/* ---------------------------------------------------------------
   Ian S. Markham — author site
   Palette, type scale and layout primitives live here.
   --------------------------------------------------------------- */
:root{
  --paper:#faf8f4;
  --paper-2:#f2eee7;
  --ink:#1e1c1a;
  --ink-soft:#4f4a44;
  --ink-faint:#7a736a;
  --rule:#e0d9cd;
  --accent:#23495c;        /* deep slate blue */
  --accent-dark:#17313e;
  --gold:#9c6f22;
  --max:1120px;
  --serif:"Source Serif 4",Charter,"Iowan Old Style",Georgia,serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--serif);font-size:1.0625rem;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-underline-offset:2px}
a:hover{color:var(--accent-dark)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.5rem}
.narrow{max-width:44rem}

h1,h2,h3{font-weight:600;line-height:1.15;letter-spacing:-.01em;margin:0 0 .5rem}
h1{font-size:clamp(2.3rem,6vw,3.5rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.1rem)}
h3{font-size:1.1rem}
p{margin:0 0 1.1rem}
.lede{font-size:1.2rem;color:var(--ink-soft)}

/* Small caps label used above section headings */
.eyebrow{
  font-family:var(--sans);font-size:.72rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--gold);
  margin:0 0 .6rem;
}

/* ---------- header / nav ---------- */
.site-header{
  border-bottom:1px solid var(--rule);background:rgba(250,248,244,.92);
  backdrop-filter:saturate(1.4) blur(6px);position:sticky;top:0;z-index:20;
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;
  gap:1rem;min-height:4.25rem;flex-wrap:wrap}
.brand{font-size:1.15rem;font-weight:600;letter-spacing:-.01em;
  text-decoration:none;color:var(--ink)}
.brand span{display:block;font-family:var(--sans);font-size:.66rem;font-weight:500;
  letter-spacing:.15em;text-transform:uppercase;color:var(--ink-faint);margin-top:.15rem}
.nav{display:flex;gap:1.6rem;font-family:var(--sans);font-size:.9rem}
.nav a{text-decoration:none;color:var(--ink-soft);padding:.25rem 0;
  border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--gold)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  font-family:var(--sans);font-size:.86rem;font-weight:600;line-height:1;
  padding:.72rem 1.15rem;border-radius:5px;text-decoration:none;
  border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s;
}
.btn-amazon{background:var(--accent);color:#fff}
.btn-amazon:hover{background:var(--accent-dark);color:#fff}
.btn-ghost{background:transparent;color:var(--ink-soft);border-color:var(--rule)}
.btn-ghost:hover{border-color:var(--ink-faint);color:var(--ink)}
.btn-lg{font-size:.95rem;padding:.85rem 1.5rem}

/* ---------- hero ---------- */
.hero{padding:4rem 0 3rem;border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:1fr minmax(240px,300px);
  gap:3.5rem;align-items:start}
.hero h1{margin-bottom:.75rem}
.roles{font-family:var(--sans);font-size:.82rem;font-weight:500;letter-spacing:.13em;
  text-transform:uppercase;color:var(--gold);margin:0 0 1.75rem}
.portrait{border-radius:6px;box-shadow:0 1px 2px rgba(0,0,0,.1),0 12px 28px -12px rgba(0,0,0,.3);
  width:100%;max-width:300px}
.portrait-cap{font-family:var(--sans);font-size:.75rem;color:var(--ink-faint);
  margin:.7rem 0 0;text-align:center}

/* ---------- sections ---------- */
.section{padding:3.5rem 0}
.section + .section{border-top:1px solid var(--rule)}
.section-head{margin-bottom:2.25rem}
.section-head p{color:var(--ink-soft);max-width:44rem;margin:0}

/* ---------- book grid ---------- */
.books{display:grid;gap:2.5rem 2rem;
  grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.book{display:flex;flex-direction:column}
.book-cover{
  display:block;aspect-ratio:2/3;margin-bottom:.9rem;border-radius:3px;
  background:var(--paper-2);overflow:hidden;position:relative;
  box-shadow:0 1px 2px rgba(0,0,0,.12),0 10px 22px -12px rgba(0,0,0,.42);
  transition:transform .18s ease, box-shadow .18s ease;
}
.book-cover:hover{transform:translateY(-3px);
  box-shadow:0 2px 4px rgba(0,0,0,.14),0 16px 30px -12px rgba(0,0,0,.5)}
.book-cover img{width:100%;height:100%;object-fit:cover}
/* Typographic stand-in when no jacket image is available */
.cover-fallback{
  width:100%;height:100%;padding:1.5rem 1.2rem;display:flex;flex-direction:column;
  justify-content:space-between;gap:1rem;
  background:linear-gradient(160deg,#2c5468,#17313e);color:#f4efe6;text-align:left;
}
.cover-fallback .cf-title{font-family:var(--serif);font-size:1.18rem;line-height:1.22;
  font-weight:600;letter-spacing:-.01em}
.cover-fallback .cf-title::after{content:"";display:block;width:2rem;height:2px;
  background:#c9b98f;margin-top:.7rem}
.cover-fallback .cf-meta{font-family:var(--sans);font-size:.62rem;letter-spacing:.12em;
  text-transform:uppercase;color:#c9b98f}
.book h3{font-size:1.02rem;line-height:1.3;margin:0 0 .2rem}
.book h3 a{color:var(--ink);text-decoration:none}
.book h3 a:hover{color:var(--accent)}
.book-meta{font-family:var(--sans);font-size:.76rem;color:var(--ink-faint);
  margin:0 0 .5rem}
.book-desc{font-size:.9rem;color:var(--ink-soft);line-height:1.5;margin:0 0 .85rem}
.book-links{margin-top:auto;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.book-links .plain{font-family:var(--sans);font-size:.78rem;text-decoration:none;
  color:var(--ink-faint);border-bottom:1px solid var(--rule)}
.book-links .plain:hover{color:var(--accent);border-color:var(--accent)}

/* Featured books on the home page get a roomier treatment */
.books-featured{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:2.75rem 2.25rem}

/* ---------- publications page groups ---------- */
.group{padding:3rem 0}
.group + .group{border-top:1px solid var(--rule)}
.group-head{display:flex;align-items:baseline;gap:1rem;margin-bottom:2rem;
  flex-wrap:wrap}
.group-head h2{margin:0}
.count{font-family:var(--sans);font-size:.78rem;color:var(--ink-faint)}
.jump{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.5rem 0 0;font-family:var(--sans);
  font-size:.83rem}
.jump a{text-decoration:none;color:var(--ink-soft);border:1px solid var(--rule);
  border-radius:100px;padding:.4rem .9rem;background:#fff}
.jump a:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- articles list ---------- */
.articles{list-style:none;padding:0;margin:0;max-width:52rem}
.articles li{padding:1rem 0;border-bottom:1px solid var(--rule)}
.articles li:first-child{border-top:1px solid var(--rule)}
.articles .t{display:block;font-weight:600}
.articles .m{font-family:var(--sans);font-size:.8rem;color:var(--ink-faint)}

/* ---------- topics ---------- */
.topics{display:grid;gap:.75rem;padding:0;margin:0;list-style:none;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.topics li{background:#fff;border:1px solid var(--rule);border-radius:5px;
  padding:.85rem 1.1rem;font-size:.95rem}

/* ---------- form ---------- */
.form{max-width:40rem;margin-top:1.5rem}
.field{margin-bottom:1.1rem}
.field label{display:block;font-family:var(--sans);font-size:.82rem;font-weight:600;
  margin-bottom:.35rem;color:var(--ink-soft)}
.field input,.field select,.field textarea{
  width:100%;font-family:var(--serif);font-size:1rem;color:var(--ink);
  padding:.65rem .8rem;border:1px solid var(--rule);border-radius:5px;background:#fff;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.field textarea{min-height:8rem;resize:vertical}
.two-up{display:grid;grid-template-columns:1fr 1fr;gap:0 1.1rem}
.hp{position:absolute;left:-9999px}

/* ---------- contact card ---------- */
.card{background:#fff;border:1px solid var(--rule);border-radius:6px;
  padding:1.5rem 1.75rem;max-width:26rem}
.card p{margin:0 0 .4rem;font-size:.95rem}
.card .k{font-family:var(--sans);font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-faint);display:block}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--rule);background:var(--paper-2);
  margin-top:2rem;padding:2.5rem 0}
.site-footer .wrap{display:flex;justify-content:space-between;gap:1.5rem;
  flex-wrap:wrap;align-items:flex-start}
.site-footer .fname{font-weight:600}
.site-footer .froles{font-family:var(--sans);font-size:.75rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-faint);margin:.2rem 0 0}
.site-footer nav{display:flex;gap:1.25rem;font-family:var(--sans);font-size:.87rem}
.site-footer nav a{color:var(--ink-soft);text-decoration:none}
.site-footer nav a:hover{color:var(--accent)}
.copyright{font-family:var(--sans);font-size:.75rem;color:var(--ink-faint);
  width:100%;margin:1.5rem 0 0}

@media (max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:2.25rem}
  .portrait{max-width:260px;margin:0 auto}
  .hero{padding:2.5rem 0 2rem}
  .nav{gap:1.15rem}
}
@media (max-width:520px){
  .books{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:2rem 1.25rem}
  .two-up{grid-template-columns:1fr}
  .site-header .wrap{min-height:0;padding-top:.85rem;padding-bottom:.85rem}
}
@media print{.site-header,.site-footer,.jump{display:none}}

/* Category blurb on the publications page */
.group > .book-desc{max-width:44rem;margin:-1.25rem 0 1.75rem;font-size:.95rem}

/* Anchor targets must clear the sticky header */
[id]{scroll-margin-top:5.5rem}