:root{--ink:#183d3b;--muted:#677b78;--paper:#f5f6f0;--accent:#cde677;--line:#dce3d9;--white:#fff;--danger:#9c3535}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,'Segoe UI',sans-serif}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button,input,textarea{font:inherit}button,a,input,textarea,[contenteditable]{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid #638f2d;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(32px,4vw,54px);line-height:1.12;letter-spacing:-1.8px;font-weight:650;margin-bottom:22px}h2{font-size:27px;line-height:1.25;letter-spacing:-.6px}.header{position:sticky;top:0;z-index:100;max-width:1240px;margin:auto;padding:14px 40px;display:flex;align-items:center;justify-content:space-between;gap:25px;border-bottom:1px solid 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48%;background:var(--accent);transform:rotate(7deg)}.hero-art>span{font-family:Georgia,serif;font-size:130px;letter-spacing:-15px;transform:rotate(-14deg);margin-right:20px}.hero-art small{position:absolute;bottom:12px;right:0;line-height:1.4;font-size:13px;background:var(--ink);color:#fff;border-radius:50%;padding:23px;transform:rotate(-7deg)}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:13px 22px;border-radius:8px;background:var(--ink);color:white;border:1px solid var(--ink);font-weight:550;font-size:15px;cursor:pointer;text-decoration:none}.button:hover{background:#285752;text-decoration:none}.button:disabled{opacity:.6;cursor:wait}.button.small{padding:8px 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system-ui;letter-spacing:1px;right:16px;bottom:16px}.course-body{padding:24px}.course-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin-bottom:20px}.badge{display:inline-block;padding:4px 10px;border-radius:20px;background:#eef4df;color:var(--ink);font-size:11px;min-height:24px}.course-body h2{font-size:23px}.course-body p{color:var(--muted);font-size:14px}.course-body .button{width:100%;margin-top:20px}.progress-label{display:flex;justify-content:space-between;gap:10px;font-size:12px;margin-top:24px}progress{appearance:none;width:100%;height:6px;border:0;border-radius:10px;overflow:hidden;background:#e7ecdf}progress::-webkit-progress-bar{background:#e7ecdf}progress::-webkit-progress-value{background:#86a841}progress::-moz-progress-bar{background:#86a841}.login{max-width:480px;margin:35px auto;padding:40px}.login h1{font-size:34px}.login .button{width:100%;margin-top:10px}.login .back{margin:20px 0 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/* ????? ??? ?????????? ????? ? ????????? ??????????. */
.feed{max-width:none}
.post.card{background:#e8eddf;border:0;border-radius:24px;padding:58px;margin-bottom:32px}
.post .document{font-size:18px;color:var(--muted);line-height:1.7}
.post .document h2,.post .document h3{color:var(--ink)}
.post .document h2{font-size:clamp(32px,4vw,54px);line-height:1.12;letter-spacing:-1.8px;font-weight:650;margin-bottom:22px}
.material-banner{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:30px;align-items:stretch}
.material-banner>div{min-width:0}
.post .material-banner .eyebrow{color:var(--ink);margin-bottom:20px}
.post .material-banner .button{margin-top:15px;color:white;text-decoration:none}
.post .material-banner .hero-art{color:var(--ink)}
.post-excerpt:has(.material-banner){max-height:none;overflow:visible}
.post-excerpt.is-long:after{background:linear-gradient(transparent,#e8eddf)}
.read-more[hidden]{display:none}
@media(max-width:900px){.post.card{padding:35px}.material-banner{grid-template-columns:minmax(0,1fr) 200px}}
@media(max-width:650px){.post.card{padding:30px 25px;border-radius:16px}.material-banner{display:block}.post .document{font-size:16px}.post .document h2{font-size:38px}}
@media(max-width:650px){
  .header.guest-header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}
  .guest-header .brand{min-width:0;white-space:nowrap}
  .guest-header .brand-icon{flex-shrink:0}
  .header nav.guest{width:auto;justify-self:end;white-space:nowrap}
}
@media(max-width:360px){
  .header.guest-header{padding:10px 12px}
  .guest-header .brand{gap:8px;font-size:15px}
  .guest-header .brand-icon{width:32px;height:32px}
  .guest-header nav.guest .button.small{padding:8px 12px}
}