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#0000001a}.login-content h2{margin:0 0 .5rem;color:#333;font-size:1.75rem}.login-subtitle{color:#666;margin:0 0 1.5rem;font-size:.95rem}.manager-login-btn{position:fixed;bottom:20px;right:20px;padding:.5rem 1rem;background:#667eea1a;border:1px solid rgba(102,126,234,.3);border-radius:20px;color:#667eea;font-size:.85rem;cursor:pointer;opacity:.6;transition:opacity .2s;z-index:100;font-weight:500}.manager-login-btn:hover{opacity:1;background:#667eea33}.instructor-login-btn{position:fixed;bottom:20px;left:20px;padding:.5rem 1rem;background:#22c55e1a;border:1px solid rgba(34,197,94,.3);border-radius:20px;color:#22c55e;font-size:.85rem;cursor:pointer;opacity:.6;transition:opacity .2s;z-index:100;font-weight:500}.instructor-login-btn:hover{opacity:1;background:#22c55e33}@media(max-width:768px){.nav-container{padding:0 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