/* ============================================================
   The Skeptical Scientist — academic-editorial design system
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;1,8..60,400&family=Manrope:wght@400;500;600;700&display=swap');

:root{
  --paper:#f7f5ef;
  --paper-2:#efece4;
  --surface:#ffffff;
  --ink:#171a1f;
  --ink-2:#2d3138;
  --muted:#62677a;
  --rule:#d9d4c7;
  --rule-deep:#bcb6a4;
  --oxblood:#8a1a1a;
  --oxblood-deep:#651010;
  --moss:#3d4a3a;

  --display:'EB Garamond',Georgia,serif;
  --body:'Source Serif 4',Georgia,serif;
  --ui:'Manrope','Helvetica Neue',sans-serif;

  --measure:36rem;
  --maxw:72rem;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--body);font-size:1.07rem;line-height:1.7;
  color:var(--ink);background:var(--paper);
  font-feature-settings:"ss01","liga","kern";
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--oxblood);text-underline-offset:3px;
  text-decoration:underline;text-decoration-thickness:1px;
  text-decoration-color:rgba(138,26,26,.35)}
a:hover{color:var(--oxblood-deep);text-decoration-color:var(--oxblood-deep)}
::selection{background:var(--oxblood);color:#fff}

.wrap{max-width:var(--maxw);margin-inline:auto;
  padding-inline:clamp(1.2rem,4vw,2.6rem)}

/* small-caps label */
.label{font-family:var(--ui);font-weight:600;font-size:.72rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--oxblood)}
.label--muted{color:var(--muted)}

/* hairline rule used as decorative divider */
.rule{height:1px;background:var(--rule);width:100%;margin:1.4rem 0}
.rule--thick{height:3px;background:var(--ink);width:48px;margin:1rem 0}

/* ============================================================
   HEADER
   ============================================================ */
.site-head{background:var(--paper);border-bottom:1px solid var(--rule);
  position:sticky;top:0;z-index:30;backdrop-filter:blur(8px)}
.site-head .wrap{display:flex;align-items:center;gap:2rem;min-height:72px}
.brand{text-decoration:none;color:var(--ink);
  display:flex;align-items:baseline;gap:.65rem;flex-shrink:0}
.brand-name{font-family:var(--display);font-weight:600;font-size:1.35rem;
  letter-spacing:.005em;line-height:1}
.brand-sub{font-family:var(--ui);font-weight:600;font-size:.66rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
.nav{margin-left:auto;display:flex;gap:1.7rem}
.nav a{font-family:var(--ui);font-weight:500;font-size:.86rem;
  color:var(--ink-2);text-decoration:none;letter-spacing:.02em;
  padding-block:.4rem;position:relative}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-1px;
  height:2px;background:var(--oxblood);transition:right .25s ease}
.nav a:hover::after,.nav a[aria-current]::after{right:0}
.nav a:hover,.nav a[aria-current]{color:var(--oxblood)}

/* ============================================================
   HERO  (homepage)
   ============================================================ */
.hero{padding-block:clamp(3.4rem,8vw,6rem);position:relative;
  border-bottom:1px solid var(--rule)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,transparent,var(--oxblood) 30%,
                              var(--oxblood) 70%,transparent)}
.hero .wrap{display:grid;grid-template-columns:1.5fr 1fr;
  gap:clamp(2rem,5vw,4rem);align-items:center}
.hero-main h1{font-family:var(--display);font-weight:500;font-style:italic;
  font-size:clamp(2.8rem,6.4vw,4.6rem);line-height:1;letter-spacing:-.01em;
  margin:1.3rem 0 1.2rem;color:var(--ink)}
.hero-main h1 em{color:var(--oxblood);font-style:italic}
.hero-tagline{font-size:1.25rem;color:var(--ink-2);max-width:34rem;
  line-height:1.55;font-style:italic;font-family:var(--display)}
.credo{background:var(--surface);border:1px solid var(--rule);
  border-left:3px solid var(--oxblood);padding:1.5rem 1.6rem;
  border-radius:2px}
.credo .label{margin-bottom:.7rem;display:block}
.credo h3{font-family:var(--display);font-weight:600;font-size:1.4rem;
  line-height:1.15;margin-bottom:1rem}
.credo ol{list-style:none;counter-reset:c;padding:0;margin:0}
.credo li{counter-increment:c;padding-left:2.2rem;position:relative;
  margin-bottom:.65rem;font-size:1rem;line-height:1.55}
.credo li::before{content:counter(c,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--ui);font-weight:700;
  font-size:.78rem;color:var(--oxblood);letter-spacing:.02em;
  padding-top:.18rem;width:1.7rem;text-align:right;
  border-right:1px solid var(--rule);padding-right:.5rem}

/* ============================================================
   SECTIONS
   ============================================================ */
.section{padding-block:clamp(2.6rem,6vw,4.5rem)}
.section-head{margin-bottom:2.4rem;max-width:50rem}
.section-head .label{display:block;margin-bottom:.6rem}
.section-head h2{font-family:var(--display);font-weight:500;
  font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.08;letter-spacing:-.01em}
.section-head p{color:var(--muted);margin-top:.7rem;font-size:1.05rem;
  max-width:34rem}

/* feature dossier card */
.dossier-card{background:var(--surface);border:1px solid var(--rule);
  border-radius:3px;padding:2.4rem 2.4rem;display:grid;
  grid-template-columns:1fr auto;gap:2rem;align-items:start;
  text-decoration:none;color:var(--ink);transition:.22s;position:relative;
  overflow:hidden}
.dossier-card:hover{border-color:var(--oxblood);
  box-shadow:0 18px 38px -24px rgba(23,26,31,.25);
  transform:translateY(-2px);text-decoration:none}
.dossier-card::before{content:"//";position:absolute;top:1.3rem;right:1.6rem;
  font-family:var(--ui);font-weight:700;font-size:.78rem;
  letter-spacing:.18em;color:var(--rule-deep);
  text-transform:uppercase}
.dossier-card .label{display:block;margin-bottom:.7rem}
.dossier-card h3{font-family:var(--display);font-weight:500;
  font-size:clamp(1.5rem,3.2vw,2.1rem);line-height:1.12;
  letter-spacing:-.01em;margin-bottom:.7rem}
.dossier-card p{color:var(--muted);font-size:1.02rem;max-width:38rem}
.dossier-card .next{font-family:var(--ui);font-weight:600;font-size:.78rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--oxblood);
  margin-top:1.4rem;display:inline-flex;align-items:center;gap:.4rem}
.dossier-card .files{font-family:var(--ui);font-size:.78rem;color:var(--muted);
  letter-spacing:.04em;text-align:right;border:1px solid var(--rule);
  border-radius:2px;padding:1rem 1.1rem;background:var(--paper)}
.dossier-card .files strong{font-family:var(--display);font-weight:600;
  font-size:1.7rem;color:var(--ink);display:block;line-height:1}

/* ledger entry (small index entries — blog, etc.) */
.ledger{border-top:1px solid var(--rule)}
.ledger-row{border-bottom:1px solid var(--rule);padding:1.4rem 0;
  display:grid;grid-template-columns:90px 1fr auto;gap:2rem;
  align-items:baseline;text-decoration:none;color:inherit}
.ledger-row:hover{background:var(--paper-2);
  margin-inline:-1rem;padding-inline:1rem;text-decoration:none}
.ledger-num{font-family:var(--ui);font-size:.78rem;letter-spacing:.08em;
  color:var(--muted)}
.ledger-title{font-family:var(--display);font-weight:500;font-size:1.35rem;
  line-height:1.2}
.ledger-row:hover .ledger-title{color:var(--oxblood)}
.ledger-meta{font-family:var(--ui);font-size:.76rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--muted);white-space:nowrap}

/* contact card */
.contact-card{background:var(--surface);border:1px solid var(--rule);
  padding:2rem 2.2rem;border-radius:3px;max-width:42rem}
.contact-card .label{display:block;margin-bottom:.6rem}
.contact-card h3{font-family:var(--display);font-weight:500;font-size:1.8rem;
  margin-bottom:.7rem;line-height:1.15}
.contact-card p{color:var(--muted)}
.contact-mail{display:inline-flex;align-items:center;gap:.7rem;
  margin-top:1.3rem;padding:.9rem 1.3rem;
  background:var(--ink);color:#fff !important;text-decoration:none !important;
  font-family:var(--ui);font-weight:600;font-size:.95rem;border-radius:2px;
  transition:.18s}
.contact-mail:hover{background:var(--oxblood)}

/* ============================================================
   ARTICLE / page-content layout
   ============================================================ */
.page-head{padding-block:clamp(2.8rem,6vw,4.5rem);
  border-bottom:1px solid var(--rule);position:relative}
.page-head .label{display:block;margin-bottom:.7rem}
.page-head h1{font-family:var(--display);font-weight:500;font-style:italic;
  font-size:clamp(2.4rem,5vw,4rem);line-height:1.05;letter-spacing:-.012em;
  max-width:24ch;margin-bottom:.8rem}
.page-head .deck{font-size:1.18rem;color:var(--ink-2);font-style:italic;
  font-family:var(--display);max-width:36rem;line-height:1.5}
.page-meta{font-family:var(--ui);font-size:.78rem;letter-spacing:.07em;
  text-transform:uppercase;color:var(--muted);margin-top:1.2rem;
  display:flex;align-items:center;gap:.7rem}
.page-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--rule-deep)}

.article{max-width:var(--measure);margin:0 auto;
  padding-block:clamp(2.4rem,5vw,3.6rem)}
.article p{margin-bottom:1.3rem}
.article > p:first-of-type::first-letter{
  font-family:var(--display);font-weight:600;float:left;
  font-size:4.5rem;line-height:.88;padding:.32rem .6rem 0 0;
  color:var(--oxblood)}
.article h2{font-family:var(--display);font-weight:500;font-size:1.85rem;
  line-height:1.15;margin:2.6rem 0 1rem;letter-spacing:-.01em;
  padding-top:1.6rem;border-top:1px solid var(--rule)}
.article h3{font-family:var(--display);font-weight:600;font-size:1.3rem;
  margin:1.9rem 0 .7rem;color:var(--ink)}
.article h4{font-family:var(--ui);font-weight:700;font-size:.95rem;
  letter-spacing:.04em;margin:1.6rem 0 .6rem;text-transform:uppercase}
.article ul,.article ol{margin:0 0 1.4rem 1.4rem}
.article li{margin-bottom:.55rem}
.article blockquote{margin:1.7rem 0;padding:1.3rem 1.4rem;
  background:var(--paper-2);border-left:3px solid var(--oxblood);
  font-style:italic;font-family:var(--display);font-size:1.12rem;
  color:var(--ink-2)}
.article img{border-radius:3px;margin:1.6rem 0;
  box-shadow:0 14px 32px -20px rgba(23,26,31,.25)}

.article-foot{max-width:var(--measure);margin:2rem auto 0;
  border-top:1px solid var(--rule);padding-top:1.8rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:var(--ui);font-size:.85rem}
.back-link{text-decoration:none;font-weight:600;color:var(--oxblood);
  text-transform:uppercase;letter-spacing:.06em;font-size:.78rem}
.back-link:hover{color:var(--oxblood-deep)}

/* ============================================================
   FOOTER
   ============================================================ */
.site-foot{border-top:1px solid var(--rule);padding-block:3.2rem 2rem;
  background:var(--paper-2);margin-top:2rem;color:var(--ink-2)}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2.5rem;
  padding-bottom:2.2rem;border-bottom:1px solid var(--rule)}
.foot-brand{font-family:var(--display);font-weight:600;font-size:1.4rem;
  font-style:italic;line-height:1;color:var(--ink)}
.foot-top p{color:var(--muted);font-size:.95rem;max-width:24rem;
  margin-top:.7rem}
.foot-top h4{font-family:var(--ui);font-weight:700;font-size:.72rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ink);
  margin-bottom:.9rem}
.foot-links{display:flex;flex-direction:column;gap:.5rem}
.foot-links a{color:var(--ink-2);text-decoration:none;font-size:.95rem}
.foot-links a:hover{color:var(--oxblood)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;
  padding-top:1.5rem;font-family:var(--ui);font-size:.78rem;
  letter-spacing:.04em;color:var(--muted)}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);
  animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
.reveal.d1{animation-delay:.09s}.reveal.d2{animation-delay:.18s}
.reveal.d3{animation-delay:.28s}.reveal.d4{animation-delay:.38s}
@keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.reveal{animation:none;opacity:1;transform:none}}

@media (max-width:800px){
  .hero .wrap{grid-template-columns:1fr}
  .dossier-card{grid-template-columns:1fr}
  .dossier-card .files{text-align:left}
  .foot-top{grid-template-columns:1fr;gap:1.7rem}
  .ledger-row{grid-template-columns:1fr;gap:.3rem}
  .ledger-meta{text-align:left}
}