:root{--bg:#0C0D10;--sf:#14161B;--sf2:#1B1E25;--bd:#262A33;--tx:#ECEFF4;--tx2:#9AA3B2;--ac:#D4F24A;--acInk:#0C0D10;--bad:#FF7B72;--good:#7EE787;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.6 Geist,system-ui,sans-serif}
a{color:var(--ac)}.wrap{max-width:860px;margin:0 auto;padding:0 20px}
.top{border-bottom:1px solid var(--bd);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);z-index:2}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--tx);text-decoration:none;font-weight:600;font-size:18px}
.logo{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--ac);color:var(--acInk);font:600 14px 'Geist Mono',monospace}
.top nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.top nav a{color:var(--tx2);text-decoration:none;font-weight:500}.top nav a:hover{color:var(--tx)}
.btn{display:inline-block;background:var(--ac);color:var(--acInk)!important;text-decoration:none;font-weight:700;padding:12px 20px;border-radius:12px}.btn.small{padding:8px 14px;border-radius:10px}
main{padding-top:24px;padding-bottom:64px}.crumbs{font-size:13px;color:var(--tx2);margin-bottom:20px}.crumbs a{color:var(--tx2)}
h1{font:700 clamp(32px,5vw,48px)/1.05 'Bricolage Grotesque',Geist,sans-serif;letter-spacing:-.02em;margin:8px 0 16px}
h2{font:700 26px/1.2 'Bricolage Grotesque',Geist,sans-serif;margin:48px 0 12px}h3{font-size:17px;margin:24px 0 8px}
.lead{font-size:19px;color:var(--tx2);margin:0 0 24px}.muted{color:var(--tx2)}.kicker{font-size:13px;font-weight:700;color:var(--tx2);text-transform:uppercase;letter-spacing:.04em;margin:0}
.toc{border:1px solid var(--bd);border-radius:14px;padding:16px 20px;background:var(--sf)}.toc ol{margin:8px 0 0;padding-left:20px}
.lesson{border-top:1px solid var(--bd);margin-top:40px}
table.phrases{width:100%;border-collapse:collapse;font-size:15px}.phrases th{text-align:left;color:var(--tx2);font-size:13px;padding:8px 10px}.phrases td{border-top:1px solid var(--bd);padding:10px}.phrases td:first-child{font-family:'Geist Mono',monospace}
.grammar{background:var(--sf);border:1px solid var(--bd);border-radius:14px;padding:16px 20px;margin:20px 0}.formula{font:600 20px 'Geist Mono',monospace;margin:6px 0}.example{font-family:'Geist Mono',monospace}.example strong,.phrases strong,.dialog strong{color:var(--ac)}.tip{margin-bottom:0}
.dialog{background:var(--sf2);border-radius:14px;padding:12px 18px}.dialog p{margin:6px 0}.dialog span{font-family:'Geist Mono',monospace}
.pitfall{display:grid;gap:8px}.pitfall p{margin:0;padding:12px 16px;border-radius:12px;font-family:'Geist Mono',monospace}.wrong{background:color-mix(in srgb,var(--bad) 14%,transparent)}.right{background:color-mix(in srgb,var(--good) 14%,transparent)}
.cta{margin:48px 0;padding:24px;border-radius:18px;background:var(--sf);border:1px solid color-mix(in srgb,var(--ac) 45%,var(--bd))}.cta p{margin:0 0 16px;font-size:18px;font-weight:600}.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}.cta .link{color:var(--tx2)}
.cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.cards a{display:flex;flex-direction:column;gap:4px;height:100%;padding:14px 16px;border:1px solid var(--bd);border-radius:14px;background:var(--sf);color:var(--tx);text-decoration:none}.cards a:hover{border-color:var(--tx2)}.cards span{color:var(--tx2);font-size:14px}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:48px;flex-wrap:wrap}
.foot{border-top:1px solid var(--bd);color:var(--tx2);font-size:14px}.foot .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:24px}.foot nav{display:flex;gap:16px;flex-wrap:wrap}.foot a{color:var(--tx2)}
.table-wrap{overflow-x:auto}main ul{padding-left:22px}main li{margin:4px 0}
.seo-fallback{max-width:760px;margin:0 auto;padding:64px 20px;color:#ECEFF4;font:16px/1.6 Geist,system-ui,sans-serif}.seo-fallback a{color:#D4F24A}