:root{color-scheme:light dark;--paper:#f7f6ee;--card:#fff;--ink:#1e2b24;--muted:#58645b;--rule:#dde4d7;--accent:#245543;--on-accent:#fff;--tint:#eaf1dc}
@media(prefers-color-scheme:dark){:root{--paper:#111c17;--card:#1b2a22;--ink:#f7f6ee;--muted:#b7c4b8;--rule:#333d2e;--accent:#bfe56f;--on-accent:#111c17;--tint:#253c2d}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
main{max-width:38rem;margin:0 auto;padding:9vh 1.5rem 3.5rem}
a{color:var(--accent);text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:2px solid var(--accent);outline-offset:5px;border-radius:3px}
.brand{font-size:.78rem;font-weight:600;letter-spacing:.075em;text-transform:uppercase;color:var(--muted);margin:0 0 2.6rem;display:flex;flex-wrap:wrap;gap:.4rem}
.brand a{text-decoration:none}
.brand b{color:var(--accent)}
h1{font-size:clamp(2.2rem,6vw,3.2rem);line-height:1.08;font-weight:700;letter-spacing:-.035em;margin:0 0 1.25rem;text-wrap:balance}
h2{font-size:1.25rem;line-height:1.3;letter-spacing:-.015em;margin:2.5rem 0 .8rem}
h3{font-size:1.05rem;line-height:1.3;margin:0 0 .5rem}
p{margin:0 0 1rem}
.lede{font-size:1.15rem;line-height:1.55;color:var(--muted);margin-bottom:1.6rem}
.note{color:var(--muted);font-size:.9rem}
.card{background:var(--card);border:1px solid var(--rule);border-radius:20px;padding:1.3rem 1.4rem;margin:1.5rem 0}
.card p:last-child{margin-bottom:0}
.card .note{margin-top:.9rem}
.eyebrow{font-size:.75rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin:0 0 .65rem}
.badge{display:inline-flex;align-items:center;gap:.45rem;font-size:.75rem;color:var(--accent);background:var(--tint);padding:.25rem .65rem;border-radius:99px;margin-bottom:1rem}
.badge::before{content:"";width:.35rem;height:.35rem;background:currentColor;border-radius:50%}
.button{display:inline-block;background:var(--accent);color:var(--on-accent);text-decoration:none;font-weight:600;border-radius:999px;padding:.7rem 1.3rem;border:0;font-size:1rem;cursor:pointer;transition:transform 160ms ease-out}
.button:hover{text-decoration:underline}
.button:active{transform:scale(.97)}
.button:focus-visible{border-radius:999px}
.running-line{color:var(--muted);font-size:.9rem;margin-bottom:1.4rem}
.running-line a{font-weight:600}
.card-title a{text-decoration:none}
.card-title a:hover{text-decoration:underline}
.steps{counter-reset:step;list-style:none;padding:0;margin:1rem 0 0}
.steps li{counter-increment:step;position:relative;padding-left:2.6rem;margin:0 0 1.45rem}
.steps li::before{content:counter(step);position:absolute;left:0;top:0;width:1.75rem;height:1.75rem;border-radius:50%;background:var(--accent);color:var(--on-accent);font-weight:700;font-size:.85rem;display:grid;place-items:center}
.steps p{margin:.3rem 0 0}
.examples{list-style:none;padding:0;margin:1rem 0;border-top:1px solid var(--rule)}
.examples li{padding:1rem 0;border-bottom:1px solid var(--rule)}
.examples p{margin:.25rem 0 0;color:var(--muted);font-size:.9rem}
.boundary{border-left:2px solid var(--accent);padding:.1rem 0 .1rem 1rem;margin:1.5rem 0;color:var(--muted);font-size:.9rem}
footer{margin-top:3rem;padding-top:1.25rem;border-top:1px solid var(--rule);color:var(--muted);font-size:.9rem}
footer .links{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem}
@media(prefers-reduced-motion:reduce){.button{transition:none}.button:active{transform:none}}
@media(max-width:420px){main{padding:3rem 1.25rem 2.5rem}.brand{margin-bottom:2rem}.card{padding:1.15rem}}

.card-title{margin-top:0}.card-action{margin-top:1.2rem}