/* ==========================================================================
   mikesturm.net
   Type and rules. The ruled line is the structural device throughout — it
   comes from the 3x5 index card The Today System runs on. The card's red
   header rule is the only accent, and appears at most twice on any page.
   ========================================================================== */

:root{
  --paper:#F5F6F3;
  --ink:#1B2A38;
  --ink-soft:#5A6B78;
  --rule:#D6DCD8;
  --red:#C1121F;

  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,sans-serif;

  --pad:clamp(1.5rem,5vw,3rem);
}

*{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:clamp(1.0625rem,0.98rem + 0.4vw,1.1875rem);
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;text-decoration:none}
a:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:1px}

img{max-width:100%;height:auto}

.wrap{max-width:46rem;margin:0 auto;padding:0 var(--pad)}
.wrap--reading{max-width:38rem}

.skip{position:absolute;left:-9999px}
.skip:focus{left:var(--pad);top:0.5rem;background:var(--paper);padding:0.5rem;z-index:10}

/* ---------- the card rule ---------- */

.card-rule{
  height:2px;background:var(--red);border:0;
  margin:1.5rem 0 1.75rem;transform-origin:left center;
}
.home .masthead .card-rule{animation:draw 900ms cubic-bezier(.2,.7,.3,1) both}
@keyframes draw{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* ---------- site header (interior pages) ---------- */

.siteheader{padding:2.25rem 0 0}
.siteheader a{
  font-family:var(--sans);font-size:0.9375rem;color:var(--ink-soft);
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.siteheader a:hover{color:var(--ink);border-bottom-color:var(--rule)}

/* ---------- home masthead ---------- */

.masthead{padding:clamp(4rem,12vh,8rem) 0 clamp(3rem,7vh,4.5rem)}
.name{
  font-size:clamp(3rem,10vw,5.25rem);font-weight:500;line-height:0.95;
  letter-spacing:-0.025em;margin:0;
}
.standfirst{
  font-size:clamp(1.25rem,1.05rem + 0.8vw,1.6rem);line-height:1.45;
  font-weight:300;max-width:30rem;margin:0;text-wrap:balance;
}

/* ---------- sections ---------- */

section{padding:clamp(2.75rem,6vh,4rem) 0}

.section-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:1.5rem;
  border-bottom:1px solid var(--ink);padding-bottom:0.5rem;margin-bottom:0.25rem;
}
.section-head h2{font-size:1.5rem;font-weight:500;letter-spacing:-0.01em;margin:0}
.section-note{font-family:var(--sans);font-size:0.8125rem;color:var(--ink-soft);flex-shrink:0}

/* ---------- ruled index ---------- */

.index{list-style:none;margin:0;padding:0}
.index li{border-bottom:1px solid var(--rule)}

.row{
  display:grid;grid-template-columns:1fr auto;align-items:baseline;
  gap:0.5rem 1.5rem;padding:0.95rem 0;transition:background-color 120ms ease;
}
.row:hover,.row:focus-visible{background-color:rgba(27,42,56,0.035)}

.row-title{font-size:1.1875rem;font-weight:500;line-height:1.3}
.row-desc{
  grid-column:1/2;font-size:0.9375rem;line-height:1.5;color:var(--ink-soft);
  font-weight:300;max-width:32rem;margin-top:0.15rem;
}
.count{
  font-family:var(--sans);font-size:0.8125rem;font-variant-numeric:tabular-nums;
  color:var(--ink-soft);white-space:nowrap;
}
.row:hover .count{color:var(--ink)}

/* ---------- panel (Today System) ---------- */

.panel{
  border:1px solid var(--rule);background:#FCFCFA;
  padding:clamp(1.5rem,4vw,2.25rem);
  background-image:repeating-linear-gradient(
    to bottom,transparent 0,transparent 2.15rem,
    rgba(27,42,56,0.055) 2.15rem,rgba(27,42,56,0.055) calc(2.15rem + 1px));
  background-position:0 3.4rem;
}
.panel .card-rule{margin:0 0 1.4rem}
.panel h3{
  font-size:clamp(1.6rem,1.3rem + 1vw,2.1rem);font-weight:500;line-height:1.15;
  letter-spacing:-0.015em;margin:0 0 0.75rem;
}
.panel p{margin:0 0 1.25rem;max-width:30rem;font-weight:300}
.panel-links{
  display:flex;flex-wrap:wrap;gap:0.5rem 1.75rem;
  font-family:var(--sans);font-size:0.9375rem;
}
.panel-links a{border-bottom:1px solid var(--red);padding-bottom:1px}
.panel-links a:hover{background-color:rgba(193,18,31,0.07)}

/* ---------- books ---------- */

.books{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:2rem 2.5rem;margin-top:1.75rem}
.book h3{font-size:1.25rem;font-weight:500;margin:0 0 0.15rem;line-height:1.25}
.book .year{font-family:var(--sans);font-size:0.8125rem;color:var(--ink-soft);display:block;margin-bottom:0.6rem}
.book p{font-size:0.9375rem;line-height:1.55;font-weight:300;color:var(--ink-soft);margin:0 0 0.75rem}
.buy{font-family:var(--sans);font-size:0.875rem;display:flex;flex-wrap:wrap;gap:0.35rem 1rem}
.buy a{border-bottom:1px solid var(--rule);padding-bottom:1px}
.buy a:hover{border-bottom-color:var(--ink)}

/* ==========================================================================
   Article pages
   ========================================================================== */

.article-head{padding:clamp(2.5rem,7vh,4.5rem) 0 0}
.article-title{
  font-size:clamp(2rem,1.5rem + 2.2vw,3rem);font-weight:500;line-height:1.1;
  letter-spacing:-0.02em;margin:0;text-wrap:balance;
}
.article-meta{
  font-family:var(--sans);font-size:0.8125rem;color:var(--ink-soft);
  margin:1rem 0 0;display:flex;flex-wrap:wrap;gap:0.4rem 1.25rem;
}
.article-meta a{border-bottom:1px solid var(--rule);padding-bottom:1px}
.article-meta a:hover{color:var(--ink);border-bottom-color:var(--ink)}

.prose{padding-bottom:3rem}
.prose > *:first-child{margin-top:0}
.prose p{margin:0 0 1.35rem}
.prose h1,.prose h2,.prose h3,.prose h4{
  font-weight:500;line-height:1.25;letter-spacing:-0.01em;margin:2.5rem 0 0.85rem;
}
.prose h1,.prose h2{font-size:1.5rem}
.prose h3{font-size:1.25rem}
.prose h4{font-size:1.0625rem}
.prose ul,.prose ol{margin:0 0 1.35rem;padding-left:1.4rem}
.prose li{margin-bottom:0.4rem}
.prose a{border-bottom:1px solid var(--rule);padding-bottom:1px}
.prose a:hover{border-bottom-color:var(--red)}
.prose blockquote{
  margin:1.75rem 0;padding-left:1.25rem;border-left:2px solid var(--red);
  font-style:italic;color:var(--ink-soft);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose hr{border:0;border-top:1px solid var(--rule);margin:2.5rem 0}
.prose figure{margin:2rem 0}
.prose figcaption,.prose img + em{
  font-family:var(--sans);font-size:0.8125rem;color:var(--ink-soft);
  display:block;margin-top:0.5rem;
}
.prose code{
  font-size:0.9em;background:rgba(27,42,56,0.05);padding:0.1em 0.35em;border-radius:2px;
}
.prose pre{
  background:#FCFCFA;border:1px solid var(--rule);padding:1rem;
  overflow-x:auto;font-size:0.875rem;line-height:1.5;
}
.prose pre code{background:none;padding:0}

/* article footer nav */
.article-nav{
  border-top:1px solid var(--ink);padding:1.5rem 0 0;margin-top:1rem;
  display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;
}
.article-nav a{font-size:1rem;line-height:1.35;font-weight:500}
.article-nav .label{
  display:block;font-family:var(--sans);font-size:0.75rem;
  color:var(--ink-soft);font-weight:400;margin-bottom:0.3rem;
}
.article-nav .next{text-align:right}

/* ==========================================================================
   Topic / list pages
   ========================================================================== */

.list-head{padding:clamp(2.5rem,7vh,4.5rem) 0 0}
.list-title{
  font-size:clamp(2rem,1.5rem + 2vw,2.75rem);font-weight:500;line-height:1.1;
  letter-spacing:-0.02em;margin:0;
}
.list-desc{
  font-size:1.125rem;font-weight:300;color:var(--ink-soft);
  max-width:32rem;margin:0.85rem 0 0;
}

.year-group{margin-top:2.5rem}
.year-group > h2{
  font-family:var(--sans);font-size:0.8125rem;font-weight:500;color:var(--ink-soft);
  margin:0 0 0.35rem;padding-bottom:0.4rem;border-bottom:1px solid var(--ink);
}
.entry{
  display:grid;grid-template-columns:1fr auto;align-items:baseline;
  gap:0.5rem 1.5rem;padding:0.85rem 0;transition:background-color 120ms ease;
}
.entry:hover{background-color:rgba(27,42,56,0.035)}
.entry-title{font-size:1.0625rem;font-weight:500;line-height:1.35}
.entry-date{
  font-family:var(--sans);font-size:0.8125rem;color:var(--ink-soft);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}

/* topic chips on an article */
.topics-inline a{
  font-family:var(--sans);font-size:0.8125rem;color:var(--ink-soft);
  border-bottom:1px solid var(--rule);padding-bottom:1px;
}

/* ==========================================================================
   Today System section
   ========================================================================== */

.tts-nav{
  display:flex;flex-wrap:wrap;gap:0.5rem 1.5rem;font-family:var(--sans);
  font-size:0.9375rem;padding-bottom:0.75rem;border-bottom:1px solid var(--ink);
  margin-bottom:0.5rem;
}
.tts-nav a{color:var(--ink-soft);border-bottom:1px solid transparent;padding-bottom:1px}
.tts-nav a:hover{color:var(--ink)}
.tts-nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--red)}

/* ==========================================================================
   Footer
   ========================================================================== */

footer.sitefooter{
  border-top:1px solid var(--ink);margin-top:clamp(3rem,8vh,5rem);
  padding:2rem 0 4rem;font-family:var(--sans);font-size:0.875rem;
  color:var(--ink-soft);display:flex;flex-wrap:wrap;gap:0.5rem 1.75rem;align-items:baseline;
}
footer.sitefooter a{border-bottom:1px solid var(--rule);padding-bottom:1px}
footer.sitefooter a:hover{color:var(--ink);border-bottom-color:var(--ink)}
footer.sitefooter .spacer{margin-left:auto}

/* ==========================================================================
   Responsive + motion
   ========================================================================== */

@media (max-width:34rem){
  .row,.entry{grid-template-columns:1fr}
  .count,.entry-date{grid-row:1;grid-column:1;justify-self:start;margin-top:0.1rem}
  .article-nav{grid-template-columns:1fr}
  .article-nav .next{text-align:left}
  footer.sitefooter .spacer{margin-left:0;flex-basis:100%}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

@media print{
  body{background:#fff;font-size:11pt}
  .siteheader,.sitefooter,.article-nav,.tts-nav{display:none}
  .prose a{border:0}
}