/* Rindulma — specimen sheet */

:root{
  --paper:#f6f0e6;
  --paper-alt:#eadcc6;
  --dark:#4a2b1b;
  --ink:#2c1f15;
  --ink-soft:#7c6a55;
  --amber:#a9631d;
  --indigo:#2a3f63;
  --rule:rgba(74,43,27,.28);
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

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

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

body{
  margin:0;
  background:var(--paper-alt);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
}

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

a{color:var(--amber);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
a:hover{text-decoration-thickness:2px;}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
  background:rgba(169,99,29,.1);
}

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

.shell{
  max-width:1180px;
  margin:0 auto;
  padding:40px 20px 0;
}

.sheet{
  background:var(--paper);
  border:1px solid var(--rule);
  padding:clamp(22px,4vw,56px);
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:28px;
}

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

.masthead{
  grid-column:1 / -1;
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 26px;
  padding-bottom:18px;
  border-bottom:1px solid var(--rule);
}

.wordmark{
  font-family:var(--serif);
  font-size:26px;
  letter-spacing:.02em;
  color:var(--ink);
  text-decoration:none;
}
.wordmark span{
  display:block;
  font-family:var(--sans);
  font-size:13px;
  line-height:1.5;
  color:var(--ink-soft);
  letter-spacing:.06em;
}

.nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 22px;
}
.nav a{
  font-size:15px;
  color:var(--ink);
  text-decoration:none;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
}
.nav a:hover{border-bottom-color:var(--amber);}
.nav a[aria-current="page"]{border-bottom-color:var(--amber);color:var(--amber);}

/* ---------- headings ---------- */

h1{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(34px,5.2vw,60px);
  line-height:1.05;
  letter-spacing:-.01em;
  margin:0;
}

h2{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(24px,2.8vw,31px);
  line-height:1.15;
  margin:0 0 18px;
}

h3{
  font-family:var(--sans);
  font-weight:600;
  font-size:17px;
  letter-spacing:.01em;
  margin:26px 0 8px;
}

p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}

.sec-no{
  display:block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--indigo);
  margin-bottom:10px;
}

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

.hero{
  grid-column:1 / -1;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:28px;
  align-items:start;
  padding:40px 0 34px;
}
.hero-title{grid-column:1 / span 8;}
.hero-title p{
  margin-top:20px;
  max-width:52ch;
  color:var(--ink);
}
.hero-card{grid-column:9 / span 4;}

.card{
  border:1px solid var(--rule);
  padding:16px 18px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-soft);
}
.card h2,.card h3{
  font-family:var(--sans);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--indigo);
  margin:0 0 10px;
}
.card dl{margin:0;}
.card dt{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--indigo);
  margin-top:9px;
}
.card dt:first-child{margin-top:0;}
.card dd{margin:0;color:var(--ink);}

/* ---------- rules ---------- */

.rule{
  grid-column:1 / -1;
  position:relative;
  height:1px;
  background:var(--rule);
  margin:88px 0;
}
.rule::before,.rule::after{
  content:"";
  position:absolute;
  top:-5px;
  width:1px;
  height:11px;
  background:var(--rule);
}
.rule::before{left:0;}
.rule::after{right:0;}

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

.band{grid-column:1 / -1;}

.band .body{grid-column:1 / span 7;}
.band .side{grid-column:9 / span 4;}

.split{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:28px;
  align-items:start;
}

figure{margin:0;}
figcaption{
  font-size:13px;
  line-height:1.6;
  color:var(--ink-soft);
  margin-top:10px;
}
.framed img{border:1px solid var(--rule);}

.fig-main{grid-column:1 / span 5;}
.fig-main-note{grid-column:7 / span 4;padding-top:6px;}

/* lists */

ul.checks,ol.steps{
  margin:0 0 18px;
  padding-left:0;
  list-style:none;
}
ul.checks li{
  position:relative;
  padding-left:22px;
  margin-bottom:9px;
}
ul.checks li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:9px;height:1px;
  background:var(--amber);
}
ol.steps{counter-reset:s;}
ol.steps li{
  position:relative;
  padding-left:34px;
  margin-bottom:12px;
  counter-increment:s;
}
ol.steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--indigo);
}

/* contrast section */

.dark-band{
  grid-column:1 / -1;
  background:var(--dark);
  color:var(--paper);
  padding:clamp(26px,4vw,52px);
  margin:88px 0;
}
.dark-band h2{color:var(--paper);}
.dark-band p{color:#e8dcca;}
.dark-band .sec-no{color:#c9a06a;}
.dark-band a{color:#e3a75c;}
.dark-band figcaption{color:#c1ab8e;}
.dark-band .framed img{border-color:rgba(246,240,230,.35);}
.dark-band ul.checks li::before{background:#e3a75c;}
.dark-band .card{border-color:rgba(246,240,230,.35);color:#d9c9b1;}
.dark-band .card h3{color:#c9a06a;}
.dark-band a:focus-visible{outline-color:#e3a75c;background:rgba(227,167,92,.15);}

.dark-band .fig{grid-column:2 / span 4;}
.dark-band .txt{grid-column:7 / span 6;}

/* prose page */

.prose{grid-column:1 / span 7;}
.prose-side{grid-column:9 / span 4;display:flex;flex-direction:column;gap:20px;}

.lede{
  font-size:19px;
  line-height:1.7;
}

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

.site-footer{
  max-width:1180px;
  margin:56px auto 0;
  padding:0 20px 46px;
  color:var(--ink);
}
.foot-top{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  align-items:baseline;
  padding-top:26px;
}
.foot-name{font-family:var(--serif);font-size:22px;}
.foot-line{height:1px;background:var(--rule);margin:16px 0;}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px 30px;
}
.foot-bottom nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:6px 20px;
  font-size:15px;
}
.foot-bottom nav a{color:var(--ink);text-decoration:none;border-bottom:1px solid transparent;}
.foot-bottom nav a:hover{border-bottom-color:var(--amber);}
.foot-note{
  font-size:13px;
  color:var(--ink-soft);
  max-width:46ch;
}

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

@media (max-width:900px){
  .shell{padding:24px 16px 0;}
  .grid,.hero,.split{gap:22px;}
  .hero{padding:28px 0 24px;}
  .hero-title,.hero-card,
  .band .body,.band .side,
  .fig-main,.fig-main-note,
  .prose,.prose-side,
  .dark-band .fig,.dark-band .txt{grid-column:1 / -1;}
  .fig-main{max-width:420px;}
  .dark-band .fig{max-width:380px;}
  .rule{margin:52px 0;}
  .dark-band{margin:52px 0;}
  .site-footer{margin-top:40px;padding-bottom:34px;}
}

@media (max-width:560px){
  body{font-size:16px;}
  .nav ul{gap:4px 16px;}
  .foot-bottom{flex-direction:column;}
}