/* ===== The Nature Library — field-guide theme ===== */
:root{
  --paper:#f4ecd8;          /* aged cream */
  --paper-2:#efe6cf;
  --ink:#2e2a20;            /* sepia-black */
  --ink-soft:#5c5442;
  --rule:#c9bb98;
  --green:#355e3b;          /* forest */
  --green-dk:#25482c;
  --rust:#7c1f1f;
  --gold:#8a6d1b;
  --link:#5a3a1f;
  --shadow:0 1px 2px rgba(0,0,0,.10), 0 6px 18px rgba(60,50,20,.08);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --display:"Iowan Old Style",Georgia,"Palatino Linotype",serif;
  --sans:"Gill Sans","Gill Sans MT",Optima,"Segoe UI",system-ui,sans-serif;
  --maxw:960px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--paper);
  color:var(--ink); font-family:var(--serif);
  font-size:18px; line-height:1.62;
  /* Cheap parchment: two soft highlights + a faint laid-paper hatch.
     No SVG filters (they hang screenshot rasterization). */
  background-image:
    radial-gradient(circle at 18% 8%, rgba(255,255,255,.40), transparent 55%),
    radial-gradient(circle at 88% 92%, rgba(120,95,40,.06), transparent 60%),
    repeating-linear-gradient(0deg, rgba(120,95,40,.025) 0 1px, transparent 1px 4px);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}

/* ---- header / footer ---- */
.site-head{
  display:flex;align-items:baseline;gap:1.4rem;flex-wrap:wrap;
  padding:.9rem 1.4rem; border-bottom:2px solid var(--green);
  background:linear-gradient(var(--paper-2),var(--paper));
  position:sticky;top:0;z-index:20;
  box-shadow:0 2px 8px rgba(60,50,20,.06);
}
.brand{font-family:var(--display);font-size:1.35rem;font-weight:700;
  color:var(--green-dk);letter-spacing:.3px}
.brand:hover{text-decoration:none;color:var(--rust)}
.site-head nav{margin-left:auto;display:flex;gap:1.2rem;flex-wrap:wrap}
.site-head nav a{font-family:var(--sans);font-size:.86rem;text-transform:uppercase;
  letter-spacing:.12em;color:var(--ink-soft)}
.site-head nav a:hover{color:var(--green-dk);text-decoration:none;
  border-bottom:1px solid var(--gold)}

main{max-width:var(--maxw);margin:0 auto;padding:2.2rem 1.4rem 3rem}
.site-foot{max-width:var(--maxw);margin:0 auto;padding:1rem 1.4rem 3rem;
  color:var(--ink-soft);font-size:.86rem;font-family:var(--sans)}
.foot-rule{height:0;border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);height:4px;margin:0 0 1rem}

/* ---- hero ---- */
.hero{max-width:64ch;padding:1.4rem 0 2.2rem;border-bottom:1px solid var(--rule);margin-bottom:2rem}
.eyebrow{font-family:var(--sans);text-transform:uppercase;letter-spacing:.2em;
  font-size:.75rem;color:var(--gold);margin:0 0 .3rem}
.hero-title{font-family:var(--display);font-size:3.4rem;line-height:1.02;margin:.1rem 0 .6rem;
  color:var(--green-dk);font-weight:700}
.hero-lede{font-size:1.06rem;color:var(--ink);margin:.4rem 0 1.2rem}
.btn{display:inline-block;font-family:var(--sans);font-size:.82rem;letter-spacing:.1em;
  text-transform:uppercase;padding:.6rem 1.05rem;border-radius:3px;
  background:var(--green);color:#f6efdd;border:1px solid var(--green-dk)}
.btn:hover{background:var(--green-dk);text-decoration:none}
.btn-ghost{background:transparent;color:var(--green-dk)}
.btn-ghost:hover{background:#35603b18}

/* ---- section heads ---- */
.section-h{font-family:var(--display);font-size:1.7rem;color:var(--green-dk);
  margin:2.2rem 0 1rem;padding-bottom:.35rem;border-bottom:2px solid var(--green);
  display:inline-block}
h1{font-family:var(--display);color:var(--green-dk);font-size:2.3rem;line-height:1.1;margin:.2rem 0 .8rem}
h2{font-family:var(--display);color:var(--green-dk)}
.lede{font-size:1.1rem;color:var(--ink-soft);max-width:60ch}

/* ---- volume grid ---- */
.vol-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:1rem;margin:1.2rem 0}
.vol-grid.wide{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.vol-tile{display:flex;background:#fbf6e7;border:1px solid var(--rule);border-radius:4px;
  overflow:hidden;box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .12s}
.vol-tile:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(60,50,20,.16);text-decoration:none}
.vt-spine{flex:0 0 46px;display:flex;align-items:center;justify-content:center;
  color:#f6efdd;font-family:var(--display);font-size:1.15rem;
  border-right:3px solid rgba(0,0,0,.18)}
.vt-spine span{writing-mode:vertical-rl;transform:rotate(180deg);letter-spacing:2px}
.vt-body{padding:.7rem .85rem;display:flex;flex-direction:column;gap:.15rem}
.vt-title{font-family:var(--display);font-size:1.15rem;color:var(--green-dk);font-weight:700}
.vt-author{font-size:.82rem;color:var(--ink-soft);font-style:italic}
.tag{align-self:flex-start;margin-top:.35rem;font-family:var(--sans);font-size:.66rem;
  text-transform:uppercase;letter-spacing:.09em;padding:.12rem .45rem;border-radius:2px}
.tag-soon{background:#7c1f1f18;color:var(--rust);border:1px solid #7c1f1f40}
.tag-img{background:#8a6d1b18;color:var(--gold);border:1px solid #8a6d1b40}

/* ---- volume page ---- */
.vol-head{display:flex;align-items:center;gap:1rem;margin:.4rem 0 1rem}
.vol-roman{--sc:#355e3b;flex:0 0 64px;height:64px;border-radius:6px;background:var(--sc);
  color:#f6efdd;font-family:var(--display);font-size:1.7rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.byline{font-style:italic;color:var(--ink-soft);margin:.1rem 0 0}
.purpose{max-width:66ch;margin:1rem 0 1.4rem}
.purpose p:first-child::first-letter{font-family:var(--display);float:left;font-size:3.1rem;
  line-height:.8;padding:.05em .12em 0 0;color:var(--rust)}
.vol-count{font-family:var(--sans);font-size:.85rem;color:var(--ink-soft);
  text-transform:uppercase;letter-spacing:.08em}
.note,.img-soon{font-style:italic;color:var(--ink-soft)}
.badge{display:inline-block;font-family:var(--sans);font-size:.75rem;letter-spacing:.1em;
  text-transform:uppercase;padding:.25rem .6rem;border-radius:3px}
.badge-soon{background:#7c1f1f18;color:var(--rust);border:1px solid #7c1f1f40}

.order-h{font-family:var(--sans);font-size:.82rem;text-transform:uppercase;
  letter-spacing:.14em;color:var(--gold);margin:1.7rem 0 .1rem;
  padding-bottom:.3rem;border-bottom:1px solid var(--rule)}

/* ---- group grid ---- */
.group-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:.9rem;margin:1.2rem 0}
.group-card{display:flex;flex-direction:column;background:#fbf6e7;border:1px solid var(--rule);
  border-radius:4px;overflow:hidden;box-shadow:var(--shadow);min-height:120px;
  transition:transform .12s ease,box-shadow .12s}
.group-card:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(60,50,20,.16);text-decoration:none}
.gc-thumb{height:96px;background:#e8dcc0 center/cover no-repeat;display:block;overflow:hidden}
.gc-thumb img{width:100%;height:100%;object-fit:cover}
.gc-name{font-family:var(--display);font-size:1.05rem;color:var(--green-dk);
  padding:.5rem .7rem 0;font-weight:700}
.gc-count{font-family:var(--sans);font-size:.74rem;color:var(--ink-soft);
  padding:.1rem .7rem .6rem;text-transform:uppercase;letter-spacing:.07em}

/* ---- entry list ---- */
.entry-list{list-style:none;padding:0;margin:1.2rem 0;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.5rem}
.entry-list li a{display:flex;align-items:center;gap:.7rem;padding:.4rem .55rem;
  border:1px solid transparent;border-radius:4px}
.entry-list li a:hover{background:#fbf6e7;border-color:var(--rule);text-decoration:none}
.entry-list img{width:52px;height:40px;object-fit:cover;border-radius:3px;
  border:1px solid var(--rule);flex:0 0 52px}
.el-name{font-family:var(--display);color:var(--green-dk);font-weight:600}
.sci{font-style:italic;color:var(--ink-soft);font-size:.85em}

/* ---- entry page ---- */
.crumbs{font-family:var(--sans);font-size:.78rem;color:var(--ink-soft);letter-spacing:.03em;
  text-transform:uppercase;margin:0 0 1rem}
.entry-title{margin-bottom:.1rem}
.entry-meta{font-size:1rem;color:var(--ink-soft);margin:.1rem 0 .5rem}
.called{font-family:var(--sans);font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;
  color:var(--gold);margin:.2rem 0 1rem}
.entry article,.entry{max-width:70ch}
.plates{display:flex;flex-wrap:wrap;gap:1rem;margin:1rem 0 1.4rem}
.plates figure{margin:0;flex:1 1 240px;max-width:340px;background:#fbf6e7;
  border:1px solid var(--rule);padding:.5rem;box-shadow:var(--shadow)}
.plates figcaption{font-family:var(--sans);font-size:.76rem;color:var(--ink-soft);
  text-align:center;margin-top:.4rem;font-variant:small-caps;letter-spacing:.04em}
.plates figure.plate-full{flex:1 1 100%;max-width:460px}
.plates figure.plate-full img{width:100%}
.plates figure.plate-full figcaption{font-variant:normal;font-style:italic}
dl.fields{background:#fbf6e7;border:1px solid var(--rule);border-left:4px solid var(--green);
  padding:.7rem 1rem;margin:1rem 0 1.4rem;display:grid;grid-template-columns:auto 1fr;
  gap:.2rem 1rem;font-size:.94rem}
dl.fields dt{font-family:var(--sans);font-size:.72rem;text-transform:uppercase;
  letter-spacing:.08em;color:var(--gold);padding-top:.15rem}
dl.fields dd{margin:0}
.entry p{margin:.7rem 0}
.entry-nav{display:flex;justify-content:space-between;gap:1rem;margin-top:2rem;
  padding-top:1rem;border-top:1px solid var(--rule);font-family:var(--sans);font-size:.9rem}
.entry-nav .next{margin-left:auto;text-align:right}

/* ---- questions ---- */
.questions{max-width:64ch;font-size:1.02rem}
.questions li{margin:.5rem 0;padding-left:.3rem}
.qlink{font-family:var(--sans);margin-top:1.5rem}
.qlink a{font-size:.95rem;border-bottom:1px solid var(--gold)}

/* ---- quiz (portable engine themes off these host vars) ---- */
#quiz{--qz-main:var(--green);--qz-deep:var(--green-dk);--qz-gold:var(--gold);
  --qz-sea:var(--green);--qz-card:#fbf6e7;--card:#fbf6e7}

/* ---- responsive ---- */
@media (max-width:760px){
  body{font-size:17px}
  .hero-title{font-size:2.5rem}
  .site-head{gap:.7rem}
  .site-head nav{gap:.8rem}
}