:root{
  --ink: #3a141d;
  --ink-2: #451a26;
  --parchment: #eae2cc;
  --parchment-2: #f4eedd;
  --rubric: #9c3b26;
  --brass: #8c6d2f;
  --charcoal: #2b2620;
  --cream: #ede7d6;
  --hair: rgba(43,38,32,0.16);
  --hair-dark: rgba(237,231,214,0.18);
  --max: 700px;
  --wide: 1040px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--parchment);
  color:var(--charcoal);
  font-family:'Spectral', Georgia, serif;
  font-weight:400;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3{font-family:'Spectral', Georgia, serif;font-weight:500;margin:0;}
.label{
  font-family:'IBM Plex Sans', sans-serif;
  font-size:0.78rem;
  letter-spacing:0.03em;
  color:var(--brass);
}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:40;
  border-bottom:1px solid var(--hair);
}
header::before{
  content:"";position:absolute;inset:0;
  background:rgba(234,226,204,0.92);
  backdrop-filter:blur(6px);
  z-index:-1;
}
.nav-inner{
  max-width:var(--wide);
  margin:0 auto;
  padding:16px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;align-items:center;gap:12px;
  text-decoration:none;
  color:var(--charcoal);
}
.seal{
  width:34px;height:34px;border-radius:50%;
  border:1.4px solid var(--brass);
  display:flex;align-items:center;justify-content:center;
  font-family:'Spectral', serif;font-size:1rem;font-style:italic;color:var(--rubric);
  flex-shrink:0;
}
.brand-name{
  font-family:'Spectral', serif;font-size:1.02rem;font-weight:500;
  letter-spacing:0.01em;
}
.brand-name span{display:block;font-size:0.66rem;font-family:'IBM Plex Sans',sans-serif;color:var(--brass);letter-spacing:0.04em;margin-top:1px;}

nav.links{display:flex;gap:30px;font-family:'IBM Plex Sans',sans-serif;font-size:0.86rem;}
nav.links a{
  text-decoration:none;color:var(--charcoal);
  position:relative;padding-bottom:3px;
}
nav.links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--rubric);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
nav.links a:hover::after{transform:scaleX(1);}
nav.links a.active::after{transform:scaleX(1);}
nav.links a.active{color:var(--rubric);}

.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:6px;}
.menu-btn span{display:block;width:22px;height:1.5px;background:var(--charcoal);margin:5px 0;}

/* ---------- Hero (home) ---------- */
.hero{
  background:var(--ink);
  color:var(--cream);
  padding:120px 28px 100px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 15% 20%, rgba(140,109,47,0.18), transparent 55%),
    radial-gradient(ellipse at 85% 85%, rgba(156,59,38,0.14), transparent 55%);
  pointer-events:none;
}
.hero-inner{max-width:var(--max);margin:0 auto;position:relative;text-align:center;}
.hero-eyebrow{
  font-family:'Spectral', serif;font-style:italic;font-size:1rem;color:#c9b98a;
  margin-bottom:26px;letter-spacing:0.01em;
}
.hero h1{
  font-size:clamp(2.1rem, 5vw, 3.1rem);
  font-weight:400;
  line-height:1.22;
  color:var(--cream);
}
.hero h1 em{font-style:italic;color:#e7dcb8;font-weight:500;}
.hero-rule{
  width:64px;height:1px;background:var(--brass);margin:34px auto;opacity:.8;
}
.hero-sub{
  font-size:1.02rem;color:#c7bfa4;max-width:520px;margin:0 auto 42px;
  font-weight:300;
}

/* ---------- Page header (inner pages) ---------- */
.page-hero{
  background:var(--ink);color:var(--cream);
  padding:76px 28px 60px;
  position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 80% 10%, rgba(140,109,47,0.16), transparent 55%);
  pointer-events:none;
}
.page-hero-inner{max-width:var(--wide);margin:0 auto;position:relative;}
.page-hero .kicker{color:#a89a71;}
.page-hero h1{
  font-size:clamp(1.8rem,4vw,2.6rem);
  font-weight:400;color:var(--cream);
  margin-top:10px;max-width:640px;
}
.page-hero p.dek{color:#c7bfa4;max-width:560px;margin-top:16px;font-size:1.02rem;font-weight:300;}

/* ---------- Buttons ---------- */
.cta{
  display:inline-block;
  font-family:'IBM Plex Sans',sans-serif;font-size:0.86rem;letter-spacing:.02em;
  text-decoration:none;color:var(--ink);
  background:var(--parchment-2);
  padding:13px 30px;
  border:1px solid var(--parchment-2);
  transition:background .2s ease, color .2s ease, border-color .2s ease;
  cursor:pointer;
}
.cta:hover{background:transparent;color:var(--parchment-2);border-color:var(--parchment-2);}
.cta.ghost{background:transparent;color:var(--cream);border:1px solid rgba(237,231,214,0.4);}
.cta.ghost:hover{background:rgba(237,231,214,0.08);}
.cta.rubric{background:transparent;color:var(--rubric);border-color:var(--rubric);}
.cta.rubric:hover{background:var(--rubric);color:var(--cream);}

/* ---------- Section shell ---------- */
section{padding:96px 28px;}
.shell{max-width:var(--max);margin:0 auto;}
.shell-wide{max-width:var(--wide);margin:0 auto;}

.kicker{font-family:'IBM Plex Sans',sans-serif;font-size:0.78rem;color:var(--brass);margin-bottom:10px;}
h2.section-title{font-size:clamp(1.5rem,3vw,2rem);font-weight:400;margin-bottom:28px;line-height:1.3;}

/* Welcome / drop cap */
.welcome p{font-size:1.08rem;margin:0 0 20px;color:#3a3327;}
.welcome p.lead::first-letter{
  font-family:'Spectral',serif;font-size:3.4rem;float:left;line-height:0.8;
  padding-right:10px;margin-top:6px;color:var(--rubric);font-weight:500;
}
blockquote.pull{
  font-family:'Spectral',serif;font-style:italic;font-size:1.5rem;color:var(--rubric);
  border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);
  padding:30px 0;margin:44px 0;text-align:center;font-weight:400;
}

/* Why it matters — questions */
.matters{background:var(--parchment-2);}
.matters-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 60px;margin:40px 0 48px;}
.q-item{padding:22px 0;border-top:1px solid var(--hair);display:flex;gap:16px;}
.q-item:last-child, .q-item:nth-last-child(2){border-bottom:1px solid var(--hair);}
.q-mark{font-family:'Spectral',serif;font-style:italic;color:var(--rubric);font-size:1.1rem;flex-shrink:0;}
.q-text{font-size:1.02rem;}
.matters p{font-size:1.04rem;color:#3a3327;margin:0 0 18px;}
.matters .closer{font-style:italic;font-size:1.15rem;color:var(--charcoal);margin-top:36px;}

/* Featured / detail principle */
.principle-feature{background:var(--ink);color:var(--cream);}
.pf-grid{display:grid;grid-template-columns:200px 1fr;gap:56px;align-items:center;}
.pf-num{font-family:'Spectral',serif;font-size:5.5rem;font-weight:300;color:var(--rubric);line-height:1;}
.pf-num span{display:block;font-family:'IBM Plex Sans',sans-serif;font-size:0.72rem;color:#a89a71;letter-spacing:.04em;margin-top:10px;}
.pf-title{font-size:clamp(1.5rem,3vw,2.1rem);color:var(--cream);line-height:1.3;margin-bottom:16px;}
.pf-body{color:#c7bfa4;font-size:1rem;margin-bottom:22px;max-width:480px;}
.pf-link{font-family:'IBM Plex Sans',sans-serif;font-size:0.85rem;color:#e7dcb8;text-decoration:none;border-bottom:1px solid rgba(231,220,184,0.4);padding-bottom:2px;}
.pf-link:hover{border-color:#e7dcb8;}
.pf-link.dark{color:var(--rubric);border-color:rgba(156,59,38,0.4);}
.pf-link.dark:hover{border-color:var(--rubric);}

/* Triptych */
.triptych{display:grid;grid-template-columns:1fr 1fr 1fr;}
.tri-item{padding:0 36px;text-align:center;}
.tri-item + .tri-item{border-left:1px solid var(--hair);}
.tri-item h3{font-size:1.15rem;font-weight:500;margin-bottom:14px;color:var(--rubric);font-style:italic;}
.tri-item p{font-size:0.96rem;color:#4a4234;margin:0;}

/* Colophon / two-col note */
.colophon{background:var(--parchment-2);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);}
.colophon .shell-wide{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.colophon h2{font-size:1.3rem;margin-bottom:14px;}
.colophon p{font-size:0.98rem;color:#3a3327;margin:0 0 14px;}

/* Principles list (index + listing page) */
.principle-list{display:flex;flex-direction:column;}
.p-row{
  display:grid;grid-template-columns:90px 1fr auto;align-items:center;gap:24px;
  padding:26px 0;border-top:1px solid var(--hair);text-decoration:none;color:inherit;
}
.principle-list .p-row:last-child{border-bottom:1px solid var(--hair);}
.p-row .p-idx{font-family:'Spectral',serif;font-style:italic;font-size:1.6rem;color:var(--rubric);}
.p-row .p-name{font-size:1.08rem;}
.p-row .p-name small{display:block;font-family:'IBM Plex Sans',sans-serif;font-size:0.78rem;color:var(--brass);margin-top:4px;letter-spacing:.02em;}
.p-row .p-go{font-family:'IBM Plex Sans',sans-serif;font-size:0.82rem;color:var(--charcoal);opacity:0;transition:opacity .2s ease, transform .2s ease;transform:translateX(-6px);}
.p-row:hover .p-go{opacity:1;transform:translateX(0);}
.p-row:hover .p-name{color:var(--rubric);}

/* Author page */
.author-grid{display:grid;grid-template-columns:260px 1fr;gap:56px;align-items:start;}
.author-portrait{
  aspect-ratio:4/5;background:var(--ink-2);border:1px solid var(--hair);
  width:100%;object-fit:cover;
}
.author-grid h1{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:400;margin-bottom:4px;}
.author-grid .role{font-family:'IBM Plex Sans',sans-serif;font-size:0.85rem;color:var(--brass);margin-bottom:24px;display:block;}
.author-grid p{font-size:1.02rem;color:#3a3327;margin:0 0 18px;}

/* Store / publications */
.store-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair);margin-top:40px;}
.plate{background:var(--parchment);padding:36px;position:relative;}
.plate::before{content:"";position:absolute;top:14px;left:14px;width:14px;height:14px;border-top:1px solid var(--brass);border-left:1px solid var(--brass);}
.plate::after{content:"";position:absolute;bottom:14px;right:14px;width:14px;height:14px;border-bottom:1px solid var(--brass);border-right:1px solid var(--brass);}
.plate .p-kind{font-family:'IBM Plex Sans',sans-serif;font-size:0.74rem;color:var(--brass);letter-spacing:.03em;margin-bottom:14px;}
.plate-cover{
  aspect-ratio:3/4;width:100%;max-width:260px;margin:0 auto 20px;overflow:hidden;
  border:1px solid var(--hair);background:var(--ink-2);
  display:flex;align-items:center;justify-content:center;
}
.plate-cover img{width:100%;height:100%;object-fit:cover;}
.plate-cover.no-cover img{display:none;}
.plate-cover.no-cover{
  position:relative;
}
.plate-cover.no-cover::after{
  content:"Cover coming soon";
  font-family:'Spectral',serif;font-style:italic;font-size:0.8rem;color:#a89a71;
  text-align:center;padding:0 14px;
}
.cover-thumbs{display:flex;gap:10px;margin:-6px auto 18px;max-width:260px;justify-content:center;}
.cover-thumbs img{
  width:52px;height:68px;object-fit:cover;
  border:1px solid var(--hair);cursor:pointer;opacity:0.7;
  transition:opacity .15s ease, border-color .15s ease;
}
.cover-thumbs img:hover{opacity:1;border-color:var(--brass);}
.plate h3{font-size:1.2rem;font-weight:500;margin-bottom:10px;line-height:1.35;}
.plate p{font-size:0.94rem;color:#4a4234;margin:0 0 20px;}
.plate .price{font-family:'IBM Plex Sans',sans-serif;font-size:0.9rem;color:var(--charcoal);margin-bottom:18px;display:block;}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.contact-info dt{font-family:'IBM Plex Sans',sans-serif;font-size:0.76rem;color:var(--brass);letter-spacing:.02em;margin-top:26px;}
.contact-info dt:first-child{margin-top:0;}
.contact-info dd{margin:6px 0 0;font-size:1.02rem;}
.contact-info a{text-decoration:none;border-bottom:1px solid var(--hair);}
.contact-info a:hover{border-color:var(--rubric);color:var(--rubric);}
form.contact-form{display:flex;flex-direction:column;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-family:'IBM Plex Sans',sans-serif;font-size:0.78rem;color:var(--brass);letter-spacing:.02em;}
.field input, .field textarea{
  font-family:'Spectral',serif;font-size:1rem;color:var(--charcoal);
  background:var(--parchment-2);border:1px solid var(--hair);padding:12px 14px;
  border-radius:0;
}
.field input:focus, .field textarea:focus{outline:none;border-color:var(--rubric);}
.field textarea{resize:vertical;min-height:120px;}

/* Footer */
footer{background:var(--ink);color:#a89a71;padding:56px 28px 40px;}
.foot-inner{max-width:var(--wide);margin:0 auto;display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:28px;}
.foot-brand{font-family:'Spectral',serif;font-style:italic;color:var(--cream);font-size:1.05rem;}
.foot-links{display:flex;gap:22px;font-family:'IBM Plex Sans',sans-serif;font-size:0.82rem;}
.foot-links a{text-decoration:none;color:#a89a71;transition:color .2s ease;}
.foot-links a:hover{color:var(--cream);}
.foot-bottom{max-width:var(--wide);margin:34px auto 0;border-top:1px solid rgba(168,154,113,0.25);padding-top:20px;font-family:'IBM Plex Sans',sans-serif;font-size:0.76rem;color:#7d7256;}

/* Reveal on load */
.hero-eyebrow,.hero h1,.hero-rule,.hero-sub,.hero .cta-row{opacity:0;animation:rise .8s ease forwards;}
.hero-eyebrow{animation-delay:.05s;}
.hero h1{animation-delay:.15s;}
.hero-rule{animation-delay:.32s;}
.hero-sub{animation-delay:.4s;}
.hero .cta-row{animation-delay:.52s;}
@keyframes rise{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion: reduce){
  .hero-eyebrow,.hero h1,.hero-rule,.hero-sub,.hero .cta-row{animation:none;opacity:1;}
  html{scroll-behavior:auto;}
}

a:focus-visible, button:focus-visible{outline:2px solid var(--rubric);outline-offset:3px;}

.no-copy{
  user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;
}

/* Principle prev/next navigation */
.principle-nav{
  max-width:var(--max);margin:0 auto;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:32px 28px 0;
  font-family:'IBM Plex Sans',sans-serif;font-size:0.82rem;
}
.principle-nav-inner{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  width:100%;border-top:1px solid var(--hair);padding-top:24px;
}
.principle-nav a{text-decoration:none;color:var(--charcoal);transition:color .2s ease;}
.principle-nav a:hover{color:var(--rubric);}
.principle-nav .nav-prev, .principle-nav .nav-next{
  display:block;max-width:48%;min-width:0;
}
.principle-nav .nav-prev{text-align:left;}
.principle-nav .nav-next{text-align:right;margin-left:auto;}
.principle-nav .nav-prev span, .principle-nav .nav-next span{display:block;font-size:0.72rem;color:var(--brass);margin-bottom:3px;}
.principle-nav .nav-all{color:var(--brass);white-space:nowrap;text-align:center;}
.principle-nav .nav-spacer{flex:1;}
@media (max-width:600px){
  .principle-nav-inner{flex-direction:column;gap:14px;}
  .principle-nav .nav-prev, .principle-nav .nav-next{max-width:100%;margin-left:0;text-align:center;}
}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .matters-grid{grid-template-columns:1fr;gap:0;}
  .q-item:nth-last-child(2){border-bottom:none;}
  .pf-grid{grid-template-columns:1fr;gap:24px;text-align:left;}
  .pf-num{font-size:3.6rem;}
  .triptych{grid-template-columns:1fr;gap:36px;}
  .tri-item{border-left:none !important;padding:0;}
  .tri-item + .tri-item{border-top:1px solid var(--hair);padding-top:32px;}
  .colophon .shell-wide{grid-template-columns:1fr;}
  .author-grid{grid-template-columns:1fr;}
  .author-portrait{max-width:220px;}
  .store-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:40px;}
  .p-row{grid-template-columns:56px 1fr;}
  .p-row .p-go{display:none;}
}
@media (max-width:720px){
  nav.links{
    position:fixed;inset:64px 0 0 0;background:var(--parchment);
    flex-direction:column;padding:30px 28px;gap:0;
    transform:translateX(100%);transition:transform .3s ease;
    border-top:1px solid var(--hair);
    z-index:50;
  }
  nav.links.open{transform:translateX(0);}
  nav.links a{padding:16px 0;border-bottom:1px solid var(--hair);font-size:1rem;}
  .menu-btn{display:block;}
  .hero{padding:90px 22px 70px;}
  .page-hero{padding:64px 22px 48px;}
  section{padding:70px 22px;}
}