/* ============================================================
   Ag-DLC — shared editorial design system
   Inspired by Junk (scroll-reactive/neutral), Obermann (refined
   deep-blue cinematic), Blackbook (full-bleed editorial).
   ============================================================ */
:root{
  --paper:#f3efe7;        /* warm off-white for light plates */
  --deep:#0a1a3a;         /* obermann deep blue */
  --maxw:1280px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:'Alegreya',serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background .3s,color .3s}
::selection{background:var(--accent);color:#fff}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}

.serif{font-family:'Caudex',serif}
.mono{font-family:'Alegreya',serif}
h1,h2,h3{font-family:'Caudex',serif;font-weight:400;letter-spacing:-.02em;line-height:1.04}
.kicker{font-family:'Alegreya',serif;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--accent)}

/* film grain + vignette */
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  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='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.vignette{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 0%,transparent 55%,rgba(0,0,0,.55) 100%)}

/* progress */
.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:60;background:var(--accent);box-shadow:0 0 12px var(--accent)}

/* top bar */
.topbar{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:20px clamp(18px,4vw,46px);background:rgba(250,248,243,0.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);transition:background .3s}
html[data-theme="dark"] .topbar{background:rgba(26,20,16,0.92)}
.topbar .brand{font-family:'Caudex',serif;font-weight:600;font-size:19px;letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.topbar .brand .mk{width:11px;height:11px;border-radius:50%;background:var(--accent)}
.topbar .rt{display:flex;gap:26px;font-family:'Alegreya',serif;font-size:12.5px;letter-spacing:.04em;align-items:center}
.topbar .rt a{opacity:.85;transition:opacity .2s}
.topbar .rt a:hover{opacity:1}
@media(max-width:720px){.topbar .rt a.hide-sm{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:999px;font-family:'Alegreya',serif;
  font-size:13px;letter-spacing:.02em;transition:transform .18s,background .2s,color .2s;cursor:pointer;border:1px solid var(--line)}
.btn-fill{background:var(--accent);color:#0a0a0a;border-color:var(--accent)}
.btn-fill:hover{transform:translateY(-2px)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}

/* reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .9s cubic-bezier(.16,.8,.3,1),transform .9s cubic-bezier(.16,.8,.3,1)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}
.line-mask{overflow:hidden;display:block}
.line-mask>span{display:block;transform:translateY(105%);transition:transform 1s cubic-bezier(.16,.9,.28,1)}
.in .line-mask>span,.line-mask.in>span{transform:none}

/* layout shell */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,46px);position:relative;z-index:2}
.rule{height:1px;background:var(--line);margin:0}

/* ============ CHAPTER (article) pages ============ */
.chapter-hero{position:relative;padding:180px clamp(18px,4vw,46px) 60px;max-width:var(--maxw);margin:0 auto;z-index:2}
.chapter-hero .lvl-badge{display:inline-flex;align-items:center;gap:12px;font-family:'Alegreya',serif;font-size:12.5px;
  letter-spacing:.2em;text-transform:uppercase;margin-bottom:26px}
.chapter-hero .lvl-badge .sq{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-family:'Caudex';
  font-weight:700;font-size:19px;color:#fff}
.chapter-hero h1{font-size:clamp(40px,8vw,96px);font-weight:400;max-width:15ch}
.chapter-hero .stand{font-family:'Caudex';font-style:italic;font-weight:400;font-size:clamp(19px,2.6vw,28px);
  color:var(--muted);margin-top:26px;max-width:42ch}
.chapter-hero .meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chapter-hero .meta .m{font-family:'Alegreya',serif;font-size:12px;padding:8px 14px;border:1px solid var(--line);
  border-radius:999px;color:var(--muted)}
.chapter-hero .meta .m b{color:var(--ink)}

/* full-bleed figure */
.figure{margin:70px 0}
.figure.bleed{max-width:none;width:100%;padding:0 clamp(18px,4vw,46px)}
.figure .plate{background:var(--paper);border-radius:16px;padding:clamp(14px,3vw,34px);overflow:hidden;
  box-shadow:0 40px 90px -40px rgba(0,0,0,.9)}
.figure img{width:100%;border-radius:6px}
.figure figcaption{font-family:'Alegreya',serif;font-size:12px;color:var(--faint);margin-top:16px;letter-spacing:.02em}
.figure figcaption b{color:var(--muted)}

/* article body */
.article{max-width:760px;margin:0 auto;padding:20px clamp(18px,4vw,46px) 40px;position:relative;z-index:2}
.article.wide{max-width:960px}
.article h2{font-size:clamp(28px,4vw,42px);margin:70px 0 22px;font-weight:400}
.article h3{font-family:'Caudex',serif;font-weight:600;font-size:22px;margin:44px 0 14px;letter-spacing:-.01em}
.article p{font-size:18px;color:var(--ink);margin:0 0 20px}
.article p.big{font-family:'Caudex';font-size:clamp(22px,3vw,30px);line-height:1.35;color:var(--ink);margin:10px 0 30px;font-weight:400}
.article a.inl{color:var(--accent);border-bottom:1px solid color-mix(in srgb,var(--accent) 45%,transparent)}
.article strong{color:var(--ink);font-weight:600}
.article em{color:var(--muted)}
.article ul{margin:0 0 24px;padding:0;list-style:none}
.article ul li{position:relative;padding-left:26px;margin-bottom:12px;font-size:18px;color:var(--ink)}
.article ul li::before{content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;background:var(--accent);border-radius:2px;transform:rotate(45deg)}
.article ul li b,.article ul li strong{color:var(--ink)}

/* pull quote */
.pull{border-left:2px solid var(--accent);padding:6px 0 6px 28px;margin:40px 0;
  font-family:'Caudex';font-style:italic;font-size:clamp(22px,3.2vw,32px);line-height:1.3;color:var(--ink);font-weight:400}
.pull cite{display:block;font-family:'Alegreya',serif;font-style:normal;font-size:12px;color:var(--faint);margin-top:14px;letter-spacing:.06em}

/* callout */
.callout{border:1px solid var(--line);border-radius:16px;padding:24px 28px;margin:34px 0;background:transparent}
.callout .lab{font-family:'Alegreya',serif;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:10px;color:var(--muted)}
.callout.warn{border-color:color-mix(in srgb,#fbbf24 34%,transparent)}
.callout.warn .lab{color:#fbbf24}
.callout.good{border-color:color-mix(in srgb,var(--l4) 40%,transparent)}
.callout.good .lab{color:var(--l4)}
.callout p{font-size:18px;color:var(--ink);margin:0}
.callout p+p{margin-top:10px}

/* data table */
.tbl{margin:34px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
thead th{background:transparent;text-align:left;padding:14px 18px;font-family:'Alegreya',serif;
  font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:500}
tbody td{padding:14px 18px;border-top:1px solid var(--line);color:var(--ink);vertical-align:top}
tbody tr td:first-child{color:var(--ink);font-weight:500;white-space:nowrap}
tbody td b{color:var(--ink)}

/* prev / next */
.pager{max-width:var(--maxw);margin:40px auto 0;padding:0 clamp(18px,4vw,46px);display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative;z-index:2}
@media(max-width:640px){.pager{grid-template-columns:1fr}}
.pager a{border:none;background:transparent;padding:14px 16px;transition:opacity .2s;position:relative;cursor:pointer}
.pager a:hover{opacity:.7}
.pager .dir{font-family:'Alegreya',serif;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint)}
.pager .ttl{font-family:'Caudex',serif;font-size:13px;margin-top:2px;font-weight:500;color:var(--muted)}
.pager a.next{text-align:right}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:100px;padding:60px clamp(18px,4vw,46px);position:relative;z-index:2}
.foot .fw{max-width:var(--maxw);margin:0 auto}
.foot .fx{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;font-family:'Alegreya',serif;font-size:12.5px;color:var(--muted)}
.foot .fx a{display:block;margin-bottom:8px;opacity:.8;color:var(--muted)}
.foot .fx a:hover{opacity:1;color:var(--ink)}
.foot .fx b{color:var(--ink);display:block;margin-bottom:12px;font-family:'Caudex',serif;font-weight:700}
.foot .disc{margin-top:44px;font-size:11.5px;color:var(--faint);max-width:70ch;line-height:1.6;margin-left:auto;margin-right:auto;text-align:center}
.foot .disc.cc{margin-top:6px;font-size:10.5px}
.foot .disc.cc a{color:var(--faint);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line)}
.foot .disc.cc a:hover{color:var(--accent);text-decoration-color:var(--accent)}

/* chapter index list (in footer / hub) */
.toc-col b{color:var(--ink);display:block;margin-bottom:14px;font-family:'Caudex';font-size:15px;font-weight:700}

/* ===== responsive ===== */
@media(max-width:768px){
  .topbar{padding:16px 24px;flex-wrap:wrap;gap:8px}
  .topbar .brand{font-size:16px}
  .topbar .rt{gap:14px;font-size:12px;flex-wrap:wrap}
  .topbar .rt a.hide-sm{display:none}
  .chapter-hero{padding:140px 24px 40px}
  .chapter-hero h1{font-size:clamp(28px,8vw,48px)}
  .chapter-hero .stand{font-size:clamp(16px,3vw,22px)}
  .chapter-hero .meta{gap:6px}
  .chapter-hero .meta .m{font-size:11px;padding:6px 10px}
  .figure{margin:40px 0}
  .figure.bleed{padding:0 24px}
  .figure .plate{padding:clamp(10px,2vw,20px)}
  .article{padding:16px 24px 30px}
  .article h2{font-size:clamp(24px,5vw,32px);margin:40px 0 16px}
  .article h3{font-size:18px}
  .article p.big{font-size:clamp(20px,4vw,26px)}
  .callout{padding:18px 20px}
  .callout .lab{font-size:13px}
  .tbl{margin:24px 0;border-radius:10px}
  table{font-size:13px;min-width:400px}
  thead th{font-size:13px;padding:10px 12px}
  tbody td{padding:10px 12px}
  .pager{padding:0 24px;gap:8px}
  .pager .dir{font-size:12px}
  .pager .ttl{font-size:12px}
  .foot{padding:40px 24px;margin-top:60px}
  .foot .fx{flex-direction:column;gap:24px;font-size:12px}
  .foot .disc{font-size:11px;margin-top:30px}
  .foot .disc.cc{font-size:10px}
}

@media(max-width:480px){
  .topbar{padding:12px 20px}
  .topbar .brand{font-size:14px}
  .topbar .rt{gap:8px;font-size:11px}
  .chapter-hero{padding:110px 20px 30px}
  .chapter-hero .lvl-badge{font-size:11px;gap:8px}
  .chapter-hero .lvl-badge .sq{width:28px;height:28px;font-size:16px}
  .chapter-hero h1{font-size:26px}
  .chapter-hero .stand{font-size:15px;margin-top:16px}
  .chapter-hero .meta .m{font-size:10px;padding:4px 8px}
  .article{padding:12px 20px 20px}
  .article h2{font-size:22px;margin:30px 0 12px}
  .article h3{font-size:16px}
  .article p{font-size:16px}
  .article ul li{font-size:16px;padding-left:20px}
  .article ul li::before{width:6px;height:6px;top:9px}
  .pull{font-size:clamp(18px,4vw,24px);padding:4px 0 4px 18px;margin:28px 0}
  .pull cite{font-size:11px}
  .callout{padding:14px 20px;margin:24px 0}
  .callout .lab{font-size:12px}
  .callout p{font-size:16px}
  table{font-size:12px;min-width:300px}
  thead th{font-size:12px;padding:8px 10px}
  tbody td{padding:8px 10px}
  .pager{padding:0 20px}
  .pager .dir{font-size:11px}
  .pager .ttl{font-size:11px}
  .foot{padding:30px 20px;margin-top:40px}
  .foot .fx{font-size:11px}
  .foot .disc{font-size:10px}
  .foot .disc.cc{font-size:9px}
}