:root{font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#192b33;background:#f7f8f6;font-synthesis:none;line-height:1.65;--muted:#53636b;--accent:#006c59;--line:#d7dfda}*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input{font:inherit}button{cursor:pointer;border:1px solid #9bb9ad;border-radius:6px;padding:.4rem .8rem;color:#005344;background:#edf6f0;font-size:.85rem;font-weight:650}button:hover{background:#d9ecdf}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #a44819;outline-offset:4px}[hidden]{display:none!important}.site-header,footer{max-width:1160px;margin:auto;padding:1.6rem 2rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.site-header{border-bottom:1px solid var(--line)}.brand{text-decoration:none;color:inherit;display:flex;align-items:center;gap:.65rem;font-weight:750}.brand-label{color:var(--muted);font-weight:400;font-size:.88rem}.mark{display:inline-grid;place-items:center;background:#133b32;color:#fff;border-radius:8px;width:30px;height:30px;font-family:monospace;font-size:1.2rem}nav{display:flex;gap:1.5rem}nav a{color:var(--muted);font-size:.9rem}main{max-width:1100px;margin:auto;padding:0 2rem 4rem;min-height:70vh}.hero{padding:5rem 0 4rem;max-width:810px}.eyebrow{color:var(--accent);font-size:.73rem;font-weight:750;letter-spacing:.13em;margin:0 0 1.2rem}h1{font-size:clamp(2.2rem,5vw,3.65rem);line-height:1.13;letter-spacing:-.045em;margin:.8rem 0 1.3rem;font-weight:650}h1 span{color:var(--accent)}h2{font-size:1.3rem;letter-spacing:-.02em;line-height:1.4}h3{font-size:1.05rem;line-height:1.4}.lead{color:var(--muted);font-size:1.15rem;max-width:700px}.text-link{font-size:.9rem;font-weight:650}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:1rem;border-top:1px solid var(--line);padding-top:1rem}.section-heading span,.kind{color:var(--muted);font-size:.75rem}.search{margin:1.3rem 0 1.6rem}.search label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.45rem}.search input{width:100%;background:#fff;border:1px solid #99aba2;border-radius:8px;padding:.9rem 1rem;color:inherit}.search p{font-size:.8rem;color:var(--muted);margin:.5rem 0}.catalogue{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.problem-card{display:flex;flex-direction:column;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:10px;background:#fff;padding:1.4rem;transition:border-color .15s}.problem-card:hover{border-color:var(--accent)}.card-top{display:flex;justify-content:space-between;align-items:center;gap:.6rem}.status{display:inline-block;font-size:.75rem;font-weight:750;color:#795019;background:#faf0dc;border:1px solid #e7d9bb;border-radius:5px;padding:.12rem .5rem;font-family:ui-monospace,monospace}.status.server{color:#8a3f37;background:#f9eae7;border-color:#ecd3cd}.problem-card h3{display:flex;justify-content:space-between;gap:.5rem;margin:1rem 0 .5rem}.problem-card h3 span{color:#698778}.problem-card p{font-size:.88rem;color:var(--muted);margin:0 0 1.2rem}.problem-card>code{margin-top:auto;font-size:.72rem;color:#53685e}.note{background:#edf2ee;border-left:3px solid #779e8b;padding:1rem 1.2rem;margin:1.8rem 0;color:#354b42;font-size:.9rem}.note p:last-child{margin-bottom:0}.definition{max-width:800px;margin:2.5rem auto}.back{display:inline-block;font-size:.85rem;margin-bottom:2.5rem}.definition section{margin-top:2.5rem}.uri-box{padding:1.4rem;background:#fff;border:1px solid var(--line);border-radius:10px}.uri-box h2{margin-top:0}.uri-box p{font-size:.85rem;color:var(--muted)}pre{background:#142d29;color:#e6f3e9;border-radius:8px;padding:1.25rem;overflow-x:auto;font-size:.85rem;line-height:1.7;tab-size:2}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.9em}dt{font-weight:700;margin-top:1rem}dd{margin:.2rem 0 0;color:var(--muted)}li{margin:.5rem 0}.copy-row{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap}.copy-status{font-size:.8rem;color:var(--muted)}footer{border-top:1px solid var(--line);font-size:.75rem;color:var(--muted);margin-top:1rem}.guide{max-width:800px;margin:4rem auto}.guide section{margin:2.5rem 0}.skip{position:absolute;left:1rem;top:-100px;background:#fff;padding:1rem;z-index:10}.skip:focus{top:1rem}@media(max-width:900px){.catalogue{grid-template-columns:repeat(2,minmax(0,1fr))}.brand-label{display:none}}@media(max-width:580px){main{padding:0 1.2rem 3rem}.site-header,footer{padding:1.2rem;flex-wrap:wrap}.site-header{gap:.8rem}nav{gap:1rem}.catalogue{grid-template-columns:1fr}.hero{padding:3rem 0}.section-heading{align-items:baseline}.definition{margin-top:1.5rem}.uri-box{padding:1rem}.guide{margin-top:2.5rem}}