.header{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(180deg,#1a3d73,#0d2d5c);padding:1.5rem 10rem;@media screen and (max-width:1273px){padding-left:7.5rem;padding-bottom:2.5rem;padding-right:7.5rem;padding-top:2.5rem}@media screen and (max-width:1189px){padding-left:5rem;padding-bottom:2.5rem;padding-right:5rem;padding-top:2.5rem}@media screen and (max-width:768px){padding-left:2.5rem;padding-bottom:2.5rem;padding-right:2.5rem;padding-top:2.5rem}@media screen and (max-width:646px){padding-left:2rem;padding-bottom:2rem;padding-right:2rem;padding-top:2rem}box-shadow:0 2px 4px rgba(0,0,0,.1)}.logo-container{display:flex;align-items:center;gap:1rem;text-decoration:none}.logo-image{height:68px;width:auto;flex-shrink:0}.logo-divider{width:1px;height:48px;background:rgba(255,255,255,.35);flex-shrink:0}.logo-text{display:flex;flex-direction:column;gap:.1rem}.logo-name{color:#ffffff;font-size:1.05rem;font-weight:700;letter-spacing:.01em;line-height:1.2;white-space:nowrap}.logo-detail{color:rgba(255,255,255,.82);font-size:.72rem;font-weight:400;letter-spacing:.02em;line-height:1.4;white-space:nowrap}@media screen and (max-width:900px){.logo-image{height:56px}.logo-name{font-size:.95rem}.logo-detail{font-size:.68rem}}@media screen and (max-width:700px){.logo-divider,.logo-text{display:none}.logo-image{height:52px}}.button-container{display:flex;align-items:center}.change-katedra-btn{display:inline-block;padding:.65rem 1.2rem;font-size:1rem;font-weight:600;color:#f9fafc;border:1px solid #f9fafc;border-radius:5px;cursor:pointer;transition:background-color .3s ease;background:none;text-decoration:none;&:hover{color:#d3dce4;border-color:#d3dce4}@media screen and (max-width:768px){padding-left:1.1rem;padding-bottom:.65rem;padding-right:1.1rem;padding-top:.65rem}@media screen and (max-width:647px){padding-left:1rem;padding-bottom:.65rem;padding-right:1rem;padding-top:.65rem}@media screen and (max-width:600px){font-size:.85rem;padding-left:.65rem;padding-bottom:.5rem;padding-right:.65rem;padding-top:.5rem;font-weight:500}}