/* Stebrabeto — canvas-field */

:root{
  --bg:#eef4f1;
  --bg-alt:#dfeae5;
  --dark:#1c2a28;
  --ink:#16211f;
  --ink-2:#5f7370;
  --ink-inv:#eef4f1;
  --a1:#2f6f63;
  --a2:#c25340;
  --gap:28px;
  --pad:24px;
  --bleed:0px;
  --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%;overflow-x:hidden}

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

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

a{color:var(--a1);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}

a:focus-visible,
:focus-visible{outline:3px solid var(--a1);outline-offset:3px}
.band-dark a:focus-visible,
.band-dark :focus-visible{outline-color:var(--a2)}

h1,h2,h3{
  font-family:var(--sans);
  font-weight:800;
  margin:0;
  color:var(--ink);
}

h1{
  font-size:clamp(2.35rem,8.4vw,4.5rem);
  line-height:0.98;
  letter-spacing:-0.035em;
}

h2{
  font-size:clamp(1.5rem,3.4vw,2.3rem);
  line-height:1.06;
  letter-spacing:-0.025em;
}

h3{
  font-size:1.12rem;
  line-height:1.3;
  letter-spacing:-0.01em;
  margin-bottom:6px;
}

p{margin:0 0 20px}
p:last-child{margin-bottom:0}

.shell{max-width:1408px;margin-inline:auto;padding-inline:var(--pad)}

.grid{display:grid;grid-template-columns:1fr;column-gap:var(--gap)}

.num{
  display:block;
  font-family:var(--sans);
  font-size:0.74rem;
  font-weight:700;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--a2);
  margin-bottom:14px;
}

.lead{font-size:1.16rem;line-height:1.62}

.note{
  font-family:var(--sans);
  font-size:0.86rem;
  line-height:1.5;
  color:var(--ink-2);
}

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

.rule{display:block;height:3px;background:var(--a1);border:0;margin:0 0 30px;width:120px}
.rule--wide{width:220px}
.rule--narrow{width:64px}
.rule--alt{background:var(--a2)}
.rule--end{margin:34px 0 0}

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

.site-head{background:var(--bg);padding:26px 0 22px;border-bottom:1px solid rgba(95,115,112,.28)}

.head-in{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px 28px}

.brand{
  font-family:var(--sans);
  font-weight:800;
  font-size:1.28rem;
  letter-spacing:-0.03em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{color:var(--a1)}

.head-nav{margin-left:auto}
.head-nav ul{display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;margin:0;padding:0}
.head-nav a{
  font-family:var(--sans);
  font-size:0.95rem;
  color:var(--ink-2);
  text-decoration:none;
  padding-bottom:3px;
  border-bottom:2px solid transparent;
}
.head-nav a:hover{color:var(--ink);border-bottom-color:var(--a1)}
.head-nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--a2)}

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

.hero{padding:56px 0 0}
.hero-void{display:none}
.hero-bar{display:block;width:12px;height:96px;background:var(--a2);margin:26px 0 0}
.hero-intro{margin-top:26px;font-size:1.2rem;line-height:1.6;color:var(--ink)}
.hero-meta{margin-top:22px}

/* ---------- blocks ---------- */

.band{padding:56px 0}
.band--alt{background:var(--bg-alt)}
.band--tight{padding-top:0}

.stack > * + *{margin-top:40px}

.block{max-width:66ch}

.fig-main{margin:64px 0 0}
.fig-main img{width:100%}
.fig-main figcaption{
  margin-top:12px;
  font-family:var(--sans);
  font-size:0.82rem;
  line-height:1.5;
  color:var(--ink-2);
}

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

.checks{list-style:none;margin:0;padding:0}
.checks li{position:relative;padding-left:26px;margin-bottom:12px}
.checks li:last-child{margin-bottom:0}
.checks li::before{
  content:"";
  position:absolute;
  left:0;
  top:0.78em;
  width:13px;
  height:3px;
  background:var(--a1);
}

.steps{margin:0;padding-left:22px}
.steps li{margin-bottom:12px;padding-left:6px}
.steps li:last-child{margin-bottom:0}
.steps li::marker{font-family:var(--sans);font-weight:700;color:var(--a2)}

.defs{margin:0}
.defs dt{font-family:var(--sans);font-weight:700;letter-spacing:-0.01em;margin-top:22px}
.defs dt:first-child{margin-top:0}
.defs dd{margin:4px 0 0}

/* ---------- dark band ---------- */

.band-dark{background:var(--dark);color:var(--ink-inv);padding:64px 0;margin-top:64px}
.band-dark h2,.band-dark h3{color:var(--ink-inv)}
.band-dark .note{color:#b5c6c2}
.band-dark a{color:#8fd0c1}
.band-dark .checks li::before{background:var(--a2)}
.band-dark .rule{background:var(--a2)}

.fig-detail{margin:36px 0 0}
.fig-detail img{width:100%}
.fig-detail figcaption{
  margin-top:10px;
  font-family:var(--sans);
  font-size:0.78rem;
  line-height:1.5;
  color:#b5c6c2;
}

/* ---------- about page ---------- */

.about-marks{display:none}

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

.site-foot{background:var(--bg-alt);padding:52px 0 46px;margin-top:72px}
.foot-bar{display:block;height:6px;background:var(--a1);margin-bottom:32px;width:60%;max-width:340px}
.foot-name{font-family:var(--sans);font-weight:800;font-size:1.9rem;letter-spacing:-0.035em;line-height:1}
.foot-nav{margin-top:20px}
.foot-nav ul{display:flex;flex-wrap:wrap;gap:8px 20px;list-style:none;margin:0;padding:0}
.foot-nav a{font-family:var(--sans);font-size:0.93rem;color:var(--ink-2);text-decoration:none}
.foot-nav a:hover{color:var(--a1);text-decoration:underline}
.foot-mail{margin-top:26px;font-family:var(--sans);font-size:0.95rem}
.foot-mail a{color:var(--a1)}
.foot-fine{margin-top:26px;font-family:var(--sans);font-size:0.8rem;color:var(--ink-2)}

/* ---------- tablet ---------- */

@media (min-width:760px){
  :root{--pad:48px;--bleed:24px}

  .grid{grid-template-columns:repeat(12,1fr)}

  .hero{padding-top:76px}
  .hero-title{grid-column:1 / span 8}
  .hero-void{display:block;grid-column:10 / span 3}
  .hero-bar{height:118px;margin:6px 0 0 auto}
  .hero-intro{grid-column:1 / span 7;margin-top:34px}
  .hero-meta{grid-column:1 / span 6;margin-top:26px}

  .col-7{grid-column:1 / span 7}
  .col-6{grid-column:1 / span 6}
  .col-6r{grid-column:6 / span 7}
  .col-5{grid-column:1 / span 5}
  .col-5r{grid-column:7 / span 5}
  .col-8{grid-column:1 / span 8}
  .col-full{grid-column:1 / -1}

  .fig-main{grid-column:1 / span 9;margin-left:calc(-1 * var(--bleed));margin-top:96px}
  .fig-main figcaption{text-align:right}

  .band{padding:64px 0}
  .band-dark{padding:88px 0;margin-top:96px}

  .dark-text{grid-column:1 / span 6}
  .fig-detail{grid-column:8 / span 5;margin-top:0}

  .about-col{grid-column:3 / span 7}
  .about-marks{
    display:flex;
    grid-column:1 / span 1;
    flex-direction:column;
    gap:210px;
    padding-top:10px;
  }
  .about-marks span{display:block;height:3px;background:var(--a1)}
  .about-marks span:nth-child(2){background:var(--a2)}

  .doc-col{grid-column:1 / span 8}

  .foot-bar{grid-column:1 / span 4;width:auto;max-width:none}
  .foot-main{grid-column:1 / span 7}
  .foot-mail{grid-column:9 / span 4;margin-top:0;text-align:right}
  .foot-fine{grid-column:1 / span 8}
}

/* ---------- desktop ---------- */

@media (min-width:1080px){
  :root{--pad:104px;--bleed:96px}

  .hero{padding-top:96px}
  .hero-title{grid-column:1 / span 7}
  .hero-void{grid-column:9 / span 4}
  .hero-bar{height:9.4rem;width:14px}
  .hero-intro{grid-column:1 / span 5}
  .hero-meta{grid-column:1 / span 5}

  .fig-main{grid-column:1 / span 8;margin-top:112px}
  .band{padding:72px 0}
  .band-dark{padding:104px 0;margin-top:112px}
  .stack > * + *{margin-top:64px}
  .about-marks{gap:240px}
}