/* Netodu — woven-grid */
:root{
  --bg:#ffffff;
  --bg-alt:#eef0f3;
  --ink:#0b0c10;
  --ink-2:#565c66;
  --accent:#ff4e36;
  --blue:#1b2ecc;
  --line:#0b0c10;
  --gap:0px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:Georgia,'Times New Roman',serif;line-height:1.05;font-weight:700;margin:0}
h1{font-size:clamp(2.1rem,6vw,4rem);letter-spacing:-.01em}
h2{font-size:clamp(1.45rem,3.2vw,2.15rem);margin-bottom:14px}
h3{font-size:1.12rem;line-height:1.25;margin-bottom:8px}
p{margin:0 0 18px}
a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.cap{font-size:13px;line-height:1.55;color:var(--ink-2)}
.num{font-size:13px;color:var(--blue);letter-spacing:.06em;margin-bottom:10px;display:block}

/* header / nav */
.site-head{border-bottom:2px solid var(--line)}
.head-in{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 26px;padding:16px 0}
.brand{font-family:Georgia,'Times New Roman',serif;font-size:1.35rem;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:.02em}
.brand:hover{color:var(--accent)}
.site-nav{margin-left:auto}
.site-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px 20px;margin:0;padding:0}
.site-nav a{color:var(--ink);text-decoration:none;font-size:15px;border-bottom:1px solid transparent;padding-bottom:2px}
.site-nav a:hover,.site-nav a[aria-current="page"]{border-bottom-color:var(--accent);color:var(--accent)}

/* woven rule */
.rule{margin:0}
.rule span{display:block}
.rule .thick{height:2px;background:var(--accent)}
.rule .thin{height:1px;background:var(--blue);margin-top:6px}
.sec{padding:72px 0}
.sec-alt{background:var(--bg-alt)}
.sec-blue{background:var(--blue);color:#fff}
.sec-blue h2,.sec-blue h3{color:#fff}
.sec-blue .cap{color:#dfe2ff}
.sec-blue a{color:#fff;text-decoration-color:var(--accent)}
.sec-blue .num{color:#c9ceff}

/* grid */
.g{display:grid;grid-template-columns:repeat(12,1fr);gap:0}
.cell{border:1px solid var(--line);padding:24px;margin:-1px 0 0 -1px}
.sec-blue .cell{border-color:rgba(255,255,255,.55)}

/* hero */
.hero{padding:56px 0 0}
.hero h1{padding:26px 0;border-top:2px solid var(--line);border-bottom:2px solid var(--line);max-width:none}
.hero-h1-wrap{grid-column:span 12}
.hero .lead{grid-column:span 5}
.hero .topics{grid-column:span 4}
.hero .pause{grid-column:span 3;border-left:1px solid var(--line)}
.hero-grid{margin-top:0}
.topics ul{list-style:none;margin:0;padding:0;font-size:15px}
.topics li{padding-left:20px;position:relative;margin-bottom:9px;line-height:1.5}
.topics li::before{content:"";position:absolute;left:0;top:.5em;width:8px;height:8px;background:var(--accent)}

/* figures */
.fig-row{margin-top:0}
.fig-cell{grid-column:span 6;padding:0}
.fig-cell img{display:block;width:100%;height:auto}
.fig-note{grid-column:span 6;padding:24px;display:flex;flex-direction:column;justify-content:flex-end}

.two{grid-column:span 6}
.four{grid-column:span 4}
.eight{grid-column:span 8}
.three{grid-column:span 3}
.nine{grid-column:span 9}
.twelve{grid-column:span 12}
.prose{max-width:70ch}

/* checklist */
.check{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0}
.check li{border:1px solid var(--line);margin:-1px 0 0 -1px;padding:14px 16px 14px 38px;position:relative;font-size:16px;line-height:1.6}
.check li::before{content:"";position:absolute;left:16px;top:1.25em;width:9px;height:9px;background:var(--blue)}
.sec-blue .check li{border-color:rgba(255,255,255,.55)}
.sec-blue .check li::before{background:var(--accent)}

/* detail block in blue section */
.detail-img{grid-column:2 / span 4;padding:0;border:1px solid rgba(255,255,255,.55)}
.detail-img img{display:block;width:100%;height:auto}
.detail-txt{grid-column:span 6;padding:24px}

/* steps */
.steps{list-style:none;counter-reset:s;margin:0;padding:0}
.steps li{counter-increment:s;border-top:1px solid var(--line);padding:16px 0 16px 52px;position:relative}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:16px;font-size:13px;color:var(--blue)}
.steps b{font-family:Georgia,'Times New Roman',serif;font-size:1.02rem}

/* tableish rows */
.rows{border-top:1px solid var(--line)}
.rows div{display:grid;grid-template-columns:1fr 2fr;border-bottom:1px solid var(--line)}
.rows div>*{padding:12px 14px}
.rows dt{font-family:Georgia,'Times New Roman',serif;border-right:1px solid var(--line)}
.rows dd{margin:0;font-size:16px}

/* about */
.about-grid{grid-template-columns:repeat(12,1fr)}
.about-side{grid-column:span 3;border-right:1px solid var(--line);padding-right:20px}
.about-main{grid-column:5 / span 8}
.about-side ul{list-style:none;margin:0;padding:0;font-size:15px}
.about-side li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--ink-2)}
.about-side li::before{content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;background:var(--blue)}

/* footer */
.site-foot{border-top:2px solid var(--line);margin-top:0}
.foot-g{display:grid;grid-template-columns:repeat(4,1fr)}
.foot-g div{border:1px solid var(--line);margin:-1px 0 0 -1px;padding:22px;font-size:15px;line-height:1.7}
.foot-g h2{font-size:1.05rem;margin-bottom:10px}
.foot-g ul{list-style:none;margin:0;padding:0}
.foot-g li{margin-bottom:6px}
.foot-g a{color:var(--ink)}
.foot-g a:hover{color:var(--accent)}
.foot-bottom{padding:18px 0 40px;font-size:13px;color:var(--ink-2)}

@media (max-width:900px){
  .sec{padding:44px 0}
  .hero{padding:34px 0 0}
  .hero .lead,.hero .topics,.hero .pause,
  .two,.four,.eight,.three,.nine,
  .fig-cell,.fig-note,.detail-img,.detail-txt,
  .about-side,.about-main{grid-column:span 12}
  .detail-img{grid-column:span 12}
  .hero .pause{display:none}
  .about-side{border-right:0;border-bottom:1px solid var(--line);padding:0 0 18px;margin-bottom:22px}
  .check{grid-template-columns:1fr}
  .foot-g{grid-template-columns:1fr}
  .rows div{grid-template-columns:1fr}
  .rows dt{border-right:0;border-bottom:1px solid var(--line)}
  .head-in{padding:14px 0}
  .site-nav{margin-left:0;width:100%}
}