:root{
  --bg:#F5F5F2;
  --text:#1A1C20;
  --accent:#FF4F00;
  --muted:#A0A4B8;
  --card:#FFFFFF;
  --border:rgba(26,28,32,.18);
  --shadow: 10px 10px 0 rgba(26,28,32,.9);
  --radius:4px;
  --max:1100px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:400 16px/1.55 Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  text-rendering:optimizeLegibility;
}
a{color:inherit}
img{max-width:100%;height:auto}

.skip{
  position:absolute;left:-999px;top:0;
  background:var(--card);border:1px solid var(--border);
  padding:.5rem .75rem;border-radius:var(--radius);
}
.skip:focus{left:12px;top:12px;z-index:999}

.container{max-width:var(--max);margin:0 auto;padding:0 18px}
.row{display:flex;align-items:center;justify-content:space-between;gap:16px}

.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in oklab, var(--bg) 88%, white 12%);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(1.1);
}
.brand{
  display:flex;align-items:center;gap:10px;
  text-decoration:none;
  padding:14px 0;
}
.mark{
  width:14px;height:14px;
  background:var(--accent);
  border:1px solid color-mix(in oklab, var(--accent) 70%, var(--text) 30%);
  transform:rotate(45deg);
}
.brand-text{font-family:Oswald, system-ui, sans-serif;font-weight:700;letter-spacing:.02em}

.nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.nav a{
  text-decoration:none;
  padding:8px 10px;
  border-radius:var(--radius);
  border:1px solid transparent;
}
.nav a:hover{border-color:var(--border);background:rgba(255,255,255,.35)}

.hero{padding:46px 0 22px}
.kicker{
  display:inline-block;
  font-family:JetBrains Mono, ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:12px;
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.35);
}

h1,h2,h3{margin:0 0 .6rem}
h1{
  font-family:Oswald, system-ui, sans-serif;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.05;
  font-size:clamp(2.2rem, 4vw, 3.3rem);
}
h2{
  font-family:Oswald, system-ui, sans-serif;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.1;
  font-size:clamp(1.7rem, 2.3vw, 2.1rem);
}
h3{
  font-family:Oswald, system-ui, sans-serif;
  font-weight:500;
  letter-spacing:.01em;
  line-height:1.2;
  font-size:1.4rem;
}

.lead{font-size:1.06rem;max-width:64ch}

.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:22px;
  align-items:start;
}

.section{padding:34px 0}
.section-head{margin-bottom:16px;max-width:78ch}

.grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.stack{display:grid;gap:14px}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
}
.shadow{box-shadow:var(--shadow)}

/* 45° cut corner */
.cut{position:relative;overflow:hidden}
.cut::after{
  content:"";
  position:absolute;top:-1px;right:-1px;
  width:20px;height:20px;
  background:var(--bg);
  border-left:1px solid var(--border);
  border-bottom:1px solid var(--border);
  transform:rotate(45deg) translate(8px,-8px);
}

.card-title{margin:0}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}

.bullets{margin:.5rem 0 0;padding-left:1.15rem}
.bullets li{margin:.28rem 0}

.meta{
  display:flex;gap:12px;flex-wrap:wrap;
  list-style:none;padding:0;margin:16px 0 0;
  color:color-mix(in oklab, var(--text) 76%, var(--muted) 24%);
}
.meta li{border:1px solid var(--border);padding:6px 10px;border-radius:var(--radius);background:rgba(255,255,255,.35)}

.mono{font-family:JetBrains Mono, ui-monospace, SFMono-Regular, Menlo, monospace}

.h-tag{color:var(--accent)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  text-decoration:none;
  background:var(--accent);
  color:var(--bg);
  border:1px solid color-mix(in oklab, var(--accent) 65%, var(--text) 35%);
  border-radius:var(--radius);
  padding:10px 14px;
  font-weight:600;
  box-shadow:6px 6px 0 rgba(26,28,32,.9);
  transform:translate(0,0);
}
.btn:hover{transform:translate(1px,1px);box-shadow:5px 5px 0 rgba(26,28,32,.9)}
.btn:active{transform:translate(2px,2px);box-shadow:4px 4px 0 rgba(26,28,32,.9)}

.btn--ghost{
  background:transparent;
  color:var(--text);
  box-shadow:none;
  border:1px solid var(--border);
}
.btn--ghost:hover{background:rgba(255,255,255,.35)}

.btn--small{padding:8px 10px;font-size:.95rem;box-shadow:none}

.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0 0}

.prompt{
  margin-top:12px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:rgba(245,245,242,.55);
}
.prompt-label{
  padding:8px 10px;
  border-bottom:1px solid var(--border);
  background:rgba(255,255,255,.55);
  color:color-mix(in oklab, var(--text) 75%, var(--muted) 25%);
}
.prompt pre{margin:0;padding:10px;white-space:pre-wrap;word-break:break-word;line-height:1.45;font-size:13px}

.note{margin:.8rem 0 0;color:color-mix(in oklab, var(--text) 72%, var(--muted) 28%)}

.steps{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.steps li{display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start}
.step-num{
  width:42px;height:42px;display:grid;place-items:center;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(255,255,255,.55);
  font-weight:600;
}

.bridge{margin-top:18px}
.bridge-inner{
  border:1px solid var(--border);
  padding:18px;
  background:linear-gradient(135deg, rgba(255,255,255,.75), rgba(255,79,0,.06));
  box-shadow:var(--shadow);
}

.mini{margin-top:12px;display:grid;gap:8px}
.mini div{border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;background:rgba(255,255,255,.35)}

.contact{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
.contact .inner{box-shadow:none;background:rgba(245,245,242,.55)}

details summary{
  cursor:pointer;
  font-weight:600;
}
details summary::marker{color:var(--accent)}
details p{margin:.6rem 0 0}

.site-footer{border-top:1px solid var(--border);padding:16px 0}
.small{margin:0;color:color-mix(in oklab, var(--text) 70%, var(--muted) 30%);font-size:.95rem}

/* Responsive */
@media (max-width: 880px){
  .hero-grid{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .nav{gap:6px}
}

/* Motion accessibility */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .btn{transition:none}
}