7px 14px;
  color:var(--ink-4); border-radius:var(--r-sm); text-decoration:none !important; line-height:1.45;
}
.toc a:hover{color:var(--ink-2); background:var(--surface)}
.toc a .idx{font-family:var(--mono); font-size:.75rem; color:var(--ink-4)}
.toc a[aria-current="true"]{color:var(--ink); background:var(--surface)}
.toc a[aria-current="true"]::before{
  content:""; position:absolute; left:0; top:8px; bottom:8px; width:2px; border-radius:2px;
  background:var(--accent); transform:scaleY(1);
}
.toc-title{font-family:var(--mono); font-size:.75rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-4); margin:0 0 8px 14px}

/* TOC overlay (mobile) */
.toc-overlay{position:fixed; inset:0; z-index:90; display:none}
.toc-overlay.open{display:block}
.toc-scrim{position:absolute; inset:0; background:rgba(20,20,19,.4)}
.toc-panel{
  position:absolute; top:0; right:0; bottom:0; width:min(340px,88vw);
  background:var(--surface); border-left:1px solid var(--border-strong);
  padding:var(--s-3); overflow-y:auto;
}
.toc-panel .toc a{font-size:.9375rem; padding:10px 12px 10px 14px}
.toc-close{
  min-height:44px; width:100%; margin-bottom:var(--s-2);
  background:var(--surface-sand); border:1px solid var(--border-strong); border-radius:var(--r-md);
  font-family:var(--mono); font-size:.8125rem; color:var(--ink-2); cursor:pointer;
}

/* ---------- footer ---------- */
.site-footer{background:var(--dark-bg); color:var(--dark-text-3); padding:var(--s-6) 0; border-top:1px solid var(--dark-border)}
.site-footer .page{display:flex; flex-direction:column; gap:var(--s-3)}
.site-footer a{color:var(--dark-text-2)}
.footer-grid{display:grid; gap:var(--s-3)}
.footer-title{font-family:var(--serif); font-weight:700; font-size:1.3rem; color:var(--dark-text)}
.footer-links{display:flex; flex-wrap:wrap; gap:12px}
.btn--ghost-dark{background:transparent; color:var(--dark-text); border-color:var(--dark-border)}
.btn--ghost-dark:hover{box-shadow:0 0 0 1px var(--dark-border)}

/* ---------- responsive ---------- */
@media (min-width:992px){
  .hero-grid{grid-template-columns:1.15fr .85fr}
  .hero-object{display:block}
}
@media (min-width:768px){
  .grid--2.cols-md-2{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr auto; align-items:end}
}
@media (max-width:1399px){ .toc-toggle{display:inline-flex; white-space:nowrap} }
@media (max-width:767px){
  .chapter{padding:var(--s-6) 0}
  .grid--3,.grid--2{grid-template-columns:1fr}
  .header-inner{padding:12px var(--s-3)}
}
@media (max-width:479px){
  .hero-ctas .btn{width:100%; justify-content:center}
  .brand{font-size:.72rem; letter-spacing:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important; animation:none !important}
}