:root{--bg:#f5f7fb;--card:#fff;--ink:#12203f;--mut:#56627a;--line:#dbe1ee;--acc:#0e7f70;--acc2:#f2b134;--hero:#12203f;color-scheme:light;--hd:'Bricolage Grotesque','Trebuchet MS',sans-serif;--bd:'Hanken Grotesk',system-ui,sans-serif}
@media(prefers-color-scheme:dark){:root{--bg:#0c1426;--card:#152140;--ink:#e9eefb;--mut:#a3b0cc;--line:#26345a;--acc:#35c4b0;--hero:#0a1124;color-scheme:dark}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:400 1rem/1.6 var(--bd)}
h1,h2,h3{font-family:var(--hd);line-height:1.15;margin:0 0 .6rem}h1{font-size:clamp(1.9rem,6vw,3rem);font-weight:800}h2{font-size:clamp(1.4rem,4vw,1.9rem);font-weight:800}h3{font-size:1.1rem;font-weight:600}
a{color:inherit}p{margin:0 0 1rem;max-width:64ch}.mut{color:var(--mut)}:focus-visible{outline:3px solid var(--acc2);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.1rem}
header.top{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:56px;flex-wrap:wrap}
.logo{font:800 1.2rem var(--hd);text-decoration:none}.logo b{color:var(--acc)}
nav a{margin-left:1rem;text-decoration:none;font-weight:500;font-size:.95rem}nav a:hover{text-decoration:underline}
.btn{display:inline-block;border:2px solid var(--ink);color:var(--ink);padding:.7rem 1.2rem;border-radius:10px;font:700 1rem var(--bd);text-decoration:none;min-height:44px}
.btn.p{background:var(--acc2);border-color:var(--acc2);color:#12203f}
.hero{background:var(--hero);color:#e9eefb;padding:3rem 0 3.2rem}.hero p{color:#b9c4de}.hero .btn{color:#e9eefb;border-color:#e9eefb}.hero .btn.p{color:#12203f;border-color:var(--acc2)}
.crumb{font-size:.9rem;color:#b9c4de;margin-bottom:.8rem}.crumb a{text-decoration:none}.crumb a:hover{text-decoration:underline}
section.s{padding:2.5rem 0}.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:1.2rem;display:flex;flex-direction:column;gap:.4rem}.card .btn{margin-top:auto;align-self:flex-start}
.ch{border-left:6px solid var(--acc);text-decoration:none}a.ch:hover{border-color:var(--acc2)}
.tag{display:inline-block;font-size:.8rem;font-weight:700;padding:.1rem .6rem;border-radius:99px;border:1px solid var(--line);align-self:flex-start}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.9rem 1.1rem;margin-bottom:.8rem}summary{cursor:pointer;font-weight:700}
details ol{margin:.6rem 0;padding-left:1.4rem}details li{margin:.2rem 0}.ans{margin:.5rem 0 0;color:var(--mut)}
.pn{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-top:2rem}
footer{border-top:1px solid var(--line);padding:2rem 0;color:var(--mut);font-size:.92rem}footer a{margin-right:1rem;white-space:nowrap;display:inline-block;line-height:2}