diff --git a/frontend/textbooks/algebra_8.html b/frontend/textbooks/algebra_8.html
index 2225612..a943690 100644
--- a/frontend/textbooks/algebra_8.html
+++ b/frontend/textbooks/algebra_8.html
@@ -38,11 +38,11 @@ input,select,textarea{font-family:inherit}
 .ic{width:1em;height:1em;display:inline-block;vertical-align:-.125em;flex-shrink:0;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
 
 /* HEADER */
-.hdr{position:relative;background:linear-gradient(110deg,#c2185b 0%,#e91e63 55%,#ec407a 100%);color:#fff;padding:24px 22px 22px;overflow:hidden;border-bottom:2px solid rgba(255,180,210,.2)}
-.hdr::before{content:'АЛГЕБРА';position:absolute;right:-12px;top:-18%;font-size:clamp(5rem,16vw,13rem);font-weight:900;letter-spacing:-.04em;color:transparent;-webkit-text-stroke:1.5px rgba(255,220,235,.10);line-height:1;pointer-events:none;user-select:none;z-index:0}
+.hdr{position:relative;background:linear-gradient(110deg,#c2185b 0%,#e91e63 55%,#ec407a 100%);color:#fff;padding:34px 22px 24px;overflow:hidden;border-bottom:2px solid rgba(255,180,210,.2)}
+.hdr::before{content:'АЛГЕБРА';position:absolute;right:-12px;top:-10%;font-size:clamp(5rem,16vw,12rem);font-weight:900;letter-spacing:-.04em;color:transparent;-webkit-text-stroke:1.5px rgba(255,220,235,.10);line-height:1;pointer-events:none;user-select:none;z-index:0}
 .hdr-row{position:relative;z-index:1;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
-.hdr h1{font-size:1.5rem;font-weight:900;letter-spacing:-.01em}
-.hdr-sub{font-size:.82rem;opacity:.85;margin-top:4px;font-weight:500}
+.hdr h1{font-size:1.5rem;font-weight:900;letter-spacing:-.01em;line-height:1.25;padding-top:2px}
+.hdr-sub{font-size:.82rem;opacity:.85;margin-top:6px;font-weight:500;line-height:1.35}
 .hdr-side{margin-left:auto;display:flex;gap:8px;align-items:center}
 .hdr-btn{padding:7px 12px;border-radius:9px;background:rgba(255,255,255,.14);color:#fff;font-weight:600;font-size:.82rem;display:inline-flex;align-items:center;gap:6px;transition:background .15s}
 .hdr-btn:hover{background:rgba(255,255,255,.24)}