/* Turvanolek — tessera-modules */

:root{
  --bg:#f6f0e6;
  --bg-alt:#eadcc6;
  --bg-dark:#4a2b1b;
  --ink:#2c1f15;
  --ink-soft:#7c6a55;
  --ink-inv:#f6f0e6;
  --amber:#a9631d;
  --indigo:#2a3f63;
  --seam:4px;
  --mono:ui-monospace,Consolas,'Liberation Mono',monospace;
  --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(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}

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

a{color:var(--amber);text-decoration:underline;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible{
  outline:3px solid var(--amber);
  outline-offset:2px;
}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- grid ---------- */
.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--seam);
}
.mod{padding:24px}
.c4{grid-column:span 4}
.c5{grid-column:span 5}
.c6{grid-column:span 6}
.c7{grid-column:span 7}
.c8{grid-column:span 8}
.c12{grid-column:span 12}
.r2{grid-row:span 2}
.r3{grid-row:span 3}
.off2{grid-column-start:3}

.c1{grid-column:span 1}
.c2{grid-column:span 2}
.c3{grid-column:span 3}

/* hero explicit placement */
.h-title{grid-column:1/9;grid-row:1/3}
.h-t1{grid-column:9/11;grid-row:1}
.h-t2{grid-column:11/13;grid-row:1}
.h-t3{grid-column:9/11;grid-row:2}
.h-t4{grid-column:11/13;grid-row:2}
.h-strip{grid-column:1/3;grid-row:3/6}
.h-fig{grid-column:3/9;grid-row:3/6}
.h-intro{grid-column:9/13;grid-row:3/5}
.h-cap{grid-column:9/13;grid-row:5/6}

.fill-amber{background:var(--amber)}
.fill-indigo{background:var(--indigo)}
.fill-dark{background:var(--bg-dark)}
.fill-alt{background:var(--bg-alt)}
.fill-ink{background:var(--ink)}

/* ---------- typography ---------- */
h1,h2,h3,.label,.num{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.09em;
  font-weight:700;
  line-height:1.22;
}
h1{font-size:2.05rem;margin:0}
h2{font-size:1.22rem;margin:0 0 16px}
h3{font-size:.98rem;margin:24px 0 8px;letter-spacing:.11em}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}

.label{
  font-size:.7rem;
  letter-spacing:.2em;
  color:var(--indigo);
  margin:0 0 12px;
  display:block;
}
.num{
  font-size:.72rem;
  letter-spacing:.2em;
  color:var(--indigo);
}
.lead{font-size:1.06rem}
.cap{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.09em;
  color:var(--ink-soft);
  line-height:1.6;
  text-transform:none;
}

/* ---------- header / nav ---------- */
.site-head{
  border-bottom:var(--seam) solid var(--bg-alt);
  padding:20px 0;
}
.head-in{
  display:flex;
  flex-wrap:wrap;
  gap:16px 28px;
  align-items:baseline;
  justify-content:space-between;
}
.brand{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.22em;
  font-weight:700;
  font-size:1rem;
  color:var(--ink);
  text-decoration:none;
}
.brand span{color:var(--amber)}
.site-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px 4px;
  margin:0;
  padding:0;
}
.site-nav a{
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink);
  padding:8px 12px;
  background:var(--bg-alt);
  display:block;
}
.site-nav a:hover{background:var(--amber);color:var(--bg)}
.site-nav a[aria-current="page"]{background:var(--ink);color:var(--bg)}

/* ---------- hero ---------- */
.hero{padding:48px 0 0}
.hero .grid{grid-auto-rows:minmax(64px,auto)}
.hero-title{
  background:var(--bg-alt);
  padding:36px 28px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.hero-title h1{font-size:2.3rem}
.hero-intro{
  background:var(--bg);
  border:var(--seam) solid var(--bg-alt);
  padding:24px;
}
.tile{min-height:64px}

figure{margin:0}
.fig-img{background:var(--bg-alt);padding:0}
.fig-img img{width:100%}
.fig-cap{
  background:var(--bg-alt);
  padding:20px;
  display:flex;
  align-items:flex-end;
}

/* ---------- sections ---------- */
section{padding:72px 0}
section.alt{background:var(--bg-alt)}
section.dark{
  background:var(--bg-dark);
  color:var(--ink-inv);
}
section.dark h2,section.dark h3{color:var(--ink-inv)}
section.dark .label,section.dark .num{color:#c9a06a}
section.dark .cap{color:#cbb69a}
section.dark a{color:#e0a55f}
section.dark .fig-img{background:transparent}

.sec-head{margin-bottom:32px}

.prose{max-width:66ch}

/* separator: row of 24px tiles */
.seam-row{
  display:flex;
  flex-wrap:wrap;
  gap:var(--seam);
  padding:0;
  margin:0;
  list-style:none;
}
.seam-row i{
  width:24px;height:24px;display:block;flex:0 0 24px;
  background:var(--bg-alt);
}
.seam-row i.a{background:var(--amber)}
.seam-row i.b{background:var(--indigo)}
.seam-row i.c{background:var(--bg-dark)}
section.dark .seam-row i{background:#5d3a26}
section.dark .seam-row i.a{background:var(--amber)}
section.dark .seam-row i.b{background:#3b5480}
section.dark .seam-row i.c{background:var(--ink-inv)}
.sep{padding:24px 0}

/* lists */
.checklist{
  list-style:none;
  margin:0;
  padding:0;
}
.checklist li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
}
.checklist li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:10px;height:10px;
  background:var(--amber);
}
section.dark .checklist li::before{background:#e0a55f}

ol.steps{
  margin:0;
  padding-left:0;
  list-style:none;
  counter-reset:st;
}
ol.steps li{
  counter-increment:st;
  padding-left:44px;
  position:relative;
  margin-bottom:16px;
}
ol.steps li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:.2em;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  color:var(--indigo);
  background:var(--bg);
  padding:2px 6px;
}
section.alt ol.steps li::before{background:var(--bg)}

dl.defs{margin:0}
dl.defs dt{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.1em;
  font-size:.82rem;
  margin-top:20px;
}
dl.defs dd{margin:6px 0 0}

.boxed{
  background:var(--bg);
  padding:24px;
}
section.alt .boxed{background:var(--bg)}

/* ---------- footer ---------- */
.site-foot{background:var(--bg-alt);padding:0 0 48px}
.foot-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--seam);
  margin-top:24px;
}
.foot-grid > div{background:var(--bg);padding:24px}
.foot-grid h2{font-size:.72rem;letter-spacing:.2em;color:var(--indigo);margin-bottom:12px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:6px}
.foot-grid a{font-size:.94rem}
.foot-brand{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.2em;
  font-weight:700;
}
.foot-note{font-size:.9rem;color:var(--ink-soft)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  section{padding:48px 0}
  .hero{padding:32px 0 0}
  h1,.hero-title h1{font-size:1.7rem}
  .c1,.c2,.c3,.c4,.c5,.c6,.c7,.c8{grid-column:span 12}
  .grid > .tile{display:none}
  .h-title,.h-fig,.h-intro,.h-cap,.h-strip,.h-t1,.h-t2,.h-t3,.h-t4{
    grid-column:1/-1;grid-row:auto;
  }
  .h-strip{display:none}
  .off2{grid-column-start:auto}
  .r2,.r3{grid-row:span 1}
  .hero-title{padding:24px}
  .foot-grid{grid-template-columns:1fr}
  .fig-cap{padding:16px}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .site-nav ul{gap:4px}
}