/* Prordido — paličkovaná krajka | book-spine */

:root{
  --bg:#f3eeea;
  --bg-alt:#e6ddd6;
  --bg-dark:#3b2029;
  --ink:#241b1d;
  --ink-soft:#7b6a68;
  --ink-inv:#f3eeea;
  --wine:#8b2f45;
  --copper:#a8642e;
  --rhythm:76px;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --serif:Georgia,'Times New Roman',serif;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.7;
  overflow-x:hidden;
}

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

a{color:var(--wine);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}

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

/* ---------- grid shell ---------- */

.shell{
  max-width:1180px;
  margin:0 auto;
  padding:0 22px;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:22px;
}

.band{padding:var(--rhythm) 0}
.band--alt{background:var(--bg-alt)}
.band--dark{background:var(--bg-dark);color:var(--ink-inv)}
.band--dark a{color:#e8b6a2}

/* colontitul: short label in the left margin + hairline */
.folio{
  grid-column:1 / -1;
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--copper);
  padding-bottom:8px;
  border-bottom:1px solid rgba(123,106,104,.35);
  margin-bottom:34px;
}
.band--dark .folio{color:#c98d5a;border-bottom-color:rgba(243,238,234,.24)}

.col-main{grid-column:2 / 8}
.col-wide{grid-column:2 / 10}
.col-full{grid-column:2 / 12}

/* ---------- typography ---------- */

h1,h2,h3{font-family:var(--sans);font-weight:800;color:var(--ink)}
.band--dark h2,.band--dark h3{color:var(--ink-inv)}

h1{
  font-size:clamp(2.5rem,6.4vw,4.4rem);
  line-height:.98;
  letter-spacing:-.035em;
  margin:0;
}

h2{
  font-size:clamp(1.5rem,2.9vw,2.1rem);
  line-height:1.08;
  letter-spacing:-.02em;
  margin:0 0 18px;
}

h3{
  font-size:1.12rem;
  line-height:1.25;
  letter-spacing:-.01em;
  margin:34px 0 10px;
}

p{margin:0 0 20px}

.lead{
  grid-column:2 / 10;
  font-size:1.24rem;
  line-height:1.62;
  color:#3a2c2e;
}

.note{
  font-family:var(--sans);
  font-size:12.5px;
  line-height:1.5;
  color:var(--ink-soft);
  letter-spacing:.02em;
}
.band--dark .note{color:#c4a9a4}

/* ---------- header / nav ---------- */

.masthead{
  border-bottom:1px solid rgba(123,106,104,.3);
  background:var(--bg);
}
.masthead .shell{
  padding-top:20px;
  padding-bottom:18px;
  align-items:baseline;
  row-gap:10px;
}
.brand{
  grid-column:1 / 5;
  font-family:var(--sans);
  font-weight:800;
  font-size:1.22rem;
  letter-spacing:-.02em;
  color:var(--ink);
  text-decoration:none;
}
.brand span{
  display:block;
  font-weight:500;
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--copper);
  margin-top:4px;
}
.mainnav{grid-column:5 / 13}
.mainnav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 20px;
  justify-content:flex-end;
  font-family:var(--sans);
  font-size:13.5px;
  letter-spacing:.03em;
}
.mainnav a{color:var(--ink);text-decoration:none;padding-bottom:2px;border-bottom:1px solid transparent}
.mainnav a:hover{border-bottom-color:var(--wine)}
.mainnav a[aria-current="page"]{border-bottom-color:var(--wine);color:var(--wine)}

/* ---------- hero ---------- */

.hero{padding:calc(var(--rhythm) * .9) 0 var(--rhythm)}

/* stitched spine in column 1 */
.spine{
  grid-column:1 / 2;
  align-self:stretch;
  min-height:180px;
  background-image:
    linear-gradient(to bottom,var(--wine) 0 3px,transparent 3px 100%);
  background-size:100% 17px;
  background-repeat:repeat-y;
  background-position:left top;
  width:26px;
  opacity:.85;
}

.hero-title{grid-column:2 / 11}
.hero-rules{
  grid-column:2 / 11;
  margin:26px 0 24px;
  border-top:3px solid var(--ink);
  padding-top:5px;
}
.hero-rules::after{
  content:"";
  display:block;
  border-top:1px solid var(--copper);
}
.hero-sub{grid-column:2 / 8;font-size:1.16rem;line-height:1.65}

.figure-main{
  grid-column:7 / 13;
  margin:8px 0 0;
}
.figure-main img{width:100%}
.figure-main figcaption,
.figure-detail figcaption{
  margin-top:10px;
  text-align:left;
}

.hero-body{grid-column:2 / 8}

/* ---------- separator: three copper strokes ---------- */

.marks{
  grid-column:1 / -1;
  display:flex;
  justify-content:center;
  gap:9px;
  margin:44px 0;
}
.marks span{
  display:block;
  width:22px;
  height:2px;
  background:var(--copper);
}
.band--dark .marks span{background:#c98d5a}

/* ---------- lists ---------- */

ul.plain,ol.plain{
  margin:0 0 22px;
  padding-left:0;
  list-style:none;
}
ul.plain li,ol.plain li{
  position:relative;
  padding-left:26px;
  margin-bottom:11px;
}
ul.plain li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:13px;height:2px;
  background:var(--wine);
}
ol.plain{counter-reset:step}
ol.plain li{counter-increment:step;padding-left:34px}
ol.plain li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:.1em;
  font-family:var(--sans);
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--copper);
}
.band--dark ul.plain li::before{background:#c98d5a}

.term{font-family:var(--sans);font-weight:700;font-size:.94em;letter-spacing:-.01em}

/* ---------- dark section with detail image ---------- */

.detail-text{grid-column:2 / 8}
.figure-detail{grid-column:9 / 13;margin:0}
.figure-detail img{width:100%}

/* ---------- article pages ---------- */

.page-head{padding:calc(var(--rhythm) * .8) 0 10px}
.page-head h1{grid-column:2 / 11;font-size:clamp(2.1rem,4.6vw,3.2rem)}
.page-head .kicker{
  grid-column:1 / -1;
  font-family:var(--sans);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--copper);
  margin-bottom:16px;
}
.page-head .hero-rules{grid-column:2 / 11;margin-bottom:0}

.dropcap::first-letter{
  float:left;
  font-family:var(--sans);
  font-weight:800;
  font-size:3.5em;
  line-height:.82;
  padding:6px 12px 0 0;
  color:var(--wine);
}

/* ---------- footer ---------- */

.sitefoot{
  background:var(--bg-alt);
  border-top:1px solid rgba(123,106,104,.35);
  padding:52px 0 46px;
  margin-top:0;
}
.sitefoot .shell{display:block;text-align:center}
.foot-name{
  font-family:var(--sans);
  font-weight:800;
  font-size:1.1rem;
  letter-spacing:-.02em;
  margin:0 0 16px;
}
.footnav ul{
  list-style:none;
  margin:0 0 18px;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  font-family:var(--sans);
  font-size:13.5px;
}
.footnav li{padding:0 14px;border-right:1px solid rgba(123,106,104,.5)}
.footnav li:last-child{border-right:0}
.footnav a{color:var(--ink);text-decoration:none}
.footnav a:hover{text-decoration:underline;text-decoration-color:var(--wine)}
.foot-mail{margin:0 0 12px}
.sitefoot .note{max-width:52ch;margin:0 auto}

/* ---------- responsive ---------- */

@media (max-width:900px){
  .figure-main{grid-column:2 / 13;margin-top:30px}
  .figure-detail{grid-column:2 / 13;margin-top:30px;max-width:420px}
  .detail-text{grid-column:2 / 13}
  .hero-title,.hero-rules,.hero-sub,.hero-body,.lead,
  .col-main,.col-wide,.col-full,.page-head h1,.page-head .hero-rules{grid-column:2 / 13}
}

@media (max-width:680px){
  :root{--rhythm:46px}
  body{font-size:17px}
  .shell{column-gap:14px;padding:0 18px}
  .spine{display:none}
  .brand{grid-column:1 / 13}
  .mainnav{grid-column:1 / 13}
  .mainnav ul{justify-content:flex-start;gap:6px 16px}
  .hero-title,.hero-rules,.hero-sub,.hero-body,.lead,.folio,
  .col-main,.col-wide,.col-full,.detail-text,.figure-main,.figure-detail,
  .page-head h1,.page-head .hero-rules,.page-head .kicker{grid-column:1 / 13}
  .figure-detail{max-width:100%}
  .lead{font-size:1.12rem}
  .marks{margin:32px 0}
}