/* Static topic pages (/learn/): built on the policy-page layout (legal.css) */
.learn-shell{flex:1;width:100%;box-sizing:border-box;display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:clamp(20px,4vw,48px);max-width:1180px;margin:0 auto;padding:clamp(24px,5vh,44px) clamp(16px,3vw,28px) 40px}
.learn-shell.hub{grid-template-columns:minmax(0,1fr)}
.learn-main.legal{max-width:820px}
.learn-shell.hub .learn-main.legal{max-width:none}
.learn-crumbs{display:flex;gap:8px;align-items:center;margin-bottom:12px;font:500 13px var(--body);color:var(--muted)}
.learn-crumbs a{color:var(--muted)!important;text-decoration:none}
.learn-crumbs a:hover{color:var(--ink)!important}
.learn-blurb{font-size:17px!important;color:var(--ink)!important;opacity:.86;margin:4px 0 16px}
.learn-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.learn-meta span{padding:5px 11px;border-radius:999px;border:1px solid var(--line);background:var(--panel);font:12.5px var(--mono);color:var(--muted)}
.learn-meta b{color:var(--ink);font-weight:600;margin-right:4px}
.legal a.learn-cta{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:14px;text-decoration:none;color:var(--ink);border:1px solid color-mix(in srgb,var(--b1) 45%,var(--line));background:color-mix(in srgb,var(--b1) 10%,var(--panel));transition:border-color .15s,transform .15s}
.legal a.learn-cta:hover{border-color:var(--b1);transform:translateY(-1px);color:var(--ink)}
.learn-cta-play{display:grid;place-items:center;flex:none;width:42px;height:42px;border-radius:50%;color:#1d1206;font-size:15px;background:linear-gradient(135deg,var(--b2),var(--b1));box-shadow:0 6px 18px -6px color-mix(in srgb,var(--b1) 80%,transparent)}
.learn-cta b{display:block;font:700 16px var(--display)}
.learn-cta small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.learn-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.learn-tabs input{position:absolute;opacity:0;pointer-events:none}
.learn-tabs label{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--panel);color:var(--muted);font:600 13px var(--body);cursor:pointer}
.learn-tabs input:checked+label{color:#1d1206;border-color:transparent;background:linear-gradient(90deg,var(--b2),var(--b1))}
.learn-tabs input:focus-visible+label{outline:2px solid var(--b1);outline-offset:2px}
.learn-code{display:none;flex-basis:100%;margin:6px 0 0;padding:16px 18px;overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--stage);font:13px/1.65 var(--mono);color:var(--ink);tab-size:4}
#lang-cs:checked~.learn-code[data-lang="cs"],#lang-cpp:checked~.learn-code[data-lang="cpp"],#lang-py:checked~.learn-code[data-lang="py"]{display:block}
.learn-pager{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:34px}
.legal .learn-pager a{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink);text-decoration:none;font:600 14px var(--body)}
.legal .learn-pager a:hover{border-color:color-mix(in srgb,var(--b1) 60%,var(--line))}
.learn-pager a.next{text-align:right}
.learn-pager small{display:block;color:var(--muted);font:500 12px var(--body);margin-bottom:2px}
.learn-side{position:sticky;top:84px;align-self:start;display:flex;flex-direction:column;gap:2px;max-height:calc(100vh - 110px);overflow:auto;padding:0}
.learn-side p{margin:0 0 6px 12px;font:600 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.learn-side a{display:block;padding:7px 12px;border-radius:9px;color:var(--muted);text-decoration:none;font:500 13.5px var(--body)}
.learn-side a:hover{color:var(--ink);background:color-mix(in srgb,var(--ink) 5%,transparent)}
.learn-side a[aria-current="page"]{color:var(--ink);font-weight:600;background:color-mix(in srgb,var(--b1) 14%,transparent)}
.learn-jump{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 8px}
.legal .learn-jump a{padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--panel);color:var(--muted);text-decoration:none;font:500 13px var(--body)}
.legal .learn-jump a:hover{color:var(--ink);border-color:color-mix(in srgb,var(--b1) 50%,var(--line))}
.learn-group{scroll-margin-top:80px}
.learn-group>p{margin:0 0 12px}
.learn-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.legal .learn-grid a{display:flex;flex-direction:column;gap:4px;padding:14px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--panel) 85%,transparent);color:var(--ink);text-decoration:none;transition:border-color .15s,transform .15s}
.legal .learn-grid a:hover{border-color:color-mix(in srgb,var(--b1) 60%,var(--line));transform:translateY(-1px)}
.learn-grid b{font:700 15px var(--display)}
.learn-grid span{color:var(--muted);font-size:13px;line-height:1.5}
.learn-grid em{margin-top:auto;padding-top:4px;font:normal 12px var(--mono);color:var(--b1)}
@media(max-width:900px){.learn-shell{grid-template-columns:minmax(0,1fr)}.learn-side{display:none}}
@media(max-width:520px){.learn-pager{grid-template-columns:1fr}.learn-pager a.next{text-align:left}.learn-blurb{font-size:16px!important}}