:root{
  --bg:#101a24;
  --bg-alt:#16232f;
  --bg-contrast:#e9edf0;
  --text:#e3e9ee;
  --text-dim:#8b9aa6;
  --text-on-contrast:#101a24;
  --accent:#3fb3ae;
  --accent2:#d8a15a;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.72;
  overflow-x:hidden;
}

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

a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(63,179,174,.45)}
a:hover{border-bottom-color:var(--accent)}
a:focus-visible,
button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

/* ---------- grid ---------- */
.wrap{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 28px;
}
.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:0 28px;
}

/* ---------- utility labels ---------- */
.label{
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--text-dim);
  font-family:var(--sans);
}
.num{
  font-family:var(--serif);
  color:var(--accent2);
  font-size:13px;
  letter-spacing:.16em;
}

/* ---------- header / nav ---------- */
.site-head{
  border-bottom:1px solid rgba(139,154,166,.22);
  padding:22px 0;
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 32px;
}
.brand{
  font-family:var(--serif);
  font-size:23px;
  color:var(--text);
  border-bottom:none;
  letter-spacing:.02em;
}
.brand:hover{color:var(--accent)}
.site-nav ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 24px;
}
.site-nav a{
  font-size:14px;
  color:var(--text-dim);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{
  color:var(--text);
  border-bottom-color:var(--accent);
}

/* ---------- hero ---------- */
.hero{padding:120px 0 96px}
.hero-inner{position:relative}
.hero-rule{
  grid-column:1;
  border-left:3px solid var(--accent);
  min-height:100%;
}
.hero-head{grid-column:2 / 12}
.hero h1{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(2.2rem,5.4vw,4.25rem);
  line-height:1.08;
  margin:0;
  letter-spacing:-.01em;
}
.hero h1 span{display:block}
.hero h1 span:nth-child(2){margin-left:8.4%}
.hero h1 span:nth-child(3){margin-left:16.8%}
.hero-intro{
  grid-column:2 / 7;
  margin-top:44px;
  color:var(--text);
}
.hero-topics{
  grid-column:2 / 10;
  margin-top:18px;
  color:var(--text-dim);
  font-size:15px;
}
.hero-topics span{white-space:nowrap}
.hero-topics span + span::before{
  content:"/";
  color:var(--accent);
  margin:0 12px;
}

/* ---------- main figure ---------- */
.figure-main{
  margin:0 0 0 auto;
  grid-column:5 / 13;
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:18px;
}
.figure-main .cap{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--text-dim);
  white-space:nowrap;
  padding-top:6px;
}
.figure-main img{width:100%}
.figure-shift{padding:0 0 96px}
.figure-shift .grid{align-items:start}

/* ---------- sections ---------- */
.s-loose{padding:120px 0}
.s-tight{padding:56px 0}
.s-alt{background:var(--bg-alt)}
.s-contrast{
  background:var(--bg-contrast);
  color:var(--text-on-contrast);
}
.s-contrast .label{color:#54636e}
.s-contrast a{color:#1a6f6c;border-bottom-color:rgba(26,111,108,.5)}
.s-contrast h2,.s-contrast h3{color:var(--text-on-contrast)}
.s-contrast .num{color:#a06f2c}

h2{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(1.55rem,3vw,2.35rem);
  line-height:1.2;
  margin:0 0 22px;
  letter-spacing:-.005em;
}
h3{
  font-family:var(--serif);
  font-style:italic;
  font-weight:400;
  font-size:1.24rem;
  line-height:1.35;
  margin:38px 0 12px;
}
p{margin:0 0 20px}
p:last-child{margin-bottom:0}

.col-5{grid-column:1 / 6}
.col-5-right{grid-column:8 / 13}
.col-7{grid-column:1 / 8}
.col-7-right{grid-column:6 / 13}
.col-9{grid-column:1 / 10}
.col-9-right{grid-column:4 / 13}
.col-head{grid-column:1 / 10;margin-bottom:6px}

/* ---------- separators ---------- */
.sep{
  border:0;
  height:3px;
  background:var(--accent);
  width:33.33%;
  margin:0;
}
.sep-left{margin-right:auto}
.sep-center{margin-left:auto;margin-right:auto}
.sep-right{margin-left:auto}
.sep-gold{background:var(--accent2)}

/* ---------- numbered checklists ---------- */
.steps{
  list-style:none;
  margin:26px 0 0;
  padding:0;
  counter-reset:st;
}
.steps li{
  counter-increment:st;
  position:relative;
  padding-left:64px;
  margin-bottom:22px;
}
.steps li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-family:var(--serif);
  font-size:1.7rem;
  line-height:1.2;
  color:var(--accent);
}
.s-contrast .steps li::before{color:#1a6f6c}
.steps b{font-weight:600}

.plain{
  list-style:none;
  margin:22px 0 0;
  padding:0;
}
.plain li{
  padding-left:22px;
  position:relative;
  margin-bottom:12px;
}
.plain li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:9px;height:3px;
  background:var(--accent2);
}

.note{color:var(--text-dim);font-size:15px}
.s-contrast .note{color:#54636e}

/* ---------- detail figure inside contrast ---------- */
.figure-detail{
  grid-column:2 / 6;
  margin:0;
}
.figure-detail img{width:100%}
.figure-detail figcaption{
  margin-top:12px;
  font-size:13px;
  line-height:1.5;
  color:#54636e;
}
.detail-text{grid-column:7 / 13}

/* ---------- inner pages ---------- */
.page-head{padding:104px 0 48px}
.page-head h1{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(2rem,4.4vw,3.3rem);
  line-height:1.1;
  margin:14px 0 0;
  grid-column:2 / 11;
}
.page-head .label{grid-column:2 / 11}
.page-head .hero-rule{grid-column:1}

.doc{padding:0 0 110px}
.doc-lead{
  grid-column:1 / 10;
  font-size:22px;
  line-height:1.58;
  margin-bottom:44px;
}
.doc-body{grid-column:1 / 7}
.doc-body h2{margin-top:52px}
.doc-body h2:first-child{margin-top:0}
.doc-side-head{grid-column:1 / 3;padding-right:20px}
.doc-side-body{grid-column:3 / 9}
.doc-block{margin-bottom:46px}
.doc-block h2{
  font-size:1.5rem;
  margin:0;
}

/* ---------- contact block ---------- */
.contact-inner{grid-column:1 / 8}
.mail{
  font-family:var(--serif);
  font-size:clamp(1.3rem,2.6vw,1.9rem);
  word-break:break-word;
}

/* ---------- footer ---------- */
.site-foot{
  border-top:3px solid var(--accent);
  background:var(--bg);
  padding:56px 0 64px;
}
.foot-name{
  font-family:var(--serif);
  font-size:clamp(2rem,6vw,3.6rem);
  line-height:1.05;
  margin:0 0 34px;
  letter-spacing:.01em;
  color:var(--text);
}
.foot-cols{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px 28px;
}
.foot-cols ul{list-style:none;margin:0;padding:0}
.foot-cols li{margin-bottom:9px}
.foot-cols a{font-size:15px}
.foot-cols .site-nav-foot a{color:var(--text-dim);border-bottom-color:transparent}
.foot-cols .site-nav-foot a:hover{color:var(--text);border-bottom-color:var(--accent)}
.foot-about{font-size:15px;color:var(--text-dim);max-width:46ch}
.foot-mail{font-family:var(--serif);font-size:1.2rem;display:inline-block;margin-bottom:14px}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .col-5,.col-5-right,.col-7,.col-7-right,.col-9,.col-9-right,
  .col-head,.hero-head,.hero-intro,.hero-topics,
  .detail-text,.doc-lead,.doc-body,.doc-side-head,.doc-side-body,
  .contact-inner,.page-head h1,.page-head .label{
    grid-column:1 / -1;
  }
  .figure-main{grid-column:1 / -1}
  .figure-detail{grid-column:1 / 9}
  .doc-side-head{padding-right:0;margin-bottom:8px}
  .sep{width:50%}
}

@media (max-width:700px){
  body{font-size:16px;line-height:1.68}
  .wrap{padding:0 20px}
  .grid{gap:0 16px}
  .hero{padding:64px 0 48px}
  .s-loose{padding:64px 0}
  .s-tight{padding:40px 0}
  .figure-shift{padding-bottom:48px}
  .page-head{padding:56px 0 32px}
  .doc{padding-bottom:64px}
  .doc-lead{font-size:19px}
  .hero h1 span:nth-child(2){margin-left:6%}
  .hero h1 span:nth-child(3){margin-left:12%}
  .hero-rule{display:none}
  .hero-head,.page-head h1,.page-head .label{grid-column:1 / -1}
  .figure-main{flex-direction:column;gap:10px}
  .figure-main .cap{
    writing-mode:horizontal-tb;
    transform:none;
    white-space:normal;
    order:2;
    padding-top:0;
  }
  .figure-detail{grid-column:1 / -1}
  .steps li{padding-left:48px}
  .steps li::before{font-size:1.4rem}
  .foot-cols{grid-template-columns:1fr}
  .sep{width:66%}
}