/* Shared Login Button - Top Right Rectangular Design */
.shared-login-btn {
    position: fixed;
    top: 2.5rem;
    right: 2.5rem;
    z-index: 30;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.23, 1, 0.32, 1);
    
    /* Rectangular button styling */
    width: 120px;
    height: 40px;
    border: 1px solid rgba(74, 222, 128, 0.3);
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.shared-login-btn .login-text {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: #4ade80;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.shared-login-btn:hover {
    border-color: rgba(74, 222, 128, 0.7);
    box-shadow: 0 0 20px rgba(74, 222, 128, 0.1);
    transform: scale(1.05);
    background: rgba(0, 0, 0, 0.9);
}

.shared-login-btn:hover .login-text {
    color: #ffffff;
}

@media (max-width: 768px) {
    .shared-login-btn {
        top: 1.2rem;
        right: 1.2rem;
        width: 100px;
        height: 36px;
    }
    
    .shared-login-btn .login-text {
        font-size: 0.65rem;
    }
}